is the visibility of a Polygon exposed?
- To: mathgroup at smc.vnet.net
- Subject: [mg83653] is the visibility of a Polygon exposed?
- From: congruentialuminaire at yahoo.com
- Date: Tue, 27 Nov 2007 06:15:17 -0500 (EST)
Hello Mathematica UG:
Is it possible for my code to tell if a Polygon (in my graphics
object) is visible?
I assume that this is based upon (or is affected by) the ViewPoint->
Further, I assume that the kernel is deriving this somewhere to do
rendering. Do I have any access to this?
If I evaluate:
q = PolyhedronData["SnubCube"]
I can see the component Polygon and GraphicsComplex objects that
make up the Graphics3D. I want to make a code decision based on
whether a face is showing.
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