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Re: custom color table [message #32193 is a reply to message #32191]

Fri, 20 September 2002 11:33

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

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

> I am trying to create a custom monochrome color table in IDL. IDL has four
> (maybe five) predefined monochrome color tables (gray scale, red
> temperature, blue-white, and green-white). XPALETTE will allow me to create
> a custom color table, and I can load it using TVLCT, but how do I relate the
> red, green, and blue channels mathematically to create a, say, orange, or
> cyan monochrome color table?

The color cyan is (0, 255, 255), so a monochrome cyan
color table is this:

TVLCT, bytarr(256), bindgen(256), bindgen(256)

The color orange is (255, 165, 0), so a monochrome orange
color table is this:

TVLCT, bindgen(256), BytScl(bindgen(256), top=165), bytarr(256)

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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