Ville Koskinen <v_k_o_s_k_i_n_e_@mappi.helsinki.fi> wrote in message
news:3CA94381.2DE1D5BC@mappi.helsinki.fi...
>
> Well, yes. I was trying to recreate this:
> http://www.imagenetion3.hpg.ig.com.br/jjbinks/mcescher/pages/Knots.jpg
>
Any of those three would be very simple to create and take only a few
seconds to render. The largest would be easiest with my Partial_Mesh macro,
which I unfortunately have not yet written. The smallest could be coded in
just a few seconds with my Cheap_Sweep macro.

I don't have any code to post for the extrusion macro yet, because I just
made the example by taking apart and mis-using some of my other macros. I
will work on putting it together after I clean up and post my Cheap_Sweep
code.


> If you're interested, see also
> http://www.unca.edu/~mcmcclur/java/LiveMathematica/trefoil.html .
>

Thanks for posting the math. I'm going to try this shape sometime this week,
and knowing the formula beforehand will save me a lot of work.

 -Shay

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