What ifsince the maps I have seen use color differentiation to denote
height..write a program to digitize the color information. Then write and
algorithm to look for certain rapid differentiation's. Since color is
stored
as 3 types of color (varying amounts of red, blue, green) a rapid
I think the maps on this site are in graphical format, which means at the
least we'd have to write a very sophisticated program to analyze the
graphical content to generate actual contour data, plus optical character
recognition to read the altitude information, and separate out all of the
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