screen position --> geographic position

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perfly++at++segolene.roazhon.inra.fr
Fri, 20 Feb 1998 10:33:22 +0100

Salut

I'm wanting to correlate the mouse position with
latitude/longitude positions on a map using Performer.
I.e., if the mouse is at screen position (10,10), I want
to know that correlates with, for example, 112W, 32.5N.

How can I do ?

Kenavo

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