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Cris Villarma (cvillarm++at++magellan.bgm.link.com)
Mon, 8 Jul 1996 17:54:58 -0500

Hi,
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.

I've written a few functions to convert to/from world
and screen coordinates, but when I position the mouse
on a known position on the map, the numbers aren't right.

If my conversion functions are right, what am I forgetting?

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