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From: larryc@porter.jpl.nasa.gov (Larry Carroll)
Newsgroups: comp.windows.x
Subject: Image + Drawing software
Message-ID: <1991Apr17.020753.11600@jpl-devvax.jpl.nasa.gov>
Date: 17 Apr 91 02:07:53 GMT
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I've been given the job of writing a program that will read images of maps
into a window & then draw an overlay (which will include some text) on top of
the map.  This would allow us to input a map of Mars & draw the locations of
suggested landing sites on the map, draw paths to be taking by mobile
experiment platforms, and so on.

I've been looking at several public domain programs that do one or the other
(image display & drawing), but so far haven't found a program that does both.
Is there one?  Or a commercial package that does it?

Or is there a commercial drawing program that can read in a background image 
before doing drawings?

If none of these exist, what kind of data structures make most sense in 
doing this sort of thing.  The two images have to be tied to each other 
somehow, so that when a region of the image is selected for a zoom, both 
layers zoom together.
				larryc@puente.jpl.nasa.gov