POV-Ray : Newsgroups : povray.binaries.images : seven-fold symmetry : Re: seven-fold symmetry Server Time
1 Aug 2024 20:10:22 EDT (-0400)
  Re: seven-fold symmetry  
From: Russell Towle
Date: 23 Mar 2008 09:20:04
Message: <web.47e6662f906def86e4edf5b0@news.povray.org>
"Tek" <tek### [at] evilsuperbraincom> wrote:
> Dumb question: does that pattern ever repeat itself or is it always curved
> round the center like that? i.e. does it go on forever, and if so does it
> keep changing or repeating?
>
> Anyway eneough of these objects, do it using pigments and warp { repeat
> flip }!!!

This tiling is finite but it could be infinite. It's not a dumb question.

It has to do with the Generalized Dual Method. An arrangement of lines leads to
a tiling. Here there were seven sets of lines, each set parallel to one of the
seven sides of a regular 7-gon. Each set had something like thirty lines. If
each of the seven sets had had an infinite number of lines, the tiling too
would have been infinite, and yet still it would have had a center of 7-fold
symmetry.

I guess I must be much in the minority, but I find these tilings fascinating.
They bear upon a subject I have studied since the 1960s. This particular tiling
is related to a space-filling of 7-dimensional cubes in 7-space.  I find great
beauty in geometry and wish to illuminate this beauty using POV-Ray.


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