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Exploding Polygons Into Random Points by Density with PostGIS | Geo Perspectives

Visualizing geo-data by density is a common need but often leaves us with yet another chloropleth map.  Sometimes there is a need to make the data more visually interesting or to capture multiple characteristics of that density in one layer.  This can be the case with race and ethnicity data where visualizing race and density simultaneously can be very powerful.  The University of Virginia’s Racial Dot Map is an excellent example of this.


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