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Re: custom color table [message #32189 is a reply to message #32188]

Fri, 20 September 2002 12:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Miklos Z. Kiss (mzkiss@unity.ncsu.edu) writes:

> Many thanks. On these types of monochrome scales, color #0 is black (0, 0,
> 0), and color #255 is cyan (0, 255, 255) or orange (255, 165, 0). Is there
> a simple, or at least, a systematic, way to make a color table in which
> color #0 is black, color #255 is white, and everything in between is the
> shade of some the color in question? I am thinking of the way IDL's
> predefined color tables are, such as color tables, 0, 1, 3, and 8. I guess
> technically speaking this would be more of a quasi-monochrome color table.

OK, sigh...

TVLCT, 0, 0, 0, 0 ; Black
TVLCT, 255, 255, 255, 255 ; White
TVLCT, Congrid(bytarr(256), 253), $
Congrid(bindgen(256), 253), $
Congrid(bindgen(256), 253), 1

And

TVLCT, Congrid(bindgen(256), 253), $
Congrid(BytScl(bindgen(256), top=165), 253), $
Congrid(bytarr(256), 253), 1

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@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]

		Re: custom color table By: Miklos Z. Kiss on Sat, 21 September 2002 17:05
		Re: custom color table By: Miklos Z. Kiss on Sat, 21 September 2002 17:04
		Re: custom color table By: Miklos Z. Kiss on Sat, 21 September 2002 17:04
		Re: custom color table By: David Fanning on Sat, 21 September 2002 12:01
		Re: custom color table By: R.Bauer on Sat, 21 September 2002 07:42
		Re: custom color table By: R.Bauer on Sat, 21 September 2002 07:35
		Re: custom color table By: Kenneth P. Bowman on Fri, 20 September 2002 15:38
		Re: custom color table By: David Fanning on Fri, 20 September 2002 12:49
		Re: custom color table By: David Fanning on Fri, 20 September 2002 12:43
		Re: custom color table By: Miklos Z. Kiss on Fri, 20 September 2002 12:00
		Re: custom color table By: David Fanning on Fri, 20 September 2002 11:33

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