Sigmund Kyrre Aas wrote:

> $R=3;
> $Segment_curve=2;
> $Segment_length=5;
> isosurface {
>     function {
> sqrt(Segment_curve*cos(y/Segment_length))+x^2+z^2-R*(.995-y*.005)}
>     accuracy 0.001
>     contained_by{box{-<R,50,R>,<R,50,R>}}
>     pigment {rgb .9} finish {phong 0.5 phong_size 10}
> }

This doesn't quite convey the structure I'm used to seeing.
  http://www.artmarquetry.com/gallery/mretter/mr-p07.html
is much closer.

I saw a lot of wild bamboo growing up in Virginia in the US of all places   . . .

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