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Re: cyclic colour tables? [message #32172 is a reply to message #32169]

Mon, 23 September 2002 08:13

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

M (mrmanish@bigfoot.com) writes:

> I have a contour map (of solar radiation, longitude-latitude type) and i've
> set up the routine to give a nice colour contour plot... I just wanted to
> know if it is possible to pick out small variations using a colour table -
> the maximum (solar radiation) value is around 50, but i would like to
> highlight areas where the variation is only around 2 % or less maybe....
>
> Is there a way to cycle colour tables, so that fine structure in the contour
> plot can be seen?

If you are using a 24-bit graphics card you can pretty much
do whatever you like with colors. The NOERASE keyword might
also come in handy. :-)

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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[Message index]

		Re: cyclic colour tables? By: Manish on Mon, 23 September 2002 08:49
		Re: cyclic colour tables? By: David Fanning on Mon, 23 September 2002 08:13
		Re: cyclic colour tables? By: James Kuyper on Mon, 23 September 2002 09:23
		Re: cyclic colour tables? By: David Fanning on Mon, 23 September 2002 09:02

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