Working with Geo Maps

About Geo Maps

A geo map overlays your data on a geographic map. You can display your data either as bubbles or as colored regions on the geo map.
To display a geo map, you must define one or more of the categories as geography data items. For more information, see Define a Geography Data Item.

Specify Properties for a Geo Map

On the Properties tab, you can specify the following options:
Name
specifies the name of the visualization.
Title
specifies the title that appears above the graph.
Note: The Title option is disabled if you select Generate graph titles.
Generate graph titles
specifies that the graph title is generated automatically based on the data items in the visualization.
Frequency
specifies whether the frequency values are displayed as the number of values (Count) or as the percentage of values (Percent).
Map style
specifies the type of data overlay for the map. Select one of the following values:
Bubbles
displays your data as a series of bubbles. Each bubble is located at the center of a geographic region or at the coordinates of a location.
Regions
displays your data as colored regions on the map.
Note: The Regions map style is not available for custom geographic roles.
Note: The Map style option is disabled if both the Bubble size role and Color role are assigned.
Show map navigation control
specifies whether the map zoom and pan controls are visible.
Color gradient
selects the gradient colors for the visualization.
You can click Edit color gradient to select the values that are used to assign the colors. See Specify a Custom Data Range.
Transparency
specifies the amount of transparency for the data overlay.

Data Roles for a Geo Map

The basic data roles for a bubble plot are:
Geography
specifies the geography data item that identifies geographic regions for your map.
Geography data items are identified by the geography icon icon.
Bubble size
for the Bubbles map style, specifies the measure that determines the bubble size.
Color
for the Regions map style, specifies the measure that determines the regions’ colors.
for the Bubbles map style, specifies a measure that determines the bubble color.

Zoom a Geo Map

You can zoom the map by using any of the following controls:
  • click the zoom bar to select your zoom level
  • press the + and – buttons on the zoom bar
  • scroll the mouse wheel to zoom in or zoom out at the location of the cursor

Pan (Scroll) a Geo Map

You can pan (scroll) the map by using any of the following controls:
  • click and drag the map
  • click the arrows on the pan control