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Re: What exactly does the command "strech" do to the colormap? [message #66007]

Wed, 08 April 2009 05:48

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

ICBM0926 writes:

> I am trying to use TVSCL to plot colored contour plots.

Using the word "TVSCL" in the same sentence with "color"
is your first clue that whatever it is you are doing isn't
going to work. TVSCL is just about the *last* command
you should be using if you care anything at all about
color. :-)

> What does the "stretch" command do
>
> while I use "stretch, 0, 368" or "0, 128" ? How does it change the
> colortable used below?

STRETCH is another command designed to totally confuse
you about what you are doing. Using it with TVSCL
is absolutely guaranteed to get you so confused you
will think of switching to Matlab.

Why don't you just tell us what it is you are trying
to do. I'm pretty sure there must be half a dozen
better solutions. Have you read the articles on
colored contour plots on this page:

http://www.dfanning.com/documents/tips.html

Cheers,

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

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		Re: What exactly does the command "strech" do to the colormap? By: David Fanning on Wed, 08 April 2009 05:48
		Re: What exactly does the command "strech" do to the colormap? By: ICBM0926 on Mon, 13 April 2009 01:49

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