"gregjohn" <pte### [at] yahoocom> wrote:
> I would like a macro which is like Mike Williams' sweep spline, only with
> this added feature....


Mike, in all honesty, I cannot find the version of your macro with the
spline as waist, instead of waist as spline.

In other words, all the ones I've been using over the years apparently have:

     #local W = vlength(Waist(su).x);

which AFAICS is merely a call of the x coordinate to get a radius-->
circular section.

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