SC2Mapster

When calculating, say, the average openness in the neighborhood of a base, it would be nice to weight the values close to the center more than the values far from the center.  So:

e^{ (r-a)^2 }

This function uses "a" as the radius you want to have the most weight and then tails off from there.  In order to weight it;
you need to figure out it's area on a disc, divide by that, then also multiply by the flat area of the disc.  Then you will have the
same amount of weight as the simple average over the disc.