How do i create a heat/zone map in Google Maps for various demographics based on proximity to certain locations? -


what , how best way take table full of nation wide locations(say locations of company provides service operates within 20 miles of address) , create radial zone or heat map of demographics or proximities other locations. map has zones/heats of how many schools within 20 miles radius of provided address? looked google fusion tables create polygons having trouble finding way relate 1 address multiple locations(other city, looks @ city, not proximity exact location might in suburb outside said city). neat find way have location zone around highlighting serviceable radius intended markets lit up(heatmap cool). thank help!

you. can use voronoi diagram , different color s different area size.


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