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From: ImageAnalyst <imageanalyst@mailinator.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: how to calculate volume of a 3D polygon?
Date: Thu, 25 Dec 2008 19:47:21 -0800 (PST)
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On Dec 25, 8:42=A0pm, "Jveer " <jv...@jveer.com> wrote:
> resolved - found that convhulln gives volume.

---------------------------------
Jveer:
Are you sure?  Convex hull gives a shape as though you wrapped a
stretchy sheet around your object.  So the convex hull of a banana
would be like a thick "D" shape, and the convex hull of a donut/torus
would be like a cylinder.  The convex hull of a thick, 3-dimensional
"E" shape would be a rectangular box.  This is not the same volume as
the actual volume unless your object is convex.
Regards,
ImageAnalyst