Creating a Google Map Visualization
You can display your data as locations on an interactive map using the
Google Map visualization on a dashboard. For example, you
can create a Google Map visualization that displays how customer households
are clustered in different parts of the country using a density map, or
display retail locations as a series of map markers that users can click
to view additional information about stores in their area.
You can display data in a Google Map visualization in the following
ways:
Image markers
are fixed size images that mark locations on the map. You can color
image markers or replace image markers in the map with a different
image based on the value of a metric.
Bubble markers
provide two visual cues to help users analyze data displayed on a
map: size and color. You can choose to size each bubble marker in
the map based on the value of a metric, with the largest bubbles being
displayed for the largest metric values. You can have bubble markers
colored based on the value of a metric.
A density
map helps users understand patterns and trends for many geographic
locations by displaying color gradients based on the concentration
of geographic data. For example, you can display locations with a
high concentration of stores in red, and locations with a low concentration
of stores in blue, as shown in the example below.
This topic
contains details and information to use the out-of-the-box Google
Map visualization provided with the application. Before you can create
a Google Map visualization, you must enable Google Map visualizations
for Visual Insight.
Providing geographic information for the Google Map visualization
To display map markers or a density map in the Google Map visualization,
you must provide the latitude and longitude of each location in the map.
You can provide this data in the following ways:
During the
Data Import process, you can define an attribute and assign it a geo
role to identify what type of geographic information it contains.
For example, you can create an attribute called City, which contains
the names of multiple cities, then assign it the City geo role. Web
automatically creates the City attribute with the attribute forms
Latitude and Longitude, which contain the latitude and longitude
of each city. You can then use the City attribute to provide latitude
and longitude information for locations in the map. Web automatically
adds latitude and longitude information as attribute forms to data
columns with the Country, State, Zip Code, City, or Location geo roles.
You can select which attribute forms are displayed in the map; for
steps, see Selecting
which attribute forms to display in a visualization.
You can also assign
an attribute the Latitude or Longitude geo role to identify it as containing
latitude or longitude information. The attribute can then be used to provide
geographic information for locations in the map, as described in the prerequisites
below.
For background information on importing data into the application, including
steps to assign a geo role to an attribute, see About
importing data.
Prerequisites
One attribute
that contains the latitude and longitude of each location in the Latitude
and Longitude attribute forms. For example, you can provide an attribute
that has been assigned the Country, State, Zip Code, City, or Location
geo roles.
Two separate
attributes, as follows:
The
first attribute contains the latitude of each location. For example,
you can provide an attribute that has been assigned the Latitude
geo role.
The
second attribute contains the longitude of each location. For
example, you can provide an attribute that has been assigned the
Longitude geo role.
This
procedure assumes that the Google Map visualization has already
been enabled for Visual Insight.
You
must have the Edit Dashboard and Run Dashboard privileges.
To
create and add a Google Map visualization to a dashboard:
Click
the name of the dashboard to run it.
From the toolbar, click the Insert Visualization icon 
. A new blank visualization
is added to the dashboard and displayed.
From the Visualization Gallery,
click the Google Map icon.
Note: If the Visualization
Gallery is not displayed, from the View
menu, select Visualization Gallery.
If the Properties panel is not
displayed, from the View menu,
select Properties Panel. If
the Properties panel is hidden behind another panel, click the Properties icon 
to display the Properties panel.
In the Properties panel, from
the Map Style drop-down list,
select the display theme to apply to the map, such as Street
Map or Terrain Map.
From the Map
Type drop-down list, select one of the following:
To display
a map with markers, select Marker.
To display
a density map, select Density.
If you selected the marker map
type, select the type of map marker to display from the Marker
Type drop-down list, as follows:
To display
bubble markers, select Bubbles.
To display
pins, select Pins.
If you selected the density map
type, under Color Bands, select
the color theme to use to show locations on the map. For example,
to display areas with a low density of locations of interest as blue,
and areas with a high density as red, select the color theme that
changes from blue to red.
You can determine whether or not
a legend is displayed for the map. The legend shows the relationship
between the color of each marker and the metric value for that location.
Do one of the following:
To display
the legend, select the Show Legend
check box.
To hide
the legend, clear the Show Legend
check box (default).
To display the Editor panel, from
the View menu, select Editor Panel. If the Editor panel
is hidden behind another panel, click the Editor
icon 
to display the Editor panel.
If the Datasets panel is not displayed,
from the View menu, select
Datasets Panel.
From the Datasets
panel, click and drag dataset objects to the appropriate area
in the Editor panel by doing
one of the following:
To use attribute
forms to provide the locations in the map, click and drag the attribute
that contains the latitude and longitude information to the Geo Attribute area. Web automatically
detects the Latitude and Longitude attribute forms and displays their
names in the Latitude and Longitude areas. Steps to select which attribute
forms to display in the map are included in this procedure. For example,
you can display the attribute’s description form but not the latitude
and longitude forms.
To use attributes
to provide the locations in the map, perform the following steps:
Click
and drag the attribute that contains the latitude information to the
Latitude area.
Click
and drag the attribute that contains the longitude information to
the Longitude area.
Note:
You can also drag objects from the Datasets panel directly onto the
visualization.
If you selected the marker map
type, you can color the map markers based on the value of a metric.
From the Datasets panel, click
and drag the metric to the Color
By area.
You can customize the colors used
to display map markers or replace image markers with a different image
based on the value of the metric in the Color By area. To do
so, you must define a threshold on the metric used to display the
map markers. In the Color By area, right-click the metric and select
Thresholds. The Thresholds
Editor opens. Select the appropriate
options to define the formatting to apply to the map markers.
If you have chosen to display
bubble markers in the visualization, you can size the bubble markers
based on the value of a metric, with the largest bubbles being displayed
for the largest metric values. From the Datasets
panel, click and drag the metric to use to size the bubble markers
to the Size By area.
By default, when a user clicks
a location in the map, a tooltip containing additional information
about the location is displayed. You can include the values of additional
dataset objects, such as related attributes and metrics, in the tooltip.
To do this, from the Datasets
panel, click and drag the dataset objects to the Tooltip
section.
For each attribute in the Editor
panel, you can select which attribute forms are displayed in the map.
An attribute form is a descriptive category for an attribute. For
a more detailed description, including how to select what attribute
information to display in the headers, see Selecting
which attribute forms to display in a visualization.
To select the attribute forms,
in the Editor panel, right-click the attribute and point to Display Attribute Form. Select one
of the following:
To display
an attribute form in the map, select the check box next to its name.
To hide
an attribute form in the map, clear the check box next to its name.
Click the Save
icon 
to save your changes.
Related topics
Formatting
visualizations
Dashboard
Editor: Google Map: Properties
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