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From: sfeam <sfeam@users.sourceforge.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Scripts for Plotting qhull results
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Date: Mon, 26 Dec 2011 22:10:58 -0800
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wolfgang wrote:

> Hi all,
> I have done a search for "qhull" and it was not showing any entries
> here.
> But I'm pretty sure that some of you have been using the qhull
> software
> for convex hulls, Delaunay triangulation and Voronoi diagrams. The
> software at www.qhull.org is also used in R (package geometry) and in
> Matlab and Octave.
> My question is: Does anybody of you know of some scripts for applying
> gnuplot illustrating the results of qhull, maybe in 2- or 3
> dimensions?
> Thanks, Wolfgang

The final plot of circles.dem shows a Delaunay tesselation
   http://gnuplot.sourceforge.net/demo_cvs/circles.html

But I do not know if the qhull package was used to create the data.