Plotting: Graph Layers Understanding Layers
Contents
1. 1 To size the layer frame drag a control handle When dragging the control handle an outline of the layer changes size The actual layer frame remains at its current size until you release the mouse button and click outside the layer but within the graph window 2 To proportionally size the layer frame press CTRL and then click on a control handle Release the CTRL key while still holding down the mouse button and drag the layer to the desired size Click outside the layer but within the graph window to fix the new size Specifying New Layer Dimensions in the Plot Details Dialog Box The layer dimensions are set on the Size Speed tab of the layer s Plot Details dialog box Note When you set the size of the layer you are also setting the size of the axes in the layer To set the layer and thus the axes to a specific width and height select the desired units for example inch cm or mm from the Units drop down list in the Layer Area group Then enter the desired dimensions in the Width and Height text boxes Plot Details Background Size Speed Display Miscellaneous Axis Planes m Layer Area Left fiz Width 74 Units z of Page Top E Height e4 Graphic Image Caching Vector z r Speed Mode Skip Points if needed M Worksheet data maximum points per curve 300 J Matrix data maximum points per dimension x j Y OK Cancel Apply The Layer Size Speed Tab on the Plot Det2. Layer dimensions are specified on the Size Speed tab of the Plot Details dialog box when the layer icon is Arranging Layers on the Page 266 Chapter 9 Plotting Graph Layers selected on the left side of the dialog box To open the layer s Plot Details dialog box click on the desired layer to make it active and select Format Layer The layer frame is the bounding box that defines the size and shape of the layer Type values for the width height and offsets for the layer in the associated text boxes of the Layer Area group Select the desired units used to measure the frame from the Units drop down list Manually Positioning Layers on the Page To move a layer first select the layer by clicking on an axis to generate a highlighted boundary Then click anywhere within the layer and drag to a new location within the page Click outside of the layer but within the graph window to fix the new location To facilitate positioning of the layer in the page Origin provides an axis grid You can use the axis grid to aid in manually positioning axes on the page of the active graph window To display the axis grid select View Show Axis Grid Select the layer you want to move by clicking on the axis to generate a highlighted boundary Move the axis using the grid lines as a guide To ensure that the layer s axes position on a grid line select Format Snap Axes to Grid This menu command is checked when selected To control the spacing of the axis
3. Margins IV Clip Data to Frame IV Data on Top of Axes omores fo I Grid on Top of Data Vertical fo ok Cancel ae The Layer Display Tab on the Plot Details Dialog Box The Scale Elements Group This group determines how the axes axes labels legend data plots and other objects that are attached to the Layer Frame or Layer and Scales are affected when the layer is resized Note Objects created with the Line Arrow Curved Arrow Box and Circle tools from the Tools toolbar are not affected by this group Select the Scale with Layer Frame radio button to scale the layer elements proportionally with the layer Select the Fixed Factor radio button to determine the scale factor of the layer elements This scale factor determines the size of the layer elements relative to their original size for example font size symbol size and line width The size of these elements is determined by multiplying their original size by the scale factor when the Fixed Factor radio button is selected Type the desired scale factor in the associated text box The Show Elements Group Clear the X Axes Y Axes and Z Axes check boxes to hide the X Y and Z axes in the layer Note that similar controls are provided in the Axis dialog box the Show Axis check boxes If you edit the check Controlling the Display of Elements Associated with a Layer e 246 Chapter 9 Plotting Graph Layers boxes on the Plot Details dialog box
4. Style Solid Width E x Background Size Speed Displ ok Cancel ame Controlling the Display of Elements Associated with a Layer e 250 Chapter 9 Plotting Graph Layers To Specify the Position and Color of the Back Planes Select the Auto Position check box to automatically re display the back plane when the graph is rotated such that one of the planes shifts to the front When this event occurs the Position text box values update For example a text box value displaying 100 before the rotation would display 0 after if the rotation caused the plane to shift to the front To control the position and display color of the XY YZ or ZX planes select the associated check box The Position text box value controls the position of the respective plane from the bottom of its orthogonal axis as a percentage of the axis s length Select the plane color from the associated Color drop down list To Display the Outlines of the Front Planes In addition to controlling the display of the back planes you control the display of the outline of the front planes Selecting this option gives your graph a 3D cube effect Select the Enable check box to display the front plane outlines Control the line display from the associated controls Viewing a 3D Graph with a Perspective or Orthographic Projection You can control the projection of your 3D graph from the Projection drop down list on the Miscellaneous tab of
5. displaying a top X and right Y axis The new layer is linked to the layer that was active when the button was clicked Click the Linked Inset button to add a linked inset layer displaying a bottom X and left Y axis The new layer displays as an inset in the layer that was active when the Linked Inset button was clicked The inset layer is created with a link to this layer g Click the Linked Inset with Data button to add a linked inset layer displaying a bottom X and left Y axis This button functions the same as the Linked Inset button however the inset layer displays all the data plots that are included in the parent layer The X Scale List Box with Spin Buttons Select the X axis scale for the new layer by clicking on the spin buttons until the desired scale type displays in the list box The Y Scale List Box with Spin Buttons Select the Y axis scale for the new layer by clicking on the spin buttons until the desired scale type displays in the list box The Layer Tool e 268 Chapter 9 Plotting Graph Layers The Arrange Tab of the Layer Tool Layer x Add Arrange Vertical Gap 5 Horizontal Gap 5 Columns Rows Add Hew Layers X HN Margins Top Bottom Left Right alalalal l Move Layers A 2 B 1 Swap Layers A and B Move Layer Ato B The Control Buttons onn Click the Single Column button to arrange the layers in the active graph window in a column To modify the gap between layers
6. of Linked Layer to of Page Arranging Layers on the Page e 265 Chapter 9 Plotting Graph Layers Overlaying Layers with the Layer Tool You can select and move a layer so that it completely overlays in the same position as another layer To do this open the Layer tool Tools Layer and select the Arrange tab Type the layer number that you want to move in the A text box Type the layer number that you want layer A to move to in the B text box Click the Move Layer A to B button to move layer A to the position of layer B If necessary Origin will resize layer A so that it is the same size as layer B Note The layer with the higher layer number always displays as the top layer Arranging Layers with the Layer Tool Use the Layer tool to arrange layers on the page of the active graph window Select Tools Layer to open the Layer tool Select the Arrange tab to access the layer arrangement controls Note In the following button descriptions if you have any child layers that are spatially linked to a parent layer of Linked Layer is selected from the Units drop down list on the Size Speed tab of the child layer s Plot Details dialog box then Origin maintains the parent child relationship during layer arrangement For example if your graph window contains five layers and layer 2 is a linked right Y axis of layer 1 then when you click one of the following buttons Origin will arrange the layers such that layer 2 maintains its ri
7. the Apply button to ensure that the of Linked Layer option is available on the Size Speed tab 9 Select the Size Speed tab 10 Select of Linked Layer from the Units drop down list 11 Click OK to close the dialog box Now click on the X axis in layer 1 bottom layer to expose the layer s control handles Drag on a control handle to resize the layer Click off the layer after resizing it Note that layer 2 automatically resizes to follow layer 1 El Graph olx l Y Axis Title X Axis Title 2 2 4 gt 2 ii T T T gt Gi 2 4 6 a 10 X Axis Tite Linking Layers and Axes 259 Chapter 9 Plotting Graph Layers El Graphi olx Linking the Axes Between Layers In addition to linking layers to ensure that the child layer resizes and moves with the parent layer you can also link layers to control the child layer s axis scale based on the parent layer s axis scale To do this click on the child layer s icon or the layer that you want to be the child layer in the upper left corner of the graph Select Format Layer to open the child layer s Plot Details dialog box Select the Link Axes Scales tab Ifyou haven t yet linked this layer to a parent layer then select the parent layer from the Link To drop down list Once you have linked the layers you can then set up the axes scale links on this tab Linking Layers and Axes 260 Chapter 9 Plotting Graph Layers The Layer Link Axes Scales Tab on
8. the layer s Plot Details dialog box Photographs show a perspective projection The effect of perspective is to make railroad tracks look narrower in the distance Orthographic projection is an approximation to perspective projection when the viewpoint is located at infinity relative to the objects being imaged With orthographic projection there is no distortion of the coordinates of a point In an orthographic projection the railroad tracks look parallel A Perspective Projection Controlling the Display of Elements Associated with a Layer e 251 Chapter 9 Plotting Graph Layers An Orthographic Projection a G X dyi Hiding Data in the 3D XY Plane You can specify the plotting range on the XY plane of your 3D graph without changing the axis range by editing the XY Clipping group on the Miscellaneous tab of the layer s Plot Details dialog box The Layer Miscellaneous Tab on the Plot Details Dialog Box Plot Details Background Size Speed Display Miscellaneous Axis Planes xY Cli Projection Perspective Cancel App Select the Enable check box to hide clip all data points with XY coordinates outside the range specified in the From and To text boxes Note that the axes will continue to display their current range Customize the clipping area by editing these text box values The text box values are in units of percentage of the axes scales Controlling the Display of
9. Anew merged window if the old graph windows were retained Merging Existing Graph Windows e 263 Chapter 9 Plotting Graph Layers 2 The page of the currently active graph window if the old graph windows were not retained Note Only graph windows in Project Explorer folders that are being viewed in the workspace are included in the merge operation Of these minimized or hidden graph windows are excluded from the merge operation Before merging Origin asks if you want to keep the old graph windows If you click No Origin will prompt you one final time before continuing with the merge operation Origin merges the graph windows by following the graph window order in the Window menu window list The first graph window in the list becomes layer 1 in the merged graph window The second graph window in the list becomes layer 2 in the merged graph window etc If any graph window includes multiple layers those layers are added to the merged graph following the layer order in the original graph After the merged graph is created you can exchange the position of any two layers using the Layer tool You can also exchange the layer number not position of any two layers using the following object method page reorder Layerl Layer2 ENTER where Layer and Layer2 are the layer numbers that you want to swap For more information see the LabTalk Help file fe To undo a merge operation click the Extract to Graphs button on the Gra
10. Chapter 9 Plotting Graph Layers Plotting Graph Layers Understanding Layers The layer is the fundamental building block for Origin graphs Put most simply a layer is an object consisting of one set of axes A layer s axes control how the data plot is displayed in the layer Axes have scales that determine the range of data displayed and tick marks and tick labels that give the data plot meaning Origin automatically determines how to scale and label the axes depending on the data plot but Origin also provides control over the organization and look of the graph This fact and the fact that a graph window can have multiple layers that may themselves be independent of each other or linked allows Origin to produce very complex graphs with minimum effort Note To learn more about layers review the LINE amp SCATTER PLOTS OPJ project and the INSET OPJ project located in your Origin SAMPLES GRAPHING 2D PLOTS folder Defining the Layer A layer is an Origin object that contains one set of controlling axes that may or may not be displayed In addition the layer can contain data plots or labels objects that may or may not be displayed A layer necessarily resides in a window and a graph window necessarily contains at least one layer The page of the Origin graph window can hold up to 50 layers Each layer can be moved or sized on the page Additionally each layer has a layer icon located in the upper left corner of the graph that v
11. Display tab the controls on the Axis dialog box update to reflect your changes Similarly if you edit the check boxes on the Axis dialog box the controls on the Plot Details dialog box update to reflect your changes Clear the Labels check box to hide all axis titles arrows text labels shapes and objects in the active layer To view the labels in the printout remember to select the Labels check box before printing Clear the Data check box to hide all data plots in the active layer To view the data in the printout remember to select the Data check box before printing The Data Drawing Options Group Select the Clip Data to Frame check box to hide data that extends beyond the layer frame If the Clipping Margins settings have been set select this check box to hide all data outside of the customized clipping margins Select the Data on Top of Axes check box to display data plots and symbols superimposed over the layer axes Select the Grid on Top of Data check box to display axis grid lines superimposed over data plots and symbols Edit the Clipping Margins sub group to set the clipping margins inside or outside the active layer frame The default units are in of the layer frame size Type a negative value to clip the data to a point outside the frame Type a positive value to clip the data to a point inside the frame To clip the data select the Clip Data to Frame check box Increasing the Redraw Speed in a Layer Ori
12. Elements Associated with a Layer e 252 Chapter 9 Plotting Graph Layers Displaying the Full Data Range on the XY Plane Z Axis dene J o Siete 1 ae i PE SEE T i E a 3 7 I 1 Z Axis Controlling the Display of Elements Associated with a Layer e 253 Chapter 9 Plotting Graph Layers Adding New Layers to the Graph Origin provides a number of methods to add layers to your graph window See the following topics to choose an appropriate method Note For a step by step discussion on building multiple layer graphs see Tutorial 3 Creating Multiple Layer Graphs in the Getting Started Manual Adding a New Set of Axes with a Scale Independent of the First Layer To add a set of XY axes which have a scale independent of the first set of axes a new layer must be added To add a new independent layer perform one of the following 1 Select Edit New Layer Axes Normal Bottom X Left Y 2 Open the Layer tool by selecting Tools Layer Click the Normal X and Y button on the Add tab 3 Right click on the page in the graph window outside of the layer Select New Layer Axes Normal Bottom X Left Y from the shortcut menu When you add a new layer the new layer always displays with the default layer size and placement independent of the current layer arrangement Adding a New Set of Axes with a Scale which is Linked to the First Layer Origin provides a number of menu commands for adding additional
13. ails Dialog Box To Specify the Layer Area To numerically position or resize the layer type values in the Left Top Width and Height text boxes The Left text box value determines the position of the frame relative to the left side of the page The Top Controlling the Display of Elements Associated with a Layer e 244 Chapter 9 Plotting Graph Layers text box value determines the position of the frame relative to the top of the page The Height and Width text box values determine the size of the frame Select the desired units from the Units drop down list 1 The of Page unit is useful for maintaining the same layer size relative to the page size When this unit is selected the Left Top Height and Width text box values are in percentage of the graph page height and width 2 The of Linked Layer unit is useful for creating inset graphs This unit allows you to specify the frame dimensions and offsets for a child layer in terms of the dimensions of the parent layer frame When this unit is selected the Left Top Height and Width text box values are in percentage of the height and width of the parent layer frame This unit is not available unless the current layer is linked to a parent layer Note When the unit selection is changed in the drop down list the Left Top Height and Width text box values are automatically updated so that the layer retains the same size and position To Increase the Redraw Speed of the Layer S
14. and set the page margins edit the value in the Vertical Gap text box and click again on the Single Column button Click the Single Row button to arrange the layers in the active graph window in a row To modify the gap between layers and set the page margins edit the value in the Horizontal Gap text box and click again on the Single Row button Click the Array button to arrange the layers in the active graph window into an array The dimensions of the array are determined by the values in the associated Columns and Rows text boxes To alter the array dimensions edit the values in the associated text boxes and click again on the Array button The text box values in the Margins group determine the page margins when you click the Array button If the Add New Layers check box is selected Origin adds the required layers to complete the array The size of the existing layers are reduced to accommodate the new layers in the page If the Add New Layers check box is cleared Origin configures the page for the specified number of rows and columns However no new layers are created The size of the existing layers are reduced to accommodate potential layers The Margins Group To alter the margins of the page edit the associated text boxes in this group To view the changes click again on either the Single Column Single Row or Array button The Layer Tool e 269 Chapter 9 Plotting Graph Layers The Move Layers Group To exchange the p
15. catter button E on the 2D Graphs toolbar 3 Double click on the X axis title to open the associated Text Control dialog box In the center text box type Centigrade Click OK to close the dialog box 4 Select Tools Layer to open the Layer tool Click on the Add tab Click the Linked Top X button to add a linked layer 2 displaying a top X axis Linking Layers and Axes 262 Chapter 9 Plotting Graph Layers 5 Double click on the top X axis to open the X Axis Layer 2 dialog box Select the Title amp Format tab Type Fahrenheit in the Title text box Click OK to close the dialog box 6 Press CTRL while double clicking on the layer 2 icon This action opens the Plot Details dialog box for layer 2 Select the Link Axes Scales tab Select the Custom radio button in the X Axis Link group and type the following expressions in the text boxes x Axis Link C None Straight 1 to 1 X1 9 51 32 x2 9 5 x2 32 7 Click OK to close the Plot Details dialog box f Graphi olx Fahrenheit 120 140 T j T T T 1 50 80 Centigrade Merging Existing Graph Windows Origin provides a quick method of merging several single layer graphs into one multiple layer graph After merging you can rearrange the layers as desired Merging oo Select Edit Merge All Graph Windows or click the Merge button on the Graph toolbar to copy the contents of the pages in all the graph windows and place them into either 1
16. child layer s Plot Details dialog box then Origin maintains the parent child relationship during layer arrangement For example if your graph window contains five layers and layer 2 is a linked right Y axis of layer 1 then when you select Edit Add amp Arrange Layers and specify a two column by two row arrangement Origin will arrange the layers such that layer 2 maintains its right Y position with layer 1 Exchanging Layer Positions with the Layer Tool You can exchange the physical location of any two layers on your graph using the Swap Layers A and B button on the Arrange tab of the Layer tool Tools Layer First specify the two layers whose locations you want to exchange in the A and B text boxes Then click the button to exchange their locations Note that the layers maintain their original layer numbers If one or both of the layers is spatially linked to a parent layer of Linked Layer is selected from the Units drop down list on the Size Speed tab of the Plot Details dialog box Origin will still exchange the layer locations However Origin will update the Layer Area group on the Size Speed tab of the linked layer s Plot Details dialog box with the new location If one or both of the layers is a parent layer Origin will still exchange the layer locations However for each child layer of the parent Origin will change the selection from the Units drop down list on the Size Speed tab of the child layer s Plot Details dialog box from
17. ck labels so that they align with the axes as you rotate the graph select the Rotate Labels check box Changing the Perspective In addition to rotating the 3D graph you can change the perspective angle When you change the perspective angle you change the effective distance from the observation point Type the desired perspective angle in degrees in the Perspective Angle text box You are limited to a range of 0 to 30 degrees Select either a perspective or orthographic projection from the Miscellaneous tab of the Layer s Plot Details dialog box You can also use the 3D Rotation toolbar buttons to change the perspective angle The Perspective Angle Buttons on the 3D Rotation Toolbar Increase the perspective angle by 3 degrees E Decrease the perspective angle by 3 degrees Controlling the Display of Elements Associated with a Layer e 249 Chapter 9 Plotting Graph Layers Controlling the Display of the 3D Planes in a Layer In 3D graph layers you can control the position and display of the XY YZ and ZX planes You can also display the outlines of the front planes in your 3D graphs To control the display of the 3D planes edit the Planes tab of the layer s Plot Details dialog box The Layer Planes Tab on the Plot Details Dialog Box Plot Details jay Miscellaneous Axis Planes Position Color M XY jo I Gray myz fo E Light Gray M zx fioo E Light Gray Front Corer IV Enable Color L Black
18. con will open the Layer n dialog box for the layer Origin provides the following alternative methods to set the active layer 1 Click on the X or Y axis within the layer 2 Click anywhere within the frame of the layer This procedure may be difficult if multiple layers are not separated spatially 3 Click on the plot type icon in the legend of the respective layer To ensure that a layer can be made active only by clicking on the layer icon select Format Page This menu command opens the Plot Details dialog box with the page graph icon selected on the left side of the dialog box Select the Miscellaneous tab and then select the Set Active Layer by Layer Icon Only check box Terminology Parent Layer vs Child Layer In a multiple layer graph you can link layers to ensure that if one layer is moved or resized other selected layers will move or resize to maintain the original spatial layer arrangement Additionally you can link layers to ensure that a selected layer s axis scale will always update to reflect the axis scale of the layer that it is linked to Origin uses specific terminology child parent when referring to a layer that is linked to another layer For example if layer 4 is linked to layer 2 then layer 4 is termed the child layer and layer 2 is termed the parent layer The child layer is always linked to the parent layer Thus you can customize the child layer s properties so that the child layer will always move or re
19. e layer frame select View Show Frame This menu command is checked when active Note To hide any data that extends beyond the frame select the Clip Data to Frame check box on the Display tab of the layer s Plot Details dialog box Changing the Size of a Layer The layer frame is the bounding box that defines the size and shape of the layer To change the layer dimensions either manually resize the frame or specify the desired frame dimensions on the Size Speed tab of the layer s Plot Details dialog box Additionally you can resize a layer so that it returns to the default maximum size on the page by selecting the layer and then selecting View Maximize Layer This menu command provides a fast method for maximizing the dimensions of a layer whose size has been reduced When you resize a layer by default the axis labels tick labels legend and data will scale with the layer as well as any other objects that are attached to the Layer Frame or Layer and Scales in their respective Label Control dialog box Format Label Control The scaling of these elements is controlled on the Display tab of the layer s Plot Details dialog box Controlling the Display of Elements Associated with a Layer 243 Chapter 9 Plotting Graph Layers Changing the Layer Dimensions by Manually Sizing the Frame Activate the layer frame for sizing by clicking on one of the axes in the layer Once the frame is active a sizing box with control handles displays
20. elect a buffering method from the Graphic Image Caching drop down list Graphic image caching can be used whenever a 2D or 3D graph layer needs to be redrawn without being refreshed For example when a graph window is overlaid by a worksheet window and then brought to the front again or when the graph window is resized For 2D graph layers select Raster to use caching For 3D graph layers select Raster or Vector 1 Vector metafile buffering provides Origin with a detailed description of how to draw the graph and is fully scaleable 2 Raster bitmap buffering tells Origin how many pixels of what color to draw at what position This information is based on a certain resolution and will become distorted when resized Note If you resize your graph in raster caching mode the graph may get a rough pixel appearance If this occurs select Window Refresh to restore the display If you select None Origin redraws the graph layer every time the graph window is moved brought to the front or resized In addition to graphic image caching you can use Origin s speed mode to increase the redraw speed of your graph layer With speed mode you can control the number of data points displayed in a graph layer This option is most useful when working with large data sets Select the Worksheet Data Maximum Points Per Curve check box to enable speed mode for all the data plots in the layer that are created from worksheet data Type the desired value 7 i
21. es tools to arrange the layers in your multiple layer graph Multiple layers can be arranged in a grid or they can be positioned and sized using custom measurements Using the Add amp Arrange Layers Menu Command To arrange layers on the page select Edit Add amp Arrange Layers This menu command opens the Total Number of Layers dialog box prompting you for the number of rows and columns you want to include in the page layout Select the dimensions of the layer arrangement and click OK This action opens the Spacings in of Page Dimension dialog box prompting you for spacing information If you are unsure of the desired spacing leave the settings at the default values If needed re select the Add amp Arrange Layers menu command to adjust the spacing When you select the Add amp Arrange Layers menu command Origin requires that you specify a complete layer arrangement Therefore if you specify a three by four arrangement and only have 11 layers Origin will request permission to create an additional layer If you decline Origin arranges the existing layers All layers are necessarily the same size after the arrangement process If you require layers of non uniform size or spacing size the desired layers on the Size Speed tab of the layer s Plot Details dialog box Note If you have any child layers that are spatially linked to a parent layer of Linked Layer is selected from the Units drop down list on the Size Speed tab of the
22. ght Y position with layer 1 oo 1 To arrange the layers in the active graph window in a column click the Single Column button El To modify the gap between layers edit the value in the associated text box and click again on the Single Column button 2 To arrange the layers in the active graph window in a row click the Single Row button Lt To modify the gap between layers edit the value in the associated text box and click again on the Single Row button ele 3 To arrange the layers in the active graph window into an array click the Array button El The dimensions of the array are determined by the values in the associated Columns and Rows text boxes To alter the array dimensions edit the values in the associated text boxes and click again on the Array button If the Add New Layers check box is selected Origin adds the required layers to complete the array The size of the existing layers are reduced to accommodate the new layers in the page If the Add New Layers check box is cleared Origin configures the page for the specified number of rows and columns However no new layers are created The size of the existing layers are reduced to accommodate potential layers For each of these buttons Origin uses the text box values in the Margins group to set the page margins Arranging Layers using the Layer s Plot Details Dialog Box You can arrange multiple layers in your graph by explicitly specifying the size and location for each layer
23. gin provides two methods to enhance the redraw speed of the graph layer graphic image caching and controlling the number of data points that display in the data plot speed mode Both these methods are available on the Size Speed tab of the layer s Plot Details dialog box Additionally you can select a graphic image caching method from the layer s shortcut menu In addition to enhancing the redraw speed of the layer you can enhance the redraw speed of the graph page by controlling the display of elements on the graph page and by controlling the graph page redraw criteria These additional techniques are discussed in Plotting Customizing the Page Display Controlling the 3D Axis Length Rotation and Perspective in a Layer Origin provides controls on the Axis tab of the layer s Plot Details dialog box to specify the X Y and Z axes physical length in relation to the layer frame Additionally controls are provided on this tab to manually set the rotation angle about the X Y or Z axes and to change the perspective angle Note Complementary tools for controlling the 3D rotation and perspective angle are provided on the 3D Rotation toolbar View Toolbars Controlling the Display of Elements Associated with a Layer e 247 Chapter 9 Plotting Graph Layers The Layer Axis Tab on the Plot Details Dialog Box Plot Details Background Size Speed Display Miscellaneous Axis Planes Length Rotation K X IN I Rotate Labe
24. grid select Tools Options to open the Options dialog box Select the Page tab and type or select the desired value in pixels from the Axis combination box Note Ifa layer extends outside of the page for example after manually arranging layers right click outside of the graph page and select Fit Page to Layers to resize the graph page to include all the layers This shortcut menu command is only available if a layer extends beyond the graph page The Layer Tool The Layer tool provides easy access to layer procedures including the following 1 Adding layers to the active graph window 2 Specifying the axes scale type for added layers 3 Arranging layers on the page 4 Specifying the page dimensions 5 Swapping the page location of two layers The Layer Tool e 267 Chapter 9 Plotting Graph Layers The Add Tab of the Layer Tool Layer E Add Arrange EN foo E X Scale Linear Y Scale Linear The Control Buttons Click the Normal X and Y button to add a layer with independent axes to the active graph window Click the Linked Top X button to add a linked layer displaying a top X axis The new layer is linked to the layer that was active when the button was clicked Click the Linked Right Y button to add a linked layer displaying a right Y axis The new layer is linked to the layer that was active when the button was clicked Click the Linked Top X and Right Y button E to add a linked layer
25. hysical location of any two layers on your graph specify the layers in the A and B text boxes and then click the Swap Layers A and B button To move a layer so that it displays in the same position and size as another layer specify the layers in the A and B text boxes and then click the Move Layer A to B button The Layer Tool e 270
26. isually displays whether the layer is active or not Finally a layer possesses properties and methods that are addressable from LabTalk and which can alter the layer s appearance and function Reasons for Adding Another Layer to a Graph In general new layers are added to a graph for the following reasons 1 Display the same data plot but on different axis scales for example Celsius and Fahrenheit or miles and kilometers 2 Create and arrange multiple graphs within one graph window 3 Inset a graph within a graph Defining the Active Layer When a layer is active it is receptive to program commands All operations for example plotting or adding text labels are always performed on the active layer Only one layer can be active at a time Understanding Layers 239 Chapter 9 Plotting Graph Layers Each layer has an associated layer icon in the upper left corner of the graph window The icon appears as a small gray rectangle 1 containing the layer number Layer icons tell you which layer is the active layer and allow you to set the active layer When a layer is active its layer icon depresses If the View Show Active Layer Indicator menu command is checked the active layer will also be indicated by highlighted axes This menu command is page specific meaning you must select the menu command for individual graph windows Clicking once on a layer icon will cause that layer to become active Double clicking on a layer i
27. layers in which the axes of the new layer have an association or link with the axes in the original layer Edit New Layer Axes Linked Top X Right Y Edit New Layer Axes Linked Top X Edit New Layer Axes Linked Right Y Each of these menu commands creates a new layer that is linked to the layer that was active when the menu command was selected as indicated by the depressed layer icon The new layer becomes the child of the parent active layer The new child layer then becomes the active layer For the Edit New Layer Axes Linked Top X and Edit New Layer Axes Linked Right Y menu commands the axis that is not mentioned in the menu command is not displayed It will however have its scale linked one to one with the corresponding axis in the parent layer Additionally new linked layers can be added to the graph window using the Layer tool To open the tool select Tools Layer Click on the Add tab to access the new layer buttons 1 Click the Linked Top X button to add a linked layer displaying a top X axis Adding New Layers to the Graph e 254 Chapter 9 Plotting Graph Layers 2 Click the Linked Right Y button to add a linked layer displaying a right Y axis 3 Click the Linked Top X and Right Y button E to add a linked layer displaying a top X and right Y axis Converting a Single Layer Graph into Multiple Layers To convert a single layer graph window that contains multiple data plots into a multiple la
28. ls Perspective Angle 0 30 fi 3 0 Setting the X Y and Z Axis Length You can specify the X Y and Z axis length in the associated text boxes The text boxes are in units of percent of the layer frame Thus to display the X axis at 50 of its full length type 50 in the X Length text box Rotating the Graph About One of the Axes To manually set the rotation angle about the X Y or Z axis type the desired rotation angle in the associated text box This text box value is in units of degrees independent of the Angular Unit setting on the Numeric Format tab of the Options dialog box You can also use the 3D Rotation toolbar buttons to rotate the graph about the axes The Rotation Buttons on the 3D Rotation Toolbar Select or type a rotation angle in degrees for the rotation buttons Rotate counterclockwise about the Z axis the specified rotation angle Rotate clockwise about the Z axis the specified rotation angle Tilt the top of the graph counterclockwise the specified rotation angle e le Tilt the top of the graph clockwise the specified rotation angle Controlling the Display of Elements Associated with a Layer 248 Chapter 9 Plotting Graph Layers as Rotate downward about the X axis the specified rotation angle 7 Rotate upward about the X axis the specified rotation angle Fit the graph to the layer frame Reset the rotation angles Rotating the Tick Labels with the Graph To rotate the ti
29. n the associated text box If the number of data points in a data plot exceeds n Origin displays a subset of the data plot that contains n points This subset contains evenly spaced data by the worksheet rows For 3D data plots created from a matrix or for contour data in the layer select the Matrix Data Maximum Points Per Dimension check box to enable speed mode Type the desired value n m in the X and Y text boxes If the number of data points in a data plot exceeds n or m Origin displays a subset of the data plot that contains n and m points This subset contains evenly spaced data by the matrix columns X and matrix rows Y Controlling the Display of Elements Associated with a Layer e 245 Chapter 9 Plotting Graph Layers Controlling the Display and Scaling of the Objects in a Layer Origin provides controls to turn on and off the display of the axes axes labels legend and data in the layer as well as any other objects that are attached to the Layer Frame or Layer and Scales in their respective Label Control dialog box Format Label Control These controls are provided on the Display tab of the layer s Plot Details dialog box Additionally you can control the scale of these objects with respect to the layer on this tab Plot Details Background Size Speed Display m Scale Elements gt m Show Elements M XAxes M Labels M YaAxes M Data Fixed Factor p 9 la leaves r Data Drawing Options Clipping
30. or multiple sets of axes with scales independent of the first layer perform the following steps 1 Open the Layer tool by selecting Tools Layer 2 Click on the Arrange tab 3 Select the Add New Layers check box 4 Type column and row dimensions in the Columns and Rows text boxes that are greater than the number of layers currently present in the active graph window 5 Click the Array button l amp J to add the layers to the graph Adding Layers by Merging Pages To merge pages into one graph window preserving existing links select Edit Merge All Graph Windows oo or click the Merge button on the Graph toolbar Prior to selecting this menu command make the layer that you want to be the parent layer in the new graph window the active layer Using LabTalk to Add a Layer Enter the following LabTalk command in the Script window to add a new layer to the active graph window layer n ENTER The layer is added without links to the parent layer Additionally it displays with the default layer size and placement Adding New Layers to the Graph e 257 Chapter 9 Plotting Graph Layers Deleting Layers To delete a layer first select the layer by clicking on one of the axes in the layer A highlighted boundary with control handles displays around the layer After the layer is selected press DELETE to delete the layer from the graph window Alternatively right click on the active layer s layer icon and select Delete Laye
31. ph toolbar How Merging Affects Linked Layers Any links that existed between layers before merging are preserved by the Merge All Graph Windows menu command Thus if a graph window contains two layers and layer 2 is linked to layer 1 then after the merge process this layer linking arrangement will still exist although the layer numbers may change In addition to preserving links Origin also preserves your custom axis link settings on the Link Axes Scales tab of the Plot Details dialog box If you linked layers spatially by selecting of Linked Layer from the Units drop down list on the Size Speed tab of the Plot Details dialog box then Origin also maintains the spatial relationship between the two layers This can cause an unexpected layer arrangement in the merged graph window To avoid this remove the spatial link between layers before merging by selecting of Page from the Units drop down list Converting a Multiple Layer Graph Window into Multiple Graph Windows To convert a multiple layer graph window into multiple graph windows with single layers click the Extract fe to Graphs button on the Graph toolbar All layers are extracted to individual graph windows even if a layer is linked to another layer The original graph window is not saved during the extraction process Converting a Multiple Layer Graph Window into Multiple Graph Windows 264 Chapter 9 Plotting Graph Layers Arranging Layers on the Page Origin provid
32. r from the shortcut menu Hiding Layers To reduce the screen redraw time on multiple layer graphs or to enhance the display of a particular layer in a multiple layer graph you can hide selected layers from view To hide a layer right click on the layer icon for the layer that you want to hide and select Hide Layer from the shortcut menu Alternatively to hide all but the active layer select View Show All Layers to de select the menu command The menu command is checked when all the layers are displayed Note To print the graph including all the layers turn the layer view on before printing Linking Layers and Axes In multiple layer graphs you can link layers so that a child layer will be positioned and sized in relation to a parent layer Additionally once layers are linked you can set up an axis linking relationship between the child and parent layer Note To learn more about linking layers review the LINE amp SCATTER PLOTS OPJ project and the INSET OPJ project located in your Origin SAMPLES GRAPHING 2D PLOTS folder Linking Layers to Control the Child Layer Position and Size To create a link between two layers make the layer you want to be the child layer active by clicking on its layer icon Select Format Layer to open the layer s Plot Details dialog box Select the Link Axes Scales tab and then select the layer to link to from the Link To drop down list Note Click the Apply button to ensure that the of Linked La
33. size if the parent layer moves or resizes Additionally you can customize the child layer s properties so that the child layer s axes scales will always update to reflect any changes to the parent layer s axes scales Understanding Layers 240 Chapter 9 Plotting Graph Layers Controlling the Display of Elements Associated with a Layer The layer properties are controlled in the Plot Details dialog box when the desired layer icon is selected on the left side of the dialog box Graph2 D Layer Datal A X Bly Layer2 Datal AW C0 Layer3 Datal At Dfy Laper4 Datal At Ef To open the Plot Details dialog box with the layer icon in the dialog box active perform one of the following 1 Click on the X or Y axes of the desired layer or within the frame to select the layer Select Format Layer 2 Press CTRL while double clicking on the desired layer icon 3 Double click on the desired layer icon to open the Layer n dialog box Click the Layer Properties button 4 Right click on the active layer icon and select Layer Properties from the shortcut menu Controlling the Display of Elements Associated with a Layer e 241 Chapter 9 Plotting Graph Layers Displaying a Layer Background Color and Adding a Border You can display a layer color and add a border on the Background tab of the layer s Plot Details dialog box Plot Details Background Size Speed Display Link A
34. the Axis dialog box Linking Layers and Axes 261 Chapter 9 Plotting Graph Layers Note 3 If you add a layer to your graph by selecting either Edit New Layer Axes Linked Right Y or Edit New Layer Axes Linked Top X an asterisk displays in the X1 and X2 text boxes linked right Y or in the Y1 and Y2 text boxes linked top X This indicates that the respective link is a straight one to one relationship 1 Select the None radio button to remove any link between the axes scales 2 Select the Straight 1 to 1 radio button to create a 1 to 1 link in which both axes share the scale of the parent layer 3 Select the Custom radio button to create a mathematical relationship between the axes scales Specify the relationship between the axes scales in the X1 and X2 or Y1 and Y2 text boxes These variables specify the From and To values for the axes of the child layer The expression you type in the text box provides the initial and final scale values for the child layer in terms of the parent layer x Axis Link C None Straight 1 to 1 Creating a Custom Link Between Temperature Scales The custom link option on the Link Axes Scales tab of the child layer s Plot Details dialog box is particularly useful if you want to display the same data plot on two scales such as Celsius and Fahrenheit 1 Create the following worksheet 2 Highlight the BCY column and click the S
35. the Plot Details Dialog Box Plot Details Background Size Speed Display Link Axes Scales Link to Layer aa Link Axes in Child Layer to Parent X Axis Link mY Axis Link _ i None C Straight 1 to 1 Straight 1 to 1 C Custom C Custom Linking Layers Link the current layer the layer whose icon is selected on the left side of the Plot Details dialog box to a parent layer from the Link To drop down list The parent layer must always have a lower layer number than the child layer Customizing the Axes Link You can create an X to X or Y to Y link between the axis scale in the parent and child layer The link can be a straight one to one relationship or it can be mediated by a mathematical expression This tab contains two groups of identical controls The controls in the X Axis Link group create a link between the X axis in the child layer and the X axis in the parent layer The controls in the Y Axis Link group do the same for the Y axis in the two layers Note 1 You only have to link the X or the Y axis in a layer without reference to the left versus right or top versus bottom axis This is because the axes within a single layer necessarily share the same scale as they are effectively the same axis Note 2 The axis linking relationship that you specify is limited in terms of presentation by the currently selected axis scale type the Type drop down list on the Scale tab of
36. tomatically create an inset graph Open the Layer tool by selecting Tools Layer Click on the Add tab 1 Click the Linked Inset button to add a linked inset layer displaying a bottom X and left Y axis The new layer displays as an inset in the layer that was active when the Linked Inset button was clicked The inset layer is created with a link to this layer Thus the inset layer is the child layer of its host layer or parent layer 2 Click the Linked Inset with Data button to add a linked inset layer displaying a bottom X and left Y axis This button functions the same as the Linked Inset button however the inset layer displays all the data plots that are included in the host or parent layer Note To learn more about inset graphs review the INSET OPJ project located in your Origin SAMPLES GRAPHING 2D PLOTS folder Adding New Layers to the Graph e 256 Chapter 9 Plotting Graph Layers Adding Layers During Layer Arrangement Using the Add amp Arrange Layers Menu Command To add a single set or multiple sets of axes with scales independent of the first layer perform the following steps 1 With the desired graph window active select Edit Add amp Arrange Layers This menu command opens the Total Number of Layers dialog box 2 Type a row column dimension that is greater than the number of layers currently present 3 Click OK to close the dialog box Using the Arrange Tab on the Layer Tool To add a single set
37. xes Scales Color O None Border Style None x The Layer Background Tab on the Plot Details Dialog Box By default the layer does not display a background color Rather its display is transparent Therefore any color that is applied to the graph page also displays in each of the layers that it contains To add a background color to a layer open the layer s Plot Details dialog box Select the Background tab and then select the desired color from the Color drop down list None transparent Controlling the Display of Elements Associated with a Layer 242 Chapter 9 Plotting Graph Layers The layer border is a bounding box outside of the layer frame To display the layer border select a border from the Border Style drop down list Note that the border can be moved and resized independently of the layer To do this click on the border line to select it A highlighted boundary with control handles displays Move or resize the border in the same way as other objects s Testi mv Test mv Tests mv K PR eT Z T 1 6 17 1 8 Displaying the Layer Frame Unless you offset the axes or disable their display the layer frame is exactly coincident with the X and Y axes in a 2D graph layer In a 3D graph the layer frame displays just outside of the axes To temporarily view the layer frame click on the X Y or Z axis The highlighted boundary box comprises the frame To display th
38. yer graph window click the Extract to Layers button on the Graph toolbar View Toolbars This action opens the Total Number of Layers dialog box Specify the layer arrangement in this dialog box Subsequent dialog boxes verify the creation of the layers and their spacing on the page Copying Graphs Between Pages To copy a graph including any labels or data from one graph window to another perform the following steps 1 Select the existing layer you want to copy by clicking on the axis to generate a highlighted boundary Ep 2 Select Edit Copy or click the Copy button on the Edit toolbar 3 Click in the destination graph window Hint The location in which you click becomes the upper left corner of the layer 4 Select Edit Paste or click the Paste button on the Edit toolbar Adding New Layers to the Graph e 255 Chapter 9 Plotting Graph Layers Adding an Inset Graph An inset graph is a layer which is added to an existing layer in a graph window The dimensions of the inset layer are reduced so that the host layer remains at least partially visible in the graph window 0 021 4 3 J ke 0 014 T Q 0 007 0 025 0 020 0 000 0 015 u 75 5 76 0 76 5 T 7 r T r r T r r T r r T 0 20 40 60 80 Temperature C Though inset layers can be created manually by adjusting the position and size of two or more existing layers Origin provides two buttons on the Layer tool to au
39. yer option is available on the Size Speed tab Now that you ve linked the child layer to the parent layer you can force the child layer to follow the size and position of the parent layer To do this select the Size Speed tab the child layer icon must still be selected on the left side of the Plot Details dialog box Select of Linked Layer from the Units drop down list After clicking OK to close the Plot Details dialog box whenever you make any changes to the parent layer s size or position the child layer will update to maintain the same spatial relationship when the link was established Note The parent layer must always have a lower layer number than the child layer If necessary you can change layer numbers with the following LabTalk command Deleting Layers 258 Chapter 9 Plotting Graph Layers page reorder Layerl Layer2 ENTER where Layer and Layer are layer numbers in the active graph window The specified layers exchange layer numbers Linking Layers Example 1 Click the New Graph button on the Standard toolbar 2 Select Edit Add amp Arrange Layers 3 Type 2 in the Number of Rows text box and click OK 4 Click Yes at the Attention prompt 5 Click OK in the Spacings in of Page Dimension dialog box 6 Press CTRL while double clicking on the layer 2 icon in the upper left corner of the graph window 7 Select the Link Axes Scales tab 8 Select Layer 1 from the Link To drop down list Note Click
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