"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> I thankyou.
>
> #macro Knot(a)
>   (<sin(a) + 2*sin(2*a), 1.25*sin(3*a), cos(a) - 2*cos(2*a)>)
> #end
> blob {
>   threshold 0.9
>   #local ang = 0;
>   #while (ang < 2*pi)
>     sphere { Knot(ang), 1.5, 0.5 }
>     #local ang = ang + 0.01;
>   #end
>   pigment { color Black }
>   finish { ambient 0 diffuse 0 reflection { 1 } } }
>
> Enjoy.
> :)

Oh, thank you Bill!! You're the best. I made a sculpture a long time ago,
exactly this shape ... started by knotting a piece of dryer hose.

Janet

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