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Re: cgcolor load color to the current color table. [message #78143 is a reply to message #78137]

Tue, 25 October 2011 20:19

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Zhang Bo writes:

> when I use color = cgcolor('black'), it will load black in to color
> index 84, which mass up my following TV and colorbar. How to avoid
> this?

If you have an index, say 254, where you typically load drawing
colors, you can have cgColor load the black color there:

IDL> color = cgColor('black', 254)

It only chooses 84 as the color index in the absence of
other instructions. But, really, use decomposed color
all the time, so no colors ever have to be loaded
anywhere. :-)

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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[Message index]

		Re: cgcolor load color to the current color table. By: David Fanning on Wed, 26 October 2011 14:14
		Re: cgcolor load color to the current color table. By: Zhang Bo on Wed, 26 October 2011 13:31
		Re: cgcolor load color to the current color table. By: David Fanning on Wed, 26 October 2011 10:50
		Re: cgcolor load color to the current color table. By: Zhang Bo on Wed, 26 October 2011 10:40
		Re: cgcolor load color to the current color table. By: David Fanning on Tue, 25 October 2011 20:19
		Re: cgcolor load color to the current color table. By: David Fanning on Tue, 25 October 2011 19:16

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