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From: "Luigi Giaccari" <giaccariluigi@msn.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: plot a surface bounding a set of points in 3-D?
Date: Tue, 30 Jun 2009 11:05:03 +0000 (UTC)
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Ben <jbenjam@gmail.com> wrote in message <e9f68a81-9fbf-4720-81ac-58892770d35f@g23g2000vbr.googlegroups.com>...
> 
> Hi,
> 
> I have a 3-D scatter plot of points (each point has an x,y,z
> coordinate on a regularly spaced grid).  The points are organized into
> clumps (as opposed to be randomly scattered).  Rather than using plot3
> to visualize the clumps as collections of points, is it possible to
> plot a smooth surface that bounds these points instead?
> 
> I've tried the method in "doc surf", but it creates more like a
> "height map" with the Z-axis, rather than bounding surfaces.
> 
> Thanks,
> 
> -Ben

http://giaccariluigi.altervista.org/blog/

http://www.mathworks.com/matlabcentral/fileexchange/22185

http://www.mathworks.com/matlabcentral/fileexchange/22595

http://www.mathworks.com/matlabcentral/fileexchange/23447