| 24-bit color Postscript [message #12737] |
Sun, 06 September 1998 00:00 |
bowman
Messages: 121
Registered: September 1991
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Senior Member |
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I have an IDL application that creates 24-bit X displays consisting of a
grayscale image with points plotted on top in color using PLOTS. (Yes, it
really is preferable to do this using 24-bit color.) Color works fine on
the screen, but everything comes out grayscale in Postscript. This is
direct graphics, BTW.
I have read the Reference manual section on color Postscript, but it is
less than clear. It only addresses color images, not 24-bit color created
with things like PLOTS.
My copy of David Fanning's book is at work, so I have not been able to
check it (will do so in the morning).
Any suggestions?
The good news is:
Some years back I hacked a copy of MAP_IMAGE (and INTERPOLATE, I think, I
don't have the code at hand) so that it would handle missing data. I
hadn't used my version in a while, and I recently discovered that it will
not run under IDL 5. RSI has, however, improved MAP_IMAGE so that it
handles missing data; and it seems to do the job nicely. Anyone else who
has done similar damage to MAP_IMAGE may want to take a look at the
improved version.
Ken Bowman
--
Kenneth P. Bowman, Assoc. Prof. 409-862-4060
Department of Meteorology 409-862-4132 fax
Texas A&M University bowmanATcsrp.tamu.edu
College Station, TX 77843-3150
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