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Re: simplest contour & .png [message #80007 is a reply to message #80004]

Thu, 26 April 2012 07:45

Leslie Moy
Messages: 4
Registered: August 2011

Junior Member

On Apr 26, 10:17 am, David Fanning <n...@idlcoyote.com> wrote:
> David Fanning writes:
>> The code you want probably looks more like this:
>
>> cgLoadCT, 33
>> cgImage, C, /Scale, /Axes, Position=[0.125,0.125,0.95,0.8], /Window
>> cgColorbar, Range=[min(C),max(C)],Divisions=12, XTicklen=1, $
>> XMinor=0, Position=[0.125,0.915,0.955,0.95],$
>> Charsize=1.00, Format='(F0.4)', /AddCmd
>> cgControl, Output='tt.png'
>
> Now that I think about it, if you really just want 12
> colors, the code probably looks more like this:
>
> cgLoadCT, 33, NColors=12
> cgImage, BytScl(C, TOP=11), /Axes, Position=[0.125,0.125,0.95,0.8], $
> /Window
> cgColorbar, Range=[min(C),max(C)], /Discrete, $
> Postion=[0.125,0.915,0.955,0.95],$
> Charsize=1.00, Format='(F0.4)', NColors=12, /AddCmd
> cgControl, Output='tt.png'
>
> 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.")

It works if I get rid of '/discrete' to the cgcolorbar command.
Also, i use 'create_png' not 'output'. My version didn't recognize
'output'. Is this a new command? (I haven't updated in a while).

Btw, why is choosing 12 colors significant? (I chose it because that
was the value you have in your book's example). When would i have to
use your first suggestion?

My first post! Thank you very very much.

Leslie

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[Message index]

		Re: simplest contour & .png By: David Fanning on Thu, 26 April 2012 08:08
		Re: simplest contour & .png By: Leslie Moy on Thu, 26 April 2012 07:45
		Re: simplest contour & .png By: David Fanning on Thu, 26 April 2012 07:17
		Re: simplest contour & .png By: David Fanning on Thu, 26 April 2012 07:12
		Re: simplest contour & .png By: Leslie Moy on Thu, 26 April 2012 07:44
		Re: simplest contour & .png By: Paul Van Delst[1] on Mon, 30 April 2012 07:49

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