Magic Maps User Guide
Contents
1. 1990 and 2000 19 Magic Maps User Manual If 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 otherwise 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 Language 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 v2. columns for city and state the state column should contain the state or province s two letter postal abbreviation If a row cannot be geocoded you will be presented with a dialog where you can manually correct the city name or else enter latitude and longitude explicitly 22 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 witha series of computed variables just 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 missi
3. data layers selection layers Smart Layers and radius layers Data layer A data layer is a map layer that has variables associated with each feature For example a county layer might have a variable for each county called population Each 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 drawn 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 fo
4. determines the color of leaders solid lines 1 4M that connect labels back to their sources The stepper determines the thickness of leaders Show Labels If checked text labels will display the value of each feature for the currently selected variable Magic Maps User Manual Show Year If checked the currently selected year will appear in the bottom left corner of the map Hide Labels That Overlap H checked text labels that would overlap with other text labels are hidden in order to increase legibility When this feature is turned on the labels of larger features are given priority Convert If checked a filter is applied to text labels before they are displayed on the map Available filters are Capitalize Uppercase and Lowercase These case conversions are applied to accented as well as non Latin characters It is possible 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 ona s sphere i e the Earth 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 Egual Area displays features of equal geographic area with equal size Lambert Conformal Conic is often used for aero
5. the Style panel 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 Crayon tool The Crayon tool can be used to define regions and compare two or more regions on the Timeline Crayon 26 Magic Maps User Manual O Key Selecting the Crayon tool will bring up the Map Legend with the rayon Text Daa Current palette of colors The current Crayon color is V Show Coloring highlighted in purple Crayon 1 isi To color a feature vvith the current Crayon color click the feature Click and drag to color multiple features at once Crayon 2 To remove coloring from features click them again with the original Crayon used or select the features and press Delete Crayon Red Crayon Blue To change the color of the current Crayon click the color vvell Click to next to its label The features colored with this Crayon will be changed as weli To change the name of any Crayon click its label type a new name and press
6. the tools or by using one of the following multi touch gestures multi touch gestures require a laptop trackpad or a standalone Magic Trackpad 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 Magic Maps User Manual 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 This concludes the overview of the Magic Maps document interface The next section discusses how to customize a map s style and projection In Section H we will discuss how to import a custom map layer Section IV provides an overview of the data pane and data concepts Section V discusses how to import export and manually enter data Section VI describes features that can be used for performing analysis Section VII describes how to give titles and labels to your maps IL Style and Projection A maps appearance can be controlled by changing the maps layer ordering Style and projection Map Layers window The Map Layers window is open by default and can be re opened at an
7. window can be opened a by clicking the Top 100 button on the right side of the toolbar or Top 100 by choosing Top 100 List from the Inspectors menu ooo Selecting rows 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 row on the Top 100 List will zoom the map to the corresponding feature 29 VII Titles and Labels Maps can be annotated with titles and labels Titles and labels A have full support for Unicode and can be styled with custom fonts and colors Edit Labels Titles Titles can be associated with the overall map or with each variable in each map layer To give a title to the overall map ensure that no variables are selected and choose the Edit Labels tool Click the region in the top center of the map view where a text cursor appears Type a title and press Enter To give a title to a particular variable select the variable and then click the region in the top center of the map view where a text cursor appears Type a title and press Enter The variable title will appear whenever that variable is selected and takes precedence over the overall title To edit a title first select the Edit Labels tool then click the region in the top center of the map view where a text cursor appears Press Enter when you are finished editing the title To change the title s font or color begin
8. Configuration vieW The configuration view appears Start year 1960 l End year 2010 1 when the configure 5 button is clicked The controls can be used to change the start and end year of the timeline as vvell 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 lal Play speed 0 75 B Year interval 10 17 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 each feature a value for the new variable double click its row in the data table and type 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 Shape
9. Enter To choose another Crayon for coloring click it on the Map Legend To increase or decrease the number of Crayon colors drag the handle at the bottom of the legend After you have colored in regions each region s Timeline aggregate values will appear on the timeline in the corresponding Crayon colors The aggregate values of the current selection still appear in black 8 7M 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 cz be opened by clicking the Legend button on the right side of the toolbar or choosing Map Legend from the Inspectors menu Legend 27 Magic Maps User Manual O Key Crayon Text Data M Color By Text North m South North South West Key Crayon Text Data Color By Quantile ve 469 557 469 557 1 1M 1 1M E 2 3M 2 3M a 3 9M izi gt 3 9M Drag for more Color by text To color features according to a text variable first select the text variable in the variable table Next select the Text tab in the Map Legend window see figure at left and check the box that says Color By Text To find and color features that share a particular value for the selected text variable select the value of i
10. Magic Maps User Manual Evan Muller Version 1 1 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 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 Template Chooser Blank Countries U S states U S counties U S metro All countries North America Canada Canada Mexico United States All U S states Alabama Alaska _ Open an Existing File gt Cancel Jk Choose J 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 includes over 150 templates primarily focusing on the United States and Canada Each template includes one or more map layers a map layer is a set of related features such as countries states or points As discussed in Section HIT additional map lay
11. ature s 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 Tips on Finding High Quality KML and Shapefiles High quality KML and Shapefiles for almost every imaginable map layer are available on the Internet Government vvebsites usually have accurate and up to date Shapefiles that can be freely downloaded Two other excellent sources of Shapefiles 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 13 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 Map layer A map layer is a set of related features such as countries states or points There are four kinds of layers
12. e 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 Crayon Add Points and Edit Labels Clicking tool s icon will select the tool by default the Select tool is selected Zoom In the middle are two icons for changing the zoom level of the map by a fixed amount 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 Current geographic position The latitude and longitude associated with the current mouse position in the map view Magic Maps User Manual 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 In addition the status bar has a resize handle on the far right which can be used to resize the window Center Map view 2010 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 inspected and manipulated using one of
13. editing the title and then choose Show Fonts from the Font menu Press Enter when you are finished changing the font and color The title s color can also be changed from the Map Style inspector window described in Section II Labels In Magic Maps each label must be associated with a feature of a map layer By default features are labeled with 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 nin point on the Earth s coordinate grid if possible so labels retain their geographic position across changes in the map projection Magic Maps User Manual 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 To change the font and color of labels either use the controls in the Map Style inspector window described in Section II or select Show Fonts from the Font menu 31
14. ell me which field is the primary key Also double check to make sure have the right target layer Primary key STATE OR REG 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 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 tvvo letter postal abbreviation or its tvvo 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 observation 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 and 2000 Population Magic Maps will create a single variable called Population with separate observations for the years
15. ers can be imported from KML and Shapefiles Map layers are the basic building blocks of all maps Similar to layers in image editing applications map layers can be 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 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 ar Untitled Cc db SZ A oS Zuil Z NI i Show Data Select Move Crayon AddPoints Edit Labels Zoom In 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 view in the center and a status bar at the bottom Top Toolbar mm S gt 20 izli show Data Select Move Crayon Add Points Edit Labels Zoom In Zoom Out Layers Projections Style Legend 100 The toolbar at the top of the documeni window is divided into several groups of icons Show Data Hide Data Tools Zoom and Inspectors 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 th
16. files 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 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 Magic Maps User Manual variable names To paste data first click the map to ensure it will receive the paste then choose Paste from the Edit 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 t
17. hat variable s American Samoa AQ value for each feature If no variable is Andorra AN selected or multiple variables are Angola AO selected the data table will display each feature s primary key instead 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 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 16 Magic Maps User Manual Lower Timeline view Below the data table is the timeline view The timeline view 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 0 timeline The currently selected year gt can be changed by using the controls or by clicking directly on the timeline Timeline When clicked the configure X button in the bottom right reveals a set of options for configuring the timeline described below These options can be hidden by clicking the button a second time Bottom left Timeline controls Standard view In the standard view the timeline gt controls display a slider bar for the currently selected year and a Play Play 1960 Year 2010 button which when clicked automatically iterates through all of the years on the slider bar as if it were a movie
18. iewing 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 To add points to the map manually first select the Add Points a tool A window will appear that describes the three options for 2 manually adding points Add Points 20 Magic Maps User Manual o Add Points Double clicking the map Yhe simplest method is There are four vvays to add points to double click the desired location for a nevv Double click the map or point 2 Enter latitude and longitude below or ETTE ya Entering geographic coordinates Latitude and Enter city and state below or j Chicago iL 0 longitude coordinates may be entered into the a w first text box Latitude and longitude should be Import a CSV with columns for latitude and longitude or city and state separated by a comma Magic Maps understands both decimal degrees and degree minutes seconds coordinate notation Entering a city and state 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 prov
19. ince name e g Kansas City MO In all cases new layer called points will be automatically created To delete a point select it with 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 way 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 view 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 When importing from a text file or pasting data directly into the map view the header line should 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 21 Magic Maps User Manual 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
20. l 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 contain data columns that describe each feature s name and other attributes When you import a KML file or a Shapefile you will be presented with a dialog like this Magic Maps User Manual 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 1D Name field NAME m 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 VVith the tvvo pop up menus at the top you can choose the data column to treat as each fe
21. map and in the timeline view Selecting multiple variables in the variable table will result in no information being displayed on the map _ Display averages in the timeline view te Display totals The column on the right displays aggregate numbers for each variable If no 15 Magic Maps User Manual 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 by selecting it and clicking the red button Middle Data table Below the variable table is the data Name Primary key table The data table displays an Afghanistan AF alphabetical list of features in the currenily selected map layer If a Albania AL j i variable is selected in the variable table Algeria AG the data table will display t
22. nautical charts Albers Equal Area Lambert Conformal Conic Mercator distorts areas but is a popular choice for world maps Mercator Winkel Tripel 8 Winkel Tripel is another popular gt choice for world maps The chosen map projection can be further customized by adjusting the map projection parameters as described below Map Projection Parameters window Magic Maps User Manual 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 Projection Parameters Central Meridian determines the line of longitude in the lt s gt 8 middle of the map projection Values are in degrees Standard Parallel 1 5 5 8 relative to Greenwich negative values are degrees west and positive values are degrees east Valid values are mi 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
23. ng 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 Apply is 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 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 New 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 within 0 6 Compute Length computes the geodesic length of each feature in the currently selected layer in kilome
24. nterest from one of the five popup buttons You can customize the colors of the text categories by clicking the color well next to each popup button Currently up to twenty text categories can be defined 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 left and select a coloring option from the pop up menu Don t Color Data will not apply coloring based on data Color By Quantile will color each feature based on its ranked position for the selected variable The quantiles are calculated across all years for which data is available the quantile figures appear in gray below each category label on the right Custom Ranges allows you to adjust the numbers that define each reach using the stepper buttons that appear above and below each category label on the right To customize the color of a numeric range click the color well 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 28 Magic Maps User Manual Top 100 List 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 7 currently selected variable The Top 100 List
25. olor This color well determines the fill color of areas ME that are not otherwise colored by a Crayon or data category This control applies only to area layers If Show Title iii Font Fill is unchecked only the feature borders are drawn Labels MEZ Font sade R Poinis color and size The color well determines the color of points that are not otherwise colored by a Crayon or data category The size stepper determines the size of points These controls apply only to point layers M Show Labels vi Shovv Year v Hide Labels That Overlap Convert Lines color and size The color well determines the color of lines that are not otherwise colored by a Crayon or data category The size stepper determines the thickness of lines These controls apply only to line layers Radii color The color well determines the color of radii in a radius layer Background color This color well determines the background color of the map it applies to all map layers Title color and font This color well determines the color of the map s title 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 a font for the map s title Labels color and font This color well determines 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 Leaders This color well
26. r example population Magic Maps User Manual Text variable 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 Show Data icon on the left side of the ooo toolbar The data pane consists of a number of components described below Show Data Top Selection bar The selection bar displays information about the currently selected map layer Countries highlighted in gray or blue in the Map 232 countries Layers 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 Layer variable Total 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
27. ral 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 the stationary finger For finer slow adjustments keep the two moving fingers close to the stationary finger O lt amp Vv O II Importing A Custom Map Layer The easiest way to start building a map is to select a map rom the template chooser described in Section J this section discusses importing a custom layer for users whose needs are not met by the Template Chooser Magic Maps supports two data formats for importing map layer 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 km
28. re 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 where opening year is less than or equal to v 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 Blast 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 25 Magic Maps User Manual An option is available for restricting the drawn circles to lie within the silhouette of another layer Draw a 100 km radius around countries centroids ES But don t color outside Cancel OK Pm p nk GE si air m 44 Seleci 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 By default selected features appear highlighted in light purple The selection color can be changed in
29. 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 ww T v 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 10 Magic Maps User Manual All gestures require three fingers one finger remains stationary while two fingers probably on STS the other hand move During a gesture all labels 7 ia will be hidden and projection parameter being x manipulated will appear as a thick black dashed get F m g pea line on the map During the gesture the other 4 HAN adjustable parameters will appear as thick dashed eas lines in gray To begin a projection gesture first place the mouse cursor on the map location that you wish to remain stationary during the gesture Then execute one of the following gestures Central meridian gesture Keep one finger stationary anywhere on the trackpad Move two fingers in concert to the left to decrease the central meridian or to the right to increase the cent
30. ters 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 in the 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 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 24 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 compa
31. y time by clicking the Layers button on the toolbar Layers The Map Layers window includes a table of map layers Map layers are drawn on the map in order starting with the bottom most layer To prevent a layer from Coordinate grid 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 the case of radius layers Opacity Y Y Y FH W Add Shadow Layers can be reordered by dragging and dropping 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 4 Style item from the Inspectors menu Style The Map Style window contains several controls Magic Maps User Manual Map Style Border color and thickness The color well determines the Borders M lli color of feature borders and the thickness stepper Fill color M shov r n determines the thickness of feature borders For point and gt line layers these controls determine the color and thickness of the rim of drawn features Fill c
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