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Using OOB Colors with Filled Contour Plots [message #79977]

Fri, 20 April 2012 11:16

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Folks,

Several months ago I introduced the notion of out-of-bounds
colors into cgColorbar. These can be set with the OOB_LOW
and OOB_HIGH keywords.

Since then several people (including me!) have been
confused over how to use the out-of-bounds colors with
filled contour plots. I had a reason to have another
go at this problem today, and I have written an article
that I hope will shed some light on this difficult
topic.

The problem really is a fundamental one of how the IDL
Contour command decides which contour "level" to color.
You have to do a few fancy dance steps to work around
this problem and get consistent results with both the
FILL and CELL_FILL keywords.

I think the article will make it easier for people to
set up these results in a more consistent way. You
can find the article here:

http://www.idlcoyote.com/cg_tips/oobcontour.php

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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		Using OOB Colors with Filled Contour Plots By: David Fanning on Fri, 20 April 2012 11:16
		Re: Using OOB Colors with Filled Contour Plots By: David Fanning on Mon, 23 April 2012 15:22
		Re: Using OOB Colors with Filled Contour Plots By: Matteo on Mon, 23 April 2012 14:18

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