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Re: How to create a colour table in IDL? [message #90005 is a reply to message #90004]

Wed, 14 January 2015 10:16

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Madhavan Bomidi writes:

> There is no change in the colorbar in both the following cases:
>
> cgLoadCT, 22, /Brewer
> (or)
> cgLoadCT, 22, /Brewer, ncolors=6
>
> I wanted to have 6 color bands from /Brewer colour table similar to the one shown in the link indicted earlier. I don't understand where I am going wrong?

I think you probably are NOT reading the documentation. :-)

There is a HUGE difference. Type these commands:

cgLoadCT, 22, /Brewer
cIndex

Now, close cIndex and type these commands:

cgLoadCT, 0
cgLoadCT, 22, /Brewer, NColors=6
cIndex

Do you see the 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 thue. ("Perhaps thou speakest truth.")

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[Message index]

		How to create a colour table in IDL? By: atmospheric physics on Tue, 13 January 2015 02:32
		Re: How to create a colour table in IDL? By: Helder Marchetto on Tue, 13 January 2015 02:39
		Re: How to create a colour table in IDL? By: Helder Marchetto on Tue, 13 January 2015 02:54
		Re: How to create a colour table in IDL? By: atmospheric physics on Tue, 13 January 2015 03:46
		Re: How to create a colour table in IDL? By: Helder Marchetto on Tue, 13 January 2015 04:28
		Re: How to create a colour table in IDL? By: David Fanning on Tue, 13 January 2015 04:56
		Re: How to create a colour table in IDL? By: atmospheric physics on Tue, 13 January 2015 05:33
		Re: How to create a colour table in IDL? By: atmospheric physics on Wed, 14 January 2015 05:42
		Re: How to create a colour table in IDL? By: David Fanning on Wed, 14 January 2015 07:59
		Re: How to create a colour table in IDL? By: atmospheric physics on Wed, 14 January 2015 09:24
		Re: How to create a colour table in IDL? By: David Fanning on Wed, 14 January 2015 09:39
		Re: How to create a colour table in IDL? By: atmospheric physics on Wed, 14 January 2015 10:09
		Re: How to create a colour table in IDL? By: David Fanning on Wed, 14 January 2015 10:16
		Re: How to create a colour table in IDL? By: atmospheric physics on Thu, 15 January 2015 02:40
		Re: How to create a colour table in IDL? By: David Fanning on Thu, 15 January 2015 05:16
		Re: How to create a colour table in IDL? By: Burch on Thu, 15 January 2015 06:06
		Re: How to create a colour table in IDL? By: atmospheric physics on Thu, 15 January 2015 09:28
		Re: How to create a colour table in IDL? By: David Fanning on Thu, 15 January 2015 09:33
		Re: How to create a colour table in IDL? By: atmospheric physics on Fri, 16 January 2015 05:33
		Re: How to create a colour table in IDL? By: Nikola on Fri, 16 January 2015 01:32
		Re: How to create a colour table in IDL? By: atmospheric physics on Fri, 16 January 2015 05:34

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