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cgcontour and cgcolorbar irregular levels [message #93514]

Tue, 09 August 2016 10:22

tho.siegert
Messages: 6
Registered: April 2014

Junior Member

Hi all,

my problem is that when I use irregular spacings for contours in e.g. cgcontour, and then want to use a colorbar for it, e.g. with cgcolobar, I cannot match the colorbar and the data.

Example:
cgdisplay,1024*1.25,1024
cgloadct,39
aa = 10^(dindgen(100)/99*4-2)
cgcontour,dist(100)^2,aa,aa,levels=[2^(dindgen(10)),(dindgen (10)+1)*550],/fill,position=[0.1,0.1,0.74,0.9],/xlog,/ylog
cgcontour,dist(100)^2,aa,aa,levels=[2^dindgen(10),(dindgen(1 0)+1)*550],/noerase,position=[0.1,0.1,0.74,0.9],/xlog,/ylog
cgcolorbar,pos=[0.8,0.1,0.9,0.9],/vert,range=minmax([2^dindg en(10),(dindgen(10)+1)*550]),/ylog

You can immediately see that neither the colorbar range does not conform to the data. Also if the /ylog is removed, of course, it does not fit.

What do I have to do if I need irregular (here powerlaw for low values and linear for high values) contours and colours?

Thanks,
Thomas

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[Message index]

		cgcontour and cgcolorbar irregular levels By: tho.siegert on Tue, 09 August 2016 10:22
		cgcontour and cgcolorbar irregular levels By: DavidF[1] on Sat, 13 August 2016 15:50

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