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Re: perimeter of a blob

In article <MPG.12f91c174956d2d89899fc@news.frii.com>, davidf@dfanning.com
(David Fanning) wrote:

> Anyway, the easiest way to get a perimeter, I think is to
> use the Triangulate function.
> Cheers,

I think that TRIANGULATE returns the convex hull of a set of points.  If
the boundary of the region is concave, the perimeter is different from the
perimeter of the convex hull.

Ken Bowman