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RE: colorbar to display the 0 in the middle [message #81506 is a reply to message #47399]

Sun, 30 September 2012 16:47

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

larsonej writes:

> I have a very simple question that I am having trouble finding an answer to. It is related to this post however. I have a contour map with defined contours in log scale. that go from -4 to 4. I want to make a colorbar to go with it. However, putting the min range = -4 and the max range = 4 and setting /log or /ylog gives me a colorbar that stays positive. Any thoughts? Is there an easy way to do this, or do I have to create a positive and negative colorbar next to each
other?
>

I suppose you could do this:

IDL> cgcolorbar, range=[1./1e4,1e4], /xlog

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]

		colorbar to display the 0 in the middle By: vigeesh on Thu, 09 February 2006 17:53
		Re: colorbar to display the 0 in the middle By: vigeesh on Sat, 11 February 2006 22:54
		Re: colorbar to display the 0 in the middle By: David Fanning on Sun, 12 February 2006 07:57
		Re: colorbar to display the 0 in the middle By: savoie on Fri, 10 February 2006 08:11
		Re: colorbar to display the 0 in the middle By: David Fanning on Fri, 10 February 2006 07:59
		Re: colorbar to display the 0 in the middle By: vigeesh on Fri, 10 February 2006 07:25
		Re: colorbar to display the 0 in the middle By: vigeesh on Fri, 10 February 2006 07:22
		Re: colorbar to display the 0 in the middle By: ph le sager on Fri, 10 February 2006 03:48
		Re: colorbar to display the 0 in the middle By: David Fanning on Fri, 10 February 2006 03:12
		RE: colorbar to display the 0 in the middle By: David Fanning on Sun, 30 September 2012 16:47
		RE: colorbar to display the 0 in the middle By: larsonej on Sun, 30 September 2012 16:22

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