comp.lang.idl-pvwave archive: archive » Adding extra white in middle of colour bar

Home » Public Forums » archive » Adding extra white in middle of colour bar

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Adding extra white in middle of colour bar [message #85608 is a reply to message #85607]

Wed, 21 August 2013 07:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

ljs15@fsmail.net writes:

> That's the method I originally used, but that means the white colour is only being given to the middle contour range.
>
> What I want (for example) is eight contours -10,-9,...,-2 to be shades of blue, and eight contours 2,3,...,10 to be shades of red, and the contours between -2 and +2 to be white.
>
> Not sure if this is possible without having to manually make a colour table and load it with tvlct.

If the right color table doesn't exist, you have to create it. No
question about that. :-)

cgLoadCT, 22, /Brewer, /Reverse, NColors=21
TVLCT, cgColor(Replicate('white',3), /Triple), 9
cgColorbar, NColors=21, Range=[-10,10], XTicks=2, XMinor=0

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.")

Report message to a moderator

[Message index]

		Adding extra white in middle of colour bar By: Sir Loin Steak on Wed, 21 August 2013 03:20
		Re: Adding extra white in middle of colour bar By: David Fanning on Wed, 21 August 2013 06:03
		Re: Adding extra white in middle of colour bar By: Sir Loin Steak on Wed, 21 August 2013 06:33
		Re: Adding extra white in middle of colour bar By: David Fanning on Wed, 21 August 2013 07:04
		Re: Adding extra white in middle of colour bar By: Sir Loin Steak on Wed, 21 August 2013 12:52
		Re: Adding extra white in middle of colour bar By: David Fanning on Wed, 21 August 2013 17:13
		Re: Adding extra white in middle of colour bar By: Sir Loin Steak on Thu, 22 August 2013 05:57
		Re: Adding extra white in middle of colour bar By: David Fanning on Thu, 22 August 2013 06:15

Previous Topic:	Re: spawn not working
Next Topic:	Navigating AVIRIS Images

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 08:50:28 PDT 2025

Total time taken to generate the page: 0.88100 seconds