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MathGroup Archive 1998

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Re: Polygons In Space

Will Self wrote:
> I find that Mathematica does not show non-convex polygons in three
> dimensions properly.  Does anyone have a way to do this?  If I have to
> do it for myself, I think I will break the polygon into triangles. Does
> anyone have a way to break a (two-dimensional) polygon into triangles?
> If I have to do that for myself, I think I will try some recursive
> tack.
> I would suppose that other people have encountered this before, but this
> is the first I've had to deal with it.  Please email me.  Thanks.
> Will Self
> Montana


This is dealt with in Tom Wickham-Jones, Mathematica Grahics, p 448. He
uses his function NonConvexTriangulation from package
ExtendGraphics`NonConvexTriangulate`, available from MathSource in

Allan Hayes
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