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From: giguere@csg.UWaterloo.CA (Eric Giguere)
Newsgroups: comp.windows.x
Subject: Dithering with X
Message-ID: <1990Jul30.192516.5718@maytag.waterloo.edu>
Date: 30 Jul 90 19:25:16 GMT
Sender: daemon@maytag.waterloo.edu (Admin)
Organization: Computer Systems Group, U of Waterloo
Lines: 18
Disclaimer: The opinions expressed are solely the author's.

I have an interesting problem to do with colour under X.  My application
would like to use the three primary colours (RGB) and the three complementary
colours (CMY) while running under a Motif environment.  Now I've played with
the colourmaps and I've come to agree with the conclusion that altering
the standard Motif colourmap is not a good thing.  Not only does it make
other applications look strange, but it can also confuse the user by removing
all those 3D highlighting cues.

So I was thinking:  Motif does have the RGB colours around.  Why not use
dithering to simulate CMY?  Has anyone tried this approach?  Has it worked?
Did you run into problems when drawing patterned lines on top of a dithered
background?

I'd appreciate any tips/insights you could give me as I'm not sure this
is the way to go...

--
Eric Giguere                                       giguere@csg.UWaterloo.CA