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15 Nov 2024 14:19:56 EST (-0500)
  polar zonohedra (Message 1 to 4 of 4)  
From: Russell Towle
Subject: polar zonohedra
Date: 9 Mar 2008 11:00:01
Message: <web.47d4085a46de2a24c500d97a0@news.povray.org>
Convex polyhedra bounded entirely by centrally-symmetrical polygons are
zonohedra, and zonohedra determined by an integer "n" (n>=3) vectors disposed
like equally-spaced generators of a right cone are polar zonohedra. I made a
macro which constructs polar zonohedra in POV itself; it allows one to display
either the n*(n-1) rhombic faces, or the edges and vertices, as cylinders and
spheres; or all. In this case, only the edges and vertices are shown. This
(n=20, I think) polar zonohedron has a light source within it, and is itself
within a large sphere, along with another smaller sphere, and rests upon a
plane which for some reason has an old map of Calfornia's Sierra Nevada mapped
onto it ...


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polar_zonohedron.jpg


 

From: Mike the Elder
Subject: Re: polar zonohedra
Date: 10 Mar 2008 10:55:01
Message: <web.47d558b17e2b976b5a8888d90@news.povray.org>
"Russell Towle" <rto### [at] inreachcom> wrote:
> Convex polyhedra bounded ...I made a
> macro which constructs polar zonohedra in POV itself;  ...

Nifty stuff.  Is this this macro for SHARING?
....he said suggestively ;-)

Best Regards,
Mike C.


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From: Russell Towle
Subject: Re: polar zonohedra
Date: 10 Mar 2008 13:55:01
Message: <web.47d583177e2b976bab112d0c0@news.povray.org>
> Nifty stuff.  Is this this macro for SHARING?
> ....he said suggestively ;-)

I'll post it to binaries/scene files as a zipped archive of the two macros and a
sample scene file which uses them. I hope that the zipped archive expands into
proper text files.


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From: alphaQuad
Subject: Re: polar zonohedra
Date: 21 Mar 2008 12:40:01
Message: <web.47e3f23b7e2b976b4cb52d730@news.povray.org>
source posted to p.b.s.f polar zonohedra

7 minutes to render


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zonohedra7.jpg


 

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