This may go under the heading of "what I did with RR today." Marginally useful.

We just received the California Department of Forestry map defining the level of fire hazard: Red for Very High, Orange for High, Yellow for Moderate.

I wanted to get the fraction of the Very High area in our county.

To be sure of my code I started with a script to get the RGB values under the mouse, using a MouseMove function.

To see this

go url "http://home.infostations.net/jhurley/RGBunderTheMouse.rev";

Unfortunately the map does not show pure colors so getting the ranges for each hazard zone is messy. But this utility is useful in exploring the range of colors.

Jim
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