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Re: Problem in creating Postscript of "Transparent Histograms" [message #76541 is a reply to message #76539]

Thu, 16 June 2011 09:47

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Poonam Chandra writes:

> I am creating transparent histogram plots using Coyote's tutorial
> ( http://www.idlcoyote.com/graphics_tips/overlaphisto.html ). It works
> fine but when I try to create it in Coyote's resizable window, the
> command cgSnapshot fails.

cgSnapshot fails because cgWindow is "protecting" itself
against unwanted intrusion. To take a snapshot of a cgWindow,
you need to get the window ID and use it like this:

cgPlot, cgDemoData(1), /Window
wid = cgQuery(/Current)
snap = cgSnapShot(/PNG, WID=wid)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thue. ("Perhaps thos speakest truth.")

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[Message index]

		Re: Problem in creating Postscript of "Transparent Histograms" By: David Fanning on Thu, 16 June 2011 14:24
		Re: Problem in creating Postscript of "Transparent Histograms" By: Poonam Chandra on Thu, 16 June 2011 10:21
		Re: Problem in creating Postscript of "Transparent Histograms" By: David Fanning on Thu, 16 June 2011 09:47
		Re: Problem in creating Postscript of "Transparent Histograms" By: Phillip Bitzer on Sat, 02 July 2011 13:50

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