From the Fusion Tables web interface there's an option to view a heatmap, which draws on top of Google Maps. From the Fusion Tables map view there's an option to Export To KML, which allows the ...
I have database that tracks a large number of entities. Each entity has a 'coverage area' or 'catchment area' - a radius in miles from a specified UK postcode, eg Leyton office 4.3m E11 4LL ...
Using ArcGIS, QuantumGIS, Grass, and/or GVSIG What are some of the tools and processes involved in building effective heat maps? What are the plugins involved? What are the major data requirements? ...