Configure the extension
As with all Tableau extensions, the configuration menu is available in the top right corner of the extension pane.
The configuration menu is broken down into two sections: the data source and visualization options, and the styling options.
The Select Your Data Source menu allows you to specify the source worksheet and the initial data.
In the Pick Your Source Worksheet dropdown menu, choose the Sheet you want the Geographic Analytics Extension to listen to. Note that interaction is only one-way, so the extension will only respond to clicks and selections from a single dashboard object. Interactions with the Geographic Analytics Extension will not affect the selected sheet or the dashboard.
In the Pick Your Initial Data dropdown menu, choose the data you want to visualize. The selected column must be numeric to be valid.
The Configure Map Appearance menu allows you to specify which map style you want to overlay your data onto, and how you want that data do be visualized.
Choose a map style in the Pick Your Map Style dropdown menu. The options are:
- light: Mapbox Light
- dark: Mapbox Dark
- satellite_streets: Mapbox Satellite Streets
- satellite: Mapbox Satellite
- streets: Mapbox Streets
- basic: Mapbox Basic
The Geographic Analytics Extension does not support custom Mapbox styles yet.
Use the Pick your Visualization Type dropdown menu to choose how your data will be rendered. Each visualization type is described in detail in the Data flow and processing section of this documentation.
Each option has some sub-options that affect the visualization process. These include:
|Tile Borders||All options||Turn the borders of all markers on or off.|
|Circle Range||Cluster||Set the minimum and maximum size of clusters.|
|Grid Size||Square, Hex, Data Elevation||Specify how large of a grid to bin the selected data into.|
You can control how the markers in the visualization are styled using the options in the Configure Marker Appearance menu:
- Pick your Color Range: The Min Color and Max Color represent the beginning and end of your color ranges. Values will then be interpolated between both ends, bucketed into as many groups as you select with the next option.
Pick your Classification Method: The classification method and class count is the number and method for binning your data range:
Nbuckets that are equally separated.
Nbuckets broken by appropriate percentages (
Nbuckets broken down to the appropriate log scale.
Nbuckets broken down so as to minimize the average deviation from the bucket's mean. Also known as Jenks breaking.
Select your Metric: With the exception of
Voronoi, all the Geographic Analytics Extension's visualization techniques work on the basis of aggregating points together. To represent the data under each cell/band/cluster, math is applied to those points, which are then styled. All these aggregations are performed, and you are selecting which one to visualize. You have the following aggregation options:
- Extrusion Height The extension allows you to extrude the grids, Voronoi, and data elevations into 3D. The extrusion serves as a "bar chart on a map", permitting your audience to better visualize the differences in metrics. But, because the variance in data can be small, this control allows you to stack a minimum height to better visualize the inter-point variance.
- Opacity: This setting lets you control the opacity of the visualizations.