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MathGroup Archive 2003

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Re: 3D Convex Hull : corrected URI

  • To: mathgroup at smc.vnet.net
  • Subject: [mg44701] Re: [mg44670] 3D Convex Hull : corrected URI
  • From: jmt <jmt at dxdydz.net>
  • Date: Fri, 21 Nov 2003 05:13:22 -0500 (EST)
  • References: <79344CBB6297454F86DD3106ADCC76CC04AFD7@mail3.nwfwmd.state.fl.us>
  • Reply-to: jmt at dxdydz.net
  • Sender: owner-wri-mathgroup at wolfram.com

This link is available :
http://www.thesa.com/software/qhull/

On Thursday 20 November 2003 15:27, Gilmar Rodriguez wrote:
  > Dear JMT at dV.net:
  > Thank you for answering my e-mail.  I attempted to use your shortcut:
  > http://www.geom.umn.edu/software/qhull
  > but, this shortcut seems to be no longer active.
  >
  > -----Original Message-----
  > From: jmt [mailto:jmt at dxdydz.net]
To: mathgroup at smc.vnet.net
  > Sent: Thursday, November 20, 2003 5:05 AM
  > To: Gilmar Rodriguez; mathgroup at smc.vnet.net
  > Subject: [mg44701] Re: [mg44670] 3D Convex Hull
  >
  > For large datasets, you can use QuickHull
  > http://www.geom.umn.edu/software/qhull
  > which provides an output format suitable for Mathematica
  >
  > On Thursday 20 November 2003 09:16, Gilmar Rodr?guez Pierluissi wrote:
  >   > A Mathematica program to build a Three Dimensional Convex Hull
  >   > for a set of 3-dimensional points, and a notebook to test this
  >   > program, appear in:
  >   >
  >   > http://forums.wolfram.com/mathgroup/archive/1998/May/msg00005.html
  >   >
  >   > The program works fine for a small input data set (the input data
  >   > set used in the notebook is called "points"), but the program
  >
  > becomes
  >
  >   > very sluggish for larger input data sets.  I want to know if there
  >   > exist any improved versions of this program (since 1988), built by
  >   > either the author(Wouter Meeussen), or any other person who might
  >   > have used it, and tested it with larger input data sets.
  >   > Thank you for your feedback!


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