Path: news.mathworks.com!newsfeed-00.mathworks.com!newsfeed2.dallas1.level3.net!news.level3.com!postnews.google.com!g23g2000vbr.googlegroups.com!not-for-mail
From: Ben <jbenjam@gmail.com>
Newsgroups: comp.soft-sys.matlab
Subject: plot a surface bounding a set of points in 3-D?
Date: Thu, 25 Jun 2009 14:12:40 -0700 (PDT)
Organization: http://groups.google.com
Lines: 15
Message-ID: <e9f68a81-9fbf-4720-81ac-58892770d35f@g23g2000vbr.googlegroups.com>
NNTP-Posting-Host: 128.183.110.112
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Trace: posting.google.com 1245964361 18631 127.0.0.1 (25 Jun 2009 21:12:41 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Thu, 25 Jun 2009 21:12:41 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: g23g2000vbr.googlegroups.com; posting-host=128.183.110.112; 
	posting-account=k71GrQgAAABoaExIto65pVL3WbVinnYS
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.11) 
	Gecko/2009061118 Fedora/3.0.11-1.fc9 Firefox/3.0.11,gzip(gfe),gzip(gfe)
Xref: news.mathworks.com comp.soft-sys.matlab:550735



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