Data points to Colored Map

Question

I have a set of Latlng coordinates that I want to place on a Google Map, but instead of the usual markers, I want to create an overlay where a higher density of these latlng points will create a redder color overlay, while a lower density will give a greener overlay, everywhere in between will be a shade in between red and green. How can I achieve this?

Answer 1

You could try to build heat map with data stored in Google Fusion Tables.

Also, have a look at this question from GIS SE:

How could I turn my data into a heatmap / intensity map?