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Re: Color question [message #24499 is a reply to message #19825]

Tue, 03 April 2001 14:18

davidf
Messages: 2866
Registered: September 1996

Senior Member

R. Kyle Justice (rkj@dukebar.crml.uab.edu) writes:

> I have a filled contour plot that I would like to
> display with a color bar. Everything looks fine
> on the screen but when I try to print, the colors
> on the bar are no longer correct. They appear
> washed out(dithered?). The contour colors, however,
> appear correct. If I look at the file with
> ghostscript, everything looks fine.
>
> I am generating the color bar with TV. It seems
> that the printer is treating a plot and an image
> differently.

Be sure you set BITS_PER_PIXEL to 8 on your
device command. There are only 4 bits per pixel
saved for image pixel by default. Enough for
only 16 colors.

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		color question By: R.Bauer on Thu, 20 April 2000 00:00
		Re: Color question By: rkj on Wed, 04 April 2001 11:47
		Re: Color question By: John-David T. Smith on Wed, 04 April 2001 11:21
		Re: Color question By: davidf on Wed, 04 April 2001 10:41
		Re: Color question By: rkj on Wed, 04 April 2001 10:15
		Re: Color question By: Liam E. Gumley on Wed, 04 April 2001 10:02
		Re: Color question By: davidf on Wed, 04 April 2001 09:47
		Re: Color question By: rkj on Wed, 04 April 2001 09:24
		Re: Color question By: Martin Schultz on Wed, 04 April 2001 00:46
		Re: Color question By: davidf on Tue, 03 April 2001 14:38
		Re: Color question By: rkj on Tue, 03 April 2001 14:20
		Re: Color question By: davidf on Tue, 03 April 2001 14:18
		Re: Color Question By: savoie on Fri, 22 November 2002 07:39
		Re: Color Question By: Rodenacker on Fri, 22 November 2002 01:53
		Re: Color Question By: Karsten Rodenacker on Fri, 22 November 2002 01:49

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