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Re: getting procedures to use proper color index via LOADCT, x [message #10656 is a reply to message #10655]

Mon, 22 December 1997 00:00

rivers
Messages: 228
Registered: March 1991

Senior Member

In article <ELK5uC.1G0.A.ebony@news.trentu.ca>, dmarshall@ivory.trentu.ca writes:
> A lurker de-lurks:
>
> I am running Student Version IDL 5.0 on Windows 95
>
> I cannot get procedures like SURFACE etc to access the loaded color table.
>
> LOADCT, 5
>
> Gives me no problem, no error messages and it confirms loading the table.
>
> But then my plots only ever show up in various shades of red.
> I confirm this by running CINDEX.

It sounds like your display is set to True Color. Do HELP, /DEVICE to check.
If it is then doing SURFACE, COLOR='50'x will produce a red plot. However
doing SURFACE, COLOR='505050'x will draw using the correct color in your
lookup table. True color in IDL is pretty tricky, and not very will documented
IMHO. David Fanning's Web page has some very useful tips.

You can also simply change your display to 256 colors, but then you have the
limitations of a limited color map.

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Chicago, IL 60637 rivers@cars.uchicago.edu (e-mail)

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[Message index]

		Re: getting procedures to use proper color index via LOADCT, x By: grunes on Wed, 24 December 1997 00:00
		Re: getting procedures to use proper color index via LOADCT, x By: Kevin Ivory on Mon, 22 December 1997 00:00
		Re: getting procedures to use proper color index via LOADCT, x By: rivers on Mon, 22 December 1997 00:00

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