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Subject: Bounding a set of points with a curve?



Can anyone suggest an algorithm to use for the following problem:

I have a dense set of 3d points (for example 10000) that lie on a
defined surface but don't necessarily cover the whole surface. The
points are not regularly spaced and the shape that they cover on the
surface is irregular. I would like to draw a polyline connecting only
the points that form the boundary that encloses all of these points.

Any suggestions would be appreciated.


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