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Re: How to draw IDLgrPlots over IDLgrImages? [message #67816 is a reply to message #67809]

Thu, 27 August 2009 09:55

natha
Messages: 482
Registered: October 2007

Senior Member

I'm trying to plot some IDLgrPlots above an IDLgrImage. I draw the
plots firstly and then the image. The image can change.
If I don't do anything, the image is drawn over the plots and I don't
want that.

I'm trying to use the ZVALUE property of the IDLgrPlot but I didn't
succeed. My idea is plot the IDLgrPlots using a different Z value,
more closer to the EYE of the viewer. If I can do that, my problem
will disappear.

The View uses an ortogonal projection by default, the Znear and Zfar
are set to [-1,1] and the eye is in the position 4.
So, in theory, using the following declaration, all should work

plot=OBJ_NEW('IDLgrPlot', COLOR=..., DATAX=INDGEN(10),DATAY=INTARR
(10),ZVALUE=0.5, /USE_ZVALUE)

But, the plot is always under the image. Can you help now ?
Thanks,
nata

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[Message index]

		Re: How to draw IDLgrPlots over IDLgrImages? By: David Fanning on Thu, 27 August 2009 13:03
		Re: How to draw IDLgrPlots over IDLgrImages? By: natha on Thu, 27 August 2009 09:55
		Re: How to draw IDLgrPlots over IDLgrImages? By: David Fanning on Thu, 27 August 2009 09:30
		Re: How to draw IDLgrPlots over IDLgrImages? By: natha on Thu, 27 August 2009 09:17
		Re: How to draw IDLgrPlots over IDLgrImages? By: David Fanning on Thu, 27 August 2009 09:06
		Re: How to draw IDLgrPlots over IDLgrImages? By: Robbie on Sun, 06 September 2009 20:54

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