From: "John D'Errico" <>
Newsgroups: comp.soft-sys.matlab
Subject: Re: volume
Date: Wed, 18 Aug 2010 17:50:30 +0000 (UTC)
Organization: John D'Errico (1-3LEW5R)
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"Guillaume " <> wrote in message <i4h5iv$nld$>...
> Hello, 
> I have a set of points in an N-dimensional space. By means of convhulln, I computed the volume of the convex hull, but I would like now to compute the volume of the "non convex hull", and compare them to have a measure of convexity.
> What would you propose?

How have you computed the "non-convex" hull?

Do you have a triangulated surface as generated by an
alpha shape? If so, it is quite easy. If not, then you still
need to define that non-convex hull in some way.