title: Heatmap based on average weights and not on the number of data points
body: <p>I am making a heatmap with Google API v3. I'll give an example. Lets consider earthquake magnitudes. I assign weights to each point to specify their magnitude. However google  considers the density of points when you zoom out. The more points are in a place, the redder it gets. For example if two earthqueaks happened within miles of each other, one with magnitude 3 and another with magnitude 8, the first one should be green/blue and the 2nd one would be red. But once you zoom out and the two points get closer in the map, google maps considers the number of points instead of the weights and as a result, it appears read. I want it to be the average i.e. (3+8)/2=5.5...whatever color that represents. Is this possible? </p>