Magic Maps User Manual
Contents
1. Data layer A data layer is a vector layer that has variables associated with each feature For example a county layer might have a variable for each county called population Fach data layer also has a primary key used for linking additional data Primary key The primary key of a data layer is a string of text used to uniquely identify each feature in the layer For example the primary key might be a country s name or a standard two letter code Selection layer A selection layer is a map layer that contains a specific subset of features in a data layer Smart Layer A Smart Layer is a map layer that contains a dynamic subset of features in a data layer The subset is determined based on custom rules defined by the user for example a Smart Layer might contain only counties with population greater than 100 000 Radius layer A radius layer is a map layer that consists of geographic circles dravvn around the features in another layer For example a radius layer might consist of 100 kilometer radii drawn around warehouse locations Variable A variable is information associated with each feature on data layer and contains either numeric or textual information There are three kinds of variables data variables text variables and computed variables Data variable A data variable is numeric information associated with each feature on a data layer for example population Magic Maps User Manual Text variab2. stacked in any order layers at the bottom of the stack are drawn first and layers at the top are drawn last Map layers can be individually styled or hidden from view Individual features in a vector layer can be labeled and colored by hand or by importing an outside data set We will get to the details of working with map layers in a minute In the meantime we ll talk about navigating the Magic Maps document interface D 6 Untitled NES 2 Show Data Select Move Paint AddPoints Edit Text Zoom In Zoom to Fit Zoom Out Layers Projections Style Legend Top 100 Magic Maps User Manual The document interface has three main components a toolbar at the top the map vievv in the center and a status bar at the bottom Top Toolbar mz k 2 gt 2 gt 209 Show Data Select Move Paint Add Points Edit Text Zoom In Zoom to Fit Zoom Out Layers Projections Style Legend Top 100 The toolbar at the top of the document window is divided into several groups Of icons Shovv Data Hide Data Tools Zoom and mspectors Show Data Hide Data The left most icon can be clicked to reveal or conceal the data pane which is discussed in Section IV The data pane can also be shown or hidden using its vertical splitter bar which appears to the left of the map view Tools To the right of the Show Data Hide Data icon are five icons representing the five tools available for manipulating a map Select Move
3. the case of radius layers Opacity ux FH Si Add Shadow Layers can be reordered by dragging and dropping To copy a layer from one document to another drag its row in the Map Layers window to the document window where you would like the copy to be made Two controls are available for adjusting how each layer is drawn Opacity Full opacity means that a layer is completely visible no opacity means it is invisible Add Shadow If checked the currently selected map layer will have a drop Shadow beneath it The shadow is applied after the opacity adjustment Map Style window To change the style of a map layer open the Map Style window by clicking the Style button on the toolbar or by choosing the Map Style item from the Inspectors menu Style Magic Maps User Manual O Map Style The Map Style window contains two tabs Map Map Features Title and Labels Features and Titles and Labels The Map Features controls are described below The Titles and Labels ayer Coordinate grid 33 controls are described in Section VII Borders H Border color and thickness Yhe color vvell Fili color M show Fill determines the color of feature borders and the a thickness stepper determines the thickness of i feature borders For point and line layers these _ Circles 4 controls determine the color and thickness of the a rim of dravvn features Lines 4 Fill colo
4. Magic Maps User Manual Draw a 100 km X radius around countries centroids gt o Cancel OK sa 7 7 ver umur v v a T T Ua m e i Radius layers can be clipped to other layers with the Clip option found in the Map Style window Select tool The Select tool can be used to select a subset of features on the currently selected map layer The variable table and the timeline will display the aggregate values for the current selection Select Selected features appear highlighted in light purple To select a single feature click it To select multiple features click while holding the Command key To draw a selection box that selects every feature touching the box click and drag Double clicking a feature will zoom the map view to that feature For maps that use the United States template you can select every feature within a state by holding the Shift key and clicking a feature within the state of interest A selection layer can be created from the current selection by choosing New Layer from Selection from the Layer menu Paint tool The Paint tool can be used to define regions and compare two or 4 more regions on the Timeline IN Paint 30 Magic Maps User Manual Key Paint Text Data v Show Paint Color Crayon 1 Crayon 2 Crayon Red Crayon Blue Click to Edit Drag for more Selecting the Paint tool will bring up the Map Legend with the current palette
5. Paint Add Points and Fdit Text Clicking tool s icon vvill select the tool by default the Select tool is selected The Move tool can be temporarily selected at any time by holding the space bar Zoom In the middle are three icons for changing the zoom level Zoom m and Zoom Out change the zoom level by a fixed amount Zoom to Fit centers and zooms the document around the currently selected map layer Zooming can also be achieved using multi touch gestures described below Inspectors On the right are five icons that when clicked bring up an inspector window The available inspectors are Layers Projections Style Legend and Top 100 A sixth inspector called Parameters is available from the Inspectors menu Bottom Status bar Brazil The status bar at the bottom of the window displays three pieces of information Magic Maps User Manual Current geographic position The latitude and longitude associated with the current mouse position in the map view Current feature The feature associated with the current mouse position in the map view Map size in pixels The width and height of the current map view in pixels m addition the status bar has a resize handle on the far right vvhich can be used to resize the window Center Map view 4 eer a m s The large map view in the middle displays the map as well as an optional year label in the bottom left The map can be
6. to compute weighted averages of the selected variables when the variable table is set to display average values Other computed variables do not take another variable as input These computed variables can be created by clicking the green button and navigating to the Nevv Computed Variable sub menu The available options are Compute Area computes the geographic area of each feature in the currently selected layer in square kilometers The computation uses a spherical approximation for the Earth and is accurate vvithin 0 676 Compute Length computes the geodesic length of each feature in the currently selected layer in kilometers The computation uses a spherical approximation for the Earth and is accurate within 0 3 Compute Distance To creates a new computed variable that contains the minimum distance in kilometers between features in the current layer and any feature in the target layer If the layer contains areas rather than points the features centroids are used for the computation The computation uses a spherical approximation for the Earth and is accurate within 0 3 Count Points creates a new computed variable that contains the number of points in the target layer for each feature in the current layer For a point counting function that sums a variable of interest use the Aggregate function in the Variable menu It is not possible to change the name of computed variables their names always reflect the
7. Chooser appears Selecting a template will create anew Magic Maps document that can be edited and saved as a Magic Maps file Magic Maps files have the file extension magicmap on your hard drive The Template Chooser can always be re opened by choosing New from Template Chooser from the File menu ANA Template Chooser Blank World Physical World Political North America U S states North America U S counties U S metro Canada Central America South America Africa Europe Central America South America Europe Asia Australia World City Lights Africa Australia Cancel Choose Open an Existing File Magic Maps User Manual Similar to word processors and spreadsheet programs Magic Maps is document oriented and can have one or more documents open at once Selecting New from the File menu will create a new document using the most recently selected template Magic Maps 1 3 includes 184 templates with emphasis on the United States and Canada Each template includes one or more map layers Map layers are either vector layers which contain a set of related features such as countries states or points or image layers which display a raster image of the earth s surface As discussed in Section III additional map layers can be imported from KML GeoTIFF and Shapefiles Map layers are the basic building blocks of all maps Similar to layers in image editing applications map layers can be
8. Magic Maps User Manual Evan Miller Version 1 3 Table of Contents I Introduction The Magic Maps Interface IL Top Toolbar Bottom Status bar Center Map view Style and Projection Map Layers window Map Style window Map Profections window Map Profection Parameters window Map projection multi touch gestures Importing a Custom Layer Importing Vector Data Importing Image Data Tips on Finding High Quality KML GeoTIFF Shapefiles IV Introduction to the Data Pane Key concepts Top Selection bar Upper Variable table Middle Data table Lower Timeline view Bottom left Timeline controls V Entering Importing and Exporting Data o M a a RP 11 11 12 14 14 15 16 17 17 18 18 19 20 20 22 Magic Maps User Manual Adding data manually Importing data Exporting data Adding poinis manually Importing poinis as a layer VI Performing Analysis Computed variables Smart Layers Radius Layers Select tool Paint tool Coloring with data Top 100 List VII Titles and Labels Titles Labels Edit Text Tool zz zz 24 24 25 27 27 28 29 30 30 31 32 34 34 34 34 I Introduction The Magic Maps Interface Magic Maps can be used for multiple purposes and it is not necessary to learn everything about all of its features in order to start using it This section provides a basic orientation to the Magic Maps interface When Magic Maps first launches a Template
9. UR information being displayed on the map I Ni or in the timeline view Display totals Layer variable Title Total The first column displays a short name or formula that identifies each variable The short names of data layers and 18 Magic Maps User Manual selection layers can be directly edited however the short names of Smart Layers and Radius layers always reflect the underlying formulas that defines the layers and cannot be directly edited The second column displays an optional title for each variable If present this title appears on the map when the variable is selected The third column displays aggregate numbers for each variable If no features are selected this column displays the aggregate figures across all features in the currently selected layer If one or more features is selected the column displays aggregate figures for the selected features There are two aggregation functions available average and sum The aggregation function can be changed using the radio buttons on the bottom right The aggregation function will apply to all variables it is not possible to view the sum of one variable and the average of another variable simultaneously As the message in gray indicates the layer variable functions as a drag and drop target for CSV files containing data for the currently selected layer A new variable can be created by clicking the green button An existing variable can be deleted
10. an be hidden by clicking the button a second time Bottom left Timeline controls Standard view Play 1960 Year 2010 Configuration vieW In the standard view the timeline controls display a slider bar for the currently selected year and a Play button which when clicked automaticaliy iterates through all of the years on the slider bar as if it were a movie 20 Magic Maps User Manual 2 End year 72010 A The configuration vievv appears when the configure X button is Play speed 0 75 Year interval 10 clicked The controls can be used to change the start and end year of the timeline as well as the number of years between ticks The play speed refers to the speed at which the Play button iterates through the years on the slider bar the number refers to slider ticks per second so larger numbers correspond to faster speeds Start year 1960 21 V Entering Importing and Exporting Data Data can be entered manually into Magic Maps or imported from another file or application If desired data can also be exported from Magic Maps for use in a spreadsheet or other program Adding data manually To create a new variable and add data to it manually click the green P button below the variable table and choose New Text Variable or New Data Variable When you do a new row will be created in the variable table and you can type to give the new variable a name To give ea
11. bservation for some map layer feature Data will also be interpreted as a time series if the columns in the imported data appear to have a year at the beginning or at the end of the variable name For example if the imported data has columns for Population1990 and Population2000 or alternatively 1990 Population 23 Magic Maps User Manual and 2000 Population Magic Maps will create a single variable called Population with separate observations for the years 1990 and 2000 li the imported data has multiple observations for each year and primary key value the observations will be added together This feature makes it possible to import and aggregate data that has been sliced by for example demographic variables even though Magic Maps does not have direct support for storing sliced data Magic Maps determines whether an imported column is a text field or a data field by attempting to parse each value in the first row of data as a number If the parsing succeeds the column is treated as a data field othervvise it is treated as a text field Magic Maps can parse numbers in decimal format currency format e g 2 000 and scientific notation e g 1 0e6 The decimal point character is determined by the computer s locale settings Exporting data The variables associated with each data layer can be exported in two formats CSV comma separated variables or DSPL Data Set Publishing Languag
12. by selecting it and clicking the red button Middle Data table Below the variable table is the data table The data table displays an ordered list of v features in the currently selected map iz Algeria layer The first column is the feature S AO American a primary key the second column is the AN klan feature s name If a variable is selected in AO Angola the variable table the third column will display the variable s value for each feature Selecting a feature in the data table will select it in the map view and selecting a feature in the map view will select it in the data table 19 Magic Maps User Manual It is possible change a feature s name or the value of one of its variables by double clicking the table Currently it is not possible to change a feature s primary key Rovvs in the data table can be ordered by any of the columns by clicking the column header Lovver Timeline vievv Timeline Below the data table is the timeline vievv The timeline vievv displays a time series of the currently selected variable for the currently selected features The currently selected year is indicated with a black dot on the timeline The currently selected year gt can be changed by using the controls or by clicking directly on the timeline When clicked the configure X button in the bottom right reveals a set of options for configuring the timeline described below These options c
13. ch feature a value for the new variable double click its row in the data table and type You can also enter data directly onto the map using the Edit Text tool The entered values apply to the currently selected year Importing data There are three ways to import data into Magic Maps From the map layer file If you imported a map layer from a KML file or Shapefile the data associated with the file will be automatically imported by Magic Maps In the case of Shapefiles data is taken from the file with extension dbf From a text file To import data from a text file either drag the file from the Finder to the variable table or choose Import Data into Layer from the File menu It is necessary to choose which map layer will receive the imported data Supported text formats include CSV comma separated variables Tab separated format Right justified fixed width format In all cases the first line of the file should contain a header with variable names If the first line contains any empty fields it is skipped and Magic Maps searches the rest of the file for a header line and imports data on any remaining lines Magic Maps User Manual Copy paste It is possible to copy paste data directly from a spreadsheet text editor or web browser The first line of the pasted data should contain the variable names To paste data first click the map to ensure it will receive the paste then choose Paste from the Ed
14. computations that they perform Smart Layers Smart Layers apply custom rules to display a subset of map features from a given layer To create a Smart Layer select a map layer and choose New Smart Layer from the Layer menu A dialog will appear with a rule editor that you can 28 Magic Maps User Manual use to define custom rules for example the following rule will select states where the population is less than 2 000 000 Contains states where Population gt is less than gt 2000000 o Cancel OK Use the button to define more than one rule for the same Smart Layer The Smart Layer rules can compare attributes to a given number or to the special string year in the latter case the rule will compare the attribute on the left to the currently selected year This feature can be used to show openings and closings for example Contains stores vvhere opening year is less than or equal to J year Cancel OK A r T T A Smart Layer can be edited later by choosing the Edit Smart Layer command from the Layer menu Radius Layers Draw Radius in the Layer menu creates a radius layer with circles of a specified radius drawn around each feature of a target layer If the target layer contains areas rather than points the radius is drawn around each area s centroid the centroid is like a center of gravity it does not necessarily lie within the feature 29
15. contain data columns that describe each feature s name and other attributes Magic Maps User Manual When you import a KML file or a Shapefile you will be presented with a dialog like this Below is a preview of the file you are about to import Please tell me which field to treat as the location s name and which to treatasa primary key for linking additional data sets Primary key FOREST ID 4 Name field NAME B Field name Sample record AREA 21449960 14142 PERIMETER 37340 04869 FOREST _ 1 FOREST ID 2 NAME CATHRINE CHEVALIER WOODS ED T DATE1 03 21 01 FD SHAPE AREA 2 14499614908e 007 SHAPE_LEN 3 73400648841e 004 4 Cancel OK 6 VVith the tvvo pop up menus at the top you can choose the data column to treat as each features name and a data column to treat as its primary key Entities with the same primary key will be merged together during the import in this way large entities can be consolidated from smaller objects in a Shapefile Primary keys are also used for importing data as described in Section V In most cases the defaults should vvork fine li you are importing a KML file and it contains multiple layers a slighily more complex dialog vvill appear asking you to perform the same task for mul ple layers Importing Image Data Magic Maps can import image data from TIFF files To be imported TIFF files must either contain information about their geographic coordinates in the file itsel
16. e CSV is appropriate for spreadsheets or other data programs DSPL can be used to upload data sets to the Google Public Data Explorer at www google com publicdata To export data from a particular layer use the Export Data sub menu in the File menu Alternatively CSV data can be exported by dragging a set of desired variables from the variable table to the desired location in the Finder Geographic data from a data layer can be exported as KML for viewing in Google Earth or other programs use the Export KML sub menu in the File menu The KML file will contain the colors visible in the current map view Finally a table of distances between points can be exported as CSV Choose Distance Table from the Export CSV sub menu for the columns and rows of the distance table you can choose to use different layers or the same layer Adding points manually 24 Magic Maps User Manual To add points to the map manually first select the Add Points tool A window will appear that describes the three options for z manualiy adding points Add Points o Add Points Double clicking the map The simplest There are four ways to add points method is to double click the desired 1 Double click the map or location for a new point 2 Enter latitude and longitude below 42 384 76 284 Entering geographic coordinates Latitude 3 Enter a city and state or ZIP code and longitude coordinates may be entered Chica
17. f in which case it is a GeoTIFF file or have an accompanying file with the extension tfw Sometimes called a world file To import a TIFF file choose Import GeoTTFF from the File menu or simply drag the TIFF file from the Finder into the document window 15 Magic Maps User Manual Tips on Finding High Quality KML GeoTIFF Shapefiles High quality KML GeoTIFF Shapefiles for almost every imaginable map layer are available on the Internet Government websites usually have accurate and up to date Shapefiles that can be freely downloaded Three excellent sources of files are Global Administrative Areas A database of country province and sub province Shapefiles available under a non commercial license http www gadm org Atlas of Historical County Boundaries A collection of U S county Shapefiles dating back to the 17th century http publications newberry org ahcb NASA Earth Observatory A collection of satellite derived Earth images available as GeoTTFF http earthobservatory nasa gov 16 IV Introduction to the Data Pane In the following sections we will discuss how to import manipulate and analyze data First it will be helpful to understand a number of key concepts in Magic Maps Key concepts Vector layer A vector layer is a set of related features such as countries states or points There are four kinds of vector layers data layers selection layers Smart Layers and radius layers
18. feature of a map layer By default features are labeled vvith their name Features can also be given labels that correspond to the values of text variables by selecting that variable in the data pane To change the position of a label click it and drag it to a new position on the map The label s position will be stored as a mii point on the Farth s coordinate grid if possible so labels retain their geographic position across changes in the map profection If a label is dragged outside the feature that it describes a leading line will automatically connect the label back to its source To change the point where the leading line is anchored inside its source feature drag the label back inside the feature so that the leading line catches at a different point The chosen position of labels will apply to all variables in the map layer Edit Text Tool To change the font and color of labels click the Edit Text button on the toolbar and use the following controls in the Title A amp Labels window that appears Edit Labels Magic Maps User Manual o Map Style Labels color and font This color well determines Map Features Title and Labels the color of text labels on the map The font button brings up the Font panel which can be used to choose the font for text labels Labels WB Font Leaders This color well determines Leaders li the color of leaders solid lines that n connect labels back
19. go IL into the first text box Latitude and longitude 4 Import a CSV with columns for any of should be separated by a comma Magic e latitude and longitude Maps understands both decimal degrees and city and state U S and Canada degree minutes seconds coordinate notation zip code U S only Entering a city and state or ZIP code A U S city and state or Canadian city and province may be entered into the second text box Use postal abbreviations for the state or province name e g Kansas City MO U S ZIP codes are also allovved In all cases new layer called points will be automatically created To delete a point select it vvith the Select tool and press the Delete key It is not possible to move points in the current version of Magic Maps you can achieve the same effect by deleting a point and re adding it Importing points as a layer A set of points can be imported into Magic Maps much the same vvay as variable data From KML files or Shapefiles Select Import KML or Import Shapefile from the File menu or drag the file from the Finder into the map vievv From CSV or plain text files Select Import Points from the File menu From spreadsheets or text editors Select the Add Points tool then paste your data directly into the map view 25 Magic Maps User Manual When importing from a text file or pasting data direcily into the map view the header line shou
20. iable _Grayon Text Dta first select the text variable in the variable table Next select M Color Text tab in the Map Legend window see figure at left m and check the box that says Color By Text H s To find and color features that share a particular value for the selected text variable select the value of interest from one of the five popup buttons North 7 South You can customize the colors of the text categories by clicking the color vvell next to each popup button Currently up to twenty text categories be defined Key Color by number To color features according to a numeric variable first select the data variable in the variable table Next select the Data tab in the Map Legend window see figure at Crayon Text Data Color By Quantile gt lt 469 557 left and select a coloring option from the pop up menu 7 Don t Color Data vvill not apply coloring based on data min Color By Quantile will color each feature based on its ranked position the selected variable guantiles are calculated 7 across all years for which data is available the guantile figures appear in gray below each category label on the right 3 9 Custom Ranges allows you to adjust the numbers that define Drag or mon 4 each reach using the stepper buttons that appear above and belovv each category label on the right To custo
21. inspected and manipulated using one Of the tools or by using one of the following multi touch gestures mul touch gestures require a laptop trackpad or a standalone Magic Trackpad Magic Maps User Manual Scroll gesture The scroll gesture drags the map inside the current viewport With the cursor positioned over the map view the scroll gesture is achieved by placing two fingers on the trackpad and moving them in the same direction Zoom gesture The zoom gesture zooms a map in or out the position of the cursor over the map view defines the center of the zoom operation To achieve a zoom gesture place two fingers on the trackpad and pinch them together to zoom out or drag them apart to zoom in Additional gestures for manipulating map projection parameters are described in Section II IL Style and Projection A maps appearance can be controlled by changing the maps layer ordering style and profection Map Layers vvindovv The Map Layers window is open by default and can be re opened at any time by clicking the Layers button on the toolbar Layers Map Layers The Map Layers window includes a table of map Coordinate grid layers Map layers are drawn on the map in order starting with the bottom most layer To prevent a layer from Physical earth being drawn uncheck its checkbox A layer s name can be changed by double clicking it unless the layer s name is derived from another map layer as in
22. it menu In all cases data is linked to the target map layer using the map layer s primary key If a header field is present with the same name as the map layer s primary key name e g FIPS code that variable is used to link data to map features If there is no header field with the same name as the map layer s primary key a dialog will appear asking you to identify the column to use for linking Below is a preview of the file you are about to import Please tell me which field is the primary key Also double check to make sure have the right target layer Primary key STATE OR REG B Target layer states Field name Sample record STATE_OR_REGION United States 1910_POPULATION 92228531 1920_POPULATION 106021568 1930_POPULATION 123202660 1940_POPULATION 132165129 1950_POPULATION 151325798 1960_POPULATION 179323175 1970_POPULATION 203211926 1980 POPULATION 226545805 1990_POPULATION 248709873 A 2000 POPULATION 281421906 v o Cancel OK D Choose the column that corresponds to the target layer s primary key and press OK For maps that use a U S template the primary key for the states layer is state which can be the state s name its two letter postal abbreviation or its two digit FIPS code Magic Maps supports both time series and non time series data Data is interpreted as a time series if a year column is present in the imported data in this case each row corresponds to an annual o
23. ld have columns for latitude and longitude These coordinates may be specified as decimal degrees or in degrees minutes seconds notation Other columns will be imported as data variables As when importing area layers from a KML file or Shapefile you will have the option to choose columns to treat as each feature s name and its primary key If latitude and longitude are not available to you it is possible to geocode U S and Canadian city and town names directly in Magic Maps In this case the header line should have columns for city and state the state column should contain the state or province s two letter postal abbreviation Magic Maps can also geocode U S ZIP codes simply include a column labeled zip code instead If a row cannot be geocoded you will be presented with a dialog where you can manually correct the city name or ZIP code or else enter latitude and longitude explicitly 26 VI Performing Analysis Magic Maps has several features for manipulating and analyzing data Computed variables Most computed variables take another variable as input These types of computed variable can be created by selecting one or more variables on the variable table and choosing a command from the Variable menu this menu can also be accessed by right clicking the variable table There is no syntax for entering in formulae however complex computations can be built up with a series of computed variables ju
24. le A text variable is textual information associated with each feature on a data layer for example the county s name Computed variable A computed variable is numeric information that is derived from one or more data variables or other computed variables For example a computed variable called population density might be a county s population divided by its area All of the data features can be accessed in the data pane which can O be opened by clicking the Shovv Data icon on the left side of the LI toolbar The data pane consists of a number of componenis described below Show Data Top Selection bar The selection bar displays information about the currently selected map layer Countries highlighted in blue in the Map Layers 232 countries window The first line of the selection bar in bold displays the layer s name The second line displays a summary of the current selection of features in this layer e g Brazil or 14 countries If no features are selected the number of features in the selected layer is displayed e g 252 countries Upper Variable table Below the selection bar is the variable table The variable table displays a list of variables associated with the currently selected layer Selecting a variable in the variable table will display its information on the map and in the timeline view Selecting multiple variables in the variable table will result in no
25. mize the color of a numeric range click the color vvell next to the appropriate range label Currently up to twenty numeric ranges can be defined When more than five ranges are used a gradient of intermediate colors is automatically calculated using the chosen colors Top 100 List 32 Magic Maps User Manual A final feature that is useful for data analysis is the Top 100 List window which displays a list of features ranked according to the ili currently selected variable The Top 100 List window can be opened by clicking the Top 100 button on the right side of the toolbar or by choosing Top 100 List from the Inspectors menu Top 100 Selecting rovvs in the Top 100 List will select the associated features on the map and selecting features on the map will select the corresponding rows on the Top 100 List Double clicking a rovv on the Top 100 List will zoom the map to the corresponding feature 33 VIL Titles and Labels Maps can be annotated vvith titles and labels Titles and labels have full support for Unicode and can be styled vvith custom fonts and colors Titles Titles can be associated vvith the overall map or vvith each variable in each map layer When a variable is selected its title takes precedence over the overall map title The map title and the appearance of titles can be edited using the Edit Text tool described belovv Labels m Magic Maps each label must be associated vvith a
26. of colors The current Paint color is highlighted in purple To color a feature vvith the current Paint color click the feature Click and drag to color multiple features at once To remove coloring from features click them again vvith the original Paint used or select the features and press Delete To change the color of the Paint bucket click the color vvell next to its label The features colored with this Paint bucket will be changed as weli To change the name of any Paint bucket click its label type a nevv name and press Enter To choose another Paint bucket for coloring click it on the Map Legend To increase or decrease the number of Paint buckets drag the handle at the bottom of the legend 8 7M After you have colored in regions each region s Timeline aggregate values will appear on the timeline in the corresponding Paint colors The aggregate values of the current selection still appear in black m this vvay it is possible to compare the time series of regions or individual features on the same timeline Coloring vvith data The Map Legend window can be used to color features on a map layer according to variables of interest The Map Legend window can be opened by clicking the Legend button on the right side of the toolbar or choosing Map Legend from the Inspectors menu Legend 31 Magic Maps User Manual O Key o Color by text To color features according to a text var
27. r This color well determines the fill color of areas that are not otherwise colored by a Paint bucket or data category This control applies only to area layers If Show Fill is unchecked only the feature borders are dravvn Background color Points color size and shape Yhe color vvell determines the color of points that are not othervvise colored by a Paint bucket or data category The size stepper determines the size of points and the popup button determines the shape which may be circles triangles squares diamonds or stars These controls apply only to point layers Lines color size and pattern The color well determines the color of lines that are not otherwise colored by a Paint bucket or data category The size stepper determines the thickness of lines and the popup button determines the pattern Solid or dashed These controls apply only to line layers Radii color The color well determines the color of radii in a radius layer Clipping layer If this box is checked and a layer is selected from the menu the currently selected layer will be clipped to the clipping layer that is only color within the clipping layer will be drawn Clipping layers can only be applied to radius layers or image layers and only polygon layers can be used as clipping layers Background color This color well determines the background color of the map it applies to all map layers 10 Magic Maps User Manual It is possible
28. ring a gesture all labels a A will be hidden and the projection parameter being gt Gg manipulated will appear as a thick black dashed 4 line on the map During the gesture the other MN adjustable parameters will appear as thick dashed To begin a projection gesture first place the mouse cursor on the map location that you vvish to remain stationary during the gesture Then execute one of the follovving gestures Central meridian gesture Keep one finger stationary anyvvhere on the trackpad Move tvvo fingers in concert to the left to decrease the central meridian or to the right to increase the central meridian For coarse fast adjustments keep the two moving fingers on the top half of the trackpad For finer slow adjustments keep the two moving fingers on the bottom half of the trackpad Standard Parallel 1 gesture Keep one finger stationary at the top of the trackpad Move two fingers in concert up to increase the standard parallel or down to decrease the standard parallel For coarse fast adjustments keep the two moving fingers away from the stationary finger For finer slow adjustments keep the two moving fingers close to the stationary finger Standard Parallel 2 gesture Keep one finger stationary at the bottom of the trackpad Move two fingers in concert up to increase the standard parallel or down to decrease the standard parallel For coarse fast adjustments keep the two moving fingers away from
29. s ea S relative to Greenwich negative values are degrees west wi and positive values are degrees east Valid values are between 180 and 180 Standard Parallels refer to lines of latitude but have different meaning based upon the map projection In general points close to or between the standard parallels will be projected with the least amount of distortion Valid values are between 90 South Pole and 90 North Pole Earth Model refers to whether the Earth should be treated as a sphere or as an ellipsoid in the projection process The ellipsoid model is more accurate but the sphere model is usually computed more quickly The following table summarizes which parameters have effect upon which projections Central Standard Standard Earth Meridian Parallel 1 Parallel 2 Model Albers Egual Area T For maps that use a U S map template with Alaska and Hawaii insets the parameter changes will not apply to the map insets Map projection multi touch gestures A map s projection parameters can also be manipulated with multi touch gestures This method offers precise control and instant visual feedback for adjusting how a map is projected Multi touch gestures require a trackpad 12 Magic Maps User Manual All gestures require three fingers one finger m 8 1182 lines in gray larma T gest v remains stationary while two fingers probably on the other hand move Du
30. st by repeated use of the Variable menu The following functions are available Percent change computes the percentage increase or decrease of a variable over the specified time interval Time difference computes the absolute increase or decrease of a variable over the specified time interval Time lag computes the value in a previous year as specified by the time interval Rolling average computes an average for each year using data in surrounding years as specified by the chosen time interval Interpolate years infers missing data by taking an appropriately weighted average of the nearest two years that are not missing data Divide will divide the selected variables by a chosen variable Scale multiplies the variable by a specified power of 10 Sum variables adds the selected variables together Aggregate is available only for point data It computes the sum of the selected variable across all points that lie within each feature of another layer For example the Aggregate function could be used to compute total store sales by state Magic Maps User Manual Appiyis available only for area data It applies the selected variable to all points in another layer contained within each area For example the Apply function could be used to display the name of the country that each point lies within In addition the Variable menu contains a Weighted By sub menu The chosen variable is used
31. the stationary finger For finer slow adjustments keep the two moving fingers close to the stationary finger 0 Importing a Custom Layer The easiest way to start building a map is to select a map from the template chooser described in Section this section discusses how to import a custom layer for users whose needs are not met by the Template Chooser Magic Maps can import geographically referenced vector data lines points and polygons as well as image data grids of pixels Importing Vector Data Magic Maps supports two data formats for importing vector map data KML and Shapefile KML Keyhole Markup Language KML is a variant of XML that is used by Google Earth KML files have the file extension kml or kmz Shapefile The Shapefile format is actually a collection files in the same folder one of these files has the extension shp Shapefile is used in the ESRI ArcGIS program and is a popular format among government agencies Shapefiles are often distributed as ZIP files which must be unzipped before importing the Shapefile into Magic Maps After Magic Maps has been installed either data format can be opened simply by double clicking the file which will have one of these icons These files can also be imported into an existing document using the Import Shapefile and Import KML commands in the File menu In addition to information about the shapes of features these files usually
32. to save the current style for future use by choosing Make Current Style Default from the File menu Map Projections window A map projection refers to the method of translating points on a s sphere i e the Farth to points on a flat surface i e your computer screen You can choose one of four map projections by Projections clicking the Projections button on the toolbar or by selecting Map Projections from the Inspectors menu Albers Equal Area displays e i features of egual geographic area with equal size Lambert Conformal Conic is often used for aeronautical charts Albers Equal Area Lambert Conformal Conic Mercator distorts areas but is a popular choice for world maps VVinkel Tripel 1s another Mercator Winkel Tripel popular choice for world maps The chosen map profection can be further customized by adjusting the map projection parameters as described below Map Projection Parameters window The Map Projection Parameters window contains controls for adjusting the mathematical parameters that define each map projection It can be opened by clicking the Configure button in the bottom right corner of the Map Projections window or by selecting Parameters from the Inspectors menu 11 Magic Maps User Manual Projection Parameters Central Meridian FG Central Meridian determines the line of longitude in the zl un ss E middle of the map projection Values are in degree
33. to their sources LAM 6 v Show Labels A va The stepper determines the thickness x Hide Labels That Overlap of leaders Convert Show Labels If checked text labels will display the Map title value of each feature for the currently selected Title Font variable Year Font Hide Labels That Overlap If checked text labels Show Year that vvould overlap vvith other text labels are hidden in order to increase legibility VVhen this Background color feature is turned on the labels of larger features are given priority Convert lt checked a filter is applied to text labels before they are displayed on the map Available filters are Title Case Uppercase and Lovvercase These case conversions are applied to accented as vvell as non Latin characters Title text color and font The map s title can be set using this text field The color vvell underneath determines the title s color This color is also applied to the year label in the bottom left of the map if visible Clicking the Font button brings up the Font panel for choosing the title s font Year color and font Yhis color vvell determines the color of the year label that appears in the bottom left corner of the map The font button brings up the Font panel which can be used to the choose the font for the year label Show Year If checked the currently selected year will appear in the bottom left corner of the map 35
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