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background transparency in tvscl? [message #44551]

Tue, 28 June 2005 13:09

Grant W. Petty
Messages: 2
Registered: June 2005

Junior Member

I am using IDL (Version 5.4 (linux x86)) routines 'scale3', 'shade_volume',
'polyshade', and 'tvscl' to render and display isosurfaces associated with
a 3D array. I am subsequently using 'axis' to add cartesian axes to the
rendered image.

Is there a way to make the background of the image resulting from
'polyshade' transparent so that I can call 'axis' once *before* 'tvscl', so
that a rear vertical axis can be plotted that is obscured only by the
foreground part of the image? Right now, if I call 'axis' before 'tvscl',
the plotted axis gets completely wiped out. If I plot it after, it appears
on top of the rendered volume, rather than behind it.

________________________________________
Prof. Grant W. Petty
Atmospheric and Oceanic Sciences
1225 W. Dayton Street
University of Wisconsin-Madison
Madison, WI 53706

gpetty@aos.wisc.edu
Tel: (608) 263-3265
Fax: (608) 262-0166

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background transparency in tvscl?

By: Grant W. Petty on Tue, 28 June 2005 13:09

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