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Re: imcontour no longer plotting in color [message #81027 is a reply to message #81026]

Thu, 02 August 2012 05:02

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Balthasar Indermuehle writes:

> I'm in what looks to be a veritable mess... my calls to imcontour to plot a FITS image no longer work with colour palettes, it just draws b/w. The legend however drawn with cgColorbar appear nice and normal in colour on the same piece of postscript, so it's obviously not a device problem.
>
> This is running from a piece of code that worked about a year ago, apart from updating from 10.6 to 10.7 (OS X obviously) there have been no changes to the system I'm aware of, certainly not in the IDL realm.
>
> Anyone have any clue where to even start looking!?

I don't use IMCONTOUR, but I notice you are trying to pass
it the colors to use via a PALETTE keyword. I don't have
a PALETTE keyword defined for my IMCONTOUR program, so
unless you have added one, this is probably the source
of the error.

When you call cgLoadCT, you use the RGB_TABLE keyword
to create the palette. No colors are loaded in the
hardware color table when this keyword is used.

I would try adding a second cgLoadCT command below
the first (assuming you are creating the palette
for a reason), and remove the RGB_TABLE keyword
on this call.

Does that make a difference?

Cheers,

David

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

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[Message index]

		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 20:27
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 18:23
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 17:59
		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 06:47
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 06:34
		Re: imcontour no longer plotting in color By: wlandsman on Thu, 02 August 2012 05:08
		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 05:02
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 03:16

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