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Re: Color table [message #58310 is a reply to message #8601]

Thu, 24 January 2008 05:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

WRC2008@gmail.com writes:

> Just one more fact (again, as also posted in another topic....). My
> background color changed again.

Changed again where? On the display? In a PS file?

> Although I define the blue-white-red color table just before putting !
> P.BACKGROUND = 128, checking the 128 color with the cindex tool (being
> white!!), I get a salmon color background, and by no means I can
> change it to white. I can change it to all other colors I want (black,
> blue, red,...) but no white....I am getting a bit desperate with the
> colors here, so I hope someone can help me out!!!

The question is not what the background color is just before
you set !P.Background. The question is, what is the background
color just before you draw your background? If you are using
indexed color (extremely likely from your description of things),
then colors can be changed all the time. You have to have
the right colors in the color table at the time you draw
the thing that is suppose to be in those particular colors.

Or, you can use 24-bit color and have all 16.7 million
colors available 24/7. Have you read the several hundred
articles on color management on my web page? :-)

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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[Message index]

		color table By: Ye Hong on Wed, 26 March 1997 00:00
		Re: color table By: J.D. Smith on Wed, 26 March 1997 00:00
		Re: Color table By: R.Bauer on Thu, 05 August 2004 06:41
		Re: Color table By: R.G. Stockwell on Thu, 05 August 2004 08:46
		Re: Color table By: David Fanning on Wed, 04 August 2004 21:05
		Re: Color table By: David Fanning on Mon, 21 January 2008 07:09
		Re: Color table By: WRC2008 on Thu, 24 January 2008 00:31
		Re: Color table By: WRC2008 on Mon, 21 January 2008 04:35
		Re: Color table By: WRC2008 on Mon, 21 January 2008 02:02
		Re: Color table By: David Fanning on Sun, 20 January 2008 09:53
		Re: Color table By: mmiller3 on Sun, 20 January 2008 07:58
		Re: Color table By: Vince Hradil on Sat, 19 January 2008 10:39
		Re: Color table By: WRC2008 on Sat, 19 January 2008 04:27
		Re: Color table By: David Fanning on Fri, 25 January 2008 05:23
		Re: Color table By: WRC2008 on Fri, 25 January 2008 04:47
		Re: Color table By: WRC2008 on Fri, 25 January 2008 02:35
		Re: Color table By: David Fanning on Fri, 25 January 2008 01:15
		Re: Color table By: WRC2008 on Fri, 25 January 2008 00:54
		Re: Color table By: David Fanning on Thu, 24 January 2008 10:00
		Re: Color table By: WRC2008 on Thu, 24 January 2008 09:41
		Re: Color table By: David Fanning on Thu, 24 January 2008 09:25
		Re: Color table By: WRC2008 on Thu, 24 January 2008 09:02
		Re: Color table By: David Fanning on Thu, 24 January 2008 08:19
		Re: Color table By: WRC2008 on Thu, 24 January 2008 07:17
		Re: Color table By: David Fanning on Thu, 24 January 2008 05:04
		Re: Color Table By: Nikola on Wed, 18 August 2010 05:44
		Re: Color Table By: panblosky on Tue, 17 August 2010 06:32
		Re: Color Table By: Wout De Nolf on Tue, 17 August 2010 05:42
		Re: Color table By: David Fanning on Sat, 10 November 2012 17:38

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