Re: Convex Hull 3D
- To: mathgroup at smc.vnet.net
- Subject: [mg65454] Re: [mg65430] Convex Hull 3D
- From: "Ingolf Dahl" <ingolf.dahl at telia.com>
- Date: Sun, 2 Apr 2006 05:00:15 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Here are two tracks you might follow: 1) See http://library.wolfram.com/infocenter/MathSource/1160/ and http://www.qhull.org/ for Qhull. Good luck! (I have not tried this myself) 2) See http://mathworld.wolfram.com/ConvexHull.html On that page there is a link to download ConvexHull.m, and another to download ConvexHull.nb. Download both! (The first is also included in http://mathworld.wolfram.com/packages/MathWorldPackages.zip). Load the m file first into Mathematica, and execute it. Then load the nb file, and check the examples. You might also need http://library.wolfram.com/infocenter/MathSource/5087/ Please answer to MathGroup and tell if you get anything interesting out of this. Best regards Ingolf Dahl Sweden > -----Original Message----- > From: Virgil Stokes [mailto:virgil.stokes at it.uu.se] To: mathgroup at smc.vnet.net > To: mathgroup at smc.vnet.net > Subject: [mg65454] [mg65430] Convex Hull 3D > > Today I installed Mathematica 5.2 and although there are many > enhancements I was disappointed that it still does not have a > convex hull function for 3 dimensional objects. In earlier > contacts with Wolfram Research (several years ago), I was > given the impression that such a function would be part of > the next release; but, this has not happened. > > Before sending this email, I checked "Wolfram Research > Forums", including "Documentation Center", "Mathematica > Information Center", and "MathGroup" which were not very > useful on finding a Mathematica implementation for finding > the convex hull of 3D objects. However, I did do a search > through the MathGroup archives and found that there was a > discussion on this topic, e.g. "[mg44708] Follow up: 3D Convex Hull" , > (2003-11-21) contained a link --- but link didn't work. I > finally did find a site that had an experimental Mathematical > implementation for Mathematica 3.0 and tried to get this > running in Mathematica 5.2; but, was unsuccessful. > > I would appreciate greatly Mathematica code for finding the > convex hull of 3D objects. > > --Thanks, > V. Stokes >