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Transparent overlay in postscript cgimage [message #92328]

Wed, 18 November 2015 08:44

David Klassen
Messages: 27
Registered: December 2004

Junior Member

So I'm tying to make a postscript output of a two-image overlay with color bar. The code I use to do this is:

ymult=1.15
cgdisplay,1080,540*ymult
cgimage,baimg,ct=0,position=[0,0,1,1/ymult],background=0
cgimage,bimg,transp=0,missing_index=0,ct=31,/brewer,$
alphafgposition=[0,0,1,1/ymult]
cgcolorbar,range=[0,0.5],format='(f0.4)',/top,ctindex=31,/br ewer,$
position=[0.10,0.90,0.95,0.93],xticks=8,color='white',$
title='Ice Cloud Optical Depth ('+textoidl(' \tau_{12.1 \mu m} ')+')'

where bimg is they bytescaled version of my data overlay and baimge is the bytescaled version of my background albedo map. On screen this looks beautiful! And can use cgsnapshot to make it into a png file but the pixelated fonts, for some reason, really annoy me.

When I do a cgps_open,'test.eps' and then do these commands, it doesn't work and says I need an alphabackgroundimage but if I do that, the background image fills the display. And alphabgposition also causes an error.

What am I doing wrong?

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[Message index]

		Transparent overlay in postscript cgimage By: David Klassen on Wed, 18 November 2015 08:44
		Re: Transparent overlay in postscript cgimage By: David Fanning on Wed, 18 November 2015 09:20
		Re: Transparent overlay in postscript cgimage By: David Klassen on Wed, 18 November 2015 11:22

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