ooh Heat Maps!

Recently Ogle Earth mentioned the GeoIQ API friom Fortiusone that can generate heat maps from geospatial data. The demographic battle between NYC and San Francisco demonstrates the potential.

Heat map click to enlarge

As one zooms to street level the data is recalculated, and switching to satellite view enables a close analysis of the data. Fun, and useful not only as a GIS demonstration, but as a resource for teaching urban geography.

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