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QCChart3D 3D Charting Tools for .Net - Quinn

1. C public TimeGroupDataset string sname ChartCalendar x ChartCalendar y If you manually scale the TimeCoordinates object you can proceed as in all the other examples that use a date time x axis If you need to use the auto scaling capability you will need to add a few additional steps Place the data in a TimeGroupDataset dataset and use it to auto scale a TimeCoordinates scaling object The only problem here is that since the y values are the time values the chart y axis will end up as the time axis and the x axis will end up the numeric axis Call the TimeCoordinates SwapScaleOrientation in order to get it back to the orientation we want This swaps the scale orientation so the x axis is the time axis and the y axis is the numeric axis See the second of the two examples below for more details about how to use date time values to specify the bar ends of a floating bar plot Group Plot Objects 267 Floating bar plot example that uses numeric values as the floating bar endpoints extracted from the example program Bargraphs FloatingBars C int nnumpnts 18 int numgroups 2 double x1 new double nnumpnts double yl new double numgroups nnumpnts x1 0 6 y 0 0 0 y1 1 0 12 xlIlI y 0 1 0 y 1 1 4 1 2 5 y Q2 7 y1 1 2 10 x1 3 4 y 0 3 0 y 1 3 2 GroupDataset Datasetl new GroupDataset Actual Sales x
2. sess 145 SetFractionalZ ViewportDepth method 145 Rendering Order of GraphObj Objects essen 149 Dynamic or Real Time Updates of Chart Objects sse 150 Placing Multiple Charts in C hart View sel 151 Multiple Coordinate Systems in the Same Chart 152 ChartView Object Resize Modes ia e beste tr data M a oed e UR ERR a deed 153 Chart View View Modes nis eeh eebe 155 Finding Chart REES 155 6 Backgrounds Walls Borders and Bitmaps a 157 Class Background rn ne a ea die 157 Class WallSD s an ea u De 163 pa so ne La en ee 167 Bar oec rcr 168 Linear S c P M 169 Class Linear Aig aco ne I dns 169 ere Ee 175 Class OD ARIS a I EHRE 175 Date TIME ARES na aa be dee ab buie aaa 182 Class me Axis en 182 Soon abel asl a a N re ee lange 193 Dcus E 193 Label E CEET 193 Glass Axis abe nein 194 NUMerIe EE 195 Class Numeric AXISLabelSus in a een 195 Time and Date Axis Labels a ea ie ae 200 Class SEMIS ARTS Eege 200 SEINE AXIS T ABE ne ei o ud ep on te E sitse OU aay 206 Class String AxisLabels s occides oe eee prd adeb ca adiens adno 206 DPSS TI esp OS diva Op Da M aab sonata pat uh usted avo HERE 211 Linear Logarithmic and Time Axis Grid E enee 211 Class Orig ues ote deem ee e ates de rere or s 211 10 Simple Plot Objects cuiii eda b pta een 219 PIMA SLATE PIOUS uud Rees 219 Ee EE e EEN 219 simple Ribbon UC 225 Class SimpleRibbon Plot iiec dete ree iE kun 225 Si
3. Define chart background Background background new Background pTransforml ChartObj PLOT BACKGROUND Color White chartVu AddChartObject background Define chart walls ChartAttribute wallAttrib new ChartAttribute Color Beige 1 DashStyle Solid Color LightBlue Wall3D xyMinZWall new Wall3D pTransforml ChartObj XY MAXZ PLANE 0 1 wallAttrib chartVu AddChartObject xyMinZWall Wall3D yzMinXWall new Wall3D pTransforml ChartObj YZ MINX PLANE 0 02 wallAttrib chartVu AddChartObject yzMinXWall Wall3D xzMinYWall new Wall3D pTransforml ChartObj XZ MINY PLANE 0 02 wallAttrib chartVu AddChartObject xzMinYWall 7 Axes Axis LinearAxis LogAxis TimeAxis Chart axes describe for the viewer the physical coordinate system used to scale the plot area volume of a chart A well defined visually appealing chart will display one or more axes with the following characteristics e Minimum and maximum values for axes endpoints that are appropriate for the displayed data e Appropriately spaced axis tick marks that permit the user to easily interpolate by simple inspection data values located between labeled tick marks e Axis tick mark labels that fall on logical even intervals e Flexible axis placement inside or outside the plot area volume e Axes for linear time and logarithmic physical coordinate systems The programmer can explicitly set these characteristics or they can be calculated automatic
4. Define 5 different coorinate systems each uniquely scaled to a dataset Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim pTransform2 As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform2 AutoScale Dataset2 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim pTransform3 As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform3 AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim pTransform4 As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform4 AutoScale Dataset4 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim pTransform5 As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform5 AutoScale Dataset5 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR 345 346 Zooming Define a zoom object using a custom zoom class Dim zpos As Double 0 0 Dim transformArray As CartesianCoordinates pTransforml pTransform2 _ pTransform3 pTransform4 pTransform5 Dim zoomObj As New ZoomWithStack chartVu transformArray zpos True zoomObj SetButtonMask MouseButtons Left zoomObj SetZzoomYEnable True zoomObj SetZzoomXEnable True zoomObj SetZoomXRoundMode ChartObj AUTOAXES FAR zoomObj SetZoomYRoundMode ChartObj AUTOAXES FAR zoomObj SetEnable
5. Sammary description for UserControll lt summary gt public class UserControll ChartView lt summary gt Required designer variable lt summary gt private System ComponentModel Container components null ChartTitle mainTitle TimeCoordinates pTransforml LinearAxis yAxis public UserControll This call is required by the Windows Forms Form Designer InitializeComponent TODO Add any initialization after the InitForm call InitializeChart public void InitializeChart ChartView chartVu this Font theFont Simulate data int nnumpnts 8 ChartCalendar xl new ChartCalendar nnumpnts double yl new double nnumpnts 452 Using QCChart3D for Net to Create Web Applications double y2 new double nnumpnts double y3 new double nnumpnts summary gt Set Get the chart title summary public string ChartTitleText get return mainTitle TextString set mainTitle TextString value this UpdateDraw summary Set Get the yMax summary gt public double YMax get return pTransforml GetScaleStopY set pTransforml SetScaleStopY value yAxis CalcAutoAxis this UpdateDraw e Once you can compile the project copy the resulting WindowsControlLibrary1 DLL file to the desired folder on your web site In our example we copied the DLL to the http quinn curtis com UserControlTest Using QC
6. This class defines 2D symbols used by the SimplePlot scatter plot functions Pre defined symbols 2D Symbols NOSYMBOL SQUARE TRIANGLE DIAMOND CROSS PLUS STAR LINE HBAR VBAR CIRCLE 3D Symbols HBAR3D VBAR3D CUBE3D PLUS3D DIAMOND3D PYRAMID3D HOURGLASS3D ARROW3D CYLINDER3D SPHERE3D This class defines 3D symbols used by the SimplePlot scatter plot functions Pre defined 3D symbols include 52 Class Architecture cube pyramid diamond plus horizontal bar vertical bar 3D bar and cylinder and sphere Mouse Interaction Classes MouseListener MoveObj FindObj DataToolTip DataCursor MoveData ChartZoom RotateButtonUserControl RotateTranform3D Several classes implement delegates for mouse events The MouseListener class implements a generic interface for managing mouse events in a graph window The DataCursor MoveData MoveObj and ChartZoom classes also implement mouse event delegates that use the mouse to mark move and zoom chart objects and data MouseListener MoveObj FindObj DataCursor This class implements Net delegates that trap generic mouse events button events and mouse motion events that take place in a ChartView window A programmer can derive a class from MouseListener and override the methods for mouse events creating a custom version of the class This class extends the MouseListener class and it can select chart objects and move them Moveable chart objects include axes a
7. public override double CalcZValue double x double y double z x x 1 75 ChartSupport GetRandomDouble 0 5 y y 1 75 ChartSupport GetRandomDouble 0 5 z 1500 1500 0 Math Sin Math Sqrt x x y y return z void CreateRegularGridPolysurface ZValueFunctionClass zValueFunction new ZValueFunctionClass datasetl new ContourDataset Contour ChartDataset 11 11 5 0 5 0 6 0 6 0 zValueF nction Visual Basic Class ZValueFunctionClass Inherits SurfaceFunction Public Overrides Function CalcZValue ByVal x As Double ByVal y As Double As Double Dim z As Double x x 0 5 ChartSupport GetRandomDouble 0 5 Chart Datasets 87 y y 0 5 ChartSupport GetRandomDouble 0 5 z 2000 950 Math Sin Math Sqrt x x y y Return 2 End Function CalcZValue End Class ZValueFunctionClass Sub CreateRegularGridPolysurface Dim zValueFunction As New ZValueFunctionClass datasetl New ContourDataset Contour Dataset 32 32 _ 7 1 91 1 7 1 7 1 zValueFunction End Sub CreateRegularGridPolysurface Numeric Group Dataset Class GroupDataset ChartObj ChartDataset GroupDataset The GroupDataset class represents group data where every x value can have one or more y values The number of x values in a group plot is referred to as the number of columns or as numberDatapoints and the number of y values for each x value is referred to as the numb
8. 1 day major tick mark spacing 2 hour minor tick mark spacing 1 day major tick mark spacing 1 hour minor tick mark spacing 12 hour major tick mark spacing 1 hour minor tick mark spacing 8 hour major tick mark spacing hour minor tick mark spacing 4 hour major tick mark spacing 1 hour minor tick mark spacing 2 hour major tick mark spacing 1 hour minor tick mark spacing 1 hour major tick mark spacing 1 hour major tick mark spacing 30 minute minor tick mark spacing 1 hour major tick mark spacing 15 minute minor tick mark spacing 1 hour major tick mark spacing 10 minute minor tick mark spacing 1 hour major tick mark spacing 5 minute minor tick mark spacing TIMEAXIS HOUR2MINUTE TIMEAXIS HOURMINUTE TIMEAXIS 30MINUTEMINUTE TIMEAXIS 15MINUTEMINUTE TIMEAXIS 10MINUTEMINUTE TIMEAXIS SMINUTEMINUTE TIMEAXIS 2MINUTEMINUTE TIMEAXIS MINUTE TIMEAXIS MINUTE30SECOND TIMEAXIS MINUTEISSECOND TIMEAXIS MINUTEIOSECOND TIMEAXIS MINUTESSECOND TIMEAXIS MINUTE2SECOND TIMEAXIS MINUTESECOND TIMEAXIS 30SECONDSECOND TIMEAXIS 15SECONDSECOND TIMEAXIS 10SECONDSECOND Axes 185 1 hour major tick mark spacing 2 minute minor tick mark spacing 1 hour major tick mark spacing 1 minute minor tick mark spacing 30 minute major tick mark spacing 1 minute minor tick mark spacing 15 minute major tick mark spacing 1 minute minor tick mark spacing 10 minute major tick mark spacing 1 minute minor t
9. Data Tooltips Implementing drill down or tool tips consists of three major parts e Trapping a mouse event and determining the mouse cursor position in device and physical coordinates e Identifying the chart object that intersects the mouse event e Displaying appropriate information about the chart object There are many classes that aid in one or more of these functions The MouseListener class will trap a mouse event in the chart view The FindObj class will filter and return the chart object if any that intersects the mouse cursor when a mouse button is pressed The MoveObj class will filter select and move a chart object as the mouse is dragged across the chart The DataToolTip class will find the data point in a chart nearest the mouse cursor and display xy information about the data point as a popup ChartText display The DataToolTip can also be customized for the display of custom information about the selected data point It only takes a few lines to add a simple y value tool tip to an existing chart C DataToolTip datatooltip new DataToolTip chartVu datatooltip SetEnable true chartVu SetCurrentMouseListener datatooltip Visual Basic Dim datatooltip As New DataToolTip chartVu datatooltip SetEnable True chartVu SetCurrentMouseListener datatooltip FAQs 473 Many of the of the example programs that include tool tips including Bargraphs BarPlot3D Bargraphs DoubleBarPlot Bargraphs GroupBarg
10. Simple Ribbon Plots Class SimpleRibbonPlot GraphObj ChartPlot SimplePlot SimpleRibbonPlot The SimpleRibbonPlot class is a subclass of the SimplePlot class and and displays simple datasets in ribbon plot format The ribbon plot is similar to a line plot except that it has the added dimension of depth Data points are connected using a straight ribbon or a step ribbon The position of the ribbon with respect to the z axis is set using the attached datasets ImplicitZValue property The depth of the ribbon is specified using the attached datasets ImplicitDepthValue property Nasen plot can ta ec ot nile Tach pict segment can be EE a roque cotor Naben plots can be Med or arin Each plot segment can be exsigned a unique color Examples of filled and unfilled ribbon plots SimpleLinePlots LineFill SimpleRibbonPlot contructor Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal dataset As SimpleDataset ByVal attrib As ChartAttribute Ct public SimpleRibbonPlot PhysicalCoordinates transform SimpleDataset dataset ChartAttribute attrib transform The coordinate system for the new SimpleRibbonPlot object 226 Simple Plot Objects dataset The ribbon plot represents the values in this dataset attrib Specifies the attributes line color thickness and style fill color and fill mode for the ribbon plot A ChartAttribute object sets
11. Super Zooming of multiple physical coordinate systems The ChartZoom class also supports the zooming of multiple physical coordinate systems super zooming During the OnMouseUp event the zoom rectangle is converted from device units into the physical coordinates of each scale and this information is used to re scale each coordinate system and the axis objects associated with them Use the constructor below in order to super zoom a chart that has multiple coordinate systems and axes ChartZoom constructor Visual Basic Overloads Public Sub New ByVal component As ChartView _ ByVal transforms As PhysicalCoordinates ByVal brescale As Boolean Overloads Public Sub New ByVal component As ChartView _ ByVal transforms As PhysicalCoordinates ByVal zpos As Double _ 342 Zooming ByVal brescale As Boolean Ct public ChartZoom ChartView component PhysicalCoordinates transforms bool brescale public ChartZzoom ChartView component PhysicalCoordinates transforms double zpos bool brescale component A reference to the ChartView object that the chart is placed in transforms An array size numtransforms of the PhysicalCoordinates objects associated with the zoom operation zpos The z scale position of the zoom rectangle brescale True designates that the all of the scales should be re scaled once the final zoom rectangle is ascertained Call the Ch
12. e Time and date axes used to delineate a date time scale must be able to display and label tick marks for days weeks months and years taking into account the non uniformity of years months weeks and days in the Gregorian calendar The ChartCalendar Class 126 Scaling and Coordinate Systems The ChartCalendar class represents time and date information in the format used by the majority of the world It is a universal time class capable of representing time with a resolution of milliseconds and a dynamic range of hundreds of years It contains time and date fields that specify an exact moment in time i e November 7 2000 20 43 22 554 Since the ChartCalendar class represents both time of day and calendar dates is not necessary to use separate time of day and date classes to manage data collected every few seconds yet spans a day or more An example of this type of date time range is a graph of experimental data sampled every 15 seconds starting on June 12 2001 11 43 00 PM and continuing until June 15 2001 1 03 45 AM The major application for date time chart scaling on the Internet is the display of financial market data Multiply the number of on line investors using the charting tools of on line brokerage firms and financial web sites by the number of individual stocks bonds options and futures contracts that they are able to chart and it becomes apparent that the number of potential charts is almost infinite Many stocks have mor
13. for 1 07 2 57 i44 xdatastring xdatastring xdata i toFixed 1 ydatastring ydatastring ydata i toFixed 1 Add last values without comma xdatastring xdatastring xdata 5 toFixed 1 ydatastring ydatastring ydata 5 toFixed 1 function makenewdata var i 0 for i 0 i lt 6 i xdata i i ydata i 15 0 Math random lt SCRIPT gt Clicking the button will invoke a chart update using new random data The new image source URL is displayed in the HTML text box Display the URL of the HTML page and you should see a chart a button and a text field 446 Using QCChart3D for Net to Create Web Applications XData 1 2 3 4 5 6 YData 3 7 5 11 13 15 HTML Page Containing Graph Image e Another method is to use two WebForms in the ASP application The first form is setup much like the previous example The aspx page contains nothing and the aspx cs behind code page does all the work defining a chart and streaming the result back as a JPEG image The second WebForm page is used to host a collection of Web controls place on the aspx page One of these Web controls would be an Image web control The behind code page for this WebForm would connect the URL of the Image control to the first WebForm page which does nothing be serve up charts Our example Chart3DASPWebApp uses this approach The reason you might want to take this approach is that it is much Using QCChart3D
14. lt P gt lt input type text name T1 size 152 ID Texti P lt P gt amp nbsp lt P gt lt P gt HTML Page Containing Graph Image lt P gt lt FORM gt lt BODY gt lt HTML gt Note The button onclick event in the HTML example above is attached to updategraph JavaScript function defined below The HTML page combines an image tag displaying the chart a button and a text field Because the URL address of the ASP application is hard coded as the image source URL the chart is static because the data values do not change Adding some JavaScript code will make the chart dynamic creating new data random in this case and graphing the results lt SCRIPT LANGUAGE JavaScript gt yar xdata 1 0 2 0 3 0 4 0 5 0 6 0 Using QCChart3D for Net to Create Web Applications 445 var ydata 9 09 23 7 0 11 0 7 0 13 0 var xdatastring 1 0 2 0 3 0 4 0 5 0 0 0 var ydatastring 5 0 2 0 7 0 11 0 7 0 13 0 3 function updategraph makenewdata makedatastrings var urlstring http quinn curtis com VBChart3DWebApplicationl WebForml aspx WIDTH document simplegraph thegraph width toString amp HEIGHT document simplegraph thegraph height toString amp XDATA xdatastring amp YDATA ydatastring document simplegraph Tl value urlstring document simplegraph thegraph src urlstring function makedatastrings var i 0 xdatastring ydatastring
15. 0 double yMax 105 TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed TimeAxis xAxis new TimeAxis simpleTimeScale Create the linear y axis LinearAxis yAxis new LinearAxis simpleTimeScale ChartObj Y AXIS Visual Basic Define a Time coordinate system Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY 5 Dim yMin As Double 0 Dim yMax As Double 105 Dim simpleTimeScale As TimeCoordinates simpleTimeScale New TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed Dim xAxis As TimeAxis New TimeAxis simpleTimeScale Create the linear y axis Dim yAxis As LinearAxis New LinearAxis simpleTimeScale ChartObj Y AXIS 190 Axes Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Custom time axis example C Define a Time coordinate system ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 double axisintercept 0 0 double axisintercept2 0 0 double yMin 0 double yMax 105 int xAxisTickMarkFormat ChartObj TIMEAXIS MONT
16. 0 0 Dim y2 As Double 55 0 Dim stockTimeScale As TimeCoordinates stockTimeScale New TimeCoordinates dstart starttod yl dstop stoptod y2 ChartObj WEEK 5D Another technique uses the default constructor and scales the coordinates using the TimeCoordinates SetTimeCoordinateBounds method SetTimeCoordinateBounds Method Visual Basic Overloads Public Sub SetTimeCoordinateBounds _ ByVal dstart As ChartCalendar ByVal starttod As Long ByVal yl As Double _ ByVal dstop As ChartCalendar ByVal stoptod As Long ByVal y2 As Double _ ByVal nweektype As Integer Overloads Public Sub SetTimeCoordinateBounds _ ByVal dstart As ChartCalendar ByVal yl As Double ByVal zi As Double _ ByVal dstop As ChartCalendar ByVal y2 As Double _ ByVal z2 As Double C public void SetTimeCoordinateBounds ChartCalendar dstart double yl double z1 ChartCalendar dstop double y2 double 22 int nweektype public void SetTimeCoordinateBounds ChartCalendar dstart long starttod double yl ChartCalendar dstop long stoptod double y2 int nweektype SetTimeCoordinateBounds example for a 5 day week and 9 30 AM to 4 00 PM time of day range SetWeekType method Scaling and Coordinate Systems 139 C long starttod 9 60 30 60 1000 msecs cooresponding to 9 30 AM long stoptod 16 60 60 1000 msecs cooresponding to 4 00 PM ChartCalendar d
17. 1000 msecs cooresponding to 4 00 PM TimeCoordinates stockTimeScale new TimeCoordinates stockTimeScale SetWeekType ChartObj WEEK 5D stockTimeScale SetScaleStartTOD startTime 140 Scaling and Coordinate Systems stockTimeScale SetScaleStopTOD stopTime StockTimeScale AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Visual Basic the tradingDay array is initialized with the stock trading dates the stockPrice array is initialized with stock price data Dim Datasetl As TimeSimpleDataset _ New TimeSimpleDataset First tradingDay stockPrice Dim startTime As Long 9 60 30 60 1000 msecs cooresponding to 9 30 AM Dim stopTime As Long 16 60 60 1000 msecs cooresponding to 4 00 PM Dim stockTimeScale As TimeCoordinates new TimeCoordinates stockTimeScale SetWeekType ChartObj WEEK 5D stockTimeScale SetScaleStartTOD startTime stockTimeScale SetScaleStopTOD stopTime stockTimeScale AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Miscellaneous Coordinate System Topics Inverted Coordinate Systems Charts that use linear logarithmic and time coordinate systems usually follow the convention that values increase as you move from left to right and from bottom to top This is not always the case though Many standard charts that users want to reproduce on the computer have the x scale the y scale or both increase as you move from right to left an
18. 5 TERMINATION Without prejudice to any other rights Quinn Curtis Inc may terminate this EULA if you fail to comply with the terms and conditions of this EULA In such event you must destroy all copies of the SOFTWARE 6 COPYRIGHT The SOFTWARE is protected by United States copyright law and international treaty provisions You acknowledge that no title to the intellectual property in the SOFTWARE is transferred to you You further acknowledge that title and full ownership rights to the SOFTWARE will remain the exclusive property of Quinn Curtis Inc and you will not acquire any rights to the SOFTWARE except as expressly set forth in this license You agree that any copies of the SOFTWARE will contain the same proprietary notices which appear on and in the SOFTWARE 7 EXPORT RESTRICTIONS You agree that you will not export or re export the SOFTWARE to any country person entity or end user subject to U S A export restrictions Restricted countries currently include but are not necessarily limited to Cuba Iran Iraq Libya North Korea Sudan and Syria You warrant and represent that neither the U S A Bureau of Export Administration nor any other federal agency has suspended revoked or denied your export privileges 8 NO WARRANTIES Quinn Curtis Inc expressly disclaims any warranty for the SOFTWARE THE SOFTWARE AND ANY RELATED DOCUMENTATION IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING WITHO
19. AutoScale Datasetl ChartObj AUTOAXES FAR AutoScale Dataset2 ChartObj AUTOAXES FAR AutoScale Dataset3 ChartObj AUTOAXES FAR AutoScale Dataset4 ChartObj AUTOAXES FAR AutoScale Dataset5 ChartObj AUTOAXES FAR LINEAR SCA EAR SCA LINEAR SCA LINEAR SCA LE LE LE LE FAQs 467 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR 65 65 65 65 65 New Background pTransforml ChartObj GRAPH BACKGROUND Color White Chart Aart hartObject background Dim plotbackground As _ New Background pTransforml ChartObj PLOT BACKGROUND Color White chartVu AddChartObject plotbackground Dim attribl As New ChartAttribute Color Blue 2 DashStyle Solid Dim attrib2 As New ChartAttribute Color Red 2 DashStyle Solid Dim attrib3 As New ChartAttribute Color Green 2 DashStyle Solid 468 FAQs Dim attrib4 As New ChartAttribute Color Orange 2 DashStyle Solid Dim attrib5 As New ChartAttribute Color Magenta 2 DashStyle Solid xAxis New LinearAxis pTransforml ChartObj X AXIS xAxis SetLineWidth 2 chartVu AddChartObject xAxis yAxisl New LinearAxis pTransforml ChartObj Y AXIS yAxisl SetAxisIntercept 0 0 yAxisl SetChartObjAttributes attribl axis color matches line color chartVu AddChartObject yAxis1 yAxis2 New LinearAxis pTransform2 ChartObj Y AXIS yAxis2
20. TimeCoordinates simpleTimeScale new TimeCoordinates simpleTimeScale AutoScale dataset simpleTimeScale SetTimeScaleStart new ChartCalendar 1996 ChartObj JANUARY 5 simpleTimeScale SetTimeScaleStop new ChartCalendar 1997 ChartObj JANUARY 5 132 Scaling and Coordinate Systems Visual Basic Dim xData As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 New ChartCalendar 1996 ChartObj MARCH 5 New ChartCalendar 1996 ChartObj APRIL 5 _ New ChartCalendar 1996 ChartObj MAY 5 _ New ChartCalendar 1996 ChartObj JUNE 5 _ New ChartCalendar 1996 ChartObj JULY 5 New ChartCalendar 1996 ChartObj AUGUST 5 New ChartCalendar 1996 ChartObj SEPTEMBER 5 New ChartCalendar 1996 ChartObj OCTOBER 5 New ChartCalendar 1996 ChartObj NOVEMBER 5 Dim yData As Double 10 22 33 44 55 46 33 25 14 9 Dim zvalue As Double 0 0 Dim depthvalue As Double 1 0 Dim dataset As TimeSimpleDataset _ New TimeSimpleDataset Sales xData yData zvalue depthvalue Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale AutoScale dataset simpleTimeScale SetTimeScaleStart new ChartCalendar 1996 ChartObj JANUARY 5 simpleTimeScale SetTimeScaleStop new ChartCalendar 1997 ChartObj JANUARY 5 The auto scale methods that use an array of datasets to determine the proper range are very similar Example of auto scaling a TimeCoordinat
21. new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 double yMin 0 double yMax 105 double zMin 0 double zMax 10 TimeCoordinates simpleTimeScale new TimeCoordinates simpleTimeScale SetTimeCoordinateBounds xMin yMin zMin xMax yMax zMax Visual Basic Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY 5 Dim yMin As Double 0 Dim yMax As Double 105 Dim zMin As Double 0 Dim zMax As Double 10 Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale SetTimeCoordinateBounds xMin yMin zMin xMax yMax zMax It is possible to scale the bounds of the coordinate system based on the data values in a time based dataset TimeSimpleDataset and TimeGroupDataset There are constructors and methods that take a single dataset and others that take an array of datasets Example of auto scaling a TimeCoordinates object using a single dataset 130 Scaling and Coordinate Systems C ChartCalendar xData new ChartCalendar 1996 ChartObj FEBRUARY 5 new ChartCalendar 1996 ChartObj MARCH 5 new ChartCalendar 1996 ChartObj APRIL 5 new ChartCalendar 1996 ChartObj MAY 5 new ChartCalendar 1996 ChartObj JUNE 5 new ChartCalendar 1996 ChartObj JULY 5 new ChartCalendar 1996 ChartObj AUGUST
22. tickdir The direction of the tick marks Use one of the tick mark direction constants AXIS MIN AXIS CENTER or AXIS MAX Use the SetLineWidth SetLineStyle and SetColor methods to customize the drawing properties of the lines used to draw the axis line and tick marks Simple linear axis example C Define the coordinate system double xMin 5 double xMax 15 double yMin 0 double yMax 105 CartesianCoordinates simpleScale new CartesianCoordinates xMin yMin xMax yMax Create the x and y axes LinearAxis xAxis new LinearAxis simpleScale ChartObj X AXIS LinearAxis yAxis new LinearAxis simpleScale ChartObj Y AXIS Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis 174 Axes Visual Basic Define the coordinate system Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 15 Dim simpleScale As CartesianCoordinates New CartesianCoordinates xMin yMin xMax yMax Create the x and y axes Dim xAxis As LinearAxis New LinearAxis simpleScale ChartObj X AXIS Dim yAxis As LinearAxis New LinearAxis simpleScale ChartObj Y AXIS chartVu Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the cha
23. xl yl 222 Simple Plot Objects Datasetl ImplicitZValue 0 5 Dim Dataset2 As New TimeSimpleDataset Second xl y2 Create a coordinate system for the data Dim pTransforml As New TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area plransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 8 Set rotational parameters Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate pTransforml TheTransform3D ActualLightSource New Point3D 0 0 0 1 Set chart depth chartVu SetFractionalZViewportDepth 0 1 Create a simple line plot Dim attrib2 As New ChartAttribute Color Green 2 DashStyle Solid Dim thePlot2 As New SimpleLinePlot pTransforml Dataset2 attrib2 chartVu AddChartObject thePlot2 Simple 3D line plot example using segment colors extracted from the example program SimpleLinePlots LinePlot3D C int numPoints 15 double x1 new double numPoints double yl new double numPoints double y2 new double numPoints double y3 new double numPoints double z new double numPoints int 27 for 1 0 i numPoints i xl i double i 1 yli 20 0 50 0 l Math Exp x1 i 20 0 Simple Plot Objects 223 y2 i yl i 204 0 2 x1 1 0 6 ChartSupport GetRandomDouble y3 i yi i 20 0 4 xl i
24. 0 0 width height depth New Rectangle3D inset 0 5 inset 0 0 width height depth New Rectangle3D 0 5 inset 0 5 inset 0 0 width height depth If printobj Is Nothing Then printobj New ChartPrint components placement End If End Sub InitializePrintChart Private Sub Menultem2 Click ByVal sender As System Object ByVal e As System EventArgs Handles Menultem2 Click If printobj Is Nothing Then InitializePrintChart End If printobj DoPrintDialog End Sub Private Sub MenuItem3 Click ByVal sender As System Object ByVal e As System EventArgs Handles MenuItem3 Click If printobj Is Nothing Then InitializePrintChart End If printobj PageSetupItem sender e End Sub Private Sub MenuItem4 Click ByVal sender As System Object ByVal e As System EventArgs Handles MenuItem4 Click If printobj Is Nothing Then InitializePrintChart End If printobj PrintPreviewItem sender e End Sub Private Sub MenuItem5 Click ByVal sender As System Object File and Printer Rendering 421 ByVal e As System EventArgs Handles Menultem5 Click If printobj Is Nothing Then InitializePrintChart End If printobj DocPrintPage sender e End Sub Capturing the Chart as a Buffered Image Class BufferedImage ChartObj BufferedImage The BufferedImage class creates a Bitmap object that is used to render a ChartView object into an image buffer The rendering takes place when the BufferedImage Render metho
25. 220 221 223 225 227 228 232 234 236 237 239 240 242 243 244 249 251 253 254 256 258 260 261 263 265 266 268 271 273 276 279 281 283 286 288 289 291 293 294 296 297 299 300 302 303 305 307 309 311 315 318 321 323 325 327 329 332 333 334 338 340 341 344 347 350 352 353 354 358 361 365 372 373 376 377 379 383 387 388 389 390 391 392 395 396 398 402 404 405 407 408 409 413 414 417 421 423 425 431 440 453 472 475 477 478 479 480 481 483 485 Visual C 9 427 432 440 448 449 Wall3D 21 22 61 149 157 163 164 165 166 Working coordinates 17 18 61 105 107 109 WorkingCoordinates 17 18 61 105 107 109 World coordinates 17 18 61 105 107 Index 493 WorldCoordinates 17 18 61 105 107 Zooming 52 53 61 337 338 339 340 341 342 Zoom 346 343 344 346 470
26. 238 239 243 244 250 251 257 258 261 262 268 269 270 272 274 275 278 280 283 284 291 292 297 304 308 364 366 Polysurface 55 56 61 Polysurface class 55 56 61 Printing 54 61 413 414 415 416 417 418 419 420 Rectangle3D 55 56 58 61 110 114 401 403 404 414 418 419 420 Ribbon plots 45 61 219 225 227 Rotate Control 52 53 61 Rotating Charts 58 59 115 147 148 165 221 222 223 224 226 227 230 239 243 244 250 251 257 258 261 262 268 269 270 272 274 275 278 280 283 284 291 292 297 304 308 364 366 Scale classes 17 18 61 105 107 Scatter plots 42 47 61 219 236 237 238 239 240 329 Shapes 51 61 401 402 403 404 408 409 410 Simple 3D datasets 14 15 19 61 63 64 69 70 71 72 81 144 219 220 223 224 243 Simple datasets 14 15 16 19 58 61 63 64 65 66 67 68 69 72 73 77 81 120 121 122 123 125 142 219 220 223 224 225 228 229 230 232 237 344 345 361 362 364 366 434 442 464 467 485 Simple plot objects 12 28 42 44 45 46 47 48 51 52 53 61 81 149 219 225 228 231 237 241 250 253 257 260 264 266 282 286 296 361 SimpleBarPlot 42 43 61 219 231 232 233 234 235 236 329 349 SimpleDataset 14 15 16 19 58 61 63 64 65 66 67 68 69 72 73 77 81 120 121 122 123 125 142 219 220 223 224 225 228 229 230 232 237 344 34
27. AxisLabels NumericAxisLabels StringAxisLabels TimeAxisLabels Axis labels inform the user of the x y and z scales used in the chart The labels center on the major tick marks of the associated axis Axis labels are usually numbers times dates or arbitrary strings Possible date labels for todays date July 19 2002 2002 7 2002 7 19 2002 19 07 2002 02 7102 7 19 02 18 07 02 July Jul J Friday Fri F Class Architecture 27 Axis Labels Possible time labels Possible numeric labels for the current time for the value 12340 15 15 11 24 Hour Mode 12340 0 Decimal 15 15 24 Hour Mode 1 2340E4 Scientific 15 11 Minute Second 12 340K Business 3 15 11 12 Hour Mode 123400096 Percent 315 12 Hour Mode 1 2340x10 Exponent 512340 Currency av e 19 Multi line and rotated 0 360 degrees e axis labels are supported Western Eastern Southern Northern Sales Sales Sales Sales Region Region Region Region In addition to the predefined formats programmers can define custom time date and numeric formats AxisLabels NumericAxisLabels StringAxisLabels TimeAxisLabels Chart Plot Classes This class is the abstract base class for all axis label objects It places numeric labels date time labels or arbitrary text labels at the major tick marks of the associated axis object In addition to the standard font options type size style color etc axis label text can be rotated 360 degrees in
28. ByVal grid As Point3D C public ContourDataset string sname PoinksD grig This constructor creates a new ContourDataset object that represents a surface not necessarily a regular grid A triangularization algorithm calculates the interconnection of the vertices defining the surface The length of the x y and z arrays must match Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As Double ByVal y As Double _ ByVal z As Double Ct public ContourDataset string sname double x double y double z This constructor creates a new ContourDataset object defined using the supplied SurfaceFunction class evaluated for the range x1 y1 to x2 y2 at intervals equal to x2 x1 columns for the x direction and y2 y1 rows in the y direction This forms a regular grid surface Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal rows As Integer _ ByVal columns As Integer _ ByVal xl As Double _ ByVal yi As Double Chart Datasets 83 ByVal x2 As Double ByVal y2 As Double _ ByVal sf As SurfaceFunction C public ContourDataset string sname int rows int columns double x1 double yi double x2 double y2 SurfaceFunction sf The next constructor creates a dataset using the x y and z values stored in a file that uses the CSV Comma Separated Value format There are two
29. ByVal ngroup As Integer ByVal thefont As Font _ As Integer C public int AddLegendItem string stext int nsymbol ChartAttribute attrib Font thefont Legends 373 374 Legends public int AddLegendItem string stext GraphicsPath symbolshape ChartAttribute attrib Font thefont I public int AddLegendItem LegendItem legenditem I public int AddLegendItem string stext int nsymbol GraphObj chartobj Font thefont public int AddLegendItem string stext GraphicsPath symbolshape GraphObj chartobj Font thefont public int AddLegendItem string stext int nsymbol ChartPlot chartobj int ngroup Font thefont stext Specifies the text string for the legend item nsymbol Specifies the symbol for the legend item Use one of the chart symbol constants 2D Symbols NOSYMBOL SQUARE TRIANGLE DIAMOND CROSS PLUS STAR LINE HBAR VBAR CIRCLE 3D Symbols HBAR3D VBAR3D CUBE3D PLUS3D DIAMOND3D PYRAMID3D HOURGLASS3D ARROW3D CYLINDER3D SPHERE3D chartobj The color and fill attributes for the legend item are copied from the attributes of this ChartPlot object symbolshape Specifies a user defined shape to use as the legend item symbol attrib Specifies the ChartAttribute object to get the color and fill attributes of the legend item thefont Specifies the text font for the legend item Legends 375 The AddLegendltem returns
30. Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis The documentation for the various coordinate system and axis classes includes examples of manual scaling 11 How do I update my data and auto rescale the chart scales and axes to reflect the new data after it has already been drawn Updating data was discussed in FAQ 6 If you want the chart to rescale based on the new data call the appropriate coordinate systems auto scale method followed by the auto axis methods of all related axes Then call the ChartView UpdateDraw method For example C Create the ChartView object to place graph objects in TimeSimpleDataset Datasetl new TimeSimpleDataset Sales x1 y1 TimeCoordinates simpleTimeCoordinates new TimeCoordinates simpleTimeCoordinates AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR ChartView chartVu new ChartView Create the time axis x axis is assumed TimeAxis xAxis new TimeAxis simpleTimeCoordinates Create the linear y axis LinearAxis yAxis new LinearAxis simpleTimeCoordinates ChartObj Y AXIS 476 FAQs The following code would be in the code handling the rescale event Rescale chart based on a modified Datasetl datset simpleTimeCoordinates AutoScale Datasetl ChartObj AUTOAXES FAR Chart
31. Dim yData As Double 1 22 33 44 55 15 33 25 14 Dim zvalue As Doubl 0 0 oO ll Dim zdepth As Doubl 0 1 oO ll Dim dataset As SimpleDataset _ New SimpleDataset Sales xData yData zvalue zdepth Dim simpleScale As CartesianCoordinates New CartesianCoordinates simpleScale AutoScale dataset simpleScale InvertScaleY 5 The Chart View ChartView The starting point of a chart is the ChartView class The ChartView class derives from the System Windows Forms UserControl where the Forms class is the base class for the Net collection of standard components such as menus buttons check boxes etc The ChartView class contains a collection of all the chart objects displayed in the chart and will automatically update all chart objects when the underlying window moves resizes or otherwise needs to redraw in response to a UserControl paint event Since a ChartView derived window is a UserControl it can also be used as a container for any Net component that can be placed and positioned in UserControl windows using a Net layout managers UserControl ChartView The ChartView class has only one constructor with no arguments ChartView constructor Visual Basic Public Class ChartView Inherits UserControl Cf public class ChartView UserControl All chart objects that have a graphical representation i e that consist of lines bars arcs text etc are subclasses of the GraphObj abstract b
32. EI amp d z 5 E 11 09 03 11 16 03 11 23 03 11 30 03 lj Record High Low E Normal High Low W Todays High Low Floating stacked bar plot Bargraphs BostonClimate FloatingStackedBarPlot suolla Ga N e suolta 1997 1998 Class Architecture 35 This class displays stacked floating bar plots In a stacked floating bar plot each group is stacked on top of one another each group bar a cumulative sum of the related group items before it The bars are free floating because each bar does not reference a fixed base value as do stacked bars All bars in a given FloatingStackedBarPlot object have the same width The FloatingStackedBarPlot class can plot the bars as a 25 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently Driug gt salos ey eg eg A O I 1999 2000 2001 2002 2003 i RAT ee 1999 2000 2001 2002 2003 The Group bar graph and the Stacked bar graph represent two different ways of displaying the same data Group top and stacked bottom bar plots Bargraphs GroupBargraphs GroupBarPlot This class displays group data in a group bar format Individual bars the height of which corresponds to the group y values of the dataset display side by side as a group justified with respect to the x position value for each group The group bars share a common base value The Gro
33. New NumericAxisLabels yAxis Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis chartVu AddChartObject xAxisLabels chartVu AddChartObject yAxisLabels Custom time axis labels example C Font labelfont new Font Helvetica 10 FontStyle BOLD double xAxisLabelsRotation 0 0 int xAxisLabelsDir ChartObj AXIS MIN int xAxisLabelsEnds ChartObj LABEL ALL Color xAxisLabelsColor Color Black int xAxisNumericFormat ChartObj TIMEDATEFORMAT MY xAxisLabels SetAxisLabels labelfont xAxisLabelsRotation xAxisLabelsDir xAxisLabelsEnds xAxisLabelsColor xAxisLabels SetAxisLabelsFormat xAxisNumericFormat Visual Basic Dim labelfont As Font New Font Helvetica 10 FontStyle Bold Dim xAxisLabelsRotation As Double 0 0 Dim xAxisLabelsDir As Integer ChartObj AXIS MIN Dim xAxisLabelsEnds As Integer ChartObj LABEL ALL Axis Labels 205 206 Axis Labels Dim xAxisLabelsColor As Color Color Black Dim xAxisNumericFormat As Integer ChartObj TIMEDATEFORMAT MY xAxisLabels SetAxisLabels labelfont xAxisLabelsRotation _ xAxisLabelsDir xAxisLabelsEnds xAxisLabelsColor xAxisLabels SetAxisLabelsFormat xAxisNumericFormat String Axis Labels Class StringAxisLabels GraphObj ChartText AxisLabels String
34. True zoomObj SetZoomStackEnable True chartVu SetCurrentMouseListener zoomObj Limiting the Zoom Range A zoom window needs to have zoom limits placed on the minimum allowable zoom range for the x and y coordinates Unrestricted or infinte zooming can result in numeric under and overflows The default minimum allowable range resuling from a zoom operation is 1 1000 of the original coordinate range Change this value using the ChartZoom SetZoomRangeLimitsRatio method The minimum allowable range for this value is approximately 1 0e 9 Another way to set the minimum allowable range is to specify explicit values for the x and y range using the ChartZoom SetZoomRangeLimits method Specify the minimum allowable zoom range for a time axis in milliseconds for example ChartZoom SetZoomRangeLimits new Dimension 1000 0 01 sets the minimum zoom range for the time axis to 1 second and for the y axis to 0 01 The utility method ChartCalendar GetCalendarWidthV alue is useful for calculating the milliseconds for any time base and any number of units The code below sets a minimum zoom range of 45 minutes C double minZoomTimeRange ChartCalendar GetCalendarWidthValue ChartObj MINUTE 45 double minZoomYRange 0 01 Dimension zoomLimits new Dimension minZoomTimeRange minZoomYRange zoomObj SetZzoomRangeLimits zoomLimits Zooming 347 Visual Basic Dim minZoomTimeRange As double _ ChartObj GetCalendarWidthValue Cha
35. filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the first value from the row You can retrieve references to the internal arrays used to store the data using the SimpleDataset methods GetXData and GetYData Change the values in the data using these references You can also modify a point at a time using one of the SetDataPoint methods If you need to add new points to a dataset increasing its size use one of the AddDataPoint or InsertDataPoint methods Delete data points using the DeleteDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method The indexed accessor property of the SimpleGroupDataset will get or set a datapoint as a Point3D object Example of creating simple datasets from numeric arrays Visual Basic Dim x1 As Double 10 20 30 40 50 Chart Datasets 67 Dim yl As Double 9 21 20 40 30 Dim zvalue As Double 0 5 Dim depthvalue As Double 0 4 Dim Datasetl As SimpleDataset _ new SimpleDataset First xl yl zvalue depthvalue Dim n2 As Integer 9 Dim x2 n2 1 As Double Dim d dimension is upper limit not size Dim y2 n2 1 As Double Dim d dimension is upper limit not size x2 0 5 2 1 7 x2 n2 1 100 y2 0 15 vel 28 y2 n2 1 100 zvalue 0 0 Dim Dataset2 As SimpleDataset _ New
36. groupBarData 1 1 ChartObj PHYS POS chartLabell SetColor Color White chartLabell SetYJust ChartObj AXIS MIN chartVu AddChartObject chartLabell Chart Title Classes Class ChartTitle ChartText ChartTitle The ChartTitle class creates a header subheader or footer for a chart The most common constructors are 388 Text Classes ChartTitle constructors Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font ByVal tstring As String _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font ByVal tstring As String _ ByVal ntitletype As Integer _ ByVal ntitlepos As Integer _ Overloads Public Sub New _ ByVal tfont As Font _ ByVal tstring As String _ Overloads Public Sub New _ ByVal tfont As Font _ ByVal tstring As String _ ByVal ntitletype As Integer _ ByVal ntitlepos As Integer _ C public ChartTitle PhysicalCoordinates transform Font tiont string tstring E public ChartTitle PhysicalCoordinates transform Font tfont string tstring int ntitletype int ntitlepos public ChartTitle Font tfont string tstring public ChartTitle Font tfont string tstring int ntitletype int ntitlepos transform Places the text in the coordinate system defined by transform Text Classes 389 tfont A reference to a Font object tstring A reference to
37. i e MyTextClass using the string MyTextClass Create the MoveObj object and then install it using the ChartView SetCurrentMouseListener method This adds the MoveObj object as a MouseListener to the ChartView object Enable Disable the function using MoveObj SetEnable method Call MoveObj SetCurrentMouseListener null to remove the object as a mouse listener for the chart view Not all GraphObj derived object are moveable Call the GraphObj GetMoveableType method and check to see if it returns ChartObj OBJECT MOVEABLE Alternatively you can call the MoveObj IsMoveableObject method passing in a reference to the object Most moveable objects move unrestricted in the x and y direction There are exceptions though Axis objects move in the direction parallel to their current position effectively changing the axis intercept but not the extents of the axis endpoints Axis labels always track their reference axis The base axis defines the position of an AxisTitle text object and the chart view defines the position of a ChartTitle text object Attemp to move these Moving Objects and Data Points 331 objects and they revert to their original centered positions If you require moveable chart and axis titles use the generic ChartText class instead of the title classes Moving objects example Extracted from the MouseListeners MoveObjects class This is an example of a moveable Text object images axes and other plot objects can
38. read operation A DateTimeFormatInfo object and a date time format string in the CSV class control the interpretation of the ChartCalendar values The format in the file must match the format specified for the CSV class The underlying conversion mechanism calls the DateTime ToString String formatstring DateTimeFormatInfo info method for the conversion The default format for the date time formatstring object is M dd yy Call the SetDateTimeFomatString method to change the default date time format See the documentation for the Net DateTime ToString method to figure out the various formatting options for the date time format string If you are into internationalization and difficult to understand Net documentation you can also create your own DateTimeFormatInfo object installing it in the CSV object using CSV SetTimeDateFormat method The date time format string and the DateTimeFormatInfo object apply to both CSV files used for input and CSV files used for output If an attempt is made to read date time values that do not match the desired format the data values are set to invalid date time values 0 Chart Datasets You can retrieve a copy of the date time data using the TimeSimpleDataset GetTimeXData method It returns an array of ChartCalendar objects and it is not a reference to the underlying data The underlying data is stored as double values that represent the millisecond equivalent of the date time values The TimeSimpleData
39. rp Texti c p lt P gt amp nbsp lt P gt lt P gt HTML Page Containing Graph Image lt P gt lt FORM gt lt BODY gt lt HTML gt Note The button onclick event in the HTML example above is attached to updategraph JavaScript function defined below The HTML page combines an image tag displaying the chart a button and a text field Because the URL address of the ASP application is hard coded as the image source URL the chart is static because the data values do not change Adding some JavaScript code will make the chart dynamic creating new data random in this case and graphing the results lt SCRIPT LANGUAGE JavaScript gt var xdata 1 0 2 05 3 0 1 0 5 0 5 0 var ydata 5 05 2 0 7 0 11 8 7 0 12 07 var xdatastring 1 0 2 0 3 0 4 0 5 0 6 0 var ydatastring 5 0 2 0 7 0 11 0 7 0 13 Q 3 function updategraph makenewdata makedatastrings var urlstring http quinn curtis com Chart3DWebApplicationl WebForml aspx 3 WIDTH document simplegraph thegraph width toString amp SHEIGHT document simplegraph thegraph height toString amp XDATA xdatastring amp YDATA ydatastring document simplegraph Tl value urlstring document simplegraph thegraph src urlstring function makedatastrings var i 0 xdatastring ydatastring 438 Using QCChart3D for Net to Create Web Applications for i 0 i lt 5 i xdatastrihg xda
40. stockPriceData 2 0 24 low For i 1 To nNumPnts 1 xValues i currentdate Clone stockPriceData 3 i stockPriceData 3 i 1 _ 3 0 52 ChartSupport GetRandomDouble close stockPriceData 0 i stockPriceData 3 i 2 0 5 ChartSupport GetRandomDouble open minval Math Min stockPriceData 3 i stockPriceData 0 i maxval Math Max stockPriceData 3 i stockPriceData 0 i StockPriceData 1 i maxval 1 5 ChartSupport GetRandomDouble high stockPriceData 2 i minval 1 5 ChartSupport GetRandomDouble low currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode zValues i 0 3 Next i 104 Chart Datasets Dim depthvalue As Double 0 5 Dim Datasetl As New _ TimeGroupDataset3D Stock Data xValues stockPriceData zValues depthvalue 4 Scaling and Coordinate Systems ChartScale LinearScale LogScale TimeScale Transform3D UserCoordinates WorldCoordinates WorkingCoordinates PhysicalCoordinates CartesianCoordinates TimeCoordinates The starting point for all drawing in a window is the Net 2D device coordinate system The coordinate system uses a default device resolution of the underlying Net window A Net window maintains a viewport for the client area of the window controlling the position and size of the drawing area in the window Graphics output is clipped to the viewport preventing graphics output in one window from over writing graphics in a
41. text html charset windows 1252 gt lt script gt function ChangeTitle MyTestUserControll ChartTitleText textl value function ChangeYMax MyTestUserControll YMax text2 value lt script gt lt head gt lt body gt lt p gt lt b gt lt font face Arial size 4 gt Hello this page includes a windows user control lt font gt lt b gt lt p gt ES lt OBJECT id MyTestUserControll height 496 width 646 classid http quinn curtis com UserControlTest WindowsControlLibraryl dll WindowsControlLibraryl UserC ontroll VIEWASTEXT gt lt OBJECT gt fps P lt input type text id textl gt amp nbsp amp nbsp amp nbsp lt input type button value Change Title onclick ChangeTitle ID Buttonl NAME Buttonl P lt P gt lt P gt lt P gt lt input type text id text2 NAME text2 gt amp nbsp lt input type button value Change Y Max onclick ChangeYMax ID Button2 NAME Button2 gt lt P gt lt body gt lt html gt 25 Frequently Asked Questions FAQs 10 11 12 13 14 Is the QCChart3D for Net software backward compatible with the Charting Tools for Windows the Graphics Class Libraries for MFC 3D or OCChart2D for Net How do you create a chart with multiple coordinate systems and axes Can I add new axes text objects plot objects and images to a chart after it is already displayed or must I create a new chart from s
42. 0 and the tick marks can represent any logarithmic scale Date Axes Yen YeasQuarer 1905 KH 1095 2000 1000 wm 2000 0 22 m echten QuatevMesth 1030 wem 2000 2000 22 2000 am UO IA O Mentee Monthvday 7 Day Wach eow2 100102 nm 120102 10103 now 1320102 10103 Month Day fi Day Wesi Weeer 7 Day Week wows 20345 zeen aos 19003 vim WAOS a mn Dan Mour 10603 14203 12002 12742 19103 10203 15203 19403 There wre more Pan 40 diferert makiato axes types appropriate for scales ranging trom 1 secondio 100 years Date Axes QuatesMonth or e e EI EI o o EI ou 2001 2002 2003 JFMAMIJASONOJSFIFMAMISASONOSFMAMISASOND J 2000 2001 202 2003 Month Jan Feb Mar Agr May Jun Jw Aug Sep Oct Nev Dee Jan feb Mar Age May Jun Jul Aup Sep 2003 2004 Day o Day Wes wor F D rw T F or w T F M rt w wu ua 0 Dar Day Wes Wed mu Fn a Sun Mon Te Wed Thu Fri Za Gun Mon Tun Wed Thu 1503 203 Tara we more Pan 40 different makiato axes types appropriate for scales ranging trom 1 second to 100 years Date Axes Day Hew 8 HowHew 10002 10202 10209 gen 600 So 1600 000 0 10109 10202 S Mourtoer Movet Mitte ow am sw 200 o 190 200 300 aw wows sows Now Minute 35 Minuterinute Lad Zum 309 oo am o Da 00 ww ws 5 Mesue Minute Mosule t5 Seconds 600 on ow ow 620 om 00000 60100 60200 60300 60400 wor wor Mimte Second 8 Secon econd 00000 00100 00200 omc 00000 os 00010 00014 00020 101032 10100 There we more than 40 differen
43. 0 4 ChartSupport GetRandomDouble t z i ChartSupport GetRandomDouble Create datasets SimpleDataset3D Dataset3 new SimpleDataset3D Third x1 y3 z 3D Scale coordinate system for data SimpleDataset datasetarray Datasetl Dataset2 Dataset3 pTransforml new CartesianCoordinates ChartObj LINEAR SCALE Chartobj LINEAR SCALE pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area prransforml SetGraphBorderDiagonal 0 2 2 80 0 725 Set rotational parameters pTransforml AbsRotateCoordinateSystem new Point3D 10 15 0 Define third plot as a line plot using 3D data ChartAttribute attrib3 new ChartAttribute Color Blue 3 DashStyle Solid attrib3 SetSymbolSize 15 SimpleLinePlot thePlot3 new SimpleLinePlot pTransforml Dataset3 atrrib3 thePlot3 StepMode ChartObj STEP END hePlot3 SetSegmentAttributesMode true hePlot3 SetSegmentAttributes 8 segmentAttrib hePlot3 SetSegmentAttributes 9 segmentAttrib hePlot3 SetSegmentAttributes 0 segmentAttrib chartVu AddChartObject thePlot3 Visual Basic Dim numPoints As Integer 15 Dim xl numPoints 1 As Double Dim yl numPoints 1 As Double Dim y2 numPoints 1 As Double Dim y3 numPoints Double H D a Dim z numPoints 1 As Double 224 Simple Plot Objects Dim i As Integer For i 0 To numPoints 1 xl i CDbl i
44. 1 yl i 20 0 50 0 1 Math Exp x1 1 20 0 y2 i yl i 20 0 2 x1 i 0 6 ChartSupport GetRandomDouble y3 i yl i 20 0 4 x1 i 0 4 ChartSupport GetRandomDouble z i ChartSupport GetRandomDouble Next i Create datasets Dim Datasetl As New SimpleDataset First xl yl 2 1 2 D Dim Dataset2 As New SimpleDataset3D Second xl y2 z 3D Dim Dataset3 As New SimpleDataset3D Third xl y3 z 3D Scale coordinate system for data Dim datasetarray As SimpleDataset Datasetl Dataset2 Dataset3 Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 2 0 2 0 8 0 725 Set rotational parameters pTransforml AbsRotateCoordinateSystem New Point3D 10 15 0 Define second plot as a line plot using 2 1 2D data Dim attrib2 As New ChartAttribute Color Blue 3 DashStyle Solid Datasetl ImplicitZValue 0 75 Dim thePlot2 As New SimpleLinePlot pTransforml Datasetl attrib2 hePlot2 SetSegmentAttributesMode True hePlot2 SetSegmentAttributes 1 segmentAttrib S e thePlot2 SetSegmentAttributes 10 segmentAttrib thePlot2 SetSegmentAttributes 11 segmentAttrib E hePlot2 SetSegmentAttributes 12 segmentAttrib chartVu AddChartObject thePlot2 Simple Plot Objects 225
45. 147 162 165 221 222 223 224 226 227 230 233 234 238 239 243 250 251 254 257 258 261 262 270 271 274 275 278 279 287 288 291 292 297 303 306 307 323 324 331 332 334 335 344 345 434 442 464 467 476 477 478 Axis 22 23 26 50 61 149 167 168 169 170 175 176 182 183 193 194 195 196 200 206 211 330 390 Axis label classes 26 27 50 61 149 193 194 195 200 206 381 392 478 Axis titles 50 61 216 330 381 390 391 392 AxisLabels 26 27 61 149 193 194 195 200 206 381 478 AxisTitle 50 61 216 330 381 390 391 392 Background 1 20 21 61 147 148 149 157 158 160 161 162 163 165 166 267 269 270 271 306 365 367 434 442 465 467 Backgrounds 1 20 21 61 147 148 149 157 158 160 161 162 163 165 166 267 269 270 271 306 365 367 434 442 465 467 Bar plots 42 43 61 219 231 232 233 234 235 236 329 349 BarDatapointValue 61 Bubble plot legend items 48 49 61 376 Bubble plot legends 48 49 61 371 376 377 378 379 380 Bubble plots 29 32 61 247 252 253 254 376 377 378 379 BubblePlot 29 32 61 247 252 253 254 376 377 378 379 BubblePlotLegend 48 49 61 371 376 377 378 379 380 BubblePlotLegendItem 48 49 61 376 Buffered images 54 61 413 421 422 423 431 433 435 436 441 443 480 486 BufferedImage 54 61 413 421 422 423 431 433 435 43
46. 187 189 190 191 204 213 214 221 222 226 227 233 234 238 239 254 257 258 266 270 271 274 275 278 279 287 288 297 303 331 332 384 397 451 455 475 476 477 479 480 TimeGroupDataset 14 16 19 58 61 63 94 95 96 97 98 99 129 254 257 258 266 270 271 278 279 287 288 297 485 TimeGroupDataset3D 14 16 19 61 63 64 99 100 101 103 104 TimeLabel 50 61 349 351 353 354 357 359 381 392 395 396 TimeScale 17 61 105 108 TimeSimpleDataset 14 15 16 19 58 61 63 72 73 74 75 76 77 80 129 130 131 132 133 134 136 139 140 219 221 222 226 227 233 234 238 239 331 332 476 477 485 486 TimeSimpleDataset3D 14 15 16 19 61 63 64 77 78 79 80 81 219 ToolTips 52 53 61 349 350 351 352 353 354 355 356 472 User coordinates 17 18 61 105 107 UserControl 12 13 14 61 143 151 155 425 431 447 449 453 472 479 482 UserCoordinates 17 18 61 105 107 Visual Basic 6 9 65 66 68 69 70 71 72 73 74 76 77 78 79 80 81 82 83 85 86 88 89 90 91 92 93 94 95 97 98 99 100 103 110 111 112 114 115 116 118 119 120 121 122 124 125 128 129 130 132 133 134 135 136 138 139 140 141 142 143 144 145 150 151 152 153 155 156 160 162 163 168 171 172 174 175 177 178 180 181 187 188 189 191 196 197 198 199 202 203 204 205 206 207 211 212 214
47. 273 FloatingBarPlot 29 34 61 247 264 265 268 269 270 272 273 FloatingStackedBarPlot 35 272 273 Graph object class 19 20 61 108 143 149 150 151 153 154 155 156 157 163 168 169 175 182 194 195 200 206 211 212 219 225 228 231 236 241 248 252 255 259 263 264 272 275 280 285 289 293 295 298 301 304 308 313 321 324 329 330 332 337 361 371 373 374 376 382 402 405 471 481 GraphObj 19 20 61 108 143 149 150 151 153 154 155 156 157 163 168 169 175 182 194 195 200 206 211 212 219 225 228 231 236 241 248 252 255 259 263 264 272 275 280 285 289 293 295 298 301 304 308 313 321 324 329 330 332 337 361 371 373 374 376 382 402 405 471 481 Grid 49 61 149 150 211 213 214 216 217 481 482 Grids 49 61 149 150 211 213 214 216 217 481 482 Group 3D datasets 14 16 19 61 63 64 90 91 92 93 Group bar plots 29 35 61 275 276 278 280 350 Group datasets 14 16 19 58 61 63 87 88 89 90 91 92 94 99 242 249 250 251 253 255 256 260 261 262 263 265 267 269 273 276 281 282 284 286 289 291 292 293 296 299 302 305 306 307 309 477 478 485 Group plot classes 12 28 29 61 81 149 247 248 252 255 259 263 264 272 275 276 280 285 289 293 295 298 301 304 305 308 GroupBarPlot 29 35 61 275 276 278 280 350 GroupDataset 14 1
48. 3D depth of the bar When a floating bar plot is attached to a 3D dataset each bar is not restricted to a z axis plane and can traverse 3D space unrestricted The individual elements of the bar plot are normally 3D bars but you can also set the bar plots BarShapeOption property to a cylinder CYLINDER3D Group Plot Objects 265 WSJ DSP Journal EDN PC Mag euizebew Computer Week Info Age i Feb May Jun Jul Aug Sep Dec Year of 2003 WSJ DSP Journal EDN PC Mag auizebew Computer Week Info Age 7 2002 10 2002 1 2003 Year of 2002 Floating bar plots Bargraphs FloatingBars FloatingBarPlot constructor Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rbarwidth As Double _ ByVal attrib As ChartAttribute ByVal nbarjust As Integer _ C public FloatingBarPlot PhysicalCoordinates transform GroupDataset dataset double rbarwidth ChartAttribute attrib int nbarjust transform The coordinate system for the new FloatingBarPlot object dataset The floating bar plot represents the values in this group dataset The number of groups must be two The X Y 0 values of the group dataset represent the starting points of each bar the X Y 1 values of the group dataset represent the ending points of each bar rbarwidth The width of the floating bars in units of the independent axis 266 Group Plot
49. 9 0 825 Set chart rotation Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate define histogram plot ChartAttribute attribl new ChartAttribute Color Black 0 DashStyle Solid Color Green attribl SetFillFlag true HistogramPlot thePlotl new HistogramPlot pTransforml Datasetl 0 0 attribl NumericLabel bardatavalue thePlotl GetPlotLabelTemplate define data point values for histogram plot bardatavalue SetTextFont theFont bardatavalue SetNumericFormat ChartObj PERCENTFORMAT bardatavalue SetColor Color Black thePlotl SetBarDatapointLabelPosition ChartObj INSIDE BAR thePlotl SetPlotLabelTemplate bardatavalue thePlotl SetShowDatapointValue true color each histogram bar different hePlot1 SetSegmentAttributesMode true hePlot1 SetSegmentFillColor 0 Color Red hePlot1 SetSegmentFillColor 1 Color Magenta hePlot1 SetSegmentFillColor 3 Color Green hePlot1 SetSegmentFillColor 4 Color Yellow E je thePlot1 SetSegmentFillColor 2 Color Blue E t t hePlotl SetSegmentFillColor 5 Color Pink chartVu AddChartObject thePlotl1 Visual Basic Define data Dim nnumpnts As Integer 6 Dim numgroups As Integer 2 Dim xl nnumpnts 1 As Double Dim yl numgroups 1 nnumpnts 1 As Double d height width x1 0 0 284 Group Plot Objects SLL 4 20 Define dataset Dim Dat
50. A filled contor graph fills the area between two contour levels with a specific color Line and Filled Contour Plots Class ContourPlot GraphObj ChartPlot ContourPlot The ContourPlot class is a subclass of the ChartPlot class and displays a contour plot using either lines or regions filled with color The two constructors below differ only by the inclusion of the contour line flags and the contour label flags in the second constructor Contour Plotting 314 Degrees C E3 1000 um 1200 E3 1400 um 1600 1800 E3 1900 2000 2100 2200 2400 c3 2600 us 2800 3000 Contour plot ContourPlots ContourFillPlot Elevation Map Contour Level v 3000 ee ry dell 1899 Mam E SS v 2400 T 2200 IT 2100 v 2000 1900 1800 M 1600 1400 T 1200 M 1000 The contour lines can be labeled when not to close together Contour Plotting 315 Contour line plot ContourPlots ContourLinePlot ContourPlot constructors Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As ContourDataset ByVal contourlevels As Double _ ByVal attribs As ChartAttribute ByVal numcontourlevels As Integer _ ByVal contourtype As Integer Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As ContourDataset ByVal contourlevels As Double _ ByVal attribs As ChartAttribute ByVal blineflags As Boolean
51. AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 0 15 0 9 0 8 Define x and y axes Dim xAxis As New LinearAxis pTransforml ChartObj X AXIS chartVu AddChartObject xAxis The ChartView 145 Setting the Relative Depth of the ChartView The relative depth of the z dimension is set using the ChartView method SetFractionalZViewportDepth It sets the depth of the z dimension as a fraction of the ChartView width The default value of the z dimension depth is 0 3 meaning that the apparent depth of the z dimension will be 30 of the apparent width of the ChartView Making the value larger will give the 3D chart more depth smaller values mean less depth The two examples below show how changes in the value can affect the appearance of a chart SetFractionalZViewportDepth method Set the viewport depth as a fraction of the viewport width Visual Basic Public Sub SetFractionalZViewportDepth ByVal depth As Double Ct public void SetFractionalZViewportDepth double depth depth Set the viewport depth as a fraction of the viewport width 146 The ChartView Production of Green Bars is Up 100 SUOMI 50 Bars Cylinders Cones 0 s 3 5 oO e e m vs N 2001 2002 2003 2004 2005 2006 od cac Bar plots can be represented using solid bars cyliners or cones Data values can be displayed for each bar Bargraphs SimpleBars chartVu SetFraction
52. BubblePlotLegend GraphObj BubblePlotLegend The BubblePlotLegend is the primary legend class for bubble plots The class manages a list of BubblePlotLegendItem that holds the symbols and descriptive text for the symbols BubblePlotLegend constructors Visual Basic Overloads Public Sub New _ ByVal plot As BubblePlot _ ByVal rx As Double _ ByVal ry As Double _ ByVal rwidth As Double _ ByVal rheight As Double _ ByVal attrib As ChartAttribute Overloads Public Sub New _ ByVal plot As BubblePlot _ ByVal rx As Double _ ByVal ry As Double _ ByVal attrib As ChartAttribute Ct public BubblePlotLegend BubblePlot plot double rx double ry double rwidth double rheight ChartAttribute attrib public BubblePlotLegend BubblePlot plot double rx double ry ChartAttribute attrib plot rx n rwidth rheight attrib The bubble plot object the legend is associated with The x position in chart normalized coordinates of t rectangle The y position in chart normalized coordinates of t rectangle Legends 377 he legend he legend The width in chart normalized coordinates of the legend rectangle The height in chart normalized coordinates of the legend rectangle Specifies the outline color outline line style and fill color for the legend rectangle Add legend items to a legend using one of the AddLegendItem me
53. ByVal dataset As GroupDataset _ ByVal attribs As ChartAttribute C public StackedLinePlot PhysicalCoordinates transform GroupDataset dataset ChartAttribute attribs transform The coordinate system for the new SimpleLineMarkerPlot object dataset The line marker plot represents the values in this dataset symtype The symbol used in the scatter plot Use one of the scatter plot symbol constants 2D Symbols NOSYMBOL SQUARE TRIANGLE DIAMOND CROSS PLUS STAR LINE HBAR VBAR CIRCLE 3D Symbols HBAR3D VBAR3D CUBE3D PLUS3D DIAMOND3D PYRAMID3D HOURGLASS3D ARROW3D CYLINDER3D SPHERE3D Jineattrib Specifies the attributes line color and line style for the line part of the line marker plot symbolattrib Specifies the attributes line and fill color for the symbol part of the line marker plot nsymbolstart Specifies the starting index for symbols in the line marker plot nsymbolskip Specifies the skip factor for placing symbols in the line marker plot A ChartAttribute object sets the objects global line color line width and line style attributes Change the ChartAttribute object using the objects SetChartObjAttributes method Use the objects SetSymbolA ttributes to change the attributes of the marker symbol Individual line segments in a line marker plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods If this option is used the
54. CHART HEADER mainTitle SetTitlePosition ChartObj CENTER GRAPH mainTitle SetColor Color White chartVu AddChartObject mainTitle Dim theFooterFont As New Font SansSerif 10 FontStyle Bold footer New ChartTitle theFooterFont _ Graphs can have background gradients semi transparent colors legends titles and data tooltips footer SetTitleType ChartObj CHART FOOTER footer SetTitlePosition ChartObj CENTER GRAPH footer SetTitleOffset 8 footer SetColor Color White chartVu AddChartObject footer Class AxisTitle ChartText AxisTitle The AxisTitle class creates a title for an axis The text is horizontal for x axis titles and vertical for y axis titles The most common constructor is AxisTitle Constructor Visual Basic Overloads Public Sub New _ ByVal axis As Axis _ ByVal thefont As Font ByVal s As String _ C public AxisTitle Axis axis Font thefont string s ye axis The base axis this title is associated with thefont The font object used to display the axis title s Sets the title string Text Classes 391 See the special note Special mote about ChartText rotations at the beginning of this chapter ChartTitle example extracted from the example program LabeledDatapoints LabeledDatapoints C LinearAxis yAxis new LinearAxis pTransforml ChartObj Y AXIS chartVu AddChartObject yAxis NumericAxisLabels xAxisLab new NumericAxisLabels xAxis
55. CSV Dimension3D Point2D Point3D GroupPoint2D GroupPoint3D DoubleArray DoubleArray2D Class Architecture 55 This class contains utility routines used to process ChartCalendar date objects This is a utility class for reading and writing CSV Comma Separated Values files This is a utility class for handling dimension height width and depth information using doubles rather than the integers used by the Size class Derived from Point3D and is included for compatibility with programs written for QCChart2D This class encapsulates an xyx tripletts of values as doubles more useful in this software than the Net Point and PointF classes Derived from GroupPoint3D and is included for compatibility with programs written for QCChart2D This class encapsulates an x value and an array of y values representing the x and y values of one column of a group data set and a z value This class is used as an alternative to the standard Net Array class adding routines for resizing of the array and the insertion and deletion of double based data elements This class is used as an alternative to the standard Net 2D Array class adding routines for resizing of the array and the insertion and deletion of double based data elements 56 Class Architecture BoolArray NearestPointData TickMark Polysurface Rectangle2D Rectangle3D This class is used as an alternative to the standard Net Array class add
56. Chart View class and add each Chart View object to a container object such as a UserControl A layout manager manages the position and size of each ChartView Another way is to place multiple charts in the same ChartView object This makes it easier to guarantee alignment between the axes of separate graphs The trick to doing this is to create separate coordinate system objects CartesianCoordinates TimeCoordinates for each chart and to position the plot area volume of each coordinate system so that they do not overlap Use one of the coordinate systems SetGraphBorder methods Many of the examples use this technique including Bargraphs BostonClimate Bargraphs DoubleBarPlot Bargraphs FloatingBars Bargraphs GroupBargraphs FAQs 479 CalendarData OpeningScreen FinancialExamples OHLCChart FinancialExamples OpeningScreen C pTransforml new TimeCoordinates pTransforml SetGraphBorderDiagonal 0 1 15 90 0 6 pTransform2 new TimeCoordinates pTransform2 SetGraphBorderDiagonal 0 1 7 90 0 875 Visual Basic pTransforml new TimeCoordinates pTransforml SetGraphBorderDiagonal 0 1 15 90 0 6 pTransform2 new TimeCoordinates pTransform2 SetGraphBorderDiagonal 0 1 7 90 0 875 15 How do I use your software to generate GIF files Unlike the JPEG image file format the GIF file format uses a proprietary data compression algorithm known as LZW The patent on the LZW compression algo
57. Class ErrorBarPlot GraphObj ChartPlot GroupPlot ErrorBarPlot The ErrorBarPlot class extends the GroupPlot class and displays error bars Error bars are two lines positioned around a data point to signify the statistical error associated with the data point The number of groups must be two The X Y 0 values of the group dataset represent the xy position of the first error bar lines the X Y 1 values of the group dataset represent the xy position of the second error bar lines The error bar lines center on the X Connecting the error bar lines with a perpendicular line is an option When used with a 2 2 D dataset the position of the each error bar with respect to the z axis 1s set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the error bar planes When a error bar plot is attached to a 3D dataset each cell plane is not restricted to a z axis plane and can traverse 3D space unrestricted ErrorBarPlot constructor visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rbarwidth As Double _ ByVal attrib As ChartAttribute C public ErrorBarPlot PhysicalCoordinates transform GroupDataset dataset double rbarwidth ChartAttribute attrib 264 Group Plot Objects transform The coordinate system for the new ErrorBarPlot object The number of grou
58. CustomToolTip chartVu xValues stockPriceData NASDAQData stockVolumeData Stocktooltip SetDataToolTipFormat ChartObj DATA TOOLTIP CUSTOM stocktooltip SetEnable true chartVu SetCurrentMouseListener stocktooltip Visual Basic Class CustomToolTip Inherits CustomDataToolTip Private OHLCObj As OHLCChart Nothing Public Sub New ByVal component As OHLCChart MyBase New component OHLCObj component End Sub New Public Overrides Sub Draw ByVal g2 As Graphics DefineCustomerToolTipString MyBase Draw g2 End Sub Draw Public Sub DefineCustomerToolTipString Dim tooltipstring As String Dim selectedPlot As ChartPlot CType GetSelectedPlotObj ChartPlot If Not selectedPlot Is Nothing Then Dim selectedindex As Integer GetNearestPoint GetNearestPointIndex Dim transform As PhysicalCoordinates GetSelectedCoordinateSystem tooltipstring Stock Data ControlChars Lf Looking to the original arrays because we just have the selectedindex Data Tooltips 359 yet we want to display stock O H L C data volume and NASDAQ Only one of these datasets can be selected at a time by the tooltip Dim open As Double OHLCObj stockPriceData 0 selectedindex Dim high As Double OHLCObj stockPriceData 1 selectedindex Dim low As Double OHLCObj stockPriceData 2 selectedindex Dim close As Double OHLCObj stockPriceData 3 selectedindex Dim nasdaq As Double OHLCObj NASDAQData se
59. DashStyle Solid Datasetl SortByX true thePlotl new SimpleRibbonPlot pTransforml Datasetl attribl thePlotl SetLineStyle DashStyle DashDot chartVu AddChartObject thePlot1 Visual Basic Simulate data and create datasets Initialize datasets to 0 size to test AddTimeDataPoint method below Dim Datasetl As New TimeSimpleDataset Sales 0 Datasetl ImplicitZValue 0 0 Datasetl ImplicitDepthValue 0 3 Dim DatasetArray As TimeSimpleDataset Datasetl Dataset2 Dataset3 Create a coordinate system scaled for the data pTransforml New TimeCoordinates pTransforml AutoScale DatasetArray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 1 0 92 0 75 Set rotational parameters pTransforml AbsRotateCoordinateSystem New Point3D 10 15 0 Set chart 3D depth chartVu SetFractionalZViewportDepth 0 2 Define plot as a simple ribbon plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid Datasetl SortByX True thePlotl New SimpleRibbonPlot pTransforml Datasetl attribl 228 Simple Plot Objects thePlot1 SetLineStyle DashStyle DashDot chartVu AddChartObject thePlot1 Simple Pipeline Plots Class SimpleLinePlot GraphObj ChartPlot SimplePlot PipeLinePlot The PipeLinePlot class is a subclass of the SimplePlot class and and displays simple datasets in pipeline plot format T
60. Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Force x and y scales to start at 0 pTransforml SetScaleX 0 10 Transforml SetScaleY 0 10 ai Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 0 15 0 9 0 8 Set rotational parameters Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define the arrow plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid attribl SetFillColor Color Blue attribl SetFillFlag True Dim basearrow As New Arrow Dim thePlotl As New ArrowPlot pTransforml Datasetl basearrow attribl chartVu AddChartObject thePlotl Note the use of the GroupDataset method SetAutoScaleNumberGroups This forces the auto scale routine to look at only the first group of y values since those are the only 252 Group Plot Objects y values that specify the absolute position of the arrows The other groups of y values specify size and rotation information and should not be considered in the auto scale calculation Bubble Plots Class BubblePlot GraphObj ChartPlot GroupPlot BubblePlot The BubblePlot class is a subclass of the GroupPlot class It displays bubble plots A group dataset specifies the position and size of each bubble in a bubble plot The number of groups must be two When used with a 2 2 D dataset the position of the
61. Example of creating a simple time datasets C int nnumpnts 32 ChartCalendar xl new ChartCalendar nnumpnts double yl new double nnumpnts double y2 new double nnumpnts yl 0 100 y2 0 30 x1 0 ChartCalendar currentdate Clone currentdate Add ChartObj MONTH 3 for i191 i nnumpnts i xl i ChartCalendar currentdate Clone yl i ylli 1 5 i 0 75 ChartSupport GetRandomDouble y2 i y2 i 1 15 i 0 95 ChartSupport GetRandomDouble currentdate Add ChartObj MONTH 3 Use default z value and depth value TimeSimpleDataset Datasetl new TimeSimpleDataset Sales x1 yl 76 Chart Datasets double zvalue 0 1 double depthvalue 0 4 TimeSimpleDataset Dataset2 new TimeSimpleDataset Expenses x1 y2 zvalue depthvalue Visual Basic Dim nnumpnts As Integer 32 Dim xl nnumpnts 1 As ChartCalendar Dim yl nnumpnts 1 As Double Dim y2 nnumpnts 1 As Double Dim currentdate As New ChartCalendar 1998 ChartObj JANUARY 1 yio 100 y2 0 30 x1 0 currentdate Clone currentdate Add ChartObj MONTH 3 For i 1 To nnumpnts 1 xl i currentdate Clone yi i yl i 1 5 i 0 75 ChartSupport GethRandomDouble y2 i y2 i 1 15 i 0 95 ChartSupport GetRandomDouble currentdate Add ChartObj MONTH 3 Next i Use default z value and depth value Dim Datasetl As New TimeSimple
62. ImplicitDepthValue sets the 3D depth for all of the ribbons DE 50uA 10 Collector Emitter Voltage Multi ribbon plots MultiLinePlots MultiLines 1 MultiRibbonPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal attribs As ChartAttribute Ct public MultiRibbonPlot PhysicalCoordinates transform GroupDataset dataset ChartAttribute attribs 294 Group Plot Objects transform The coordinate system for the new MultiLinePlot object dataset The multi line plot represents the values in this group dataset attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset t specify the attributes line color and line style for each group of the multi line plot The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Multi ribbon plot example extracted from the example program MultiLinePlots MultiLine C Define attributes for multi line plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid ChartAttribute attribArray new ChartAttribute numGroups for i 0 i lt numGroups i attribArray i ChartAttribute attribl Clone Define a m
63. ImplicitZValue 0 5 only auto scale using the first group of the group data Datasetl SetAutoScaleNumberGroups 1 Create a coordinate sysetm that matches the data CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Force x and y scales to start at 0 pTransforml SetScaleX 0 10 pTransforml SetScaleY 0 10 Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 15 90 0 8 Set rotational parameters Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Group Plot Objects 251 Define the arrow plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid attribl SetFillColor Color Blue attribl SetFillFlag true Arrow basearrow new Arrow ArrowPlot thePlotl new ArrowPlot pTransforml Datasetl basearrow attribl chartVu AddChartObject thePlotl Visual Basic Dim Datasetl As New GroupDataset First xl yl Datasetl ImplicitZValue 0 5 only auto scale using the first group of the group data Datasetl SetAutoScaleNumberGroups 1 Create a coordinate sysetm that matches the data Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale
64. Integer _ ByVal nnumformat As Integer ByVal ndecimal As Integer _ C public NumericLabel PhysicalCoordinates transform Font tfont double initialvaluel double x double y int npostype int nnumformat int ndecimal public NumericLabel PhysicalCoordinates transform Font tfont double initialvaluel double x double y int npostype int nnumformat int ndecimal int xjust int yjust double rotation public NumericLabel PhysicalCoordinates transform Font tfont double initialvaluel double x double y Text Classes 393 394 Text Classes double z int npostype int nnumformat int ndecimal int Just int yjust double rotation public NumericLabel PhysicalCoordinates transform Font tfont double initialvaluel double x double y double z int npostype int nnumformat int ndecimal NumericLabel PhysicalCoordinates transform Font tfont double initialvalue double x double y int npostype int nnumformat int ndecimal transform Places the text in the coordinate system defined by transform font A reference to a Font object initialvalue The initial value of the numeric label x Specifies the x value of the text position y Specifies the y value of the text position Z Specifies the z value of the text position npostype Specifies the if the position of the tex
65. Integer _ ByVal xjust As Integer _ ByVal yjust As Integer _ ByVal rotation As Double Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal date As ChartCalendar ByVal x As Double _ ByVal y As Double ByVal z As Double _ ByVal npostype As Integer _ ByVal timeformat As Integer _ ByVal xjust As Integer _ ByVal yjust As Integer _ ByVal rotation As Double 396 Text Classes C public TimeLabel PhysicalCoordinates transform ChartCalendar date int timeformat I public TimeLabel PhysicalCoordinates transform Font tfont ChartCalendar date double x double y int npostype int timeformat int xjust int vxyust double rotation public TimeLabel PhysicalCoordinates transform Font tfont ChartCalendar date double x double y double z int npostype int timeformat int xjust int yjust double rotation date The calendar value used to initialize the label timeformat The format used to convert the calendar value to a text string Use one of the calendar format constants TIMEDATEFORMAT XXX StringLabel constructors visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String ByVal x As Double ByVal y As Double _ ByVal npostype As Integer _ Overloads Public Sub New _ ByVal
66. LineGapPlot 29 37 61 247 285 286 287 288 Log scale 17 61 105 108 Logarithmic auto scaling 19 61 Logarithmic axis 22 24 27 49 61 167 168 175 177 178 180 193 195 211 477 478 LogAxis 22 24 27 49 61 167 168 175 177 178 180 193 195 211 477 478 LogScale 17 61 105 108 Marker 51 52 61 241 321 322 323 324 325 327 469 470 Markers 51 52 61 241 321 322 323 324 325 327 469 470 MouseListeners 52 61 325 329 330 332 333 349 350 472 MoveData 52 53 61 329 332 333 334 335 MoveObj 52 61 329 330 332 472 Moving chart data 52 53 61 329 332 333 334 335 Moving graph objects 52 61 329 330 332 472 Multi line plots 29 61 247 289 290 292 294 295 350 MultiLinePlot 29 61 247 289 290 292 294 295 350 Multi ribbon plots 29 38 291 293 294 295 MultiRibbonPlot 29 38 291 293 294 295 Nearest point class 55 56 61 NearestPointData 55 56 61 Numeric axis labels 26 27 61 193 195 196 198 199 204 205 215 391 434 442 466 468 469 Numeric data point labels 61 Numeric labels 50 61 236 244 283 285 303 304 317 319 349 351 353 354 362 365 367 381 392 393 394 398 399 469 470 NumericAxisLabels 26 27 61 193 195 196 198 199 204 205 215 391 434 442 466 468 469 NumericLabel 50 61 236 244 283 285 303 304 317 319 349 351 353 354 362 365 367 381
67. LinearAxis Logarithmic LogAxis Date time TimeAxis The three axis types derive directly or indirectly from the Axis abstract base class that provides a core set of properties and methods All axis objects use the same set of methods found in the base GraphObj class to set the drawing properties of the lines used to draw the axis line and tick marks The default values use a black solid line of thickness 1 0 Change the default values using the GraphObj methods below SetColor method Visual Basic Overridable Public Sub SetColor _ ByVal rgbcolor As Color C public virtual void SetColor Color rgbcolor SetLineWidth method Visual Basic Overridable Public Sub SetLineWidth ByVal linewidth As Double C public virtual void SetLineWidth double linewidth ye SetLineStyle method Visual Basic Overridable Public Sub SetLineStyle _ ByVal linestyle As DashStyle _ C public virtual void SetLineStyle Axes 169 DashStyle linestyle rgbcolor Sets the primary line color for the chart object linewidth Sets the line width in device coordinates for the chart object linestyle Sets the line style for the chart object Use one of the Net Drawing2D DashStyle enumerated constants Dash DashDot DashDotDot Dot or Solid Linear Axes Class LinearAxis GraphObj Axis Linear Axis Linear Axis Minimum and Maximum The axes minimum and maximum are the physical coo
68. LinearAxis pTransforml ChartObj Z AXIS zAxis SetColor Color Black zAxis AxisIntercept xAxis AxisMax zAxis AxisIntercept2 yAxis AxisMin zAxis AxisTickSpace 0 25 zAxis AxisMinorTicksPerMajor 1 chartVu AddChartObject zAxis Define the x axis time labels Dim xAxisLab As New TimeAxisLabels xAxis xAxisLab SetAxisLabelsFormat ChartObj TIMEDATEFORMAT Y2000 xAxisLab SetColor Color Black xAxisLab TextRotation 90 chartVu AddChartObject xAxisLab Define the y axis numeric labels Dim yAxisLab As New NumericAxisLabels yAxis yAxisLab SetColor Color Black yAxisLab SetAxisLabelsFormat ChartObj CURRENCYFORMAT chartVu AddChartObject yAxisLab Define the z axis string labels Dim zlabels As String Cones Cylinders Bars Dim zAxisLab As New StringAxisLabels zAxis zAxisLab SetColor Color Black Axis Grids 215 zAxisLab SetAxisLabels theFont 0 ChartObj AXIS_MIN ChartObj LABEL ALL Color Black zlabels 4 chartVu AddChartObject zAxisLab 216 Axis Grids Define the y axis title Dim yaxistitle As New AxisTitle yAxis theFont Millions yaxistitle SetColor Color Black chartVu AddChartObject yaxistitle Define the z axis title Dim zaxistitle As New AxisTitle zAxis theFont Category zaxistitle SetColor Color Black chartVu AddChartObject zaxistitle Define the x axis grid for the XY MAXZ PLANE Dim xgrid As New Grid xAxis yAxis ChartObj X AXIS ChartO
69. MONTH TIMEAXIS MONTHWEEK TIMEAXIS MONTHDAY Description 50 year major tick mark spacing 10 year minor tick mark spacing 20 year major tick mark spacing 5 year minor tick mark spacing 10 year major tick mark spacing 1 year minor tick mark spacing 5 year major tick mark spacing year minor tick mark spacing 1 year major tick mark spacing 1 year major tick mark spacing 1 quarter minor tick mark spacing 1 year major tick mark spacing 1 month minor tick mark spacing 1 quarter major tick mark spacing 1 quarter major tick mark spacing 1 month minor tick mark spacing 1 month major tick mark spacing 1 month major tick mark spacing 1 week minor tick mark spacing 1 month major tick mark spacing 1 day minor tick mark spacing 184 Axes TIMEAXIS WEEK TIMEAXIS WEEKDAY TIMEAXIS DAY TIMEAXIS DAY12HOUR TIMEAXIS DAYSHOUR TIMEAXIS DAYA4HOUR TIMEAXIS DAY2HOUR TIMEAXIS DAYHOUR TIMEAXIS 12HOURHOUR TIMEAXIS SHOURHOUR TIMEAXIS 4HOURHOUR TIMEAXIS 2HOURHOUR TIMEAXIS HOUR TIMEAXIS HOUR30MINUTE TIMEAXIS HOURISMINUTE TIMEAXIS HOURIOMINUTE TIMEAXIS HOURSMINUTE 1 week major tick mark spacing 1 week major tick mark spacing 1 day minor tick mark spacing 1 day major tick mark spacing 1 day major tick mark spacing 12 hour minor tick mark spacing 1 day major tick mark spacing 8 hour minor tick mark spacing 1 day major tick mark spacing 4 hour minor tick mark spacing
70. SimpleDataset Second x2 y2 y2 zvalue depthvalue C double xl 10 20 30 40 50 double yl 9 21 20 40 30 double zvalue 0 5 double depthvalue 0 4 SimpleDataset Datasetl new SimpleDataset First xl yl zvalue depthvalue int n2 9 double x2 new double n2 dimension is size not upper limit double y2 new double n2 dimension is size not upper limit x2 0 5 x2 1 7 lls fs x2 n2 1 100 68 Chart Datasets y2 0 15 y2 1 25 bis ffs y2 n2 1 100 zvalue 0 0 SimpleDataset Dataset2 new SimpleDataset Second x2 y2 zvalue depthvalue Example of reading and writing a simple dataset from a CSV file C CSV csvdata new CSV SimpleDataset Datasetl new SimpleDataset csvdata SimpleDataset csv 0 0 Write out dataset as a CSV file under a different file name Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 Datasetl WriteSimpleDataset csvdata SimpleDataset2 csv Visual Basic Dim csvdata As CSV New CSV Dim Datasetl As SimpleDataset New SimpleDataset csvdata SimpleDataset csv 0 0 Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 Write out dataset as a CSV file under a different file name Datasetl WriteSimpleDataset csvdata SimpleDataset2 csv Example of modifying simple dataset elements using the indexed accessor property C Define a
71. Specifies the name of the dataset x An array that specifies the x values of a dataset y An array that specifies the y values of a dataset The length of the y array must match the length of the x array zvalue Sets the ImplicitZValue for the dataset The default value is 0 0 depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of data points is the value of x Length property The x and y arrays must be the same length and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped The next constructor creates a dataset using the x and y values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column 66 Chart Datasets represents the x values and the second column the y values If you use the ROW MAJOR format the first row represents the x values and the second row the y values Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ C public SimpleDataset Coy csv string filename int rowskip int columnskip CSV An instance of a CSV object
72. a string object ntitletype The title can be a header subhead or footer Use one of the title type constants CHART HEADER CHART SUBHEAD or CHART FOOTER ntitlepos The title can be centered with respect to the entire graph area volume or the plot area volume Use one of the title position constants CENTER GRAPH or CENTER PLOT See the special note Special mote about ChartText rotations at the beginning of this chapter ChartTitle example extracted from the example program SimpleLinePlots LineFill C Chart title Font theTitleFont new Font Microsoft Sans Serif 16 FontStyle Bold mainTitle new ChartTitle theTitleFont Profits are Expected to Rise mainTitle SetTitleType ChartObj CHART HEADER mainTitle SetTitlePosition ChartObj CENTER GRAPH mainTitle SetColor Color White chartVu AddChartObject mainTitle Chart footer Font theFooterFont new Font Microsoft Sans Serif 9 FontStyle Bold footer new ChartTitle theFooterFont Ribbon plots can be filled or unfilled Each plot segment can be assigned a unique color footer SetTitleType ChartObj CHART FOOTER footer SetTitlePosition ChartObj CENTER GRAPH footer SetColor Color Black chartVu AddChartObject footer Visual Basic Dim theTitleFont As New Font SansSerif 16 FontStyle Bold 390 Text Classes mainTitle New ChartTitle theTitleFont _ Profits are Expected to Rise mainTitle SetTitleType ChartObj
73. an initial value of 1 0 Unlike the NO RESIZE OBJECTS mode the value can be changed The programmer must explicitly set the resizeMultiplier for any objects requiring a size change using the GraphObj SetResizeMultiplier method The Chart View 155 ChartView View Modes A ChartView window can interact with a parent container creating a couple of interesting view modes The first is to place the ChartView object in a Windows Form Size the ChartView window larger than the Form window size and the Form frame acts as a porthole through which the ChartView window is viewed Resizing the Form frame has no effect on the size of ChartView object within If the Form frame is smaller than the size of the ChartView window then the lower right portion of the ChartView window is not visible If the Form frame is larger than the ChartView window the lower right portion of the window just shows empty space Another interesting technique is to place a fixed size ChartView object in a Windows Form that has the AutoScroll property set to true The size of the ChartView window can much larger than the Form window size Place the chart in a form that has the AutoScroll property set to true The auto scroll feature of the Form displays scroll bars when the chart object is larger than the containing form The scroll bars permit the user to pan left right up and down to view the portion of the ChartView window that is outside of the clipping limits of the For
74. and Coordinate Systems 117 translate Translate the coordinate system by this amount using normalized 0 0 to 1 0 coordinates Linear and Logarithmic Coordinate Scaling Class CartesianCoordinates PhysicalCoordinates CartesianCoordinates The CartesianCoordinates class scales the chart plot area volume for a physical coordinate system that uses linear and or logarithmic scaling There are three main ways to scale the plot area volume e Scale the minimum and maximum x and y values explicitly e Use an auto scale method that calculates appropriate minimum and maximum x and y values based on the x and y values in one or more datasets e Use a combination of the first two methods It is useful to be able to run an auto scale function and then change the minimum or maximum value of one or more coordinate endpoints Linear Coordinate Scaling The default coordinate system for the CartesianCoordinates class is linear for x y and z If you already know the range for x y and z for the plot area volume you can scale the plot area volume explicitly The example below uses a CartesianCoordinates constructor to initialize the coordinates to the proper values CartesianCoordinates constructor with explicit scaling using the default 0 0 to 1 0 z dimenstion scale C double xMin 5 double xMax 15 double yMin 0 double yMax 105 CartesianCoordinates simpleScale simpleScale new CartesianCoordinates xMin yM
75. arrows in the ArrowPlot class and it can also place individual arrows in a chart The class creates a base arrow with a custom arrowhead and shaft size Scale rotate and position the arrow in a chart The arrow is defined using device coordinates Arrow constructor Visual Basic Overloads Public Sub New ByVal arrowshafthalfwidth As Double _ ByVal arrayshaftlength As Double _ ByVal arrowheadhalfwidth As Double _ ByVal arrowheadlength As Double _ C public Arrow double arrowshafthalfwidth double arrayshaftlength Lines Shapes Images and Arrows 409 double arrowheadhalfwidth double arrowheadlength arrowshafthalfwidth Sets the half width of the arrow shaft default 1 arrayshaftlength Sets the length of the arrow shaft default 7 arrowheadhalfwidth Sets the half width of the arrow head default 2 arrowheadlength Sets the length of the arrow head default 3 The default arrow has a length of about 10 pixels and a width of 4 pixels at the head The size of the various parts can be set to whatever values you want to create an arrow of with an aspect ratio appropriate to your application You can scale the arrow by setting the ArrowScaleFactor property Get a GraphicsPath object defining the arrow shape by calling the GetArrowShape method Arrow example extracted from the example program MultiLinePlots MultiLines C Create an arrow shapped object and position it in 3D space Arrow regionArrow
76. as the number of groups in the dataset specify the attributes outline color and fill color for each group of a group bar graph nbarjust The group bars are justified with respect to the x values in the dataset using the rbarjust justification value JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Group bar plot example extracted from the example program Bargraphs GroupBargraphs C Define data values int nNumPnts 5 nNumGroups 4 ChartCalendar xValues new ChartCalendar nNumPnts double groupBarData new double nNumGroups nNumPnts theFont new Font Microsoft Sans Serif 10 FontStyle Bold xValues 0 new ChartCalendar 1998 ChartObj JANUARY 1 groupBarData 0 0 6 3 groupBarData 1 0 3 1 groupBarData 2 0 2 2 groupBarData 3 0 1 8 xValues 1 new ChartCalendar 1999 ChartObj JANUARY 1 groupBarData 0 1 5 8 groupBarData 1 1 4 3 groupBarData 2 1 2 8 groupBarData 3 1 1 5 278 Group Plot Objects define dataset TimeGroupDataset Datasetl new TimeGroupDataset GroupTimeData xValues groupBarData Datasetl ImplicitDepthValue 1 0 DEFINE FIRST GRAPH AS A GROUP BAR GRAPH define coordinate system of
77. at a time by the tooltip double open OHLCObj stockPriceData 0 selectedindex double high OHLCObj stockPriceData 1 selectedindex double low OHLCObj stockPriceData 2 selectedindex double close OHLCObj stockPriceData 3 selectedindex double nasdaq OHLCObj NASDAQData selectedindex double volume OHLCObj stockVolumeData selectedindex String openObj ChartSupport NumToString open ChartObj DEC String highObj MALFORMAT 2 NY r ChartSupport NumToString high ChartObj DECIMALFORMAT 2 String lowObj ChartSupport NumToString low ChartObj DECIMALFORMAT 2 String closeObj ChartSupport NumToString close ChartObj DECIMALFORMAT 2 String volumeobj ChartSupport NumToString volume ChartObj DECIMALFORMAT 0 ni String nasdaqObj ChartSupport NumToString nasdaq ChartObj DECIMALFORMAT 2 TimeLabel timelabel new TimeLabel transform OHLCObj xValues selectedindex ChartObj TIMEDATEFORMAT STANDARD tooltipstring timelabel GetTextString n tooltipstring Open openObj n tooltipstring High highObj n tooltipstring Low lowObj Tyn tooltipstring Close closeObj n tooltipstring Volume volumeObj n tooltipstring NASDAQ nasdaqObj 358 Data Tooltips Assign as the tooltip string this CustomToolTipString tooltipstring CustomToolTip stocktooltip new
78. auto scale method C double xData 2 3 4 5 6 7 8 9 double yData 22 33 44 55 46 33 25 14 double zvalue 0 5 double depthvalue 0 1 SimpleDataset dataset new SimpleDataset Sales xData yData zvalue depthvalue CartesianCoordinates simpleScale new CartesianCoordinates simpleScale AutoScale dataset simpleScale SetScaleStopX 10 simpleScale SetScaleStartX 1 0 Visual Basic Dim xData As Double 1 2 3 4 5 0 7 8 9 10 Dim yData As Double 10 22 33 44 55 46 33 25 14 9 Dim zvalue As Double 0 5 Dim depthvalue As Double 0 1 Dim dataset As SimpleDataset _ New SimpleDataset Sales xData yData zvalue depthvalue Dim simpleScale As CartesianCoordinates new CartesianCoordinates simpleScale AutoScale dataset simpleScale SetScaleStartX 1 0 simpleScale SetScaleStopX 10 0 122 Scaling and Coordinate Systems The auto scale methods that use an array of datasets to determine the proper range are very similar Example of auto scaling a CartesianCoordinates object using the multiple datasets C doubl doubl doubl doubl doubl doubl doubl doubl Simpl doubl Simpl doubl Simpl Simpl e xDatal 1 2 3 4 5 6 7 8 9 10 e yDatal 110 22 33 44 55 416 33 25 14 OF e Data2 10 9 8 7 5 5 4 3 2 1 e yData2 20 12 43 54 15 26 63 25 24 19 e xData3 5 6 7 6 5 4 5 6 7 8 e yo
79. black outline with color fill For i 0 To numPoints 1 attribs i New ChartAttribute Color Black 1 DashStyle Solid colorArray i Next i Define pie chart dataset Dim Datasetl As New SimpleDataset First xl yl Datasetl ImplicitDepthValue 0 2 Datasetl ImplicitZValue 0 4 Create a default cartesian coordinate system Dim pTransforml As New CartesianCoordinates Position the pie inside the graph area pTransforml SetGraphBorderDiagonal 0 1 0 1 0 9 0 9 Set rotational parameters Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Pie Charts 367 Define background Dim backgroundl As New Background pTransforml ChartObj GRAPH BACKGROUND Color FromArgb 0 120 70 _ Color FromArgb 0 40 30 ChartObj Y AXIS chartVu AddChartObject backgroundl Define the pie chart Dim thePlotl As New PieChart pTransforml Datasetl sPieStrings attribs ChartObj PIELABEL OUTSLICE ChartObj PIELABEL STRINGNUMVAL thePlot1 SetStartPieSliceAngle 45 Define the numeric template for the pie chart segment values Dim labeltemplate As New NumericLabel labeltemplate SetNumericFormat ChartObj CURRENCYFORMAT labeltemplate SetDecimalPos 1 labeltemplate SetTextFont theFont hePlotl SetPlotLabelTemplate labeltemplate hePlotl SetLabelInOut 0 hartObj PIELABEL INSLICE hartObj PIELABEL INSLICE hePlotl SetLabelInOut 2 g C ChartObj PIELABEL INSLICE hePlotl SetL
80. candlestick box When a candlestick plot is attached to a 3D dataset each candlestick symbol is not restricted to a z axis plane and can traverse 3D space unrestricted 256 Group Plot Objects 12 01 06 1 01 07 2 01 07 3 01 07 Candlestick plot FinancialExamples CandlestickChart CandlestickPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rwidth As Double _ ByVal defaultattrib As ChartAttribute ByVal fillattrib As ChartAttribute C public CandlestickPlot PhysicalCoordinates transform GroupDataset dataset double rwidth ChartAttribute defaultattrib ChartAttribute fillattrib transform The coordinate system for the new CandlestickPlot object dataset The CandlestickPlot plot represents the group open high low close values in this group dataset The number of groups must be four Orgainize the data in the following manner The x values of the group dataset set the x positions of the candlestick objects The Y 0 values of the group dataset represent the values for Open the Y 1 values for High the Y 2 values for Low and the Y 3 values for Close Group Plot Objects 257 rwidth The width of the candlestick box in physical coordinates defaultattrib Specifies the default attributes line color and fill color of the candlestick lines and box fillattrib Specifies the attributes line color and f
81. catch System ArgumentException filename Images ChartClouds jpg almage null if almage null try almage new Bitmap filename catch System ArgumentException almage null If image file loaded create a ChartImage object and add it to the chart sized for the full graph area if almage null don t reference the transform so it does not get rotated ChartImage chartImage new ChartImage almage 0 0 ChartObj NORM GRAPH POS 0 chartImage SetSizeMode ChartObj COORD SIZE chartImage SetImageSize new Dimension3D 1 1 chartVu AddChartObject chartImage Visual Basic Dim filename As String Images ChartClouds jpg Dim almage As Bitmap Try 408 Lines Shapes Images and Arrows aImage New Bitmap filename Catch err As System ArgumentException filename Images ChartClouds jpg almage Nothing End Try If almage Is Nothing Then Try almage New Bitmap filename Catch err As System ArgumentException almage Nothing End Try End If If Not aImage Is Nothing Then Dim chartImage As New ChartImage pTransforml almage 0 0 _ ChartObj NORM GRAPH POS 0 chartImage SetSizeMode ChartObj COORD SIZE chartImage SetImageSize New Dimension3D 1 1 chartVu AddChartObject chartImage End If Generic Arrow Class Class Arrow ChartObj Arrow The Arrow defines an arrow shape useable with the ChartShape class The Arrow class creates the
82. cs behind code 440 Using QCChart3D for Net to Create Web Applications as opposed to doing it on an HTML page The drawback is that the entire page is redrawn when anything is posted causing a momentary flash when the chart is redraw Using the HTML approach the chart is redrawn without the flash making it a better method for real time applications Visual Basic for Net If you do not already have an application program project create one using the Visual Studio project wizard File New Project Visual Basic Projects ASP Net Application On the left select a project type of Visual C Projects Give the project a unique name our version of this example is VBChart3DWebApplication1 You will end with a basic WebForm based application with one System Web UI Page derived form WebForml aspx by default For purposes of this example the chart will placed in the initial default form Assume that you want to make an ASP Net application that streams an image file to an image component in a web page You do not need to add anything to the WebForml aspx page Right click on the page and select View Code This brings up the code behind file WebForm1 aspx cs for the WebForml aspx page Add the following references in the using section at the top of the WebForml aspx cs file Imports com quinncurtis chart3dnet Imports System Drawing Imports System Drawing Drawing2D Imports System Drawing Imaging e Right click on Reference in the So
83. event driven model A user can use the mouse to select data points text annotations axes image objects and other shapes and position them in the graph Create data markers and move them around the chart under mouse or program control Automatically rescale one or more chart axes using mouse controlled zooming QCChart3D for Net Class Summary The following categories of classes realize these design considerations Chart view class Data classes Scale transform classes The chart view class is a UserControl subclass that manages the graph objects placed in the graph There are data classes for simple xy xyz and group data types There are also data classes that handle System DateTime date time data The scale transform classes handle the conversion of physical coordinate values to working coordinate values for a single dimension Coordinate transform classes The coordinate transform classes handle the conversion Attribute class Auto Scale classes Charting object classes Mouse interaction classes of physical coordinate values to working coordinate values for a parametric 2D coordinate system The attribute class encapsulates the most common attributes line color fill color line style line thickness etc for a chart object The coordinate transform classes use the auto scale classes to establish the minimum and maximum values used to scale a 3D coordinate system The axis classes also use the auto scal
84. executable One exception is if you expect a QCChart3D derived UserControl to run in Internet Explorer In that case the QCChart3DNet DLL must be installed as part of the GAC so that it has the necessary security clearance and so that IE can find it when it has to display the control If you have installed it correctly you should be able to view the web page below that references a QCChart3D derived user control http quinn curtis com UserControlTest IEQCChart3D htm Once the QCChart3DNet DLL has been successfully installed in the system GAC you must create a ChartView derived UserControl that creates the chart you want to display in the browser This can be done using either C or VB And you must create a HTML page that displays the chart and provides whatever interaction you expect 448 Using QCChart3D for Net to Create Web Applications a Embed a QCChart3D User Control In Internet Explorer Microsoft Internet Explorer E nmi xi File Edit View Favorites Tools Help au Q sax M Y sl E A yo Search f Favorites 4 Se K n e IM 2 Address Lei http quinn curtis com UserControlTest IEQCChart3D htm DI Go Links 7 Y e Search web 2 Br 9 Bookmarks Qu My Yahoo Hello this page includes a windows user control Production of Green Bars is Up 103 99 96 3 Ed e Cones cae Embed a QCChart3D User Control into Internet Explorer Change Title Ch
85. fileext JPEG Then fileimageformat ImageFormat Jpeg Else If fileext GIF Then fileimageformat ImageFormat Gif Else If fileext TIF Or fileext TIFF Then fileimageformat ImageFormat Tiff Else If fileext PNG Then fileimageformat ImageFormat Png Else fileimageformat ImageFormat Bmp End If End If End If End If End If Dim savegraph As New BufferedImage chartview fileimageformat 424 File and Printer Rendering savegraph Render savegraph Savelmage filename End If End Sub SaveAsFile 23 Using QCChart3D for Net to Create Windows Applications Critical Note Running the Example Programs The example programs for QCChart3D charting software are supplied in complete source In order to save space they have not been pre compiled which means that many of the intermediate object files needed to view the main form are not present This means that ChartView derived control will not be visible on the main Form if you attempt to view the main form before the project has been compiled The default state for all of the example projects should be the Start Page Before you do view any other file or form do a build of the project This will cause the intermediate files to be built If you attempt to view the main Form before building the project Visual Studio decides that the ChartView control placed on the main form does not exist and deletes it from the project The primary view class of the Q
86. filled or unfilled Each plot segment can be assigned a unique color Filled ribbon plot SimpleLinePlots LineFill SimpleRibbonPlot This class is a subclass of the SimplePlot class it displays simple datasets in a line plot format Adjacent data points are connected using a straight or a step line The SimpleRibbonPlot class is a 27 D chart where the z value of the plot is fixed using the associated datasets ImplicitZV alue property The depth of the ribbon is set using the associated datasets ImplicitDepthValue property 46 Class Architecture a EI jndino HOM aiqeinsea KI e 20 SimpleLinePlot lll Energy Companies Theoretical vs Experimental Data 5 10 15 20 A Lawyers 1000 employees S Bei 95 o Software Companies Predicted Line plots and Scatter plots can be used to display 2D and 3D data 3D line plots SimpleLinePlots LinePlot3D This class is a subclass of the SimplePlot class it displays simple datasets in a line plot format Adjacent data points are connected using a straight or a step line The class will work with 22 D data using a constant z value set using the associated datasets ImplicitZValue property or 3D data where each data point is represented using individual x y and z datapoints Class Architecture 47 Mental Powers Peak in Late Afternoon 5 0x10 4 0x10 3 0x10 2 0x108 puooeg Du suoJenN 1x10 0 0x10 0 00 1 00 2 00 3 00 4 00 11
87. filter the desired class objects The string ChartPlot would cause the routine to return only objects derived from the ChartPlot class nthhit Specifies to return the n object that intersects the test point A value of 0 signifies that the first object found is returned a value of 1 specifies that the second item found is returned and so on The function returns a reference to the found object or null if unsuccessful 6 Backgrounds Walls Borders and Bitmaps There are four ways to add backgrounds elements to your charts The first is to use the Background class to add a color or color gradient to the entire ChartView viewport of the chart The second is to use the Background class to provide background planes for the plot area volume of a specific coordinate system The third is to use one or more Wall3D objects to provide 3 dimensional walls as the background for the plot area volume of a coordinate system The last is to place a bitmap as a background for a chart Background There are two types of background elements that can serve as a backdrop for the other graphical objects of a chart The first is simple 2D rectangle formed by the ChartView viewport also called the graph area This rectangle is the entire area of the ChartView window and all elements of the chart axes labels plots titles walls etc are within its bounds The second area is the plot area volume The plot area volume is the 3D prism within the ChartView vie
88. first chart pTransforml new TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR force x axis time scale to a specific range pTransforml SetTimeScaleStart new ChartCalendar 1997 ChartObj JANUARY 1 pTransforml SetTimeScaleStop new ChartCalendar 2003 ChartObj JANUARY 1 force starting position of y scale to 0 pTransforml SetScaleStartY 0 define position of chart in graph area pTransforml SetGraphBorderDiagonal 0 1 15 9 0 45 define chart rotation Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 define color attributes the group plot hartAttribute attribl new ChartAttribute Color Red 1 DashStyle Solid olor Red hartAttribute attrib2 new ChartAttribute Color Yellow 1 DashStyle Solid olor Yellow olor Blue hartAttribute attrib4 new ChartAttribute Color Green 1 DashStyle Solid olor Green E c 9 C ChartAttribute attrib3 new ChartAttribute Color Blue 1 DashStyle Solid e 6 E ChartAttribute attribArray attribl attrib2 attrib3 attrib4 create a group bar plot GroupBarPlot thePlotl new GroupBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj YEAR 0 75 0 0 attribArray ChartObj JUSTIFY CENTER thePlotl SetBarOverlap 0 0 chartVu AddChartObject thePlot1 Group Plot Object
89. for all drawable graph objects It contains information common to all chart objects This class includes references to instances of the ChartAttribute and PhysicalCoordinates classes The ChartAttribute class contains basic color and line style information for the object while the PhysicalCoordinates maintains the coordinate system used by object The majority of classes in the library derive from the GraphObj class each class a specific charting object such as an axis an axis label a simple plot or a group plot Background This class fills the background of the entire chart using a solid color a color gradient or a texture It can also be used to fill the plot area the area bounded by the charts 3D coordinate system using simple wall like planes of a solid color Class Architecture 21 Boston s Recent Climate Temperature and Precipitation 60 3 40 2 o gt 20 S 0 11 02 03 11 09 03 11 16 03 11 23 03 11 30 03 ll Record High Low M Normal High Low NM Todays High Low 0 8 3 0 6 S 04 oO 02 0 0 11 02 03 11 09 03 11 16 03 11 23 03 11 30 03 Chart format courtesy of the Boston Globe Climatic data for the month of November is simulated This example combines a graph area background that uses a gradient LightGray to White with two different plot area background objects LightBlue Bargraphs BostonClimate Wall3D This class defines walls that can be be used a background elements of a 3D plot Unl
90. for data pTransforml new TimeCoordinates pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR chartVu SetFractionalZViewportDepth 0 6 pTransforml SetGraphBorderDiagonal 0 15 0 2 8 0 7 set the rotational characteristics of the chart pTransforml AbsRotateCoordinateSystem new Point3D 10 20 0 116 Scaling and Coordinate Systems RelRotateCoordinateSystem Incrementally rotate the state of the coordinate system Visual Basic Overloads Public Sub RelRotateCoordinateSystem _ ByVal rotate As Point3D _ C public void RelRotateCoordinateSystem Point3D rotate Parameters rotate Rotate the coordinate system by this amount in relative degrees RelRotateCoordinateSystem Incrementally rotate one axis of the coordinate system Visual Basic Overloads Public Sub RelRotateCoordinateSystem _ ByVal degree As Double _ ByVal iAxis As Integer _ Ct public void RelRotateCoordinateSystem double degree int iAxis Parameters degree Rotate the coordinate system by this amount in relative degrees iAxis Rotate about this axis X AXIS Y AXIS or Z AXIS AbsTranslateCoordinateSystem Set the absolute tranlational state of the coordinate system Visual Basic Public Sub AbsTranslateCoordinateSystem _ ByVal translate As Point3D _ C4 public void AbsTranslateCoordinateSystem Point3D translate Parameters Scaling
91. gt QCChart3D Point2D Point3D Dimension Dimension3D Rectangle2D Rectangle3D 3 Since QCChart2D data would originally be stored in one of the dataset classes SimpleDataset TimeSimpleDataset GroupDataset TimeGroupDataset they would not contain explicit z dimension information The QCChart3D versions of these classes include two important properties that you use to define the z dimension position and depth of 3D objects like bars ribbons and scatter plot symbols These would be the ChartDataset ImplicitZV alue and ChartDataset ImplicitDepth Value properties TimeGroupDataset Datasetl new TimeGroupDataset Stock Data xValues stockPriceData Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 4 The default rotational state of any newly created coordinate system CartesianCoordinates or TimeCoordinates is un rotated 0 degrees about all three axes Give the coordinate system an intial rotational state using the coordinate systems AbsRotateCoordinateSystem method The example below rotates the chart 10 degrees about the x axis and 20 degrees about the y axis pTransforml new TimeCoordinates Class Architecture 59 Set rotational parameters Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate 5 The relative depth of the z dimension is set using the ChartView method SetFractionalZViewportDepth It sets the depth of the z dimension as a fraction of the ChartView
92. labeltemplate SetDecimalPos 1 labeltemplate SetTextFont theFont hePlotl SetPlotLabelTemplate labeltemplate hePlotl SetLabelInOut 0 ChartObj PIELABEL INSLICE hePlotl SetLabelInOut 2 ChartObj PIELABEL INSLICE hePlotl SetLabelInOut 3 ChartObj PIELABEL INSLICE E E thePlotl SetLabelInOut 1 ChartObj PIELABEL INSLICE t t t hePlotl SetLabelInOut 4 ChartObj PIELABEL INSLICE chartVu AddChartObject thePlot1 Visual Basic Dim chartVu As ChartView Dim theFont As Font theFont New Font Microsoft Sans Serif 10 FontStyle Bold Dim labelArray As String chartVu Me Define the pie segment labels Dim numPoints As Integer 5 Dim sPieStrings As String Technology Retail Banking Automotive Aerospace Dim attribs 5 As ChartAttribute Dim colorArray As Color Color Red Color Blue Color Cyan Color Yellow Color Green Dim techLabel As String 366 Pie Charts Dim retailLabel As String Dim bankLabel As String Dim aeroLabel As String Dim autoLabel As String create pie chart data Dim xl numPoints 1 As Double Dim yl numPoints 1 As Double Dim i As Integer x values represent pie chart segment value y values represent the explode value for cooresponding segment x1 0 5 8 y1 0 0 2 xl 1 2 2 yl 1 0 0 xl 2 3 5 y1 2 0 0 x1 3 4 2 y1 3 0 0 x1 4 3 7 yli4 0 0 Define atttribute for each pie segment
93. line and fill properties of the lines and the marker symbols will be the same Simple Plot Objects 243 Simple line marker plot example extracted from the example program ScatterPlots LabeledDatapoints C Create a 3D dataset SimpleDataset3D Datasetl new SimpleDataset3D First x1 yl z1 Create a coordinate system to match data CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 15 90 0 8 Set rotate parameters Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a simple line marker plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid ChartAttribute attrib2 new ChartAttribute Color Red 1 DashStyle Solid attrib2 SetFillColor Color RBed attrib2 SetFillFlag true attrib2 SetSymbolSize 15 SimpleLineMarkerPlot thePlotl new SimpleLineMarkerPlot pTransforml Datasetl ChartObj CUBE3D attribl attrib2 0 1 chartVu AddChartObject thePlotl Visual Basic Create a 3D dataset Dim Datasetl As New SimpleDataset3D First xl yl z1 Create a coordinate system to match data Dim pTransforml As New CartesianCoordinates ChartObj LINE
94. linear for the z scale The y and z scales can be logarithmic and you can set that mode using the explicit scale mode version of the TimeCoordinates constructor If you already know the range for x y and z for the plot area volume you can scale the plot area volume explicitly In the example below a TimeCoordinates constructor initializes the coordinates to the proper values TimeCoordinates constructor with explicit scaling C ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 double yMin 0 double yMax 105 double zMin 0 double zMax 10 TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMin yMin zMin xMax yMax zMax Visual Basic Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY 5 Dim yMin As Double 0 Dim yMax As Double 105 Dim zMin As Double 0 Dim zMax As Double 10 Dim simpleTimeScale As TimeCoordinates Scaling and Coordinate Systems 129 simpleTimeScale new TimeCoordinates xMin yMin zMin xMax yMax zMax Another technique uses the default constructor and scales the coordinates using the TimeCoordinates SetTimeCoordinateBounds method Example of explicit scaling of a TimeCoordinates object using the TimeCoordinates SetTimeCoordinateBounds method C ChartCalendar xMin
95. lt OBJECT id MyTestUserControll height 496 width 646 classid http quinn curtis com UserControlTest WindowsControlLibraryl d11 WindowsControlLibraryl UserC ontroll VIEWASTEXT gt lt OBJECT gt Notice the classid in the lt object gt tag The classid has two parts to it First we have the URL to the DLL file make sure the DLL is not in the web sites bin directory In this example the WindowsControlLibrary1 DLL file has been explicity copied to the http quinn curtis com web site and placed in the folder UserControlTest Hence the URL to the library is http quinn curtis com UserControlTest WindowsControlLibraryl dll It is then followed by a sign and ends with the fully qualified name of the control namespace control name In this case that is WindowsControlLibraryl UserControll 458 Using QCChart3D for Net to Create Web Applications The full classid becomes classid http quinn curtis com UserControlTest WindowsControlLibraryl dll WindowsControlLibraryl Userc ontroli This is sufficient to display the QCChart3D derived user control in a web page using Internet Explorer If you want to modify elements of the chart you will need to communicate to the control from JavaScript embedded in the HTML page In our IEQCChart3D htm example we added a couple of text fields one that changes the chart title text and another that changes the y axis range of the chart text2 A couple of buttons force the
96. manages a simple 3D viewport drawing system and manages the transformation of 3D user coordinates into the 2D device coordinate system of the Net System Drawing classes World Coordinates The WorldCoordinates class maps a linear double based coordinate system onto the integer based user coordinate system of the UserCoordinates class Where the underlying user coordinate system may have an integer range for example 0 400 0 300 0 100 units the world coordinate system is able to map this to a completely arbitrary double based linear range for example 0 0 to 10 0 0 0 to 10 0 0 0 to 1 0 The world coordinate system applies to the entire graph window and not just the plot area volume Working Coordinates The WorkingCoordinates class manages a working coordinate system that maps the physical coordinate system of the plot area volume into a linear world coordinate system applied to the whole viewport For example if the desired chart plot area volume uses a physical coordinate system of 0 0 0 0 0 0 100 0 100 0 1 0 and the plot area volume is centered in the graph area volume with the plot area volume the width and height of the graph area volume then the coordinate system 50 50 0 5 150 150 1 5 is calculated and used to scale the graph area volume The WorkingCoordinates class uses the underlying WorldCoordinates class to scale the viewport to the final world coordinates scale Physical Coordinates The PhysicalC
97. need to add hScrollBarl Scroll and vScrollBarl Scroll event listeners to the ChartView class to process changes in scroll bar values C public void UpdateXScaleAndAxes int index int startindex index pTransforml SetScaleStartX double startindex 482 FAQs pTransforml SetScaleStopX double startindex 100 xAxis CalcAutoAxis yAxis CalcAutoAxis xAxisLab CalcAutoAxisLabels yAxisLab CalcAutoAxisLabels this UpdateDraw public void UpdateYScaleAndAxes int index int startindex index pTransforml SetScaleStartY double startindex pTransforml SetScaleStopY double startindex xAxis CalcAutoAxis yAxis CalcAutoAxis xAxisLab CalcAutoAxisLabels yAxisLab CalcAutoAxisLabels this UpdateDraw private void hScrollBarl_Scroll object sender System Windows Forms ScrollEventArgs e UpdateXScaleAndAxes hScrollBarl Value private void vScrollBarl Scroll object sender System Windows Forms ScrollEventArgs e UpdateYScaleAndAxes vScrollBarl Value Visual Basic Public Sub UpdateXScaleAndAxes ByVal index As Integer Dim startindex As Integer index pTransforml SetScaleStartX CDbl startindex pTransforml SetScaleStopX CDbl startindex 100 xAxis CalcAutoAxis yAxis CalcAutoAxis xAxisLab CalcAutoAxisLabels yAxisLab CalcAutoAxisLabels FAQs 483 Me UpdateDraw End Sub UpdateXScaleAndAxes Public Sub UpdateYScaleAndAxes ByVal
98. need to call the ChartView UpdateDraw method to redraw the chart without that object Placing Multiple Charts in a ChartView One way to create multiple charts is to create multiple instances of the ChartView class and add each ChartView object to a Net container object such as a UserControl A Net 152 The Chart View layout manager manages the position and size of each ChartView The WebSiteStats example program demonstrates simple placement of four ChartView objects on a form Another way is to place multiple charts in the same ChartView object This makes it easier to guarantee alignment between the axes of separate graphs The trick to doing this is to create separate coordinate system objects CartesianCoordinates or TimeCoordinates for each chart and to position the plot area volume of each coordinate system so that they do not overlap Use one of the coordinate systems SetGraphBorder methods Many of the examples use this technique including GroupBarPlotChart DoubleBarPlot OHLFinPlot FinOptions DynPieChart PieAndLineChart and PieAndBarChart Multiple charts in a ChartView example extracted from the example program FinancialExamples OHLCChart C pTransforml new TimeCoordinates prransforml SetGraphBorderDiagonal 0 1 15 90 0 55 pTransform2 new TimeCoordinates prransform2 SetGraphBorderDiagonal 0 1 675 90 0 85 Visual Basic pTransforml New TimeCoordinates pTransforml SetGraphB
99. new LogAxis logYScale ChartObj Y AXIS Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Visual Basic Dim xMin As Double 0 Dim xMax As Double 1000 Dim yMin As Double 0 2 Dim yMax As Double 2000 Dim logYScale As CartesianCoordinates _ New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE logYScale SetCoordinateBounds xMin yMin xMax yMax Create a linear x axis and a logarithmic y axis Dim xAxis As LinearAxis New LinearAxis logYScale ChartObj X AXIS Dim yAxis As LogAxis New LogAxis logYScale ChartObj Y AXIS Axes 181 Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Should want to customize the axis you can add the following lines after the yAxis object is created Custom logarithmic axis example C Place the y axis on the right side of the graph with tick marks point towards the right double yAxisIntercept 1000 double yAxisIntercept2 0 Major tick marks at 0 2 2 20 200 and 2000 double yAxisOrigin 0 2 In addition to major tick marks labels flagged for some minor tick marks int yAxisLogFormat 1 double yAxisMinorTickLength
100. new NumericLabel GetChartObjScale textCoordsFont 470 FAQs rNumericLabelCntr nearestPoint GetX nearestPoint GetY nearestPoint GetZ PHYS POS DECIMALFORMAT 0 Nudge text to the right and up so that it does not write over marker pointLabel SetTextNudge 5 5 chartview AddChartObject pointLabel chartview UpdateDraw VB Dim amarker As New Marker GetChartObjScale MARKER BOX nearestPoint GetX _ nearestPoint cetY nearestPoint Ocetz 10 0 PHYS POS amarker SetColor Color White chartview AddChartObject amarker rNumericLabelCntr 1 0 Add a numeric label the identifies the marker pointLabel New NumericLabel GetChartObjScale textCoordsFont _ rN mericLabelCntr nearestPoint bDetX nearestPoint cetY _ nearestPoint GetZ PHYS POS DECIMALFORMAT 0 Nudge text to the right and up so that it does not write over marker pointLabel SetTextNudge 5 5 chartview AddChartObject pointLabel chartview UpdateDraw 4 How do you zoom charts that use multiple coordinate systems The ChartZoom class will zoom one or more simultaneous coordinate systems The example program SuperZoom zooms a chart that has one x axis and five y axes Use the ChartZoom constructor that accepts an array of coordinate system objects S How do you select a chart object and create a dialog panel that permits editing of that objects properties The QCChart3D for Net library does not include predefined
101. nnumpnts 1 As ChartCalendar x1 0 6 yl 0 0 New ChartCalendar 2002 ChartObj JANUARY 1 yl 1 0 New ChartCalendar 2003 ChartObj JANUARY 1 STOT 5 yl 0 1 New ChartCalendar 2002 ChartObj JANUARY 1 yl 1 1 New ChartCalendar 2002 ChartObj MAY 1 xl 2 5 yl 0 2 New ChartCalendar 2002 ChartObj AUGUST 1 yl 1 2 New ChartCalendar 2002 ChartObj NOVEMBER 1 x1 3 4 yl 0 3 New ChartCalendar 2002 ChartObj JANUARY 1 yl 1 3 New ChartCalendar 2002 ChartObj MARCH 1 Dim Datasetl As New TimeGroupDataset Actual Sales x1 yl 0 1 0 8 Datasetl ImplicitDepthValue 0 3 Datasetl ImplicitZValue 0 5 Dim pTransforml As New TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES NEAR pTransforml SwapScaleOrientation pTransforml SetScaleStartY 0 pTransforml SetGraphBorderDiagonal 0 2 0 05 0 95 0 75 Dim graphbackground As New Background pTransforml ChartObj GRAPH BACKGROUND Color FromArgb 30 70 70 Color FromArgb 90 20 155 ChartObj Y AXIS chartVu AddChartObject graphbackground 272 Group Plot Objects Set chart rotation Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 Dim thePlotl As New FloatingBarPlot pTransforml Dim attribl As New ChartAttribute Color Black 1 DashStyle Solid Color Green attribl SetFillFlag True thePlotl I
102. numeric value A pie chart uses a default CartesianCoordinates object Center it in the window using the CartesianCoordinates SetGraphBorderDiagonal method Format the text used to label the pie chart both the strings and the numeric values using a NumericLabel template set using the PieChart SetPlotLabelTemplate method Change the starting Pie Charts 363 position of the first pie wedge from the default value of 0 0 3 00 position using the PieChart SetStartPieSliceAngle method Simple pie chart extracted from the example program PieCharts SimplePieChart Aetius Mutual Fund Asset Allocation Technology 5 8 Automotive 4 2 Click on any pie wedge to see a detail Simple pie chart PieCharts SimplePieChart ChartView chartVu Font theFont theFont new Font Microsoft Sans Serif 10 FontStyle Bold String labelArray chartVu this Define the pie segment labels int numPoints 5 364 Pie Charts String sPieStrings Technology Retail Banking Automotive Aerospace ChartAttribute attribs new ChartAttribute 5 Color colorArray Color Red Color Blue Color Cyan Color Yellow Color Green String techLabel String retailLabel String bankLabel String aeroLabel String autoLabel create pie chart data double x1 new double numPoints double yl new double numPoints int Ze x values represent pie chart segment value y values represent the
103. point numbers as the y and z values ChartCalendar values are actually stored internally as their equivalent millisecond values The TimeGroupDataset3D class adds a large number of methods to the GroupDataset class that make it easy to create and modify datasets that use ChartCalendar values This constructor creates a new group TimeGroupDataset3D object where the x values are ChartCalendar values and the y values are floating point numbers TimeGroupDataset3D constructors Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ ByVal z As Double _ Overloads Public Sub New _ ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ 100 Chart Datasets ByVal z As Double Q ByVal depthvalue As Double Es C public TimeGroupDataset3D string sname ChartCalendar x double y double z public TimeGroupDataset3D string sname ChartCalendar x double y double z double depthvalue sname depthvalue Specifies the name of the dataset An array of ChartCalendar dates that specifies the x values of a dataset The length of the x array sets the number of columns for the group dataset An array that specifies the y values of a group dataset where y has the dimensions number of rows number of columns The number of rows in the y array sets the number of groups in
104. program MouseListeners MoveDatapoints C classlAverage Datasetl GetAverageY class2Average Dataset2 GetAverageY StringLabel classlLabel new StringLabel pTransforml subheadFont Class 1 n Average 0 9 0 3 ChartObj NORM GRAPH POS chartVu AddChartObject classlLabel classlAverageLabel new NumericLabel pTransforml subheadFont classlAverage 0 9 0 35 ChartObj NORM GRAPH POS ChartObj DECIMALFORMAT 1 chartVu AddChartObject classlAverageLabel StringLabel class2Label new StringLabel pTransforml subheadFont Class 2 Mn Average 0 9 0 5 ChartObj NORM GRAPH POS chartVu AddChartObject class2Label class2AverageLabel new NumericLabel pTransforml subheadFont class2Average 0 9 0 55 ChartObj NORM GRAPH POS ChartObj DECIMALFORMAT 1 chartVu AddChartObject class2AverageLabel Visual Basic classlAverage Datasetl GetAverageY class2Average Dataset2 GetAverageY Dim classlLabel As New StringLabel pTransforml subheadFont Class 1 ControlChars Lf Average 0 9 0 3 ChartObj NORM GRAPH POS chartVu AddChartObject classlLabel classlAverageLabel New NumericLabel pTransforml subheadFont classlAverage 0 9 0 35 ChartObj NORM GRAPH POS ChartObj DECIMALFORMAT 1 chartVu AddChartObject classlAverageLabel Dim class2Label As New StringLabel pTransforml subheadFont Class 2 ControlChars Lf Average 0 9 0 5 ChartObj NORM GRAPH P
105. represented by the dataset attrib Specifies the attributes line color and line style for the histogram bars An individual histogram bar in the histogram plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Each histogram bar can be labeled with the Y 0 group value bar bar height using the bar data point methods see the example below Histogram plot example extracted from the example program Bargraphs HistogramBars C Define data int nnumpnts 6 int numgroups 2 double x1 new double nnumpnts double yl new double numgroups nnumpnts height width x1 0 0 y1 0 0 12 y1 1 0 13 xL i 13s yl 0 1 972 seit e 7 x1 2 20 y1 0 2 80 y1 1 2 10 x1 3 30 yl1 0 3 44 y1 1 3 10 xl 4 40 y1 0 4 28 y1 1 4 20 xl 5 0 y1 0 5 4 yl1 1 5 20 Define dataset GroupDataset Datasetl new GroupDataset Actual Sales x1 yl Datasetl ImplicitDepthValue 1 0 Datasetl ImplicitMinZValue 0 0 Define coordinate system CartesianCoordinates pTransforml new CartesianCoordinates pTransforml SetScaleStartY 0 pTransforml SetScaleStartX 0 pTransforml1 SetScaleStopX 80 Group Plot Objects 283 pTransforml SetScaleStopy 1 00 position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 15
106. select Add Reference Browse to the Quinn Curtis DotNet lib subdirectory and select the QCChart3DNet DLL Also add System Windows Forms dll from the Net list box Add a method that makes the chart and returns a ChartView object of the chart In the example below this is the function GetInitializeChart It has String arguments that contain the x and y data values and integers that specify the desired height and width for the chart Using QCChart3D for Net to Create Web Applications 433 using System using System Collections using System ComponentModel using System Data using System Drawing using System Web using System Web SessionState using System Web UI using System Web UI WebControls using System Web UI HtmlControls using com quinncurtis chart3dnet using System Drawing Drawing2D using System Drawing Imaging namespace Chart3DWebApplicationl 4 4 summary Summary description for WebForml lt summary gt public class WebForml System Web UI Page private void Page Load object sender System EventArgs e Get Input from HTML ASP page request String widthstring Request Params Get 0 String heightstring Request Params Get 1 String XDataString Request Params Get 2 String YDataString Request Params Get 3 int imagewidth int Parse widthstring int imageheight int Parse heightstring ChartView chartVu GetInitializeChart XDataString YDataString imagewidt
107. shaded according to the chart rotation From 101 xi CellPlotChart ArowChart LabeledDatapoints BushGuardRecords RealGDPGrowth ScatterPlot3D el Mental Powers Peak in Late Afternoon 5 0x10 4 0x10 3 0x10 2 0x10 puooes Buta SUOJ ANN 1x108 0 0x10 0 00 1 00 2 00 3 00 4 00 10 31 06 5 00 6 00 7 00 8 00 9 00 10 00 Time of Day 12 Noon to 12 Midnight Each scatter plot symbol in a graph can have an individually assigned color and size This example uses both a graph area background and a plot area background ScatterPlots ScatterPoints 160 Background Colors Textures and Gradients Background constructors Use this constructor to fill the background with a single color Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal bgtype As Integer _ ByVal bgcolor As Color _ C public Background PhysicalCoordinates transform int bgtype Color bgcolor Use this constructor to fill the background with the gradient defined using the startcolor and stopcolor arguments Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal bgtype As Integer _ ByVal startcolor As Color _ ByVal stopcolor As Color _ ByVal dir As Integer _ C public Background PhysicalCoordinates transform int bgtype Color startcolor Color stopcolor int dir Use this c
108. specified using graph normalized coordinates The rear inset of the plot area volume inside the graph area volume specified using graph normalized coordinates The following examples all position the plot area volume of the chart in the upper right quadrant of the graph viewport C 114 Scaling and Coordinate Systems CartesianCoordinates simpleScale Assume the default value of 0 0 to 1 0 for z dimension simpleScale new CartesianCoordinates xMin yMin xMax yMax Use ONE of the example below Example 1 simpleScale SetGraphBorderFrame new Rectangle3D 0 5 0 0 0 5 0 5 Example 2 simpleScale SetGraphBorderFrame 0 5 0 0 0 5 0 5 Example 3 simpleScale SetGraphBorderDiagonal 0 5 0 0 1 0 0 5 Example 4 simpleScale SetGraphBorderInsets 0 5 0 0 0 0 0 5 Visual Basic Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 105 Dim simpleScale As CartesianCoordinates simpleScale New CartesianCoordinates xMin yMin xMax yMax Use ONE of the example below Example 1 simpleScale SetGraphBorderFrame new Rectangle3D 0 5 0 0 0 5 0 5 Example 2 simpleScale SetGraphBorderFrame 0 5 0 0 0 5 0 5 Example 3 simpleScale SetGraphBorderDiagonal 0 5 0 0 1 0 0 5 Example 4 simpleScale SetGraphBorderInsets 0 5 0 0 0 0 0 5 Scaling and Coordinate Systems 115 Rotating the Chart in the Gr
109. ss sesessessesseesseesesseesseesreseessee 431 On Demand Creation of QCChart3D Images from a Server 432 Visual Ci Tor ET Santen arteria en o o e ee 432 Visual Basic for N eh so ete ele ne diet wet eA prse tases goonies iss pa pie 440 Embedding a QCChart3D Object into Internet Explorer 447 Visual C Create a Windows Control Library and User Control 448 Visual Basic Create a Windows Control Library and User Control 453 Create the HTML File That Displays the User Control 457 25 Frequently Asked Questions ae Euren 461 FADS m Eege eene AE 461 INDEX Ce 489 xli The QCChart3D for Net Charting Library 1 Introduction Tutorials Tutorials that describe how to get started with the QCChart3D for Net charting software are found in Chapter 23 Using OCChart3D for Net to Create Windows Applications and Chapter 24 Using OCChart3D for Net to Create Web Applications QCChart3D for Net Background Charting is the display of quantitative information using a combination of lines points bars colors curves text and images Charts are a relatively new invention first organized categorized and extensively used by William Playfair 1759 1823 in the late 18th century The purpose of charts has remained unchanged since that time A chart replaces a tabular numeric display of information with a graphical image that visually shortcuts
110. string The symbol normally associates the legend item to a particular plot object and the descriptive string describes what the plot object represents The BubblePlotLegend is a subclass of the Legend class and it is the legend class for bubble plots The legend items objects display as offset concentric circles with descriptive text giving the key for the value associated with a bubble of this size Standard Legends Class StandardLegend GraphObj StandardLegend The StandardLegend is the primary legend class for all plot objects except for bubble plots The class manages a list of LegendItems that holds the symbols and descriptive text for the symbols 372 Legends StandardLegend constructors visual Basic Overloads Public Sub New ByVal rx As Double _ ByVal ry As Double _ ByVal attrib As ChartAttribute ByVal nlayoutimode As Integer _ Overloads Public Sub New _ ByVal rx As Double _ ByVal ry As Double _ ByVal rwidth As Double ByVal rheight As Double _ ByVal attrib As ChartAttribute ByVal nlayoutlmode As Integer _ C public StandardLegend double rx double ry ChartAttribute attrib int nlayoutlmode public StandardLegend double rx double ry double rwidth double rheight ChartAttribute attrib int nlayoutlmode b rx The x position in chart normalized coordinates of the legend rectangle ry The y position in chart normalized coordina
111. system based on one or more datasets The second part is the auto scaling of the axes that reside in the coordinate system Manually scale the coordinate system and axes by calling the appropriate constructors For example C ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 double yMin 0 double yMax 105 TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed TimeAxis xAxis new TimeAxis simpleTimeScale Create the linear y axis LinearAxis yAxis new LinearAxis simpleTimeScale ChartObj Y AXIS Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Visual Basic Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY Dim yMin As Double 0 5 5 FAQs 475 Dim yMax As Double 105 Dim simpleTimeScale As TimeCoordinates simpleTimeScale New TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed Dim xAxis As TimeAxis New TimeAxis simpleTimeScale Create the linear y axis Dim yAxis As LinearAxis New LinearAxis simpleTimeScale ChartObj Y AXIS
112. system have their date time value converted to milliseconds seconds by subtracting the starting date of the scale from the data point date making sure to exclude the seconds associated with weekends and fractional days if necessary The data point is plotted in the milliseconds based linear coordinate system Since the QCChart3D for Net library uses milliseconds as the underlying time base the minimum allowable displayable range is one millisecond For ranges smaller than one second the programmer needs to convert the ChartCalendar values to seconds or milliseconds and use the CartesianCoordinates class to scale the chart You loose the date time formatting of the axis labels but this should not matter if you are dealing in the sub millisecond realm 128 Scaling and Coordinate Systems Class TimeCoordinates PhysicalCoordinates TimeCoordinates The TimeCoordinates class scales the chart plot area volume for physical coordinate systems that use date time scaling The basic techniques are essentially the same as those used with linear and logarithmic scaling only the TimeCoordinates class uses ChartCalendar dates in place of numeric values for the x axis scale values The minimum and maximum values of the x y and z scales can be set explicitly set using one of the auto scale methods or set using a combination of the two The default coordinate system for the TimeCoordinates class is time for the x scale linear for the y scale and
113. the TimeCoordinates AutoScale method that take rounding mode parameters Example of auto scaling a TimeCoordinates object using a single dataset and explicit rounding mode parameters simpleTimeScale AutoScale dataset ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR You can auto scale the coordinate bounds using a dataset and then explicitly modify the range the auto scale selected There are methods for setting the minimum and maximum values of the x y and z scales This way you can use the auto scale methods for the values of one scale the y scale in the example below but explicitly set the values for the other scale the x scale in the example below Example of modifying the minimum and maximum values selected by an auto scale method C ChartCalendar xData new ChartCalendar 1996 ChartObj FEBRUARY 5 new ChartCalendar 1996 ChartObj MARCH 5 new ChartCalendar 1996 ChartObj APRIL Sys new ChartCalendar 1996 ChartObj MAY 5 new ChartCalendar 1996 ChartObj JUNE 5 new ChartCalendar 1996 ChartObj JULY 5 new ChartCalendar 1996 ChartObj AUGUST 5 new ChartCalendar 1996 ChartObj SEPTEMBER 5 new ChartCalendar 1996 ChartObj OCTOBER 5 new ChartCalendar 1996 ChartObj NOVEMBER 5 double yData 10 22 33 44 55 46 33 25 14 9 double zvalue 0 0 double depthvalue 1 0 TimeSimpleDataset dataset new TimeSimpleDataset Sales xData yData zvalue depthvalue
114. the attributes of individual scatter plot points thePlotl SetSegmentAttributesMode True Dim segmentAttrib As New ChartAttribute Color Red 1 DashStyle Solid Color Red segmentAttrib SetSymbolSize 20 Simple Plot Objects 241 thePlotl SetSegmentAttributes 8 segmentAttrib thePlotl SetSegmentAttributes 9 segmentAttrib thePlotl SetSegmentAttributes 10 segmentAttrib thePlot1 SetSegmentAttributes 11 segmentAttrib chartVu AddChartObject thePlot1 Simple Line Marker Plots Class SimpleLineMarkerPlot GraphObj ChartPlot SimplePlot SimpleLineMarkerPlot The SimpleLineMarkerPlot class is a subclass of the SimplePlot class and displays simple datasets in a line plot format where scatter plot symbols highlight individual data points The symbols can take the form of a flat 2D symbol or a 3D symbol When used with a 2 D dataset the position of the symbol with respect to the z axis is set using the attached datasets ImplicitZ Value property The datasets ImplicitDepthValue property is not used When a simple scatter plot is attached to a 3D dataset the scatter plot symbol is not restricted to a z axis plane and can traverse 3D space unrestricted 100 90 80 31095 ISO L 0 5 10 15 20 Student Simple line marker plot ScatterPlots LabeledDatapoints 242 Simple Plot Objects SimpleLineMarkerPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates
115. the group dataset The number of columns in the y array must match the length of the x array An that specifies the x values of a dataset The length of the x array sets the number of columns for the group dataset Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of columns in the group dataset is the value of x Length property The number of columns in the y array must match the length of the x array and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped Visual Basic Overloads Public Sub New ByVal csv As CSV ByVal filename As String E ByVal rowskip As Integer _ ByVal columnskip As Integer _ Chart Datasets 101 C public TimeGroupDataset3D CSV csv string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the time values and subsequent columns represent the y values where each column is a group If you use the ROW MAJOR format the first row represents the time values and subsequent rows represent the y values where each row i
116. the millisecond equivalent of the date time values The TimeGroupDataset3D GetXData and GetYData methods return references to the underlying data You can also modify a point at a time using one of the TimeGroupDataset3D SetTimeXDataValue and SetYDataValue methods If you need to add new points to dataset increasing its size use one of the 102 Chart Datasets AddTimeGroupDataPoints or InsertTimeGroupDataPoints methods Delete data points using the DeleteDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method Example of creating a group time datasets C int nNumPnts 50 nNumGroups 4 int weekmode ChartObj WEEK 5D ChartCalendar xValues new ChartCalendar nNumPnts double stockPriceData new double nNumGroups nNumPnts double zValues new double nNumPnts double minval 0 0 maxval 0 0 int 1j ChartCalendar currentdate new ChartCalendar ChartCalendar SetTOD currentdate 0 0 1 currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode Make sure not to start on a weekend xValues 0 ChartCalendar currentdate Clone zValues 0 0 3 currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode stockPriceData 3 0 25 close stockPriceData 0 0 25 open stockPriceData 1 0 26 il high stockPriceData 2 0 24 low for i91 i lt nNumPnts i xValues i ChartCalendar currentdat
117. theFont bardatavalue SetNumericFormat ChartObj CURRENCYFORMAT bardatavalue SetDecimalPos 0 bardatavalue SetColor Color White thePlotl SetPlotLabelTemplate bardatavalue thePlotl SetShowDatapointValue True chartVu AddChartObject thePlot1 Simple Scatter Plots Class SimpleScatterPlot GraphObj ChartPlot Simple Plot Objects 237 SimplePlot SimpleScatterPlot The SimpleScatterPlot class is a subclass of the SimplePlot class and displays simple datasets in scatter plot format where each data point is a symbol The symbols can take the form of a flat 2D symbol or a 3D symbol When used with a 2 D dataset the position of the symbol with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property is not used When a simple scatter plot is attached to a 3D dataset the scatter plot symbol is not restricted to a z axis plane and can traverse 3D space unrestricted yndyno YOM eiqesnseelN 10 15 20 MBAs 1000 employees Simple scatter plots ScatterPlots SimpleScatter SimpleScatterPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As SimpleDataset ByVal symtype As Integer ByVal attrib As ChartAttribute Ct public SimpleScatterPlot PhysicalCoordinates transform SimpleDataset dataset int symtype ChartAttribute attrib 238
118. then released The rectangle established by mouse start and stop points defines the new zoomed scale of the associated axes Zooming has many different modes Some of the combinations are One x or one y axis One x and one y axes One x and multiple y axes One y and multiple x axes Multiple x and y axes This mouse listener is a user control derived from a button e that looks like dialog box Clicking on it invokes the following 54 Class Architecture Li oxi Chart Rotation Control Aus Z Axis a 15 0 Z Lesch Axis m i 0 Light Level all po ax zl RotateTransform3D that can rotate and change the lighting level of one or more coordinate systems This mouse listener monitors mouse clicks on chart objects type and invokes the dialog Chart Rotation Control dialog box File and Printer Rendering Classes ChartPrint BufferedImage ChartPrint BufferedImage This class implements printing using the Net System Drawing Printing print related services It can select setup and output one or more ChartView objects to a printer This class will convert a ChartView object to a Net Image object Optionally the class saves the buffered image to an image file Miscellaneous Utility Classes ChartCalendar CSV Dimension3D GroupPoint3D GroupPoint2D DoubleArray DoubleArray2D BoolArray Point3D NearestPointData TickMark Polysurface Rectangle2D Rectangle3D ChartCalendar
119. to QCChart3D 2 How do you create a chart with multiple coordinate systems and axes FAQs 463 A chart can have as many coordinate systems and axes as you want A single coordinate system can have one or more x and or y axes The most common use for multiple axes in a single coordinate system is to place y axes on both the left and the right sides of a chart and x axes above and below The left and bottom axes usually have numeric or date labels and the top and right axes just tick marks This does not have to be the case though every axis can have axis labels if you want In general the axis position in the chart is determined by its intercept The default value of the intercept is set to the minimums of the coordinate system that the axis is placed in Adjusting the intercept using the SetAxisIntercept method changes the position of the axis in the chart The axis intercept value is set using units of the coordinate system at right angles to the axis The example below extracted from the LineFill example places y axes on both the left and right of the chart C TimeAxis xAxis new TimeAxis pTransforml chartVu AddChartObject xAxis TimeAxis xAxis new TimeAxis pTransforml xAxis SetColor Color White chartVu AddChartObject xAxis LinearAxis yAxis new LinearAxis pTransforml ChartObj Y AXIS Default places y axis at miniumum of x coordinate scale yAxis SetColor Color White chartVu AddChartObjec
120. use the SOFTWARE after the thirty 30 days If you continue to use the SOFTWARE after the thirty 30 days without paying the license fee you will be using the SOFTWARE on an unlicensed basis Redistribution of 30 Day Trial Copy Bear in mind that the 30 Day Trial version of the SOFTWARE becomes invalid 30 days after downloaded from our web site or one of our sponsor s web sites If you wish to redistribute the 30 day trial version of the SOFTWARE you should arrange to have it redistributed directly from our web site If you are using SOFTWARE on an evaluation basis you may make copies of the evaluation SOFTWARE as you wish give exact copies of the original evaluation SOFTWARE to anyone and distribute the evaluation SOFTWARE in its unmodified form via electronic means Internet BBS s Shareware distribution libraries CD ROMs etc You may not charge any fee for the copy or use of the evaluation SOFTWARE itself You must not represent in any way that you are selling the SOFTWARE itself You must distribute a copy of this EULA with any copy of the SOFTWARE and anyone to whom you distribute the SOFTWARE is subject to this EULA C Redistributable License The standard Developer License permits the programmer to deploy and or distribute applications that use the Quinn Curtis SOFTWARE royalty free We cannot allow developers to use this SOFTWARE to create a graphics toolkit a library or any type of graphics component that will be used in combinatio
121. values When used with a 2 2 D dataset the position of the bar with respect to the z axis is set using the attached datasets ImplicitZValue property The bar plot depth is set using the attached datasets ImplicitDepthValue property When a simple bar plot is attached to a 3D dataset the bar is not restricted to a z axis plane and can traverse 3D space unrestricted In that case the ImplicitZValue is ignored The individual elements of the bar plot are normally 3D bars but you can also set the bar plots BarShapeOption property to a cone CONE3D or cylinder CYLINDER3D 232 Simple Plot Objects 100 e suen 50 SimpleB Visual B Overloads ByVal ByVal ByVal ByVal ByVal ByVal C Bars Cylinders Cones co o o Ka bi e lt Te e M eo e o o e e eo e S eo o e e e e eo e e ae N N N N N N N A bar plot that uses bars cylinders and bars Bargraphs SimpleBars arPlot constructor asic Public Sub New _ transform As PhysicalCoordinates dataset As SimpleDataset barwidth As Double _ barbase As Double _ attrib As ChartAttribute barjust As Integer _ public SimpleBarPlot PhysicalCoordinates transform SimpleDataset dataset double barwidth double barbase ChartAttribute attrib int barjust transform The coordinate system for the new SimpleBarPlot object dataset The bar plot represents the values in this dataset barwidth The width of the bars in phy
122. version of the same mouse event function so that the data cursor continues to track the mouse Simple data cursor example Extracted from the DataCursorsAndMarkers DataCursors example program Click and drag the mouse releasing the mouse near a data point 40 20 eo 20 0 0 0 2 0 4 0 6 0 8 1 0 DataCursorsAndMarkers DataCursors C Create a standard data cursor object and add it as a mouse listener DtaCursor dataCursorObj new DataCursor chartVu pTransforml ChartObj MARKER HVLINE 16 0 dataCursorObj ChartObjClipping ChartObj GRAPH AREA CLIPPING dataCursorObj SetEnable true chartVu SetCurrentMouseListener dataCursorObj Data Markers and Data Cursors 327 Visual Basic Create a standard data cursor object and add it as a mouse listener Dim dataCursorObj As New DataCursor chartVu pTransforml _ ChartObj MARKER HVLINE 16 0 dataCursorObj ChartObjClipping ChartObj GRAPH AREA CLIPPING dataCursorObj SetEnable True chartVu SetCurrentMouseListener dataCursorObj A marker can be placed at any xyx coordinate location in a graph It is often desirable to place a marker at the exact location of a data point in one of the datasets plotted in the graph Many applications require the user to click on the approximate location of a point and then the software must find the data point nearest that click and mark it The DataCursor and Marker classes in combination with the plot objects CalcNeares
123. void OnMouseDown MouseEventArgs mouseevent if right mouse buggon pop zoom stack one level if mouseevent Button amp MouseButtons Right 0 this PopZoomStack else base OnMouseDown mouseevent 344 Zooming SimpleDataset Datasetl new SimpleDataset First xl yl SimpleDataset Dataset2 new SimpleDataset Second x1 y2 SimpleDataset Dataset3 new SimpleDataset Third x1 y3 SimpleDataset Dataset4 new SimpleDataset Fourth x1 y4 SimpleDataset Dataset5 new SimpleDataset Fifth x1 y5 CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR CartesianCoordinates pTransform2 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj pTransform2 AutoScale Dataset2 ChartObj AUTOAXES FAR ChartObj AU CartesianCoordinates pTransform3 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj pTransform3 AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AU CartesianCoordinates pTransform4 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj pTransform4 AutoScale Dataset4 ChartObj AUTOAXES FAR ChartObj AU CartesianCoordinates pTransform5 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE TOAXES FAR LINEAR SCALE TOAXES FAR LINEAR SCALE TOAXES FAR LINEAR SCALE pTransform5 AutoScale Datas
124. ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the x values and the second and third columns the y and z values If you use the ROW MAJOR format the first row represents the x values and the second and third row the y and z values Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ C public ContourDataset CSV csv string filename int rowskip int columnskip sname Specifies the name of the dataset grid An array size npoints or size rows columns of Point3D points that specifies the xyz values of a dataset Some of the constructors require the data points form a regular grid in the xy plane A regular grid is one where the x increment between adjacent x values is fixed as is the y increment The x increment and the y increment do not have to be the same rows Specifies the number of rows in the y direction in the regular grid Also specifies the number of rows or y values to evaluate the function over in the constructor that uses a SurfaceFunction argument 64 Chart Datasets columns Specifies the number of columns in the x direction in the regular grid Also specifies the number of columns or y values to evaluate the function
125. your own shell application for your own server get it to run and then add Web Forms as you need them to support the chart application Once you create a shell ASP Net application that you know runs on the target server adding a chart using the behind code of a ASP Net Web Form is simple On Demand Creation of QCChart3D Images from a Server Visual C for Net If you do not already have an application program project create one using the Visual Studio project wizard File New Project Visual C Projects ASP Net Application On the left select a project type of Visual C Projects Give the project a unique name our version of this example is Chart3DWebApplication1 You will end with a basic WebForm based application with one System Web UI Page derived form WebForml aspx by default For purposes of this example the chart will placed in the initial default form Assume that you want to make an ASP Net application that streams an image file to an image component in a web page You do not need to add anything to the WebForml aspx page Right click on the page and select View Code This brings up the code behind file WebForml aspx cs for the WebForml aspx page Add the following references in the using section at the top of the WebForml aspx cs file using System Drawing using System Drawing Drawing2D using System Drawing Imaging using com quinncurtis chart3dnet e Right click on Reference in the Solution Explorer window and
126. 0 new ChartCalendar 2003 ChartObj JANUARY 1 xl 1 5 yl 0 1 new ChartCalendar 2002 ChartObj JANUARY 1 yl 1 1 new ChartCalendar 2002 ChartObj MAY 1 TimeGroupDataset Datasetl new TimeGroupDataset Actual Sales xl yl 0 1 0 8 Datasetl ImplicitDepthValue 0 37 Datasetl ImplicitZValue 0 5 TimeCoordinates pTransforml new TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES NEAR pTransforml SwapScaleOrientation prIransforml SetScaleStartY 0 prransforml SetGraphBorderDiagonal 0 2 05 95 0 75 Background graphbackground new Background pTransforml ChartObj GRAPH BACKGROUND Color FromArgb 30 70 70 Color FromArgb 90 20 155 ChartObj YX AXIS chartVu AddChartObject graphbackground Set chart rotation Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 FloatingBarPlot thePlotl new FloatingBarPlot pTransforml ChartAttribute attribl new ChartAttribute Color Black 1 DashStyle Solid Color Green attribl SetFillFlag true thePlotl InitFloatingBarPlot Datasetl 0 75 attribl ChartObj JUSTIFY CENTER Group Plot Objects 271 thePlotl SetBarOrient ChartObj HORIZ DIR chartVu AddChartObject thePlot1 Visual Basic Dim nnumpnts As Integer 18 Dim numgroups As Integer 2 Dim xl nnumpnts 1 As Double Dim yl numgroups 1
127. 0 000015 Scientific notation 1 5e 5 Exponent notation 1 5x10 Percent format 76 Business format where B M and K are used to represent billions millions and thousands 1043M 11 0K e Currency format 123432 e Business currency format The business format combined with the currency format 123K Depending on the scaling of the associated axis the numeric values of the axis labels may be very large or very small numbers requiring a great deal of space to display Various techniques are used to abbreviate the numeric value reducing the space requirements Expressing a numeric value in scientific notation can reduce the amount of space a label requires if the numeric value requires eight or more digits If the label values end in a lot of zeros 10000000 9000000 8000000 a major reduction in space is achieved by using the business format which replaces all of the zeros with a letter 10M 9M 8M The axis numeric labels constants are listed below 196 Axis Labels Numeric Format Constant Description DECIMALFORMAT Decimal format i e 1234 563 SCIENTIFICFORMAT Scientific or exponential format 1 23e3 BUSINESSFORMAT Business format where the letters K M B or T are appended on the end a truncated numeric value i e 1 23 14K 44M 32B 3 0T ENGINEERINGFORMAT If the absolute value of the label is greater than 1 0e6 or less than 1 0e 6 the scientific format is used else the decimal format is used PERCE
128. 000000 Dim RawDataset As TimeSimpleDataset new _ TimeSimpleDataset Raw xtimedata ydata nNumPnts Dim compressXmode As Integer ChartObj DATACOMRESS AVERAGE Dim compressYmode As As Integer ChartObj DATACOMRESS MINMAX Dim compressTimeField As Integer Calendar MONTH Dim CompressedDataset As TimeSimpleDataset _ RawDataset CompressTimeFileSimpleData compressXmode compressYmode compressTimeField 0 nNumPnts Compressed 20 How do I get data from my database into a chart The real question is How do you get data from your database into a simple Net program storing sequential data values in data array variables This is up to you and is independent of the charting software We recommend that you use the SQL database classes that are part of Net and study the documentation provide by Microsoft and other sources such as the O Reilly programming books Once you can read individual data elements of your data base it is a trivial matter to place the numeric and calendar data into simple Net array variables and from there plot the data 21 How do I use this charting software to generate chart images on the fly from a server The BufferedImage class creates chart images independent of any physical display context The BufferedImage class uses a System Drawing Imaging ImageFormat object to control the format of the resulting image bitmap You can use this image as an image object in an HTML page See the previous chapte
129. 1 chartVu AddChartObject ygrid Define the z axis grid for the YZ MINX PLANE Grid zgridl new Grid xAxis yAxis zAxis ChartObj Z AXIS ChartObj GRID MAJOR zgridl SetColor Color White zgridl SetLineStyle DashStyle Solid zgridl SetLineWidth 1 zgridl GridAxisPlane ChartObj YZ MINX PLANE chartVu AddChartObject zgrid1l Define the z axis grid for the XZ MINY PLANE Grid zgrid2 new Grid xAxis zAxis ChartObj Z AXIS ChartObj GRID MAJOR zgrid2 SetColor Color White zgrid2 SetLineStyle DashStyle Solid zgrid2 SetLineWidth 1 zgrid2 GridAxisPlane ChartObj XZ MINY PLANE chartVu AddChartObject zgrid2 Define the z axis grid for the XZ MINY PLANE Grid bottomxgrid new Grid xAxis zAxis ChartObj X AXIS ChartObj GRID MAJOR bottomxgrid SetColor Color White bottomxgrid SetLineStyle DashStyle Solid bottomxgrid SetLineWidth 1 bottomxgrid GridAxisPlane ChartObj XZ MINY PLANE chartVu AddChartObject bottomxgrid Visual Basic Auto scale a coordinate system for data Dim pTransforml As New TimeCoordinates Define the x or time axis Dim xAxis As New TimeAxis pTransforml xAxis AxisTickDir3D ChartObj Y AXIS xAxis AxisTickDir ChartObj AXIS MIN chartVu AddChartObject xAxis Define the y axis Dim yAxis As New LinearAxis pTransforml ChartObj Y AXIS yAxis AxisIntercept2 0 0 chartVu AddChartObject yAxis Define the z axis Dim zAxis As New
130. 1 198 199 204 205 325 329 330 331 332 333 334 338 339 340 341 342 343 344 350 352 356 363 365 371 381 401 403 413 414 415 416 417 418 420 421 422 423 425 426 428 429 431 432 433 434 435 436 440 441 443 447 448 449 450 451 453 455 464 466 469 471 472 475 476 477 478 479 481 482 486 Comma separated values 54 55 61 63 64 65 66 68 70 71 74 76 77 79 83 84 87 89 90 91 92 93 95 96 98 100 101 248 Contour plotting 14 15 61 63 64 81 82 83 85 86 87 313 315 334 335 ContourDataset 14 15 61 63 64 81 82 83 85 86 87 313 315 334 335 CSV 54 55 61 63 64 65 66 68 70 71 74 76 77 79 83 84 87 89 90 91 92 93 95 96 98 100 101 248 Data compression 485 Data cursors 52 61 321 324 325 326 327 DataCursor 52 61 321 324 325 326 327 Dataset 14 15 28 58 61 63 64 69 72 77 81 86 87 90 94 99 109 Dataset classes 14 15 28 58 61 63 64 69 72 77 81 86 87 90 94 99 109 DataToolTip 52 53 61 349 350 351 352 353 354 355 356 472 Dimension 54 55 58 61 340 341 346 347 407 408 Error bar plots 29 33 61 247 263 264 ErrorBarPlot 29 33 61 247 263 264 Finding graph objects 52 61 155 156 470 472 FindObj 52 61 155 156 470 472 Floating bar plots 29 34 61 247 264 265 268 269 270 272 273 Floating stacked bar plots 35 272
131. 1 yl Datasetl ImplicitDepthValue 0 1 Datasetl ImplicitZValue 0 5 pTransforml new CartesianCoordinates pTransforml SetScaleStartX 0 Transforml SetScaleStartY 0 T pTransforml SetScaleStopX 12 Transforml SetScaleStopY 7 IO pTransforml SetGraphBorderDiagonal 0 2 15 95 0 8 Background graphbackground new Background pTransforml ChartObj GRAPH BACKGROUND 268 Group Plot Objects Color FromArgb 30 70 70 Color FromArgb 90 20 155 ChartObj Y AXIS chartVu AddChartObject graphbackground Set chart rotation Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 ChartAttribute attribl new ChartAttribute Color Black 1 DashStyle Solid Color Green attribl Setrill Flagi true attribl LineFlag true FloatingBarPlot thePlotl new FloatingBarPlot pTransforml Datasetl 0 75 attribl OhartObj JUSTIFY CENTER thePlot1 SetBarOrient ChartObj HORIZ DIR thePlotl BarShapeOption ChartObj CYLINDER3D chartVu AddChartObject thePlot1 Visual Basic Dim nnumpnts As Integer 18 Dim numgroups As Integer 2 Dim xl nnumpnts 1 As Double Dim yl numgroups 1 nnumpnts 1 As Double xl 0 6 yl 0 0 20 siil 0L 5312 Ero 5 yl 0 1 Q yl 1 1 4 xl 5 SLP 2 St 2 10 xl 3 lt 4 yli0 3 9 yil 3 2 Group Plot Objects 269 Dim Datasetl
132. 14 06 5 00 6 00 7 00 8 00 9 00 Time of Day 12 Noon to 12 Midnight 10 00 Each scatter plot symbol in a graph can have an individually assigned color and size Scatter plots ScatterPlots ScatterPoints SimpleScatter Plot This class is a subclass of the SimplePlot class and it displays simple datasets in a scatter plot format where each data point is represented using a symbol The class will work with 27 D data using a constant z value set using the associated datasets ImplicitZV alue property or 3D data where each data point 1s represented using individual x y and z datapoints 48 Class Architecture i Theoretical vs Experimental Data S S nd no yom ejqeanseepw eo MBAs 1000 employees Energy Companies a Software Companies Predicted Any combination of plots can be combined together in the same chart Pipeline plot SimpleLinePlots PipelineAndScatterPlot PipeLinePlot This class is a subclass of the SimplePlot class and it displays simple datasets in a line plot format Data points are represented using a sphere and are connected using cylinder The class will work with 2 2 D data using a constant z value set using the associated datasets ImplicitZV alue property or 3D data where each data point is represented using individual x y and z datapoints Legend Classes LegendItem BubblePlotLegendItem Legend StandardLegend BubblePlotLegend Class Architecture 49 Legends pro
133. 174 175 180 181 182 189 190 191 198 199 200 204 205 206 208 213 214 215 216 217 221 222 223 224 226 227 230 233 234 235 236 238 239 240 243 244 245 250 251 254 255 257 258 261 262 267 268 269 270 271 272 274 275 277 278 279 280 283 285 287 288 290 291 292 297 298 300 301 303 304 306 307 317 319 323 324 326 327 330 331 332 334 335 340 341 344 345 346 347 351 353 354 357 358 359 365 367 375 376 379 380 385 386 387 389 390 391 398 399 404 407 408 409 410 413 421 434 435 442 456 463 464 465 466 467 468 471 475 476 477 478 480 481 482 485 486 ChartPlot 28 29 61 63 149 150 156 219 225 228 231 236 241 248 252 255 259 263 264 272 275 280 285 289 293 295 298 301 304 308 313 355 357 358 361 373 374 381 471 481 482 485 ChartPrint 54 61 413 414 415 416 417 418 419 420 ChartScale 17 18 61 105 107 ChartShape 51 61 401 402 403 404 408 409 410 ChartSymbol 51 61 351 354 ChartText 50 61 149 194 195 200 206 330 331 351 354 355 381 382 383 384 385 386 387 389 390 391 392 395 398 472 ChartTitle 50 61 330 381 387 388 389 390 391 435 442 451 455 ChartView 6 8 9 10 12 14 20 52 54 59 61 66 72 75 80 89 93 96 102 143 144 145 147 149 150 151 152 153 154 155 157 161 173 174 180 181 190 19
134. 2 5 number of x values numberDatapoints numberColumns 6 number of y values for each x value numberGroups numberRows 3 248 Group Plot Objects This would be the ROW_MAJOR format if the data were stored in a CSV file Example program segments presented in this documentation are not complete programs and contain uninitialized and or undefined objects and variables Do not attempt to copy them into your own program Refer to the referenced example program that the code is extracted from Arrow Plots Class ArrowPlot GraphObj ChartPlot GroupPlot ArrowPlot The ArrowPlot class is a subclass of the GroupPlot class It displays a collection of arrows as defined by the data in a group dataset The position size and rotation of each arrow in the collection is independently controlled The number of groups of the group dataset must be three When used with a 2 2 D dataset the position of the each arrow with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property is not used When an arrow plot is attached to a 3D dataset each arrow is not restricted to a z axis plane and can traverse 3D space unrestricted Group Plot Objects 249 s j gt ep ee mU e et gt e gt gt gt 2 8 10 Meters Arrow plot ScatterPlots ArrowChart ArrowPlot constructor Visual B
135. 261 262 268 269 270 272 274 275 278 280 291 292 297 298 304 308 Chart object attributes 13 18 Chart titles 50 61 330 381 387 388 389 390 391 435 442 451 455 ChartAttribute 18 19 20 61 162 163 164 165 166 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 242 243 244 249 251 253 254 256 257 258 260 261 262 263 265 268 269 270 272 273 274 275 276 277 278 280 281 283 284 286 287 288 289 290 291 292 293 294 295 296 298 299 300 302 305 306 307 308 309 310 311 315 317 318 354 361 362 364 365 366 372 373 374 375 376 377 378 379 380 403 404 409 435 442 465 467 ChartCalendar 15 16 19 26 50 54 55 61 63 73 74 75 76 77 78 79 80 81 94 95 96 97 98 99 100 101 102 103 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 141 147 148 182 187 189 190 191 204 233 234 235 236 258 259 266 270 271 274 275 277 278 279 280 287 288 297 298 300 301 303 304 346 395 396 451 456 475 ChartImage 51 61 161 401 405 406 407 408 441 443 ChartLabel 50 61 381 392 490 Index ChartObj 61 64 69 72 75 76 77 80 81 87 90 94 96 97 99 102 103 115 121 123 124 125 128 129 130 131 132 133 134 136 137 138 139 140 141 144 147 148 150 151 158 162 163 164 165 166 173
136. 392 393 394 398 399 469 470 OHLCBarPlot 29 40 61 247 298 299 300 301 OHLCPlot 29 39 61 229 247 295 296 297 298 299 350 Open High Low Close bar plots 29 40 61 247 298 299 300 301 Open High Low Close plots 29 39 61 229 247 295 296 297 298 299 350 Index 491 Physical coordinates 17 18 20 22 61 105 107 108 117 128 157 160 161 163 167 169 171 175 177 220 225 228 229 232 237 242 249 253 256 260 263 265 273 276 281 286 289 293 296 299 302 305 309 315 321 322 325 333 338 341 342 357 358 361 362 383 384 388 392 393 394 395 396 397 402 405 406 PhysicalCoordinates 17 18 20 22 61 105 107 108 117 128 157 160 161 163 167 169 171 175 177 220 225 228 229 232 237 242 249 253 256 260 263 265 273 276 281 286 289 293 296 299 302 305 309 315 321 322 325 333 338 341 342 357 358 361 362 383 384 388 392 393 394 395 396 397 402 405 406 Pie charts 28 42 61 361 362 365 367 381 PieChart 28 42 61 361 362 365 367 381 Plot object classes 28 29 61 63 149 150 156 219 225 228 231 236 241 248 252 255 259 263 264 272 275 280 285 289 293 295 298 301 304 308 313 355 357 358 361 373 374 381 471 481 482 485 Point3D 55 58 59 61 66 68 69 72 81 82 83 84 85 115 116 147 148 155 156 165 221 222 223 224 226 227 230
137. 5 new ChartCalendar 1996 ChartObj SEPTEMBER 5 new ChartCalendar 1996 ChartObj OCTOBER 5 new ChartCalendar 1996 ChartObj NOVEMBER 5 double yData 10 22 33 44 55 46 33 25 14 9 double zvalue 0 0 double depthvalue 1 0 TimeSimpleDataset dataset new TimeSimpleDataset Sales xData yData zvalue depthvalue TimeCoordinates simpleTimeScale new TimeCoordinates simpleTimeScale AutoScale dataset Visual Basic Dim xData As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 New ChartCalendar 1996 ChartObj MARCH 5 New ChartCalendar 1996 ChartObj APRIL 5 New ChartCalendar 1996 ChartObj MAY 5 New ChartCalendar 1996 ChartObj JUNE 5 _ New ChartCalendar 1996 Chart0b JULY 95 New ChartCalendar 1996 ChartObj AUGUST 5 _ New ChartCalendar 1996 ChartObj SEPTEMBER 5 New ChartCalendar 1996 ChartObj OCTOBER 5 New ChartCalendar 1996 ChartObj NOVEMBER 5 Dim yData As Double 10 22 33 44 55 46 33 25 14 9 Dim zvalue As Double 0 0 Dim depthvalue As Double 1 0 Dim dataset As TimeSimpleDataset _ New TimeSimpleDataset Sales xData yData zvalue depthvalue Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale AutoScale dataset Scaling and Coordinate Systems 131 You can control the tightness of the auto scale values about the dataset values using other versions of
138. 5 361 362 364 366 434 442 464 467 485 492 Index SimpleDataset3D 14 15 19 61 63 64 69 70 71 72 81 144 219 220 223 224 243 SimpleLineMarkerPlot 42 44 61 219 241 242 243 244 329 SimpleLinePlot 42 46 61 219 220 221 222 223 224 228 327 329 349 435 442 SimplePlot 12 28 42 44 45 46 47 48 51 52 53 61 81 149 219 225 228 231 237 241 250 253 257 260 264 266 282 286 296 361 SimpleRibbonPlot 45 61 219 225 227 SimpleScatterPlot 42 47 61 219 236 237 238 239 240 329 Stacked bar plots 29 36 61 247 301 302 303 304 350 Stacked line plots 29 41 61 242 247 304 305 307 308 309 350 Stacked ribbon plots 29 40 308 310 311 StackedBarPlot 29 36 61 247 301 302 303 304 350 StackedLinePlot 29 41 61 242 247 304 305 307 308 309 350 StackedRibbonPlot 29 40 308 310 311 Standard legends 48 49 61 371 372 375 StandardLegend 48 49 61 371 372 375 String axis labels 26 27 61 193 206 208 215 478 479 String labels 50 61 208 381 392 395 396 397 398 399 StringAxisLabels 26 27 61 193 206 208 215 478 479 StringLabel 50 61 208 381 392 395 396 397 398 399 Symbols 51 61 351 354 Text classes 50 61 149 194 195 200 206 330 331 351 354 355 381 382 383 384 385 386 387 389 390 391 392 395 398 472 Tick mark class 55 56 61 TickMark 55 56 61 Time auto scaling 1
139. 6 19 58 61 63 87 88 89 90 91 92 94 99 242 249 250 251 253 255 256 260 261 262 263 265 267 269 273 276 281 282 284 286 289 291 292 293 296 299 302 305 306 307 309 477 478 485 GroupDataset3D 14 16 19 61 63 64 90 91 92 93 GroupPlot 12 28 29 61 81 149 247 248 252 255 259 263 264 272 275 276 280 285 289 293 295 298 301 304 305 308 Histogram plots 29 36 61 247 280 281 283 284 HistogramPlot 29 36 61 247 280 281 283 284 Image objects 51 61 161 401 405 406 407 408 441 443 Legend 48 49 61 150 371 381 Legend classes 48 49 61 150 371 381 Legend items 48 49 61 373 374 Legendltem 48 49 61 373 374 Line gap plots 29 37 61 247 285 286 287 288 Line marker plots 42 44 61 219 241 242 243 244 329 Line plots 42 46 61 219 220 221 222 223 224 228 327 329 349 435 442 Linear auto scaling 19 61 Linear axis 22 24 27 49 61 144 150 151 167 168 169 170 171 173 174 175 180 182 189 190 191 193 195 198 199 204 205 211 213 215 391 434 442 451 455 463 465 466 467 468 475 476 477 Linear scale 17 61 105 108 LinearAxis 22 24 27 49 61 144 150 151 167 168 169 170 171 173 174 175 180 182 189 190 191 193 195 198 199 204 205 211 213 215 391 434 442 451 455 463 465 466 467 468 475 476 477 LinearScale 17 61 105 108
140. 6 441 443 480 486 Calendar utilities 15 16 19 26 50 54 55 61 63 73 74 75 76 77 78 79 80 81 94 95 96 97 98 99 100 101 102 103 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 141 147 148 182 187 189 190 191 204 233 234 235 236 258 259 266 270 271 274 275 277 278 279 280 287 288 297 298 300 301 303 304 346 395 396 451 456 475 Candlestick plots 29 32 61 247 255 256 258 350 CandlestickPlot 29 32 61 247 255 256 258 350 Cartesian coordinates 17 18 58 61 105 108 114 117 118 119 120 121 122 123 124 125 127 140 141 142 144 152 153 164 165 173 174 180 198 199 223 224 230 243 250 251 261 267 269 282 284 291 292 306 307 316 318 323 324 334 335 339 340 343 344 345 346 362 364 366 434 442 464 466 467 477 478 479 CartesianCoordinates 17 18 58 61 105 108 114 117 118 119 120 121 122 123 124 125 127 140 141 142 144 152 153 164 165 173 174 180 198 199 223 224 230 243 250 251 261 267 269 282 284 291 292 306 307 316 318 323 324 334 335 339 340 343 344 345 346 362 364 366 434 442 464 466 467 477 478 479 Cell plots 29 33 61 247 255 259 260 261 262 CellPlot 29 33 61 247 255 259 260 261 262 Chart depth 59 60 115 145 146 147 148 165 221 222 227 230 235 239 243 244 250 251 257 258
141. 60 to 360 degrees of the text in the normal viewing plane Place text in is a time coordinate system TimeCoordinates by converting the time x position to milliseconds and using the milliseconds as the x position value See the special note Special mote about ChartText rotations at the beginning of this chapter ChartText example extracted from the example program MultiLinePlots Multilines Text Classes 385 10 15 Collector Emitter Voltage Multi ribbon plots MultiLinePlots MultiLines 1 C Create a transparent rectangle shape object and position it in 3D space double zdepth Datasetl ImplicitZValue Place an annotation at each line plot Font theLabelFont new Font Microsoft Sans Serif 10 FontStyle Bold ChartText currentLabell new ChartText pTransforml theLabelFont I b 50uA 15 5 y1 0 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabell ChartText currentLabel2 new ChartText pTransforml theLabelFont I b 100uA 15 5 yl1 1 85 41 zdepth Chartobj PHYS POS chartVu AddChartObject currentLabel2 ChartText currentLabel3 new ChartText pTransforml theLabelFont I b 150uA 15 5 yl 2 95 41 zdepth y ChartObj PHYS POS chartVu AddChartObject currentLabel3 ChartText currentLabel4 new ChartText pTransforml theLabelFont I b 200uA 15 5 y1 3 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel4 ChartText curren
142. 65 pTransform3 AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransform4 AutoScale Dataset4 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransform5 AutoScale Dataset5 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransforml SetGraphBorderDiagonal 0 35 15 9 0 65 pTransform2 SetGraphBorderDiagonal 0 35 15 9 0 65 pTransform3 SetGraphBorderDiagonal 0 35 15 9 0 65 pTransform4 SetGraphBorderDiagonal 0 35 15 9 0 65 pTransform5 SetGraphBorderDiagonal 0 35 15 9 0 65 Background background new Background pTransforml ChartObj GRAPH BACKGROUND Color White Background plotbackground new Background pTransforml ChartObj PLOT BACKGROUND Color White chartVu AddChartObject plotbackground ChartAttribute attribl new ChartAttribute Color Blue 2 DashStyle Solid ChartAttribute attrib2 new ChartAttribute Color Red 2 DashStyle Solid ChartAttribute attrib3 new ChartAttribute Color Green 2 DashStyle Solid ChartAttribute attrib4 new ChartAttribute Color Orange 2 DashStyle Solid ChartAttribute attrib5 new ChartAttribute Color Magenta 2 DashStyle Solid xAxis new LinearAxis pTransforml ChartObj X AXIS xAxis SetLineWidth 2 chartVu AddChartObject xAxis yAxisl new LinearAxis pTransforml ChartObj Y AXIS yAxisl SetAxisIntercept 0 0 yAxisl SetChartObjAttributes attribl axis color matches line color chartVu AddChartObject
143. 9 61 Time axis 22 26 27 49 61 167 168 182 187 189 190 191 194 200 202 204 205 211 213 215 463 475 476 477 Time axis labels 26 27 61 193 194 200 202 204 205 215 Time coordinates 17 18 58 61 105 108 115 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 147 152 162 182 187 189 190 191 204 213 214 221 222 226 227 233 234 238 239 254 257 258 266 270 271 274 275 278 279 287 288 297 303 331 332 384 397 451 455 475 476 477 479 480 Time labels 50 61 349 351 353 354 357 359 381 392 395 396 Time scale 17 61 105 108 Time Date group 3D datsets 14 16 19 61 63 64 99 100 101 103 104 Time Date group datsets 14 16 19 58 61 63 94 95 96 97 98 99 129 254 257 258 266 270 271 278 279 287 288 297 485 Time Date simple 3D datasets 14 15 16 19 61 63 64 77 78 79 80 81 219 Time Date simple datasets 14 15 16 19 58 61 63 72 73 74 75 76 77 80 129 130 131 132 133 134 136 139 140 219 221 222 226 227 233 234 238 239 331 332 476 477 485 486 TimeAxis 22 26 27 49 61 167 168 182 187 189 190 191 194 200 202 204 205 211 213 215 463 475 476 477 TimeAxisLabels 26 27 61 193 194 200 202 204 205 215 TimeCoordinates 17 18 58 61 105 108 115 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 147 152 162 182
144. AR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR 244 Simple Plot Objects Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 0 15 0 9 0 8 Set rotate parameters Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a simple line marker plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid Dim attrib2 As New ChartAttribute Color Red 1 DashStyle Solid attrib2 SetFillColor Color Red attrib2 SetFillFlag True attrib2 SetSymbolSize 15 Dim thePlotl As New SimpleLineMarkerPlot pTransforml Datasetl Chartobj CUBESD attribl attrib2 0 1 chartVu AddChartObject thePlot1 Add the following lines to the program segment above to add data point labeling to the line marker plot C Customize display of plot data point values thePlotl SetShowDatapointValue true NumericLabel modellabel new NumericLabel modellabel SetXJust ChartObj JUSTIFY CENTER modellabel SetYJust ChartObj JUSTIFY MIN Font modellabelfont new Font Microsoft Sans Serif 10 FontStyle Regular modellabel SetTextFont modellabelfont modellabel SetTextNudge 0 5 thePlotl SetPlotLabelTemplate modellabel Visual Basic Customize display of plot data point values thePlotl SetShowDatapointValue True Dim modellabe
145. Array 2 As SimpleDataset datasetsArray 0 datasetl datasetsArray 1 dataset2 datasetsArray 2 dataset3 Dim simpleScale As CartesianCoordinates New CartesianCoordinates simpleScale AutoScale datasetsArray There is a version of the multiple dataset auto scale routine that also specifies rounding mode parameters simpleScale AutoScale datasetsArray ChartObj AUTOAXES_FAR ChartObj AUTOAXES FAR Logarithmic Coordinate Scaling The previous examples assume that both the x and y scales are linear Ifthe x and or y scale are to be logarithmic then use the CartesianCoordinates constructor that has scale mode parameters Example of explicit scaling of three different logarithmic CartesianCoordinates objects C double xMin 1 double xMax 1000 double yMin 0 2 double yMax 2000 CartesianCoordinates logYScale new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE logYScale SetCoordinateBounds xMin yMin xMax yMax CartesianCoordinates logXScale 124 Scaling and Coordinate Systems new CartesianCoordinates ChartObj LOG SCALE ChartObj LINEAR SCALE logXScale SetCoordinateBounds xMin yMin xMax yMax CartesianCoordinates logXLogYScale new CartesianCoordinates ChartObj LOG SCALE ChartObj LOG SCALE logXLogYScale SetCoordinateBounds xMin yMin xMax yMax Visual Basic Dim xMin As Double 1 Dim xMax As Double 1000 Dim yMin As Double 0 2 Dim yMax As D
146. As ChartCalendar ByVal starttime As Long ByVal yl As Double _ ByVal dstop As ChartCalendar ByVal stoptime As Long ByVal y2 As Double _ ByVal nweektype As Integer C public TimeCoordinates ChartCalendar dstart long starttime double yi ChartCalendar dstop long stoptime double y2 int nweektype public TimeCoordinates ChartCalendar dstart long starttime double yi double zi ChartCalendar dstop long stoptime double y2 double z2 int nweektype TimeCoordinates constructor example for a 5 day week and 9 30 AM to 4 00 PM time of day range C long starttod 9 60 30 60 1000 msecs cooresponding to 9 30 AM long stoptod 16 60 60 1000 msecs cooresponding to 4 00 PM ChartCalendar dstart new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar dstop new ChartCalendar 1997 ChartObj JANUARY 5 double yl 0 0 double y2 55 0 TimeCoordinates stockTimeScale stockTimeScale new TimeCoordinates dstart starttod yl dstop stoptod y2 ChartObj WEEK 5D VB Dim starttod As Long 9 60 30 60 1000 msecs cooresponding to 9 30 AM Dim stoptod As Long 16 60 60 1000 msecs cooresponding to 4 00 PM 138 Scaling and Coordinate Systems Dim dstart As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim dstop As ChartCalendar New ChartCalendar 1997 ChartObj JANUARY 5 Dim yl As Double
147. As New GroupDataset Actual Sales xl yl Datasetl ImplicitDepthValue 0 1 Datasetl ImplicitZValue 0 5 pTransforml New CartesianCoordinates pTransforml SetScaleStartX 0 Transforml SetScaleStartY 0 IO pTransforml SetScaleStopxX 12 Transforml SetScaleStopY 7 IO prIransforml SetGraphBorderDiagonal 0 2 0 15 0 95 0 8 Dim graphbackground As New Background pTransforml ChartObj GRAPH BACKGROUND Color FromArgb 30 70 70 Color FromArgb 90 20 155 ChartObj Y AXIS chartVu AddChartObject graphbackground Set chart rotation Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 Dim attribl As New ChartAttribute Color Black 1 DashStyle Solid Color Green attribl SetFillFlag True attribl LineFlag True Dim thePlotl As New FloatingBarPlot pTransforml Datasetl 0 75 attribl ChartObj JUSTIFY CENTER thePlotl SetBarOrient ChartObj HORIZ DIR thePlotl BarShapeOption ChartObj CYLINDER3D chartVu AddChartObject thePlot1l Floating bar plot example that uses date time values as the floating bar endpoints extracted from the example program Bargraphs FloatingBars2 C int nnumpnts 18 270 Group Plot Objects int numgroups 2 double x1 new double nnumpnts ChartCalendar yl new ChartCalendar numgroups nnumpnts x1 0 6 yl 0 0 new ChartCalendar 2002 ChartObj JANUARY 1 yl 1
148. Axis New TimeAxis simpleTimeScale xAxisTickMarkFormat xAxis SetAxisTicksAttributes xAxisMinorTickLength xAxisMajorTickLength xAxisTickDirection Create the linear y axis Dim yAxis As LinearAxis New LinearAxis simpleTimeScale ChartObj Y AXIS Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis 8 Axis Labels AxisLabels NumericAxisLabels TimeAxisLabels StringAxisLabels Axis Labels Axis labels are numeric or text strings placed next to axis tick marks indicating the scale of the axis Axis labels are a separate class from the axis classes An axis class i e any class derived from Axis can exist independent of axis labels Many graphs use axes that do not have labels For example the y axis on the left side of a graph may have labels while an identical axis on the right hand side of the graph may not The axis label classes require a valid reference axis class and cannot exist independently There are five axis labels classes the AxisLabels abstract base class and concrete subclasses NumericAxisLabels TimeAxisLabels and StringAxisLabels Label Formats An axis label can take many forms The various axis label formats are divided between the axis labels classes in the following manner NumericAxisLabels The LinearAxis and LogAxis axis types use thi
149. AxisLabels The StringAxisLabels class extends the AxisLabels class adding extensive numeric The class will label the major tick marks of a linear axis with user defined strings StringAxisLabels constructor There is only one main constructor for StringAxisLabels objects Visual Basic Overloads Public Sub New _ ByVal baseaxis As Axis _ C public StringAxisLabel1s Axis baseaxis he baseaxis This is the axis the axis labels are for Other axis label properties font rotation and axis labels direction are automatically set These properties can be explicitly set if you need to override the automatically calculated values SetAxisLabels method Visual Basic Overloads Public Sub SetAxisLabels ByVal font As Font _ ByVal rotation As Double _ ByVal labdir As Integer _ ByVal labelends As Integer _ ByVal labickcolor As Color _ ByVal tickstrings As String ByVal numtickstringls As Integer _ C public void SetAxisLabels Font font double rotation int labdir int labelends Color labcolor stringi tickstringis int numtickstringls d SetAxisLabelsStrings method Visual Basic Public Sub SetAxisLabelsStrings ByVal tickstringls As String _ ByVal n As Integer C public void SetAxisLabelsStrings string tstringis int n Axis Labels 207 font rotation labdir labelends labcolor tickstrings The font object u
150. ByVal sender As Object ByVal e As System EventArgs Dim chartVu As ChartView Me If Not chartVu Is Nothing Then If printobj Is Nothing Then printobj New ChartPrint chartVu Else printobj PrintChartView chartVu End If printobj DoPrintDialog End If End Sub PrinterSetup This routine invokes the chart objects PrintPreviewItem method Public Sub PrintPreview ByVal sender As Object ByVal e As System EventArgs Dim chartVu As ChartView Me If Not chartVu Is Nothing Then If printobj Is Nothing Then printobj New ChartPrint chartVu 418 File and Printer Rendering Else printobj PrintChartView chartVu End If printobj PrintPreviewItem sender e End If End Sub PrintPreview This routine prints a chart by invoking the chart objects DocPrintPage method Public Sub PrintPage ByVal sender As Object ByVal e As System EventArgs Dim chartVu As ChartView Me If Not chartVu Is Nothing Then If printobj Is Nothing Then printobj New ChartPrint chartVu printobj DoPrintDialoq Else printobj PrintChartView chartVu End If printobj DocPrintPage sender e End If End Sub PrintPage ChartPrint example four ChartView objects to a single printed page extracted from the example program WebStatistics Form1 C ChartPrint printobj null private void InitializePrintChart double width 0 5 double height 0 5 double depth 0 0 ChartView components viewsAndVisitsl bandwidthUsa
151. CChart3D library is the ChartView class The ChartView class is derived from the Net System Windows Forms UserControl class It has the properties and methods of the underlying UserControl class Follow the following steps in order to incorporate the QCChart3D classes into your program This is not the only way to add charts to an application In general any technique that works with UserControl derived classes will work We found the technique described below this to be the most flexible Visual Basic for Net If you do not already have an application program project create one using the Visual Studio project wizard File New Project Visual Basic Projects Windows Application On the left select a project type of Visual Basic Projects Give the project a unique name our version of this example is UserChartExample1 You will end with a basic Form based application For purposes of this example the chart will placed in the initial default form e Adda User Control class to the project Project Add User Control Enter a class name of UserChartControll We choose UserChartControl2 to keep it from conflicting with our own UserChartControll example e Right click on Reference in the Solution Explorer window and select Add Reference Browse to the Quinn Curtis DotNet lib subdirectory and select the QCChart3DNet DLL 426 Using QCChart3D for Net to Create Windows Applications View the UserChartControl2 vb code Change the Inherit
152. Chart3D for Net to Create Web Applications 453 folder The DLL file size should be quite small since the underlying QCChart3DNet DLL file is not included as part of the WindowsControlLihraryl DLL When Internet Explorer views a web page that properly references the WindowsControlLihrary1 DLL and its internal UserControll user control it will download just that DLL Internet Explorer will not attempt to download the QCChart3DNet DLL and will look to the system GAC for it instead Visual Basic Create a Windows Control Library and User Control You need to create a ChartView derived user control that defines your chart and includes all of the properties that you need for interacting with your chart This is done almost exactly the same as described in the previous chapter Using QCChart3D for Net to Create Windows Applications The difference is that instead of creating a Net application resulting in an exe file you can run from Windows you are instead creating a Windows Control Library which results in a DLL file What you end up with is a user control not an executable program The user control must be referenced in a specific way in an HTML file before you can display it The basic steps for creating the ChartView derived control are described below Start by creating a Windows Control Library project using the Visual Studio project wizard File New Project Visual Basic Projects Windows Control Libary On the left select a pro
153. ChartText pTransforml theLabelFont I b 200uA 15 5 yl 3 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel4 Dim currentLabel5 As New ChartText pTransforml theLabelFont I b 250uA 15 5 yl 4 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel5 Dim currentLabel6 As New ChartText pTransforml theLabelFont I b 300uA 15 5 eil 85 1 zdepth ChartObj PHYS8 POS chartVu AddChartObject currentLabel6 Text Classes 387 Dim currentLabel7 As New ChartText pTransforml theLabelFont I b 350uA _ 15 5 Vile 85 1 xdepth Chartdbj PHrs POS chartVu AddChartObject currentLabel 7 Dim regionLabel As New ChartText pTransforml _ theLabelFont Linear ControlChars Lf Region 4 0 40 _ zdepth ChartObj PHYS POS chartVu AddChartObject regionLabel ChartText time coordinates example extracted from the example program MiscCharts LineGap C Font theLabelFont new Font SansSerif 14 FontStyle Bold ChartText chartLabell new ChartText pTransforml theLabelFont Sales xValues 1 GetCalendarMsecs groupBarData 1 1 ChartObj PHYS POS chartLabell SetColor Color White chartLabell SetYJust ChartObj AXIS MIN chartVu AddChartObject chartLabell Visual Basic Dim theLabelFont As New Font SansSerif 14 FontStyle Bold Dim chartLabell As New ChartText pTransforml theLabelFont Sales _ xValues 1 GetCalendarMsecs
154. Color Red DashStyl attribl Set Define OH As New ChartAttribute Color Red 1 DashStyle Solid Color Red hAttrib As New ChartAttribute Color Red 1 _ le Solid Color LimeGreen Ir le Solid Color Yellow FillFlag True LC plot Group Plot Objects 301 Dim thePlotl As New OHLCBarPlot pTransforml Datasetl _ ChartCalendar GetCalendarWidthValue ChartObj DAY_OF_YEAR 0 75 _ attribl openHighAttrib closeHighAttrib thePlotl SetFastClipMode ChartObj FASTCLIP X chartVu AddChartObject thePlot1 Note how the ChartCalendar GetCalendarWidthValue method calculates the width of the bars as a function of time in this case a width of 0 75 days Stacked Bar Plots Class StackedBarPlot GraphObj ChartPlot GroupPlot StackedBarPlot The StackedBarPlot class extends the GroupPlot class and displays data in stacked bar format In a stacked bar plot each group is stacked on top of one another each group bar a cumulative sum of the related group items before it When used with a 2 2 D dataset the position of the each bar with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the bar When a stacked bar plot is attached to a 3D dataset each bar is not restricted to a z axis plane and can traverse 3D space unrestricted The individual elements of the bar plot are normally 3D bars but you can also s
155. DataToolTip CustomDataToolTip ChartZoom RotateTransform3D DataCursor MoveData ChartAttribute ChartPrint BufferedImage System Windows Forms UserControl ChartView RotateButtonUserControl Rectangle3D Rectangle2D Point3D Poin2D GroupPoint3D GroupPoint2D DoubleArray DoubleArray2D BoolArray Polysurface Polygon3D PolygonList ObjectPolygonList GraphObj TickMark Axis LinearAxis LogAxis TimeAxis ChartText ChartTitle AxisTitle ChartLabel NumericLabel BarDatapointValue TimeLabel StringLabel AxisLabels NumericAxisLabels TimeAxisLabels StringAxisLabels Grid LegendItem BubblePlotLegendItem Legend StandardLegend BubblePlotLegend ChartPlot SimplePlot SimpleLinePlot SimpleBarPlot SimpleScatterPlot SimpleLineMarkerPlot SimpleRibbonPlot PipeLinePlot GroupPlot ArrowPlot BubblePlot CandlestickPlot CellPlot ErrorBarPlot FloatingBarPlot GroupBarPlot HistogramPlot LineGapPlot MultiLinePlot OHLCPlot OHLCBarPlot StackedBarPlot StackedLinePlot PieChartBase PieChart Background Wall3D Chartlmage ChartShape ChartSymbol Marker ChartZoom 62 Class Architecture 3 Chart Datasets ChartDataset SimpleDataset SimpleDataset3D ContourDataset TimeSimpleDataset TimeSimpleDataset3D GroupDataset GroupDataset3D TimeGroupDataset TimeGroupDataset3D The dataset classes organize the numeric data associated with a plot object Plot objects are chart objects derived from the ChartPlot class There a
156. Dataset Sales xl yl Dim zvalue As Double 0 1 Dim depthvalue As Double 0 4 Dim Dataset2 As New TimeSimpleDataset Expenses x1 y2 zvalue depthvalue Example of creating a simple time datasets from a CSV file C Default time date format is M dd yyyy CSV csvDataFile new CSV Create a dataset based on a previously saved csv file TimeSimpleDataset Datasetl new TimeSimpleDataset csvDataFile LineFill Datasetl csv 0 0 Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 Write out dataset as a CVS file Chart Datasets 77 Datasetl1 WriteTimeSimpleDataset csv LineFill Datasetl csv Read it back in just as a test Dataset1 ReadTimeSimpleDataset csv LineFill Datasetl csv 0 0 Visual Basic Default time date format is M dd yyyy Dim csvDataFile As CSV New CSV Create a dataset based on a previously saved csv file Dim Datasetl As TimeSimpleDataset _ New TimeSimpleDataset csvDataFile LineFill Datasetl csv 0 0 Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 Write out dataset as a CVS file Datasetl WriteTimeSimpleDataset csvDataFile LineFill Datasetl csv Read it back in just as a test Datasetl ReadTimeSimpleDataset csvDataFile LineFill Datasetl csv 0 0 Class TimeSimpleDataset3D ChartObj ChartDataset SimpleDataset TimeSimpleDataset TimeSimpleDataset3D The TimeSimpleDataset3D class r
157. EE EE Ee 107 World Coordinates nannte innen 107 Working COOL Gates soe rogas ee Ehen ai 107 Physical Coole Sacs remi pode m eh 107 Normalized RENE 108 Chart Scaling and the Net Drawing2D Matrix esee 108 Important numeric Consideranons ios toc eee RE Deo on eh eres aides 109 Value Hitman nen 109 Bad value CHECKING si een 109 Taking the logarithm of 0 or a negative number eee 109 Positioning the Plot Area Volume in Graph Area Volume 109 Rotating the Chart in the Graph Area Volume eese 115 AbsRotateCoordinateS ystems u 115 R lRotateCoordinate S ystems solde pop is ma eu 116 RelRotdte C oordmate Systems os BI 116 Abs Translate Coordinates VsteTri rasen aee eae e een ee npe e uad 116 Linear and Logarithmic Coordinate Scaling eene 117 Class CartesianC oordinates doe In 117 Linear Coordinate Scalig soe teer iraq ek 117 Logarithmic Coordinate Scaling uam 123 Coordinate Systems using times and dates ssssssssssseeeeeee 125 The hartCalemd DR MCCC 125 Sys 7 Day Work Weeks ea 126 Non EE 126 Non Uniformity of Date Time Tick Marks eere 127 Class Timi Coordinates aan eroe se S n een Dee 128 viii Table of Contents Miscellaneous Coordinate System Topics sese 140 Inverted Coordinate Systems u dete seid eo d ote a dose quibus ul 140 Bc Te art VIG PEE 143 Setting the Relative Depth of the Chart View
158. ET double yAxisMajorTickLength 10 int yAxisTickDirection ChartObj AXIS MAX yAxis SetAxisIntercept yAxisIntercept yAxis SetAxisIntercept2yAxisIntercept2 yAxis SetAxisTicks yAxisOrigin yAxisLogFormat yAxisMinorTickLength yAxisMajorTickLength yAxisTickDirection Visual Basic Place the y axis on the right side of the graph with tick marks point towards the right Dim yAxisIntercept As Double 1000 yAxisOrigin Major tick marks at 0 2 2 20 200 and 2000 Dim yAxisOrigin As Double 0 2 In addition to major tick marks labels flagged for some minor tick marks Dim yAxisLogFormat As Integer 1 Dim yAxisMinorTickLength As Double 5 182 Axes Dim yAxisMajorTickLength As Double 10 Dim yAxisTickDirection As Integer ChartObj AXIS MAX yAxis SetAxisIntercept yAxisIntercept yAxis SetAxisTicks yAxisOrigin yAxisLogFormat yAxisMinorTickLength _ yAxisMajorTickLength yAxisTickDirection Date Time Axes The date time axis is used in combination with a TimeCoordinates physical coordinate system The axis major and minor tick marks correspond to the common date time divisions of second minute hour day week month and year The date time axes supported with this software are very complex because they take into account the varying number of days in months and years The axes also take into account non continuous date time scales where a 5 day week is used or where a full day consists of a specifi
159. Examples OHLCChart C CHART 1 top of chart create dataset for ohlc data double zvalue 0 5 Group Plot Objects 297 double depthvalue 0 2 TimeGroupDataset Datasetl new TimeGroupDataset Stock Data xValues stockPriceData zvalue depthvalue define coordinate system for stock data pTransforml new TimeCoordinates pTransforml SetWeekType weekmode pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR position chart at top of graph area pTransforml SetGraphBorderDiagonal 0 1 15 90 0 55 Set rotational parameters Point3D protate new Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 OHLCPlot thePlotl new OHLCPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj DAY OF YEAR 0 75 attribl thePlotl SetFastClipMode ChartObj FASTCLIP X chartVu AddChartObject thePlot1 Visual Basic CHART 1 top of chart create dataset for ohlc data Dim zvalue As Double 0 5 Dim depthvalue As Double 0 2 Dim Datasetl As New TimeGroupDataset Stock Data xValues stockPriceData zvalue depthvalue define coordinate system for stock data pTransforml New TimeCoordinates pTransforml SetWeekType weekmode pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR position chart at top of graph area pTransf
160. Get End Return mainTitle TextString Get Set ByVal Value As String mainTitle TextString value Me UpdateDraw End Set End Property lt summary gt Set Get the yMax lt summary gt Public Property YMax As Double Get End Return pTransforml GetScaleStopY Get Set ByVal Value As Double End pTransforml SetScaleStopY value yAxis CalcAutoAxis Me UpdateDraw Set Using QCChart3D for Net to Create Web Applications 457 End Property End Class Once you can compile the project copy the resulting WindowsControlLibrary1 DLL file to the desired folder on your web site In our example we copied the DLL to the http quinn curtis com UserControlTest folder The DLL file size should be quite small since the underlying QCChart3DNet DLL file is not included as part of the WindowsControlLihrary1 DLL When Internet Explorer views a web page that properly references the WindowsControlLihrary1 DLL and its internal UserControll user control it will download just that DLL Internet Explorer will not attempt to download the QCChart3DNet DLL and will look to the system GAC for it instead Create the HTML File That Displays the User Control Create an HTML file however you normally would do it You will need to add HTML text to it using some sort of HTML editor You will find IEQCChart3D htm our example in the WindowsControlLibrary1 folder The control is referenced in the HTML file as
161. HR een 11 QOCChart3D for Net Class Summary ieh 13 Char Window Classes u sei N 14 Data Class ES EE 14 Se ERS erweisen 17 Coordinate Transform Classes near Ei 17 INAL DAD EE 18 Auto Scaling Classes Esel 19 Chart Object Classes an uses ee 20 TS SCIL MM ERERRH EEE 22 Axis Tabel Classes 26 Chart PIOt Classe c RM E es een 2j Group Plot Classes merrnin orint A 29 Pie Chart Elasses anal ea 41 Simple Plot Classes 42 EE 48 Grid Classes sr ee kleben 49 Chart MEO INCEST 50 Miscellaneous Chart Classes au an elle Re 51 Mouse Interaction Classes aa si Rn 52 File and Printer Rendering Classes na MIR 54 Miscellaneous Utility Classes neuen 54 Differences between the QCChart2D and QCChart3D Ab 57 Table of Contents Class Hierarchy of OC Chatt3D s eso U HER RR 61 E OR 63 2 5 D Datasets and 3D Datasets nass RR ln 63 Simples rc D alae Dae re een 64 Glass Simple Datasets nisso Rails 64 Class SummpleDataset3D secessit tee ia airy aus 69 simple Date lime Datasets neu u T2 RE rue ER E EE 72 Class Limiesimple Datase DDr educa e aret o ea cei ue e i ubi m events 77 ConteurDataser Dalasel ee ee 81 Class Contour Datasets une epist iste dees 81 Numeric Group Daaset sn een isses 87 Glass ENTREE 87 Class Group Datasets Dinner u 90 DateTime Group Dataset aa ea unse 94 Glass metten 94 Class Time Group Datasets D nase ea 99 Scaling and Coordinate Systems un anna 105 Plot area volume and the graph area volume nen 105 EE teren 107 K
162. HWEEK double xAxisMinorTickLength 5 double xAxisMajorTickLength 10 int xAxisTickDirection ChartObj AXIS MIN TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed TimeAxis xAxis new TimeAxis simpleTimeScale xAxisTickMarkFormat xAxis SetAxisIntercept axisintercept xAxis SetAxisIntercept2 axisintercept2 xAxis SetAxisTicksAttributes xAxisMinorTickLength xAxisMajorTickLength xAxisTickDirection Create the linear y axis LinearAxis yAxis new LinearAxis simpleTimeScale ChartObj Y AXIS Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Axes 191 Visual Basic Define a Time coordinate system Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY 5 Dim yMin As Double 0 Dim yMax As Double 105 Dim xAxisTickMarkFormat As Integer ChartObj TIMEAXIS MONTHWEEK Dim xAxisMinorTickLength As Double 5 Dim xAxisMajorTickLength As Double 10 Dim xAxisTickDirection As Integer ChartObj AXIS_MIN Dim simpleTimeScale As TimeCoordinates simpleTimeScale New TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed Dim xAxis As Time
163. If the data series are plotting using the same scale it is difficult do see the correlation or lack of in the data A better solution is to create a unique scale for each data series with associated axes and plot each data series with respect to its own scale All of the plots will overlay the same area of the graph Many advanced charting packages do not support more than one coordinate system per graph while most others have some fixed limit such as 2 4 or 8 scales per graph The number of coordinate systems for a graph can be as large as the number of data series plotted in the graph Charts can have hundreds of data series at once therefore a flexible charting package needs to allow for an equal number of simultaneous coordinate systems e Fourth a well constructed chart often displays more than just data Other common chart objects include legends arbitrary text annotations bitmap images geometric shapes titles data markers cursors and grids A chart can contain zero or more of these objects It may contain 100 of one type 5 of another type and 1 of a third QCChart3D for Net contains no limits restricting the number of instances of a given chart object in a graph and no limit on the total number of chart objects in a graph Class Architecture 13 e Fifth an end user needs to interact with the graph using the mouse and or keyboard The QCChart3D architecture includes classes that implement the Net System EventHandler delegate
164. In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method Example of creating a group time datasets C int nNumPnts 50 nNumGroups 4 int weekmode ChartObj WEEK 5D ChartCalendar xValues new ChartCalendar nNumPnts double stockPriceData new double nNumGroups nNumPnts double minval 0 0 maxval 0 0 int 3j ChartCalendar currentdate new ChartCalendar Chart Datasets 97 ChartCalendar SetTOD currentdate 0 0 1 currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode Make sure not to start on a weekend xValues 0 ChartCalendar currentdate Clone currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode stockPriceData 3 0 25 close stockPriceData 0 0 db open stockPriceData 1 0 26 high stockPriceData 2 0 24 low for i 1 i lt nNumPnts i xValues i ChartCalendar currentdate Clone stockPriceData 3 i stockPriceData 3 i 1 3 0 52 ChartSupport GetRandomDouble close stockPriceData 0 i stockPriceData 3 i 2 0 5 ChartSupport GetRandomDouble open minval Math Min stockPriceData 3 i stockPriceData 0 i maxval Math Max stockPriceData 3 i stockPriceData 0 i stockPriceData l i maxval 1 5 ChartSupport GetRandomDouble high stockPriceData 2 i minval 1 5 ChartSupport GetRandomDouble low currentdate ChartCalendar CalendarDaysA
165. NEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 75 Force starting values of x and y scale to 0 pIransforml SetScaleStartX 0 pIransforml SetScaleStarty 0 Set rotate parameters pTransforml AbsRotateCoordinateSystem New Point3D 20 30 0 chartVu SetFractionalZViewportDepth 0 1 Define attributes for multi line plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid Dim attribArray numGroups As ChartAttribute For i 0 To numGroups 1 attribArray i CType attribl Clone ChartAttribute Next i Define a multi line plot Dim thePlotl As New MultiLinePlot pTransforml Datasetl attribArray chartVu AddChartObject thePlot1 Group Plot Objects 293 Class MultiRibbonPlot GraphObj ChartPlot GroupPlot MultiRibbonPlot The MultiRibbonPlot class extends the GroupPlot class and displays group data in multi ribbon plot format A group dataset with eight groups will display eight separate multi ribbon plots The y values for each group of the dataset are the y values for each line in the plot Each line plot share the same x values of the group dataset This group plot only works with a 2 D dataset The position of all of the ribbons of the multi ribbon with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets
166. NTFORMAT The value of a label is multiplied by 100 and the character Da is appended on the end of the label EXPONENTFORMAT The value of a label is multiplied by 100 and the character Du is appended on the end of the label CURRENCEYBUSINESSFORMAT A character is appended to the front of the label and the values are abbreviated the same as the BUSINESSFORMAT CURRENCEYFORMAT A character is appended to the front of the label NumericAxisLabels constructor There is only one main constructor for NumericAxisLabels objects Visual Basic Overloads Public Sub New ByVal baseaxis As Axis C public NumericAxisLabels Axis baseaxis baseaxis This is the axis the axis labels are for Axis Labels 197 Other axis label properties font rotation numeric format axis labels direction and numeric precision are automatically set These properties can be explicitly set if you need to override the automatically calculated values SetAxisLabels method Visual Basic Overloads Public Sub SetAxisLabels _ ByVal font As Font _ ByVal rotation As Double _ ByVal labdir As Integer _ ByVal decimalpos As Integer _ ByVal labelends As Integer _ ByVal labcolor As Color C public void SetAxisLabels Font font double rotation ine labcir int decimalpos int labelends Color jabeolor SetAxisLabelsFormat method Visual Basic Public Sub SetAxisLabe
167. OS chartVu AddChartObject class2Label class2AverageLabel New NumericLabel pTransforml subheadFont class2Average 0 9 0 55 ChartObj NORM GRAPH POS ChartObj DECIMALFORMAT 1 chartVu AddChartObject class2AverageLabel Text Classes 399 21 Adding Lines Shapes Images and Arrows to a Chart ChartShape Arrow ChartImage It is not possible to take into account every possible graphical object that a programmer wants to add to a graph Specialized applications require specialized objects Rather than create a large group of classes that duplicate the functions of the Arc2D Rectangle3D and other classes a generalized class has been created ChartShape which can place and display in a chart any object that can be expressed as a System Drawing Drawing2D GraphicsPath The Arrow defines an arrow shape useable with the ChartShape class The Arrow class creates the arrows in the ArrowPlot class and it can also place individual arrows in a chart The class creates a base arrow with a custom arrowhead and shaft size Scale rotate and position the arrow in a chart The ChartImage class places a System Drawing Image object anywhere in a chart It can be a small element of the chart inside or outside of the plot area volume or it can be sized to fill the plot area volume or graph area volume and used as a background object Important note about rotations You will find that sometimes you will want to position a shape or image that is d
168. Obj AUTOAXES FAR xAxis CalcAutoAxis yAxis CalcAutoAxis Redraw the chart using the rescaled coordinate system and axes chartVu UpdateDraw Visual Basic Dim Datasetl As TimeSimpleDataset New TimeSimpleDataset Sales xl yl Dim simpleTimeCoordinates As TimeCoordinates New TimeCoordinates simpleTimeCoordinates AutoScale Datasetl ChartObj AUTOAXES FAR _ ChartObj AUTOAXES FAR Dim chartVu As ChartView New ChartView Create the time axis x axis is assumed Dim xAxis As TimeAxis New TimeAxis simpleTimeCoordinates Create the linear y axis Dim yAxis As LinearAxis New LinearAxis simpleTimeCoordinates ChartObj Y AXIS The following code would be in the code handling the rescale event Rescale chart based on a modified Datasetl datset simpleTimeCoordinates AutoScale Datasetl ChartObj AUTOAXES FAR _ ChartObj AUTOAXES FAR xAxis CalcAutoAxis yAxis CalcAutoAxis Redraw the chart using the rescaled coordinate system and axes chartVu UpdateDraw 12 When I use the auto scale and auto axis routines my semi log chart has the log axis scaled using powers of 10 1 10 100 1000 etc as the starting and ending values or as the major tick interval for labeling How do I make my log graphs start at 20 and end at 50 000 with major tick marks at 20 200 2000 and 20000 The auto scale routines for logarithmic coordinate systems will always select a power of 10 for the minimum and maximum val
169. Object xAxis1 LinearAxis yAxisl new LinearAxis pTransforml ChartObj Y AXIS yAxisl SetColor Color Red chartVu AddChartObject yAxisl NumericAxisLabels xAxisLabl new NumericAxisLabels xAxisl xAxisLabl SetColor Color Black chartVu AddChartObject xAxisLabl NumericAxisLabels yAxisLabl new NumericAxisLabels yAxisl Using QCChart3D for Net to Create Web Applications 435 yAxisLabl SetColor Color Red chartVu AddChartObject yAxisLabl ChartAttribute attribl new ChartAttribute Color Red 3 DashStyle Solid SimpleLinePlot thePlotl new SimpleLinePlot pTransforml Datasetl attribl chartVu AddChartObject thePlotl Font theTitleFont new Font SansSerif 18 FontStyle Bold String GraphTitle XData XDataString ChartTitle mainTitle new ChartTitle pTransforml theTitleFont GraphTitle mainTitle AddNewLineTextString YData YDataString mainTitle SetTitleType ChartObj CHART HEADER mainTitle SetTitlePosition ChartObj CENTER GRAPH mainTitle SetColor Color Black chartVu AddChartObject mainTitle return chartVu region Web Form Designer generated code Modify the Page_Load method that was included by default when the behind code page was created In the example below parameters that were appended to the ASP page request are retrieved using the Request Params Get method The values define the size and data values of the graph This is just one way to pass data
170. Objects attrib Specifies the attributes line and fill color for the floating bars nbarjust Specifies the justification with respect to the independent data value Use one of the justification constants JUSTIFY MIN JUSTIFY CENTER JUSTIFY MAX An individual bar in a floating bar plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Scheduling charts often use floating bars where the starting and ending values of the bar represent the duration of some aspect of a project The default use of the floating bar class assumes that the ends of the bars are floating point values not date time values Yet the scheduling chart often uses date time values to specify the bar ends Since only the x axis works with time values the floating bars of a scheduling chart need to used in the horizontal orientation mode set using the FloatingBar SetBarOrient method Used in this mode the x values of the dataset position the bars with respect to the y axis and the y values of the dataset position the ends of the bars with respect to the x axis In order to have a group dataset object that stores x values as doubles and the y group values as ChartCalendar dates you must use a special TimeGroupDataset constructor Visual Basic Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As ChartCalendar ByVal y As ChartCalendar
171. QCChart3D 3D Charting Tools for Net exl H E r s d um Price NASDAQ 50 i i i 40 1 06 03 1 13 03 1 20 03 1 27 03 2 03 03 2 10 03 2 17 03 2 24 03 3 03 03 A shadow may be infinitely dark and also of infinite degrees of absence of darkness The beginnings and ends of shadow lie between the light and darkness and may be infinitely diminished and infinitely increased Shadow is the means by which bodies display their form The forms of bodies could not be understood in detail but for shadow from the Notebooks of Leonardo Da Vinci 1452 1519 Contact Information Company Web Site http www quinn curtis com Electronic mail General Information info quinn curtis com Sales sales quinn curtis com Technical Support Forum http www quinn curtis com ForumFrame htm Revision Date 12 08 2006 Rev 1 7 CChart3D for Net Documentation and Software Copyright Quinn Curtis Inc 2006 Quinn Curtis Inc QCChart3D Tools for Net END USER LICENSE AGREEMENT IMPORTANT READ CAREFULLY This Software End User License Agreement EULA is a legal agreement between you either an individual or a single entity and Quinn Curtis Inc for the Quinn Curtis Inc SOFTWARE identified above which includes the Quinn Curtis Inc QCChart3D 3D Charting Tools By installing copying or otherwise using the SOFTWARE you agree to be bound by the terms of this EULA If you do not agree to the terms of this EULA do not install or use th
172. S x Specifies the x value of the shape position y Specifies the y value of the shape position npostype Specifies the if the position of the shape is specified in physical coordinates normalized coordinates or Net device coordinates Use one of the position constants DEN POS PHYS POS NORM GRAPH POS NORM PLOT POS rotation The rotation in degrees of the shape in the normal viewing plane The rotation will take place about the objects 0 0 0 0 coordinate If the object is not defined with a center of 0 0 0 0 it may be rotated out of the current viewing plane ChartShape example extracted from the example program MultiLinePlots MultiLines C ChartView chartVu new ChartView Create a transparent rectangle shape object and position it in 3D space double zdepth Datasetl ImplicitZValue Color alphaColor Color FromArgb 127 170 100 50 ChartAttribute attrib2 new ChartAttribute alphaColor 1 DashStyle Solid alphaColor attrib2 SetFillFlag true Rectangle3D linearRegionRect new Rectangle3D 0 1 0 1 1 5 50 404 Lines Shapes Images and Arrows GraphicsPath rectpath new GraphicsPath rectpath AddRectangle linearRegionRect GetRectangleF ChartShape linearRegionShape new ChartShape pTransforml rectpath ChartObj PHYS POS 0 0 0 0 zdepth ChartObj PHYS POS 0 linearRegionShape SetChartObjAttributes attrib2 chartVu AddChartObject linearRegionShape Visual Basic Creat
173. Scale DatasetArray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 1 92 0 85 Background for graph Background background new Background pTransforml ChartObj GRAPH BACKGROUND Color White Color LightGray ChartObj Y AXIS chartVu AddChartObject background Visual Basic Create a coordinate system scaled for the data pTransforml New TimeCoordinates pTransforml AutoScale DatasetArray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 1 0 92 0 75 Background Colors Textures and Gradients 163 Background for graph Dim background As New Background pTransforml ChartObj GRAPH BACKGROUND _ Color White Color LightGray ChartObj Y_AXIS chartVu AddChartObject background Class Wall3D GraphObj Wall3D The Wall3D class draws a single 3D wall in graph area using the specified coordinate system and drawing attributes The wall can be positioned at one of the planes associated with the coordinate system XY MINZ PLANE XZ MINY PLANE YZ MINX PLANE XY MAXZ PLANE XZ MAXY PLANE YZ MAXX PLANE Only one wall is drawn for each Wall3D object If you want three walls at three separate planes as most of our examples do you need to create three unique Wall3D objects A Wall3D object is different from a Background object in the PLOT BACKGROUND mode
174. SetAxisIntercept 18 yAxis2 SetChartObjAttributes attrib2 axis color matches line color chartVu AddChartObject yAxis2 yAxis3 New LinearAxis pTransform3 ChartObj Y AXIS yAxis3 SetAxisIntercept 35 yAxis3 SetChartObjAttributes attrib3 axis color matches line color chartVu AddChartObject yAxis3 yAxis4 New LinearAxis pTransform4 ChartObj Y AXIS yAxis4 SetAxisIntercept 52 yAxis4 SetChartObjAttributes attrib4 axis color matches line color chartVu AddChartObject yAxis4 yAxis5 New LinearAxis pTransform5 ChartObj Y AXIS yAxis5 SetAxisIntercept xAxis GetAxisMax yAxis5 SetAxisTickDir ChartObj AXIS MAX yAxis5 SetChartObjAttributes attrib5 axis color matches line color chartVu AddChartObject yAxis5 Dim xAxisLab As New NumericAxisLabels xAxis xAxisLab SetTextFont theFont chartVu AddChartObject xAxisLab Dim yAxisLabl As New NumericAxisLabels yAxisl yAxisLabl SetTextFont theFont yAxisLabl SetAxisLabelsFormat ChartObj BUSINESSFORMAT chartVu AddChartObject yAxisLabl Dim yAxisLab2 As New NumericAxisLabels yAxis2 FAQs 469 yAxisLab2 SetTextFont theFont chartVu AddChartObject yAxisLab2 Dim yAxisLab3 As New NumericAxisLabels yAxis3 yAxisLab3 SetTextFont theFont chartVu AddChartObject yAxisLab3 Dim yAxisLab4 As New NumericAxisLabels yAxis4 yAxisLab4 SetTextFont theFont chartVu AddChartObject yAxisLab4 Dim yAxisLab5 As New NumericAxisLabels yAxis5
175. Simple Plot Objects transform The coordinate system for the new SimpleScatterPlot object dataset The scatter plot represents the values in this dataset symtype The symbol used in the scatter plot Use one of the scatter plot symbol constants 2D Symbols NOSYMBOL SQUARE TRIANGLE DIAMOND CROSS PLUS STAR LINE HBAR VBAR CIRCLE 3D Symbols HBAR3D VBAR3D CUBE3D PLUS3D DIAMOND3D PYRAMID3D HOURGLASS3D ARROW3D CYLINDER3D SPHERE3D attrib Specifies the attributes size line and fill color for the scatter plot A ChartAttribute object sets the objects global outline and fill attributes Change the simple plot objects ChartAttribute object using the objects SetChartObjAttributes method For a simple color change of the scatter plot symbol use the scatter plot objects SetColor method Individual scatter plot symbols in a scatter plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods Simple scatter plot example extracted from the example program ScatterPlots SimplePoints C Define dataset TimeSimpleDataset Datasetl new TimeSimpleDataset First x1l yl Datasetl ImplicitZValue 0 5 TimeSimpleDataset Dataset2 new TimeSimpleDataset Second x1 y2 Create a coordinate system for the data TimeCoordinates pTransforml new TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR Cha
176. The default format for the date time formatstring object is M dd yy Call the SetDateTimeFomatString method to change the default date time format See the documentation for the Net DateTime ToString method to figure out the various formatting options for the date time format string If you are into internationalization and difficult to understand Net documentation you can also create your own DateTimeFormatInfo object installing it in the CSV object using CSV SetTimeDateFormat method The date time format string and the DateTimeFormatInfo object apply to both CSV files used for input and CSV files used for output If an attempt is made to read date time values that do not match the desired format the data values are set to invalid date time values You can retrieve a copy of the date time data using the TimeGroupDataset GetTimeXData method It returns an array of ChartCalendar objects and it is not a reference to the underlying data The underlying data is stored as double values that represent the millisecond equivalent of the date time values The TimeGroupDataset GetXData and GetYData methods return references to the underlying data You can also modify a point at a time using one of the TimeGroupDataset SetTimeXDataValue and SetYDataValue methods If you need to add new points to dataset increasing its size use one of the AddTimeGroupDataPoints or InsertTimeGroupDataPoints methods Delete data points using the DeleteDataPoint method
177. The next constructor creates a dataset using the x and y values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the x values and subsequent columns represent the y values where each column is a group If you use the ROW MAJOR format the first row represents the x values and subsequent rows represent the y values where each row is a group Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation Visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ Cf public GroupDataset3D CSV csv Chart Datasets 93 string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the first value from the row You can retrieve references to the internal arrays used to store the data using the GroupDataset3D methods GetXData and GetGroupData Change the values in the data arrays using these references You can also modify a point at a time using one of the SetYDataValue and SetXDataValue methods If you need to add new points to dataset increasing its size use one of t
178. UT LIMITATION THE IMPLIED WARRANTIES OR MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT THE ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE REMAINS WITH YOU 9 LIMITATION OF LIABILITY INNO EVENT SHALL QUINN CURTIS INC OR ITS SUPPLIERS BE LIABLE TO YOU FOR ANY CONSEQUENTIAL SPECIAL INCIDENTAL OR INDIRECT DAMAGES OF ANY KIND ARISING OUT OF THE DELIVERY PERFORMANCE OR USE OF THE SUCH DAMAGES IN ANY EVENT QUINN CURTIS S LIABILITY FOR ANY CLAIM WHETHER IN CONTRACT TORT OR ANY OTHER THEORY OF LIABILITY WILL NOT EXCEED THE GREATER OF U S 1 00 OR LICENSE FEE PAID BY YOU 10 U S GOVERNMENT RESTRICTED RIGHTS The SOFTWARE is provided with RESTRICTED RIGHTS Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of The Rights in Technical Data and Computer SOFTWARE clause of DFARS 252 227 7013 or subparagraphs c i and 2 of the Commercial Computer SOFTWARE Restricted Rights at 48 CFR 52 227 19 as applicable Manufacturer is Quinn Curtis Inc 18 Hearthstone Dr Medfield MA 02052 USA 11 MISCELLANEOUS If you acquired the SOFTWARE in the United States this EULA is governed by the laws of the state of Massachusetts If you acquired the SOFTWARE outside of the United States then local laws may apply Should you have any questions concerning this EULA or if you desire to contact Quinn Curtis Inc for any reason please contact Q
179. View Dim Dim Dim Dim Dim Dim For Next chartVu Size Dim Function GetInitializeChart ByVal XDataString As String ByVal imagewidth As Integer ByVal ByVal imageheight As Integer As Double I oe o n N LA gt Wu xvalues As Double yvalues kant ge 13 chartVu As ChartView New ChartView xdata As String XDataString Split ydatal As String YDatastring Split i As Integer i 0 To xdata Length 1 xvalues i Double Parse xdata i yvalues i Double Parse ydata i Set size of view to match the size of target image for best rendering New Size imagewidth imageheight theFont As Font New Font SansSerif 10 FontStyle Bold 441 442 Using QCChart3D for Net to Create Web Applications Dim Datasetl As SimpleDataset New SimpleDataset First xvalues yvalues Dim pTransforml As CartesianCoordinates New CartesianCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR pTransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 9 Dim graphbackgroundl As Background New Background pTransforml ChartObj GRAPH BACKGROUND Color White chartVu AddChartObject graphbackgroundl Dim xAxisl As LinearAxis New LinearAxis pTransforml ChartObj X AXIS xAxisl SetColor Color Black chartVu AddChartObject xAxisl Dim yAxisl As LinearAxis New LinearAxis pTransforml ChartObj Y AXIS yAxisl SetColor Colo
180. Vu AddChartObject thePlot1 380 Legends Create a generic legend Dim attrib2 As New ChartAttribute Color Black 0 DashStyle Solid attribl SetFillQolor Color FromArgb 177 33 33 Dim legendFont As New Font Microsoft Sans Serif 10 FontStyle Regular Dim legendAttributes As New ChartAttribute Color Black 1 DashStyle Solid Color White legendAttributes SetFillFlag True legendAttributes SetLineFlag True Create bubble plot legend Dim legend As New BubblePlotLegend thePlotl 0 85 0 15 0 14 0 25 legendAttributes legend AddLegendItem 10 Million 10 attrib2 legendFont legend AddLegendItem 25 Million 25 attrib2 legendFont legend AddLegendItem 40 Million 40 attrib2 legendFont legend AddLegendGeneralText ChartObj LEGEND HEADER Bubble Size Color Black legendFont chartVu AddChartObject legend 20 Text Classes ChartText ChartTitle AxisTitle ChartLabel StringLabel TimeLabel NumericLabel The software uses the ChartText classes to position and format text in a chart Examples of classes derived from the ChartText include the ChartLabel AxisLabels ChartTitle and AxisTitle classes The Legend PieChart and ChartPlot classes while not derived from the text classes use them internally ChartText derived classes are positioned in 3D space the position of the text with respect to the z axis is set using the text objects ImplicitZValue property Important note about ChartTex
181. XIS MIN ChartObj LABEL ALL Color Black CountryNames 7 xAxisLabl SetColor Color Black chartVu AddChartObject xAxisLabl 9 Axis Grids Grid Axis grids are solid dotted or dashed lines aligned with the axis tick marks and which extend across the plot area volume of a graph Axis grids are a separate class from the axis Classes An axis class i e any class derived from Axis can exist independent of a grid Many graphs use axes that do not have grids For example the y axis may have a grid while the x axis may not The axis grid classes are not independent and they require valid references to two axes Linear Logarithmic and Time Axis Grids Class Grid GraphObj Grid The Grid class defines a grid for LinearAxis LogAxis and TimeAxis classes A grid object needs a reference to two axes x and y axis x and z axis or y and z axis The grid aligns with the tick marks of one axis and extends across the plot area volume using the minimum and maximum values of the other axis For example an x axis grid has lines aligned with the tick marks of the x axis and extending from the minimum y value to the maximum y value of the y axis parallel to the y axis The default grid assumes that the grid is drawn in the XY MAXZ PLANE the back plane of most 3D graphs The default can be changed using the SetGridAxesPlane method Grid constuctor Visual Basic Overloads Public Sub New _ ByVal axisrefl As Axis _ ByVal ax
182. Y 5 Dim yMin As Double 0 Dim yMax As Double 15 Dim simpleTimeScale As TimeCoordinates simpleTimeScale New TimeCoordinates xMax yMin xMin yMax Use the TimeCoordinates SetCoordinateBounds method in the same manner The example below inverts the y scale 142 Scaling and Coordinate Systems C TimeCoordinates simpleTimeScale new TimeCoordinates simpleTimeScale SetCoordinateBounds xMin yMax xMax yMin Visual Basic Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale SetCoordinateBounds xMin yMax xMax yMin The auto scale functions always create scales that increase from left to right and bottom to top This does not exclude the use of the auto scale functions when creating inverted axes After an auto scale function creates the initial x and y scales either or both can be inverted by using the CartesianCoordinates or TimeCoordinates InvertScaleX InvertScaleY or InvertScaleZ methods Example of inverting a scale created using the auto scale methods C double II sData 2 3 4 5 0 7 9 9 double yData 22 33 44 55 46 33 25 14 double zvalue 0 0 double zdepth 0 1 SimpleDataset dataset new SimpleDataset Sales xData yData zvalue zdepth CartesianCoordinates simpleScale new CartesianCoordinates simpleScale AutoScale dataset simpleScale InvertScaleY Visual Basic 2 3 4 5 6 7 8 9 Dim xData As Double
183. Y 1 values for High the Y 2 values for Low and the Y 3 values for Close 300 Group Plot Objects rflagwidth The width of the open and close markers in units of the independent axis attrib Specifies the main attributes color for the open high low close plot openhighattrib Specifies the attribute of the internal bar used to display the open and close values when the open is higher than the close closehighattrib Specifies the attribute of the internal bar used to display the open and close values when the close is higher than the open OHLC plot example extracted from the example program FinancialExamples OHLCChart C Define at ChartAttribute attribl DashSty ChartAttribu DashSty ChartAttribute closeHighAttrib DashSty attribl Set tributes for OHLC bar plot new ChartAttribute Color Red 1 le Solid Color Red te openHighAttrib new ChartAttribute Color Red 1 le Solid Color LimeGreen new ChartAttribute Color Red 1 le Solid Color Yellow FillFlag true Define OHLC plot OHLCBarPlot thePlotl new OHLCBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj DAY OF YEAR 0 75 attribl openHighAttrib closeHighAttrib thePlotl SetFastClipMode ChartObj FASTCLIP X chartVu AddChartObject thePlotl1 Visual Basic Define attributes for OHLC plot Dim attribl Dim openHig DashStyl Dim closeHighAttrib As New ChartAttribute
184. _ ByVal blabelflags As Boolean _ ByVal numcontourlevels As Integer _ ByVal eontourtype As Integer _ C public ContourPlot PhysicalCoordinates transform ContourDataset dataset double contourlevels ChartAttribute attribs int numcontourlevels int contourtype public ContourPlot PhysicalCoordinates transform ContourDataset dataset double contourlevels ChartAttribute attribs bool blineflags bool blabelflags int numcontourlevels int contourtype transform The coordinate system for the new ContourPlot object dataset The ContourDataset plot will represent the xyz values in this contour data set contourlevels An array size numcontourlevels of the contour levels used in the contour plot attribs An array of color and fill attributes size numcontourlevels 1 If the contourtype is CONTOUR LINE the colors of elements 0 numcontourlevels 1 set the colors of the contour lines If the Contour Plotting 316 contourtype is CONTOUR FILL elements O numcontourlevels set the colors of the contour regions blineflags An array size numcontourlevels of boolean flags specifying whether a contour line should be displayed blabelflags An array size numcontourlevels of boolean flags specifying whether a contour line should be labeled with the numeric value of the associated contour level numcontourlevels The number of contour levels contourtype Specifies 1
185. a is clipped to the plot area volume while axes objects are not clipped For example assume a graph area volume with the dimensions of 400x400x400 units and a plot area volume with the dimensions 200x200x200 centered inside the graph area volume This implies that there is a 100 unit boundary around all six sides of the plot area volume The desired chart uses a physical coordinate system of 0 0 0 100 100 100 These coordinates apply to the plot area volume Instead of using the plot area volume coordinate system the coordinate system 50 50 50 150 150 150 is calculated and used to scale the graph area volume This does not guarantee that any point plotted in plot area volume coordinate system will always map to the exact same pixel as the same point Scaling and Coordinate Systems 107 plotted in the graph coordinate system the odd pixel problem still exists We avoid the odd pixel problem by never plotting points using the plot area volume coordinate system using only the graph area volume coordinate system instead The calculated physical coordinate system applied to the graph area volume is referred to as the working coordinate system Coordinate Systems A QCChart3D for Net library uses other coordinate systems mapped onto the default Net device coordinate system These other coordinate systems include user coordinate world coordinates working coordinates and physical coordinates User Coordinates The UserCoordinates class
186. a standalone application You can try and call the application from Internet Explorer using a URL address that mimics the expected invoking format 444 Using QCChart3D for Net to Create Web Applications http quinn curtis com VBChart3DWebApplicationl WebForml aspx WIDTH 666 amp HEIGHT 448 amp XDATA 1 2 3 24 5 OS YDATA 3 7 5 11 13 15 While not particularly useful if you type in everything correctly it should display the chart defined in the VBChart3DWebApplicationl ASP page e You will probably want to create a HTML page to host the call to the ASP page This can be done using FrontPage a simple editor and the Visual Studio IDE A simple HTML page that connects the URL address above to an HTML image tag appears below The complete source is the file HTMLPagel htm found in the VBChart3DWebApplicationl project folder lt DOCTYPE HTML PUBLIC W3C DTD HTML 4 0 Transitional EN gt lt HTML gt lt HEAD gt lt TITLE gt lt TITLE gt lt META content Microsoft FrontPage 5 0 name GENERATOR gt lt HEAD gt lt BODY gt lt FORM id Forml name simplegraph gt lt P gt lt P gt lt IMG height 448 src http quinn curtis com VBChart3DWebApplicationl WebForml aspx WIDTH 666 amp HEIGHT 448 amp XDATA 1 2 3 74 5 6 amp YDATA 3 7 5 11 13 15 width 666 name thegraph gt lt P gt lt P gt lt p gt lt input type button value Update Image name B1 onclick updategraph ID Buttonl amp nbsp
187. abelInOut 3 hartObj PIELABEL INSLICE t t thePlotl SetLabelInOut 1 t t t hePlotl SetLabelInOut 4 ChartObj PIELABEL INSLICE chartVu AddChartObject thePlotl 19 Legends Legend StandardLegend BubblePlotLegend Charts containing multiple chart objects line plots bar graphs and scatter plots for example usually require a legend The legend provides a key so that the viewer of the chart can figure out what data is associated with what chart object The bounding box of the legend is rectangular and can reside anywhere in the chart window inside the plot area volume overlapping it or completely outside The legend rectangle can have a border and can be filled with a solid color or left transparent The legend object can hold one or more legend items where each legend item is a symbol text string combination providing the key for one of the plot objects in the graph The legend can also have a title and footer The Legend class is the abstract base class for chart legends It organizes a collection of legend items as a rectangular object Legends are 2 dimensional They are postioned in the overall rectangle of the ChartView viewport and do not rotate with the chart The StandardLegend is a subclass of the Legend class and it is the primary legend class for all plot objects except for bubble plots The legend items objects display in a row or column format Each legend item contains a symbol and descriptive
188. al axtype As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal axtype As Integer _ ByVal minval As Double _ ByVal maxval As Double C public LogAxis PhysicalCoordinates transform int axtype public LogAxis PhysicalCoordinates transform int axtype double minval double maxval transform Places the axes in the coordinate system defined by transform axtype Specifies if the axis is an x axis X_AXIS y axis Y_AXIS or a z axis Z_AXIS minval Sets the minimum value for the axis maxval Sets the maximum value for the axis 178 Axes The first LogAxis constructor assumes that the axis extents match the extents of the underlying coordinate system transform The second LogAxis constructor sets the axis extents to the specified minimum and maximum values regardless of the underlying coordinate system Other axis properties axis intercept tick mark lengths tick mark direction and axis tick mark origin are automatically calculated using an auto axis method These properties can be explicitly set if you need to override the automatically calculated values SetAxisIntercept and SetAxisIntercept2 methods The SetAxisIntercept and SetAxisIntercept2 methods set the two intercepts needed to position an axis The coordinates they apply to depends on the axis X_AXIS SetAxisIntercept sets the y intercept of the x axis SetAxisIntercept2 sets the z intercept
189. alZViewportDepth 0 8 Sales vs Cost Gap Ss gt u en so x 1998 1999 2000 2001 The Line Gap chart is useful for emphasizing the difference between two lines The ChartView 147 MiscCharts LineGap chartVu SetFractionalZViewportDepth 0 05 Example of setting the fractional ChartView depth to 0 6 Extracted from the example program Bargraphs SimpleBars C Auto scale a coordinate system for data pTransforml new TimeCoordinates pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR force starting y coordinate scale value of O0 pTransforml SetScaleStartY 0 force starting z coordinate calendar value pTransforml SetTimeScaleStart new ChartCalendar 1997 ChartObj JULY 1 Set chart rotation Make the z coordinate viewport depth to be 0 6 of the width of the viewport chartVu SetFractionalZViewportDepth 0 6 Set render quality chartVu RenderQuality ChartObj RENDER LOWQUALITY position plot area in graph graph area pTransforml SetGraphBorderDiagonal 0 15 0 2 8 0 7 define a graph background Background background new Background pTransforml ChartObj GRAPH BACKGROUND Color Beige Color Bisque ChartObj Y AXIS chartVu AddChartObject background set the rotational characteristics of the chart pTransforml AbsRotateCoordinateSystem new Point3D 10 20 0 VB Auto scale a coordinate system for data Dim pTr
190. ally based on an analysis of the associated chart data The axes of a chart do not define the physical coordinate system of the chart Rather the axes provide a visual key to the physical coordinate system Define the physical coordinate system first using one of the classes derived from PhysicalCoordinates Next create the axes that reside in the physical coordinate It is possible to define a physical coordinate system scaled using a xy range of 0 100 0 100 and create an axis residing in that coordinate system that has minimum and maximum values of 0 25 The axis in that case takes up 25 of the chart plot area volume of the chart Define the same axis with minimum and maximum values of 0 100 and the axes will span 100 of chart plot area volume A chart axis consists of at least two and usually three parts the axis line the axis tick marks and the axis labels The axis line extends from the minimum value to the maximum value of the axis Major tick marks perpendicular to the axis line divide the axis line into sub ranges suitable for labeling Minor tick marks also perpendicular to the axis line further subdivide the space between the major tick marks into even smaller intervals Axis labels are optional On one side of a chart there may be an axis with labels and on the other side an axis without labels 168 Axes Chart Axes There are three concrete axis types supported by the QCChart3D for Net library Axis Type Class Linear
191. alue Sets the ImplicitZValue for the dataset The default value is 0 0 depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of columns in the group dataset is the value of x Length property The number of columns in the y array must match the length of the x array and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped Chart Datasets 89 The next constructor creates a dataset using the x and y values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the x values and subsequent columns represent the y values where each column is a group If you use the ROW_MAJOR format the first row represents the x values and subsequent rows represent the y values where each row is a group Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation Visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ C public GroupDataset CSV csv string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read o
192. alue on an object by object basis Call the GraphObj SetZOrder method to change the z order for any given object The example below sets the z order value of the x axis to 30 changing the drawing order so that the x axis draws before and is therefore underneath any Grid and ChartPlot objects in the view C ChartView chartVu new ChartView LinearAxis xAxis new LinearAxis pTransforml ChartObj X AXIS xAxis SetZOrder 30 chartVu AddChartObject xAxis Visual Basic Dim chartVu As ChartView New ChartView Dim xAxis As LinearAxis New LinearAxis pTransforml ChartObj X AXIS xAxis SetZOrder 30 chartVu AddChartObject xAxis Dynamic or Real Time Updates of Chart Objects If you want to change the properties of one or more GraphObj derived objects displayed in the current graph just go ahead and change them using the appropriate Get and Set methods Once you change all of the properties that you want call the ChartView UpdateDraw method This will force the ChartView object to update redrawing every object in its draw list See the example below C ChartView chartVu new ChartView LinearAxis xAxis new LinearAxis pTransforml ChartObj X AXIS chartVu AddChartObject xAxis The Chart View 151 Change the color of the x axis after it has been created xAxis SetColor Color Red chartVu UpdateDraw Visual Basic Dim chartVu As ChartView New ChartView Dim xAxis As Li
193. ameters pTransforml AbsRotateCoordinateSystem New Point3D 10 10 0 Set chart depth chartVu SetFractionalZViewportDepth 0 2 Place chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 725 Define chart background Dim background As New _ Background pTransforml ChartObj PLOT BACKGROUND Color White chartVu AddChartObject background Define chart walls Dim wallAttrib As New ChartAttribute Color Beige 1 DashStyle Solid Color LightBlue Dim xyMinZWall As New Wall3D pTransforml ChartObj XY MAXZ PLANE 0 1 wallAttrib chartVu AddChartObject xyMinZWall Dim yzMinXWall As New Wall3D pTransforml ChartObj YZ MINX PLANE 0 02 wallAttrib chartVu AddChartObject yzMinXWall Dim xzMinYWall As New Wall3D pTransforml ChartObj XZ MINY PLANE 0 02 wallAttrib chartVu AddChartObject xzMinYWall C Define coordinate system based on data CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a bit to the auto calculated y scale pTransforml ScaleStopY 1 0 Set rotational parameters pTransforml AbsRotateCoordinateSystem new Point3D 10 10 0 Set chart depth chartVu SetFractionalZViewportDepth 0 2 166 Background Colors Textures and Gradients Place chart in graph area prransforml SetGraphBorderDiagonal 0 15 15 90 0 725
194. amples OHLCChart demonstrates how to use a CustomDataToolTip object as a popup box to display this type of data In another related example the program PieCharts SimplePieChart shows how to trap a click on a specific pie slice and display additional data for that slice using a CustomDataToolTip object 14 Moving Chart Objects and Data Points MoveObj MoveData Many of the subclasses of GraphObj are moveable using the mouse This includes the axis legend text image and shape classes If you add the necessary support to your program you can click and drag the object around in the chart This may or not be desirable since a user can ruin a carefully constructed chart by dragging objects around It is just an option though that you can add to the program When an object is moved its movement is restricted to the XY plane The new position of the object retains its starting z position value It is also possible to select a single data point in a simple plot object SimpleLinePlot SimpleBarPlot SimpleLineMarkerPlot and SimpleScatterPlot and move it with a click and drag operation of the mouse Again it is an option that you can add to the program if you want Moving Chart Objects Class MoveObj MouseListener MoveObj The MoveObj mouse listener traps a mouse pressed event and then searches through all of the GraphObj derived objects in the view A rectangle highlights the first object that meets the filter criteria and intersec
195. an vary point to point The ContourDataset is the exception that proves the rule It does not end in 3D but it is a 3D dataset type We did not add the 3D suffix to maintain compatibility with the QCChart2D API Simple Numeric Dataset Class SimpleDataset ChartObj ChartDataset SimpleDataset The SimpleDataset class represents simple floating point xy data where for every x value there is one y value The number of xy data points in a simple dataset is referred to as the number of columns or as the property numberDatapoints Think of a spreadsheet file that looks like x values x 0 x 1 x 2 x 3 x 4 x 5 y values y 0 yl ail yBl v4 yi5 ImplicitZValue 0 number of xy data pairs numberDatapoints numberColumns 6 This would be the ROW_MAJOR format if the data were stored in a CSV file Chart Datasets 65 It has two main constructors This constructor creates a dataset using the x y values stored in arrays SimpleDataset constructors Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As Double ByVal y As Double Overloads Public Sub New _ ByVal sname As String _ ByVal x As Double ByVal y As Double _ ByVal zvalue As Double _ ByVal depthvalue As Double Ct public SimpleDataset string sname double x double y public SimpleDataset string sname double x double y double zvalue double depthvalue sname
196. and line style for each group of the multi line plot The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Multi line plot example extracted from the example program MultiLinePlots MultiLinel C Simulate data int numPoints 100 int numGroups 7 double x1 new double numPoints double yl new double numGroups numPoints int i j for 1920 i numPoints i xl i double i 0 2 for j 0 J lt numGroups j yl j i j i 0 01 double j 1 5 0 1 0 Math Exp x1 i 0 7 Initialize a couple of data values with the bad data value constant y1 0 5 ChartObj rBadDataValue y1 3 15 ChartObj rBadDataValue Create a group dataset to hold all of the multi line data Group Plot Objects 291 GroupDataset Datasetl new GroupDataset First x1 yl Datasetl ImplicitDepthValue 0 2 Datasetl ImplicitZValue 0 6 Auto scale a coordinate system pTransforml new CartesianCoordinates ChartObj LINEAR SCALE Chark b LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 15 90 0 75 Force starting values of x and y scale
197. ange Y Max Internet Visual C Create a Windows Control Library and User Control You need to create a ChartView derived user control that defines your chart and includes all of the properties that you need for interacting with your chart This is done almost exactly the same as described in the previous chapter Using QCChart3D for Net to Create Windows Applications The difference is that instead of creating a Net application resulting in an exe file you can run from Windows you are instead creating a Windows Control Library which results in aDLL file What you end up with is a user control not an executable program The user control must be referenced in a specific way Using QCChart3D for Net to Create Web Applications 449 in an HTML file before you can display it The basic steps for creating the ChartView derived control are described below Start by creating a Windows Control Library project using the Visual Studio project wizard File New Project Visual C Projects Windows Control Libary On the left select a project type of Visual C Projects Give the project a unique name our version of this example is WindowsControlLibrary1 You will end with the shell of a UserControl class with the name UserControll You will modify UserControll and turn it into an object derived from our ChartView object Right click on Reference in the Solution Explorer window and select Add Reference Browse to the Quinn Curtis DotN
198. ansforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 Define attributes of Record High Low floating bar plot ChartAttribute RecordHLAttrib new ChartAttribute Color Red 1 DashStyle Solid Color Red Define attributes of Normal High Low floating bar plot ChartAttribute NormalHLAttrib new ChartAttribute Color Green 1 DashStyle Solid Color Green Define attributes of Todsyas High Low floating bar plot ChartAttribute TodaysHLAttrib new ChartAttribute Color Blue 1 DashStyle Solid Color Blue ChartAttribute attribs RecordHLAttrib NormalHLAttrib TodaysHLAttrib NormalHLAttrib RecordHLAttrib RecordHLAttrib Create floating bar plot FloatingStackedBar thePlotl new FloatingStackedBar pTransforml HighsAndLows ChartCalendar GetCalendarWidthValue ChartObj DAY OF MONTH 0 75 attribs ChartObj JUSTIFY CENTER chartVu AddChartObject thePlotl1 VB Group Plot Objects 275 Create Temperature Chart Create a time scale Dim pTransforml As New TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE Auto scale time scale based on the the three datasets in the dataset array pTransforml AutoScale HighsAndLows ChartObj AUTOAXES NEAR ChartObj AUTOAXES FAR Set chart rotation Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 Define attributes of Record High Lo
199. ansforml As New TimeCoordinates pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR force starting y coordinate scale value of 0 148 The ChartView pTransforml SetScaleStartY 0 force starting z coordinate calendar value pTransforml SetTimeScaleStart New ChartCalendar 1997 ChartObj JULY 1 Set chart rotation Make the z coordinate viewport depth to be 0 6 of the width of the viewport chartVu SetFractionalZViewportDepth 0 6 Set render quality chartVu RenderQuality ChartObj RENDER LOWQUALITY position plot area in graph graph area pTransforml SetGraphBorderDiagonal 0 15 0 2 0 8 0 7 define a graph background Dim background As New Background pTransforml ChartObj GRAPH BACKGROUND Color Beige Color Bisque ChartObj Y AXIS chartVu AddChartObject background set the rotational characteristics of the chart pTransforml AbsRotateCoordinateSystem New Point3D 10 20 0 Rendering Order of GraphObj Objects Each GraphObj object is added as an element to an ArrayList object inside the ChartView class When the chart view is rendered it runs through the GraphObj objects stored in the list and renders them one by one to the current view There are two ordering methods used to render chart objects The first method renders the objects in order as added to the ChartView object Objects added to the view last are drawn on top of objects added first The second method renders the o
200. ape If the shape coordinates are relative coordinates with the object centered on 0 0 place the shape at the position you want using the xy position parameters The xy position parameters are the rotation origin of shape ChartShape constructor Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal ashape As GraphicsPath _ ByVal shapecoordstype As Integer _ ByVal x As Double ByVal y As Double _ ByVal npositiontype As Integer _ ByVal rotation As Integer _ Overloads Public Sub New _ ByVal ashape As GraphicsPath _ ByVal shapecoordstype As Integer _ ByVal x As Double ByVal y As Double _ ByVal npositiontype As Integer _ ByVal rotation As Integer _ C public ChartShape PhysicalCoordinates transform GraphicsPath ashape int shapecoordstype double x double y int npositiontype int rotation public ChartShape GraphicsPath ashape int shapecoordstype double x double y int npositiontype int rotation Lines Shapes Images and Arrows 403 transform The shape object is placed in the coordinate system defined by transform ashape A reference to a System Drawing Drawing2D GraphicsPath object shapecoordstype Specifies if the coordinate system defining the shape is specified in physical coordinates normalized coordinates or Net device coordinates Use one of the position constants DEV_POS PHYS POS NORM GRAPH POS NORM PLOT PO
201. apes Images and Arrows C public ChartImage PhysicalCoordinates transform Image aimage double double double X Y Z int npostype int rotation public ChartImage Image aimage double double double X Yr Z int npostype int rotation public ChartImage PhysicalCoordinates transform Image aimage double double X Yi int npostype int rotation public ChartImage Image aimage double double X Ir int npostype int rotation transform aimage x y Z npostype rotation The coordinate system for the new ChartImage object A reference to the Image object that is to be placed in the chart The x value for the position of the image in the chart The y value for the position of the image in the chart The z value for the position of the image in the chart Specifies whether the x and y position values are specified in normalized coordinates or physical coordinates Use one of the position constants NORM_POS PHYS_POS The rotation of the image specified in degrees ChartImage example extracted from the example program ImageCharts ImageBackground Lines Shapes Images and Arrows 407 C All of this is to try and load image file String path Environment CurrentDirectory String filename Images ChartClouds jpg Bitmap almage null try almage new Bitmap filename
202. aph Area Volume The WorkingCoordinate base class for all coordinate system classes includes routines for rotating the chart within the chart area volum The default rotation of the chart is no rotation x rotation y rotation z rotation 0 where the XY plane is parallel to the screen and the z axis is perpendicular to the screen This is the standard 2D representation of data found in our QCChart2D software and others that do not support 3D graphics If you want your charts plotted with a 3D look and feel you must explicity rotate the chart in your program using one the coordinate systems AbsRotateCoodinateSystem and or RelRotateCoodinateSystem methods The default origin of the rotations i e the point around which the rotations are viewed to take place is the 3D point 0 5 0 5 0 5 the centroid of the graph area volume in normalized coordinates This can be changed using the AbsTranslateCoordinateSystem method AbsRotateCoordinateSystem Set absolute the rotational state of the coordinate system Visual Basic Overloads Public Sub AbsRotateCoordinateSystem _ ByVal rotate As Point3D _ C public void AbsRotateCoordinateSystem Point3D rotate rotate Rotate the coordinate system by this amount in absolute degrees Rotating a chart to an absolute position of 10 degrees about the x axis and 20 degrees about the y axis Extracted from the Bargraphs SimpleBars example program Auto scale a coordinate system
203. artAttribute object sets the color Change the ChartAttribute object using the objects SetChartObjAttributes method There is also a group of methods that set individual simple plot properties SetColor Individual pipeline segments in a pipeline plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods Simple 2 1 2D pipeline plot example extracted from the example program SimpleLinePlots PipeLineAndScatterPlot C SimpleDataset Datasetl new SimpleDataset First x1 y1l SimpleDataset Dataset2 new SimpleDataset Second x1 y2 0 1 0 2 SimpleDataset Dataset3 new SimpleDataset Third x1 y3 0 9 0 1 Define coordinate system based on data 230 Simple Plot Objects CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a bit to the auto calculated y scale pTransforml ScaleStopY 1 0 Set rotational parameters pTransforml AbsRotateCoordinateSystem new Point3D 10 10 0 Set chart depth chartVu SetFractionalZViewportDepth 0 2 Define second plot as a pipeline plot ChartAttribute attrib2 new ChartAttribute Color LightGreen 3 DashStyle Solid Color LightGreen ChartAttribute attrib21 new ChartAttribute Color Blue 1 DashStyle Solid Color Blue PipeLinePlot thePlot2 new PipeLinePlot pTrans
204. artObj X AXIS xAxis SetAxisTickOrigin 20 chartVu AddChartObject xAxis 13 How do I create and use custom multi line string labels as the axis labels for my graph The StringAxisLabels class should be used to create multi line axis labels Insert the n new line character to add additional lines to each string used to define the string axis labels The example below is from the AxisLabels example program C String xstringlabels 478 FAQs n FK Western n Sales n Region Bastern n Sales n Region Southern n Sales n Region Northern n Sales n Region StringAxisLabels xAxisLab5 new StringAxisLabels xAxis5 xAxisLab5 SetAxisLabelsStrings xstringlabels 5 xAxisLab5 SetTextFont graph5Font chartVu AddChartObject xAxisLab5 Visual Basic Dim xstringlab ls As String Ir Western ControlChars Lf Sales ControlChars Lf Region Eastern ControlChars Lf Sales _ ControlChars Li Region Southern ControlChars Lf 4 Sales _ Co ntrolChars Lf Region Northern Co ntrolChars Lf Sales ControlChars Lf Region Dim xAxisLab5 As New StringAxisLabels xAxis5 xAxisLab5 SetAxisLabelsStrings xstringlabels 5 xAxisLab5 SetTextFont graph5Font chartVu AddChartObject xAxisLab5 14 How do I place more than one graph in a view One way to create multiple charts is to create multiple instances of the
205. artVu SetCurrentMouseListener mouselistener Visual Basic ChartView chartVu Me Moving Objects and Data Points 335 Create a 3D dataset Dim Datasetl As New ContourDataset First xl yl z1 Create a coordinate system to match data Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim mouselistener As New MoveData Me pTransforml mouselistener SetMarkerType ChartObj MARKER CROSS mouselistener SetMarkerSize 12 mouselistener SetMoveMode ChartObj MOVE Y mouselistener SetEnable True chartVu SetCurrentMouseListener mouselistener 15 Zooming ChartZoom Zooming is the interactive re scaling of a charts physical coordinate system and the related axes based on limits defined by clicking and dragging a mouse inside the current graph window A typical use of zooming is in applications where the initial chart displays a large number of data points The user interacts with the chart defining smaller and smaller zoom rectangles zeroing in on the region of interest The final chart displays axis limits that have a very small range compared to the range of the original un zoomed chart When a zoom rectangle is defined using a click and drag operation with the mouse the drawing of the zoom rectangle is restricted to the XY plane The zoom rectangle only changes the x and y scale of the graph The z sca
206. artZoom SetEnable true method to enable the zoom object Restrict zooming in the x or y direction using the SetZoomXEnable and SetZoomY Enable methods Set the rounding mode associated with rescale operations using the SetZoomXRoundMode and SetZoomYRoundMode methods Call the ChartZoom PopZoomStack method at any time and the chart scale reverts to the minimum and maximum values of the previous zoom operation Repeated calls to the PopZoomStack method return the chart scale is to its original condition after which the PopZoomStack method has no effect Super zoom example Adapted from the ZoomExamples SuperZoom example In this example a new class derives from the ChartZoom class and the OnMouseDown event overridden The event invokes the PopZoomStack method Otherwise the default operation of the ChartZoom class controls everything else Zooming 343 ChartZoom Out Click the right button to return to the previous zoom scale 20 4000 5000 40K 0 3000 30K 0 20 2000 20K 40 5000 1000 10K 60 80 0 10000 0 20 40 60 80 100 Event Partition Super zooming ZoomExamples SuperZoom C public class SuperZoom com quinncurtis chart3dnet ChartView Custom zoom class that implements a zoom stack private class ZoomWithStack ChartZoom d public ZoomWithStack ChartView component CartesianCoordinates transforms double zpos bool brescale base component transforms zpos brescale public override
207. ase class This includes all of the axis classes axis label classes plot classes text classes and legend classes among others You must explicitly add objects of this type to the ChartView object using the ChartView AddChartObject method after they have been created and initialized Otherwise the object will not be included in the draw list of the ChartView The example below adds an axis object to the ChartView draw list ChartView AddChartObject example extracted from the example program LabeledDatapoints LabeledDatapoints C 144 The ChartView ChartView chartVu this Create a 3D dataset SimpleDataset3D Datasetl new SimpleDataset3D First xl yl z1 Create a coordinate system to match data CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 125 15 90 0 8 Define x and y axes LinearAxis xAxis new LinearAxis pTransforml ChartObj X AXIS chartVu AddChartObject xAxis Visual Basic Dim chartVu As ChartView Me Create a 3D dataset Dim Datasetl As New SimpleDataset3D First xl yl z1 Create a coordinate system to match data Dim pTransforml As New _ CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj
208. asetl As New GroupDataset Actual Sales xl yl Datasetl ImplicitDepthValue 1 0 Datasetl ImplicitMinZValue 0 0 Define coordinate system Dim pTransforml As New CartesianCoordinates pIransforml SetScaleStarty 0 pTransforml SetScaleStartX 0 pTransforml SetScaleStopX 80 pTransforml SetScaleStopY 1 0 position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 825 Set chart rotation Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate define histogram plot Dim attribl As New ChartAttribute Color Black 0 DashStyle Solid Color Green attribl SetFillFlag True Dim thePlotl As New HistogramPlot pTransforml Datasetl 0 0 attribl Group Plot Objects 285 Dim bardatavalue As NumericLabel thePlot1 GetPlotLabelTemplate define data point values for histogram plot bardatavalue SetTextFont theFont bardatavalue SetNumericFormat ChartObj PERCENTFORMAT bardatavalue SetColor Color Black thePlotl SetBarDatapointLabelPosition ChartObj INSIDE BAR thePlotl SetPlotLabelTemplate bardatavalue thePlotl SetShowDatapointValue True color each histogram bar different hePlotl SetSegmentAttributesMode True hePlotl SetSegmentFillColor 0 Color Red hePlotl SetSegmentFillColor 1 Color Magenta hePlotl SetSegmentFillColor 3 Color Green hePlotl SetSegmentFillColor 4 Color Yellow E t thePlotl SetSegmentFillColor 2 Colo
209. asic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset ByVal basearrow As Arrow ByVal attrib As ChartAttribute C public ArrowPlot PhysicalCoordinates transform GroupDataset dataset Arrow basearrow ChartAttribute attrib transform The coordinate system for the new ArrowPlot object dataset The group dataset sets the position size and rotation of individual arrows The number of groups must be three Orgainize the data in the dataset in the following manner X X position of the arrow point Y 0 y position of the arrow point XH Size of the arrow A size of 0 05 creates an arrow with a length equal to 0 05 in NORM PLOT POS coordinates 250 Group Plot Objects Y 2 The rotation of the arrow using the point of the arrow as the rotation origin in degrees Z z position of the arrow point basearrow An instance of an Arrow object used to draw the arrows in this ArrowPlot object attrib Sets the color line and fill characteristics for the arrows in this ArrowPlot object An individual arrow in an arrow plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Arrow plot example extracted from the example program ScatterPlots ArrowChart C Create a group dataset GroupDataset Datasetl new GroupDataset First x1 yl Datasetl
210. ass and it displays formatted numeric values TimeLabel This class is a subclass of the ChartLabel class and it displays formatted ChartCalendar dates StringLabel This class is a subclass of the ChartLabel class that formats string values for use as axis labels Class Architecture 51 Miscellaneous Chart Classes Marker ChartImage ChartShape ChartSymbol ChartSymbol3D Various classes are used to position and draw objects that can be used as standalone objects in a graph or as elements of other plot objects Marker ChartImage ChartShape ChartSymbol ChartSymbol3D This class displays one of five marker types in a graph The marker is used to create data cursors or to mark data points Markers will operate in 3D space This class encapsulates a System Drawing Image class defining a rectangle in chart coordinates that the image is placed in JPEG and other image files can be imported using the System Drawing Image class and displayed in a chart Images can be place in 3D space but the imag e itself will not be transformed and it will display as a 2D rectangular object with no rotation This class encapsulates a System Drawing Drawing2D GraphicsPath class placing the shape in a chart using a position defined in chart coordinates A chart can display any object that can be defined using System Drawing Drawing2D GraphicsPath class Shapes can be place in 3D space and should transform along with the rest of the chart
211. at can be dropped on to the data presented in a graph much like a bookmark in a word processing document Place the markers in a chart under program control or in response to a mouse event in the graph window Data markers can be positioned in 3D space Data cursors are temporary lines or symbols drawn using the XOR drawing mode that are used to help position the mouse cursor over the desired section of a graph Standard data cursors include cross hairs a box and horizontal and or vertical lines Data cursors are restricted to the XY plane The z value of the data cursor is specified using the data cursors ImplicitZValue property Data Markers Class Marker GraphObj Marker Create data markers using the Marker class The constructor below creates a new Marker object using the specified coordinate system marker type marker position and marker size The marker is drawn facing the XY plane at the specified x y and z position Marker constructor Visual Basic visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal nmarkertype As Integer _ ByVal x As Double _ ByVal y As Double ByVal z As Double _ ByVal rsize As Double _ ByVal npostype As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal nmarkertype As Integer _ ByVal x As Double _ ByVal y As Double _ 322 Data Markers and Data Cursors ByVal r
212. atas 30 52 13 64 25 7b l3 35 24 19 e zvalue 0 1 e depthvalue 0 2 eDataset datasetl new SimpleDataset Sales1 xDatal yDatal zvalue depthvalue e zvalue 0 4 eDataset dataset2 new SimpleDataset Sales2 xData2 yData2 zvalue depthvalue e zvalue 0 7 eDataset dataset3 new SimpleDataset Sales3 xData3 yData3 zvalue depthvalue eDataset H datasetsArray new SimpleDatasets 3 datasetsArray 0 datasetsArray 1 datasetsArray 2 CartesianCoordinates simpleScale datasetl dataset2 dataset3 new CartesianCoordinates simpleScale AutoScale datasetsArray Visual Basic Dim xDatal As Double 1 2 3 4 5 6 7 8 9 10 Dim yDatal As Double 10 22 33 44 55 46 33 25 14 9 Dim xData2 As Double 110 9 8 Ty 6 5 4 3 2 1 Dim yData2 As Double 20 12 43 54 15 26 63 25 24 19 Dim xData3 As Double 5 6 7 6 5 4 5 6 7 8 Dim yData3 As Double 30 52 13 4 25 76 13 35 24 19 Dim zvalue As Double 0 Dim depthvalue As Double 0 2 Scaling and Coordinate Systems 123 Dim datasetl As SimpleDataset _ New SimpleDataset Sales1 xDatal yDatal zvalue depthvalue zvalue 0 4 Dim dataset2 As SimpleDataset _ New SimpleDataset Sales2 xData2 yData2 zvalue depthvalue zvalue 0 7 Dim dataset3 As SimpleDataset _ New SimpleDataset Sales3 xData3 yData3 zvalue depthvalue Dim datasets
213. atasetarray As TimeSimpleDataset Datasetl Dataset2 Dataset3 Auto scale a coordinate system for data Dim pTransforml As New TimeCoordinates pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR force starting y coordinate scale value of O0 pTransforml SetScaleStartY 0 force starting z coordinate calendar value pTransforml SetTimeScaleStart New ChartCalendar 1997 ChartObj JULY 1 T pTransforml InvertScaleX Simple Plot Objects 235 Set chart rotation Make the z coordinate viewport depth to be 0 6 of the width of the viewport chartVu SetFractionalZViewportDepth 0 6 Define plot 1 Dim attribl As New ChartAttribute Color Green 0 DashStyle Solid Color Green Dim thePlotl As New SimpleBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj MONTH 10 0 0 ettribl ChartObj JUSTIFY CENTER chartVu AddChartObject thePlot1 Define plot 42 Dim attrib2 As New ChartAttribute Color Crimson 0 DashStyle Solid Color Crimson Dim thePlot2 As New SimpleBarPlot pTransforml Dataset2 ChartCalendar GetCalendarWidthValue ChartObj MONTH 10 0 0 attrib2 ChartObj JUSTIFY CENTER thePlot2 BarShapeOption ChartObj CYLINDER3D chartVu AddChartObject thePlot2 Define plot 43 Dim attrib3 As New ChartAttribute Color Black 0 DashStyle Solid Color DodgerBlue Dim thePlot3 As New SimpleBarPlot pTransforml Dataset3 ChartCalendar GetCalendarWi
214. ations 0 1 to 100 0 0 1 1 0 10 0 100 0 20 to 50 000 20 200 2000 20000 10 to 1 0 10 10 10 10 1 0 The minor tick marks for a logarithmic axis use a linear interval between the tick marks For example a major tick mark interval has endpoints of 10 to 100 a logarithmic interval The minor ticks in between the 10 and the 100 use a linear interval of 10 and fall at 20 30 40 50 60 70 80 and 90 For the next major tick mark interval 100 to 1000 the minor tick mark interval becomes 100 and minor tick marks fall at 200 300 400 500 600 700 800 and 900 The minor tick mark intervals are set equal to the value of the preceding major tick mark interval If the major tick mark interval uses a non decade range for example 3 30 300 30000 the minor tick marks will track the major tick marks The major tick mark interval of 3 to 30 will use a minor tick mark range of 3 with minor tick marks at 6 9 12 15 18 21 24 and 27 Logarithmic Axis Intercept A logarithmic axis has two intercept values the same as a linear axis A logarithmic axis resides in a 3 dimensional physical coordinate system The minimum and maximum values for the axis provide coordinate information for only one dimension x coordinates in the case of an x axis and y coordinates in the case of the y axis The missing coordinates needed to position the axis are the axis intercepts The axis intercepts specifies the y and z coordinate position for the x axi
215. be moved using the mouse MouseListeners MoveObjects C ChartView chartVu this Define a dataset TimeSimpleDataset Datasetl new TimeSimpleDataset DJA x1 yl 0 2 0 5 Create a compatible coordinate system for data TimeCoordinates pTransforml new TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR 332 Moving Chart Objects and Data Points Add a simple mouse move listener MoveObj mouselistener new MoveObj chartVu mouselistener SetEnable true mouselistener SetMoveObjectFilter GraphObj chartVu SetCurrentMouseListener mouselistener Visual Basic Dim chartVu As ChartView Me Define a dataset Dim Datasetl As New TimeSimpleDataset DJA xl yl 0 2 0 5 Create a compatible coordinate system for data Dim pTransforml As New TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a simple mouse move listener Dim mouselistener As New MoveObj chartVu mouselistener SetEnable True mouselistener SetMoveObjectFilter GraphObj chartVu SetCurrentMouseListener mouselistener Moving Simple Plot Object Data Points Class MoveData MouseListener MoveData The MoveData mouse listener traps a mouse pressed event and searches through all of the data points of the plot objects in the view The data point closest to the mouse cursor location is compared against a threshold value 10 d
216. because the Background planes are 2 dimensional and have no depth to them A Wall3D object is drawn as a 3D prism with height width and depth Wall3D constructors Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal wallorientation As Integer _ ByVal wallthickness As Double _ ByVal wallattrib As ChartAttribute Ct public Wall3D PhysicalCoordinates transform int wallorientation double wallthickness ChartAttribute wallattrib 164 Background Colors Textures and Gradients transform The scale associated with the chart background wallorientation Specifies the position of the wall Use one of the ChartSupport wall orientation constants XY MINZ PLANE XZ MINY PLANE YZ MINX PLANE XY MAXZ PLANE XZ MAXY PLANE YZ MAXX PLANE wallthickness Specifies the thickness of the wall in normalized 0 0 to 1 0 coordinates wallattrib The ChartAttribute of the wall Simple Wall3D example extracted from the example program SimpleLinePlots PipeLineAndScatterPlot ST SimpleLinePlots PipeLineAndScatterPlot VB Define coordinate system based on data Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE Background Colors Textures and Gradients 165 pTransforml AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a bit to the auto calculated y scale pTransforml ScaleStopY 1 0 Set rotational par
217. bj GRID MAJOR xgrid SetColor Color White xgrid SetLineWidth 1 xgrid SetLineStyle DashStyle Solid chartVu AddChartObject xgrid Define the y axis grid for the XY_MAXZ PLANE Dim ygrid As New Grid xAxis yAxis ChartObj Y AXIS ChartObj GRID MAJOR ygrid SetColor Color White ygrid SetLineStyle DashStyle Solid ygrid SetLineWidth 1 chartVu AddChartObject ygrid Define the z axis grid for the YZ MINX PLANE Dim zgridl As New Grid xAxis yAxis zAxis ChartObj Z AXIS ChartObj GRID MAJOR zgridl SetColor Color White zgridl SetLineStyle DashStyle Solid zgridl SetLineWidth 1 zgridl GridAxisPlane ChartObj YZ MINX PLANE chartVu AddChartObject zgridl Define the z axis grid for the XZ MINY PLANE Dim zgrid2 As New Grid xAxis zAxis ChartObj Z AXIS ChartObj GRID MAJOR zgrid2 SetColor Color White zgrid2 SetLineStyle DashStyle Solid zgrid2 SetLineWidth 1 zgrid2 GridAxisPlane ChartObj XZ MINY PLANE chartVu AddChartObject zgrid2 Define the z axis grid for the XZ MINY PLANE Axis Grids 217 Dim bottomxgrid As New Grid xAxis zAxis ChartObj X AXIS ChartObj GRID MAJOR bottomxgrid SetColor Color White bottomxgrid SetLineStyle DashStyle Solid bottomxgrid SetLineWidth 1 bottomxgrid GridAxisPlane ChartObj XZ MINY PLANE chartVu AddChartObject bottomxgrid 10 Simple Plot Objects SimplePlot SimpleBarPlot SimpleLineMarkerPlot SimpleLinePlot SimpleRibbonPlot SimplePipelineP
218. bjects according to their z order Objects with the lowest z order values are rendered first Objects with equal z order values are rendered in the ordered they are added to the ChartView object The second method z order rendering is the default method of object rendering used by the ChartView class This default behavior can be changed by call the ChartView SetZOrderSortEnable false method Each GraphObj object has a default z order value summarized below Base Class Default z order value Comments Background 10 Backgrounds are drawn first A plot area volume background has a z value of 10 and a graph area volume background has a z value of 9 forcing graph area volume backgrounds to be drawn first Grid 40 A z value of 40 places grids under most other graph objects If you want grids on top change the z value to 150 Wall3D 10 A z value of 10 places walls under most other graph objects except for Background objects GraphObj 50 The default value for graph objects if not explicitly changed in the subclass ChartText 50 The default value for text objects ChartPlot 50 The default value for plot objects which includes SimplePlot GroupPlot and ContourPlot objects Axis 100 Chart axes are drawn after data plots AxisLabels 100 Axes labels are drawn with same priority as axes 150 The Chart View Legend 150 Legend objects usually sit on top of all other graph objects and are drawn last You can change the default z order v
219. bl As New ChartAttribute Color Blue 1 DashStyle Solid Color Blue attribl SetSymbolSize 10 Dim thePlotl As New SimpleScatterPlot pTransforml Datasetl 240 Simple Plot Objects ChartObj CUBEJD attribl chartVu AddChartObject thePlot1 Simple scatter plot example that uses SetSegmentAttributesMode to change the size and color of individual scatter plot symbols in the plot extracted from the example program ScatterPlots ScatterPoints C Define a simple scatter plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid Color Blue attribl SetSymbolSize 10 SimpleScatterPlot thePlotl new SimpleScatterPlot pTransforml Datasetl ChertOb QUBESD attribi Change the attributes of individual scatter plot points hePlotl SetSegmentAttributesMode true f t ChartAttribute segmentAttrib new ChartAttribute Color Red 1 DashStyle Solid Color Red segmentAttrib SetSymbolSize 20 hePlot1 SetSegmentAttributes 8 segmentAttrib hePlot1 SetSegmentAttributes 9 segmentAttrib E E thePlot1 SetSegmentAttributes 10 segmentAttrib thePlot1 SetSegmentAttributes 11 segmentAttrib chartVu AddChartObject thePlotl1 Visual Basic Define a simple scatter plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid Color Blue attribl SetSymbolSize 10 Dim thePlotl As New SimpleScatterPlot pTransforml Datasetl ChartObj CUBE3D attribl Change
220. c time interval that can be something less than a 24 hour day Class TimeAxis GraphObj Axis TimeAxis The TimeAxis class creates an axis with date time specific spacing between minor and major tick marks not necessarily uniform as with a LinearAxis The TimeAxis extends the Axis class Date Time Axis Minimum and Maximum The minimum and maximum values for a date time axis can have any valid date time value specified using the class ChartCalendar The axis maximum value should be later in time than the minimum Create an inverted axis by first defining an inverted physical coordinate system using the TimeCoordinates class The axis minimum and maximum do not have to fall on even time or date intervals and can assume any date compatible with the ChartCalendar class For example Starting Date and Time Ending Date and Time Range 1 1 1972 00 00 00 1 1 1999 00 00 00 27 years 11 04 1997 8 30 00 11 28 2000 8 31 22 11 04 1997 16 00 00 1 14 2001 15 14 33 Axes 183 7 hours 30 minutes 48 days 6 hours 43 minutes 11 sec Date Time Minor and Major Tick Mark Intervals The predefined date time axis tick mark constants listed below specify both major and minor tick mark spacing Date Time Axis Tick Mark Constants TIMEAXIS SOYEARIOYEAR TIMEAXIS 20YEARSYEAR TIMEAXIS 1OYEARYEAR TIMEAXIS SYEARYEAR TIMEAXIS YEAR TIMEAXIS YEARQUARTER TIMEAXIS YEARMONTH TIMEAXIS QUARTER TIMEAXIS QUARTERMONTH TIMEAXIS
221. changes to go into affect Note how the buttons are hooked into the JavaScript event handlers ChangeTitle and ChangeYMax and how they in turn interact with the properties ChartTitleText and YMax you wrote for the user control The user control in this HTML file has the id MyTestUserControl1 and the properties for the user control are accessed using that id Note that an automatic string to double conversion takes place in the case of the YMax property since YMax is a double and text2 is a string script function ChangeTitle MyTestUserControll ChartTitleText textl value function ChangeYMax MyTestUserControll YMax text2 value lt seript gt lt P gt lt input type text id textl amp nbsp amp nbsp amp nbsp input type button value Change Title onclick ChangeTitle ID Buttonl NAME Buttonl P lt P gt lt P gt lt P gt lt input type text id text2 NAME text2 gt amp nbsp lt input type button value Change Y Max onclick ChangeYMax ID Button2 NAME Button2 gt lt P gt See the complete HTML file below It is probably easier to view the IEQCChart3D HTM file in the WindowsControlLibary1 project folder lt html gt lt head gt lt title gt Embed a QCChart3D User Control In Internet Explorer lt title gt lt meta http equiv Content Language content de gt Using QCChart3D for Net to Create Web Applications 459 lt meta http equiv Content Type content
222. chitecture 37 using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently The depth of the 3D rectangle is set using the associated datasets ImplicitDepth Value property Sales vs Cost Gap _ Sales n mi The Line Gap chart is useful for emphasizing the difference between two lines Line gap plot MiscCharts LineGap LineGapPlot This class plots group data as a line gap chart The plot consists of two lines plots where a contrasting color fills the area between the two lines highlighting the difference The LineGapPlot class is a 275 D chart where the z value of the plot is fixed using the associated datasets ImplicitZV alue property The depth of the plot is set using the associated datasets ImplicitDepthValue property 38 Class Architecture Characteristic Curves for Bipolar Transistor 50 Linear ala 09 vu wend opel Collector Emitter Voltage The MultLinePlot will plot a multiple y vectors vs a single x vector Multi ribbon plots MultiLinePlots MultiLines 1 MultiRibbonPlot This class displays group data in multi line format A group dataset with four groups will display four separate line plots The y values for each line of the line plot represent the y values for each group of the group dataset Each line plot share the same x values of the group dataset The MultiRibbonPlot class is a 22 D chart where the z value of the pl
223. ciated datasets ImplicitZV alue property or as a 3D chart where the z value for every bar is set independently The depth of the 3D bars are set using the associated datasets ImplicitDepthValue property Cumulative Plot of Noise vs Time from 7 Sources 2000 1500 1000 pnydwy 500 Time The Stacked Line Plot will plot the cumulative sum of multiple y vectors vs a single x vector Stacked ribbon plots MultiLinePlots StackedLines StackedRibbonPlot This class displays data in a stacked ribbon format In a stacked ribbon plot each group is stacked on top of one another each group line a cumulative sum of the related group items before it The StackedRibbonPlot class is a 2 4 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property The depth of the ribbons are set using the associated datasets ImplicitDepthValue property Class Architecture 41 2000 1500 1000 pnydwy 500 Time Stacked line plots MultiLinePlots StackedLines StackedLinePlot This class displays data in a stacked line format In a stacked line plot each group is stacked on top of one another each group line a cumulative sum of the related group items before it The StackedLinePlot class is a 2 2 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property Pie Chart Classes It uses data organized as arrays of x and y values whe
224. cked Bar Plots seen Pee A 301 Class StackeUBarP IA sn een ee 301 Stacked Line Plots aaa 304 Class Stackedl ne Plots ee aa uud 304 Class Stacked Denk or seen ern 308 12 E e TE 313 Line and Filled Contour Plots se ae ae nes 313 Class ontaurBlOto EE 313 13 Data Markers and Data Cursors ii et cop aa 321 Data Markets E nee N 321 Class Markets to ede lee 321 Data Cursors esie ir tee eedem stu ete S tr dl 324 Class Data EE 324 14 Moving Chart Objects and Data Points e e re etre a 329 Moving Chart Objects eol o edes ento Io totae ue depre Ren 329 Cs WO VEO DY nee un Bean 329 Moving Simple Plot Object Data Points eerte tete er nat 332 Table of Contents Keeler 332 19 2 DODIBP eo vacet dele mon cba e cdi ade nd oic loc Mu n diva fuis 337 Simple Zooming of a single physical coordinate gwstem sss 337 Class DarbZ oos sen Cete aam Neb mov nu ost obe ben 337 Super Zooming of multiple physical coordinate systems ss sseseseseessessrsseessessresees 341 Limiting the Zoom Range ana na 346 16 Data TOONS sen Dein 349 Simple Data OO MIPS sense 349 NR ENEE 349 CustomToolti displays iiiter eti tU na ua 355 LT Pie Charts nasse ee ee 361 Usine the Pie Chart er re d tutus abeat tutes au d aedis 361 Glass Bur Gr ee E 361 IN EE 371 Standard Legends nose nun 371 Class Standardlegend en Re e ue dece e aes E n PER DU ue dese 371 B bble Plotb enefidss on ta etia decree DR sere a bna e umen ee e ei a um e 376 Class BubblePIotegend ossis eo
225. color and fill mode Change the ChartAttribute object using the objects SetChartObjAttributes method There is also a group of methods that set individual simple plot properties SetColor SetLineWidth and SetLineStyle The line step style is using the SetStepMode method Individual line segments in a simple line plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods Simple 2 1 2D line plot example extracted from the example program ScatterPlots ScatterPoints C TimeSimpleDataset Dataset2 new TimeSimpleDataset Second x1 y2 Create a coordinate system for the data TimeCoordinates pTransforml new TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 15 90 0 8 Set rotational parameters Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate pTransforml TheTransform3D ActualLightSource new Point3D 0 0 0 1 Set chart depth chartVu SetFractionalZViewportDepth 0 1 Create a simple line plot ChartAttribute attrib2 new ChartAttribute Color Green 2 DashStyle Solid SimpleLinePlot thePlot2 new SimpleLinePlot pTransforml Dataset2 attrib2 chartVu AddChartObject thePlot2 Visual Basic Dim Datasetl As New TimeSimpleDataset First
226. cratch taking into account the additional objects How do you zoom charts that use multiple coordinate systems How do you select a chart object and create a dialog panel that permits editing of that objects properties How do you handle missing data points in a chart How do you update a chart in real time How do I prevent flicker when updating my charts on real time How do you implement drill down or data tool tips in a chart I do not want to my graph to auto scale How do I setup the graph axes for a specific range How do I update my data and auto rescale the chart scales and axes to reflect the new data after it has already been drawn When I use the auto scale and auto axis routines my semi log chart has the logarithmic axis scaled using powers of 10 1 10 100 1000 etc as the starting and ending values or as the major tick interval for labeling How do I make my log graphs start at 20 and end at 50 000 with major tick marks at 20 200 2000 and 20000 How do I create and use custom multi line string labels as the axis labels for my graph How do I place more than one graph in a view 462 FAQs 15 16 17 18 19 20 21 22 23 How do I use your software to generate GIF files Sometimes the major tick marks of an axis are missing the associated tick mark label How do I change the order the chart objects are drawn For example I want one of my grid objects to be drawn under th
227. ct where the x values are ChartCalendar values and the y values are floating point numbers TimeGroupDataset constructors Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ Overloads Public Sub New _ ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ ByVal zvalue As Double _ ByVal depthvalue As Double _ C public TimeGroupDataset string sname ChartCalendar x double y I public TimeGroupDataset string sname ChartCalendar x double y double zvalue double depthvalue sname Specifies the name of the dataset Chart Datasets 95 x An array of ChartCalendar dates that specifies the x values of a dataset The length of the x array sets the number of columns for the group dataset y An array that specifies the y values of a group dataset where y has the dimensions number of rows number of columns The number of rows in the y array sets the number of groups in the group dataset The number of columns in the y array must match the length of the x array zvalue Sets the ImplicitZValue for the dataset The default value is 0 0 depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of columns in the group dataset is the value of x Length property The number of columns in the y array must match the length of the x array and
228. ctedPlot ChartPlot GetSelectedPlotObj if selectedPlot null Assign as the tooltip string 356 Data Tooltips this CustomToolTipString tooltipstring Custom DataToolTip example Extracted from the FinancialExamples OHLCChart example In this example a new class is derived from the CustomDataToolTip class and a custom tooltip string is defined when the overridden Draw method is called m Price Volume ma NASDAQ E m 9 Stock Data December 15 2006 esta ig Open 24 82 esl Bon 24 94 Low 24 07 Close 24 57 Volume 1471740 12 18 06 12 25 06 1 01 07 1 08 07 3 0M 4 2 0M 1 0M C ChartView chartVu class CustomToolTip CustomDataToolTip OHLCChart OHLCObj null public CustomToolTip OHLCChart component base component OHLCObj component override public void Draw Graphics g2 DefineCustomerToolTipString base Draw g2 Data Tooltips 357 public void DefineCustomerToolTipString String tooltipstring ChartPlot selectedPlot ChartPlot GetSelectedPlotObj af selectedPlot null int selectedindex GetNearestPoint GetNearestPointIndex PhysicalCoordinates transform GetSelectedCoordinateSystem tooltipstring Stock Data Xn Looking to the original arrays because we just have the selectedindex yet we want to display stock O H L C data volume and NASDAQ Only one of these datasets can be selected
229. d from top to bottom Invert the x and or y scales by swapping the scale starting and ending vaues in the call to the CartesianCoordinates or the TimeCoordinates constructor Example of inverted x scale using the CartesianCoordinates constructor C double xMin 5 double xMax 15 double yMin 0 double yMax 15 CartesianCoordinates simpleScale simpleScale new CartesianCoordinates xMax yMin xMin yMax Scaling and Coordinate Systems 141 Visual Basic Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax AS double 15 Dim simpleScale As CartesianCoordinates simpleScale New CartesianCoordinates xMax yMin xMin yMax Use the CartesianCoordinates SetCoordinateBounds method in the same manner The example below inverts the y scale simpleScale SetCoordinateBounds xMin yMax xMax yMin Invert the x and y scale of a TimeCoordinates object in an analogous fashion Example of inverted scaling using a TimeCoordinates constructor C ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY St ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 ll e double yMin double yMax 155 TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMax yMin xMin yMax Visual Basic Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUAR
230. d or BufferedImage SaveImage method is called BufferedImage constructor Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ ByVal imgformat As ImageFormat _ Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ C public BufferedImage ChartView component ImageFormat imgformat public BufferedImage ChartView component component The ChartView object that is the source for the chart image imageformat An image format object specifying the format of the rendered image Use one of the Net ImageFormat constants ImageFormat Bmp ImageFormat Jpeg ImageFormat Tif 422 File and Printer Rendering ImageFormat Gif ImageFormat Png ImageFormat Emf or ImageFormat Wmf The BufferedImage GetBufferedImage method converts the chart to the Net Bitmap object specified by the imageformat object and returns a reference the resulting bitmap BufferedImage example extracted from the example program LinePlotSalesVolume LinePlotSalesVolume C public void SaveAsFile object sender System EventArgs e ChartView chartview this String filename this Name SaveFileDialog imagefilechooser new SaveFileDialog imagefilechooser Filter Image Files BMP JPG GIF TIFF BPNG BMP JPG GIF TIFF PNG AII files prp peers imagefilechooser FileName filename if imagefilechooser ShowDialog DialogResult OK filename imagefilechooser FileName Fil
231. dd currentdate 1 weekmode double zvalue 0 0 double depthvalue 0 5 TimeGroupDataset Datasetl new TimeGroupDataset Stock Data xValues stockPriceData zvalue depthvalue Visual Basic Dim nNumPnts As Integer 50 Dim nNumGroups As Integer 4 Dim weekmode As Integer ChartObj WEEK 5D Dim xValues nNumPnts 1 As ChartCalendar Dim stockPriceData nNumGroups 1 nNumPnts 1 As Double Dim minval As Double 0 0 Dim maxval As Double 0 0 Dim i As Integer Dim currentdate As New ChartCalendar Make sure not to start on a weekend 98 Chart Datasets currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode xValues 0 currentdate Clone currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode stockPriceData 3 0 25 close StockPriceData 0 0 25 open StockPriceData 1 0 26 high stockPriceData 2 0 24 low For i 1 To nNumPnts 1 xValues i currentdate Clone tockPriceData 3 1 stockPriceData 3 2 l 3 0 52 ChartSupport GetRandomDouble close stockPriceData 0 1 stockPriceData S d 2 0 5 ChartSupport GetRandomDouble open minval Math Min stockPriceData 3 i stockPriceData 0 i maxval Math Max stockPriceData 3 i stockPriceData 0 i StockPriceData 1 i maxval 1 5 ChartSupport GetRandomDouble high stockPriceData 2 i minval 1 5 ChartSupport GetRandomDouble low currentdate Char
232. dialogs for editing chart object properties The look feel and details of such dialogs are application specific and it is up to the application programmer to provide these The property editor tables common to many packages are designed to be used by developers not end users You can add your own dialogs that edit the characteristics important to your end users If you want to select the chart object by pressing a mouse button while the cursor is on the object use the FindObj class Override the OnMouseDown method and invoke the appropriate dialog panel there Set the EditChartExample example program FAQs 471 The LineDialog and TextDialog classes are derived from System Windows Forms Form and need to be written by the programmer Sample classes are found in the EditChartExample example The sample LineDialog class uses the System Windows Forms ColorDialog to select the color of line objects The TextDialog class uses the System Windows Forms FontDialog to select the text attributes associated with a font 6 How do you handle missing data points in a chart There are two ways to handle missing or bad data The first is to mark the data point in the dataset invalid using the datasets SetValidData method The second is to set the x and or y value of the bad data point to the designated bad data value ChartObj rBadDataValue Currently this value is set equal to the value of System Double MaxValue Either method will prevent the data poi
233. dthValue ChartObj MONTH 10 0 0 attrib3 Cha rtObj JUSTIFY CENTER thePlot3 BarShapeOption ChartObj CONE3D chartVu AddChartObject thePlot3 Note how the ChartCalendar GetCalendarWidthValue method calculates the width of the bars as a function of time in this case a width of 8 months Simple bar plot example that displays numeric data values extracted from the example program Bargraphs SimpleBars C 236 Simple Plot Objects ChartAttribute attribl new ChartAttribute Color Green 0 DashStyle Solid Color Green attribl SetFillFlag true SimpleBarPlot thePlotl new SimpleBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj MONTH 8 0 0 attribl ChartObj JUSTIFY CENTER NumericLabel bardatavalue thePlotl GetPlotLabelTemplate bardatavalue SetTextFont theFont bardatavalue SetNumericFormat ChartObj CURRENCYFORMAT bardatavalue SetDecimalPos 0 bardatavalue SetColor Color White thePlotl SetPlotLabelTemplate bardatavalue thePlotl SetShowDatapointValue true chartVu AddChartObject thePlotl1 Visual Basic Dim attribl As New ChartAttribute Color Green 0 DashStyle Solid Color Green attribl SetFillFlag True Dim thePlotl As New SimpleBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj MONTH 8 0 0 attribl ChartObj JUSTIFY CENTER Dim bardatavalue As NumericLabel thePlotl GetPlotLabelTemplate bardatavalue SetTextFont
234. e pTransforml GetScaleStopX 20 Add in max height of cells Dim maxy As Double pTransforml GetScaleStopY 10 pTransforml SetScaleStopX maxx pTransforml SetScaleStopY maxy Re auto scale to produce rounded axis values pTransforml AutoScale ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR position chart in graph area pIransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 8 Set rotational parameters Dim protate As New Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 2 Define a cell plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid attribl SetFillColor Color Blue attribl SetFillFlag True Dim thePlotl As New CellPlot pTransforml Datasetl attribl thePlotl ImplicitDepthValue 0 3 For i 0 To numPoints 1 thePlotl SetSegmentColor i Color FromArgb CInt x1l i Cink tyl o i 2 0 Celia 1 1 1373 7 IIJ Next i chartVu AddChartObject thePlotl Note the use of the GroupDataset method SetAutoScaleNumberGroups This forces the auto scale routine to look at just the first group of values Y 0 because those are the only absolute position values The maximum cell width and height are calculated and added to the initial scale The auto scale function is then rerun producing a coordinate system that takes into account the widths and heights of the cells Group Plot Objects 263 Error Bar Plots
235. e ChartObj AUTOAXES FAR zoomObj SetZoomYRoundMode ChartObj AUTOAXES FAR zoomObj SetEnable true zoomObj SetZzoomStackEnable true set range limits to 1000 ms 1 degree zoomObj SetZzoomRangeLimitsRatio new Dimension3D 0 001 0 001 chartVu SetCurrentMouseListener zoomObj Visual Basic Custom zoom class that implements a zoom stack Private Class ZoomWithStack Inherits ChartZoom Public Sub New ByVal component As ChartView ByVal transform As CartesianCoordinates ByVal zpos As Double ByVal brescale As Boolean MyBase New component transform zpos brescale End Sub New Public Overrides Sub OnMouseDown ByVal mouseevent As MouseEventArgs if right mouse buggon pop zoom stack one level If mouseevent Button And MouseButtons Right 0 Then Me PopZoomStack Else Zooming 341 MyBase OnMouseDown mouseevent End If End Sub OnMouseDown End Class ZoomWithStack Set up zoom mouse listener Dim zpos As Double 0 0 Dim zoomObj As New ZoomWithStack chartVu pTransforml zpos True zoomObj SetButtonMask MouseButtons Left zoomObj SetZzoomYEnable True zoomObj SetZzoomXEnable True zoomObj SetZoomXRoundMode ChartObj AUTOAXES FAR zoomObj SetZoomYRoundMode ChartObj AUTOAXES FAR zoomObj SetEnable True zoomObj SetZzoomStackEnable True set range limits to 1000 ms 1 degree zoomObj SetZoomRangeLimitsRatio New Dimension3D 0 001 0 001 chartVu SetCurrentMouseListener zoomObj
236. e Add ChartObj MONTH 3 For i 1 To nnumpnts 1 xl i CType currentdate Clone ChartCalendar yl i yl i 1 5 i 0 75 ChartSupport GetRandomDouble zl i 0 1 i 0 02 currentdate Add ChartObj MONTH 3 Next i Dim Datasetl As New TimeSimpleDataset3D Sales xl yl z1 Datasetl ImplicitDepthValue 0 4 ContourDataset Dataset Class ContourDataset ChartObj ChartDataset SimpleDataset SimpleDataset3D ContourDataset The ContourDataset adds a third dimension z values to the x and y values of the simple dataset Use it with the SimplePlot GroupPlot and the ContourPlot class ContourDataset constructors This constructor creates a new ContourDataset object that represents a surface formed by a regular grid in the xy plane The number of objects in the Point3D array must equal rows columns and must form an even grid in the xy plane Visual Basic Overloads Public Sub New _ ByVal sname As String _ ByVal grid As Point3D _ ByVal rows As Integer _ ByVal columns As Integer _ C public ContourDataset string sname Point3DI grid 82 Chart Datasets int rows int columns This constructor creates anew ContourDataset object that represents a surface not necessarily a regular grid A triangularization alorithm calculates the interconnection of the vertices defining the surface Visual Basic Overloads Public Sub New _ ByVal sname As String _
237. e Clone stockPriceData 3 i stockPriceData 3 i 1 3 0 52 ChartSupport GetRandomDouble close stockPriceData 0 i stockPriceData 3 i 2 0 5 ChartSupport GetRandomDouble open minval Math Min stockPriceData 3 i stockPriceData 0 i maxval Math Max stockPriceData 3 i stockPriceData 0 i StockPriceData 1 i maxval 1 5 ChartSupport GetRandomDouble stockPriceData 2 i minval 1 5 ChartSupport GetRandomDouble currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode high low Chart Datasets 103 zValues i 0 3 double depthvalue 0 5 TimeGroupDataset3D Datasetl new TimeGroupDataset3D Stock Data xValues stockPriceData zValues depthvalue Visual Basic Dim nNumPnts As Integer 50 Dim nNumGroups As Integer 4 Dim weekmode As Integer ChartObj WEEK 5D Dim xValues nNumPnts 1 As ChartCalendar Dim zValues nNumPnts 1 As Double Dim stockPriceData nNumGroups 1 nNumPnts 1 As Double Dim minval As Double 0 0 Dim maxval As Double 0 0 Dim i As Integer Dim currentdate As New ChartCalendar Make sure not to start on a weekend currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode xValues 0 currentdate Clone zValues 0 0 3 currentdate ChartCalendar CalendarDaysAdd currentdate 1 weekmode stockPriceData 3 0 25 close stockPriceData 0 0 25 open StockPriceData 1 0 26 high
238. e SOFTWARE If the SOFTWARE was mailed to you return the media envelope UNOPENED along with the rest of the package to the location where you obtained it within 30 days from purchase 1 The SOFTWARE is licensed not sold 2 GRANT OF LICENSE A Developer License After you have purchased the license for SOFTWARE and have received the file containing the licensed copy you are licensed to copy the SOFTWARE only into the memory of the number of computers corresponding to the number of licenses purchased The primary user of the computer on which each licensed copy of the SOFTWARE is installed may make a second copy for his or her exclusive use on a portable computer Under no other circumstances may the SOFTWARE be operated at the same time on more than the number of computers for which you have paid a separate license fee You may not duplicate the SOFTWARE in whole or in part except that you may make one copy of the SOFTWARE for backup or archival purposes You may terminate this license at any time by destroying the original and all copies of the SOFTWARE in whatever form B 30 Day Trial License You may download and use the SOFTWARE without charge on an evaluation basis for thirty 30 days from the day that you DOWNLOAD the trial version of the SOFTWARE The termination date of the trial SOFTWARE is embedded in the downloaded SOFTWARE and cannot be changed You must pay the license fee for a Developer License of the SOFTWARE to continue to
239. e a transparent rectangle shape object and position it in 3D space Dim zdepth As Double Datasetl ImplicitZValue Dim alphaColor As Color Color FromArgb 127 170 100 50 Dim attrib2 As New ChartAttribute alphaColor 1 DashStyle Solid alphaColor attrib2 SetFillFlag True Dim linearRegionRect As New Rectangle3D 0 1 0 1 1 5 50 Dim rectpath As New GraphicsPath rectpath AddRectangle linearRegionRect GetRectangler Dim linearRegionShape As New ChartShape pTransforml rectpath ChartObj PHYS POS 0 0 0 0 zdepth ChartObj PHYS POS 0 linearRegionShape SetChartObjAttributes attrib2 chartVu AddChartObject linearRegionShape ChartShape example extracted from the example program LabeledDatapoints LabeledDatapoints C Define a line that is drawn under the title GraphicsPath titleLine new GraphicsPath titleLine AddLine 0 1f 0 1f 0 9f 0 1f ChartShape titleLineShape new ChartShape titleLine ChartObj NORM GRAPH POS 0 0 0 0 chartObj NORM GRAPH POS 0 titleLineShape SetLineWidth 3 chartVu AddChartObject titleLineShape Visual Basic Dim titleLine As New GraphicsPath titleLine AddLine 0 1F 0 1F 0 9F 0 1F Dim titleLineShape As New ChartShape titleLine ChartObj NORM GRAPH POS 0 0 0 0 ChartObj NORM GRAPH POS 0 titleLineShape SetLineWidth 3 chartVu AddChartObject titleLineShape Chart Image Class Class ChartImage GraphObj ChartImage Lines Shapes Imag
240. e all text is rendered by the Net System Drawing and Net Drawing2D classes which use the underlying TrueType and Postscript font engines for rendering These rendering engines only support 2D rendering with simple 2D translation scaling and rotation and not 3D transformations The ChartText class does some clever calculations and captures the apparent angle of the projection of the 3D text object onto the 2D screen image and rotates the Net text accordingly in 2D space The result is that when you rotate the chart about one or more axes the text will rotate with it maintaing a parallel or orthogonal angle to the axes 382 Text Classes 60 KR 50 1 0 ki 3 2 10 15 5 Lawyers 1000 employees lll Energy Companies c Gohwere Companies e Predided Line plots and Scatter plots can be used to display 2D and 3D data A rotated version of the SimpleLinePlots LinePlot3D example program In the example above note how the axes numeric labels and the axes titles rotate with the associated axis The legend and the footer do not rotate with the chart because they are not attached to the rotated charts coordinate system The text does not appear to rotate into the z axis plane though and does not appear forshortened as you will see in some software packages OpenGL for instance that support full 3D text rendering 3D forshortened text while a good visual clue for depth quickly becomes unreadable as the 3D t
241. e are more ways to format time and date information than numeric data The QCChart3D for Net software directly supports twelve time formats and eightteen date formats It is also possible to create custom date time formats The software makes use of the System DateTime ToString method to format times and dates A table listing predefined date time formats appears below Date Time Format Constant Format String Example String Result TIMEDATEFORMAT MSDDD mmm ss fff 12 33 999 TIMEDATEFORMAT MSDD mm ss ff 12 33 99 TIMEDATEFORMAT MSD TIMEDATEFORMAT MS TIMEDATEFORMAT 12HMSDD TIMEDATEFORMAT 12HMSD TIMEDATEFORMAT 12HMS TIMEDATEFORMAT 12HM TIMEDATEFORMAT 24HMDDD TIMEDATEFORMAT 24HMDD TIMEDATEFORMAT 24HMS TIMEDATEFORMAT 24HM TIMEDATEFORMAT STANDARD TIMEDATEFORMAT MDY TIMEDATEFORMAT DMY TIMEDATEFORMAT MY TIMEDATEFORMAT Q TIMEDATEFORMAT MMMM TIMEDATEFORMAT MMM TIMEDATEFORMAT M TIMEDATEFORMAT DDDD TIMEDATEFORMAT DDD TIMEDATEFORMAT D TIMEDATEFORMAT Y TIMEDATEFORMAT MDY2000 TIMEDATEFORMAT DM Y2000 mmiss f miss h mm ss ff h mm ss f h mm ss h mm H mm ss ff H mm ss f H mm ss H mm MMMMM dd yyyy M dd yy d MM yy M yy None MMMM MMM MMM dddd ddd ddd yy M dd yyyy d MM yyyy Axis Labels 201 12 33 9 12 33 11 12 33 99 11 12 33 9 11 12 33 11 12 23 12 33 90 23 12 33 9 23 12 33 23 12 December 7 2000 12 07 00 7 12 00 7 00 QI January Jan J Tue
242. e charts line plot objects and another grid object to be drawn top of the charts line plot objects How to I use a Forms scrollbar object to control horizontal scrolling of the data in my chart I am trying to plot 100 000 000 data points and it takes too long to draw the graph What is wrong with the software and what can I do to make it faster How do I get data from my database into a chart How do I use this charting software to generate chart images on the fly Can QCChart3D for Net be used to create programs that run like Java applets in web browsers Are you going to add additional real time routines to the QCChart3D for Net library Is the QCChart3D for Net software backward compatible with the Charting Tools for Windows the Graphics Class Libraries for MFC 3D or OCChart2D for Net The QCChart3D for Net software is not backward compatible with earlier Quinn Curtis non Net products It was developed explicitly for the new Net programming object oriented programming framework You should have no problems recreating any charts that you created using our older Windows software in most cases it will take far fewer lines of code The QCChart3D API was modeled on the QCChart2D API While not 100 backward compatible with it it is highly compatible See the end of Chapter 2 Class Architecture the section Differences between the QCChart2D and QCChart3D API for discussion about how to convert QCChart2D programs
243. e classes to establish proper tick mark spacing values The chart object classes includes all objects placeable in a chart That includes axes axes labels plot objects line plots bar graphs scatter plots etc grids titles backgrounds images and arbitrary shapes These classes directly and indirectly System EventHandler delegates that trap mouse events and permit the user to create and move data cursors 14 Class Architecture move plot objects display tooltips and select data points in all types of graphs File and printer rendering These classes render one or more chart images to a printer to a variety of file formats including JPEG and BMP or to a Net Image object Miscellaneous utility classes Other classes use these for data storage file I O and data processing A summary of each category appears in the following section Chart Window Classes System Windows Forms UserControl ChartView The starting point of a chart is the ChartView class The ChartView class derives from the Net System Windows Forms UserControl class where the UserControl class is the base class for the Net collection of standard components such as menus buttons check boxes etc The ChartView class manages a collection of chart objects in a chart and automatically updates the chart objects when the underlying window processes a paint event Since the ChartView class is a subclass of the UserControl class it acts as a container for oth
244. e numeric values in SimpleDataset SimpleDataset3D GroupDataset and GroupDataset3D objects Linear scales and axes use it for auto scale calculations LogAutoScale This class calculates scaling values based on the numeric values in SimpleDataset GroupDataset and GroupDataset3D objects Logarithmic scales and axes use it for auto scale calculations TimeAutoScale This calculates scaling values based on the ChartCalendar values in TimeSimpleDataset TimeSimpleDataset3D TimeGroupDataset and TimeGroupDataset3D objects Date time scales and axes use it for auto scale calculations 20 Class Architecture Chart Object Classes Chart objects are graph objects that can be rendered in the current graph window This is in comparison to other classes that are purely calculation classes such as the coordinate conversion classes All chart objects have certain information in common This includes instances of ChartAttribute and PhysicalCoordinates classes The ChartAttribute class contains basic color and line style information for the object while the PhysicalCoordinates maintains the coordinate system used by object The majority of classes in the library derive from the GraphObj class each class a specific charting object such as an axis an axis label a simple plot or a group plot Add GraphObj derived objects axes plots labels title etc to a graph using the ChartView AddChartObject method GraphObj This class is the abstract base class
245. e out dataset as a CSV file under a different file name Datasetl WriteGroupDataset csvDataFile GroupDataset2 csv Visual Basic Dim csvDataFile As CSV New CSV Dim Datasetl As GroupDataset _ New GroupDataset csvDataFile GroupDataset csv 0 0 Write out dataset as a CSV file under a different file name Datasetl WriteGroupDataset csvDataFile GroupDataset2 csv Class GroupDataset3D ChartObj ChartDataset GroupDataset GroupDataset3D Chart Datasets 91 The GroupDataset3D class represents group data where every x value has one or more y values and a z value The number of x values in a group plot is referred to as the number of columns or as numberDatapoints and the number of y values for each x value is referred to as the number of rows or numberGroups Think of spreadsheet file that looks like x values x 0 y values group 0 y 0 0 y values group 1 y 1 0 y values group 2 y 2 0 z values z 0 x 1 y 0 1 yL 1 yl2 1 z 1 x 2 y 0 2 y 1 2 y 2 2 z 2 x 3 y 0 3 y 1 3 y 2 3 z 3 x 4 y 0 4 y 1 4 y 2 4 z 4 number of x values numberDatapoints numberColumns 6 x 5 y 0 5 y 1 5 y 2 5 z 5 number of y values for each x value numberGroups numberRows 3 This would be the ROW MAJOR format if the data were stored in a CSV file GroupDataset constructors Visual Basic Overloads Public Sub New ByVal sname As Stri
246. e system TimeSimpleDataset A subclass of SimpleDataset it uses ChartCalendar dates a wrapper around the System DateTime value class as the x values and floating point numbers as the y values Like the SimpleDataset class it uses a single z value set using the property ImplicitZValue that applies to all xy data pairs in the dataset It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons SimpleDataset3D A subclass of SimpleDataset it adds an array of z values to the x and y values of the simple dataset Unlike the SimpleDataset and TimeSimpleDataset the SimpleDataset3D class represents true 3D data points where every data point is characterized by a unique x y and z value It also includes a property ImplicitDepth Value that is used to set the depth of 3D data objects such as 3D bars and ribbons TimeSimpleDataset3D A subclass of TimeSimpleDataset it adds an array of z values to the x and y values of the TimeSimpleDataset The class represents true 3D data points where every data point is characterized by a unique x y and z value It also includes a property ImplicitDepthValue that is used to 16 Class Architecture ContourDataset GroupDataset GroupDataset3D TimeGroupDataset TimeGroupDataset3D set the depth of 3D data objects such as 3D bars and ribbons A subclass of SimpleDataset3D it adds a polysurface structure that organiz
247. e than 50 years of hourly historical information associated with them A chart comparing the relative performance of General Electric IBM Dupont Ford and Kodak compared to the Dow Jones Industrial average since the dawn of the computer age in 1950 will quickly highlight the above average stock market gains that can be made by investing in the right stocks A user may start by looking at a fifty year window on a stock then through successive zoom operations narrow the window to two years one month one day one hour and perhaps even one minute 5 vs 7 Day Work Weeks Historically western cultures use a five day workweek Much of the data suitable for charting includes data for only the workdays of Monday through Friday excluding weekends Data associated with financial markets is the most common Stocks trade on Monday through Friday excluding weekends and holidays In the display of financial market information it is not useful and in many cases misleading to scale a graph using a seven day work week and then only plot data using five of the seven days The gaps left in the chart waste valuable chart space For line plots if a line is drawn from the last data point on Friday to the first data point on Monday the result gives a visual impression that the trend from Friday to Monday lasted two days Friday midnight to Sunday midnight when in fact it may have only lasted minutes The QCChart3D for Net date time scaling axes and auto ax
248. eDataset class that make it easy to create and modify datasets that use ChartCalendar values It has two main constructors The following constructor creates a time dataset using the x and y values stored in arrays TimeSimpleDataset constructors Visual Basic Overloads Public Sub New _ ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ Overloads Public Sub New _ ByVal sname As String _ ByVal x As ChartCalendar ByVal y As Double _ ByVal zvalue As Double _ ByVal depthvalue As Double C public TimeSimpleDataset string sname ChartCalendar x double y double zvalue double depthvalue public TimeSimpleDataset String sname ChartCalendar x double y sname Specifies the name of the dataset x An array that specifies the ChartCalendar x values of a dataset y An array that specifies the y values of a dataset The length of the y array must match the length of the x array zvalue Sets the ImplicitZValue for the dataset The default value is 0 0 74 Chart Datasets depthvalue Sets the ImplicitDepth Value for the dataset The default value is 0 1 The number of data points is the value of x Length property The x and y arrays must be the same length and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped The next co
249. eInfo fileinformation new FileInfo filename String fileext fileinformation Extension fileext fileext ToUpper ImageFormat fileimageformat if fileext BMP fileimageformat ImageFormat Bmp else if fileext JPG fileext JPEG fileimageformat ImageFormat Jpeg else if fileext GIF fileimageformat ImageFormat Gif else if fileext TIF fileext TIFF fileimageformat ImageFormat Tiff else if fileext PNG fileimageformat ImageFormat Png else fileimageformat ImageFormat Bmp BufferedImage savegraph new BufferedImage chartview fileimageformat File and Printer Rendering 423 savegraph Render savegraph Savelmage filename Visual Basic Public Sub SaveAsFile ByVal sender As Object ByVal e As System EventArgs Dim chartview As ChartView Me Dim filename As String Me Name Dim imagefilechooser As New SaveFileDialog imagefilechooser Filter Image Files BMP JPG GIF TIFF PNG BMP JPG GIF TIFF PNG All files P28 5 5 imagefilechooser FileName filename If imagefilechooser ShowDialog DialogResult OK Then filename imagefilechooser FileName Dim fileinformation As New FileInfo filename Dim fileext As String fileinformation Extension fileext fileext ToUpper Dim fileimageformat As ImageFormat If fileext BMP Then fileimageformat ImageFormat Bmp Else If fileext JPG Or
250. each bubble with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property is not used When a bubble plot is attached to a 3D dataset each bubble is not restricted to a z axis plane and can traverse 3D space unrestricted A bubble can take one of two forms the first is a disk shapped object the second is a sphere shapped object o gt E E oy FA a A r E a o Time of bankruptcy Bubble plot sphere mode ScatterPlots BubbleChart Group Plot Objects 253 BubblePlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset ByVal bubblesizetype As Integer ByVal attrib As ChartAttribute Ct public BubblePlot PhysicalCoordinates transform GroupDataset dataset int bubblesizetype ChartAttribute attrib transform dataset bubblesizetype attrib The coordinate system for the new bubble plot object A group dataset specifying the location and size of the bubbles in the bubble plot The number of groups must be two The dataset values for X and Y 0 set the position of the center of each bubble and the values for Y 1 set the size of each bubble either the area SIZE BUBBLE AREA or the radius SIZE BUBBLE RADIUS Sets whether the circle representing each bubble plot has a radius or an area proportional to the Y 1 data values in
251. econd case the tick mark origin is 0 88769 The tick mark origin is an important property because often it should not be the minimum value of the axis but rather some intermediate value between the minimum and maximum value of the axis In the example above the data may range from 0 88769 to 19 9 and the chart is to have exactly that range It is still appropriate that the tick mark origin be set to 0 0 rather than the axis minimum value of 0 88769 The tick mark origin should reside in the bounds defined by the axis minimum and maximum inclusive of the endpoints It does not need to be near an endpoint however For example an axis with endpoints 16 to 19 should use a minor tick mark interval of 1 0 or 2 0 a major tick mark interval of 5 0 or 10 0 and a tick mark origin of 0 0 Usually if the axis minimum and maximum bracket 0 0 i e the axis minimum is less than or equal to 0 0 and the axis maximum is greater than or equal to 0 0 the best tick mark origin to use is 0 0 Creating a Linear Axis There are two main constructors for LinearAxis objects The first LinearAxis constructor assumes that the axis extents match the extents of the underlying coordinate system transform The second LinearAxis constructor sets the axis extents to the specified minimum and maximum values regardless of the underlying coordinate system LinearAxis constructors Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinat
252. ects Set rotate parameters pTransforml AbsRotateCoordinateSystem New Point3D 10 20 0 Set chart depth chartVu SetFractionalZViewportDepth 0 3 Define attributes for stacked line plot Dim attribl As New ChartAttribute Color Black 1 DashStyle Solid Color Blue Dim attribArray numGroups As ChartAttribute For i 0 To numGroups 1 attribArray i CType attribl Clone ChartAttribute Next i attribArray 0 SetFillColor Color Blue attribArray 1 SetFillColor Color Yellow attribArray 2 SetFillColor Color Magenta attribArray 3 SetFillColor Color Orange attribArray 4 SetFillColor Color Gray attribArray 5 SetFillColor Color Red attribArray 6 SetFillColor Color Green Define a stacked line plot Dim thePlotl As New StackedLinePlot pTransforml Datasetl attribArray chartVu AddChartObject thePlotl Class StackedRibbonPlot GraphObj ChartPlot GroupPlot StackedRibbonPlot The StackedRibbonPlot class extends the GroupPlot class and displays data in stacked line format In a stacked ribbon plot each group is stacked on top of one another each group ribbon a cumulative sum of the groups before it The stacked ribbon plot is used with a 2 2 D dataset the position of the each ribbon with respect to the z axis is set using Group Plot Objects 309 the attached datasets ImplicitZValue property The datasets ImplicitDepthValue sets the 3D depth of the ribbon Stac
253. ength property The x y and z arrays must be the same length and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped The next constructor creates a dataset using the x y and z values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the x values the second column the y values and the third colum the z values If you use the ROW_MAJOR format the first row represents the x values the second row the y values and the third row the z values Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation Visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String ByVal rowskip As Integer E ByVal columnskip As Integer _ Ct public SimpleDataset3D Cov esy string filename int rowskip int columnskip CSV An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the first value from the row 72 Chart Datasets You can retrieve references to the internal arrays used to store the data using the SimpleDataset3D methods GetXData GetYData and GetZData Chan
254. ented by the bar is only a small point at the top The tooltip algorithm searches for an intersection of the bar and the mouse cursor not an intersection of the data point and the mouse cursor If a hit on the bar is detected the data values represented by the bar are used as the values displayed in the tooltip The tooltip symbol will highlight the actual data point at the top of the bar The tooltip window will always popup at the cursor location not the data point location If you click anywhere on a bar the tooltip window will popup at that location and display the data value represented by the top of the bar The tooltip data point search algorithm works with both simple and group data When used with simple plot objects SimpleLinePlot SimpleBarPlot etc it locates the xy data point associated with the mouse event When used with group plot objects it locates 350 Data Tooltips the x value and the y group value associated with the mouse event It is able to differentiate between stacked group plot objects StackedBarPlot StackedLinePlot and the other group plot objects that are not stacked GroupBarPlot MultiLinePlot OHLCPlot CandlestickPlot etc The tooltip values displayed in the tooltip window reflect the actual data values stored in the associated dataset and do not reflect the implicit summation that goes on in the display of stacked plot objects You should not use symbols to highlight the tooltip data point for stacked
255. ependent on the chart coordinate system including the 3D rotational transforms that the coordinate system goes through before it is rendered to the screen Examples are shapes and images that must maintain a fixed relationship to physical coordinates of the charts plotting area In this example you use a constructor that has as a parameter the coordinate system that you want the shape or image to rotate with Other times you will want the opposite to be true even though the chart can be rotated you want certain shapes and images to remain fixed with respect to the screen viewport of the ChartView window Examples of this are the shapes used to highlight chart titles and images used as background objects All of the chart shape and image classes have versions that do NOT require that you pass in a coordinate system as the first parameter In this case a default Cartesian coordinate system is created for that object and that coordinate system is NOT rotated when the other coordinate systems of the chart are rotated You can position the chart shape or image using either a plot area normalized NORM PLOT POS or graph area normalized NORM GRAPH POS coordinate system 402 Lines Shapes Images and Arrows Generic Shape Class Class ChartShape GraphObj ChartShape The ChartShape class places arbitrary GraphicsPath objects in a chart If the shape includes absolute positioning information use 0 0 as the xy position parameters of the sh
256. epresents true 3D data where every data point can have a unique x y and z data value It uses ChartCalendar dates as the x values and floating point numbers as the y and z values ChartCalendar values are actually stored internally as their equivalent millisecond values The TimeSimpleDataset class adds a large number of methods to the SimpleDataset class that make it easy to create and modify datasets that use ChartCalendar values It has two main constructors The following constructor creates a time dataset using the x and y values stored in arrays 78 Chart Datasets TimeSimpleDataset3D constructors visual B Overloads ByVal ByVal ByVal ByVal Overloads ByVal ByVal ByVal ByVal ByVal Ct asic Public Sub New _ sname As String _ x As ChartCalendar y As Double _ z As Double _ Public Sub New _ sname As String _ x As ChartCalendar y As Double _ z As Double _ depthvalue As Double public TimeSimpleDataset3D string ChartC sname alendar x Il y double O z double double depthvalue public TimeSimpleDataset3D string sname ChartCalendar x double y double z sname Specifies the name of the dataset x An atray that specifies the ChartCalendar x values of a dataset y An array that specifies the y values of a dataset The length of the y array must match the length of the x array Z An array that specifies the z
257. er Net components too Data Classes ChartDataset SimpleDataset SimpleDataset3D ContourDataset TimeSimpleDataset TimeSimpleDataset3D GroupDataset GroupDataset3D TimeGroupDataset TimeGroupDataset3D Class Architecture 15 The dataset classes organize the numeric data associated with a plotting object There are two major types of data supported by the ChartDataset class The first major type is collection of simple xy and or z data values where for every x value there is a unique y value and either a fixed z value as in the case of the SimpleDataset and TimeSimpleDataset classes or a unique z value as in the case of the SimpleDataset3D and TimeSimpleDataset3D classes The second major type is group data where every x value can have one or more y values and a fixed or unique z value ChartDataset The abstract base class for the other dataset classes It contains data common to all of the dataset classes such as the x value array the number of x values the dataset name and the dataset type SimpleDataset Represents simple xy data where for every x value there is one y value The dataset uses a single z value set using the property ImplicitZValue that applies to all xy data pairs in the dataset It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons This type of dataset is often referred to as 2 2 D since it is used to place 2D data in a 3D coordinat
258. er plots WebsiteStats The example displays summary web site information in four separate windows amp Introduction WindowsControlLibrary1 The example embeds a ChartView derived chart in a web page for viewing with Internet Explorer ZoomExamples Zooming simple linear axes super zooming of multiple axes zooming of time data based data ASP Net Holds ASP Net examples specific directory VBChart3DAspWebApp ASP Net Web application VBChart3DHTMLAspApp ASP Net App in HTML page VBChart3DWebApplicationl Tutorial example program for ASP Net web application There are two versions of the QCChart3D class library the 30 day trial versions and the developer version Each version has different characteristics that are summarized below 30 Day Trial Version The trial version of QCChart3D for Net is downloaded as a zip file named Trial QCChart3DR10x zip Once you download the zip file you un zip it to a local hard drive and run the Setup exe program from the resulting QCChart3DInstall folder The 30 day trial version stops working 30 days after you run the Setup exe program for the first time The trial version includes a trial version message in the upper right corner of the graph window that cannot be removed Developer Version The developer version of QCChart3D for Net is downloaded as a zip file name something similar to NETCH3DDEV1R1x0x353x1 zip Once you download the zip file you un zip it to a local ha
259. er of rows or numberGroups Think of spreadsheet file that looks like x values x 0 x 1 x 2 x 3 x 4 x 5 y values group 0 y 0 0 y 0 1 y 0 2 y 0 3 y 0 4 y 0 5 y values group 1 y 1 0 y L1 v L2 y L3 yl14 y L5 y values group 2 y 2 0 y 2 1 y 2 2 yI23 Al yI2 5 number of x values numberDatapoints numberColumns 6 number of y values for each x value numberGroups numberRows 3 This would be the ROW_MAJOR format if the data were stored in a CSV file 88 Chart Datasets GroupDataset constructors Visual Basic Overloads Public Sub New ByVal sname As String ByVal x As Double _ ByVal y As Double _ Overloads Public Sub New ByVal sname As String ByVal x As Double _ ByVal y As Double _ ByVal zvalue As Double _ ByVal depthvalue As Double C public GroupDataset string sname double x double y public GroupDataset string sname double x double y double zvalue double depthvalue sname Specifies the name of the dataset x An array that specifies the x values of a group dataset The length of the x array sets the number of columns for the group dataset y An array that specifies the y values of a group dataset where y has the dimensions number of rows number of columns The number of rows in the y array sets the number of groups in the group dataset The number of columns in the y array must match the length of the x array zv
260. erty ErrorBarPlot This class displays group data as error bars Error bars are two parallel planes positioned about a data point that signify the statistical error associated with the data point The ErrorBarPlot class can plot the error bars as a 275 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every set of error bars is set independently The depth of the planes is set using the associated datasets ImplicitDepthValue property 34 Class Architecture Media Schedule WSJ DSP Journal EDN z w e D N PC Mag Computer Week Info Age 2003 Feb Mar Apr May Jun Jul Aug Dec Year of 2003 Floating bars or cylinders are useful for creating scheduling charts Floating bar plot using the cylinder option Bargraphs FloatingBars FloatingBarPlot This class displays free floating bars and cylinders in a graph The bars and cylinders are free floating because each bar does not reference a fixed base value as do simple bar plots stacked bar plots and group bar plots The FloatingBarPlot class can plot the bars as a 27 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently The depth of the 3D rectangle is set using the associated datasets ImplicitDepthV alue property Temperature and Precipitation
261. es ByVal axtype As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal axtype As Integer _ ByVal minval As Double _ ByVal maxval As Double C public LinearAxis PhysicalCoordinates transform int axtype public LinearAxis PhysicalCoordinates transform int axtype double minval double maxval Axes 171 transform Places the axes in the coordinate system defined by transform axtype Specifies if the axis is an x axis X_AXIS y axis Y_AXIS or a z axis Z_AXIS minval Sets the minimum value for the axis maxval Sets the maximum value for the axis Other axis properties minor tick mark spacing number of minor tick marks per major tick mark axis intercept tick mark lengths tick mark direction and axis tick mark origin are automatically calculated using an auto axis method Set these properties explicitly if you need to override the automatically calculated values SetAxisIntercept and SetAxisIntercept2 methods The SetAxisIntercept and SetAxisIntercept2 methods set the two intercepts needed to position an axis The coordinates they apply to depends on the axis X_AXIS SetAxisIntercept sets the y intercept of the x axis SetAxisIntercept2 sets the z intercept of the x axis 172 Axes Y AXIS SetAxisIntercept sets the x intercept of the y axis SetAxisIntercept2 sets the z intercept of the y axis Z AXIS SetAxisIntercept sets the x intercep
262. es a grid of 3D data points as a surface This class is used exclusively with the ContourPlot class Represents group data where every x value can have one or more y values The dataset uses a single z value set using the property ImplicitZValue that applies to all xy data groups in the dataset This type of dataset is often referred to as 2 4 D since it is used to place 2D data in a 3D coordinate system It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons A subclass of GroupDataset it adds an array of z values to the x and y values of the group dataset The class represents true 3D data points where every data point is characterized by a unique x y and z value It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons ribbons A subclass of GroupDataset it uses ChartCalendar dates a wrapper around the System DateTime value class as the x values and floating point numbers as the y values Like the SimpleDataset class it uses a single z value set using the property ImplicitZValue that applies to all xy data pairs in the dataset It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons A subclass of TimeGroupDataset it adds an array of z values to the x and y values of the group dataset The class represents tr
263. es and Arrows 405 The ChartImage class will place a System Drawing Image object anywhere in a chart It can be a small element of the chart inside or outside of the plot area volume or it can be sized to fill the plot area volume or graph area volume and used as a background object While the position of the image object can specified using 3D coordinates and the image can move with the chart when rotated the image itself does not undergo 3D transformations and will always be displayed as a flat and rectangular image with respect to the screen ChartImage constructor Visual Basic Overloads Public Sub New ByVal ByVal ByVal ByVal ByVal ByVal ByVal transform As PhysicalCoordinates aimage As Image _ x As Double _ y As Double _ z As Double _ npostype As Integer _ rotation As Integer _ Overloads Public Sub New _ ByVal ByVal ByVal ByVal ByVal ByVal aimage As Image _ x As Double _ y As Double _ z As Double _ npostype As Integer _ rotation As Integer _ Overloads Public Sub New ByVal ByVal ByVal ByVal ByVal ByVal transform As PhysicalCoordinates aimage As Image _ x As Double _ y As Double _ npostype As Integer _ rotation As Integer _ Overloads Public Sub New _ ByVal ByVal ByVal ByVal ByVal aimage As Image _ x As Double y As Double _ npostype As Integer _ rotation As Integer _ 406 Lines Sh
264. es classes support dropping weekends as an option from the scale One minute after Friday midnight is 12 01 AM Monday morning Non 24 Hour Days Similarly a full day of time stamped data may not fill an entire 24 hour day Financial markets have specific trading hours For example the NYSE is open from 9 30 AM EST to 4 00 PM EST Stocks traded on the NYSE will have a time stamp in this time range Plotting NYSE stock data for several days using data points sampled every fifteen Scaling and Coordinate Systems 127 minutes will result in large gaps in a traditional chart where 2 3 of the day stock trading is inactive It is possible to treat the unused portion of the day in a manner analogous to weekends It is possible to eliminate unused hours and minutes of a day from the chart coordinate system The QCChart3D for Net coordinate system allows the programmer to specify a starting and ending time for a days worth of data In the NYSE stock market example the starting time is 9 30 AM EST and the ending time is 4 00 PM EST Any data outside of this range is invalid and not plotted In terms of the resulting chart one minute after 4 30 PM is 9 31 AM Combine the starting and ending time parameters with the option of deleting weekends from consideration and one minute after 4 30 PM Friday is 9 31 AM Monday Non Uniformity of Date Time Tick Marks There even more complications associated with date time scales The axis that delineates a date
265. es object using the multiple datasets C ChartCalendar xData new ChartCalendar 1996 ChartObj FEBRUARY 5 new ChartCalendar 1996 ChartObj MARCH 5 new ChartCalendar 1996 ChartObj APRIL 5 new ChartCalendar 1996 ChartObj MAY 5 new ChartCalendar 1996 ChartObj JUNE 5 new ChartCalendar 1996 ChartObj JULY 5 new ChartCalendar 1996 ChartObj AUGUST 5 new ChartCalendar 1996 ChartObj SEPTEMBER 5 new ChartCalendar 1996 ChartObj OCTOBER 5 new ChartCalendar 1996 ChartObj NOVEMBER 5 Scaling and Coordinate Systems 133 double II yDatal 10 22 33 44 55 46 33 25 14 9 double yData2 20 12 43 54 15 26 63 25 24 19 double yD ata3 30 52 13 64 25 76 13 35 24 19 double zvaluel 0 0 double zvalue2 0 3 double zvalue3 0 6 double depthvalue 0 2 All of the datasets reference the same xData array of ChartCalendar dates though this does not have to be the case TimeSimpleDataset datasetl new TimeSimpleDataset Sales1 xData yDatal zvaluel depthvalue TimeSimpleDataset dataset2 new TimeSimpleDataset Sales2 xData yData2 zvalue2 depthvalue TimeSimpleDataset dataset3 new TimeSimpleDataset Sales3 xData yData3 zvalue3 depthvalue TimeSimpleDataset datasetsArray new TimeSimpleDataset 3 datasetsArray 0 datasetl datasetsArray 1 dataset2 datasetsArray 2 dataset3 TimeCoo
266. esides roughly centered in 106 Scaling and Coordinate Systems the graph area volume The border around the plot area volume is sized large enough to display the axis tick mark labels axis titles legends chart titles footers and any other object in the graph Create a physical coordinate system for a chart and you are setting the minimum and maximum values for the x y and z dimensions of the plot area volume Most chart objects require access to the chart coordinate system for proper positioning in the chart window Some chart objects axis objects in particular often reside on the edge or outside of the plot area volume Important parts of the axis the tick marks and tick mark labels are usually outside of the plot area volume The tick marks and tick mark labels must align perfectly with the coordinate system inside the plot area volume There are many different techniques to align the coordinate system inside the plot area volume with the coordinate system used in drawing chart objects outside of the plot area volume One technique is to maintain the physical coordinate system inside the plot area volume and use a normalized coordinate system for the graph area volume Whenever a chart object in the graph area volume a y axis tick mark for example needs to be aligned with the coordinate system inside the plot area volume the software converts the tick mark placement value from physical coordinates to normalized coordinates using sta
267. esigner Do not modify it using the code editor System Diagnostics DebuggerStepThrough Private Sub InitializeComponent components New System ComponentModel Container End Sub End Region End Class e Critical Step Make sure you add the following lines to the top of the UserChartControll cs code to resolve the QCChart3D and other graphics classes used in the example Imports com quinncurtis chart3dnet Imports System Drawing Imports System Drawing Drawing2D e Build the Solution Build Build Solution This will compile the UserControl1 class and generate the WindowsControlLibrary1 DLL file If the project fails to compile you need to go back and check the previous steps Using QCChart3D for Net to Create Web Applications 455 e You can add as many custom chart controls as you need for the given HTML page you plan to display charts in Each custom chart control will inherit from the com quinncurtis chart3dnet ChartView control Or e Optional You can create inherited controls from the UserChartControll class that you already created Create an inherited control by selecting Project Add Inherited Control Give the inherited control a unique name 1 e UserInheritedControll When you select Open choose UserControll in the Inheritance Picker The result is new control added to the project Build the solution and the UserInheritedControll control will be added to the WindowsControlLibrary1 DLL in addition to the Use
268. et lib subdirectory and select the QCChart3DNet DLL View the UserControll cs code Change the base class of UserControll to com quinncurtis chart3dnet ChartView The C form code should now look like namespace WindowsControlLibraryl lt summary gt Summary description for UserControll lt summary gt public class UserControll com quinncurtis chart3dnet ChartView lt summary gt Required designer variable lt summary gt private System ComponentModel Container components null public UserControll This call is required by the Windows Forms Form Designer InitializeComponent TODO Add any initialization after the InitForm call lt summary gt Clean up any resources being used lt summary gt protected override void Dispose bool disposing 450 Using QCChart3D for Net to Create Web Applications if disposing if components null components Dispose base Dispose disposing e Critical Step Make sure you add the following lines to the top of the UserChartControll cs code to resolve the QCChart3D and other graphics classes used in the example using System Drawing Drawing2D using com quinncurtis chart3dnet e Build the Solution Build Build Solution This will compile the UserControl1 class and generate the WindowsControlLibrary1 DLL file If the project fails to compile you need to go back and check the previous s
269. et the bar plots BarShapeOption property to a cylinder CYLINDER3D d or e xz oO H B a o 302 Group Plot Objects Stacked bar plots Bargraphs GroupBargraphs StackedBarPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rbarwidth As Double ByVal rbarbase As Double _ ByVal attribs As ChartAttribute ByVal nbarjust As Integer _ C public StackedBarPlot PhysicalCoordinates transform GroupDataset dataset double rbarwidth double rbarbase ChartAttribute attribs int nbarjust transform The coordinate system for the new StackedBarPlot object dataset The stacked bar graph represents the values in this group dataset rbarwidth The width of the stacked bars in units of the independent axis rbarbase The stacked bars start at the value rbarbase and extend to the group bar values represented by the dataset attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset that specify the attributes outline color and fill color for each group of a stacked bar graph nbarjust The stacked bars are justified with respect to the x values in the dataset using the rbarjust justification value JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX Each stacked bar can be labeled with the group value bar using the bar data point methods see the example be
270. et5 ChartObj AUTOAXES FAR ChartObj AU Define a zoom object using a custom zoom class double zpos 0 0 CartesianCoordinates transformArray pTransforml pTransform2 pTransform3 pTransform4 pTransform5 ZoomWithStack zoomObj new ZoomWithStack chartVu transformArray zoomObj SetButtonMask MouseButtons Left zoomObj SetZzoomYEnable true zoomObj SetZzoomXEnable true zoomObj SetZoomXRoundMode ChartObj AUTOAXES FAR zoomObj SetZoomYRoundMode ChartObj AUTOAXES FAR zoomObj SetEnable true zoomObj SetZzoomStackEnable true chartVu SetCurrentMouseListener zoomObj Visual Basic Private Class ZoomWithStack Inherits ChartZoom Public Sub New ByVal component As ChartView ByVal transforms As CartesianCoordinates TOAXES FAR zpos true Zooming ByVal n As Integer ByVal brescale As Boolean MyBase New component transforms brescale End Sub New Public Overrides Sub OnMouseDown ByVal mouseevent As MouseEventArgs If mouseevent Button And System Windows Forms MouseButtons Right lt gt 0 Then Me PopZoomStack Else MyBase OnMouseDown mouseevent End If End Sub OnMouseDown End Class ZoomWithStack Create 5 datasets Dim Datasetl As New SimpleDataset First xl yl Dim Dataset2 As New SimpleDataset Second x1 y2 Dim Dataset3 As New SimpleDataset Third x1 y3 Dim Dataset4 As New SimpleDataset Fourth xl y4 Dim Dataset5 As New SimpleDataset Fifth x1 y5
271. etFractionalZViewportDepth 0 1 define color attributes the group plot Dim attribl As New ChartAttribute Color Red 1 DashStyle Solid Color Red Dim attrib2 As New ChartAttribute Color Yellow 1 DashStyle Solid Color Yellow Dim attrib3 As New ChartAttribute Color Blue 1 DashStyle Solid Color Blue Dim attrib4 As New ChartAttribute Color Green 1 DashStyle Solid Color Green Dim attribArray As ChartAttribute attribl attrib2 attrib3 attrib4 create a group bar plot Dim thePlotl As New GroupBarPlot pTransforml Datasetl _ ChartCalendar GetCalendarWidthValue ChartObj YEAR 0 75 _ 0 0 attribArray ChartObj JUSTIFY CENTER thePlotl SetBarOverlap 0 0 chartVu AddChartObject thePlot1l Histogram Plots Class HistogramPlot GraphObj ChartPlot GroupPlot HistogramPlot The HistogramPlot class extends the GroupPlot class and displays histogram plots A histogram plot is a collection of rectangular objects with independent positions widths and heights specified using the values of the associated group dataset The number of groups must be two The X values of the group dataset represent the x position of the lower left corner of each histogram bar the Y 0 values set the height of each histogram bar and the Y 1 values set the width of each histogram bar The histogram bars share a common base value When used with a 2 D dataset the position of the each bar with respect to the z axis is set using
272. ethod triangulates data into a surface ContourDataset datasetl new ContourDataset Contour Dataset pointarray This method uses the characteristic that the data is an even spaced grid ContourDataset dataset2 new ContourDataset Contour Dataset pointarray nrows ncols Visual Basic Dim nrows As Integer 11 Dim ncols As Integer 11 ll o Dim count As Integer Dim i j As Integer Dim x y z As Double Dim tempx tempy As Double Dim startx As Double 6 0 Dim starty As Double 6 0 Dim stepx As Double 12 0 nrows 1 Dim stepy As Double 12 0 ncols 1 Dim pointarray nrows ncols 1 As Point3D X startx y starty For i 0 To nrows 1 x Sta rtx For j 0 To ncols 1 pointarray count New Point3D tempx x 1 75 ChartSupport GetRandomDouble 0 5 tempy y 1 75 ChartSupport GetRandomDouble 0 5 z 2000 950 Math Sin Math Sqrt tempx tempx tempy tempy pointarray count SetLocation tempx tempy z 86 Chart Datasets x stepx count 1 Next j y stepy Next i datasetl New ContourDataset Contour Dataset pointarray This method uses the characteristic that the data is an even spaced grid Dim dataset2 As ContourDataset _ New ContourDataset Contour Dataset pointarray nrows ncols Example of creating a contour dataset from a function C ContourDataset datasetl null class ZValueFunctionClass SurfaceFunction
273. every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ C public TimeGroupDataset CSV csv string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the time values and subsequent 96 Chart Datasets columns represent the y values where each column is a group If you use the ROW MAJOR format the first row represents the time values and subsequent rows represent the y values where each row is a group Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation A DateTimeFormatInfo object and a date time format string in the CSV class control the interpretation of the ChartCalendar values The format in the file must match the format specified for the CSV class The underlying conversion mechanism calls the DateTime ToString String formatstring DateTimeFormatInfo info method for the conversion
274. evice units or pixels by default If the data point is within the threshold and as long as the moue buttons is held down it tracks the mouse Release the mouse button and the data value associated with the Moving Objects and Data Points 333 selected data point updates to reflect the new physical coordinates of the data point and the plot is redrawn Since the algorithm searches through every data point of every plot object in the view do not expect it to work particularly fast with millions or even thousands of data points The practical number of data points that can be searched is obviously dependent on the speed of the host computer When an object is moved its movement is restricted to the XY plane The position of the object retains its starting z position value MoveData constructors Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ ByVal transform As PhysicalCoordinates ByVal buttonmask As MouseButtons _ C public MoveData ChartView component PhysicalCoordinates transform MouseButtons buttonmask component A reference to the ChartView object that the chart is placed in transform The PhysicalCoordinates object associated with the MoveData object buttonmask Specifies the mouse button that is trapped to invoke a move Create the MoveData object and then install it using the ChartView SetCurrentMouseListener method This adds the MoveData object as a MouseListener to the ChartV
275. explode value for cooresponding segment SLO e 5 97 LG 9 2 ALL 2 25 yl l 9 9 x1 2 3 5 yl 2 0 0 St 4 2 sl e 9 9 XIRI 3 7 yil4 0 0 Define atttribute for each pie segment black outline with color fill for i 0 i lt numPoints i attribs i new ChartAttribute Color Black 1 DashStyle Solid colorArray i Define pie chart dataset SimpleDataset Datasetl new SimpleDataset First xl yl Datasetl ImplicitDepthValue 0 2 Datasetl ImplicitZValue 0 4 Create a default cartesian coordinate system CartesianCoordinates pTransforml new CartesianCoordinates Position the pie inside the graph area pTransforml SetGraphBorderDiagonal 0 1 1 9 0 9 Set rotational parameters Point3D protate new Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate Pie Charts 365 Define background Background backgroundl new Background pTransforml ChartObj GRAPH BACKGROUND Color FromArgb 0 120 70 Color FromArgb 0 40 30 ChartObj Y AXIS chartVu AddChartObject backgroundl Define the pie chart PieChart thePlotl new PieChart pTransforml Datasetl sPieStrings attribs Chart0bj PIELABEL OUTSLICE ChartObj PIELABEL STRINGNUMVAL thePlotl SetStartPieSliceAngle 45 Define the numeric template for the pie chart segment values NumericLabel labeltemplate new NumericLabel labeltemplate SetNumericFormat ChartObj CURRENCYFORMAT
276. ext is rotated into the z axis of the screen by more than 30 degrees Also true 3D rendering of text must be handled outside of the Net TrueType and PostScript rendering engines and results in poor quality text and slow rendering speeds on both the screen and the printer Simple Text Classes Class ChartText GraphObj ChartText Text Classes 383 The ChartText class is the base class for all text output classes The ChartText class formats and places text in a chart Position the ChartText objects using any of the coordinate systems Rotate and justify the text vertically and horizontally Insert a CR carriage return ASCII 13 character at line breaks for multiline text The most common constructors are ChartText constructors Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String _ ByVal x As Double _ ByVal y As Double _ ByVal npostype As Integer _ ByVal xjust As Integer _ ByVal yjust As Integer _ ByVal rotation As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String _ ByVal x As Double ByVal y As Double _ ByVal npostype As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String _ ByVal x As Double _ ByVal y As Double _ ByVal z As Double _ ByVal nposty
277. f the contour plot uses contour lines CONTOUR LINE filled contour regions CONTOUR FILL or both CONTOUR LINEANDFILL Contour plots that use the CONTOUR FILL algorithm require one more color than the CONTOUR LINE algorithm The attributes for each contour line can set or modified using the SetSegment methods where the segment number parameter cooresponds to the contour value index These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Contour line plot example extracted from the example program ContourPlots ContourLinePlot C double contourlevels 0 300 600 900 1200 1500 1800 2100 2400 2700 3000 3300 3600 pTransforml new CartesianCoordinates 7 7 0 7 7 3000 pTransforml SetGraphBorderDiagonal 0 10 10 8 0 85 CreateRegularGridPolysurface Contour Plotting 317 ChartAttribute attribs new ChartAttribute numcontourlevels t1 for i20 i lt numcontourlevels i Color color Color FromArgb int 255 ChartSupport GetRandomDouble int 255 ChartSupport GetRandomDouble int 255 ChartSupport GetRandomDouble attribs i new ChartAttribute Color Black 1 DashStyle Solid color attribs i SetFillFlag true attribs i SetLineFlag true attribs i SymbolSize 160 attribs 0 SetColor Color Black attribs 1 SetColor Color Blue attribs 2 SetColor Color DarkGray attribs 3 Se
278. fferent scale objects ChartScale derived are installed for converting physical x y and z coordinate values into working coordinate values This class is a subclass of the PhysicalCoordinates class and implements a coordinate system used to plot linear logarithmic and semi logarithmic graphs This class is a subclass of the PhysicalCoordinates class and implements a coordinate system used to plot GregorianCalenar time based data Class Architecture 19 This class consolidates the common line and fill attributes as a single class Most of the graph objects have a property of this class that controls the color line thickness and fill attributes of the object ChartAttribute This class consolidates the common line and fill attributes associated with a GraphObj object into a single class Auto Scaling Classes AutoScale LinearAutoScale LogAutoScale TimeAutoScale Usually programmers do not know in advance the scale for a chart Normally the program needs to analyze the current data for minimum and maximum values and create a chart scale based on those values Auto scaling and the creation of appropriate axes with endpoints at even values and well rounded major and minor tick mark spacing is quite complicated The AutoScale classes provide tools that make automatic generation of charts easier AutoScale This class is the abstract base class for the auto scale classes LinearAutoScale This calculates scaling values based on th
279. for Net to Create Web Applications 447 easier to wire up the controls on a WebForm page using the aspx cs behind code as opposed to doing it on an HTML page The drawback is that the entire page is redrawn when anything is posted causing a momentary flash when the chart is redraw Using the HTML approach the chart is redrawn without the flash making it a better method for real time applications Embedding a QCChart3D Object into Internet Explorer In order to embed a QCChart3D object into Internet Explorer the client must have the QCChart3DNet DLL installed in the system GAC Global Assembly Cache This gives the DLL the necessary security clearance to run in a browser Perform the following steps e Locate the Gacutil exe found in your Visual Studio installation program and copy it to our Quinn Curtis DotNet Lib e Run Gacutil exe from the DOS prompt while you are in the Quinn Curtis DotNet Lib directory using the following command line Gacutil i QCChart3 DNet DLL You will find an endless source of information about the GAC on the web and there is no need to repeat it Here is a starting point http www codeproject com dotnet DemystifyGAC asp In general you should not be installing any of our Net DLL s in the system GAC unless you have an overriding reason to so In general our Net DLLs should just be distributed as part of an application program and would normally reside in the same folder as the application programs
280. forml Dataset2 attrib2 attrib21 thePlot2 BarWidth 0 6 chartVu AddChartObject thePlot2 VB Create datasets Dim Datasetl As New SimpleDataset First xl yl Dim Dataset2 As New SimpleDataset Second xl y2 0 1 0 2 Dim Dataset3 As New SimpleDataset Third x1 y3 0 9 0 1 Define coordinate system based on data Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Dataset3 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a bit to the auto calculated y scale pTransforml ScaleStopY 1 0 Set rotational parameters pTransforml AbsRotateCoordinateSystem New Point3D 10 10 0 Set chart depth chartVu SetFractionalZViewportDepth 0 2 Simple Plot Objects 231 Define second plot as a pipeline plot Dim attrib2 As New ChartAttribute Color LightGreen 3 DashStyle Solid Color LightGreen Dim attrib21 As New ChartAttribute Color Blue 1 DashStyle Solid Color Blue Dim thePlot2 As New PipeLinePlot pTransforml Dataset2 attrib2 attrib21 thePlot2 BarWidth 0 6 chartVu AddChartObject thePlot2 Simple Bar Plots Class SimpleBarPlot GraphObj ChartPlot SimplePlot SimpleBarPlot The SimpleBar Plot class is a subclass of the SimplePlot class and displays data in a 3D bar format Individual bars the maximum value of which corresponds to the y values of the dataset display justified with respect to the x
281. from the HTML page to the ASP page In some of our other examples we use a key string that specifies which stocks we want to plot Using the behind code page you can query some database and get the data values from there without passing the data through the HTML page In our Chart3DHTMLAspApp and Chart3DAspWebApp examples we assume the data is generated on the server Once the chart is create and available as a ChartView object use the BufferedImage class to render the chart as a JPEG file and stream the image back in the response stream of the requesting HTML page private void Page Load object sender System EventArgs e Get Input from HTML ASP page request 436 Using QCChart3D for Net to Create Web Applications String widthstring Request Params Get 0 String heightstring Request Params Get 1 String XDataString Request Params Get 2 String YDataString Request Params Get 3 int imagewidth int Parse widthstring int imageheight int Parse heightstring ChartView chartVu GetInitializeChart XDataString YDataString imagewidth imageheight Stream chart back as a JPeg image BufferedImage chartimage new BufferedImage chartVu ImageFormat Jpeg Response ContentType image jpeg chartimage Savelmage Response OutputStream e Build the Solution Build Build Solution and resolve any errors that might have crept in This example was not designed to be a standalone application You can
282. ge the values in the data using these references You can also modify a point at a time using one of the SetDataPoint methods If you need to add new points to a dataset increasing its size use one of the AddDataPoint or InsertDataPoint methods Delete data points using the DeleteDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method The indexed accessor property of the SimpleGroupDataset will get or set a datapoint as a Point3D object Example of creating simple datasets from numeric arrays Visual Basic Dim x1 As Double 10 20 30 40 50 Dim yl As Double 9 21 20 40 30 Dim zl As Double 0 5 0 5 0 5 0 5 0 5 Dim depthvalue As Double 0 4 Dim Datasetl As new SimpleDataset3D First xl yl zl depthvalue C double x1 110 20 30 40 50 double y1 9 21 20 40 30 double Lb st 10 5 0 5y 0 5 0 59 0 514 double depthvalue 0 4 SimpleDataset3D Datasetl new SimpleDataset3D First xl yl z1 depthvalue Simple Date Time Dataset Class TimeSimpleDataset ChartObj ChartDataset SimpleDataset TimeSimpleDataset Chart Datasets 73 The TimeSimpleDataset uses ChartCalendar dates as the x values and floating point numbers as the y values ChartCalendar values are actually stored internally as their equivalent millisecond values The TimeSimpleDataset class adds a large number of methods to the Simpl
283. gel searchEnginesl searchPhrases1 Rectangle3D placement new Rectangle3D 0 0 0 0 0 0 width height depth new Rectangle3D 0 5 0 0 0 0 width height depth File and Printer Rendering 419 new Rectangle3D 0 0 0 50 0 0 width height depth new Rectangle3D 0 5 0 50 0 0 width height depth if printobj null printobj new ChartPrint components placement private void menultem2 Click object sender System EventArgs e if printobj null initializePrintChart printobj PageSetupItem sender e private void menuItem3 Click object sender System EventArgs e if printobj null initializePrintChart printobj DoPrintDialog private void menuItem4 Click object sender System EventArgs e if printobj null InitializePrintChart printobj PrintPreviewItem sender e private void menultem5 Click object sender System EventArgs e if printobj null initislizsePrintCbart 0 printobj DocPrintPage sender e VB Dim printobj As ChartPrint 420 File and Printer Rendering Private Sub InitializePrintChart Dim inset As Double 0 025 Dim width As Double 0 45 Dim height As Double 0 45 Dim depth As Double 0 0 Dim components As ChartView viewsAndVisitsl bandwidthUsagel searchEnginesl searchPhrasesl Dim placement As Rectangle3D New Rectangle3D inset inset 0 0 width height depth New Rectangle3D 0 5 inset inset
284. ges and text A copy of a concrete instance of the PhysicalCoordinates class is stored in every GraphObj derived object This includes all axes plot objects text objects and data markers When a chart object draws itself it uses the viewport and the physical coordinate system stored in its instance of a PhysicalCoordinates class A chart can have one or more instances of the PhysicalCoordinates since a single chart can plot data against one or more physical coordinate systems Scaling and Coordinate Systems 109 Important numeric considerations Value limiting A chart should be scaleable to any numeric range that a user wants to plot This incorporates the entire range of floating point numbers support under Net A range of 10 30 is just as valid as a range of 10 30 even though there is 60 orders of magnitude of difference A user can attempt to plot data with an extremely large dynamic range the 10 30 range in a chart scaled for an extremely small range the 10 30 range The resulting user coordinate values resulting from such an extreme case can easily exceed the numeric range supported by the plotting functions Bad value checking Invalid data often finds its way into chart Invalid data can take many different forms The most obvious is the introduction of numeric values that do not fit the Net floating point format These types of numbers are often found in databases and representing non initialized or improperly ini
285. h imageheight Stream chart back as a JPeg image BufferedImage chartimage new BufferedImage chartVu ImageFormat Jpeg get your binary image data here Response ContentType image jpeg chartimage Savelmage Response OutputStream 434 Using QCChart3D for Net to Create Web Applications private ChartView GetInitializeChart String XDataString String YDataString int imagewidth int imageheight double xvalues 0 1 2 3 4 5 double yvalues 3 7 2 5 11 13 ChartView chartVu new ChartView String xdata XDataString Split String ydata YDataString Split s for int i20 i lt xdata Length i xvalues i double Parse xdata i yvalues i double Parse ydatali Set size of view to match the size of target image for best rendering chartVu Size new Size imagewidth imageheight Font theFont new Font SansSerif 10 FontStyle Bold SimpleDataset Datasetl new SimpleDataset First xvalues yvalues CartesianCoordinates pTransforml new CartesianCoordinates pTransforml AutoScale Dataset1 ChartObj AUTOAXES_NEAR ChartObj AUTOAXES NEAR pTransforml SetGraphBorderDiagonal 0 15 15 90 0 90 Background graphbackgroundl new Background pTransforml ChartObj GRAPH BACKGROUND Color White chartVu AddChartObject graphbackgroundl LinearAxis xAxisl new LinearAxis pTransforml ChartObj X AXIS xAxisl SetColor Color Black chartVu AddChart
286. h low close plots candlestick plots arrow plots histogram plots cell plots and bubble plots GroupPlot This class is an abstract base class for all group plot classes 30 Class Architecture Flow Analysis Stealth Project s1e19IN Meters The size position and direction of every arrow in an arrow plot is under program control Arrow plot ScatterPlots ArrowChart ArrowPlot This displays a collection of arrows as defined by the data in a group dataset The position size and rotation of each arrow in the collection is independently controlled Class Architecture 31 amem d ini xi BubbleChart SimpleScatter ScatterPoints CellPlotChart ArtowChart LabeledDatapoints BushGuardRecords RealGDPGrowth ScatterPiot3D Growth in Real GDP per Head The area of each bubble represents a country s population O Sub Saharan Africa Bubble plot disk mode Example program ScatterPlots RealGDPGrowth Bubble Size 40 Million Bubble plot sphere mode ScatterPlots BubbleChart 32 Class Architecture BubblePlot This displays bubble plots as either disks or spheres in a 3D view The BubblePlot class can plot the bubbles as a 2 4 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bubble is set independently The values in the dataset specify the position and size of each bubble in a bubble cha
287. hartObj DATA TOOLTIP OHLC datatooltip SetToolTipSymbol toolTipSymbol datatooltip SetEnable True chartVu SetCurrentMouseListener datatooltip Data Tooltips 355 Custom Tooltip displays It would be impossible to provide options for all possible tooltip displays The DataToolTip class includes an option that enables the programmer to override the existing behavior of the class The programmer is able to use the built in search routines to identify what plot object is selected the dataset the coordinate system and the actual data values associated with the plot object Using this information the programmer can customize the text displayed in the ChartText object used to display the tooltip text Use the following steps to create a custom tooltip See the FinancialExamples OHLCChart for the complete example e Subclass the CustomDataToolTip class with one of your own class CustomToolTip CustomDataToolTip ChartText stockpanel e Write your own constructor for the class calling the base constructor public CustomToolTip OHLCChart component base component OHLCObj component e Override the Draw event and build the string that you want displayed as the custom tooltip and assign that string to the CustomToolTipString property override public void Draw Graphics g2 f DefineCustomerToolTipString base Draw g2 public void DefineCustomerToolTipString String tooltipstring ChartPlot sele
288. hartObject thePlot1 Group Plot Objects 289 Multi Line Plots Class MultiLinePlot GraphObj ChartPlot GroupPlot MultiLinePlot The MultiLinePlot class extends the GroupPlot class and displays group data in multi line format A group dataset with eight groups will display eight separate line plots The y values for each group of the dataset are the y values for each line in the plot Each line plot share the same x values of the group dataset When used with a 2 2 D dataset the position of all of the lines with respect to the z axis is set using the attached datasets ImplicitZV alue property The datasets ImplicitDepthValue is ignored since a simple line plot has no depth 20 yw wend 10931109 eo 20 10 Collector Emitter Voltage Multi line plot same as MultilinePlots MultiLines 1 MultiLinePlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal attribs As ChartAttribute C public MultiLinePlot PhysicalCoordinates transform GroupDataset dataset 290 Group Plot Objects ChartAttribute attribs transform The coordinate system for the new MultiLinePlot object dataset The multi line plot represents the values in this group dataset attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset t specify the attributes line color
289. he AddGroupDataPoints or InsertGroupDataPoints methods Delete data points using the DeleteDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method Example of creating a group datasets from numeric arrays C double xl 10 20 30 40 50 double Iyl fi 9 21 29 40 30 Soy Ty SS p10 88 115 25 15 30 40 1 double Llgle 1 10 1 0 2 0 3 0 4 0 5917 double depth 0 5 GroupDataset3D Datasetll new GroupDataset3D First xl yl zl depth Visual Basic Dim xl As Double 10 20 30 40 50 Dim yl As Double 119 21 20 40 30 _ 55 Ube 354 I9 Deb US 258 18 30 403 Dim zl As Double 10 1 0 2 0 3 0 4 0 5 Dim depth As Double 0 5 Dim Datasetl As New GroupDataset3D First xl yl zl depth 94 Chart Datasets Date Time Group Dataset Class TimeGroupDataset ChartObj ChartDataset GroupDataset TimeGroupDataset The TimeGroupDataset class represents group data where every x value can have one or more y values It uses ChartCalendar dates as the x values and floating point numbers as the y values ChartCalendar values are actually stored internally as their equivalent millisecond values The TimeGroupDataset class adds a large number of methods to the GroupDataset class that make it easy to create and modify datasets that use ChartCalendar values This constructor creates a new group TimeGroupDataset obje
290. he pipeline plot is similar to a line plot except that the line is replaced by a 3D cylinder object with the added dimension of depth Data points are connected using the cylinder A spherical object connects adjacent pipes in the pipeline plot 8 e MBAs 1000 employees Pipeline plot SimpleLinePlots PipelineAndScatterPlot PipeLinePlot contructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As SimpleDataset ByVal attrib As ChartAttribute Simple Plot Objects 229 ByVal symbolattrib As ChartAttribute C public PipeLinePlot PhysicalCoordinates transform SimpleDataset dataset ChartAttribute attrib ChartAttribute symbolattrib transform The coordinate system for the new PipeLinePlot object dataset The ribbon plot represents the values in this dataset attrib Specifies the attributes color of the cylinder part of the pipeline plot symbolattrib Specifies the attributes color of the connecting sphere symbol of the pipeline plot The radius of the cylinder is set using the PipeLinePlot s BarWidth property The radius of the cylinder is set relative to the x dimension regardless of the orientation of the pipeline cylinders This means if the x dimension uses a time scale you must set the radius of the cylinder in time coordinates which is in milliseconds This is demonstrated in the FinancialExamples OHLCPlot example program A Ch
291. he units of the coordinate system scale at right angles to the axis Specify an intercept value outside of the normal scale range to offset the axes so that they do not overlap The example below extracted from the MultipleAxes MultiAxisChart example creates one x axis common to all of the charts because the x scaling for all of the coordinate systems match and five y axes one for each of the five different coordinate systems Cf ChartView chartVu this pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform2 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform3 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform4 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform5 new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE SimpleDataset Datasetl new SimpleDataset First x1 y1 0 5 0 0 SimpleDataset Dataset2 new SimpleDataset Second x1 y2 0 5 0 0 SimpleDataset Dataset3 new SimpleDataset Third x1 y3 0 5 0 0 SimpleDataset Dataset4 new SimpleDataset Fourth x1 y4 0 5 0 0 SimpleDataset Dataset5 new SimpleDataset Fifth x1 y5 0 5 0 0 pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransform2 AutoScale Dataset2 ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR FAQs 4
292. hod Visual Basic Public Sub SetAxisLabelsFormat ByVal format As Integer _ c public void SetAxisLabelsFormat int format font rotation labdir decimal labelends labcolor format The font object used to display the axis label text The rotation in degrees of label text in the normal viewing plane The justification of the axis label AXIS MIN or AXIS MAX with respect to the tick mark endpoint Sets the number of digits to the right of the decimal point for numeric axis labels Ignored for time axis labels The color of the label text Sets the numeric format for the axis labels Use one of the time format constants TIMEDATEFORMAT MSDDD TIMEDATEFORMAT MSDD TIMEDATEFORMAT MSD TIMEDATEFORMAT MS TIMEDATEFORMAT 12HMSDD TIMEDATEFORMAT 12HMSD TIMEDATEFORMAT 12HMS TIMEDATEFORMAT 12HM TIMEDATEFORMAT 24HMSDD TIMEDATEFORMAT 24HMSD TIMEDATEFORMAT 24HMS TIMEDATEFORMAT 24HM TIMEDATEFORMAT STANDARD TIMEDATEFORMAT MDY TIMEDATEFORMAT DMY TIMEDATEFORMAT MY TIMEDATEFORMAT Q TIMEDATEFORMAT MMMM TIMEDATEFORMAT MMM TIMEDATEFORMAT M TIMEDATEFORMAT DDDD TIMEDATEFORMAT DDD TIMEDATEFORMAT D TIMEDATEFORMAT Y TIMEDATEFORMAT MDY2000 TIMEDATEFORMAT DM Y2000 TIMEDATEFORMAT MY2000 TIMEDATEFORMAT Y2000 204 Axis Labels Simple time axis labels example C Define a Time coordinate system ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY ChartCalendar
293. ializeChart e Define the chart by customizing the UserChartControl2 InitializeChart method Our example has copied the initialization code from the SimpleScatter class in the ScatterPlots example e You should be able to compile the project without error No chart will be visible yet The Form1 Load will only be called at runtime e You should now be able to compile run and view the entire project Any changes you make in the UserChartControl2 form will be reflected in the application 24 Using QCChart3D for Net to Create Web Applications There are two ways you can integrate the QCChart3D library in your web pages the first is to serve up an image file created using QCChart3D from the server and the second is to actually embed a QCChart3D UserControl derived from our ChartView class in the HTML web page In the first method you use a Image component in either a HTML web page or in an ASP Net page The source URL for the image component can either be an image file or a URL address to an ASP page that serves up the image file as a stream The QCChart3D library includes a BufferedImage class that renders a ChartView chart as a memory bitmap and will output that image to a file or a stream The image file or stream can be in any image format supported by the Net System Drawing Imaging ImageFormat class The second method embedding a QCChart3D ChartView derived object in an HTML page is made possible because we eliminated the lice
294. ic Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 105 Dim simpleScale As CartesianCoordinates New CartesianCoordinates simpleScale SetCoordinateBounds xMin yMin xMax yMax Example of explicit scaling of a CartesianCoordinates object using the CartesianCoordinates SetCoordinateBounds method with explicit 3D scaling for the x y and z dimension C double xMin 5 double xMax 15 double yMin 0 double yMax 105 double zMin 0 double zMax 10 CartesianCoordinates simpleScale new CartesianCoordinates simpleScale SetCoordinateBounds xMin yMin zMin xMax yMax zMax Visual Basic Dim xMin As Double 5 Dim xMax As Double 15 120 Scaling and Coordinate Systems Dim yMin As Double 0 Dim yMax As Double 105 Dim zMin As Double 0 Dim zMax As Double 10 Dim simpleScale As CartesianCoordinates New CartesianCoordinates simpleScale SetCoordinateBounds xMin yMin zMin xMax yMax zMax It is possible to scale the bounds of the coordinate system based on the data values in a dataset There are constructors and methods that take a single dataset and others that take an array of datasets Example of auto scaling a CartesianCoordinates object using a single dataset C double Data 11 2 3 4 5 5 7 9 9 10 double yData 10 22 33 44 55 46 33 25 14 9 double zvalue 0 0 double depthvalue 1 0 Sim
295. ick mark spacing 5 minute major tick mark spacing 1 minute minor tick mark spacing 2 minute major tick mark spacing 1 minute minor tick mark spacing 1 minute major tick mark spacing 1 minute major tick mark spacing 30 second minor tick mark spacing 1 minute major tick mark spacing 15 second minor tick mark spacing 1 minute major tick mark spacing 10 second minor tick mark spacing 1 minute major tick mark spacing 5 second minor tick mark spacing 1 minute major tick mark spacing 2 second minor tick mark spacing 1 minute major tick mark spacing 1 second minor tick mark spacing 30 second major tick mark spacing 1 second minor tick mark spacing 15 second major tick mark spacing 1 second minor tick mark spacing 10 second major tick mark spacing 1 second minor tick mark spacing 186 Axes TIMEAXIS SSECONDSECOND 5 second major tick mark spacing 1 second minor tick mark spacing TIMEAXIS 2SECONDSECOND 2 second major tick mark spacing 1 second minor tick mark spacing TIMEAXIS SECOND 1 second major tick mark spacing Sunday is the first day of the week for 7 day weeks while Monday is the first day of the week for 5 day weeks It may not be immediately obvious but the major tick marks for date time scales do not necessarily fall on equal intervals If the tick marks are set to the TIMEAXIS MONTHDAY value there may be 28 29 30 or 31 days between each months major tick mark In most cases the major tick
296. ics part of the API is a combination of the features found in the Win32 graphics API and those in the Java API Most of the programming features found in the Java Graphics2D API are duplicated in one form or another in Net API While the Java graphics classes are more extensive and in many cases more elegant than those in Net Microsoft did a good job of providing a core set of classes that allow most Java applications to be ported to Net Features found in the Microsoft Net API and used in the QCChart3D for Net library include the following Arbitrary line thickness and line styles for lines Gradients fill patterns and color transparency for solid objects Generalized geometry support used to create arbitrary shapes Printer and image output support Improved font support for a large number of fonts using a variety of font styles size and rotation attributes Imaging support for a large number of image formats e Advanced matrix support for handling 2D transformations QCChart3D for Net Dependencies The QCChart3D for Net class library is self contained It uses only standard classes that ship with the Microsoft Net API The software uses the major Net namespaces listed below System Windows Forms Namespace The System Windows Forms namespace contains classes for creating Net Forms Controls and Dialog boxes Introduction 3 System Drawing Namespace The System Drawing namespace provides access to GDI basic graphics f
297. id xAxis yAxis ChartObj Y AXIS ChartObj GRID MINOR FAQs 481 grid2 SetZOder 150 Grid is drawn after ChartPlot objects which have default z value of 50 chartVu AddChartObject grid2 Visual Basic Dim chartVu As ChartView new ChartView Dim gridl As Grid new Grid xAxis yAxis ChartObj Y AXIS ChartObj GRID MAJOR gridl SetZOrder 40 This is actually the default value for the grid z order chartVu AddChartObject gridl Dim grid2 As Grid new Grid xAxis yAxis ChartObj Y AXIS ChartObj GRID MINOR grid2 SetZOder 150 Grid is drawn after ChartPlot objects which have default z value of 50 chartVu AddChartObject grid2 18 How to I use a ScrollBar object to control horizontal scrolling of the data in my chart Since the ChartView class is derived from UserControl you can place the scroll bar in the ChartView object or you can place the ChartView object and the scroll bar in a parent container and use a layout manager to position everything If you place the scroll bar in the ChartView you can still position it using a layout manager The ChartView will always use the entire content area of the underlying UserControl for its canvas and the scroll bars will sit on top of this not side by side The example program FormControlExamples LinePlotScrollBar uses two scroll bars a horizontal scroll bar to control scrolling of the x axis and a vertical scroll bar that controls the magnitude of the y axis You
298. ies the attributes line and fill color for the fill area A segment between adjacent x values in the line gap plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Group Plot Objects 287 Line gap bar plot example extracted from the example program MiscCharts LineGap C Simulate data int nNumPnts 5 nNumGroups 2 ChartCalendar xValues new ChartCalendar nNumPnts double groupBarData new double nNumGroups nNumPnts xValues 0 new ChartCalendar 1998 ChartObj JANUARY 1 groupBarData 0 0 43 groupBarData 1 0 71 xValues 1 new ChartCalendar 1999 ChartObj JANUARY 1 groupBarData 0 1 40 groupBarData 1 1 81 xValues 2 new ChartCalendar 2000 ChartObj JANUARY 1 groupBarData 0 2 54 groupBarData 1 2 66 xValues 3 new ChartCalendar 2001 ChartObj JANUARY 1 groupBarData 0 3 62 groupBarData 1 3 55 xValues 4 new ChartCalendar 2002 ChartObj JANUARY 1 groupBarData 0 4 75 groupBarData 1 4 49 Create a group dataset TimeGroupDataset Datasetl new TimeGroupDataset GroupTimeData xValues groupBarData Datasetl ImplicitDepthValue 1 0 Define a coordinate system pTransforml new TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES FAR Define the line gap plot ChartAttribute attribl ne
299. iew object Enable Disable the function using MoveData SetEnable method Call MoveData SetCurrentMouseListener null to remove the object as a mouse listener for the chart view Set the threshold distance for deciding if the nearest data point found is a hit using the MoveData SetHitTestThreshold method Moving datapoints example Extracted the example LabeledDatapoints LabeledDatapoints A more complicated example involving a custom mouse move object is found in the MouseListeners MoveDatapoints example program 334 Moving Chart Objects and Data Points History Test Results 100 90 o S o 80 8 o 70 0 5 10 15 20 Student Individual data points can be automatically labeled You can move the data points with the mouse LabeledDatapoints LabeledDatapoints C ChartView chartVu this Create a 3D dataset ContourDataset Datasetl new ContourDataset First x1 yl z1 Create a coordinate system to match data CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add a custom mouse listener that calculates new averages whenever the data is changed MoveData mouselistener new MoveData this pTransforml mouselistener SetMarkerType ChartObj MARKER CROSS mouselistener SetMarkerSize 12 mouselistener SetMoveMode ChartObj MOVE Y mouselistener SetEnable true ch
300. ike the simple plane walls created using the Background class the Wall3D class defines walls as true 3D objects with height width and depth 22 Class Architecture Production of Green Bars is Up SUOMI Bars Cylinders Cones co o o nN e st Te ei e e e e o o e o o gg o eo eo e e e o ae ur N A CN N N CN CN Bar plots can be represented using solid bars cyliners or cones Data values can be displayed for each bar This example combines a graph area background with three Wall3D objects LightBlue Bargraphs SimpleBars Axis Classes Axis LinearAxis LogAxis TimeAxis Creating a PhysicalCoordinates coordinate system does not automatically create a set of X y and z axes Axes are separate charting objects drawn with respect to a specific PhysicalCoordinates object The coordinate system and the axes do not need to have the same limits In general the limits of the coordinate system should be greater than or equal to the limits of the axes The coordinate system may have limits of 0 to 15 while you may want the axes to extend from 0 to 10 Class Architecture 23 Widget Tolerances by Worker Click on one of the buttons below to change the x axis range 13 600 13 0K a 100 12 1000 12 0K 11 400 10 11 0K 0 9 200 10 0K 8 7 o 1000 9 0K 0 20 40 60 80 100 Event Partition Graphs can have an UNLIMITED number of x and y axes Example program MultipleAxes MultiAxesChart Axis Th
301. ile run and view the entire project Any changes you make in the UserChartControl2 form will be reflected in the application Visual CZ for Net If you do not already have an application program project create one using the Visual Studio project wizard File New Project Visual C Projects Windows Application On the left select a project type of Visual C Projects Give the project a unique name our version of this example is UserChartExamplel You will end with a basic Form based application For purposes of this example the chart will placed in the initial default form Add a User Control class to the project Project Add User Control Enter a class name of UserChartControl2 We choose UserChartControl2 to keep it from conflicting with our own UserChartControll example Right click on Reference in the Solution Explorer window and select Add Reference Browse to the Quinn Curtis DotNet lib subdirectory and select the QCChart3DNet DLL 428 Using QCChart3D for Net to Create Windows Applications e View the UserChartControl2 cs code Change the base class of UserChartControl2 to com quinncurtis chart3dnet ChartView This adds a local version of the control to the project The C form code should now look like namespace UserChartExamplel Summary Summary description for UserChartView summary public class UserChartControl2 com quinncurtis chart3dnet ChartView e Critical Step Make sure you add the following
302. ill color of the candlestick lines when the close value is greater than the open value An individual candlestick in a candlestick plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Candlestick plot example extracted from the example program FinancialExamples CandlestickChart C Create a group dataset to hold stock data double zvalue 0 0 double depthvalue 0 1 TimeGroupDataset Datasetl new TimeGroupDataset Stock Data xValues stockPriceData zvalue depthvalue Define a coordinate system to hold data pTransforml new TimeCoordinates Set coordinate system for 5 day week pTransforml SetWeekType ChartObj WEEK 5D pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR f Position chart in graph area pTransforml SetGraphBorderDiagonal 0 13 15 90 0 8 Set rotational parameters Point3D protate new Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a candlestick plot ChartAttribute defaultattrib new ChartAttribute Color Black 1 DashStyle Solid Color White defaultattrib SetFillFlag true 258 Group Plot Objects ChartAttribute fillattrib new ChartAttribute Color Black 1 DashStyle Solid Color Red fillattrib SetFillFlag true Candles
303. im zpos As Double 0 0 Dim amarker As Marker New Marker pTransforml ChartObj MARKER BOX _ xpos ypos zpos 10 ChartObj PHYS POS theChartView AddChartObject amarker See the example MouseListeners DataCursors for a more complex example combining data cursors and markders Click and drag the mouse releasing the mouse near a data point 30 20 10 0 0 0 2 0 4 0 6 0 8 1 0 MouseListeners DataCursors Data Cursors Class DataCursor GraphObj Marker DataCursor Data Markers and Data Cursors 325 Data cursors are an extension of the marker class Data cursors combine the Net mouse event delegates with the Marker class creating a marker that tracks the mouse and updates dynamically using an XOR drawing mode This constructor creates a new DataCursor object using the specified coordinate system marker type and marker size Data cursors are restricted to the XY plane The z value of the data cursor is specified using the data cursors ImplicitZValue property DataCursor constructor Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ ByVal transform As PhysicalCoordinates ByVal zpos As Double _ ByVal nmarkertype As Integer _ ByVal rsize As Double C public DataCursor ChartView component PhysicalCoordinates transform double zpos int nmarkertype double rsize component A reference to the ChartView object that the chart is placed in transf
304. in xMax yMax 118 Scaling and Coordinate Systems Visual Basic Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 105 Dim simpleScale As CartesianCoordinates simpleScale New CartesianCoordinates xMin yMin xMax yMax CartesianCoordinates constructor with explicit 3D scaling for the x y and z dimension C double xMin 5 double xMax 15 double yMin 0 double yMax 105 double zMin 0 double zMax 10 CartesianCoordinates simpleScale simpleScale new CartesianCoordinates xMin yMin zMin xMax yMax zMax Visual Basic Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 105 Dim zMin As Double 0 Dim zMax As Double 10 Dim simpleScale As CartesianCoordinates simpleScale New CartesianCoordinates xMin yMin zMin xMax yMax zMax Another technique uses the default constructor and scales the coordinates using the CartesianCoordinates SetCoordinateBounds method Scaling and Coordinate Systems 119 Example of explicit scaling of a CartesianCoordinates object using the CartesianCoordinates SetCoordinateBounds method using the default 0 0 to 1 0 z dimenstion scale C double xMin 5 double xMax 15 double yMin 0 double yMax 105 CartesianCoordinates simpleScale new CartesianCoordinates simpleScale SetCoordinateBounds xMin yMin xMax yMax Visual Bas
305. in this group dataset attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset specify the attributes line color and line style for each group of the stacked line graph The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Stacked line plot example extracted from the example program MultiLinePlots StackedLines C int numPoints 100 int numGroups 7 double x1 new double numPoints double yl new double numGroups numPoints Initialize data theFont new Font SansSerif 10 FontStyle Bold GroupDataset Datasetl new GroupDataset First x1 yl Datasetl SetStackMode ChartObj AUTOAXES STACKED CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransforml SetScaleStartX 0 pTransforml SetScaleStartY 0 Background background new Background pTransforml ChartObj PLOT BACKGROUND Color FromArgb 255 255 255 7 chartVu AddChartObject background pTransforml SetGraphBorderDiagonal 0 15 15 90 0 75 Define axes axes labels and grids Group Plot Objects 307 ChartAttribute attribl new ChartAttribute Co
306. index As Integer Dim startindex As Integer index pTransforml SetScaleStartY CDbl startindex pTransforml SetScaleStopY CDbl startindex xAxis CalcAutoAxis yAxis CalcAutoAxis xAxisLab CalcAutoAxisLabels yAxisLab CalcAutoAxisLabels Me UpdateDraw End Sub UpdateYScaleAndAxes Private Sub HScrollBar2 Scroll ByVal sender As System Object ByVal e As System Windows Forms ScrollEventArgs If Not Me IsDesignMode Then UpdateXScaleAndAxes HScrollBarl Value End If End Sub Private Sub VScrollBar2 Scroll ByVal sender As System Object _ ByVal e As System Windows Forms ScrollEventArgs If Not Me IsDesignMode Then UpdateYScaleAndAxes VScrollBarl Value End If End Sub There are many other examples of Form components interacting with charts The ContourPlots ContourLinePlot example program uses a CheckBox object to specify which contours are to be displayed The FormControlExamples Candlestick WithTable example continuously updates a DataGrid the base class for the MyDataGrid class table with open high low close data and simultaneously updates a chart with the same data The scrolling action of the DataGrid is synchronized with the chart In the FormControlExamples OHLCChart example a Scrollbar controls the time axis of a stock market OHLC chart The MultipleAxes MultiAxesChart example uses Button objects to select the x axis range 484 FAQs 19 I am trying to plot 100 000 000 data points and it
307. ing routines for resizing of the array and the insertion and deletion of bool based data elements This is a utility class for returning data that results from nearest point calculations The axis classes use this class to to organize the location of the individual tick marks of an axis This is a utility class that defines complex 3D shapes as a list of simple 3 sided polygons The contour plotting routines use it Derived from Rectangle3D and is included for compatibility with programs written for QCChart2D This is a utility class that specifies the x y and z value along with the width height and depth for a 3D rectangle Class Architecture 57 Differences between the QCChart2D and QCChart3D API Rather than invent a new API API refers to the names methods and properties in the software we chose to use the API from the existing QCChart2D adding new methods and creating new classes only when necessary Because of this programs written using QCChart2D are easily converted to QCChart3D There are still few changes you must consistently make in your programs and these are summarized below 1 The QCChart3D routines are in their own unique DLL QCChart3DNet DLL and have their own unique namespace com quinncurtis chart3dnet This means that you should delete the QCChart2DNet DLL from your program References node under the VS Solution Explorer and add in its place the QCChart3DNet DLL Solution Explorer Bargraphs Solution E
308. initially set to the ChartObj DECIMALFORMAT format with a decimal precision of 1 Change this by creating a NumericLabel or TimeLabel object that specifies how you want the number formatted Set the x and y value templates independently using the DataToolTip SetX ValueTemplate and DataToolTip SetY Value template methods The tooltip will display just the y value of the selected object Change this to display the x value or both the x and y values using the DataToolTip SetDataToolTipFormat method specifying one of the data tooltip format constants DATA TOOLTIP CUSTOM DATA TOOLTIP X DATA TOOLTIP Y DATA TOOLTIP XY ONELINE DATA TOOLTIP TWOLINE DATA TOOLTIP GROUP MULTILINE DATA TOOLTIP OHLC The tooltip popup window uses a default Sans Serif font with a size of 12 The text 1s justified above and to the right of the mouse cursor The default background color of the data tooltip is a pale yellow RGB 255 255 204 Change this by replacing the ChartText object used as the template for the tooltip popup window Use the DataToolTip SetTextTemplate method to replace the default template with your own The selected data point is highlighted using a ChartSymbol object set to a default shape of ChartObj SQUARE a size of 8 and a color of black Change this by replacing the ChartSymbol used as the template with one of your own Simple data tooltip example Extracted from the MultpleAxes MultiAxesChart example In this example the tooltip will disp
309. intValue true chartVu AddChartObject thePlot2 Visual Basic Stacked Bar Graph DEFINE SECOND GRAPH AS A STACKED BAR GRAPH Create coordinate system for second graph Dim pTransform2 As New TimeCoordinates User same dataset as Group bar plot set stacked mode flag Dataset1 SetStackMode ChartObj AUTOAXES STACKED pTransform2 AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR 304 Group Plot Objects force x axis time scale to a specific range pTransform2 SetTimeScaleStart New ChartCalendar 1997 ChartObj JANUARY 1 pTransform2 SetTimeScaleStop New ChartCalendar 2003 ChartObj JANUARY 1 force starting position of y scale to 0 pTransform2 SetScaleStartY 0 define position of chart in graph area pTransform2 SetGraphBorderDiagonal 0 1 0 55 0 9 0 88 Set chart rotation protate New Point3D 10 20 0 pTransform2 AbsRotateCoordinateSystem protate chartVu SetFractionalZViewportDepth 0 1 create a stacked bar plot Dim thePlot2 As New StackedBarPlot pTransform2 Datasetl ChartCalendar GetCalendarWidthValue ChartObj YEAR 0 75 0 0 attribArray ChartObj JUSTIFY CENTER Dim bardatavalue As NumericLabel thePlot2 GetPlotLabelTemplate Define internal data point labeling of the bars bardatavalue SetTextFont theFont bardatavalue SetNumericFormat ChartObj CURRENCYFORMAT bardatavalue SetDecimalPos 1 bardatavalue SetColor Color Black thePlot2 SetPlotLabelTem
310. ion 0 0 int xAxisLabelsDir ChartObj AXIS MIN int xAxisLabelsDecimal 1 int xAxisLabelsEnds ChartObj LABEL ALL Color xAxisLabelsColor Color Black int xAxisNumericFormat ChartObj DECIMALFORMAT xAxisLabels SetAxisLabels labelfont xAxisLabelsRotation xAxisLabelsDir xAxisLabelsDecimal xAxisLabelsEnds xAxisLabelsColor xAxisLabels SetAxisLabelsFormat xAxisNumericFormat Visual Basic Dim labelfont As Font New Font Helvetica 10 FontStyle Bold Dim xAxisLabelsRotation As Double 0 0 Dim xAxisLabelsDir As Integer ChartObj AXIS MIN 200 Axis Labels Dim xAxisLabelsDecimal As Integer 1 Dim xAxisLabelsEnds As Integer ChartObj LABEL ALL Dim xAxisLabelsColor As Color Color Black Dim xAxisNumericFormat As Integer ChartObj DECIMALFORMAT xAxisLabels SetAxisLabels labelfont xAxisLabelsRotation _ xAxisLabelsDir xAxisLabelsDecimal _ xAxisLabelsEnds xAxisLabelsColor xAxisLabels SetAxisLabelsFormat xAxisNumericFormat Time and Date Axis Labels Class TimeAxisLabels GraphObj ChartText AxisLabels TimeAxisLabels The TimeAxisLabels class extends the AxisLabels class adding extensive time and date formatting capability Use it to label axes created using the TimeAxis class Label formats A time axis label can take many forms Variations on these forms include Time formats hh mm ss hh mm mm ss etc e Date formats mm dd yy dd mm yy mm yy etc Ther
311. is a subclass of the SimplePlot class and and displays simple datasets in line plot format Data points are connected using a straight line or a step line When used with a 24 D dataset the position of the line with respect to the z axis is set using the attached datasets ImplicitZValue property Since a 2 5 D simple line plot has 220 Simple Plot Objects no depth the attached datasets ImplicitDepthValue property is ignored When a simple line plot is attached to a 3D dataset the line is not restricted to a z axis plane and can traverse 3D space unrestricted In that case both the ImplicitZ Value and ImplicitDepthValue are ignored ndino yom egeinsea N 10 15 Lawyers 1000 employees A SimpleLinePlot attached to a SimpleDataset3D SimpleLinePlots LinePlot3D SimpleLinePlot contructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As SimpleDataset ByVal attrib As ChartAttribute C public SimpleLinePlot PhysicalCoordinates transform SimpleDataset dataset ChartAttribute attrib transform dataset attrib The coordinate system for the new SimpleLinePlot object The line plot represents the values in this dataset Specifies the attributes line color thickness and style fill color and fill mode for the line plot Simple Plot Objects 221 A ChartAttribute object sets the objects global line color line thickness line style fill
312. is class is the abstract base class for the other axis classes It contains data and drawing routines common to all axis classes Linear Axes 100 0 00004 50 0 00002 0 0 00000 sog 201 0 02 0 03 0 04 005 g 99002 0 00004 2000 0 2000 4x10 100 04 02 00 02 04 te Ta 3 aaa Macau dae H 0 10000 20000 30000 40000 10 80 80 2800 15 29 3 40 40 E2400 25 0 0 2000 0 20 40 60 80 100 5 10 15 The positioning of axes is very flexible Axes can have an inverted scale 24 Class Architecture LinearAxis This class implements a linear axis with major and minor tick marks placed at equally spaced intervals Logarithmic Axes 1000 50000 100 400 5000 Linear X Log X Log X 10 Log Y 200 Linear Y 500 Log Y 1 0 50 0 1 0 LL 3 0 20 40 60 80 100 0 02 02 2 20 200 1 10 100 1000 40 LogX 20 Linear Y 0 02 0 4 06 1 2 4 6 10 20 40 60 100 gg 400600 1000 100 Time X 10 Log Y 1 8 01 02 9 01 02 10 01 02 Logarithmic axes can be combined with linear logarithmic and time axes LogAxis This class implements a logarithmic axis with major tick marks placed on logarithmic intervals for example 1 10 100 or 30 300 3000 The minor tick marks are placed within the major tick marks using linear intervals for example 2 3 4 5 6 7 8 9 20 30 40 50 90 An important feature of the LogAxis class is that the major and minor tick marks do not have to fall on decade boundaries A logarithmic axis must have a positive range exclusive of 0
313. ized coordinates This method initializes the insets of the plot area volume inside the graph area volume specified using graph normalized values Visual Basic Public Sub SetGraphBorderInsets _ ByVal ByVal ByVal ByVal rLeft As Double _ rTop As Double _ rRight As Double rBottom As Double Public Sub SetGraphBorderInsets _ ByVal ByVal ByVal ByVal ByVal ByVal C rLeft As Double _ rTop As Double _ rFront As Double _ rRight As Double rBottom As Double rRear As Double public vo double double double double id SetGraphBorderInsets rLeft Zog EE rBottom public vo double ouble ouble ouble ouble ouble Q Q Q TS Q rLeft rTop rTop rRight rBottom rRear id SetGraphBorderInsets rLeft ETOP rFront rRight rBottom rRear Scaling and Coordinate Systems 113 The left inset of the plot area volume inside the graph area volume specified using graph normalized coordinates The top inset of the plot area volume inside the graph area volume specified using graph normalized coordinates The front inset of the plot area volume inside the graph area volume specified using graph normalized coordinates The right inset of the plot area volume inside the graph area volume specified using graph normalized coordinates The bottom inset of the plot area volume inside the graph area volume
314. ject type of Visual Basic Projects Give the project a unique name our version of this example is WindowsControlLibrary1 You will end with the shell of a UserControl class with the name UserControll You will modify UserControll and turn it into an object derived from our ChartView object e Right click on Reference in the Solution Explorer window and select Add Reference Browse to the Quinn Curtis DotNet lib subdirectory and select the QCChart3DNet DLL e View the UserControll vb code Change the base class of UserControll to com quinncurtis chart3dnet ChartView The VB form code should now look like Public Class UserControll Inherits com quinncurtis chart3dnet ChartView Region Windows Form Designer generated code Public Sub New MyBase New 454 Using QCChart3D for Net to Create Web Applications This call is required by the Windows Form Designer InitializeComponent Add any initialization after the InitializeComponent call End Sub UserControll overrides dispose to clean up the component list Protected Overloads Overrides Sub Dispose ByVal disposing As Boolean If disposing Then If Not components Is Nothing Then components Dispose End If End If MyBase Dispose disposing End Sub Required by the Windows Form Designer Private components As System ComponentModel IContainer NOTE The following procedure is required by the Windows Form Designer It can be modified using the Windows Form D
315. k of a spreadsheet file that looks like 70 Chart Datasets x values x 0 x 1 x 2 x 3 x 4 x 5 y values y 0 yl sl yBl yA yi5 z values z 0 z 1 z 2 DEI z 4 z 5 number of xyz data points numberDatapoints numberColumns 6 This would be the ROW_MAJOR format if the data were stored in a CSV file It has two main constructors This constructor creates a dataset using the x y values stored in arrays SimpleDataset3D constructors Visual Basic Overloads Public Sub New ByVal sname As String _ ByVal x As Double _ ByVal y As Double _ ByVal z As Double _ Overloads Public Sub New _ ByVal sname As String _ ByVal x As Double ByVal y As Double amp f Te pem ByVal z As Deckert ByVal depthvalue As Double C public SimpleDataset3D string sname double x double y double z public SimpleDataset3D string sname double x double y double z double depthvalue sname Specifies the name of the dataset x An array that specifies the x values of a dataset Chart Datasets 71 y An array that specifies the y values of a dataset The length of the y array must match the length of the x array 2 An array that specifies the z values of a dataset The length of the z array must match the length of the x array depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of data points is the value of x L
316. kedLinePlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal attribs As ChartAttribute C public StackedLinePlot PhysicalCoordinates transform GroupDataset dataset ChartAttribute attribs transform The coordinate system for the new StackedLinePlot object dataset The stacked line plot represents the values in this group dataset attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset specify the attributes line color and line style for each group of the stacked line graph The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor 310 Group Plot Objects 2000 1500 1000 epnyjduiv 500 Time Stacked ribbon plots MultiLinePlots StackedLines Stacked line plot example extracted from the example program MultiLinePlots StackedLines C ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid attribl SetFillFlag true attribl SetLineFlag false ChartAttribute attribArray new ChartAttribute numGroups for i 0 i lt numGroups i attribArray i ChartAttribute attribl Clone attribArray 0 SetFillColor Color Blue a
317. l ByVal ByVal ByVal Ct transform As PhysicalCoordinates dataset As GroupDataset _ rbarwidth As Double _ attribs As ChartAttribute nbarjust As Integer _ public FloatingStackedBar PhysicalCoordinates transform GroupDataset dataset double rbarwidth ChartAttribute attribs ant nbarjust transform The coordinate system for the new FloatingStackedBarPlot object dataset The floating stacked bar graph represents the values in this group dataset rbarwidth The width of the stacked bars in units of the independent axis attribs An array of ChartAttribute objects sized the same as the number of groups in the dataset that specify the attributes outline color and fill color for each group of a stacked floating bar graph nbarjust The stacked bars are justified with respect to the x values in the dataset using the rbarjust justification value JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX 274 Group Plot Objects A stacked floating bar plot example from the example program Bargraphs BostonClimate C Create Temperature Chart Create a time scale TimeCoordinates pTransforml new TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE Auto scale time scale based on the the three datasets in the dataset array pTransforml AutoScale HighsAndLows ChartObj AUTOAXES NEAR ChartObj AUTOAXES FAR Set chart rotation Point3D protate new Point3D 10 20 0 pTr
318. l designed object oriented charting package allows the programmer to extend the software without modifying the source of the underlying classes Instead the programmer extends the software by deriving a new class from an existing base class The new derived class localizes custom source code and the source of the underlying classes remains unchanged In the QCChart3D classes a user can subclass an existing class and create new custom charting objects Examples of custom charting objects are specialized plots that extend the SimplePlot or GroupPlot classes to include new plot types for applications such as stock market technical analysis statistical process control and medical instrumentation to name a few e Third the library has no limits regarding the number of data points in a plot the number of plots in graph the number of axes in a graph and the number of coordinate systems in a graph A major weakness in many commercial graphics packages is that they have hard coded limits that restrict the number of data points axes or coordinate systems A simple business bar chart may only contain 3 or 4 data points depicting a sales forecast An audio mixer application may require 32 million plotted points represented by 32 traces of 1 million points each each trace representing 20 seconds of audio sampled at 50 kHz The most effective way to compare data is to overlay it in the same graph Often the data series have different dynamic ranges
319. l As New NumericLabel Simple Plot Objects 245 modellabel SetXJust ChartObj JUSTIFY CENTER modellabel SetYJust ChartObj JUSTIFY MIN Dim modellabelfont As New Font Microsoft Sans Serif 10 FontStyle Regular modellabel SetTextFont modellabelfont modellabel SetTextNudge 0 5 thePlotl SetPlotLabelTemplate modellabel 11 Group Plot Objects GroupPlot ArrowPlot BubblePlot CandlestickPlot CellPlot ErrorBarPlot FloatingBarPlot FloatingStackedBar GroupBarPlotChartPlot HistogramPlot LineGapPlot MultiLinePlot OHLCPlot OHLCBarPlot StackedBarPlot StackedLinePlot The GroupPlot class is an abstract class representing plot types that use data organized as arrays of x and y values where there is one or more y value for each x value Group plot types include multi line plots stacked line plots stacked bar plots group bar plots error bar plots floating bar plots open high low close plots candlestick plots arrow plots histogram plots cell plots and bubble plots The number of x values in a group plot is referred to as the number of columns or as numberDatapoints and the number of y values for each x value is referred to as the number of rows or numberGroups Think of spreadsheet that looks like x values x 0 x 1 x 2 x 3 x 4 x 5 y values group 0 y 0 0 y 0 1 y 02 y 03 y 0 4 v 0 5 y values group 1 y 1 0 y 1 1 y L2 y L3 vlt Al y l 5 y values group 2 y 2 0 y 2 1 y 2 2 y 2 3 y 2 4 y
320. lay the decimal y value of the nearest data point when the left mouse button is pressed 352 Data Tooltips Click on one of the buttons below to change the x axis range 700 1500 14 0K i 100 642 7 1 600 13 0K 1000 500 12 0K 500 400 11 0K 0 300 10 0K 200 500 9 0K 100 Event Partition Simple data tooltips MultpleAxes MultiAxesChart C ChartView chartVu DataToolTip datatooltip new DataToolTip chartVu chartVu SetCurrentMouseListener datatooltip Visual Basic Dim chartVu As ChartView Dim datatooltip As DataToolTip New DataToolTip chartVu chartVu SetCurrentMouseListener datatooltip Medium complex data tooltip example Adapted from the SimpleLinePlots LineFill example In this example the tooltip will display the x value ofthe data point as a date and the y value as currency The x and y values are displayed on two separate lines one above the other C Font toolTipFont new Font SansSerif 10 FontStyle Regular Data Tooltips 353 DataToolTip datatooltip new DataToolTip chartVu TimeLabel xValueTemplate new TimeLabel ChartObj TIMEDATEFORMAT MDY NumericLabel yValueTemplate new NumericLabel ChartObj CURRENCYFORMAT 0 datatooltip GetToolTipSymbol SetColor Color Green datatooltip SetXValueTemplate xValueTemplate datatooltip SetYValueTemplate yValueTemplate datatooltip SetDataToolTipFormat ChartObj DATA_TOOLTIP_XY_TWOLINE datatool
321. le _ ByVal rTop As Double ByVal rFront As Double ET ByVal width As Double _ ByVal height As Double ByVal depth As Double Overloads Public Sub SetGraphBorderFrame _ ByVal rLeft As Double _ ByVal rTop As Double _ ByVal width As Double _ ByVal height As Double _ C4 public void SetGraphBorderFrame double rLeft double rTop double rFront double width double height double depth public void SetGraphBorderFrame double rLeft double rTop double width double height where rLeft rTop rFront width height depth Scaling and Coordinate Systems 111 The left x position of the plot area volume inside the graph area volume specified using graph normalized coordinates The top y position of the plot area volume inside the graph area volume specified using graph normalized coordinates The front z position of the plot area volume inside the graph area volume specified using graph normalized coordinates The width of the plot area volume inside the graph area volume specified using graph normalized coordinates The height of the plot area volume inside the graph area volume specified using graph normalized coordinates The depth of the plot area volume inside the graph area volume specified using graph normalized coordinates This method initializes the size and position of the plot area volume inside the graph area volume specified using graph n
322. le of the chart remains unchanged Important zoom features include e Automatic recalculation of axis properties for tick mark spacing and axis labels e Zooming of time coordinates with smooth transitions between major scale changes years gt months gt weeks gt days gt hours gt minutes gt seconds e Zooming of time coordinates that use a 5 day week and a non 24 hour day e Simultaneous zooming of an unlimited number of x and y coordinate systems and axes Super zooming e The user can recover previous zoom levels using a zoom stack e User defineable zoom limits prevent numeric under and overflows Simple Zooming of a single physical coordinate system Class ChartZoom GraphObj ChartZoom The ChartZoom class implements Net delegates for mouse events It implements and uses the mouse events OnMouseMove OnMouseDown and OnMouseUp The default operation of the ChartZoom class starts the zoom operation on the OnMouseDown event it draws the zoom rectangle using the XOR drawing mode during the OnMouseMove event and terminates the zoom operation on the OnMouseUp event 338 Zooming During the OnMouseUp event the zoom rectangle is converted from device units into the chart physical coordinates and this information is stored and optionally used to rescale the chart scale and all axis objects that reference the chart scale If four axis objects reference a single chart scale for example when axes bound a chart on all for
323. lectedindex Dim volume As Double OHLCObj stockVolumeData selectedindex Dim openObj As String ChartSupport NumToString open ChartObj DECIMALFORMAT 2 Dim highObj As String ChartSupport NumToString high ChartObj DECIMALFORMAT 2 ni Dim lowObj As String ChartSupport NumToString low ChartObj DECIMALFORMAT 2 Dim closeObj As String ChartSupport NumToString close ChartObj DECIMALFORMAT 2 Dim volumeObj As String ChartSupport NumToString volume Q hartObj DECIMALFORMAT 0 Dim nasdaqObj As String ChartSupport NumToString nasdaq ChartObj DECIMALFORMAT 2 Dim timelabel As New TimeLabel transform OHLCObj xValues selectedindex ChartObj TIMEDATEFORMAT STANDARD tooltipstring timelabel GetTextString ControlChars Lf tooltipstring Open openObj ControlChars Lf tooltipstring High highObj ControlChars Lf tooltipstring Low lowObj ControlChars Lf tooltipstring Close closeObj ControlChars Lf tooltipstring Volume volumeObj ControlChars Lf tooltipstring NASDAQ nasdaqObj End If Assign as the tooltip string Me CustomToolTipString tooltipstring End Sub DefineCustomerToolTipString End Class CustomToolTip Define custom tooltip Dim stocktooltip As New CustomToolTip Me stocktooltip SetDataToolTipFormat ChartObj DATA TOOLTIP CUSTOM Stocktooltip SetEnable True chartVu SetCurrentMouseListe
324. lines to the top of the UserChartControl2 cs code to resolve the QCChart3D and other graphics classes used in the example using System Drawing Drawing using System Drawing Drawing2D using com quinncurtis chart3dnet e The step of creating and defining a User Control that inherits from com quinncurtis chart3dnet ChartView only needs to be performed once Any instance of the control that you add to any form in the project will derive from UserChartControl2 e Build the Solution Build Build Solution This will compile the UserChartControl2 class and make it accessible as a component on the Toolbox and to derive from If the project fails to compile you need to go back and check the previous steps e Youcan create as many custom chart controls as your application requires Each custom chart control will inherit from the com quinncurtis chart3dnet ChartView control Or using using using using using using using Using QCChart3D for Net to Create Windows Applications 429 Optional You can create inherited controls from the UserChartControl2 class that you already created Create an inherited control by selecting Project Add Inherited Control Give the inherited control a unique name 1 e UserChartInheritedControll When you select Open choose UserChartControl2 in the Inheritance Picker The result is new control added to the project Build the solution and the UserChartInheritedControl1 control will be added to the Toolbo
325. lor Blue 1 DashStyle Solid attribl SetFillFlag true attribl SetLineFlag false ChartAttribute attribArray new ChartAttribute numGroups for i 0 i lt numGroups i attribArray i ChartAttribute attribl Clone attribArray 0 SetFillColor Color Blue attribArray 1 SetFillColor Color Yellow attribArray 2 SetFillColor Color Magenta attribArray 3 SetFillColor Color Orange attribArray 4 SetFillColor Color Gray attribArray 5 SetFillColor Color Red attribArray 6 SetFillColor Color Green StackedLinePlot thePlotl new StackedLinePlot pTransforml Datasetl attribArray chartVu AddChartObject thePlotl Visual Basic Simulate data Dim numPoints As Integer 10 Dim numGroups As Integer 7 Dim xl numPoints 1 As Double Dim yl numGroups 1 numPoints 1 As Double Initialize data Define a group dataset for the stacked line plot Dim Datasetl As New GroupDataset First xl yl Datasetl ImplicitDepthValue 0 2 Datasetl ImplicitZValue 0 5 Datasetl SetStackMode ChartObj AUTOAXES STACKED Define coordinate system for stacked line plot Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Force starting values of coordinate system to 0 pTransforml SetScaleStartX 0 pTransforml SetScaleStartY 0 308 Group Plot Obj
326. lor Orange 0 DashStyle Solid olor Orange hartObj SIZE BUBBLE RADIUS attribl E C BubblePlot thePlotl new BubblePlot pTransforml Datasetl je thePlotl ImplicitDepthValue 0 05 t hePlot1 BubblePlotMode ChartObj SPHERE3D chartVu AddChartObject thePlot1 Create a generic legend ChartAttribute attrib2 new ChartAttribute Color Black 0 DashStyle Solid attribl S5etFillColor Color FromArgb 177 33 33 Font legendFont new Font Microsoft Sans Serif 10 FontStyle Regular ChartAttribute legendAttributes new ChartAttribute Color Black 1 DashStyle Solid Color White legendAttributes SetFillFlag true legendAttributes SetLineFlag true Create bubble plot legend BubblePlotLegend legend new BubblePlotLegend thePlotl 0 85 0 15 0 14 0 25 legendAttributes legend AddLegendItem 10 Million 10 attrib2 legendFont legend AddLegendItem 25 Million 25 attrib2 legendFont legend AddLegendItem 40 Million 40 attrib2 legendFont legend AddLegendGeneralText ChartObj LEGEND HEADER Bubble Size Color Black legendFont chartVu AddChartObject legend Visual Basic Define a bubble plot Dim attribl As New ChartAttribute Color Orange 0 DashStyle Solid Color Orange Dim thePlotl As New BubblePlot pTransforml1 Datasetl ChartObj SIZE BUBBLE RADIUS attribl thePlotl ImplicitDepthValue 0 05 thePlot1 BubblePlotMode ChartObj SPHERE3D chart
327. lot SimpleScatter Plot The SimplePlot class is an abstract class representing plot types that use data organized as a simple array of xy and or z points Simple plot types include line plots scatter plots bar plots ribbon plots and line marker plots If the SimplePlot is attached to one of the 2 D dataset types SimpleDataset and TimeSimpleDataset the plot will reside in a fixed z axis plane If the SimplePlot type is attached to one of the 3D dataset types SimpleDataset3D and TimeSimpleDataset3D it can display a plot that varies in the x y and z dimension point to point When used in the simplest mode simple plot objects use a single ChartAttribute object to control the plot objects color line and fill styles In terms of memory usage this is the most efficient method If memory is not an issue it is also possible to assign every line segment bar and scatter plot symbol a unique ChartAttribute object Used in this mode a single line plot can have unlimited number of multi colored line segments Another option labels each data point with its numeric y value Example program segments presented in this documentation are not complete programs and contain uninitialized and or undefined objects and variables Do not attempt to copy them into your own program Refer to the referenced example Simple Line Plots Class SimpleLinePlot GraphObj ChartPlot SimplePlot SimpleLinePlot The SimpleLinePlot class
328. lot thePlotl new BubblePlot pTransforml Datasetl E thePlotl ImplicitDepthValue 0 05 t hePlotl BubblePlotMode ChartObj SPHERE3D chartVu AddChartObject thePlot1 Visual Basic Create dataset Dim Datasetl As New TimeGroupDataset First xl yl By adding the yl 0 index value position to the yl 1 index radius value we should get an auto axis scale that takes into accout the bubble radius Datasetl SetStackMode ChartObj AUTOAXES STACKED Datasetl ImplicitZValue 0 5 Define coordinate sysetm for data Dim pTransforml As New TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Define a bubble plot Dim attribl As New ChartAttribute Color Orange 0 DashStyle Solid Color Orange Dim thePlotl As New BubblePlot pTransforml Datasetl Group Plot Objects 255 ChartObj SIZE BUBBLE RADIUS attribl thePlotl ImplicitDepthValue 0 05 thePlot1 BubblePlotMode ChartObj SPHERE3D chartVu AddChartObject thePlot1l Note the use of the GroupDataset method SetStackMode This forces the auto scale routine to look at the sum of y values across groups as is needed to auto scale stacked plots It is useful for bubble plots of type SIZE BUBBLE RADIUS because the y 0 value represents the y position of the bubble and the y 1 value the radius in physical coordinates Adding the two for each bubble gives the maximum y val
329. low The attributes for each group can set or modified using the SetSegment methods where the segment number parameter cooresponds to the group number These methods include SetSegmentAttributes SetSegmentFillColor SetSegmentLineColor and SetSegmentColor Group Plot Objects 303 Stacked bar plot example extracted from the example program Bargraphs GroupBargraphs C TimeCoordinates pTransform2 new TimeCoordinates User same dataset as Group bar plot set stacked mode flag Datasetl SetStackMode ChartObj AUTOAXES STACKED pTransform2 AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR pTransform2 SetTimeScaleStart new ChartCalendar 1997 ChartObj JANUARY 1 Transform2 SetTimeScaleStop new ChartCalendar 2003 ChartObj JANUARY 1 ge Transform2 SetGraphBorderDiagonal 0 55 1 95 0 75 IO pIransform2 SetScaleStarty 0 Define axes axes labels and grids StackedBarPlot thePlot2 new StackedBarPlot pTransform2 Datasetl ChartCalendar GetCalendarWidthValue ChartObj YEAR 0 75 0 0 attribArray ChartObj JUSTIFY_CENTER NumericLabel bardatavalue thePlot2 GetPlotLabelTemplate bardatavalue SetTextFont theFont bardatavalue SetNumericFormat ChartObj CURRENCYFORMAT bardatavalue SetDecimalPos 1 bardatavalue SetColor Color Black thePlot2 SetPlotLabelTemplate bardatavalue thePlot2 SetBarDatapointLabelPosition ChartObj CENTERED BAR thePlot2 SetShowDatapo
330. lsFormat _ ByVal format As Integer _ C public void SetAxisLabelsFormat int format font The font object used to display the axis label text rotation The rotation in degrees of label text in the normal viewing plane labdir The justification of the axis label AXIS MIN or AXIS MAX with respect to the tick mark endpoint decimal Sets the number of digits to the right of the decimal point for numeric axis labels labelends Specifies whether there should be labels for the axis minimum LABEL MIN maximum LABEL MAX or tick mark starting point LABEL ORIGIN The value of these constants can be OR d together The value of LABEL MIN LABEL MAX LABEL ORIGIN is LABEL ALL 198 Axis Labels labcolor The color of the label text format Sets the numeric format for the axis labels Use one of the numeric format constants DECIMALFORMAT SCIENTIFICFORMAT EXPONENTFORMAT BUSINESSFORMAT ENGINEERINGFORMAT PERCENTFORMAT CURRENCEYFORMAT CURRENCYBUSINESSFORMAT Simple numeric axis labels example C Define the coordinate system double xMin 5 double xMax 15 I o double yMin double yMax 105 CartesianCoordinates simpleScale new CartesianCoordinates xMin yMin xMax yMax Create the x and y axes LinearAxis xAxis new LinearAxis simpleScale ChartObj X AXIS LinearAxis yAxis new LinearAxis simpleScale ChartObj Y AXIS NumericAxisLabels xAxisLabels new NumericAxisLabels
331. luel3 depthvalue Dim datasetsArray 2 As TimeSimpleDataset datasetsArray 0 datasetl datasetsArray 1 dataset2 datasetsArray 2 dataset3 Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale AutoScale datasetsArray There is a version ofthe multiple dataset auto scale routine that also specifies rounding mode parameters simpleTimeScale AutoScale datasetsArray ChartObj AUTOAXES_FAR Chartob AUTOAXES FAR The previous examples use the TimeCoordinates default 7 days week and 24 hours day modes Many of the methods in the software have a weektype parameter The default value of this parameter is the constant ChartObj WEEK 7D If you want the coordinate system to ignore Saturdays and Sundays use the constant ChartObj WEEK 5D constant Use the methods below to establish a 5 days week coordinate system TimeCoordinates constructor Visual Basic Overloads Public Sub New ByVal dstart As ChartCalendar ByVal yl As Double _ ByVal dstop As ChartCalendar ByVal y2 As Double _ ByVal nweektype As Integer _ Overloads Public Sub New ByVal dstart As ChartCalendar ByVal yl As Double _ ByVal zi As Double _ ByVal dstop As ChartCalendar ByVal y2 As Double _ ByVal z2 As Double C public TimeCoordinates ChartCalendar dstart double yl ChartCalendar dstop double y2 int nweektype public TimeCoordinates ChartCalendar d
332. lution Explorer window and select Add Reference Browse to the Quinn Curtis DotNet lib subdirectory and select the QCChart3DNet DLL Also add System Windows Forms dll from the Net list box Add a method that makes the chart and returns a ChartView object of the chart In the example below this is the function GetInitializeChart It has String arguments that contain the x and y data values and integers that specify the desired height and width for the chart Using QCChart3D for Net to Create Web Applications Public Class WebForml Inherits System Web UI Page Private System EventArgs Sub Page Load ByVal sender As System Object ByVal e As Handles MyBase Load Get Input from HTML ASP page request Dim Dim Dim Dim Dim Dim Dim imagewidth widthstring As String Request Params Get 0 heightstring As String Request Params Get 1 XDataString As String Request Params Get 2 YDataString As String Request Params Get 3 imagewidth As Integer Integer Parse widthstring imageheight As Integer Integer Parse heightstring chartVu As ChartView imageheight GetInitializeChart XDataString YDataString Stream chart back as a JPeg image Dim ImageFormat ChartImage As BufferedImage Jpeg New BufferedImage chartVu get your binary image data here Response ContentType image jpeg ChartImage Savelmage Response OutputStream End Sub Private YDataString As String As Chart
333. m Drawing Drawing2D graphics library This allows the high speed high resolution using the Net printer drivers A tradeoff is the software does not use a raster z buffer the most efficient technique for implementing hidden line and surface removal The hidden surface removable capability is limited to a simple painter s algorithm where whole objects are sorted by their z axis positioning value and drawn in the right order That technique is not as universal as the hidden surface removal found in OpenGL and Direct3D and cannot handle intersecting solids The chapter also summarizes the classes in the QCChart3D for Net library There are five primary features of the overall architecture of the QCChart3D for Net classes These features address major shortcomings in existing charting software for use with both Net and other computer languages 12 Class Architecture e First QCChart3D uses the standard Net window architecture Charts are placed in a ChartView window that derives from the System Windows Forms UserControl class Position one or more ChartView objects in Net container windows using the standard container layout managers Mix charts with other components in the same container Charts use the standard Net event processing model for handling mouse and keyboard events e Second the library is extensible Hundreds of different vertical markets use computer charting The charts used in each market have a unique look and feel A wel
334. m window See the FixedSizeScrollable tab of the ResizeExamples program for an example There are many more variations Just remember that the ChartView class is a UserControl derived class and it can be used anywhere a UserControl object can be used utilizing standard or specialized Net layout managers Finding Chart Objects The ChartView class is the central container class of the chart library It keeps track of all of the objects in the chart It includes a routine that can compare a test point against all of the objects in the chart and return an instance of an object that intersects the test point The search can be restricted to a class and all subclasses of the specified class FindObj method Visual Basic Overloads Public Function FindObj _ ByVal testpoint As Point3D _ ByVal classname As String _ As GraphObj Ct public GraphObj FindObj Point3D testpoint string classname 156 The Chart View E Parameters If the graph has multiple overlapping objects of the same type you can return the n object intersecting the test point Visual Basic Overloads Public Function FindObj _ ByVal testpoint As Point3D _ ByVal classname As String _ ByVal nthhit As Integer _ As GraphObj C4 public GraphObj FindObj Point3D testpoint string classname int nthhit testpoint The current position of the mouse in Net device coordinates classname The class name of the base class that is used to
335. mark coincides with a minor tick mark For example if the TIMEAXIS MONTHDAY setting is used the major tick mark for a month falls at the first day of the month coinciding with the minor tick mark for that day If the TIMEAXIS WEEKDAY setting is used the major tick mark for a WEEK falls at the first day of the week coinciding with the minor tick mark for that day Situations where the major and minor tick marks do not coincide involve weeks as minor tick marks If the TIMEAXIS MONTHWEEK setting is used the first day of the month may or may not correspond to the first day of the week Sunday or Monday Major tick marks fall on the first day of each month and minor tick marks fall on the first day of each week Combine these irregularities with a 5 or 7 day workweek option and the non 24 hour day option and you can see that a generalized algorithm to define the positions of tick marks is a difficult task For example you are a stock trader and you want to track the price volume characteristics of a stock from the last 5 minutes of the regular trading day to the first 5 minutes of the next regular trading day specifically from 3 55 PM Friday Sept 29 2000 to 9 35 AM Monday Oct 2 2000 The time range under consideration is only 10 minutes since the market closes Friday at 4 00 PM and opens Monday at 9 30 PM The resulting axis should reflect this 10 minute range even though the actual time elapsed is 3 930 minutes You should be able to specif
336. maximum value of which corresponds to the y values of the dataset are justified with respect to the x values Cylinders and cones can be displayed instead of bars When combined with 2 D data the z value of the bars is fixed using the associated datasets ImplicitZValue property When used with 3D data the z value of each bar is set using the datasets associated z data value for that point The depth of the bars is set using the datasets ImplicitDepthValue property 44 Class Architecture ESiFormi 5 xi BubbleChart SimpleScatter ScatterPeints CellPlotChart ArrowChart LabeledDatapoints BushGuardRecords RealGDPGrowth ScatterPIot30 History Test Results e109S IsOL 0 5 10 15 20 Student Individual data points can be automatically labeled Labeled data points ScatterPlots LabeledDatapoints SimpleLineMarkerPlot This class is a subclass of the SimplePlot class and it displays simple datasets in a line plot format where scatter plot symbols highlight individual data points Each data point is represented using a 2D or 3D scatter plot symbols The class will work with 2 2 D data using a constant z value set using the associated datasets ImplicitZValue property or 3D data where each data point is represented using individual x y and z datapoints Class Architecture 45 m Expenses za ET 400 5 a a 200 0 1998 1999 2000 2001 2002 2003 2004 2005 2006 Ribbon plots can be
337. mple Pipeline Plots 1 ade rtu een een 228 Class simpleE Ettel 228 Simple Bar Blo einen dae Sie lesa Maga ud ne 231 Class BS E APP OU aero nennen eu 231 Simple Scatter PIOUS nn an rasen Nena 236 Table of Contents Class Smplescatleploe une DENE Ra tust 236 Simple bine Marker Plols a5 ga eet Moe n eedem deque oot den E aided 241 Class SimpleLineMarkerPlot 2 33 ids aeternae eto epis RR 241 LT Cuoup PIot ODIGCIS c ee a ei eo adt d adu e 247 ANTEOW Plots liessen 248 C Idsscxtro WP OE anne 248 Bubble PIODSCU oe p UU n rode cutem pope uec tU eden opa tup T ct pom emet 252 GlaissB ubblePlOE uc cete b de scs erated e 252 Candlestick PlIofS sed d oe cett oe tet co i hte 255 It eh e EE 255 EI TTE 259 Class PISTEN ee ee 259 Error Bar Plots nee 263 Class error Bat Ot ha ea an ea 263 Floating Bar Ps sn einen 264 Class EloatingBarPlot auo ec ik Rei 264 Class Floatino Stacked Bar lot aaa a in 212 Gro p Bar Plone iet lois bas advises tu his NDS tape fca adii 275 Class GroupBatPlot ee ote are Belkin 275 PATS COSTA Pole a a atus Ar e ELA c an 280 Class Histogrambllot scd ases Risk 280 Line Gap PIOUS ie sitet ehe isst hear bus ib ea dea dug 285 Class LineGapP gf un tus Een 285 Mu lti Litie Plots nass era oen e tu ende au ae ges cete 289 Class Kg 289 lass MultiRibbonP lots cette iie patito ils sa Peto etel olea bar esi Etsi attesa 293 Open Hich Low Close Plots a ea 295 Class OPIEGPIGE Fans 295 Class OHBEB Plateau ea else 298 Sta
338. mpleTimeScale AutoScale dataset Visual Basic Dim dataset As TimeSimpleDataset New TimeSimpleDataset Sales xData yData Dim simpleTimeScale As TimeCoordinates New TimeCoordinates simpleTimeScale SetWeekType ChartObj WEEK 5D simpleTimeScale AutoScale dataset In addition to the week type the other major way to customize a TimeCoordinates coordinate system is not to use a 24 hour day There are methods that set the starting and ending time of day For example if you are interested in plotting stock market data trading during the regular trading day of 9 30 AM to 4 00 PM you can setup the coordinate system to only include these hours and to treat any data outside of these hours as invalid and not to be plotted A day can have only one continuous range You are not able to define a day to with a valid range of 9 30 AM to 4 00 PM and 6 00 PM to 9 00 PM Only one of these ranges is valid or a combined range of 9 30 AM to 9 00 PM where the 4 00 PM to 6 00 PM time segment is included in the range TimeCoordinates constructor with time of day parameters Visual Basic Overloads Public Sub New ByVal dstart As ChartCalendar ByVal starttime As Long _ ByVal yl As Double _ ByVal zi As Double _ ByVal dstop As ChartCalendar Scaling and Coordinate Systems 137 ByVal stoptime As Long ByVal y2 As Double ByVal z2 As Double _ ByVal nweektype As Integer Overloads Public Sub New _ ByVal dstart
339. n with a program development environment for resale to other developers If you utilize the SOFTWARE in an application program or in a web site deployment should we ask you must supply Quinn Curtis Inc with the name of the application program and or the URL where the SOFTWARE is installed and being used il 3 RESTRICTIONS You may not reverse engineer de compile or disassemble the SOFTWARE except and only to the extent that such activity is expressly permitted by applicable law notwithstanding this limitation You may not rent lease or lend the SOFTWARE You may not use the SOFTWARE to perform any illegal purpose 4 SUPPORT SERVICES Quinn Curtis Inc may provide you with support services related to the SOFTWARE Use of Support Services is governed by the Quinn Curtis Inc polices and programs described in the user manual in online documentation and or other Quinn Curtis Inc provided materials as they may be modified from time to time Any supplemental SOFTWARE code provided to you as part of the Support Services shall be considered part of the SOFTWARE and subject to the terms and conditions of this EULA With respect to technical information you provide to Quinn Curtis Inc as part of the Support Services Quinn Curtis Inc may use such information for its business purposes including for product support and development Quinn Curtis Inc will not utilize such technical information in a form that personally identifies you
340. nd the rotation of the text if it is different from the normal horizontal orientation It is common to rotate x axis labels 90 degrees so that they are vertical rather than horizontal in order to squeeze more tick mark labels in along the x axis Axis Labels Positioning The AxisLabels class manages the placement of the axis labels with respect to the underlying axis tick marks Labels can be place above or below the tick marks of a horizontal x axis and to the left or right of the tick marks for a vertical y axis The axis label justification constants AXIS MIN and AXIS MAX are used for this purpose The AXIS MIN constant places the text label on the side of the tick mark that is in the direction of the perpendicular axis coordinate system minimum The AXIS MAX is Axis Labels 195 much the same except that it places the label on the side that is in the direction of the perpendicular axis coordinate system maximum Axis labels should not actually touch the tick marks so x and y offsets are factored in The programmer can modify these offsets Numeric Axis Labels Class NumericAxisLabels GraphObj ChartText AxisLabels NumericAxisLabels The NumericAxisLabels class extends the AxisLabels class adding extensive numeric formatting capability It labels axes created using the LinearAxis and LogAxis classes Label formats An axis label can take many forms Variations on these forms include Full decimal conversion
341. ndardized coordinate conversion routines The drawback of this technique is what I will call the odd pixel problem The odd pixel problem shows up when you try map physical normalized and user coordinate systems based on floating point numbers onto a pixel coordinate system using an integer coordinate system Unless the corners of the plot area volume fall on exact pixel boundaries converting from plot area volume coordinates to graph area volume coordinates once translated to pixels can be up to one pixel off The alternative technique used in this software library is to use a single coordinate system The physical coordinate system defined for the plot area volume is extended in all size directions left right top bottom out of screen into screen It is extended so that the physical coordinates of the six corners of the plot area volume remain unchanged The six corners of the graph area volume are assigned calculated physical coordinate values so that when it is overlaid on to the plot area volume there is an exact 1 1 correspondence for all points inside the plot area volume Once this calculation is made there is no need to use the physical coordinate system assigned to the plot area volume Instead the physical coordinate system of the graph area volume is used instead Chart axes objects and plotted data always align because they are plotted using the exact same physical coordinate system The only difference is that plotted dat
342. nearAxis New LinearAxis pTransforml ChartObj X AXIS chartVu AddChartObject xAxis xAxis SetColor Color Red chartVu UpdateDraw You can change the values of a dataset or even change the complete dataset of a chart plot object Changing the values of the dataset will not show in the current graph until the ChartView repaints Call the ChartView UpdateDraw method to force a repaint See the example programs DynPieChart and ScrollingMixedPlot The auto scale methods are not automatically invoked if you change the values of dataset If you want the graph to rescale taking into account the new data values you must call the appropriate autoscale methods of the coordinate system and of the related axes objects The chart classes that are NOT subclasses of GraphObj do not have a physical representation in a graph so do not try to add them to the ChartView draw list This includes the coordinate conversion classes the dataset classes and all of the utility classes The GraphObj and ChartView classes use these utility classes for coordinate conversions data storage math calculations and I O Delete a specific chart object from the ChartView draw list using the ChartView DeleteChartObject method Clear the entire draw list using the ChartView ResetChartObjectList method You can leave an object in the ChartView draw list but disable its display by calling that objects GraphObj SetChartObjEnable method If you disable an object you will still
343. neering and financial applications often require the use of logarithmic axe Logarithmic axes are useful for the display of data that either has a wide dynamic range and or data that is exponential in nature Two common examples that use logarithmic scales are hi fi speaker charts db vs log frequency and stock market charts Class LogAxis GraphObj Axis LogAxis The LogAxis class is a concrete subclass of the Axis class Use the LogAxis class to create a logarithmic axis with logarithmic spacing between the major tick marks 1 10 100 and linear spacing 2 3 4 5 between the minor tick marks Logarithmic Axis Minimum and Maximum The minimum and maximum values for a logarithmic axis can have any positive value as long as the maximum is greater than the minimum Create an inverted axis by first defining an inverted physical coordinate system using one of the PhysicalCoordinates derived classes The axis minimum and maximum do not have to fall on decade intervals i e 0 1 to 10 000 and can assume any positive range i e 0 23 to 13 100 is valid Logarithmic Minor and Major Tick Mark Intervals 176 Axes The major tick marks for a logarithmic axis use an exponential interval The exponential interval in physical coordinates transforms to a linear interval in the working coordinate system Below are examples of the major tick mark locations for a logarithmic axis Axis Minimum and Maximum Axis Major Tick Mark Loc
344. ner stocktooltip 17 Pie Charts PieChart Everyone is familiar with the ubiquitous pie chart Pie charts are 1 dimensional not because they are shallow but because they represent a simple 1 dimensional series of numbers 3 5 2 7 3 rather than the parametric set of data points 3 2 6 3 7 3 used in the other plot types described in this software The best use of pie charts involves data that has 10 or fewer elements Otherwise the text used to label the pie charts starts to overlap in adjacent small pie wedges The x values of a dataset represent the datavalues for each pie wedge The y values of the dataset explode a pie wedge from its normal centered position The position of the pie chart with respect to the z axis is set using the attached datasets ImplicitZ Value property The datasets ImplicitDepthValue property specifies the 3D depth of pie chart Using the Pie Chart Class Class PieChart GraphObj ChartPlot SimplePlot PieChart The PieChart class extends the ChartPlot class and displays pie charts The x values of the simple dataset used for data storage specify the pie wedge values The y values of the dataset specify the explode percentage for each pie wedge PieChartConstructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As SimpleDataset ByVal spiestringls As String _ ByVal attribs As ChartAttribute ByVal labeli
345. new Arrow 1 40 6 15 ChartAttribute arrowAttrib new ChartAttribute Color Black 1 DashStyle Solid Color Black 3 arrowAttrib SetFillFlag true ChartShape arrowShape new ChartShape pTransforml regionArrow GetArrowShape ChartObj DEV POS 1 5 40 0 2depth ChartObj PHYS POS 195 arrowShape SetChartObjAttributes arrowAttrib chartVu AddChartObject arrowShape Visual Basic Create an arrow shapped object and position it in 3D space Dim regionArrow As New Arrow 1 40 6 15 Dim arrowAttrib As New ChartAttribute Color Black 1 DashStyle Solid Color Black arrowAttrib SetFillFlag True 410 Lines Shapes Images and Arrows Dim arrowShape As New ChartShape pTransforml regionArrow GetArrowShape ChartObj DEV_POS 1 5 40 0 zdepth ChartObj PHYS POS 195 arrowShape SetChartObjAttributes arrowAttrib chartVu AddChartObject arrowShape 22 File and Printer Rendering Classes ChartPrint BufferedImage High quality B amp W and color printing is an important feature of the charting library The resulting graph renders on the printer using the resolution of the output device for both text and graphical elements of the chart and does not transfer a grainy image from the computer to the printer The QCChart3D for Net software uses the Microsoft Net PrintDocument component to implement printing The BufferedImage class converts a chart into a Net Bitmap object or saves the chart to a file in an
346. ng _ ByVal x As Double ByVal y As Double T MM ByVal z As Double _ Overloads Public Sub New _ ByVal sname As String _ ByVal x As Double ByVal y As Double ByVal z As Double ByVal depthvalue As Double Ct public GroupDataset string sname double x double y double z 92 Chart Datasets public GroupDataset string sname double x double y double z double depthvalue sname Specifies the name of the dataset x An array that specifies the x values of a group dataset The length of the x array sets the number of columns for the group dataset y An array that specifies the y values of a group dataset where y has the dimensions number of rows number of columns The number of rows in the y array sets the number of groups in the group dataset The number of columns in the y array must match the length of the x array z An array that specifies the z values of a group dataset The length of the z array sets the number of columns for the group dataset depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of columns in the group dataset is the value of x Length property The number of columns in the y array must match the length of the x array and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped
347. nimum coordinate value is greater than 0 0 but less than the value of MIN LOG VALUE the minimum coordinate value is set to MIN LOG VALUE Positioning the Plot Area Volume in Graph Area Volume The WorkingCoordinates class has a group of methods SetGraphBorderFrame SetGraphBorderDiagonal and SetGraphBorderlInsets that position the plot area volume of the chart in the graph viewport Since the coordinate system scaling classes are subclasses of WorkingCoordinates these methods are part of those classes These methods are redundant and only one need be called The default position of the plot area 110 Scaling and Coordinate Systems volume in the graph view port is at x 0 2 y 0 2 z 0 2 width 0 6 height 0 6 depth 0 6 specified using graph normalized coordinates This method initializes the position and size of the plot area volume inside the graph area volume specified using a rectangle to specify graph normalized coordinates SetGraphBorder method Visual Basic Overloads Public Sub SetGraphBorderFrame _ ByVal border As Rectangle3D _ C public void SetGraphBorderFrame Rectangle3D border border Specifies the rectangle defining the plot area volume border This method initializes the position and size of the plot area volume inside the graph area volume specified using graph normalized position and size values Visual Basic Overloads Public Sub SetGraphBorderFrame _ ByVal rLeft As Doub
348. nitFloatingBarPlot Datasetl 0 75 attribl ChartObj JUSTIFY CENTER thePlotl SetBarOrient ChartObj HORIZ DIR chartVu AddChartObject thePlotl Class FloatingStackedBarPlot GraphObj ChartPlot GroupPlot FloatingStackedBarPlot The FloatingStackedBarPlot class extends the GroupPlot class and displays stacked floating bar plots In a stacked floating bar plot each group is stacked on top of one another each group bar a cumulative sum of the related group items before it The bars are free floating because each bar does not reference a fixed base value as do stacked bars All bars in a given FloatingStackedBarPlot object have the same width When used with a 27 D dataset the position of the each bar with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the bar When a stacked floating bar plot is attached to a 3D dataset each bar is not restricted to a z axis plane and can traverse 3D space unrestricted The individual elements of the bar plot are normally 3D bars but you can also set the bar plots BarShapeOption property to a cylinder CYLINDER3D y yu sye4 Dat Group Plot Objects 273 11 23 03 11 30 03 ll Record High Low ll Normal High Low W Todays High Low Floating stacked bar plot Bargraphs BostonClimate FloatingBarPlot constructor Visual Basic Overloads Public Sub New ByVal ByVa
349. nother window The user coordinate system for the window starts at 0 0 in the upper left corner and extends in the positive direction down and to the right This software maps a 3D physical coordinate system on the Net 2D device coordinate system The 3D transformation pipeline looks something like this 3D Physical Coordinates gt 3D User Device Coordinates gt 2D Screen Coordinates The position and size of all 3D chart objects are defined using one of the 3D physical coordinate systems CartesianCoordinates or TimeCoordinates A chart object is broken into component lines and polygons the 3D coordinates of which are transformed through scaling operations into 3D user coordinates User coordinates are based on the device coordinate dimensions of the window the chart is displayed in The 3D user coordinates are then processed using standard 3D transformation techniques 4x4 homogeneous matrix conversions rotating and translating the coordinates into a flat 2D projection of the 3D image The resulting screen coordinates match the Net device coordinates of the underlying Net window Plot area volume and the graph area volume The plot area volume of a graph is the 3D volume where the plot data objects line plots bar plots etc are drawn The graph area volume is the entire volume of the chart window The graph area volume includes the plot area volume as a subset Usually the plot area volume is smaller than the graph area volume and r
350. noutl As Integer _ ByVal pielabeiformat As Integer _ 362 Pie Charts C public PieChart PhysicalCoordinates transform SimpleDataset dataset string spiestringls ChartAttribute attribs int labelinoutl int pielabelformat transform The pie chart is placed in the coordinate system defined by transform dataset The pie chart represents the values in this dataset The x values of the simple dataset used for data storage specify the pie wedge values The y values of the dataset specify the explode percentage for each pie wedge spiestrings An array of strings size dataset G ttNumberDatapoints used as labels for the pie slices attribs An array of ChartAttribute objects size dataset GetNumberDatapoints that specify the attributes outline color and fill color for each wedge of a pie chart labelinout An array of integer size dataset G tNumberDatapoints specifying if a specific pie slice text label is drawn inside the pie slice or outside of the pie slice Use one of the constants PIELABEL OUTSLICE or PIELABEL INSLICE pielabelformat All pie slice labels share the same format Use one of the pie slice label format constants PIELABEL NONE Do not display and pie slice text PIELABEL STRING Display only the pie text strings no numeric values PIELABEL NUMVALUE Display the pie numeric value only no pie text strings PIELABEL STRINGNUMVAL Display the pie text string and
351. nse file from the software There was no way to check the license file from a control embedded in an HTML page without generating exceptions that would invalidate the control We aren t sure what browsers support this other than Microsoft Internet Explorer In order to guarantee the necessary security clearance to run in the browser you must install our QCChart3DNet DLL library in the GAC of the client computer more on that later Included with the software is the complete source to the three web applications we have running on our web site at http quinn curtis com Chart3 DAspWebApp htm http quinn curtis com Chart3DWebA pplicationl htm http quinn curtis com Chart3 DHTMLAspApp htm The source is found in our DotNet QCChart3D Visual CSharp Examples Asp Net and our DotNet QCChart3D Visual Basic Examples Asp Net folders Do Not Try and Compile our ASP Net Applications Unlike the Windows applications created using Visual Studio Net we have found it extremely difficult to move ASP Net applications to a different Visual Studio Net environment Visual Studio splits the files that it creates between the computer hosting 432 Using QCChart3D for Net to Create Web Applications Visual Studio and the server The projects include all sorts of references to the server where the application is expected to run Obviously our server is not your server If you are an expert at moving ASP Net projects give it a try Your best bet is to develop
352. nstructor creates a time dataset using the x and y values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the time values and the second column the y values If you use the ROW MAJOR format the first row represents the time values and the second row the y values Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation Visual Basic Overloads Public Sub New ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer _ C4 public TimeSimpleDataset CSV csv string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before starting this read operation A DateTimeFormatlInfo object and a date time format string in the CSV class control the interpretation of the ChartCalendar values The format in the file must match the format specified for the CSV class The underlying conversion mechanism calls the DateTime ToString String formatstring DateTimeFormatInfo info method for the conversion The default format for the date time formatstring object is M dd yy Call Chart Datasets 75 the SetDateTimeFomatSt
353. nt from being displayed in a chart If the bad data value is part of a line plot a gap will appear in the line plot at that point Bad data points are not deleted from a dataset 7 How do you update a chart in real time In general real time updates involve adding new objects to a chart or modifying existing objects that are already in the chart Once the object is added or changed call the ChartView UpdateDraw method to force the chart to update using the new values Objects can be added or modified based on some external event or in response to a timer event created using System Timers Timer Make all changes for a given event and call the ChartView UpdateDraw method once The position of most GraphObj derived objects is set or modified using one of the objects SetLocation methods New data points can be added to an existing dataset using one of the datasets AddDataPoint AddTimeDataPoint AddGroupDataPoints or AddTimeGroupDataPoints methods ChartPlot derived objects that use datasets will update to reflect the new values when the ChartView UpdateDraw method is called If the coordinates of the new data points are outside of the x and y limits of the current coordinate system it may be necessary to rescale the coordinate system so that the new points show up otherwise the new data points will be clipped The new scale values can be set explicitly or calculated using one of the auto scale methods The example programs DynamicCharts Instrume
354. ntSimulation DynamicCharts DataLogger DynamicCharts DynamicPieChart and DynamicCharts MixedPlot all demonstrate various ways to update charts in real time If you want to change points in an existing dataset but not the size of the dataset call the datasets appropriate SetXDataValue SetYDataValue or SetDataPoint methods The dataset has its own copy of the data so you must change these values not the original values you used to initialize the dataset If you plan to change every 472 FAQs value in the dataset you can do that point by point or create a new dataset and swap that in for the old dataset using the plot objects SetDataset or SetGroupDataset method Call the ChartView UpdateDraw method to force the chart to update using the new values 8 How do I prevent flicker when updating my charts on real time Flicker is the result of erasing and redrawing all or part of a chart in the current display buffer Double buffering of screen images can minimize any flicker The ChartView class does the actual work of rendering a chart image to the underlying UserControl display buffer The UserControl class uses double buffering for the display of all screen images When a chart is updated it is automatically rendered to an off screen bitmap When drawing is complete the off screen bitmap is copied to the screen display buffer minimizing the effect of flicker 9 How do you implement drill down or data tool tips in a chart See Chapter 16
355. ntrol2 in the Inheritance Picker The result is new control added to the project Build the solution and the UserChartInheritedControll control will be added to the Toolbox in addition to the UserChartControD e Look at the UserChartControl2 class The chart is created in the InitializeChart method Until this method is called the UserChartControl2 appears as an empty shell You can call this method from somewhere outside of the class to avoid problems associated debugging errors in user controls at design time Using QCChart3D for Net to Create Windows Applications 427 Go to the main form Form1 Go to the toolbox and select the UserChartControl2 from the Windows Forms list Drop it onto the main form and size it Double click on the UserChartControl2 in the main Form1 form This will add a UserChartControl21_Load method to the Form class The chart initialization code will be invoked by this event Private Sub UserChartControl21 Load ByVal sender _ As System Object ByVal e As System EventArgs Handles _ UserChartControl21 Load UserChartControl21 InitializeChart End Sub Define the chart by customizing the UserChartControl2 InitializeChart method Our example has copied the initialization code from the SimpleScatter class in the ScatterPlots example You should be able to compile the project without error No chart will be visible yet The Form1 Load will only be called at runtime You should now be able to comp
356. number of groups must be four The Y 0 values of the group dataset represent the values for Open the Y 1 values for High the Y 2 values for Low and the Y 3 values for Close When used with a 2 5 D dataset the position of the each OHLC grouping with respect to the z axis is set using the Group Plot Objects 299 attached datasets ImplicitZValue property The datasets ImplicitDepthValue is sets the bar depth When a OHLC plot is attached to a 3D dataset each OHLC group is not restricted to a z axis plane and can traverse 3D space unrestricted 12 11 06 12 18 06 12 25 06 1 01 07 1 08 07 Ooen High Low Close OHLC bar plot FinancialExamples OHLCChart OHLCBarPlot constructor Visual Basic Overloads Public Sub New ByVal ByVal ByVal ByVal ByVal ByVal c transform As PhysicalCoordinates dataset As GroupDataset _ rflagwidth As Double _ attrib As ChartAttribute openhighattrib As ChartAttribute closehighattrib As ChartAttribute public OHLCBarPlot PhysicalCoordinates transform GroupDataset dataset double rflagwidth ChartAttribute attrib ChartAttribute openhighattrib ChartAttribute closehighattrib transform The coordinate system for the new OHLCPlot object dataset The OHLCPlot plot will represent the group open high low close values in this group dataset The number of groups must be four The Y 0 values of the group dataset represent the values for Open the
357. objects since the position of the tooltip symbol in the chart will not take into account the stacked object summation DataToolTip constructors The constructors below create a DataToolTip object Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ Overloads Public Sub New _ ByVal component As ChartView _ ByVal buttonmask As MouseButtons _ C public DataToolTip ChartView component he public DataToolTip ChartView component MouseButtons buttonmask component A reference to the ChartView object that the chart is placed in buttonmask Specifies the mouse button that is trapped to invoke a move Create the DataToolTip object and then install it using the ChartView SetCurrentMouseListener method This adds the DataToolTip object as a MouseListener to the ChartView object Enable Disable the function using DataToolTip SetEnable method Call ChartView SetCurrentMouseListener null to remove the object as a mouse listener for the chart view Data Tooltips 351 Set the threshold distance for deciding if the nearest data point found is a hit using the DataToolTip SetHitTestThreshold method The default values for the DataToolTip class assume the following The left mouse button pressed event is the trigger for the tooltip Change this using the DataToolTip SetButtonMask method The numeric format for the x and y values are controlled by separate NumericLabel class templates that are both
358. of cells double maxx pTransforml GetScaleStopX 20 Add in max height of cells double maxy pTransforml GetScaleStopY 10 pTransforml SetScaleStopX maxx pTransforml SetScaleStopY maxy Re auto scale to produce rounded axis values pTransforml AutoScale ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 15 90 0 8 Set rotational parameters Point3D protate new Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 2 Define a cell plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid attribl SetFillColor Color Blue attribl SetFillFlag true CellPlot thePlotl new CellPlot pTransforml Datasetl attribl thePlotl ImplicitDepthValue 0 3 for i20 i lt numPoints i thePlotl SetSegmentColor i Color FromArgb int x1 i 3nt yl 0 2 2 0 int yl l1 1 y1 2 1 N chartVu AddChartObject thePlotl1 Visual Basic Create dataset Dim Datasetl As New GroupDataset First xl yl Datasetl ImplicitDepthValue 0 3 Datasetl SetAutoScaleNumberGroups 1 Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE 262 Group Plot Objects ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add in max width of cells Dim maxx As Doubl
359. of some of the coordinate systems include the device coordinates of the current window normalized coordinates for the current window and plotting area and scaled physical coordinates of the plotting area 18 Class Architecture Transform3D UserCoordinates WorldCoordinates WorkingCoordinates PhysicalCoordinates CartesianCoordinates TimeCoordinates Attribute Class ChartAttribute This class maintains a 4x4 homogeneous 3D transformation matrix that rotates scales and translates coordinates from 3D device coordinates into 2D screen coordinates This class manages the interface to the System Drawing classes and contains routines for drawing lines rectangles and text using Net device coordinates It also contains an instance of a Transform3D object that transforms from 3D device coordinates to 2D screen coordinates This class derives from the UserCoordinates class and maps a device independent world coordinate system on top of the Net device coordinate system This class derives from the WorldCoordinates class and extends the physical coordinate system of the plot area volume the area typically bounded by the charts axes to include the complete graph area volume the area of the chart outside of the plot area volume This class is an abstract base class derived from WorkingCoordinates and defines the routines needed to map the physical coordinate system of a plot area volume into a working coordinate system Di
360. of the x axis Y_AXIS SetAxisIntercept sets the x intercept of the y axis SetAxisIntercept2 sets the z intercept of the y axis Z_AXIS SetAxisIntercept sets the x intercept of the z axis SetAxisIntercept2 sets the y intercept of the z axis Visual Basic Public Sub SetAxisIntercept _ ByVal intercept As Double _ Public Sub SetAxisIntercept2 ByVal intercept As Double _ C public void SetAxisIntercept double intercept public void SetAxisIntercept2 double intercept SetAxisTicks method Visual Basic Overloads Public Sub SetAxisTicks _ ByVal tickorigin As Double _ ByVal nlogtickformat As Integer _ Visual Basic Overloads Public Sub SetAxisTicks _ ByVal origin As Double _ ByVal nlogtickformat As Integer ByVal minorticklength As Double _ ByVal majorticklength As Double _ ByVal tickdir As Integer _ C public void SetAxisTicks double tickorigin int nlogtickformat public void SetAxisTicks double origin int nlogtickformat double minorticklength double majorticklength int tickdir Axes 179 intercept Sets the intercept of this axis with the perpendicular axis in physical coordinates nlogtickformat This parameter specifies which minor tick marks are flagged for labels Logarithmic axis minor tick mark labels can become very crowded It is possible to choose values that may overlap or not display Valid nlogtickformat
361. one degree increments This class labels the major tick marks of the LinearAxis and LogAxis classes The class supports many predefined and user definable formats including numeric exponent percentage business and currency formats This class labels the major tick marks of the LinearAxis and LogAxis classes using user defined strings This class labels the major tick marks of the associated TimeAxis object The class supports many time 23 59 59 and date 5 17 2001 formats It is also possible to define custom date time formats 28 Class Architecture ChartPlot ContourPlot GroupPlot PieChart SimplePlot Plot objects are objects that display data organized in a ChartDataset class There are five main categories simple group contour and pie plots Simple plots graph data organized as a simple set of x y and z values The z values can be a fixed constant as in the case of 27 D plots or can vary from point to points as in the case of true 3D plots The most common examples of simple plots are line plots bar graphs and scatter plots Group plots graph data organized as multiple y values for each x value Most group plots do not require an independent set of z values so in most group plots the z value is always set to a constant The most common examples of group plots are stacked and group bar graphs open high low close plots and candlestick plots The contour plot type displays the iso lines or contours of a 3D surface u
362. onstructor to fill the background with a user defined gradient Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal bgtype As Integer _ ByVal gradient As LinearGradientBrush C public Background PhysicalCoordinates transform int bgtype LinearGradientBrush gradient Use this constructor to fill the background with a user defined texture Visual Basic Overloads Public Sub New Background Colors Textures and Gradients 161 ByVal transform As PhysicalCoordinates ByVal bgtype As Integer _ ByVal texture As TextureBrush _ C public Background PhysicalCoordinates transform int bgtype TextureBrush texture transform The coordinate system associated with the chart background The transform defines where the plot area volume fits in the graph area volume bgtype The chart background type Use one of the chart background type constants PLOT BACKGROUND or GRAPH BACKGROUND Specifying the PLOT BACKGROUND type fills the plot area volume of the chart while specifying the GRAPH BACKGROUND type fills the entire graph area volume of the chart gradient The user defined background gradient texture The users defined background texture startcolor Specifies the starting color value of the gradient stopcolor Specifies the ending color value of the gradient dir Specifies the direction of the gradient Bitmaps as Background Objects If y
363. oordinates abstract class is responsible for mapping the plot area volume coordinate system whether it is linear logarithmic and date time continuous or discontinuous into a continuous linear coordinate system It uses the WorkingCoordinates class to map this plot area volume coordinate system to the entire viewport The PhysicalCoordinates system uses independent scale objects derived from ChartScale to manage coordinate conversions for the x y and z dimensions This way 108 Scaling and Coordinate Systems the x coordinate can use one coordinate conversion object LinearScale LogScale TimeScale and the y coordinate another There are two concrete implementations of the PhysicalCoordinates class CartesianCoordinates and TimeCoordinates Use the CartesianCoordinates class for any combination of linear and logarithmic scaling for the x and y coordinate Use the TimeCoordinates class when you want a time scale for the x coordinate and a linear or logarithmic scale for the y coordinate Normalized coordinates Normalized coordinates are a special case of linear physical coordinates where the linear physical scale 0 0 1 0 0 0 1 0 0 0 1 0 is applied to either the graph area volume or the plot area volume of the chart Graph normalized coordinates maps the upper left corner of the graph window to the xyz coordinates 0 0 0 0 0 0 and the lower right corner of the graph area volume to the xyz coordinate 1 0 1 0 0 0 Plot no
364. or a line marker plot SimpleLinePlots Simple line plots with linear and time date coordinate systems Also filled and step lines 6 Introduction UserChartExample1 Simple example displays line and scatter plots WebsiteStats The example displays summary web site information in four separate windows WindowsControlLibrary1 The example embeds a ChartView derived chart in a web page for viewing with Internet Explorer ZoomExamples Zooming simple linear axes super zooming of multiple axes zooming of time data based data ASP Net Holds ASP Net examples specific directory Chart3DAspWebApp ASP Net Web application Chart3DHTMLAspApp ASP Net App in HTML page Chart3DWebApplicationl Tutorial example program for ASP Net web application Visual Basic VB specific code Examples VB examples Bargraphs Horizontal vertical stacked group histogram floating CalendarData Line plots bar plots and log plots that use time date data Also reading time date data from a file ChartAxes Linear logarithmic time date custom hours and time date Also axes labels ContourPlots Line and filled contour plots CustomDataToolTips Creating custom data tooltips for an OHLC plot multiple stacked graphs and a pie chart DataCursorsAndMarkers Using data cursors and markers DynamicCharts Scrolling lines bars scatter plots data logging instrument simulation chart animation EditChar
365. or and any gradients you apply is independent of any rotations that you apply to the coordinate system and will not be shaded Background background new Background pTransforml ChartObj GRAPH BACKGROUND Color BlanchedAlmond Color White ChartObj Y AXIS EE SimpleScatter BubbleChart ScatterPoints CellPlotChart ArrowChatt LabeledD atapoints BushGuardRecords RealGDPGrowth ScatterPlot3D A chart area background with y axis gradient The plot area background mode always uses a simple solid color By default three planes of the plot area 3D volume are displayed These planes are the back plane XY_MAXZ PLANE the left plane YZ_MINX_PLANE and the bottom plane XY MINY PLANE You can turn on off the individual planes using the PlotAreaWallFlags property The plot area background planes are dependent on the current coordinate system 3D rotations and will be shaded accordingly Background plotbackground new Background pTransforml ChartObj PLOT BACKGROUND Color LightGray plotbackground PlotAreaWallFlags ChartObj XY MAXZ PLANE true plotbackground PlotAreaWallFlags ChartObj YZ MINX PLANE true plotbackground PlotAreaWallFlags ChartObj XZ MINY PLANE true Background Colors Textures and Gradients 159 01 xl SimpleScatter BubbleChart ScalterPoinls CellPlotChart ArtowChart LabeledDatapoints BushGuardRecords RealGDPGrowth ScatterPlot30 A plot area background LightGray in color
366. orderDiagonal 0 1 15 90 0 6 pTransform2 New TimeCoordinates pTransform2 SetGraphBorderDiagonal 0 1 7 90 0 875 Multiple Coordinate Systems in the Same Chart Often a chart needs more than one coordinate system to in order to support multiple x and y axes each with different scales As in the preceding section this involves creating multiple coordinate systems The plot area volumes for the coordinate systems can occupy separate space in the chart view or they can overlap at the exact same position As in the previous section the position of each coordinate systems plot area volume in the chart view is set using one of the coordinate systems SetGraphBorder methods Many of the examples use this technique including FinancialExamples OHLCChart MultipleAxes MultipleAxes ChartAxes LinearAxes ChartAxes LogAxes and ChartAxes DateAxes1 and ChartAxes DateAxes2 The Chart View 153 Multiple coordinate systems in a ChartView example C double xMinl 5 double xMaxl 15 double yMinl 0 double yMax1 105 CartesianCoordinates pTransforml new CartesianCoordinates xMinl yMinl xMaxl yMaxl pTransforml SetGraphBorderDiagonal 0 1 15 90 0 6 double xMin2 50 double xMax2 150 double yMin2 0 double yMax2 1050 CartesianCoordinates pTransform2 new CartesianCoordinates xMin2 yMin2 xMax2 yMax2 pTransform2 SetGraphBorderDiagonal 0 1 15 90 0 6 Visual Basic Dim xMinl A
367. orm The PhysicalCoordinates object associated with the data cursor zpos The initial z position of the data cursor in the xy plane nmarkdertype The marker type Use one of the Marker marker type constants MARKER VLINE MARKER BOX rsize The size in Net device coordinates ofthe MARKER BOX and MARKER CROSS style cursors See the Marker constructor description for more information about the Marker type constants Create the DataCursor object and then install it using the ChartView SetCurrentMouseListener method This adds the DataCursor object as a MouseListener to the ChartView object Enable Disable the function using DataCursor SetEnable method Call DataCursor SetCurrentMouseListener null to remove the object as a mouse listener for the chart view 326 Data Markers and Data Cursors Since the DataCursor class implements mouse event delegates it has methods implementing the mouse events OnMouseMove OnDoubleClick OnClick OnMouseDown and OnMouseUp The default usage of the DataCursor class creates the data marker when the mouse is pressed As long as the mouse is pressed the data cursor tracks the mouse position Release the mouse button and the marker disappears When using data markers it is often desirable to do additional things during the mouse events In this case you derive a new class from DataCursor override the mouse events that you want to intercept and add your own code to these events Make sure you call the parents
368. ormalized values for the opposite corners of the region visual Basic Overloads Public Sub SetGraphBorderDiagonal _ ByVal rLeft As Double _ ByVal rTop As Double ByVal rFront As Double _ ByVal rRight As Double ByVal rBottom As Double ByVal rRear As Double Public Sub SetGraphBorderDiagonal _ ByVal rLeft As Double _ ByVal rTop As Double _ ByVal rRight As Double ByVal rBottom As Double C public void SetGraphBorderDiagonal 112 Scaling and Coordinate Systems oubl oubl oubl oubl Q 0 Q Q Q jolo public void SetGraphBorderDiagonal double double double double double double rLeft rTop rFront rRight rBottom rRear The left x position of the plot area volume inside the graph area volume specified using graph normalized coordinates The top y position of the plot area volume inside the graph area volume specified using graph normalized coordinates The front z position of the plot area volume inside the graph area volume specified using graph normalized coordinates The right x position of the plot area volume inside the graph area volume specified using graph normalized coordinates The bottom y position of the plot area volume inside the graph area volume specified using graph normalized coordinates The back z position of the plot area volume inside the graph area volume specified using graph normal
369. orml SetGraphBorderDiagonal 0 1 0 15 0 9 0 55 Set rotational parameters Dim protate As New Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate 298 Group Plot Objects Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define attributes for OHLC plot Dim attribl As New ChartAttribute Color Red 1 DashStyle Solid Color Red Dim openHighAttrib As New ChartAttribute Color Red 1 DashStyle Solid _ Color LimeGreen Dim closeHighAttrib As New ChartAttribute Color Red 1 _ DashStyle Solid Color Yellow attribl SetFillFlag True Define OHLC plot OHLCPlot thePlotl new OHLCPlot pTransforml Datasetl _ ChartCalendar GetCalendarWidthValue ChartObj DAY_OF_YEAR 0 75 _ attribl thePlotl SetFastClipMode ChartObj FASTCLIP X chartVu AddChartObject thePlot1 Note how the ChartCalendar GetCalendarWidthValue method calculates the width of the bars as a function of time in this case a width of 0 75 days Class OHLCBarPlot GraphObj ChartPlot GroupPlot OHLCBarPlot The OHLCBarPlot class extends the GroupPlot class and displays stock market data in an multi colored bar format that is easier to view in 3D than the traditional OHLC plot The endpoints of each bar represent the High and Low values while the internal colored bar represents the Open and Close values Different colors are used if the open is higher than the close or the close is higher than the open The
370. ot is fixed using the associated datasets ImplicitZValue property The depth of the ribbons are set using the associated datasets ImplicitDepthValue property Class Architecture 39 20 10 1 06 03 1 13 03 1 20 03 1 27 03 2 03 03 2 10 03 2 17 03 2 24 03 3 03 03 Open High Low Close OHLC plot FinancialExamples OHLCChart OHLCPlot This class displays stock market data in an open high low close format common in financial technical analysis In the OHLCPlot class every item of the plot is a vertical line representing High and Low values with two small horizontal flags one left and one right extending from the vertical High Low line and representing the Open and Close values The OHLCPlot class can plot the bars as a 2 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently 1 06 03 1 13 03 1 20 03 1 27 03 2 03 03 2 10 03 2 17 03 2 24 03 3 03 03 Ooen High Low Close OHLC bar plot FinancialExamples OHLC Chart 40 Class Architecture OHLCBarPlot This class displays stock market data in an open high low close format common in financial technical analysis In the OHLCBarPlot class 3D bars with differentiating colors are used to display the open high low close values The OHLCBarPlot class can plot the bars as a 27 D chart where the z value of the plot is fixed using the asso
371. ot objects and another grid object to be drawn top of the charts line plot objects There are two ordering methods used to render chart objects The first method renders the objects in order as added to the ChartView object Objects added to the view last are drawn on top of objects added first The second method renders the objects according to their z order Objects with the lowest z order values are rendered first Objects with equal z order values are rendered in the ordered they are added to the ChartView object The second method z order rendering is the default method of object rendering used by the ChartView class This default behavior can be changed by call the ChartView SetZOrderSortEnable false method You can change the default z order value on an object by object basis Call the GraphObj SetZOrder method to change the z order for any given object See the section in the manual titled Rendering Order of GraphObj Objects for information about the default z values for all chart objects The example below sets the z order value of grid to something less than the default value 50 of ChartPlot objects and the z order value of grid2 to something greater than the default value C ChartView chartVu new ChartView Grid gridl new Grid xAxis yAxis ChartObj Y AXIS ChartObj GRID MAJOR gridl SetZOrder 40 This is actually the default value for the grid z order chartVu AddChartObject gridl Grid grid2 new Gr
372. ou can write 2 Introduction application programs using Java that are very platform independent This is because Java interpreters have been written for most modern operating systems The disadvantage of Java is that it creates application programs much slower than C C C and VB Microsoft was once a Java supporter and a member of the Java language consortium Microsoft wanted to create their own version of Java optimized for Windows that would not run on other platforms Sun disapproved of any company creating flavors of Java that relied on platform specific features and disbanded the consortium rather than let Microsoft or any other company proceed down that path At that point Microsoft decided to compete directly with Java using the Net languages Microsoft is loath to aid the marketing of a competitor and steadfastly refuses to distribute Sun s version of the Java virtual machine with the Windows XP operating system In order to run Java applications on a Windows platform you need to download the Java virtual machine from Sun and install it on your computer While this is easy to do it does not represent the far wider distribution of the Java virtual machine that Sun is looking for and the company has had Microsoft in court seeking some remedy for many years Microsoft Net includes a very rich API for writing applications that make use of GUI s data structures databases files and streams networking and web services The graph
373. ou want to use some sort of image as a background for the chart use the ChartImage class and size it to fill the entire view This is explained in Chapter 21 Adding Lines Shapes Images and Arrows to a Chart Add a Simple Borders to Your Chart The Background class also draw an optional border rectangle surrounding the ChartView at the very outside edge of its bounding region Enable the border using the Background EnableBorder property The property Background BorderAttributes sets set the line color and thickness of the border VB Define background Dim background As New Background pTransforml _ 162 Background Colors Textures and Gradients ChartObj GRAPH BACKGROUND Color White background EnableBorder True background BorderAttributes New ChartAttribute Color Gray 5 DashStyle Solid chartVu AddChartObject background C Define background Background background new Background pTransforml ChartObj GRAPH BACKGROUND Color White background EnableBorder true background BorderAttributes new ChartAttribute Color Gray 5 DashStyle Solid chartVu AddChartObject background Every example program configures at least one Background object The example below defines a simple linear gradient for the graph background area extracted from the example program SimpleLinePlots LineFill C Create a coordinate system scaled for the data pTransforml new TimeCoordinates pTransforml Auto
374. ouble 2000 Dim logYScale As CartesianCoordinates _ New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE logYScale SetCoordinateBounds xMin yMin xMax yMax Dim logXScale As CartesianCoordinates _ New CartesianCoordinates ChartObj LOG SCALE ChartObj LINEAR SCALE logXScale SetCoordinateBounds xMin yMin xMax yMax Dim logXLogYScale As CartesianCoordinates _ New CartesianCoordinates ChartObj LOG SCALE ChartObj LOG SCALE logXLogYScale SetCoordinateBounds xMin yMin xMax yMax Note When you explicitly scale the minimum and maximum values for a scale set to logarithmic coordinates make sure you use valid values i e non negative values greater than 0 0 The auto scale routines work for both linear and logarithmic scales If you use the auto scale methods it is important that you call the auto scale methods after you establish if a scale is linear or logarithmic This is because the auto scale routines will allow zero and negative values for the minimum and maximum of a linear scale but not a logarithmic scale If you call the auto scale routines first while the scales are set to the default linear scale mode and change one or both of the scales to logarithmic mode you can introduce invalid negative and zero values into the logarithmic coordinate system Example of auto scaling a CartesianCoordinates object that has a logarithmic y scale using a single dataset C Scaling and Coordinate Sys
375. over in the constructor that uses a SurfaceFunction argument npoints Specifies the number of xyz data point triplets in the grid array x An array size npoints of double that specifies the x values of the dataset The length of the y and z arrays must equal x Length y An array size npoints of double that specifies the y values of the dataset Z An array size npoints of double that specifies the z values of the dataset xl yl x2 y2 The SurfaceFunction sf is evaluated for the range x1 y1 to x2 y2 sf The dataset data points are created by evaluating the SurfaceFunction across the range x1 y1 to x2 vi csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before reading the first value from the row Example of creating a contour dataset from an array of Point3D C int nrows 11 ncols 11 int i j count 0 double x y z double startx 6 0 starty 6 0 double stepx 12 0 nrows 1 stepy 12 0 ncols 1 Point3D pointarray pointarray new Point3D nrows ncols x startx y Starty for i 0 i nrows i Chart Datasets 85 x startx for j 0 j lt ncols j pointarray count new Point3D z 2000 950 Math Sin Math Sqrt x x y y pointarray count SetLocation x y z x stepx count y stepy This m
376. p As ChartCalendar Cf public TimeAxis TimeCoordinates transform public TimeAxis TimeCoordinates transform public TimeAxis TimeCoordinates transform int ntickmarkbase ChartCalendar dstart ChartCalendar dstop I transform dstart dstop ntickmarkbase The time coordinate system the axis is placed in If the starting and ending dates of the axis are not explicitly set the axis uses the starting and ending dates of the transform time scale The starting date value for the axis The ending date value for the axis This field defines the major and minor tick mark spacing for a time axis Use one of the Date time axis tick mark mode constants TIMEAXIS YEARMONTH TIMEAXIS DAYHOUR for example 188 Axes Other axis properties axis intercept tick mark lengths tick mark direction are automatically calculated using an auto axis method These properties can be explicitly set if you need to override the automatically calculated values SetAxisIntercept and SetAxisIntercept2 methods The SetAxisIntercept and SetAxisIntercept2 methods set the two intercepts needed to position an axis The coordinates they apply to depends on the axis X AXIS SetAxisIntercept sets the y intercept of the x axis SetAxisIntercept2 sets the z intercept of the x axis Y AXIS SetAxisIntercept sets the x intercept of the y axis SetAxisIntercept2 sets the z intercept of the y axis Z AXIS SetAxisIntercep
377. pe As Integer _ ByVal xjust As Integer _ ByVal yjust As Integer _ ByVal rotation As Integer c public ChartText PhysicalCoordinates transform Font tfont etring tetring double x double y int npostype int xjust int yjust int rotation public ChartText PhysicalCoordinates transform Font tront string tetring double x double y int npostype 384 Text Classes public ChartText PhysicalCoordinates transform Font tfont string tetring double x double y double z int npostype int xjust int vjost int rotation transform Places the text in the coordinate system defined by transform font A reference to a Font object tstring A reference to a string object x Specifies the x value of the text position y Specifies the y value of the text position Z Specifies the z value of the text position npostype Specifies the if the position of the text is specified in physical coordinates normalized coordinates or Net device coordinates Use one of the position constants DEV_POS PHYS POS NORM GRAPH POS NORM PLOT POS xjust Specifies the horizontal justification of the text Use one of the text justification constants JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX yjust Specifies the vertical justification of the text Use one of the text justification constants JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX rotation The rotation 3
378. peration columnskip For each row of data skip this many columns before reading the first value from the row You can retrieve references to the internal arrays used to store the data using the GroupDataset methods GetXData and GetGroupData Change the values in the data arrays using these references You can also modify a point at a time using one of the SetYDataValue and SetXDataValue methods If you need to add new points to dataset increasing its size use one of the AddGroupDataPoints or InsertGroupDataPoints methods Delete data points using the DeleteDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method Example of creating a group datasets from numeric arrays C double xl 10 20 30 40 50 double yl 9 21 20 40 30 90 Chart Datasets 5 15 35 10 56h 15 25 15 30 40 double depth 0 5 double zvalue 0 5 GroupDataset Datasetll new GroupDataset First x1 yl zvalue depth Visual Basic Dim x1 As Double 10 20 30 40 50 Dim yl As Double 9 21 20 40 30 SS 15 35 10 56h EES 25 15 30 407 Dim depth As Double 0 5 Dim zvalue As Double 0 5 Dim Datasetl As GroupDataset New GroupDataset First x1 yl xvalue depth Example of creating a group datasets from a CSV file C CSV csvDataFile new CSV GroupDataset Datasetl new GroupDataset csvDataFile GroupDataset csv 0 0 Writ
379. phs and a pie chart DataCursorsAndMarkers Using data cursors and markers Introduction 5 DynamicCharts Scrolling lines bars scatter plots data logging instrument simulation chart animation EditChartExample Dialog box for chart example FinancialExamples OHLC plots candlestick plots financial log plots option chart technical analysis chart FormControlExamples Adding check boxes scrollbars and tables to charts ImageCharts Using images as chart data elements chart backgrounds and annotations LabeldDatapoints Label the data points of a simple line chart LinePlotSales Volume Simple line plot example with printing and save image menu LogPlots Logarithmic plots for financial charts and engineering charts MiscCharts A line gap chart MouseListeners Data tooltips data cursors moving data points moving chart objects MultiLinePlots Group multi line plots stacked line plots multiple single line graphs MultipleAxes Multiple axes graphs PieCharts Simple pie charts and pie charts combined with line and bar plots ResizeExamples Fixed size frame resizeable frame with fixed sized objects resizeable frame with resizeable objects scrollable panel as a view into a much larger fixed size frame ScatterPlots Simple scatter line and line marker plots scatter plots with variable size and color symbols cell plots arrow plots Also labeling the data point values
380. phy functionality Basic graphics functionality is provided by the System Drawing namespace System IO Namespace The IO namespace contains types that allow synchronous and asynchronous reading and writing on data streams and files System Collections Namespace 4 Introduction The System Collections namespace contains interfaces and classes that define various collections of objects such as lists queues bit arrays hashtables and dictionaries Directory Structure The QCChart3D for Net class library uses the following directory structure Drive Quinn Curtis Root directory DotNet Quinn Curtis Net based products directory Docs Quinn Curtis Net related documentation directory Lib Quinn Curtis Net related compiled libraries and components directory QCChart3D Language specific code directory Visual CSharp C specific directory QCChart3 DClassLib contains the source code to the QCChart3DNet dll library installed only if the source code has been purchased Examples C examples directory Bargraphs Horizontal vertical stacked group histogram floating CalendarData Line plots bar plots and log plots that use time date data Also reading time date data from a file ChartAxes Linear logarithmic time date custom hours and time date Also axes labels ContourPlots Line and filled contour plots CustomDataToolTips Creating custom data tooltips for an OHLC plot multiple stacked gra
381. pixel of horizontal resolution will look just like the 100 000 000 point dataset only display hundreds of times faster The Datset classes all include compression methods SimpleDataset CompressSimpleDataset GroupDataset CompressGroupDataset TimeSimpleDataset CompressTimeSimpleDataset and TimeGroupDataset CompressTimeGroup Dataset TimeGroupDataset CompressTimeFieldSimpleDataset TimeGroupDataset CompressTimeFieldGroupDataset that operate on the existing dataset and return a new compressed dataset The CompressTimeFieldSimpleData and CompressTimeFieldGroupDataset are particular useful because they do not use a fixed sample size of N instead they compress data so that adjacent time values are an increment of a specific time field ChartObj DAY OF YEAR ChartObj WEEK OF YEAR ChartObj MONTH ChartObj Y ear Compressing data by month and year obviously requires a varying sample size Once created connect the compressed dataset to the ChartPlot object used to display the dataset C nNumPnts 1000000 TimeSimpleDataset RawDataset new TimeSimpleDataset Raw xtimedata ydata nNumPnts FAQs 485 int compressXmode ChartObj DATACOMRESS AVERAGE int compressYmode ChartObj DATACOMRESS MINMAX int compressTimeField Calendar MONTH TimeSimpleDataset CompressedDataset RawDataset CompressTimeFileSimpleData compressXmode compressYmode compressTimeField 0 nNumPnts Compressed Visual Basic nNumPnts 1
382. plate bardatavalue thePlot2 SetBarDatapointLabelPosition ChartObj CENTERED BAR thePlot2 SetShowDatapointValue True chartVu AddChartObject thePlot2 Stacked Line Plots Class StackedLinePlot GraphObj ChartPlot GroupPlot Group Plot Objects 305 StackedLinePlot The StackedLinePlot class extends the GroupPlot class and displays data in stacked line format In a stacked line plot each group is stacked on top of one another each group line a cumulative sum of the groups before it When used with a 2 2 D dataset the position of the each bar with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property is ignored since a line plot has no depth When a stacked bar plot is attached to a 3D dataset each bar is not restricted to a z axis plane and can traverse 3D space unrestricted 2000 1500 1000 epnydwy 500 Time Stacked line plots Same as MultiLinePlots StackedLines StackedLinePlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal attribs As ChartAttribute C public StackedLinePlot PhysicalCoordinates transform GroupDataset dataset ChartAttribute attribs transform The coordinate system for the new StackedLinePlot object 306 Group Plot Objects dataset The stacked line plot represents the values
383. pleDataset dataset new SimpleDataset Sales xData yData zvalue depthvalue CartesianCoordinates simpleScale new CartesianCoordinates simpleScale AutoScale dataset Visual Basic Dim xData As Double 1 2 3 4 5 6 7 8 9 10 Dim yData As Double 10 22 33 44 55 46 33 25 14 9 Dim zvalue As Double 0 0 Dim depthvalue As Double 1 0 Dim dataset As SimpleDataset _ New SimpleDataset Sales xData yData svalue depthvalue Dim simpleScale As CartesianCoordinates New CartesianCoordinates simpleScale AutoScale dataset You can control the tightness of the auto scale values about the dataset values using other versions of the CartesianCoordinates AutoScale method that take rounding mode parameters Scaling and Coordinate Systems 121 Example of auto scaling a CartesianCoordinates object using a single dataset and explicit rounding mode parameters simpleScale AutoScale dataset ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR You can auto scale the bounds of the coordinate system using a dataset and then explicitly modify the range the auto scale selected There are methods that set the minimum and maximum values of the x and y scales This way you can use the auto scale methods for the values of one scale the y scale in the example below but explicitly set the values for the other scale the x scale in the example below Example of modifying the minimum and maximum values selected by an
384. pport GetRandomDouble CInt 255 ChartSupport GetRandomDouble CInt 255 ChartSupport GetRandomDouble attribs i New ChartAttribute color 2 DashStyle Solid color attribs i SetFillFlag True Next i attribs 0 SetColor Color Black attribs 1 SetColor Color Blue attribs 2 SetColor Color DarkGray attribs 3 SetColor Color Green attribs 4 SetColor Color Red attribs 5 SetColor Color Cyan attribs 6 SetColor Color Magenta attribs 7 SetColor Color Orange attribs 8 SetColor Color Yellow attribs 9 SetColor Color Chartreuse attribs 10 SetColor Color MediumVioletRed Contour Plotting 319 attribs 11 SetColor Color Salmon attribs 12 SetColor Color DarkkKhaki thePlotl New ContourPlot pTransforml datasetl contourlevels attribs lineflags labelflags numcontourlevels ChartObj CONTOUR LINE thePlotl SetPolygonGridOn True thePlotl SetContourLineAlgorithm ChartObj CONTOUR LINEWALK Dim contourlabel As NumericLabel thePlot1 GetPlotLabelTemplate Dim contourLabelFont As New Font Microsoft Sans Serif 8 FontStyle Regular contourlabel SetDecimalPos 0 contourlabel SetTextFont contourLabelFont contourlabel TextBgMode True contourlabel TextBgColor Color White thePlotl SetPlotLabelTemplate contourlabel chartVu AddChartObject thePlotl 13 Data Markers and Data Cursors Marker DataCursor Data markers are symbols and lines th
385. ps must be two dataset The error bar plot represents the values in this group dataset The number of groups must be two The X Y 0 values of the group dataset represent the xy position of the first error bar lines the X Y 1 values of the group dataset represent the xy position of the second error bar lines rbarwidth The width of the error bars attrib Specifies the attributes line color and line style for the error bars An individual set of error bars in an error bar plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Floating Bar Plots Class FloatingBarPlot GraphObj ChartPlot GroupPlot FloatingBarPlot The FloatingBarPlot class extends the GroupPlot class and displays floating bar plots The bars are free floating because each bar does not reference a fixed base value as do the simple bar plots stacked bar plots and group bar plots The number of groups must be two The X Y 0 values ofthe group dataset represent the starting points of each bar the X Y 1 values ofthe group dataset represent the ending points of each bar All bars in a given FloatingBarPlot object have the same width When used with a 27 D dataset the position of the each bar with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the
386. r Blue E Le E hePlotl SetSegmentFillColor 5 Color Pink chartVu AddChartObject thePlot1 Line Gap Plots Class LineGapPlot GraphObj ChartPlot GroupPlot LineGapPlot The LineGapPlot class extends the GroupPlot class and displays a line gap chart The number of groups must be two A line gap chart consists of two line plots where a contrasting color fills and highlights the area between the two lines The X Y 0 values of the group dataset represent the first of the bounding lines and the X Y 1 values of the group dataset represent the second of the bounding lines This plot type only works with a 27 D dataset The position of the line gap plot with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the line gap plot 286 Group Plot Objects IN v A Line gap plot MiscCharts LineGap LineGapPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset ByVal attrib As ChartAttribute C public LineGapPlot PhysicalCoordinates transform GroupDataset dataset ChartAttribute attrib transform The coordinate system for the new LineGapPlot object dataset The line gap plot represents the values in this group dataset The number of groups in this group dataset must be two attrib Specif
387. r Red chartVu AddChartObject yAxis Dim xAxisLabl As NumericAxisLabels New NumericAxisLabels xAxis1 xAxisLabl SetColor Color Black chartVu AddChartObject xAxisLabl Dim yAxisLabl As NumericAxisLabels New NumericAxisLabels yAxisl yAxisLabl SetColor Color Red chartVu AddChartObject yAxisLabl Dim attribl As ChartAttribute New ChartAttribute Color Red 3 DashStyle Solid Dim thePlotl As SimpleLinePlot New SimpleLinePlot pTransforml Datasetl attribl chartVu AddChartObject thePlotl Dim theTitleFont As Font New Font SansSerif 18 FontStyle Bold Dim GraphTitle As String XData XDataString Dim mainTitle As ChartTitle New ChartTitle pTransforml theTitleFont GraphTitle mainTitle AddNewLineTextString YData YDataString mainTitle SetTitleType ChartObj CHART HEADER mainTitle SetTitlePosition ChartObj CENTER GRAPH mainTitle SetColor Color Black chartVu AddChartObject mainTitle Return chartVu Using QCChart3D for Net to Create Web Applications 443 End Function End Class Modify the Page Load method that was included by default when the behind code page was created In the example below parameters that were appended to the ASP page request are retrieved using the Request Params Get method The values define the size and data values of the graph This is just one way to pass data from the HTML page to the ASP page In some of our other examples we use a key string that
388. r on ASP Net programming for examples 486 FAQs 22 Can QCChart3D for Net be used to create programs and controls that run like Java applets in web browsers Yes streaming images created using QCChart3D to a web site and embedding a QCChart3D ChartView user control in a web page is discussed in Chapter 24 Using QCChart3D for Net to Create Web Applications 23 Are you going to add additional real time routines to the QCChart3D for Net library You should probably be using our the Real Time Graphics Tools for Net which uses our QCChart2D for Net software as its base http www quinn curtis com QCRTGraphProdPage htm INDEX 3D Points 55 58 59 61 66 68 69 72 81 82 83 84 85 115 116 147 148 155 156 165 221 222 223 224 226 227 230 238 239 243 244 250 251 257 258 261 262 268 269 270 272 274 275 278 280 283 284 291 292 297 304 308 364 366 3D Text 50 61 149 194 195 200 206 330 331 351 354 355 381 382 383 384 385 386 387 389 390 391 392 395 398 472 3D Walls 21 22 61 149 157 163 164 165 166 Arrow 30 61 248 249 250 251 401 408 409 Arrow plots 29 30 61 247 248 249 250 251 255 401 408 ArrowPlot 29 30 61 247 248 249 250 251 255 401 408 Arrows 30 61 248 249 250 251 401 408 409 ASP NET 9 Auto scaling classes 19 61 115 120 121 122 123 125 130 131 132 133 134 136 139 140 142 144
389. rControll e View the UserChartControll vb underlying VB code We placed all of the chart creation code in the InitializeChart method This method is called in the UserControl constructor otherwise the UserControll appears as an empty shell Add whatever properties you need to get data from the HTML file into the chart control ChartTitleText and YMax in the example below Imports com quinncurtis chart3dnet Imports System Drawing Imports System Drawing Drawing2D Public Class UserControll Inherits com quinncurtis chart3dnet ChartView Dim mainTitle As ChartTitle Dim pTransforml As TimeCoordinates Dim yAxis As LinearAxis Region Windows Form Designer generated code Public Sub New MyBase New This call is required by the Windows Form Designer InitializeComponent Add any initialization after the InitializeComponent call InitializeChart End Sub Public Sub InitializeChart Dim chartVu As ChartView Me 456 Using QCChart3D for Net to Create Web Applications Dim theFont As Font Simulate data Dim Dim Dim Dim Dim Dim End Sub nnumpnts As Integer xl nnumpnts 1 As yl nnumpnts 1 As y2 nnumpnts 1 As y3 nnumpnts 1 As 8 ChartCalendar Double Double Double currentdate As New ChartCalendar 1998 ChartObj JANUARY 1 InitializeChart lt summary gt Set Get the chart title lt summary gt Public Property ChartTitleText As String
390. raphs Bargraphs SimpleBars CalendarData EcoWorld CalendarData FinLogPlot CalendarData SimpleBarChart ContourPlots ContourFillPlot FinancialExamples EuroDollar FinancialExamples OHLCChart FinancialExamples TechnicalAnalysis LogPlots FinLogPlot MiscCharts LineGap MultiLinePlots MultiLines1 MultiLinePlots StackedLines MultipleAxes OHLCChart ReciprocalLogPlots ReciprocalLogPlot1 ResizeExamples SimpleBarChart ScatterPlots SimpleScatter SimpleLinePlots LinePlot3D Bargraphs BostonClimate Bargraphs FloatingBars Bargraphs HistogramBars CalendarData CalendaLinePlotl CalendarData EuroDollar CalendarData OpeningScreen CalendarData TechnicalAnalysis FinancialExamples CandlestickChart FinancialExamples FinLogPlot FinancialExamples OpeningScreen FormControlExamples ScrollablePanel LogPlots SpeakerPlot MouseListeners CandlestickChart MultiLinePlots MultiLines2 MultipleAxes MultiAxesChart PolarCharts PolarLineAndScatterChart ResizeExamples MultiLine ScatterPlots ScatterPlot3D SimpleLinePlots LineFill SimpleLinePlots LinePlotSegments 474 FAQs SimpleLinePlots PipeLineAndScatterPlot SimpleLinePlots Simple3DBarPlot UserChartExamplel UserChartControl1 WebsiteStats BandwidthUsage WebsiteStats SearchEngines WebsiteStats SearchPhrases WebsiteStats ViewsAndVisits 10 I do not want to my graph to auto scale How do I setup the graph axes for a specific range Auto scaling has two parts The first is the auto scaling of the coordinate
391. rd drive and run the Setup exe program from the resulting QCChart3DInstall folder You can use your original download links to download free updates for a period of 2 years Introduction 9 Chapter Summary The remaining chapters of this book discuss the QCChart3D for Net interactive charting package designed to run on any hardware that has Net or higher interpreter available for it Chapter 2 presents the overall class architecture of the QCChart3D for Net and summarizes all of the classes found in the software Chapter 3 describes the dataset classes that hold chart data Chapter 4 describes the various classes that implement the Cartesian and time coordinate systems supported by the software Chapter 5 describes the ChartView container class that manages the chart objects Chapter 6 describes a class that will create simple one color gradient and texture backgrounds for a chart Chapters 7 8 and 9 describe the classes that create chart axes axis labels and axis grids Chapter 10 describes the classes used to display simple xy data one y value for each x value as line plots bar plots and scatter plots Chapter 11 describes the classes used to display group data one or more y values for each x value as line plots group bar plots stacked bar plots scatter plots open high low close plots and candlestick plots Chapter 12 describes plotting surface data using line and filled contours Chapter 13 14 15 and 16 de
392. rdinate values that define the starting and ending points of the axis line It is a mistake to try to invert the axis i e an axis where the scale decreases from left to right or bottom to top by setting axis minimum to a value greater than the axis maximum The software swaps the values if this happens Create an inverted axis by first defining an inverted physical coordinate system using one of the PhysicalCoordinates derived classes Place the axis in the inverted coordinate system The minimum and maximum of a linear axis can assume any numeric values This differentiates the linear axis from logarithmic and time axes that have specific numeric ranges for which they are valid Linear Minor and Major Tick Mark Intervals Major tick marks perpendicular to the axis line divide the line into sub ranges suitable for labeling Minor tick marks also perpendicular to the axis line further subdivide the space between the major tick marks into even smaller intervals The major tick mark interval for a linear axis is set equal to a specified integer number of minor tick intervals forcing major tick marks to always fall on a minor tick mark It is important that the tick mark intervals fall on rounded values appropriate to the physical scale of the chart It is not appropriate to look at the range maximum value 170 Axes minimum value and divide by some integer For example an axis with endpoints 5 to 30 should have a major tick mark in
393. rdinates simpleTimeScale new TimeCoordinates simpleTimeScale AutoScale datasetsArray Visual Basic Dim xData As ChartCalendar New ChartCalendar 1996 New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj New ChartCalendar 1996 ChartObj Dim yDatal As Double 10 22 33 44 55 46 33 25 Dim yData2 As Double 120 12 43 54 15 26 63 25 Dim yData3 As Double 30 52 13 64 25 76 13 35 Dim zvaluel As Double 0 0 Dim zvalue2 As Double 0 3 Dim zvalue3 As Double 0 6 MARCH APRIL MAY JUNE JULY AUGUST NOVEMBER ChartObj FEBRUARY 5 She Bly 5 5 _ BH Oly SEPTEMBER 5 OCTOBER 5 Di 14 9 24 19 24 19 134 Scaling and Coordinate Systems Dim depthvalue As Double 1 0 All of the datasets reference the same xData array of ChartCalendar dates though this does not have to be the case Dim datasetl As TimeSimpleDataset _ New TimeSimpleDataset Sales1 xData yDatal xvaluel depthvalue Dim dataset2 As TimeSimpleDataset _ New TimeSimpleDataset Sales2 xData yData2 xvalue2 depthvalue Dim dataset3 As TimeSimpleDataset _ New TimeSimpleDataset Sales3 xData yData3 xva
394. re an x value represents the numeric value of a pie wedge and a y value specifies the offset or explosion of a pie wedge with respect to the center of the pie 42 Class Architecture Aetius Mutual Fund Asset Allocation Click on any pie wedge to see a detail Pie Chart PieCharts SimplePieChart PieChart This class plots data in a simple pie chart format It uses data organized as arrays of x and y values where an x value represents the numeric value of a pie wedge and a y value specifies the offset or explosion of a pie wedge with respect to the center of the pie The depth of the pie is set using the associated datasets ImplicitDepthValue property Simple Plot Classes SimplePlot SimpleBarPlot SimpleLineMarkerPlot SimpleLinePlot SimpleScatter Plot Simple plots use data organized as a simple array of xy points where there is one y for every x Simple plot types include line plots scatter plots bar graphs and line marker plots SimplePlot This class is an abstract base class for all simple plot classes SUOMI Class Architecture 43 Production of Green Bars is Up Bars Cylinders Cones e e Te ei e o o e e o gg e e e e e eo ae A CN N N CN N Bar plots can be represented using solid bars cyliners or cones Data values can be displayed for each bar SimpleBarPlot Simple bar plots Bargraphs SimpleBars This class displays data in a bar format Individual bars the
395. re two major types of data supported by the dataset classes The first is simple xy data where for every x value there is one y value The second data type is group data where every x value can have one or more y values A couple of variants of the simple xy datasets include a simple dataset type that can substitute ChartCalendar values as the x values and a dataset type that is used to plot contour data A variant of the group dataset type also uses ChartCalendar values as the x values Copies of the original data arrays are stored The original source data can be deleted once the dataset is created If you want to make any changes to the data you must change the data in the dataset not the original source data Datasets can be initialized using CSV comma separated value files The CSV file is a common file structure that can share data between spreadsheets databases and word processing programs Datasets can also write CSV files loadable into other programs If you need to plot data stored in a database either save the data as a CSV file or read the data into arrays Once the data is in either format inititialize a dataset using the appropriate class and constructor The ChartDataset class is the abstract base class for all of the dataset classes It contains data common to all dataset classes such as the x value array the number of x values the dataset name and the dataset type 2 2 D Datasets and 3D Datasets The dataset cla
396. ring method to change the default date time format See the documentation for the Net DateTime ToString method to figure out the various formatting options for the date time format string If you are into internationalization and difficult to understand Net documentation you can also create your own DateTimeFormatInfo object installing it in the CSV object using CSV SetTimeDateFormat method The date time format string and the DateTimeFormatInfo object apply to both CSV files used for input and CSV files used for output If an attempt is made to read date time values that do not match the desired format the data values are set to invalid date time values You can retrieve a copy of the date time data using the TimeSimpleDataset GetTimeXData method It returns an array of ChartCalendar objects and it is not a reference to the underlying data The underlying data is stored as double values that represent the millisecond equivalent of the date time values The TimeSimpleDataset GetXData and GetYData methods return references to the underlying data You can also modify a point at a time using one of the SetTimeDataPoint SetTimeXDataValue and SetYDataValue methods If you need to add new points to the dataset increasing its size use one of the AddTimeDataPoint or InsertTimeDataPoint methods Delete data points using the DeleteTimeDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method
397. rithm is owned by the large computer data processing company Unisys Programmers who write commercial applications that use this file format may be subject to paying Unisys royalties For this reason we do not intent to write any code that explicitly supports the GIF file format If you after having considered all of the alternatives still require GIF files then create a System Drawing Imaging ImageFormat instance that uses a GIF image format and use that to initialize the chart3dnet BufferedImage class The same holds true for all image formats 16 Sometimes the major tick marks of an axis are missing the associated tick mark label The axis labeling routines are quite intelligent Before the label is drawn at its calculated position the software does a check to see if the bounding box of the new axis label intersects the bounding box of the previous axis label If the new label is 480 FAQs going to overlap the previous label the label is skipped You can override this default behavior by calling the objects SetOverlapLabelMode method SetOverlapLabelMode ChartObj OVERLAP LABEL DRAW Another option for horizontal axes only is to stagger the tick mark labels A stagger automatically alternates the line on which the tick mark label is placed SetOverlapLabelMode ChartObj OVERLAP LABEL STAGGER 17 How do I change the order the chart objects are drawn For example I want one of my grid objects to be drawn under the charts line pl
398. rmalized coordinates maps the upper left corner of the plot area volume to the xyz coordinates 0 0 0 0 0 0 and the lower right corner of the plot area volume to the xyz coordinates 1 0 1 0 0 0 Chart Scaling and the Net Drawing2D Matrix The System Drawing Drawing2D Matrix class can handle a large number of scaling operations including linear operations that look at first glance capable of transforming chart physical coordinates to Net device coordinates Why not use the Drawing2D Matrix class There are at least four reasons First the Drawing2D Matrix class not only scales the endpoints of lines which is what we want it also has the unwanted side effect of scaling the thickness of lines It is important that the thickness of lines remain unchanged regardless of the desired physical coordinate system Second the Drawing2D Matrixtransform does not handle logarithmic scaling needed for physical coordinate systems that use logarithmic or semi logarithmic scaling Third the Drawing2D Matrix class does not support discontinuous scales as needed date time scale and coordinate classes Fourth and last a point transformed using a Drawing2D Matrixundergoes a time consuming relatively complicated matrix math calculation involving a 3x3 matrix For these reasons the coordinate conversion routines do not use the Drawing2D Matrix class Other chart classes use the Drawing2D Matrix class for scaling and rotation of graph objects such as shapes ima
399. rnet Explorer Chapter 25 is a collection of Frequently Asked Questions about QCChart3D for Net 2 Class Architecture of the QCChart3D for Net Class Library Major Design Considerations This chapter presents an overview of the QCChart3D for Net class architecture It discusses the major design considerations of the architecture e QCChart3D uses the Net System Drawing API model and the System Windows Forms classes e New charting objects can be added to the library without modifying the source of the base classes e There are no limits regarding the number of data points in a plot the number of plots in graph the number of axes in a graph the number of coordinate systems in a graph e There are no limits regarding the number of legends arbitrary text annotations bitmap images geometric shapes titles data markers cursors and grids in a graph e Users can interact with charts using classes using System EventHandler delegate event driven model e The Net Framework 2 0 that is included with Visual Studio 2005 does not include a 3D plotting library analogous to the System Drawing Drawing2D drawing library While there are high quality and high speed 3D libraries for Net most notable Direct3D DirectX and OpenGL they have significant shortcomings most notable in the area of printing This software implements its own 3D graphics engine and then renders the resulting points lines text and polygons using the the Syste
400. ross the width or height of the plot area volume of the chart Grid This class defines the grid lines associated with an axis Grid lines are perpendicular to an axis extending the major and or minor tick marks of the axis across the width or height of the plot area volume of the chart This class works in conjunction with the LinearAxis LogAxis and TimeAxis classes 50 Class Architecture Chart Text Classes ChartText ChartTitle AxisTitle ChartLabel NumericLabel TimeLabel StringLabel The chart text classes draw one or more strings in the chart window Different classes support different numeric formats including floating point numbers date time values and multi line text strings International formats for floating point numbers and date time values are also supported ChartText This class draws a string in the current chart window It is the base class for the ChartTitle AxisTitle and ChartLabel classes The ChartText class also creates independent text objects Other classes that display text also use it internally ChartTitle This class displays a text string as the title or footer of the chart AxisTitle This class displays a text string as the title for an axis The axis title position is outside of the axis label area Axis titles for y axes are rotated 90 degrees ChartLabel This class is the abstract base class of labels that require special formatting NumericLabel This class is a subclass of the ChartLabel cl
401. rt Candlestick Plots in Technical Analysis 12 01 06 1 01 07 2 01 07 3 01 07 4 02 07 The Open Close box is filled if the open price is greater than the close price Candlestick plot FinancialExamples CandlestickChart CandlestickPlot This displays stock market data in an open high low close format common in financial technical analysis The CandlestickPlot class can plot the candlestick symbols as a 2 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every candlestick symbols is set independently The depth of the central 3D recrtangle is set using the associated datasets ImplicitDepthValue property Class Architecture 33 Cell Plot of Population Density sou Uewen ISESO D WO e2ueisiQ 0 100 200 Mean Family Income 1000 The Cell plot will plot rectangles of any size color and postion Cell plot ScatterPlots CellPlotChart CellPlot This class displays a collection of rectangular objects with independent positions widths and heights specified using the values of the associated group dataset The CellPlot class can plot the cells as a 25 D chart where the z value of the plot is fixed using the associated datasets ImplicitZV alue property or as a 3D chart where the z value for every cellis set independently The depth of the 3D rectangle is set using the associated datasets ImplicitDepthV alue prop
402. rtObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 15 90 0 8 Set rotational parameters Point3D protate new Point3D 10 20 0 Simple Plot Objects 239 pTransforml AbsRotateCoordinateSystem protate pTransforml TheTransform3D ActualLightSource new Point3D 0 0 0 1 Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a simple scatter plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid Color Blue attribl SetSymbolSize 10 SimpleScatterPlot thePlotl new SimpleScatterPlot pTransforml Datasetl ChaftOb CUBESD attribl chartVu AddChartObject thePlot1 Visual Basic Define dataset Dim Datasetl As New TimeSimpleDataset First xl yl Datasetl ImplicitZValue 0 5 Dim Dataset2 As New TimeSimpleDataset Second xl y2 Create a coordinate system for the data Dim pTransforml As New TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 0 15 0 9 0 8 Set rotational parameters Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate pTransforml TheTransform3D ActualLightSource New Point3D 0 0 0 1 Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a simple scatter plot Dim attri
403. rtObj MINUTE 45 Dim minZoomYRange As Double 0 01 Dim zoomLimits As Dimension New Dimension minZoomTimeRange minZoomYRange zoomObj SetZzoomRangeLimits zoomLimits 16 Data Tooltips DataToolTip Tooltip is a catchall phrase for a popup window that displays useful information about an object A data tooltip is a popup box that displays the value of a data point in a chart The data value can consist of the x value the y value or both values for a given point in a chart The tooltip values are displayed using the numeric and time formats supported by the NumericLabel and TimeLabel classes Simple Data Tooltips Class DataToolTip MouseListener DataToolTip The DataToolTip class implements Net mouse event delegates It implements and uses the mouse events OnMouseMove OnMouseDown and OnMouseUp The default operation of the DataToolTip class traps the mouse pressed event It calculates which chart object intersects the mouse cursor and which data points for the intersecting object are closest Next it pops up a window and displays the x value and or y value representing the data point When the mouse button is released the OnMouseUp event the tooltip popup window is deleted The tooltip data point search algorithm is complicated by the situation that many chart objects occupy a much larger area than the data point that 1s represented Bars are a good example A bar can occupy a large area yet the actual data value repres
404. rtPrint constructor for printing multiple ChartView graphs per page Visual Basic Overloads Public Sub New _ ByVal components As ChartView _ ByVal posrects As Rectangle3D _ C public ChartPrint ChartView components Rectangle3D posrects components Specifies an array of ChartView objects to be printed posrects An array of position rectangles Rectangle3D objects that place the related ChartView graph on the printed page Only the x y width and height properties of the position rectangle are used The position rectangle values are expressed in normalized 0 0 to 1 0 printer output page coordinates The value 0 0 is the upper left corner and the value 1 0 is the lower right corner of the printed page Graphs must still retain their aspect ratio so no matter what the size of the positioning rectangle either the height or the width of the positioning rectangle will end up being the limiting factor controlling the page rendered size of the graph File and Printer Rendering 415 Call the ChartPrint DoPrintDialog method after creating the ChartPrint object Then call the ChartPrint DoPrintPage method rendering the chart to the printer If the DoPrintDialog method is not called prior to DoPrintPage the DoPrintPage method automatically invokes the DoPrintDialog method Subsequent calls to DoPrintPage will not invoke the DoPrintDialog method Using All of the Paper When Printing The PRT_MAX mode prints the char
405. rtView class has three resize modes that it can use to resize graph objects placed in the graph NO RESIZE OBJECTS AUTO RESIZE OBJECTS The resizeMultiplier stays fixed at 1 0 Resizing the graph window does not affect the size and thickness of the charts graph objects Text will stay the same size and lines will stay the same thickness The overall chart shrinks it is just that size of the chart text and the thickness of the chart lines do not change Resize the window small enough and the chart text will overlap and the lines used to draw the chart will look thick when compared to the chart size Resizing the graph window causes the size and thickness of the charts graph objects to resize The auto resize algorithm looks at which dimension changed the most x or y and uses the larger of the two changes to calculate new sizes for lines and text Text and lines will shrink the same percentage Resize the chart window with a minimum change in the charts aspect ratio the change in the chart size will be very close to the change in the font size and line thickness If the charts aspect ratio changes drastically the font size and line thickness will resize to reflect the dimension that was reduced the most This minimizes the condition where text overlaps though it may make the text unreadable if the chart size changes from large to a small with a large aspect ratio change MANUAL RESIZE OBJECTS The resizeMultiplier for each object has
406. rtVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis Customize the axis by adding the following lines after the creation of the xAxis object Custom linear axis example C double xAxisIntercept 5 double xAxisIntercept2 0 double xAxisOrigin 0 0 double xAxisMinorTickSpace 1 0 ll ou int xAxisMinorTicksPerMajor double xAxisMinorTickLength ll C double xAxisMajorTickLength 10 int xAxisTickDirection ChartObj AXIS MIN xAxis SetAxisIntercept xAxisIntercept sets the y intercept of the x axis xAxis SetAxisIntercept2 xAxisIntercept2 sets the z intercept of the x axis xAxis SetAxisTicks xAxisOrigin xAxisMinorTickSpace xAxisMinorTicksPerMajor xAxisMinorTickLength xAxisMajorTickLength xAxisTickDirection Axes 175 Visual Basic Dim xAxisIntercept As Double 5 Dim xAxisIntercept2 As Double 0 Dim xAxisOrigin As Double 0 0 Dim xAxisMinorTickSpace As Double 1 0 Dim xAxisMinorTicksPerMajor As Integer 5 Dim xAxisMinorTickLength As Double 5 Dim xAxisMajorTickLength As Double 10 Dim xAxisTickDirection As Integer ChartObj AXIS_MIN Dim xAxis As LinearAxis New LinearAxis xAxis SetAxisIntercept xAxisIntercept xAxis SetAxisIntercept2 xAxisIntercept2 xAxis SetAxisTicks xAxisOrigin xAxisMinorTickSpace _ xAxisMinorTicksPerMajor xAxisMinorTickLength _ xAxisMajorTickLength xAxisTickDirection Logarithmic Axes Scientific engi
407. s the x and z coordinate position for the y axis and the x and y coordinate position for the z axis Since the intercept value is specified using the scale of the perpendicular axis if the perpendicular axis is linear as in the case of semi log graphs the intercept value can be positive negative or 0 0 If the perpendicular axis is logarithmic the intercept value is restricted to a positive range Logarithmic Axis Tick Mark Origin The starting value for the major tick marks does not need to fall at the end of the axis range For example the axis may have a range of 0 175 to 195 It would not make sense to start the major tick mark placement at 0 175 The major tick marks would end up placed at 0 175 1 75 17 5 and 175 The minor tick marks would make even less sense A Axes 177 better major tick mark placement is 0 2 2 20 and 200 The minor tick marks will also fall on even values The logarithmic axis tick mark origin controls the placement of the first major tick mark The other major and minor tick mark positions are automatically calculated based on the initial position of the first major tick mark The tick mark origin must reside in the bounds defined by the axis minimum and maximum inclusive of the endpoints It does not need to be near an endpoint however LogAxis Constructors There are two constructors for LogAxis objects Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByV
408. s 279 Visual Basic Define data values Dim nNumPnts As Integer 5 4 Dim nNumGroups As Integer Dim xValues nNumPnts 1 As ChartCalendar Dim groupBarData nNumGroups 1 nNumPnts 1 As Double theFont New Font Microsoft Sans Serif 10 FontStyle Bold xValues 0 New ChartCalendar 1998 ChartObj JANUARY 1 groupBarData 0 0 6 3 groupBarData 1 0 3 1 groupBarData 2 0 2 2 groupBarData 3 0 1 8 xValues 1 New ChartCalendar 1999 ChartObj JANUARY 1 groupBarData 0 1 5 8 groupBarData 1 1 4 3 groupBarData 2 1 2 8 groupBarData 3 1 1 5 define dataset Dim Datasetl As New TimeGroupDataset GroupTimeData xValues groupBarData Datasetl ImplicitDepthValue 1 0 DEFINE FIRST GRAPH AS A GROUP BAR GRAPH define coordinate system of first chart Dim pTransforml As New TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR force x axis time scale to a specific range pTransforml SetTimeScaleStart New ChartCalendar 1997 ChartObj JANUARY 1 pTransforml SetTimeScaleStop New ChartCalendar 2003 ChartObj JANUARY 1 force starting position of y scale to 0 pTransforml SetScaleStartY 0 define position of chart in graph area pTransforml SetGraphBorderDiagonal 0 1 0 15 0 9 0 45 define chart rotation 280 Group Plot Objects Dim protate As New Point3D 10 20 0 pTransforml AbsRotateCoordinateSystem protate chartVu S
409. s Double 5 Dim xMaxl As Double 15 Dim yMinl As Double 0 Dim yMaxl As Double 105 Dim pTransforml As CartesianCoordinates _ New CartesianCoordinates xMinl yMinl xMaxl yMaxl pTransforml SetGraphBorderDiagonal 0 1 15 90 0 6 Dim xMin2 As Double ll ou amp Dim xMax2 As Double 150 Dim yMin2 As Double 0 Dim yMax2 As Double 105 Dim pTransform2 As CartesianCoordinates New CartesianCoordinates xMin2 yMin2 xMax2 yMax2 pTransform2 SetGraphBorderDiagonal 0 1 15 90 0 6 ChartView Object Resize Modes Every GraphObj object has absolute size properties such as font size or line thickness Resize a window and these absolute size parameters are NOT changed No matter how 154 The Chart View you resize a chart if you set a text object to a font size of 10 the text object will always return a font size of 10 regardless if the text now appears larger or smaller Instead the value of the resizeMultiplier adjusts to represent the proportional change in the window size In calculating the font size and the line thickness the current size properties are multiplied by the resizeMultiplier The initial value of the resizeMultiplier is 1 0 and the objects size properties correspond exactly to the initial settings Shrink the ChartView window and the resizeMultiplier for each object is set to a value that is less than 1 0 Enlarge the window and the resizeMultiplier is set to a value greater than 1 0 The Cha
410. s a group Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation A DateTimeFormatInfo object and a date time format string in the CSV class control the interpretation of the ChartCalendar values The format in the file must match the format specified for the CSV class The underlying conversion mechanism calls the DateTime ToString String formatstring DateTimeFormatInfo info method for the conversion The default format for the date time formatstring object is M dd yy Call the SetDateTimeFomatString method to change the default date time format See the documentation for the Net DateTime ToString method to figure out the various formatting options for the date time format string If you are into internationalization and difficult to understand Net documentation you can also create your own DateTimeFormatInfo object installing it in the CSV object using CSV SetTimeDateFormat method The date time format string and the DateTimeFormatInfo object apply to both CSV files used for input and CSV files used for output If an attempt is made to read date time values that do not match the desired format the data values are set to invalid date time values You can retrieve a copy of the date time data using the TimeGroupDataset3D GetTimeXData method It returns an array of ChartCalendar objects and it is not a reference to the underlying data The underlying data is stored as double values that represent
411. s class Full decimal conversion 0 000015 Scientific notation 1 5e 5 Exponent notation 1 5x10 Percent format 76 Business format where B M and K are used to represent billions millions and thousands 1043M 11 0K e Currency format 123432 e Business currency format The business format combined with the currency format 123K StringAxisLabels The LinearAxis and LogAxis axis types use this class Arbitrary strings MA PA JEFF Sales 194 Axis Labels TimeAxisLabels The TimeAxis axis types use this class e Time formats hh mm ss hh mm mmiss etc e Date formats mm dd yy dd mm yy mm yy etc e Time Date formats mmm ddd yyy hh mm ss Class AxisLabels GraphObj ChartText AxisLabels The AxisLabels class is the abstract base class for all axis label objects It contains the properties and methods common to subclasses implementing more specialized axis labels Axis Label Text The AxisLabels class includes a reference to a Font object If a valid font is not supplied a default font is created and used Every axis labels object can have a unique font associated with it The Font object defines the font typeface size and style The font for any of the axis labels can be set using the AxisLabels SetTextFont method The AxisLabels class manages other text attributes not directly associated with the font These include the text foreground color the text background color a
412. s d rta Re ro en qtu pel 376 20 Text CLASSES RD 381 Important note about ChartText rotatons 381 Simple Text Class s aures el 382 Class ChartTeXtii iieiea een epe ive utate dec e E oC des 382 Chart Title C 38868 cs sues es al 387 das Chart A sere li 387 Class Acts DIO o eset eodd dl ettet EE tu C ERN 390 Numeric Time and String Label Classes au aaa 392 Class CharlEabel zunehmen 392 21 Adding Lines Shapes Images and Arrows to a Chat 401 Important note about rotations an ga rv eremi on Creo uen dec og aun epo aai 401 Genetic Shape Classes uses RU Y doe c IE 402 Class Charts INA oak ee vost morer cud ee 402 Chart Image Class mo 405 E lass Chartlmage nun eu u 405 Generic ATOW Class aan ke 408 ECC P uan a NE 408 22 File and Printer Rendering Classes a eee eh aa veta Ce ee aes 413 krett DR EE 413 Class ChattPrint sascha Hee NET avait sui cold t lateres 413 Using All of the Paper When Printing esessseeeseeeeeeenen enn 415 Capturing the Chart as a Buffered Image 421 Class Buttered ima aes nina an rel ie e delete erdt dite epa dus 421 23 Using QCChart3D for Mer to Create Windows Applications s ssssssessesseese0ss000e 425 Critical Note Running the Example Programs sse 425 MAST AL BASIC TOL IMG eR RR E 425 Visual CA for Net retainers er a ea aa e ttes T a 427 24 Using QCChart3D for Mer to Create Web Applications 431 Table of Contents Do Not Try and Compile our ASP Net Applications
413. s line to com quinncurtis chart3dnet ChartView This adds a local version of the control to the project The form code should now look like Public Class UserChartControl2 Inherits com quinncurtis chart3dnet ChartView End Class e Critical Step Make sure you add the following lines to the top of the UserChartControl2 vb code to resolve the QCChart3D and other graphics classes used in the example Imports com quinncurtis chart3dnet Imports System Drawing Imports System Drawing Drawing2D e The step of creating and defining a User Control that inherits from com quinncurtis chart3dnet ChartView only needs to be performed once Any instance of the control that you add to any form in the project will derive from UserChartControD e Build the Solution Build Build Solution This will compile the UserChartControD class and make it accessible as a component on the Toolbox and to derive from If the project fails to compile you need to go back and check the previous steps e Youcan create as many custom chart controls as your application requires Each custom chart control will inherit from the com quinncurtis chart3dnet ChartView control Or e Optional You can create inherited controls from the UserChartControl2 class that you already created Create an inherited control by selecting Project Add Inherited Control Give the inherited control a unique name i e UserChartInheritedControll When you select Open choose UserChartCo
414. scribe classes that add interactive elements to a chart Chapter 13 describes data marker and data cursor classes used to mark and highlight data points using the mouse Chapter 14 describes classes that can move chart objects and individual data points Chapter 15 adds a zooming class where mouse events define a new scaling range for a chart redrawing the chart axes and data automatically Chapter 16 describes a generalized data tool tip class that can display the x and or y data values for a data point or custom text associated with the data point Chapter 17 describes classes for the display of pie charts Chapter 19 describes classes for the display chart legends used to create visual aids for the interpretation of different elements making up the chart Chapter 20 describes generalized classes for displaying formatted text in a chart Chapter 21 describes how to use a generalized shape class for the display of arbitrary lines shapes images and arrows Chapter 22 describes chart printing and the creation of JPEG files 10 Introduction Chapter 23 is a tutorial that describes how to use QCChart3D to create Windows applications using Visual Studio Net Visual C and Visual Basic Chapter 24 is a tutorial that describes how to use QCChart3D to create ASP NET web applications using Visual Studio Net Visual C and Visual Basic It also describes how to embed a ChartView derived user control into a web page that is view using Inte
415. sday Tue T 00 12 07 2000 7 12 2000 202 Axis Labels TIMEDATEFORMAT MY2000 M yyyy 7 2000 TIMEDATEFORMAT Y2000 yyyy 2000 In some cases the TIMEDATEFORMAT Q format for example the DateTime ToString class does not handle the desired conversion In cases like this the date time Format constant is trapped and undergoes additional processing to create the final label That is why some of the date format strings are the same event though the resulting labels are different TimeAxis Labels constructor There is only one main constructor for TimeAxisLabels objects Visual Basic Overloads Public Sub New _ ByVal baseaxis As TimeAxis C public TimeAxisLabel1s TimeAxis baseaxis baseaxis This is the time axis the axis labels are for Other axis label properties font rotation numeric format axis labels direction and numeric precision are automatically set These properties can be explicitly set if you need to override the automatically calculated values SetAxisLabels method Visual Basic Overloads Public Sub SetAxisLabels _ ByVal font As Font _ ByVal rotation As Double _ ByVal labdir As Integer _ ByVal decimalpos As Integer _ ByVal labelends As Integer _ ByVal labcolor As Color C public void SetAxisLabels Font font double rotation int labdir int decimalpos int labelends Color labcolor Axis Labels 203 SetAxisLabelsFormat met
416. sed to display the axis label text The rotation in degrees of label text in the normal viewing plane The justification of the axis label AXIS MIN or AXIS MAX with respect to the tick mark endpoint Specifies whether there should be labels for the axis minimum LABEL MIN maximum LABEL MAX or tick mark starting point LABEL ORIGIN The value of these constants can be OR d together The value of LABEL MIN LABEL MAX LABEL ORIGIN is LABEL ALL The color of the label text An array of strings one for each major tick mark of the related axis If you want to skip the first or any major tick mark use an empty string as the array element 208 Axis Labels StringLabel extracted from the example program Bargraphs LandOfTheFry InitializeV erticalChart String CountryNames um Braz France Australia Spain United States England X axis string labels Each string will label a major tick mark StringAxisLabels xAxisLabl new StringAxisLabels xAxisl xAxisLabl SetAxisLabels theFont 0 ChartObj AXIS MIN ChartObj LABEL ALL Color Black CountryNames 7 xAxisLabl SetColor Color Black chartVu AddChartObject xAxisLabl Dim CountryNames As String Brazil France Australia Spain United States England X axis string labels Each string will label a major tick mark Dim xAxisLabl As New StringAxisLabels xAxisl xAxisLabl SetAxisLabels theFont 0 ChartObj A
417. sender System EventArgs e ChartView chartVu this if chartVu null if printobj null printobj new ChartPrint chartVu else printobj PrintChartView chartVu printobj DoPrintDialog This routine invokes the chart objects PrintPreviewItem method public void PrintPreview object sender System EventArgs e ChartView chartVu this if chartVu null if printobj null printobj new ChartPrint chartVu else printobj PrintChartView chartVu printobj PrintPreviewItem sender e This routine prints a chart by invoking the chart objects DocPrintPage method public void PrintPage object sender System EventArgs e ChartView chartVu this if chartVu null if printobj null printobj new ChartPrint chartVu printobj DoPrintDialog else File and Printer Rendering 417 printobj PrintChartView chartVu printobj DocPrintPage sender e Visual Basic This routine invokes the chart objects PageSetupItem method Public Sub PageSetup ByVal sender As Object ByVal e As System EventArgs Dim chartVu As ChartView Me I Not chartVu Is Nothing Then If printobj Is Nothing Then printobj New ChartPrint chartVu Else printobj PrintChartView chartVu End If printobj PageSetupItem sender e End If End Sub PageSetup This routine invokes the chart objects printer setup dialog method Public Sub PrinterSetup
418. set each bar is not restricted to a z axis plane and can traverse 3D space unrestricted The individual elements of the bar plot are normally 3D bars but you can also set the bar plots BarShapeOption property to a cylinder CYLINDER3D or a cone CONE3D o 3 a E Group bar plots Bargraphs GroupBargraphs GroupBarPlot constructor Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rbarwidth As Double _ ByVal rbarbase As Double _ ByVal attribs As ChartAttribute ByVal nbarjust As Integer _ C public GroupBarPlot PhysicalCoordinates transform GroupDataset dataset double rbarwidth double rbarbase ChartAttribute attribs int nbarjust transform The coordinate system for the new GroupPlot object Group Plot Objects 277 dataset The group bar graph represents the values in this group dataset Individual bars the height of which corresponds to the group values Y 0 Y 1 Y 2 of the dataset rbarwidth The width of the group bars in units of the independent axis All bars within a group are squeezed into the width defined by rbarwidth Each individual bar within the group has a width of rbarwidth dataset GetNumberGroups rbarbase The group bars start at the value rbarbase and extend to the group bar values represented by the dataset attribs An array of ChartAttribute objects sized the same
419. set GetXData and GetYData methods return references to the underlying data You can also modify a point at a time using one of the SetTimeDataPoint SetTimeXDataValue and SetYDataValue methods If you need to add new points to the dataset increasing its size use one ofthe AddTimeDataPoint or InsertTimeDataPoint methods Delete data points using the DeleteTimeDataPoint method In order to see the modified dataset force the graph to redraw using ChartView UpdateDraw method Example of creating a simple time datasets C int nnumpnts 32 ChartCalendar currentdate new ChartCalendar ChartCalendar xl new ChartCalendar nnumpnts double yl new double nnumpnts double z1 new double nnumpnts sapo 100 210 0 43 x1 0 ChartCalendar currentdate Clone currentdate Add ChartObj MONTH 3 for i 1 i lt nnumpnts i xl i ChartCalendar currentdate Clone yl i yl i 1 5 i 0 75 ChartSupport GetRandomDouble Sei Gel 1 0 027 currentdate Add ChartObj MONTH 3 TimeSimpleDataset3D Datasetl new TimeSimpleDataset3D Sales x1 yl z1 Datasetl ImplicitDepthValue 0 4 Visual Basic Dim currentdate As New ChartCalendar Dim nnumpnts As Integer 32 Dim xl nnumpnts 1 As ChartCalendar Dim yl nnumpnts 1 As Double Dim zl nnumpnts 1 As Double Chart Datasets 81 y1 0 100 z1 0 0 1 x1 0 CType currentdate Clone ChartCalendar currentdat
420. sical coordinates barbase The base value for bars in physical coordinates attrib Specifies the attributes line color and fill color of the bars Simple Plot Objects 233 barjust Specifies the justification with respect to the independent data value Use one of the justification constants JUSTIFY MIN JUSTIFY CENTER JUSTIFY MAX A ChartAttribute object sets the outline line color fill color and fill mode Change the ChartAttribute object using the objects SetChartObjAttributes method The simple bar plot SetColor method can be used to change the bar color Individual bars in a simple bar plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods Simple bar plot example extracted from the example program Bargraphs SimpleBars C double bardepth 0 1 double zl 0 7 22 0 45 23 0 2 TimeSimpleDataset Datasetl new TimeSimpleDataset Sales 1 x1 yl zl bardepth TimeSimpleDataset Dataset2 new TimeSimpleDataset Sales 2 x1 y2 z2 bardepth TimeSimpleDataset Dataset3 new TimeSimpleDataset Sales 3 x1 y3 z3 bardepth An array of the datasets TimeSimpleDataset datasetarray Datasetl Dataset2 Dataset3 Auto scale a coordinate system for data pTransforml new TimeCoordinates pTransforml AutoScale datasetarray ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Define plot 1 ChartAttribute attribl new ChartAttrib
421. sides all four axes re scale to match the new chart scale ChartZoom constructor The constructor below creates a zoom object for a single chart coordinate system visual Basic Overloads Public Sub New ByVal component As ChartView _ ByVal transform As PhysicalCoordinates ByVal brescale As Boolean _ Overloads Public Sub New ByVal component As ChartView _ ByVal transform As PhysicalCoordinates ByVal zpos As Double ByVal brescale As Boolean C public ChartZoom ChartView component PhysicalCoordinates transform bool brescale public ChartZoom ChartView component PhysicalCoordinates transform Double zvalue bool brescale component A reference to the ChartView object that the chart is placed in transform The PhysicalCoordinates object associated with the scale being zoomed zpos The z scale position of the zoom rectangle brescale True designates that the scale should be re scaled once the final zoom rectangle is ascertained Zooming 339 Enable the zoom object after creation using the ChartZoom SetEnable true method Retrieve the physical coordinates of the zoom rectangle using the ChartZoom GetZoomMin and GetZoomMax methods Restrict zooming in the x or y direction using the SetZoomXEnable and SetZoomY Enable methods Set the rounding mode associated with rescale operations using the SetZoomXRoundMode and SetZoomYRoundMode methods Call the ChartZoom PopZoomS
422. simple dataset SimpleDataset Datasetl new SimpleDataset First xl yl Point3D datapoint Dataset1 0 Get the xy point at index 0 in the dataset Chart Datasets 69 if datapoint X lt 0 datapoint X Math Abs datapoint x arbitrary Dataset1 0 datapoint Change the datapoint Visual Basic Dim Datasetl As SimpleDataset New SimpleDataset First xl yl Dim datapoint As Point3D Dataset1 0 Get the xy point at index 0 in the dataset If datapoint X lt 0 Then datapoint X Math Abs datapoint X arbitrary Dataset1 0 datapoint Change the datapoint Example of modifying the implict z value and implicit depth value using dataset property C Define a simple dataset used default z value and depth value SimpleDataset Datasetl new SimpleDataset First x1 y1 Datasetl ImplicitZValue 0 3 Datasetl ImplicitDepthValue 0 5 Visual Basic Define a simple dataset used default z value and depth value Dim Datasetl As SimpleDataset New SimpleDataset First xl yl Datasetl ImplicitZzValue 0 3 Datasetl ImplicitDepthValue 0 5 Class SimpleDataset3D ChartObj ChartDataset SimpleDataset SimpleDataset3D The SimpleDataset3D class represents a collection of 3D data points where each data point can have a unique x y and z value The number of xy data points in a simple dataset is referred to as the number of columns or as the property numberDatapoints Thin
423. sing either lines or regions of solid color The last plot object category is the pie chart were a pie wedge represents each data value The size of the pie wedge is proportional to the fraction data value sum of all data values ChartPlot This class is the abstract base class for chart plot objects It contains a reference to a ChartDataset derived class containing the data associated with the plot Contour Plot of the Heat Distribution of a Plasma Torch Degrees C 1000 um 1200 1400 um 1600 um 1800 W E 1900 Ges 2000 mam Ders 2100 c32200 2400 c3 2600 us 2800 3000 2000 1000 The contour plot routines work with either an even grid or a random shown grid Class Architecture 29 Contour fill plot ContourPlots ContourFillPlot ContourPlot This class is a subclass of the ChartPlot class and displays a contour plot using either lines or regions filled with color Group Plot Classes GroupPlot ArrowPlot BubblePlot CandlestickPlot CellPlot ErrorBarPlot FloatingBarPlot FloatingStackedBar GroupBarPlot HistogramPlot LineGapPlot MultiLinePlot MultiRibbonPlot OHLCPlot OHLCBarPlot StackedBarPlot StackedLinePlot StackedRibbonPlot Group plots use data organized as arrays of x and y values where there is one or more y for every x Group plot types include multi line plots stacked line plots stacked bar plots group bar plots error bar plots floating bar plots open hig
424. siref2 As Axis _ ByVal gridaxistype As Integer ByVal gridtype As Integer _ C public Grid Axis axisrefl Axis axisref2 int gridaxistype 212 Axis Grids int gridtype axisref1 axisref2 gridaxistype gridtype The first of two axes associated with the grid The second of two axes associated with the grid The grid is aligned with the tick marks of this axis The grid is parallel to the other axis Use one of the axis constants X AXIS Y AXIS or Z AXIS Specifies if the grid aligns with the major tick marks GRID MAJOR the minor tick marks GRID MINOR or the major and minor tick marks GRID ALL of the reference axis Other grid properties are associated with the line properties used to draw the grid The default values of the grid use a black dotted line of thickness 1 0 Change the default values using the GraphObj methods below SetColor method Visual Basic Overridable Public Sub SetColor ByVal rgbcolor As Color _ C public virtual void SetColor Color rgbcolor SetLineWidth method Visual Basic Overridable Public Sub SetLineWidth ByVal linewidth As Double _ Ct public virtual void SetLineWidth double linewidth SetLineStyle method Visual Basic Overridable Public Sub SetLineStyle ByVal linestyle As DashStyle Ct public virtual void SetLineStyle DashStyle linestyle Axis Grids 213 rgbcolor Sets
425. size As Double _ ByVal npostype As Integer _ C public Marker PhysicalCoordinates transform int nmarkertype double x double y double z double rsize int npostype C public Marker PhysicalCoordinates transform int nmarkertype double rsize int npostype transform nmarkertype rsize npostype The marker constants signify MARKER NULL Places the marker in the coordinate system defined by transform Specifies the shape of the current chart marker Use one of the chart marker constants MARKER NULL MARKER VLINE MARKER HLINE MARKER CROSS MARKER BOX or MARKER HVLINE Specifies the x value of the marker position Specifies the y value of the marker position Specifies the z value of the marker position Specifies the size of the cross hair marker MARKER CROSS and the box marker MARKER BOX in Net device coordinates Specifies the if the position of the marker is specified in physical coordinates normalized coordinates or Net device coordinates Use one of the position constants DEV POS PHYS POS NORM GRAPH POS NORM PLOT POS An invisible marker MARKER VLINE MARKER HLINE MARKER HVLINE MARKER CROSS MARKER BOX Data Markers and Data Cursors 323 The marker is a vertical line extending from the top of the plot area volume to the bottom passing through the x value of the marker position The marker is a horizontal line ex
426. specifies which stocks we want to plot Using the behind code page you can query some database and get the data values from there without passing the data through the HTML page In our Chart3DHTMLAspApp and Chart3DAspWebApp examples we query the Yahoo database of historical stock values and get the data from them Once the chart is create and available as a ChartView object use the BufferedImage class to render the chart as a JPEG file and stream the image back in the response stream of the requesting HTML page Private Sub Page Load ByVal sender As System Object ByVal e As System EventArgs Handles MyBase Load Get Input from HTML ASP page request Dim widthstring As String Request Params Get 0 Dim heightstring As String Request Params Get 1 Dim XDataString As String Request Params Get 2 Dim YDataString As String Request Params Get 3 Dim imagewidth As Integer Integer Parse widthstring Dim imageheight As Integer Integer Parse heightstring Dim chartVu As ChartView GetInitializeChart XDataString YDataString imagewidth imageheight Stream chart back as a JPeg image Dim ChartImage As BufferedImage New BufferedImage chartVu ImageFormat Jpeg get your binary image data here Response ContentType image jpeg ChartImage Savelmage Response OutputStream End Sub Build the Solution Build Build Solution and resolve any errors that might have crept in This example was not designed to be
427. sses that do NOT end in 3D SimpleDataset TimeSimpleDataset GroupDataset and TimeGroupDataset represent 2 5 D data The concept of 2 2 D data is easy to understand if you think of the way most 3D charts are used Data which is normally 2D i e a set of x y data points is displayed in three dimensions using 3D bars 64 Chart Datasets ribbons 3D symbols or some other 3D solid The 2D data is displayed along a plane of constant z value which is fixed for a given dataset but can vary from dataset to dataset Giving the plots associated with the datasets different z values will give the plot a layered look The z value associated with a 2 2 D dataset is set using the datasets ImplicitZ Value property There is a related property ImplicitDepthValue that defines the depth of plot objects those that look to a depth parameter along the z axis By default the z axis of a 3D transform is scaled from 0 1 with 0 representing the screen and representing the maximum displayable depth into the screen The default ImplicitZValue is set to 0 0 and the default ImplicitDepthValue is 0 1 The 3D datasets end in 3D SimpleDataset3D TimeSimpleDataset3D GroupDataset3D and TimeGroupDataset3D Instead of having a a fixed z value for all xy data values in the dataset a 3D dataset has an additional array that stores a unique z data value for each xy data value in the dataset When a plot object is connected to 3D dataset the z value of the plot c
428. start double yl double z1 ChartCalendar dstop double y2 double z2 int nweektype SetTimeCoordinateBounds method Visual Basic Scaling and Coordinate Systems Overloads Public Sub SetTimeCoordinateBounds _ ByVal dstart As ChartCalendar ByVal yl As Double _ ByVal dstop As ChartCalendar ByVal y2 As Double _ ByVal nweektype As Integer _ Overloads Public Sub SetTimeCoordinateBounds _ ByVal dstart As ChartCalendar ByVal yl As Double ByVal zl As Double _ ByVal dstop As ChartCalendar ByVal y2 As Double _ ByVal z2 As Double _ C public void SetTimeCoordinateBounds ChartCalendar dstart double yl ChartCalendar dstop double y2 int nweektype public void SetTimeCoordinateBounds ChartCalendar dstart double yl double zl ChartCalendar dstop double y2 double z2 int nweektype I SetWeekType method 135 136 Scaling and Coordinate Systems Visual Basic Public Sub SetWeekType _ ByVal weektype As Integer _ C public void SetWeekType int weektype If you use the auto scale routines set the week type before you call the TimeCoordinates AutoScale method because the auto scale routines need to take into account the week type For example C TimeSimpleDataset dataset new TimeSimpleDataset Sales xData yData TimeCoordinates simpleTimeScale new TimeCoordinates simpleTimeScale SetWeekType ChartObj WEEK 5D si
429. start new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar dstop new ChartCalendar 1997 ChartObj JANUARY 5 double yl 0 0 double y2 55 0 TimeCoordinates stockTimeScale stockTimeScale new TimeCoordinates stockTimeScale SetTimeCoordinateBounds dstart starttod yl dstop stoptod y2 ChartObj WEEK 5D Visual Basic Dim starttod As Long 9 60 30 60 1000 msecs cooresponding to 9 30 AM Dim stoptod As Long 16 60 60 1000 msecs cooresponding to 4 00 PM Dim dstart As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim dstop As ChartCalendar New ChartCalendar 1997 ChartObj JANUARY 5 Dim yl As Double 0 0 Dim y2 As Double 55 0 Dim stockTimeScale As TimeCoordinates New TimeCoordinates StockTimeScale SetTimeCoordinateBounds dstart starttod yl dstop stoptod y2 ChartObj WEEK 5D If you use the auto scale routines set the week type and the time of day range before you call the TimeCoordinates AutoScale method because the auto scale routines need to take into account the number of seconds per day and the week type For example C the tradingDay array is initialized with the stock trading dates the stockPrice array is initialized with stock price data TimeSimpleDataset Datasetl new TimeSimpleDataset First tradingDay stockPrice long startTime 9 60 30 60 1000 msecs cooresponding to 9 30 AM long stopTime 16 60 60
430. t yAxis LinearAxis yAxis2 new LinearAxis pTransforml ChartObj Y AXIS yAxis2 SetAxisIntercept xAxis GetAxisMax yAxis2 SetAxisTickDir ChartObj AXIS MAX yAxis2 SetColor Color White chartVu AddChartObject yAxis2 VB Dim xAxis As New TimeAxis pTransforml xAxis SetColor Color White chartVu AddChartObject xAxis Dim yAxis As New LinearAxis pTransforml ChartObj Y AXIS Default places y axis at miniumum of x coordinate scale yAxis SetColor Color White chartVu AddChartObject yAxis Dim yAxis2 As New LinearAxis pTransforml ChartObj Y AXIS 464 FAQs yAxis2 SetAxisIntercept xAxis GetAxisMax yAxis2 SetAxisTickDir ChartObj AXIS MAX yAxis2 SetColor Color White chartVu AddChartObject yAxis2 The other common reason to have multiple axes in a chart is to delineate the simultaneous use of different coordinate systems in the chart In this case each coordinate system has an x and or y axis to differentiate it from the other coordinate systems When the different coordinate systems are created they usually overlay the same area of the chart The default positioning of the axes for each coordinate system will all overlay one another making the axes unreadable In the y axis case you will want to offset additional axes to the left or to the right of the default axis position using the SetAxisIntecept method When using the SetAxisIntercept method make sure you specify the position using t
431. t as large as possible while maintaining the same aspect ratio as the original ChartView If the width is the limiting factor the bottom of the printed page will always be blank The same is true of the PRT RECT mode While the PRT RECT mode can control the size and position of the chart on the printed page it cannot change the aspect ratio of the chart The only way to fill the printed page in portrait or landscape mode is establish the screen ChartView size with the same aspect ratio as the 8 1 2 x 11 printed page printable area about 6 5 x 9 assuming the 1 inch default margins Assuming portrait mode a ChartView sized to 650W x 900H will fill the page as will other ChartView sizes with the same proportions 500W x 692H 400W x 554H 300W x 415 etc If you are printing in landscape mode then the chart width and height values would be swapped ChartPrint example rendering a single graph to a printed page extracted from the example program LinePlotSalesVolume LinePlotSales Volume This routine invokes the chart objects PageSetupItem method public void PageSetup object sender System EventArgs e ChartView chartVu this if chartVu null if printobj null printobj new ChartPrint chartVu else printobj PrintChartView chartVu printobj PageSetupItem sender e This routine invokes the chart objects printer setup dialog method 416 File and Printer Rendering public void PrinterSetup object
432. t is specified in physical coordinates normalized coordinates or Net device coordinates Use one of the position constants DEV POS PHYS POS NORM GRAPH POS NORM PLOT POS nnumformat Specifies the numeric format of the label Use one of the numeric format constants DECIMALFORMAT SCIENTIFICFORMAT BUSINESSFORMAT ENGINEERINGFORMAT PERCENTFORMAT CURRENCEYFORMAT and EXPONENTFORMAT ndecimal The number of digits to display to the right of the decimal point Text Classes 395 xjust Specifies the horizontal justification of the text Use one of the text justification constants JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX yjust Specifies the vertical justification of the text Use one of the text justification constants JUSTIFY MIN JUSTIFY CENTER or JUSTIFY MAX rotation The rotation 360 to 360 degrees of the text in the normal viewing plane The TimeLabel and StringLabel classes are similar unique properties for each are listed below See the special note Special mote about ChartText rotations at the beginning of this chapter TimeLabel contructors Visual Basic Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal date As ChartCalendar ByVal timeformat As Integer _ Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal date As ChartCalendar ByVal x As Double _ ByVal y As Double _ ByVal npostype As Integer _ ByVal timeformat As
433. t of the z axis SetAxisIntercept2 sets the y intercept of the z axis Visual Basic Public Sub SetAxisIntercept _ ByVal intercept As Double Public Sub SetAxisIntercept2 _ ByVal intercept As Double Ct public void SetAxisIntercept double intercept public void SetAxisIntercept2 double intercept i SetAxisTicks method Visual Basic Overloads Public Sub SetAxisTicks _ ByVal tickorigin As Double ByVal tickspace As Double _ ByVal ntickspermajor As Integer _ Visual Basic Overloads Public Sub SetAxisTicks _ ByVal tickorigin As Double ByVal tickspace As Double _ ByVal nminortickspermajor As Integer ByVal minorticklength As Double ByVal majorticklength As Double ByVal tickdir As Integer _ C public void SetAxisTicks double tickorigin double tickspace int ntickspermajor public void SetAxisTicks double tickorigin double tickspace int nminortickspermajor double minorticklength double majorticklength int tickdir Axes 173 intercept Sets the intercept of this axis with the perpendicular axis in physical coordinates tickorigin The tick marks start at this value tickspace Specifies the spacing between minor tick marks ntickspermajor Specifies the number of minor tick marks per major tick mark minorticklength The length of minor tick marks in Net device coordinates majorticklength The length of major tick marks in Net device coordinates
434. t rotations You will find that sometimes you want to position text that is dependent on the chart coordinate system including the 3D rotational transforms that the coordinate system goes through before it is rendered to the screen Examples are chart annotations that must maintain a fixed relationship to physical coordinates of the charts plotting area In this example you use a constructor that has as a parameter the coordinate system that you want the text to rotate with Other times you will want the opposite to be true even though the chart can be rotated you want certain text to remain fixed with respect to the screen viewport of the ChartView window Examples of this are the chart titles footers and legends All of the ChartText derived classes have versions that do NOT require that you pass in a coordinate system as the first parameter In this case a default Cartesian coordinate system is created for that object and that coordinate system is NOT rotated when the other coordinate systems of the chart are rotated You can position the text using either a plot area normalized NORM PLOT POS or graph area normalized NORM GRAPH POS coordinate system When ChartText is attached to a charts coordinate system the text is positioned in the 3D space of that coordinate system As the 3D chart is rotate the starting position of the text will rotate with it The rendered text string does NOT undergo a total 3D transformation however This becaus
435. t sets the x intercept of the z axis SetAxisIntercept2 sets the y intercept of the z axis Visual Basic Public Sub SetAxisIntercept _ ByVal intercept As Double Public Sub SetAxisIntercept2 _ ByVal intercept As Double C4 public void SetAxisIntercept double intercept ye public void SetAxisIntercept2 double intercept SetAxisTicksAttributes method Visual Basic Public Sub SetAxisTicksAttributes _ ByVal minorticklength As Double _ ByVal majorticklength As Double _ ByVal tickdir As Integer _ C public void SetAxisTicksAttributes double minorticklength double majorticklength int tickdir I intercept Sets the intercept of this axis with the perpendicular axis in physical coordinates Axes 189 minorticklength Specifies the length of a minor tick mark in Net device coordinates majorticklength Specifies the length of a major tick mark in Net device coordinates tickdir Specifies the direction of the tick marks with respect to axis line Use one of the following tick direction constants AXIS MIN AXIS CENTER AXIS MAX Customize the line and tick mark drawing properties of the axis using the SetLineWidth SetLineStyle and SetColor methods Simple time axis example C Define a Time coordinate system ChartCalendar xMin new ChartCalendar 1996 ChartObj FEBRUARY 5 ChartCalendar xMax new ChartCalendar 2002 ChartObj JANUARY 5 double yMin
436. t trade anes hoes appropeiate for Posas ranging trom 1 second to 100 years Time Date Axes with Custom Hour Range 8 20 AM to 4 00 PM Daw Hew A Howser hae GL Oe Ba med uua 10200 103103 Mee amp 30 1200 LS 1200 10109 10203 3 WoutMesr Movet Mitte 30 mm 1200 mo ane am 20000 1000 1100 1200 1300 am wows ees 13 Moss Minute 35 Min uteMisutel w vo 1000 no LU LJ L ww oo 8 Misule Minste Mosule 15 Sevesds LS a LL LL d Sen am 3000 2400 amp 3200 2300 3400 wo 10103 Mimte Second 5 Second econd 82000 22100 82200 42300 83000 ro rn sm 2020 mm ene Atma wis che be customised foe DE hour range Class Architecture 25 26 Class Architecture TimeAxis This class is the most complex of the axis classes It supports time scales ranging from 1 milliseond to hundreds of years Dates and times are specified using the ChartCalendar class The major and minor tick marks can fall on any time base where a time base represents seconds minutes hours days weeks months or years The scale can exclude weekends for example Friday October 20 2000 is immediately followed by Monday October 23 2000 A day can also have a custom range for example a range of 9 30 AM to 4 00 PM The chart time axis excludes time outside of this range This makes the class very useful for the inter day display of financial market information stock bonds commodities options etc across several days months or years Axis Label Classes
437. tCalendar CalendarDaysAdd currentdate 1 weekmode Next i Dim zvalue As Double 0 0 Dim depthvalue As Double 0 5 Dim Datasetl As New TimeGroupDataset Stock Data xValues stockPriceData zvalue depthvalue Example of creating a simple time datasets from a CSV file C CSV csvDataFile new CSV TimeGroupDataset Datasetl new TimeGroupDataset csvDataFile TimeGroupDataset csv 0 0 Datasetl ImplicitZValue 0 5 Datasetl ImplicitDepthValue 0 5 Write out dataset as a CSV file under a different file name Datasetl WriteTimeGroupDataset csvDataFile TimeGroupDataset2 csv Visual Basic Default time date format is M dd yyyy Dim csvDataFile As CSV New CSV Chart Datasets 99 Create a dataset based on a previously saved csv file Dim Datasetl As TimeGroupDataset _ New TimeGroupDataset csvDataFile TimeGroupDataset csv 0 0 Datasetl ImplicitZzValue 0 5 Datasetl ImplicitDepthValue 0 5 Write out dataset as a CVS file Datasetl WriteTimeGroupDataset csvDataFile TimeGroupDatasetl csv Read it back in just as a test Datasetl ReadTimeGroupDataset csvDataFile TimeGroupDatasetl csv 0 0 Class TimeGroupDataset3D ChartObj ChartDataset GroupDataset TimeGroupDataset TimeGroupDataset3D The TimeGroupDataset3D represents group data where every x value has one or more y values and a z value It uses ChartCalendar dates as the x values and floating
438. tColor Color Green attribs 4 SetColor Color Red attribs 5 SetColor Color Cyan attribs 6 SetColor Color Magenta attribs 7 SetColor Color Orange attribs 8 SetColor Color Yellow attribs 9 SetColor Color Chartreuse attribs 10 SetColor Color MediumVioletRed attribs 11 SetColor Color Salmon attribs 12 SetColor Color DarkKhaki thePlotl new ContourPlot pTransforml datasetl contourlevels attribs lineflags labelflags numcontourlevels ChartObj CONTOUR LINE thePlotl SetPolygonGridOn true thePlotl SetContourLineAlgorithm ChartObj CONTOUR LINEWALK NumericLabel contourlabel thePlotl GetPlotLabelTemplate Font contourLabelFont new Font Microsoft Sans Serif 8 FontStyle Regular contourlabel SetDecimalPos 0 contourlabel SetTextFont contourLabelFont contourlabel TextBgMode true contourlabel TextBgColor Color White thePlotl SetPlotLabelTemplate contourlabel Contour Plotting 318 chartVu AddChartObject thePlot1 Visual Basic Dim contourlevels As Double 0 300 600 900 1200 1500 1800 2100 2400 2700 3000 3300 3600 pTransforml New CartesianCoordinates 7 7 0 7 7 3000 pTransforml SetGraphBorderDiagonal 0 1 0 1 0 8 0 85 CreateRegularGridPolysurface Dim attribs numcontourlevels As ChartAttribute For i 0 To numcontourlevels Dim color As Color Color FromArgb CInt 255 ChartSu
439. tExample Dialog box for chart example Introduction 7 FinancialExamples OHLC plots candlestick plots financial log plots option chart technical analysis chart FormControlExamples Adding check boxes scrollbars and tables to charts ImageCharts Using images as chart data elements chart backgrounds and annotations LabeldDatapoints Label the data points of a simple line chart LinePlotSales Volume Simple line plot example with printing and save image menu LogPlots Logarithmic plots for financial charts and engineering charts MiscCharts A line gap chart MouseListeners Data tooltips data cursors moving data points moving chart objects MultiLinePlots Group multi line plots stacked line plots multiple single line graphs MultipleAxes Multiple axes graphs PieCharts Simple pie charts and pie charts combined with line and bar plots ResizeExamples Fixed size frame resizeable frame with fixed sized objects resizeable frame with resizeable objects scrollable panel as a view into a much larger fixed size frame ScatterPlots Simple scatter line and line marker plots scatter plots with variable size and color symbols cell plots arrow plots Also labeling the data point values or a line marker plot SimpleLinePlots Simple line plots with linear and time date coordinate systems Also filled and step lines UserChartExample1 Simple example displays line and scatt
440. tLabel5 new ChartText pTransforml theLabelFont I b 250uA 15 5 yi 4 85 t l zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel5 ChartText currentLabel6 new ChartText pTransforml theLabelFont I b 300uA 195 5 yi1 5 95 l zdepth Chartobj PHYS POS 386 Text Classes chartVu AddChartObject currentLabel6 ChartText currentLabel7 new ChartText pTransforml theLabelFont I b 350uA 15 5 yl 6 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel 7 ChartText regionLabel new ChartText pTransforml theLabelFont Linear An Region 4 0 40 zdepth ChartObj PHYS POS chartVu AddChartObject regionLabel VB Create a transparent rectangle shape object and position it in 3D space Dim zdepth As Double Datasetl ImplicitZValue Place an annotation at each line plot Dim theLabelFont As New Font Microsoft Sans Serif 10 FontStyle Bold Dim currentLabell As New ChartText pTransforml theLabelFont I b 50uA 15 5 yl1 0 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabell Dim currentLabel2 As New ChartText pTransforml theLabelFont I b 100uA 15 5 yl 1 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel2 Dim currentLabel3 As New ChartText pTransforml theLabelFont I b 150uA 15 5 y1 2 85 1 zdepth ChartObj PHYS POS chartVu AddChartObject currentLabel3 Dim currentLabel4 As New
441. tPoint methods accomplish this The DataCursor class positions the mouse cursor and retrieves the initial xy coordinates The CaleNearestPoint method for each plot object SimpleLinePlot ScatterPlot etc in the graph determines the nearest data point to the mouse cursor for that object Once all the plot objects are checked the data point nearest the mouse cursor position is marked by placing a Marker object at that exact xy location The example DataCursorsAndMarkers Markers extends the previous Marker and DataCursor examples In that example the OnMouseUp event of the subclassed DataCursor object processes the plot objects looking for the nearest point and then places a Marker object and a numeric label at that point Marking a data point Adapted from the DataCursorsAndMarkers Markers example program See the actual program for the source 328 Data Markers and Data Cursors Click and drag the mouse releasing the mouse near a data point 30 20 10 10 0 0 0 2 0 4 0 6 0 8 1 0 DataCursorsAndMarkers DataCursors Another common reason for locating a data point is to display information associated with that data point A good example is stock market data A typical stock market display is a one month chart of daily closing values for one or more stocks You want to be able to click on a point in the chart and have the open high low and closing value for that day displayed in a pop up box The example program FinancialEx
442. tack method at any time and the chart scale reverts to the minimum and maximum values of the previous zoom operation Repeated calls to the PopZoomStack method return the chart scale is to its original condition after which the PopZoomStack method has no effect Simple zoom example extracted from the ZoomExamples SimpleZoom example In this example a new class derives from the ChartZoom class and the OnMouseDown event overridden The event invokes the PopZoomStack method Otherwise the default operation of the ChartZoom class controls everything else ChartZoom Out Click the right button to return to the previous zoom scale opm u ew Simple zooming ZoomExamples SimpleZoom C Custom zoom class that implements a zoom stack private class ZoomWithStack ChartZoom public ZoomWithStack ChartView component CartesianCoordinates transform double zpos bool brescale base component transform zpos brescale 340 Zooming public override void OnMouseDown MouseEventArgs mouseevent if right mouse buggon pop zoom stack one level if mouseevent Button amp MouseButtons Right 0 this PopZoomStack else base OnMouseDown mouseevent Set up zoom mouse listener double zpos 0 0 ZoomWithStack zoomObj new ZoomWithStack chartVu pTransforml zpos true zoomObj SetButtonMask MouseButtons Left zoomObj SetZzoomYEnable true zoomObj SetZzoomXEnable true zoomObj SetZoomXRoundMod
443. takes too long to draw the graph What is wrong with the software and what can I do to make it faster The software runs as fast as we can make it We do not have any hidden switches that will speed up the software What you need to do is to step back and think about the best way to display your data A fundamental issue that many programmers fail to consider is the relationship between the resolution of the rasterized screen image of the plot and the resolution of the data A typical chart image will have 500 1000 pixels as the horizontal resolution of the plotting area This would imply that in the 100M data point example above every horizontal pixel would represent 50K to 100K data points Obviously this is a terrible mismatch In fact it is a bad match for datasets that have more than a couple of thousands points So what you do is compress the data before it is displayed Take the 100M data points and compress them down to 2K data points The data compression can take several forms You can take an average of every N points The resulting dataset will be reduced by a factor of N You can also find the sum for every N points the minimum value of every N points the maximum of every N points or both the minimum and maximum of every 2N points The last compression method minimum and maximum will always capture any minimums and maximum in the data The result is that a 2000 point compressed dataset where there are at least two data points per
444. tastring xdata i toEixedil 4 s ydatastring ydatastring ydata i toFixed 1 Add last values without comma xdatastring xdatastring xdata 5 toFixed 1 ydatastring ydatastring ydata 5 toFixed 1 function makenewdata var i 0 for i 0 i lt 6 i xdata i i ydata i 15 0 Math random lt SCRIPT gt Clicking the button will invoke a chart update using new random data The new image source URL is displayed in the HTML text box Display the URL of the HTML page and you should see a chart a button and a text field Using QCChart3D for Net to Create Web Applications 439 XData 1 2 3 4 5 6 YData 3 7 5 11 13 15 HTML Page Containing Graph Image e Another method is to use two WebForms in the ASP application The first form is setup much like the previous example The aspx page contains nothing and the aspx cs behind code page does all the work defining a chart and streaming the result back as a JPEG image The second WebForm page is used to host a collection of Web controls place on the aspx page One of these Web controls would be an Image web control The behind code page for this WebForm would connect the URL of the Image control to the first WebForm page which does nothing be serve up charts Our example Chart3DASPWebApp uses this approach The reason you might want to take this approach is that it is much easier to wire up the controls on a WebForm page using the aspx
445. tems 125 double xData 12 2 42 5 0 7 8 9 F double yData 2 33 440 5554 46123 332322 5435641 64567551 SimpleDataset dataset new SimpleDataset Sales xData yData CartesianCoordinates simpleScale new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE simpleScale AutoScale dataset simpleScale SetScaleStopX 10 simpleScale SetScaleStartX 1 0 Visual Basic Dim xData As Double 2 3 4 5 6 7 8 9 Dim yData As Double 2 33 440 5554 46123 332322 5435641 64567551 Dim dataset As SimpleDataset New SimpleDataset Sales xData yData Dim simpleScale As CartesianCoordinates _ New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE simpleScale AutoScale dataset simpleScale SetScaleStopX 10 simpleScale SetScaleStartX 1 0 Coordinate Systems using times and dates Many charting applications use data where the x coordinate values are in the form of time and date records The creation of a powerful yet flexible time and date physical coordinate system for scaling charts is a major challenge Important design goals include e The programmer scales the graph using objects of the ChartCalendar class e The scale should support a continuous range of date time scaling from milliseconds to hundreds of years e The scale should have a 5 7 day week option e A day does not have to be 24 hours long instead it can have a specific range for example 8 30 AM to 4 00 PM
446. tending from the left of the plot area volume to the right passing through the y value of the marker position The marker combines both MARKER VLINE and MARKER HLINE marking the data point with horizontal and vertical lines The marker is a cross hair centered on the marker position Set the size of the cross hair using Net device coordinates in the object constructor or later using the setMarkerSize method The marker is a box centered on the marker position Set the size of the box using Net device coordinates in the object constructor or later using the setMarkerSize method Drop a marker anywhere on a plot by specifying the coordinates The example below places a 10 pixel wide marker in the center of the plot area volume Simple marker example C CartesianCoordinates pTransforml new CartesianCoordinates 0 0 0 0 0 0 10 0 20 0 1 0 pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR double xpos 5 0 double ypos 10 0 double zpos 0 0 Marker amarker new Marker pTransforml ChartObj MARKER BOX xpos ypos Zpos 10 ChartObj PHYS POS theChartView AddChartObject amarker Visual Basic 324 Data Markers and Data Cursors Dim pTransforml As CartesianCoordinates New CartesianCoordinates 0 0 0 0 0 0 10 0 20 0 1 0 pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Dim xpos As Double 5 0 Dim ypos As Double 10 0 D
447. teps e You can add as many custom chart controls as you need for the given HTML page you plan to display charts in Each custom chart control will inherit from the com quinncurtis chart3dnet ChartView control Or e Optional You can create inherited controls from the UserChartControll class that you already created Create an inherited control by selecting Project Add Inherited Control Give the inherited control a unique name i e UserInheritedControll When you select Open choose UserControll in the Inheritance Picker The result is new control added to the project Build the solution and the UserInheritedControll control will be added to the WindowsControlLibrary1 DLL in addition to the UserControll e View the UserChartControll cs underlying C code We placed all of the chart creation code in the InitializeChart method This method is called in the UserControll constructor otherwise the UserControll appears as an empty shell Add whatever properties you need to get data from the HTML file into the chart control ChartTitleText and YMax in the example below using System using using using using using using using using Using QCChart3D for Net to Create Web Applications 451 System Collections System ComponentModel System Drawing System Data System Windows Forms System Drawing Imaging System Drawing Drawing2D com quinncurtis chart3dnet namespace WindowsControlLibraryl lt summary gt
448. terval of 5 or 10 and a minor tick mark interval 1 0 Dividing the axis range 30 5 35 0 by 10 will result in a tick interval of 3 5 which is inappropriate for either major or minor tick intervals The programmer can calculate the proper tick mark intervals using custom algorithms or use the automatic methods that are used by default in the axis constructors Linear Axis Intercepts An axis resides in a 3 dimensional physical coordinate system The minimum and maximum values for the axis provide coordinate information for only one dimension x coordinates in the case of an x axis and y coordinates in the case of the y axis The missing coordinates needed to position the axis are the axis intercepts The axis intercepts specifies the y and z coordinate position for the x axis the x and z coordinate position for the y axis and the x and y coordinate position for the z axis Linear Axis Tick Mark Origin The axis major and minor tick mark intervals specify the space between adjacent tick marks A minor tick mark interval of 1 0 and a major tick mark interval of 5 0 may result in major tick marks at 0 0 5 0 10 0 15 0 20 0 etc It can also result in major tick marks at 0 88769 4 11231 9 11231 14 11231 19 11231 etc Obviously the first example is the desired tick mark placement The difference between the two examples is the tick mark starting point or origin In the first example the tick mark origin is 0 0 and in the s
449. tes of the legend rectangle rwidth The width in chart normalized coordinates of the legend rectangle rheight The height in chart normalized coordinates of the legend rectangle attrib Specifies the outline color outline line style and fill color for the nlayoutmode legend rectangle Specifies if the legend has a horizontal or vertical layout Use one of the orientation constants HORIZ DIR row major or VERT DIR column major Add legend items to a legend using one of the AddLegendItem methods AddLegendItem methods Visual Basic Overloads Public Function AddLegendItem ByVal stext As String _ ByVal nsymbol As Integer _ ByVal attrib As ChartAttribute ByVal thefont As Font _ As Integer Overloads Public Function AddLegendItem ByVal stext As String _ ByVal symbolshape As GraphicsPath ByVal attrib As ChartAttribute ByVal thefont As Font _ As Integer Overloads Public Function AddLegendItem ByVal legenditem As LegendItem _ As Integer Overloads Public Function AddLegendItem ByVal stext As String _ ByVal nsymbol As Integer _ ByVal chartobj As GraphObj ByVal thefont As Font _ As Integer Overloads Public Function AddLegendItem ByVal stext As String _ ByVal symbolshape As GraphicsPath ByVal chartobj As GraphObj ByVal thefont As Font _ As Integer Overloads Public Function AddLegendItem ByVal stext As String _ ByVal nsymbol As Integer _ ByVal chartobj As ChartPlot
450. thValue method calculates the width of the bars as a function of time in this case a width of 0 8 months Cell Plots Class CellPlot GraphObj ChartPlot GroupPlot CellPlot The CellPlot class extends the GroupPlot class and displays cell plots A cell plot is a collection of rectangular objects with independent positions widths and heights specified using the values of the associated group dataset The number of groups must be three The X Y 0 values of the group dataset represent the xy position of the lower left corner of each cell the Y 1 values set the width of the cell and the Y 2 values set the height of the cell Each cell can be filled using a color or an image When used with a 2 D dataset the position of the each cell with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthV alue property specifies the 3D depth of the cell box When a cell plot is attached to a 3D dataset each cell box is not restricted to a z axis plane and can traverse 3D space unrestricted e e sen ueueM 1808019 w014 eoueistQ 3 100 200 Mean Family Income 1000 260 Group Plot Objects Cell plot ScatterPlots CellPlotChart CellPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset ByVal attrib As ChartAttribute C public CellPlot PhysicalCoordinates
451. the attached datasets ImplicitZ Value property The datasets ImplicitDepthValue property specifies the 3D depth of the bar When a Group Plot Objects 281 histogram bar plot is attached to a 3D dataset each bar is not restricted to a z axis plane and can traverse 3D space unrestricted The individual elements of the histogram plot are normally 3D bars but you can also set the bar plots BarShapeOption property to a cylinder CYLINDER3D or a cone CONE3D v g B Gi 3 A Q S gt amp o e 3 c 9 KH c 9 e 40 Age Group Histogram plots Bargraphs HistogramBars Histogram constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rbarbase As Double _ ByVal attrib As ChartAttribute i C public HistogramPlot PhysicalCoordinates transform GroupDataset dataset double rbarbase ChartAttribute attrib transform The coordinate system for the new HistogramPlot object dataset The histogram plot represents the values in this group dataset The number of groups must be two The X values of the group dataset represent the x position of the lower left corner of each histogram bar the Y 0 values set the height of each histogram bar and the Y 1 values set the width of each histogram bar 282 Group Plot Objects rbarbase The histogram bars start at the value rbarbase and extend to the histogram bar values
452. the current number of legend items Simple legend example extracted from the example program Bargraphs GroupBargraphs o o E Group bar plot with legend Bargraphs GroupBargraphs C Define the legend Font legendFont new Font Microsoft Sans Serif 12 FontStyle Bold ChartAttribute legendAttributes new ChartAttribute Color Black 1 DashStyle Solid Color Tan legendAttributes SetLineFlag true StandardLegend legend new StandardLegend 0 25 0 08 0 6 0 2 legendAttributes StandardLegend HORIZ_DIR legend AddLegendItem Prozac ChartObj HBAR attribl legendFont legend AddLegendItem Zoloft ChartObj HBAR attrib2 legendFont legend AddLegendItem Paxil ChartObj HBAR attrib3 legendFont legend AddLegendItem Celexa ChartObj HBAR attrib4 legendFont VB Define the legend Dim legendFont As New Font Microsoft Sans Serif 12 FontStyle Bold Dim legendAttributes As New ChartAttribute Color Black 1 DashStyle Solid Color Tan legendAttributes SetLineFlag True Dim legend As New StandardLegend 0 25 0 08 0 6 0 2 legendAttributes StandardLegend HORIZ DIR 376 Legends legend AddLegendItem Prozac ChartObj HBAR attribl legendFont legend AddLegendItem Zoloft ChartObj HBAR attrib2 legendFont legend AddLegendItem Paxil ChartObj HBAR attrib3 legendFont legend AddLegendItem Celexa ChartObj HBAR attrib4 legendFont Bubble Plot Legends Class
453. the group dataset Set using one of the bubble plot type constants SIZE BUBBLE RADIUS or SIZE BUBBLE AREA Specifies the attributes line color and fill color of the bubble plot circles A bubble is by default rendered as a sphere You can explicity set the rendering mode using the BubblePlotMode property setting it to either SPHERE3D or CYLINDER3D An individual bubble in a bubble plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Bubble plot example extracted from the example program ScatterPlots BubbleChart C 254 Group Plot Objects Create dataset TimeGroupDataset Datasetl new TimeGroupDataset First xl yl By adding the y1 0 index value position to the vill index radius value we should get an auto axis scale that takes into accout the bubble radius Datasetl SetStackMode ChartObj AUTOAXES STACKED Datasetl ImplicitZValue 0 5 Define coordinate sysetm for data TimeCoordinates pTransforml new TimeCoordinates ChartObj TIME SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Move starting date back one month to allow for radius of bubble Define a bubble plot hartAttribute attribl new ChartAttribute Color Orange 0 DashStyle Solid olor Orange hartObj SIZE BUBBLE RADIUS attribl c BubbleP
454. the objects global line color line thickness line style fill color and fill mode Change the ChartAttribute object using the objects SetChartObjAttributes method There is also a group of methods that set individual simple plot properties SetColor SetLineWidth and SetLineStyle The line step style is using the SetStepMode method Individual line segments in a simple line plot object can have unique properties Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods Simple 2 1 2D ribbon plot example extracted from the example program SimpleLinePlots LineFill C Simulate data and create datasets Initialize datasets to 0 size to test AddTimeDataPoint method below TimeSimpleDataset Datasetl new TimeSimpleDataset Sales 0 Datasetl ImplicitZValue 0 0 Datasetl ImplicitDepthValue 0 3 TimeSimpleDataset DatasetArray Datasetl Dataset2 Dataset3 Create a coordinate system scaled for the data pTransforml new TimeCoordinates pTransforml AutoScale DatasetArray ChartObj AUTOAXES FAR ChartObj AUTOAXE S FAR Position chart in graph area pTransforml SetGraphBorderDiagonal 0 15 sly 92 0 75 Set rotational parameters pTransforml AbsRotateCoordinateSystem new Point3D 10 15 0 Set chart 3D depth Simple Plot Objects 227 chartVu SetFractionalZViewportDepth 0 2 Define plot as a simple ribbon plot ChartAttribute attribl new ChartAttribute Color Blue 1
455. the primary line color for the chart object linewidth Sets the line width in device coordinates for the chart object linestyle Sets the line style for the chart object Use one of the Net Drawing2D DashStyle enumerated constants Dash DashDot DashDotDot Dot or Solid Grid example Extracted from the example program Bargraphs SimpleBarChart C Auto scale a coordinate system for data pTransforml new TimeCoordinates Define the x or time axis TimeAxis xAxis new TimeAxis pTransforml chartVu AddChartObject xAxis Define the y axis LinearAxis yAxis new LinearAxis pTransforml ChartObj Y AXIS chartVu AddChartObject yAxis Define the z axis LinearAxis zAxis new LinearAxis pTransforml ChartObj Z AXIS zAxis SetColor Color Black zAxis AxisIntercept xAxis AxisMax zAxis AxisIntercept2 yAxis AxisMin zAxis AxisTickSpace 0 25 zAxis AxisMinorTicksPerMajor 1 chartVu AddChartObject zAxis 214 Axis Grids Define the x axis grid for the XY_MAXZ PLANE Grid xgrid new Grid xAxis yAxis ChartObj X AXIS ChartObj GRID MAJOR xgrid SetColor Color White xgrid SetLineWidth 1 xgrid SetLineStyle DashStyle Solid chartVu AddChartObject xgrid Define the y axis grid for the XY_MAXZ PLANE Grid ygrid new Grid xAxis yAxis ChartObj Y AXIS ChartObj GRID MAJOR ygrid SetColor Color White ygrid SetLineStyle DashStyle Solid ygrid SetLineWidth
456. thods AddLegendItem methods Visual Basic Overloads Public Function AddLegendItem _ ByVal ByVal ByVal ByVal stext As String rsize As Double _ attrib As ChartAttribute thefont As Font _ As Integer Overloads Public Sub New ByVal ByVal ByVal ByVal ByVal ByVal C plot As BubblePlot _ rx As Double _ ry As Double _ rwidth As Double rheight As Double _ attrib As ChartAttribute public int AddLegendItem string stext double rsize ChartAttribute attrib Font thefont 378 Legends public BubblePlotLegend BubblePlot plot double rx double ry double rwidth double rheight ChartAttribute attrib stext Specifies the text string for the legend item rsize Specifies the size of the bubble for this item in the same units as the coordinate system the bubble plot is placed in chartobj The color and fill attributes for the legend item are copied from the attributes of this chart object thefont Specifies the text font for the legend item The method returns the current number of legend items Simple legend example extracted from the example program ScatterPlots BubbleChart Bubble Size 40 Million I E Q E S c o a a 2001 Time of bankruptcy Bubble plot sphere mode ScatterPlots BubbleChart C Legends 379 Define a bubble plot hartAttribute attribl new ChartAttribute Co
457. tialized data Net cannot include an invalid floating point number in a calculation so it is best to try and avoid them Another type of invalid data is data that is a valid floating point number but is never less considered invalid by the user Often when data is outside of a predetermined range it is invalid Mark a data value in a dataset invalid using the ChartDataset SetValidData method If a data value equals Double MAX VALUE it is also considered invalid Taking the logarithm of 0 or a negative number If a charting package is capable of logarithmic and semi logarithmic plotting it must be protected against the error condition of taking the log of any number lt 0 0 This often happens when a chart is initially setup with a linear scale with a minimum physical coordinate value of 0 0 and a maximum coordinate value equal to some large number The user changes to a logarithmic scale but forgets to change the minimum coordinate value of the scale from 0 0 to some positive non zero number The coordinate conversion routines will halt the first time the log 0 0 is in a calculation The same is also true if the minimum coordinate value is any negative number This software always checks for this condition and changes the minimum coordinate value using the following criteria If the minimum coordinate value for a logarithmic scale is less than or equal to 0 0 it is assumed that the user made an error and coordinate value is set to 1 0 If the mi
458. tickPlot thePlotl new CandlestickPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj DAY_OF_YEAR 0 8 defaultattrib fillatterib gt chartVu AddChartObject thePlot1 Visual Basic Create a group dataset to hold stock data Dim zvalue As Double 0 0 Dim depthvalue As Double 0 1 Dim Datasetl As New TimeGroupDataset Stock Data xValues StockPriceData zvalue depthvalue Define a coordinate system to hold data Dim pTransforml As New TimeCoordinates Set coordinate system for 5 day week pTransforml SetWeekType ChartObj WEEK 5D pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES NEAR Position chart in graph area pIransforml SetGraphBorderDiagonal 0 13 0 15 0 9 0 8 Set rotational parameters Dim protate As New Point3D 10 10 0 pTransforml AbsRotateCoordinateSystem protate Set chart depth chartVu SetFractionalZViewportDepth 0 1 Define a candlestick plot Dim defaultattrib As New ChartAttribute Color Black 1 DashStyle Solid Color White defaultattrib SetFillFlag True Dim fillattrib As New ChartAttribute Color Black 1 DashStyle Solid Color Red fillattrib SetFillFlag True Dim thePlotl As New CandlestickPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj DAY OF YEAR 0 8 defaultattrib fillattrib Group Plot Objects 259 chartVu AddChartObject thePlotl Note how the ChartCalendar GetCalendarWid
459. time scale must take into account the non uniform nature of date time tick marks and tick mark labels A month has a variable number of days When months are used as the major tick mark interval and days are the minor tick mark interval the software must be capable of plotting 28 29 30 or 31 minor tick marks days for every major tick mark months depending on the month Another example is the use of months as the major tick mark interval and weeks as the minor tick mark interval Some months will have four minor tick marks start of each new week while others will have five The software also needs to take into the variable number of days year due to leap years Date time axis tick marks and labels become even more complicated when the 5 day 7 day option and the working hours day options are used The QCChart3D for Net library uses milliseconds as the underlying time base for all date time coordinate system When a scale is created using two ChartCalendar dates as end points the software calculates the number of milliseconds seconds between the starting date and the ending date If the coordinate system is based on a 5 day week the milliseconds associated with the missing weekends are not counted If the coordinate system does not use 24 hours a day the milliseconds associated with the missing part of the day are not counted A linear coordinate system is scaled using the range of calculated milliseconds Data points plotted in this coordinate
460. tip SetEnable true chartVu SetCurrentMouseListener datatooltip Visual Basic Dim toolTipFont As New Font SansSeri f 10 FontStyle Regular Dim datatooltip As New DataToolTip chartVu Dim xValueTemplate As New TimeLabel ChartObj TIMEDATEFORMAT MDY Dim yValueTemplate As New NumericLabel ChartObj CURRENCYFORMAT 0 datatooltip GetToolTipSymbol SetColor Color Green datatooltip SetXValueTemplate xValueTemplate datatooltip SetYValueTemplate yValueTemplate datatooltip SetDataToolTipFormat ChartObj DATA_TOOLTIP_XY_TWOLINE datatooltip SetEnable True chartVu SetCurrentMouseListener datatooltip Complex data tooltip example Adapted from the FinancialExamples OpeningScreen example In this example the tooltip will display the x value ofthe data point as a date and the y value as currency The x and y values are displayed on one line side by side www quinn curtis com m Price m NASDAQ 1 24 03 Open 34 18 High 39 17 M a 1 06 03 1 13 03 1 20 03 1 27 03 2 03 03 2 10 03 2 17 03 2 24 03 3 03 03 Complex data tooltip FinancialExamples OpeningScreen 354 Data Tooltips C Define a data tooltip Font toolTipFont new Font Microsoft Sans Serif 10 FontStyle Regular DataToolTip datatooltip new DataToolTip chartVu TimeLabel xValueTemplate new TimeLabel ChartObj TIMEDATEFORMAT MDY use minimal construc
461. to 0 pTransforml SetScaleStartX 0 prransforml SetScaleStartY 0 Set rotate parameters pTransforml AbsRotateCoordinateSystem new Point3D 10 20 0 chartVu SetFractionalZViewportDepth 0 1 Define attributes for multi line plot ChartAttribute attribl new ChartAttribute Color Blue 1 DashStyle Solid ChartAttribute attribArray new ChartAttribute numGroups for i20 i lt numGroups i attribArray i ChartAttribute attribl Clone Define a multi line plot MultiRibbonPlot thePlotl new MultiRibbonPlot pTransforml Datasetl attribArray chartVu AddChartObject thePlotl Visual Basic Simulate data Dim numPoints As Integer 100 Dim numGroups As Integer 7 Dim xl numPoints 1 As Double Dim yl numGroups 1 numPoints 1 As Double Dim i j As Integer 292 Group Plot Objects For i D Fe numPoints 1 x1 1 CDbl i 0 2 For j 0 To numGroups 1 er 4339 e 3 CES D OT GDBII T 5 0 41 0 Math Expil x1 1 7 0 31 Next j Next i Initialize a couple of data values with the bad data value constant yl 0 5 ChartObj rBadDataValue yl 3 15 ChartObj rBadDataValue Create a group dataset to hold all of the multi line data Dim Datasetl As New GroupDataset First xl yl Datasetl ImplicitDepthValue 0 2 Datasetl ImplicitZValue 0 6 Auto scale a coordinate system Dim pTransforml As New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LI
462. to the underlying pattern in the data A chart does not have to be an output only display medium A chart can be interactive where a user interacts with a chart using the mouse and keyboard changing colors changing axes limits highlighting data values are just a few of the interactive options programmers want in the charts they create The goal of the Microsoft Net framework is to create an integrated platform for the creation distribution and execution of application programs The applications can be standalone programs suitable for a single computer and a single user networked client server applications or Internet applications involving local and remote servers Fast powerful and flexible charting graphics is common requirement for application programs in all market segments A long term goal of Microsoft Net is platform independence This implies that application programs written in C of VB will run not only on Windows platforms but UNIX and Linux based machines Since Microsoft Net is optimized for Windows making use of large portions of the Win32 operating system porting it to UNIX based machines is a lot of work Microsoft s goal of platform independence may be achieved not by supporting UNIX but by eliminating the competition until all computers run some form of Windows The major competitor to Microsoft Net is Java the language invented by Sun Computer In some respects Java already is what Microsoft Net wants to be Y
463. tor NumericLabel yValueTemplate new NumericLabel ChartObj CURRENCYFORMAT 2 use minimal constructor ChartText textTemplate new ChartText toolTipFont textTemplate SetTextBgColor Color FromArgb 255 255 204 textTemplate SetTextBgMode true ChartSymbol toolTipSymbol new ChartSymbol null ChartObj SQUARE new ChartAttribute Color Black toolTipSymbol SetSymbolSize 5 0 datatooltip SetTextTemplate textTemplate datatooltip SetXValueTemplate xValueTemplate datatooltip SetYValueTemplate yValueTemplate datatooltip SetDataToolTipFormat ChartObj DATA TOOLTIP OHLC datatooltip SetToolTipSymbol toolTipSymbol datatooltip SetEnable true chartVu SetCurrentMouseListener datatooltip Visual Basic Dim toolTipFont As New Font SansSerif 10 FontStyle Regular Dim datatooltip As New DataToolTip chartVu Dim xValueTemplate As New TimeLabel ChartObj TIMEDATEFORMAT MDY Dim yValueTemplate As New NumericLabel ChartObj CURRENCYFORMAT 2 Dim textTemplate As New ChartText toolTipFont textTemplate SetTextBgColor Color FromArgb 255 255 204 textTemplate SetTextBgMode True Dim toolTipSymbol As New ChartSymbol Nothing ChartObj SQUARE New ChartAttribute Color Black toolTipSymbol SetSymbolSize 5 0 datatooltip SetTextTemplate textTemplate datatooltip SetXValueTemplate xValueTemplate datatooltip SetYValueTemplate yValueTemplate datatooltip SetDataToolTipFormat C
464. transform GroupDataset dataset ChartAttribute attrib transform The coordinate system for the new CellPlot object dataset The cell plot represents the values in this group dataset The number of groups must be three The X Y 0 values of the group dataset represent the xy position of the lower left corner of each cell the Y 1 values set the width of the cell and the Y 2 values set the height of the cell attrib Specifies the attributes line color and line style for the cell plot Cells can be filled with an image instead of a solid color Use the CellPlot SetPlotImage method to place a System Drawing Image object in the cells of a cell plot One image applies to all of the cells in the cell plot An individual cell in the cell plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects Cell plot example extracted from the example program ScatterPlots CellPlotChart C Create dataset GroupDataset Datasetl new GroupDataset First x1 yl Datasetl ImplicitDepthValue 0 3 Group Plot Objects 261 Datasetl SetAutoScaleNumberGroups 1 picks up on width but because data is random should still work CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR Add in max width
465. transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String ByVal x As Double ByVal y As Double _ ByVal npostype As Integer ByVal xjust As Integer ByVal yjust As Integer ByVal rotation As Double Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal tstring As String ByVal x As Double ByVal y As Double ByVal z As Double _ ByVal npostype As Integer ByVal xjust As Integer ByVal yjust As Integer _ ByVal rotation As Double Ct public StringLabel PhysicalCoordinates transform Font tfont string CString double x double y int npostype public StringLabel PhysicalCoordinates transform Font tfont string tetring double x double y int npostype int xjust utt Frust double rotation public StringLabel tstring PhysicalCoordinates transform Font tfont string tetring double x double y double z int npostype int xjust int yjust double rotation A reference to a string object Text Classes 397 Place text in is a time coordinate system TimeCoordinates by converting the time x position to milliseconds and using the milliseconds as the x position value 398 Text Classes See the special note Special mote about ChartText rotations at the beginning of this chapter NumericLabel and StringLabel examples extracted from the example
466. try and call the application from Internet Explorer using a URL address that mimics the expected invoking format http quinn curtis com Chart3DWebApplicationl WebForml aspx WIDTH 666 amp HEIGHT 448 amp XDATA 1 2 3 4 9 5 amp YDATA 3 7 5 11 13 15 While not particularly useful if you type in everything correctly it should display the chart defined in the Chart3DWebApplicationl ASP page e You will probably want to create a HTML page to host the call to the ASP page This can be done using FrontPage a simple editor and the Visual Studio IDE A simple HTML page that connects the URL address above to an HTML image tag appears below The complete source is the file HTMLPagel htm found in the Chart3DWebApplicationl project folder lt DOCTYPE HTML PUBLIC W3C DTD HTML 4 0 Transitional EN gt HTML HEAD lt TITLE gt lt TITLE gt lt META content Microsoft FrontPage 5 0 name GENERATOR gt lt HEAD gt lt BODY gt lt FORM id Forml name simplegraph gt lt P gt lt P gt Using QCChart3D for Net to Create Web Applications 437 lt IMG height 448 src http quinn curtis com Chart3DWebApplicationl WebForml aspx WIDTH 666 amp HEIGHT 448 amp XDATA 1 2 3 4 5 6 amp YDATA 3 7 5 11 13 15 width 666 name thegraph gt lt P gt lt P gt lt p gt lt input type button value Update Image name B1 onclick updategraph ID Buttonl amp nbsp amp P input type text name Ti size 152
467. ts the mouse cursor Hold the mouse button down and the rectangle tracks the mouse Release the mouse button and the position of the graph object updates to reflect the new physical coordinates of the bounding rectangle When an object is moved its movement is restricted to the XY plane The position of the object retains its starting z position value If no objectfilter parameter is specified the default object filter is GraphObj MoveObject constructors Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ ByVal buttonmask As MouseButtons _ ByVal objectlfilter As String 330 Moving Chart Objects and Data Points Overloads Public Sub New _ ByVal component As ChartView _ ByVal buttonmask As MouseButtons _ C public MoveObj ChartView component MouseButtons buttonmask string objectifilter I public MoveObj ChartView component MouseButtons buttonmask component A reference to the ChartView object that the chart is placed in buttonmask Specifies the mouse button that is trapped to invoke a move objectfilter The fully qualified class name of the base class that is used to filter the desired class objects The string ChartText causes the routine to move only objects derived from the ChartText class If you want to move only specific objects of a given class create a special subclass of that class Then create your moveable objects using that subclass Then specify your class name
468. ttribArray 1 SetFillColor Color Yellow attribArray 2 SetFillColor Color Magenta attribArray 3 SetFillcolor Color Orange attribArray 4 SetFillColor Color Gray attribArray 5 SetFillColor Color Red attribArray 6 SetFillColor Color Green StackedRibbonPlot thePlotl Group Plot Objects 311 new StackedRibbonPlot pTransforml Datasetl attribArray chartVu AddChartObject thePlotl1 Visual Basic Define attributes for stacked line plot Dim attribl As New ChartAttribute Color Black 1 DashStyle Solid Color Blue Dim attribArray numGroups As ChartAttribute For i 0 To numGroups 1 attribArray i CType attribl Clone ChartAttribute Next i attribArray 0 SetFillColor Color Blue attribArray 1 SetFillColor Color Yellow attribArray 2 SetFillColor Color Magenta attribArray 3 SetFillColor Color Orange attribArray 4 SetFillColor Color Gray attribArray 5 SetFillColor Color Red attribArray 6 SetFillColor Color Green Define a stacked line plot StackedRibbonPlot thePlotl new StackedRibbonPlot pTransforml Datasetl attribArray 12 Contour Plotting ChartPlot ContourPlot The ContourPlot class displays contour data organized in a ContourDataset dataset The line contour graph draws contituous lines through the data at xy values representing equal values of z analogous to the equal pressure lines isobars of a weather map
469. ty The datasets ImplicitDepthValue is ignored When a OHLC plot is attached to a 3D dataset each OHLC group is not restricted to a z axis plane and can traverse 3D space unrestricted 1 01 07 1 08 07 1 15 07 1 22 07 1 29 07 296 Group Plot Objects Open High Low Close OHLC plot FinancialExamples OHLCChart OHLCPlot constructor Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal dataset As GroupDataset _ ByVal rflagwidth As Double _ ByVal attrib As ChartAttribute C public OHLCPlot PhysicalCoordinates transform GroupDataset dataset double rflagwidth ChartAttribute attrib transform The coordinate system for the new OHLCPlot object dataset The OHLCPlot plot will represent the group open high low close values in this group dataset The number of groups must be four The Y 0 values of the group dataset represent the values for Open the Y 1 values for High the Y 2 values for Low and the Y 3 values for Close rflagwidth The width of the open and close markers in units of the independent axis attrib Specifies the attributes line color and line style for the open high low close plot An individual OHLC element in an OHLC plot object can have unique attributes Use the objects SetSegmentAttributesMode and SetSegmentAttributes methods in the manner described for SimplePlot objects OHLC plot example extracted from the example program Financial
470. ue 3D data points where every data point is characterized by a unique x y and z value It also includes a property ImplicitDepthValue that is used to set the depth of 3D data objects such as 3D bars and ribbons ribbons Class Architecture 17 Scale Classes ChartScale LinearScale LogScale TimeScale The ChartScale abstract base class defines coordinate transformation functions for a single dimension It is useful to be able to mix and match different scale transform functions for x y and z dimensions of the PhysicalCoordinates class The job of a ChartScale derived object is to convert a dimension from the current physical coordinate system into the current working coordinate system LinearScale A concrete implementation of the ChartScale class It converts a linear physical coordinate system into the working coordinate system LogScale A concrete implementation of the ChartScale class It converts a logarithmic physical coordinate system into the working coordinate system TimeScale A concrete implementation of the ChartScale class converts a date time physical coordinate system into the working coordinate system Coordinate Transform Classes Transform3D UserCoordinates WorldCoordinates WorkingCoordinates PhysicalCoordinates CartesianCoordinates TimeCoordinates The coordinate transform classes maintain a 3D coordinate system Different coordinate systems are used to position and draw objects in a graph Examples
471. ue for the scale needed to display the bubble If SIZE BUBBLE AREA is used you may want to restrict the auto scale routines to the just look at the bubble position using SetAutoScaleNumberGroups 1 as seen in the ArrowPlot example You could then add in some fudge factor to make sure that the scale shows the entire bubble The example under CellPlot demonstrates this Candlestick Plots Class CandlestickPlot GraphObj ChartPlot GroupPlot CandlestickPlot The CandlestickPlot class is a subclass of the GroupPlot class It extends the GroupPlot class and displays stock market data in an open high low close format common in financial technical analysis Every item of the plot is a group of two horizontal lines representing High and Low values which are connected with a vertical line and a box representing the Open and Close values If the Open value is greater than the Close value for a particular candlestick the box is filled otherwise it is unfilled The number of groups must be four The data in the dataset is organized in the following manner The Y 0 values of the group dataset represent the values for Open the Y 1 values for High the Y 2 values for Low and the Y 3 values for Close When used with a 2 2 D dataset the position of the each candlestick symbol with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the
472. ue of the scale You can use the auto scale routine and then override the minimum and or maximum values for the logarithmic scale The default LogAxis constructor will pick up on the minimum of the coordinate system and use that as the axis tick mark origin Or you can leave the coordinate system unchanged and change the starting point of the axis tick marks FAQs 477 using the axis SetAxisTickOrigin method The example below is derived from the Logarithmic example code GroupDataset Datasetl new GroupDataset First xl yl CartesianCoordinates pTransforml new CartesianCoordinates ChartObj LOG SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pTransforml SetScaleStartX 20 Force start of scale at 20 AutoScale will always choose a power of 10 decade LogAxis xAxis new LogAxis pTransforml ChartObj X AXIS xAxis SetAxisTickOrigin 20 chartVu AddChartObject xAxis Visual Basic Create the ChartView object to place graph objects in Dim Datasetl As GroupDataset New GroupDataset First xl yl Dim pTransforml As CartesianCoordinates _ New CartesianCoordinates ChartObj LOG SCALE ChartObj LINEAR SCALE pTransforml AutoScale Datasetl ChartObj AUTOAXES FAR ChartObj AUTOAXES FAR pIransforml SetScaleStartX 20 Force start of scale at 20 AutoScale will always choose a power of 10 decade Dim xAxis As LogAxis New LogAxis pTransforml Ch
473. uinn Curtis Inc by mail at Quinn Curtis Inc 18 Hearthstone Dr Medfield MA 02052 USA or by telephone at 508 359 6639 or by electronic mail at support Quinn Curtis com iv Table of Contents Table of Contents Contact Infortriatlohi oen tr te ee hides ha ie cate ea ee ee i s Intredlde thon con Sate eme vL ee occ pty tensa Ri ee abe eee ee 1 Mosi D RAE 1 QCChart3D for Net Background nun eter ica uss oct eon Rae re ree ida 1 OCChart3D for Net Dependencles sn ai 2 System Windows Forms Namespace sus ae dee inch ed eden vetu 2 System Drawing NAMES aCe eec es ett sanded ee gt 3 System Drawing Drawing2D Namespace sess 3 System Drawing Imaging Namespace cccccsceseceeseeesceeeeceeeceaeceeeeeeeenseecsaecnseeeaes 3 System Drasy ms Color Class asus 3 System Drawino Font C 1388 oot devil ae 3 System Drawing Drawing2D GraphicsPath Class 3 System Drawing Printing Namespace nase insbes ae 3 System Globalization leese eet ta 3 System Drawing Lext Namespace ebe eere eee dna ett Meiner e 3 System ION amespare anne ae 3 System Collections Namespace usse eoe sinne 3 Directory SUCU udo pes ee c dra bett uL mU RE 4 30 Day tial Version uoti e es tato denegat ea einen 8 Developer Version aei tee i eben p ise tela i oce delicto aed oui e PAD Na 8 Chapter Summary enlarge 9 Class Architecture of the QCChart3D for Net Class Library seesessseeseesesseesseses 11 Major Design Considerations ac ni
474. ulti line plot MultiRibbonPlot thePlotl new MultiRibbonPlot pTransforml Datasetl attribArray chartVu AddChartObject thePlot1 Visual Basic Define attributes for multi line plot Dim attribl As New ChartAttribute Color Blue 1 DashStyle Solid Group Plot Objects 295 Dim attribArray numGroups As ChartAttribute For i 0 To numGroups 1 attribArray i CType attribl Clone ChartAttribute Next i Define a multi line plot Dim thePlotl As New MultiRibbonPlot pTransforml Datasetl attribArray d MultiLinePlot thePlotl new MultiLinePlot pTransforml Datasetl attribArray chartVu AddChartObject thePlotl Open High Low Close Plots Class OHLCPlot GraphObj ChartPlot GroupPlot OHLCPlot The OHLCPlot class extends the GroupPlot class and displays stock market data in an open high low close format common in financial technical analysis Every item of the plot is a vertical line representing High and Low values with two small horizontal flags one left and one right extending from the vertical High Low line and representing the Open and Close values The number of groups must be four The Y 0 values of the group dataset represent the values for Open the Y 1 values for High the Y 2 values for Low and the Y 3 values for Close When used with a 2 4 D dataset the position of the each OHLC grouping with respect to the z axis is set using the attached datasets ImplicitZValue proper
475. umericAxisLabels yAxisLab4 new NumericAxisLabels yAxis4 yAxisLab4 SetTextFont theFont chartVu AddChartObject yAxisLab4 NumericAxisLabels yAxisLab5 new NumericAxisLabels yAxis5 yAxisLab5 SetTextFont theFont chartVu AddChartObject yAxisLab5 VB Dim chartVu As ChartView Me pTransforml _ New CartesianCoordinates ChartObj LINEAR SCALE ChartObj LINEAR SCALE pTransform2 _ New CartesianCoordinates ChartObj L pTransform3 New CartesianCoordinates ChartObj L pTransform4 New CartesianCoordinates ChartObj L pTransform5 New CartesianCoordinates ChartObj LINEA Dim Datasetl Dataset2 E B 8 Dim Dataset3 Dim Dataset4 Dim Dataset5 pTransforml pTransform2 pTransform3 pTransform4 pTransform5 pTransforml pTransform2 pTransform3 pTransform4 pTransform5 As New SimpleDataset First xl yl 0 5 0 0 z NEA E Dp a a D R SCA R SCA LE _ SCALE LE LE Chartobj ChartObj L Chart bj Chartobj As New SimpleDataset Second x1 y2 0 5 0 0 As New SimpleDataset Third x1 y3 0 5 0 0 As New SimpleDataset Fourth xl y4 0 5 0 0 As New SimpleDataset Fifth x1 y5 0 5 0 0 SetGraphBorderDiagonal 0 35 SetGraphBorderDiagonal 0 35 SetGraphBorderDiagonal 0 35 SetGraphBorderDiagonal 0 35 SetGraphBorderDiagonal 0 35 Dim background As 0 15 PIS Oe hoe 0 18 quiu
476. unctionality More advanced functionality is provided in the System Drawing Drawing2D System Drawing Imaging and System Drawing Text namespaces System Drawing Drawing2D Namespace The System Drawing Drawing2D namespace provide advanced 2 dimmensional and vector graphics functionality This namespace includes the gradient brushes the Matrix class used to define geometric transforms and the GraphicsPath class System Drawing Imaging Namespace The System Drawing Imaging namespace provides advanced GDI imaging functionality Basic graphics functionality is provided by the System Drawing namespace System Drawing Color Class Provides a class to define colors in terms of their individual ARGB Alpha Red Green Blue components System Drawing Font Class Defines a particular format for text including font face size and style attributes System Drawing Drawing2D GraphicsPath Class This class is used to define a series of connected lines and curves System Drawing Printing Namespace This namespace provides classes and interfaces for a general printing API System Globalization Namespace The System Globalization namespace contains classes that define culture related information including the language the country region the calendars in use the format patterns for dates currency and numbers and the sort order for strings System Drawing Text Namespace The System Drawing Text namespace provides advanced GDI typogra
477. upBarPlot class can plot the bars as a 2 D chart where the z value of the plot is fixed using the associated 36 Class Architecture StackedBarPlot v c A G Ki E Q gt gt e Q ei c iz vo E 20 datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently The depth of the 3D rectangle is set using the associated datasets ImplicitDepthValue property This class displays group data as stacked bars In a stacked bar plot each group is stacked on top of one another each group bar a cumulative sum of the related group items before it The StackedBarPlot class can plot the bars as a 2 4 D chart where the z value of the plot is fixed using the associated datasets ImplicitZValue property or as a 3D chart where the z value for every bar is set independently The depth of the 3D rectangle is set using the associated datasets ImplicitDepthValue property 40 GU Age Group The height and width of the bars in a Histogram plot carries informatior Histogram plots Bargraphs HistogramBars HistogramPlot This class displays group data as a histogram plots A histogram plot is a collection of rectangular objects with independent widths and heights specified using the values of the associated group dataset The histogram bars share a common base value The HistogramPlot class can plot the bars as a 2 D chart where the z value of the plot is fixed Class Ar
478. use formatted labels to label the axis tick marks They are also useful for chart annotations Position the objects using any of the coordinate systems Rotate and justify the text vertically and horizontally ChartLabel contructors Visual Basic Overloads Public Sub New _ ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal initialvaluel As Double _ ByVal x As Double _ ByVal y As Double _ ByVal npostype As Integer _ ByVal nnumformat As Integer _ ByVal ndecimal As Integer _ Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal initialvaluel As Double _ ByVal x As Double _ ByVal y As Double _ ByVal npostype As Integer _ ByVal nnumformat As Integer ByVal ndecimal As Integer ByVal xjust As Integer ByVal yjust As Integer _ ByVal rotation As Double Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal initialvaluel As Double ByVal x As Double ByVal y As Double ByVal z As Double _ ByVal npostype As Integer _ ByVal nnumformat As Integer ByVal ndecimal As Integer ByVal xjust As Integer ByVal yjust As Integer _ ByVal rotation As Double Overloads Public Sub New ByVal transform As PhysicalCoordinates ByVal tfont As Font _ ByVal initialvaluel As Double ByVal x As Double ByVal y As Double ByVal z As Double _ ByVal npostype As
479. ute Color Green 0 DashStyle Solid Color Green SimpleBarPlot thePlotl new SimpleBarPlot pTransforml Datasetl ChartCalendar GetCalendarWidthValue ChartObj MONTH 10 0 0 attribl ChartObj JUSTIFY CENTER chartVu AddChartObject theP1lot1 234 Simple Plot Objects Define plot 2 ChartAttribute attrib2 new ChartAttribute Color Crimson 0 DashStyle Solid Color Crimson SimpleBarPlot thePlot2 new SimpleBarPlot pTransforml Dataset2 ChartCalendar GetCalendarWidthValue ChartObj MONTH 10 0 0 attrib2 ChartObj JUSTIFY CENTER thePlot2 BarShapeOption ChartObj CYLINDER3D chartVu AddChartObject thePlot2 Define plot 3 ChartAttribute attrib3 new ChartAttribute Color Black 0 DashStyle Solid Color DodgerBlue SimpleBarPlot thePlot3 new SimpleBarPlot pTransforml Dataset3 ChartCalendar GetCalendarWidthValue ChartObj MONTH 10 0 0 attrib3 ChartObj JUSTIFY CENTER thePlot3 BarShapeOption ChartObj CONE3D chartVu AddChartObject thePlot3 Visual Basic Create datasets with different implicit z values but the same depth Dim bardepth As Double 0 1 Dim z1 As Double 0 7 Dim z2 As Double 0 45 Dim z3 As Double 0 2 Dim Datasetl As New TimeSimpleDataset Sales 1 xl yl zl bardepth Dim Dataset2 As New TimeSimpleDataset Sales 2 xl y2 z2 bardepth Dim Dataset3 As New TimeSimpleDataset Sales 3 xl y3 z3 bardepth An array of the datasets Dim d
480. values are 0 1 No minor tick mark labels Place a label at tick mark 0 in each decade Place a label at minor tick marks 1 3 and 5 in each decade Place a label at minor tick marks 0 1 2 3 and 5 in each decade Place a label at minor tick marks 0 1 2 3 4 and 5 in each decade Place a label at minor tick marks 0 1 2 3 4 5 and 6 in each decade Place a label at minor tick marks 0 1 2 3 4 5 6 and 7 in each decade Place a label at minor tick marks 0 1 2 3 4 5 6 7 and 8 in each decade Place a label at minor tick marks 0 1 2 3 4 5 6 7 8 and 9 in each decade minorticklength The length of minor tick marks in Net device coordinates 180 Axes majorticklength The length of major tick marks in Net device coordinates ticdir The direction of the tick marks Use one of the tick mark direction constants AXIS MIN AXIS CENTER or AXIS MAX The SetLineWidth SetLineStyle and SetColor methods are used to customize the drawing properties of the lines used to draw the axis line and tick marks Simple log axis example C double xMin 0 double xMax 1000 double yMin 0 2 double yMax 2000 CartesianCoordinates logYScale new CartesianCoordinates ChartObj LINEAR SCALE ChartObj LOG SCALE logYScale SetCoordinateBounds xMin yMin xMax yMax Create a linear x axis and a logarithmic y axis LinearAxis xAxis new LinearAxis logYScale ChartObj X AXIS LogAxis yAxis
481. values of a dataset The length of the z array must match the length of the x array depthvalue Sets the ImplicitDepthValue for the dataset The default value is 0 1 The number of data points is the value of x Length property The x and y arrays must be the same length and every element must be initialized to a valid value All values in the arrays are plotted If the data is outside of the current chart scale the values will be clipped Chart Datasets 79 The next constructor creates a time dataset using the x and y values stored in a file that uses the CSV Comma Separated Value format There are two ways to organize the numeric values in the data file If you use the COLUMN MAJOR format the first column represents the time values and the second column the y values If you use the ROW MAJOR format the first row represents the time values and the second row the y values Use the CSV SetOrientation method to initialize the csv argument for the proper data orientation Visual Basic Overloads Public Sub New _ ByVal csv As CSV _ ByVal filename As String _ ByVal rowskip As Integer _ ByVal columnskip As Integer C4 public TimeSimpleDataset3D CSV csv string filename int rowskip int columnskip csv An instance of a CSV object filename The name of the file rowskip Skip this many rows before starting the read operation columnskip For each row of data skip this many columns before starting this
482. vide a key for interpreting the various plot objects in a graph It organizes a collection of legend items one for each plot objects in the graph and displays them in a rectangular frame Legend LegendItem BubblePlotLegendItem StandardLegend BubblePlotLegend Grid Classes Grid This class is the abstract base class for chart legends This class is the legend item class for all plot objects except for bubble plots Each legend item manages one symbol and descriptive text for that symbol The StandardLegend class uses objects of this type as legend items This class is the legend item class for bubble plots Each legend item manages a circle and descriptive text specifying the value of a bubble of this size The BubblePlotLegend class uses objects of this type as legend Items This class is the legend class for all plot objects except for bubble plots The legend item objects display in a row or column format Each legend item contains a symbol and a descriptive string The symbol normally associates the legend item to a particular plot object and the descriptive string describes what the plot object represents This class is a legend class used exclusively with bubble plots The legend item objects display as offset concentric circles with descriptive text giving the key for the value associated with a bubble of this size Grid lines are perpendicular to an axis extending the major and or minor tick marks of the axis ac
483. w ChartAttribute Color LightBlue 1 DashStyle Solid Color LightBlue attribl SetFillFlag true attribl SetLineFlag true LineGapPlot thePlotl new LineGapPlot pTransforml Datasetl attribl 288 Group Plot Objects chartVu AddChartObject thePlot1 Visual Basic Dim nNumPnts As Integer 5 Dim nNumGroups As Integer 2 Dim xValues nNumPnts 1 As ChartCalendar Dim groupBarData nNumGroups 1 nNumPnts 1 As Double theFont New Font Microsoft Sans Serif 10 FontStyle Bold xValues 0 New ChartCalendar 1998 ChartObj JANUARY 1 groupBarData 0 0 43 groupBarData 1 0 71 xValues 1 New ChartCalendar 1999 ChartObj JANUARY 1 groupBarData 0 1 40 groupBarData 1 1 81 xValues 2 New ChartCalendar 2000 ChartObj JANUARY 1 groupBarData 0 2 54 groupBarData 1 2 48 xValues 3 New ChartCalendar 2001 ChartObj JANUARY 1 groupBarData 0 3 56 groupBarData 1 3 44 xValues 4 New ChartCalendar 2002 ChartObj JANUARY 1 groupBarData 0 4 58 groupBarData 1 4 40 Dim Datasetl As New TimeGroupDataset GroupTimeData xValues groupBarData Dim pTransforml As New TimeCoordinates pTransforml AutoScale Datasetl ChartObj AUTOAXES NEAR ChartObj AUTOAXES FAR Dim attribl As New ChartAttribute Color Black 1 DashStyle Solid Color Red attribl SetFillFlag True attribl SetLineFlag False Dim thePlotl As New LineGapPlot pTransforml Datasetl attribl chartVu AddC
484. w floating bar plot Dim RecordHLAttrib As New ChartAttribute Color Red 1 DashStyle Solid Color Red Define attributes of Normal High Low floating bar plot Dim NormalHLAttrib As New ChartAttribute Color Green 1 DashStyle Solid Color Green Define attributes of Todsyas High Low floating bar plot Dim TodaysHLAttrib As New ChartAttribute Color Blue 1 DashStyle Solid Color Blue Dim attribs As ChartAttribute RecordHLAttrib NormalHLAttrib TodaysHLAttrib NormalHLAttrib RecordHLAttrib RecordHLAttrib Create floating bar plot Dim thePlotl As New FloatingStackedBar pTransforml HighsAndLows ChartCalendar GetCalendarWidthValue ChartObj DAY OF MONTH 0 75 attribs ChartObj JUSTIFY CENTER chartVu AddChartObject thePlotl Group Bar Plots Class GroupBarPlot GraphObj ChartPlot GroupPlot GroupBarPlot 276 Group Plot Objects The GroupBarPlot class extends the GroupPlot class and displays data in a group bar format Individual bars the height of which corresponds to the group values Y 0 Y 1 VDL of the dataset are displayed side by side as a group justified with respect to the X position value for each group When used with a 2 2 D dataset the position of the each bar with respect to the z axis is set using the attached datasets ImplicitZValue property The datasets ImplicitDepthValue property specifies the 3D depth of the bar When a group bar plot is attached to a 3D data
485. width The default value of the z dimension depth is 0 3 meaning that the apparent depth of the x dimension will be 30 of the apparent width of the ChartView Making the value larger will give the 3D chart more depth smaller values mean less depth The two examples below show how changes in the value can affect the appearance of a chart Production of Green Bars is Up suoni PY Bars Cylinders Cones co ce ce T N e f Ve wo cl CH a e e e e e e e oc CO a eo e e eo o e e ae N A N N N N N Bar plots can be represented using solid bars cyliners or cones Data values can be displayed for each bar Bargraphs SimpleBars chartVu SetFractionalZViewportDepth 0 8 60 Class Architecture Sales vs Cost Gap Sales 5 Si mi The Line Gap chart is useful for emphasizing the difference between two lines MiscCharts LineGap chartVu SetFractionalZViewportDepth 0 05 Class Hierarchy of QCChart3D pp ChartObj Arrow ChartCalendar CSV Dimension Point3D NearestPointData Polysurface ChartScale LinearScale LogScale TimeScale Transform3D UserCoordinates WorldCoordinates WorkingCoordinates PhysicalCoordinates CartesianCoordinates TimeCoordinates ChartDataset SimpleDataset SimpleDataset3D ContourDataset TimeSimpleDataset TimeSimpleDataset3D GroupDataset GroupDataset3D TimeGroupDataset TimeGroupDataset3D AutoScale LinearAutoScale LogAutoScale TimeAutoScale MouseListener MoveObj FindObj
486. wport that defines the limits of the physical coordinate system of the chart Its position within the graph area volume is set using one of the PhysicalCoordinates SetGraphBorder methods SetGraphBorderDiagonal SetGraphBorderFrame or SetGraphBorderInsets Typically the chart plot objects line plots bar plots scatter plots etc are clipped to the plot area volume Other chart objects axes axes labels titles etc need to reside outside of the plot area volume and these objects clip to the graph area volume The plot area volume can have a background different from that of the graph background Often a contrast between the graph area volume background and the plot area volume background produces a more visually pleasing chart Class Background GraphObj Background The Background class paints the graph area background or the plot area volume background One instance of the class can only paint one area either the graph area volume or the plot area volume If you want unique fill properties for both you need to create two instances of the class In the graph area background mode the Background class uses one of the following techniques to fill the background e solid color e simple color gradient defined using two RGB colors 158 Background Colors Textures and Gradients e user defined gradient supplied as a Net LinearGradientBrush object e user defined texture supplied as a Net TextureBrush object The background col
487. x in addition to the UserChartControD Right click on the UserChartControl2 form and view the underlying C code We placed all of the chart customization code in the InitializeChart method Until this method is called the UserChartControl2 appears as an empty shell Call this method from somewhere outside of the class to avoid problems associated debugging errors in user controls at design time system System Collections System ComponentModel System Drawing System Windows Forms System Drawing Drawing2D com quinncurtis chart3dnet namespace UserChartExamplel public class UserChartControl2 com quinncurtis chart3dnet ChartView private System ComponentModel IContainer components null public UserChartControl2 f This call is required by the Windows Form Designer InitializeComponent TODO Add any initialization after the InitializeComponent call public void InitializeChart ChartView chartVu this 430 Using QCChart3D for Net to Create Windows Applications e Goto the main form Form1 Go to the toolbox and select the UserChartControl2 from the Windows Forms list Drop it onto the main form and size it e Double click on the UserChartControl2 in the main Form1 form This will add a Form1 Load method to the Form class The chart initialization code will be invoked by this event private void UserChartControl21 Load object sender System EventArgs e UserChartControl21 Init
488. xAxis NumericAxisLabels yAxisLabels new NumericAxisLabels yAxis Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis chartVu AddChartObject xAxisLabels chartVu AddChartObject yAxisLabels Visual Basic Define the coordinate system Dim xMin As Double 5 Dim xMax As Double 15 Dim yMin As Double 0 Dim yMax As Double 105 Axis Labels 199 Dim simpleScale As CartesianCoordinates _ New CartesianCoordinates xMin yMin xMax yMax Create the x and y axes Dim xAxis As LinearAxis _ New LinearAxis simpleScale ChartObj X AXIS Dim yAxis As LinearAxis New LinearAxis simpleScale ChartObj Y AXIS Dim xAxisLabels As NumericAxisLabels New NumericAxisLabels xAxis Dim yAxisLabels As NumericAxisLabels New NumericAxisLabels yAxis Create the ChartView object to place graph objects in Dim chartVu As ChartView New ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis chartVu AddChartObject xAxisLabels chartVu AddChartObject yAxisLabels Should want to customize the axis you can add the following lines after the xAxisLabels object is created Custom numeric axis labels example C Font labelfont new Font Helvetica 10 FontStyle BOLD double xAxisLabelsRotat
489. xAxisLab SetTextFont theFont chartVu AddChartObject xAxisLab NumericAxisLabels yAxisLab new NumericAxisLabels yAxis yAxisLab SetTextFont theFont chartVu AddChartObject yAxisLab Font titleFont new Font SansSerif 12 FontStyle Bold AxisTitle yaxistitle new AxisTitle yAxis titleFont Test Score chartVu AddChartObject yaxistitle AxisTitle xaxistitle new AxisTitle xAxis titleFont Student 4 chartVu AddChartObject xaxistitle Visual Basic Dim xAxis As New LinearAxis pTransforml ChartObj X AXIS chartVu AddChartObject xAxis Dim yAxis As New LinearAxis pTransforml ChartObj Y AXIS chartVu AddChartObject yAxis Dim xAxisLab As New NumericAxisLabels xAxis xAxisLab SetTextFont theFont chartVu AddChartObject xAxisLab Dim yAxisLab As New NumericAxisLabels yAxis 392 Text Classes yAxisLab SetTextFont theFont chartVu AddChartObject yAxisLab Dim titleFont As New Font SansSerif 12 FontStyle Bold Dim yaxistitle As New AxisTitle yAxis titleFont Test Score chartVu AddChartObject yaxistitle Dim xaxistitle As New AxisTitle xAxis titleFont Student chartVu AddChartObject xaxistitle Numeric Time and String Label Classes Class ChartLabel ChartText ChartLabel StringLabel TimeLabel NumericLabel The ChartLabel class is the abstract base class for all of the formatted label classes The axis label classes
490. xMax new ChartCalendar 2002 ChartObj JANUARY double yMin 0 double yMax 105 TimeCoordinates simpleTimeScale simpleTimeScale new TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed TimeAxis xAxis new TimeAxis simpleTimeScale Create the linear y axis LinearAxis yAxis new LinearAxis simpleTimeScale ChartObj Y AXIS TimeAxisLabels xAxisLabels new TimeAxisLabels xAxis NumericAxisLabels yAxisLabels new NumericAxisLabels yAxis Create the ChartView object to place graph objects in ChartView chartVu new ChartView Add the x and y axes to the chartVu object chartVu AddChartObject xAxis chartVu AddChartObject yAxis chartVu AddChartObject xAxisLabels chartVu AddChartObject yAxisLabels Visual Basic Define a Time coordinate system Dim xMin As ChartCalendar New ChartCalendar 1996 ChartObj FEBRUARY 5 Dim xMax As ChartCalendar New ChartCalendar 2002 ChartObj JANUARY 5 Dim yMin As Double 0 Dim yMax As Double 105 Dim simpleTimeScale As TimeCoordinates simpleTimeScale New TimeCoordinates xMin yMin xMax yMax Create the time axis x axis is assumed Dim xAxis As TimeAxis New TimeAxis simpleTimeScale Create the linear y axis Dim yAxis As LinearAxis _ New LinearAxis simpleTimeScale ChartObj Y_AXIS Dim xAxisLabels As TimeAxisLabels New TimeAxisLabels xAxis Dim yAxisLabels As NumericAxisLabels
491. xes labels titles legends arbitrary text shapes and images Use the MoveData class to move objects derived from SimplePlot This class extends the MouseListener class providing additional methods that selectively determine what graphical objects intersect the mouse cursor This class combines the MouseListener class and Marker class Press a mouse button and the selected data cursor horizontal and or vertical line cross hairs or a small box appears at the point of the mouse cursor The data cursor tracks the mouse motion as long as the mouse button is pressed Release the button and the data cursor disappears MoveData DataToolTip CustomDataToolTip ChartZoom RotateButtonUserControl Class Architecture 53 This makes it easier to line up the mouse position with the tick marks of an axis This class selects and moves individual data points of an object derived from the SimplePlot class A data tooltip is a popup box that displays the value of a data point in a chart The data value can consist of the x value the y value x and y values x y and x values group values and open high low close values for a given point in a chart A class that permits simple contruction of custom data tooltips This class implements mouse controlled zooming for one or more simultaneous axes The user starts zooming by holding down a mouse button with the mouse cursor in the plot area volume of a graph The mouse is dragged and
492. xplorer Bargraphs aalala r1 E 2 o Solution Bargraphs 1 project pr Solution Bargraphs 1 nroiect a Bargraphs G Bargraphs Properties GJ References Gj References 20 OCChart2DNet D QOcChart3DNet System 2 System 1 System Data L System Data 2 System Drawing L System Drawing System Windows Forms 2 System Windows Forms 4D System XML CJ System XML E App ico im App ico E AssemblyInfo cs AssemblyInfo cs BostonClimate cs BarPlot3D cs DoubleBarPlot cs BostonClimate cs FloatingBars cs DoubleBarPlot cs FloatingBars2 cs FloatingBars cs Eormi cs EM j gt QCChart2D QCChart3D Next change the namespace reference at the top any source files that use the charting classes from com quinncurtis chart2dnet to com quinncurtis chart3dnet using System using System using System Collections using System Collections using System ComponentModel using System ComponentModel using System Drawing using System Drawing using System Data using System Data using System Windows Forms using System Windows Forms using System Drawing Drawing2D using System Drawing Drawing2D using com quinncurtis chart2dnet using com quinncurtis chart3dnet QCChart2D gt QCChart3D Several primitive classes that are specific to 2D charting must be changed to equivalent routines that contain z dimension information These are QCChart2D
493. y of the graphics formats supported by the System Drawing Imaging ImageFormat class The image file is placeable in a web page or an application program You can print one or more ChartView derived objects to a single page postioning each ChartView object on the printed page Printing a Chart Class ChartPrint ChartObj ChartPrint The ChartPrint class uses the Microsoft Net PrintDocument component to implement printing The class selects setups and outputs one or more charts to a printer ChartPrint constructor for printing one ChartView graph per page Visual Basic Overloads Public Sub New _ ByVal component As ChartView _ ByVal nsizemode As Integer _ C public ChartPrint ChartView component int nsizemode 414 File and Printer Rendering component Specifies the ChartView object to be printed nsizemode Specifies the printer mapping mode Use one of the mapping mode constants PRT_MAX Print the view so that paper is used maximally Text prints proportional to other objects aspect ratio is maintained PRT_EXACT Print the view at the same size as the screen at least as far as Net maintains a one to one coordespondence in the printing engine The aspect ratio of the view is maintained PRT_RECT Print the view to the specified rectangle specified using the SetPrintRect method and normalized coordinates Regardless of the print rectangle the aspect ratio of the chart is maintained Cha
494. y the axis minimum and maximum values using the actual dates and times You also need to set a 5 day workweek mode and establish a day that has a time range of 9 30 AM to 4 00 PM SetAxisIntercept and SetAxisIntercept2 methods A date time axis has an intercept value the same as a linear axis An axis resides in a 3 dimensional physical coordinate system The minimum and maximum values for the axis provide coordinate information for only one dimension x coordinates in the case of an x axis and y coordinates in the case of the y axis The missing coordinates needed to position the axis are the axis intercepts The axis intercepts specifies the y and z coordinate position for the x axis the x and z coordinate position for the y axis and the x and y coordinate position for the z axis Axes 187 There are three main constructors for TimeAxis objects The first two TimeAxis constructors assume that the axis extents match the extents of the underlying coordinate system transform The third TimeAxis constructor sets the axis extents to the specified minimum and maximum values regardless of the underlying coordinate system TimeAxis constructors Visual Basic Overloads Public Sub New _ ByVal transform As TimeCoordinates Overloads Public Sub New ByVal transform As TimeCoordinates ByVal ntickmarkbase As Integer _ Overloads Public Sub New ByVal transform As TimeCoordinates ByVal dstart As ChartCalendar ByVal dsto
495. yAxisLab5 SetTextFont theFont chartVu AddChartObject yAxisLab5 3 Can I add new axes text objects plot objects and images to a chart after it is already displayed or must I create a new chart from scratch taking into account the additional objects There are two ways to add new objects to a chart The first way is to create all objects when the chart is initially created but disable the ones that you do not want to show up when the chart is initially rendered Enable the objects when you want them to show up Use the chart objects SetChartObjEnable method to enable disable the object This is useful if you are creating an animated chart where you want the chart to sequence through a predefined series of steps The second way you add new chart objects to the ChartView using the ChartView AddChartObject method In both cases you need to call the ChartView UpdateDraw method after any changes are made The example below extracted from the DataCursorsAndMarkers CustomChartDataCursor class creates a new Marker object and NumericLabel object each time a mouse button clicked C create marker object at place it at the nearest point Marker amarker new Marker GetChartObjScale MARKER BOX nearestPoint GetX nearestPoint GetY nearestPoint Getz 10 0 PHYS POS amarker SetColor Color White chartview AddChartObject amarker rNumericLabelCntr 1 0 Add a numeric label the identifies the marker pointLabel
496. yAxisl yAxis2 new LinearAxis pTransform2 ChartObj Y AXIS yAxis2 SetAxisIntercept 18 yAxis2 SetChartObjAttributes attrib2 axis color matches line color chartVu AddChartObject yAxis2 yAxis3 new LinearAxis pTransform3 ChartObj Y_AXIS yAxis3 SetAxisIntercept 35 yAxis3 SetChartObjAttributes attrib3 axis color matches line color chartVu AddChartObject yAxis3 466 FAQs yAxis4 new LinearAxis pTransform4 ChartObj Y AXIS yAxis4 SetAxisIntercept 52 yAxis4 SetChartObjAttributes attrib4 axis color matches line color chartVu AddChartObject yAxis4 yAxis5 new LinearAxis pTransform5 ChartObj Y AXIS yAxis5 SetAxisIntercept xAxis GetAxisMax yAxis5 SetAxisTickDir ChartObj AXIS MAX yAxis5 SetChartObjAttributes attrib5 axis color matches line color chartVu AddChartObject yAxis5 NumericAxisLabels xAxisLab new NumericAxisLabels xAxis xAxisLab SetTextFont theFont chartVu AddChartObject xAxisLab NumericAxisLabels yAxisLabl new NumericAxisLabels yAxisl yAxisLabl SetTextFont theFont yAxisLabl SetAxisLabelsFormat ChartObj BUSINESSFORMAT chartVu AddChartObject yAxisLabl NumericAxisLabels yAxisLab2 new NumericAxisLabels yAxis2 yAxisLab2 SetTextFont theFont chartVu AddChartObject yAxisLab2 NumericAxisLabels yAxisLab3 new NumericAxisLabels yAxis3 yAxisLab3 SetTextFont theFont chartVu AddChartObject yAxisLab3 N

QCChart3D 3D Charting Tools for .Net - Quinn

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