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Re: Multiple color plots, same color bar [message #86828 is a reply to message #86827]

Thu, 05 December 2013 14:57

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Lim writes:

>
> Dear all,
> I was wondering if someone could help me with a problem using one color bar for multiple plots with different ranges of colors. My example bellow produces two panels and one color bar. However the color bar does not match both panels but only the first one (I1 values).
> For I1 and I2, I need to do:
> 100-200=red
> 201-300=orange
> 301-400=yellow
> 401-500=green
> 501-600=blue
>
> therefore, using a color table from 0 to 600, the second panel should not have any blue color.
>
> I will appreciate any assistance.

You want this:

pro mci

X1=[2, 4, 5, 6, 7, 8]
Y1=[20, 40, 45, 30, 10, 5]
I1=[100,200,300,400,500,600]

X2=[3, 4.5, 5.5, 6.5, 7.5, 8.5]
Y2=[22, 25, 30, 33, 20, 8]
I2=[150,175,250,280,290,450]

cgLoadCT, 33, /reverse
clr1 = BytScl(i1, MIN=100, MAX=600)
clr2 = BytScl(i2, MIN=100, MAX=600)

cgWindow
pos1=[0.1,0.1,0.45,0.75]
pos2=[0.55,0.1,0.9,0.75]
;graph 1
cgPlot, X1, Y1, /Nodata, Xtitle='X', Ytitle='Y', $
position=pos1,/NoErase,/AddCMD
cgPlotS, X1, Y1, Psym=16,symsize=2,color=clr1,/AddCMD
;graph 2
cgplot,X2,Y2, /Nodata, Xtitle='X', Ytitle='Y', $
position=pos2,/NoErase, /AddCMD
cgPlotS, X2, Y2,Psym=16,symsize=2,color=clr2,/AddCMD
;the colorbar
cgColorbar, Divisions=5, Format='(I3)', Range=[100,600],$
/AddCMD , TLOCATION='Top', Title='I'

End

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]

		Multiple color plots, same color bar By: limiqt on Thu, 05 December 2013 14:22
		Re: Multiple color plots, same color bar By: David Fanning on Thu, 05 December 2013 14:57
		Re: Multiple color plots, same color bar By: limiqt on Thu, 05 December 2013 15:47
		Re: Multiple color plots, same color bar By: David Fanning on Thu, 05 December 2013 15:52

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