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Re: Multiple color plots, same color bar [message #86829 is a reply to message #86827]

Thu, 05 December 2013 15:47

limiqt
Messages: 27
Registered: October 2013

Junior Member

Hi David,
Yes, Your solution worked. Need to read about the bytscl. Thanks you very much.

Lim

On Thursday, December 5, 2013 5:22:48 PM UTC-5, Lim wrote:
> 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.
>
>
>
> Thanks,
>
> Lim
>
> ==============
>
> 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
>
> nelmspix=n_elements(X1)
>
> colors = cgScaleVector(Findgen(N_Elements(I1)), min(I1), max(I1))
>
> clr = Value_Locate(colors, I1)
>
> clr = Byte(Round(cgScaleVector(clr, 0, 255)))
>
>
>
> 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=clr,/AddCMD
>
> ;graph 2
>
> cgplot,X2,Y2, /Nodata, Xtitle='X', Ytitle='Y', position=pos2,/NoErase, /AddCMD
>
> cgPlotS, X2, Y2,Psym=16,symsize=2,color=clr,/AddCMD
>
> ;the colorbar
>
> cgColorbar, Divisions=5, Format='(I3)', Range=[100,600],/AddCMD , TLOCATION='Top', Title='I'
>
>
>
> End
>
> ==============

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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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