Using the Thematic Map

You can create a new Thematic Map component in either the scratchpad or the Discover page.

Choosing the geocode attribute for the thematic map

From the Geo Attribute list, you can select an attribute name on which to aggregate records in the thematic map.

Choosing a geographic grain region for the thematic map

From the Geographic Grain list, you can select a region name on which to aggregate records in the thematic map. For example, this thematic map aggregates records based on State rather than Country:

Shows a thematic map with grain set to state.

Choosing a metric and metric aggregation

From the Metric list, you can select a metric name on which to aggregate records in the thematic map. Optionally, from the Metric Aggregation list, you can select a method to aggregate the value of the metric you selected in the Metric option. For example, this thematic map first aggregates records based on State and then sums the records for the state based on population:

Displays a thematic map aggregated by state and then summed based on population.

Spotlighting values on the map

The Spotlight Top Value list colors regions according to the largest value of the metric selected in the Metric option.

For example, this map shows the city in each country that has the maximum population. The grain is set to country, and the metric and metric aggregation instruct the component to calculate records based on maximum population, and lastly, the Spotlight Top Value groups the records by city. So you can see that in China, the city of Shanghai has the largest population:

Shows a thematic map with the largest city in each country.

Zooming in/out and redrawing the map

You can use Zoom In and Zoom Out features on the left edge of the component to manipulate the map.

You can multi-select regions using the Marque drawing tool or by using ctrl+click to select regions one at a time. You can also drag the thematic map to different locations on the page and then use the tools to zoom to finer views of the data.

Using custom views with a Thematic Map

The Thematic Map chart does not render correctly if it is based on a custom view. This is because two region attributes that are required to render the Thematic Map are not exposed in the base view and therefore the attributes are not copied into the custom view. To work around this issue, manually copy the following two attributes into the custom view EQL:

ARB("dimgeography_latlong_geo_regionid") AS "dimgeography_latlong_geo_regionid",
ARB("dimgeography_latlong_geo_subregionid") AS "dimgeography_latlong_geo_subregionid",