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Re: cgimage and color tables [message #79567 is a reply to message #79566]

Mon, 12 March 2012 22:00

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

A J writes:

> I need to display a grid of values, numbered 1-5, each value having a
> specific color. What I have been trying to do is something like this:
>
>> color_code = ['grn6', 'dodger blue', 'royal blue', 'salmon', 'pink']
>
>> cgimage, grid, /scale, bottom = 0, top = 4
>
> I don't want to set a predefined color table becasue I want to use the
> colors I have chosen above. I have failed in my attempts to create a
> color table with just these 5 colors. So how do I get, say, value 3 to
> use color_code[2] etc?

Greetings from Hawaii. I'm not working. In fact, I'm suppose
to be making dinner! :-)

TVLCT, cgColor(color_code, /Triple), 0
cgImage, grid, ....

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thue. ("Perhaps thos speakest truth.")

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[Message index]

		Re: cgimage and color tables By: A J on Mon, 12 March 2012 22:50
		Re: cgimage and color tables By: David Fanning on Mon, 12 March 2012 22:00

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