Take a look at:
http://www.cris.com/~rjbono/html/domes.html
Output to PovRay is a possibility.
Greetings,
Herman

Eitan Tal wrote:
> 
> Thanks!
> and Yes, I mean the External object.
> Please tell me more about how to constuct a dome.
> 
> Herman Serras wrote:
> 
> > If you mean only the external object built from triangles: it's a
> > regular icosahedron. The internal object is an regular dodecahedron (the
> > dual polyhedron of a icosahedron).
> > Approximating a sphere by equilateral triangles is only possible in 3
> > ways: a regular tetrahedron, a regular octahedron or a regular
> > icosahedron. Of course the icosahedron is the best approximation.
> > If not all triangles have to be congruent there are different ways to
> > construct a "dome".
> > Have a look on my website for regular polyhedra and if you want an
> > appropriate include file, let me know (of course you can find polyhedron
> > include files on the web).
> > Herman
> >
> > Eitan Tal wrote:
> > >
> > > How can I build a looking-like sphere using triangles?
> > > For those of you who played D&D, I mean the 20 faced dice, for
> > > example.
> > >
> > > All triangles that build the sphere must be all equal in their area,
> > > and all of their angles are 60 degrees.
> > > An image would explain better:
> > >
> > > [Image]
> > >
> > > Moderators: I have devastatedly compressed the image to 7.5 kb,
> > > I hope you don't mind that I have included a file.
> >
> > --
> > Herman Serras
> > Gent (Belgium)
> > http://cage.rug.ac.be/~hs/

-- 
Herman Serras
Gent (Belgium)
http://cage.rug.ac.be/~hs/

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