Re: Convex hull in 3D
- To: mathgroup at smc.vnet.net
- Subject: [mg111678] Re: Convex hull in 3D
- From: Arturas Acus <Arturas.Acus at tfai.vu.lt>
- Date: Tue, 10 Aug 2010 03:54:43 -0400 (EDT)
And I remember that IMTEK package for finite element calculations has mathematica interface to very fast convex hull compiled code in arbitrary dimension. Just ask google for IMTEK and Mathematica. On Mon, 9 Aug 2010, Christopher Henrich wrote: > In article <i3gptp$35i$1 at smc.vnet.net>, > "S. B. Gray" <stevebg at ROADRUNNER.COM> wrote: > >> I'm pretty sure that a few years ago I downloaded a function that Eric >> W. wrote to compute the CH of some points in 3D. He intended it to be a >> temporary solution because Mathematica has CH only for 2D. I can't find it >> now >> and I need it. I have only a dozen or so random points and don't need >> super speed. >> >> Steve Gray > > I submitted a set of packages for multidimensionl convex polyhedra to > the Wolfram Library Archive: > <http://library.wolfram.com/infocenter/MathSource/7034/> > I would advise that you convert your coordinates to rational numbers. > Then I think it would handle the problem you describe with satisfactory > speed. > > -- > Christopher J. Henrich > chenrich at monmouth.com > http://www.mathinteract.com > "A bad analogy is like a leaky screwdriver." -- Boon > >