except for being something i need to do in an mfc app i'm working on this
doesn't really have anything to do with mfc.... but its as bad a place to
start as any other group i watch. i need a kind of generic algorithm to
take an array of 3d points that describe a surface, then given two
coordinates of another point interpolate the third coordinate on the
surface. picture it like you have a set of random latitude, longitude and
elevation points, then want to find the elevation of any given latitude and
longitude coordinate. (over a small area, don't worry about spherical earth
and all that stuff) any ideas of libraries that do this type of job? web
resources for algorithms? etc???