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Subject: Re: Bounding a set of points with a curve?



Boxman wrote:
> These points are coming from an optical analysis and represent the
> position of thousands of rays hitting the surface.

In other words, you're effectively doing the same job a 3D "laser
scanner" shape measurement device would do, but you're not really
interested in the entire surface as a result, but just in it boundary.

It may still be easiest to go all the way nevertheless, i.e. run a
"surface reconstruction from scattered points" algorithm like CRUST,
COCONE or alpha-Shapes (--> http://cgafaq.info) on your input, then
scan the resulting polygon mesh for boundary edges.

--
Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de)
Even if all the snow were burnt, ashes would remain.

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