Triangle

If you want to use Jonathan Shewchuk's Triangle as an alternative
isotropic 2D mesh generator in Gmsh, please download Triangle from the
author's web site at http://www.cs.cmu.edu/~quake/triangle.html,
unpack the archive and copy the two files 'triangle.c' and
'triangle.h' in this directory. Then run configure and rebuild Gmsh.

Please note that by doing so, you agree to Triangle's licensing
requirements (stated below). Most notably, you can only redistribute
Gmsh if no compensation is received.

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Triangle
A Two-Dimensional Quality Mesh Generator and Delaunay Triangulator.
Version 1.4

Copyright 1993, 1995, 1997, 1998, 2002 Jonathan Richard Shewchuk
2360 Woolsey #H
Berkeley, California  94705-1927
Please send bugs and comments to jrs@cs.berkeley.edu

Created as part of the Archimedes project (tools for parallel FEM).
Supported in part by NSF Grant CMS-9318163 and an NSERC 1967 Scholarship.
There is no warranty whatsoever.  Use at your own risk.

Triangle generates exact Delaunay triangulations, exact constrained
Delaunay triangulations, Voronoi diagrams, and quality conforming Delaunay
triangulations.  The latter can be generated with no small angles or large,
and are thus suitable for finite element analysis.

Information on the algorithms used by Triangle, including complete
references, can be found in the comments at the beginning of the triangle.c
source file.  Another listing of these references, with PostScript copies
of some of the papers, is available from the Web page

    http://www.cs.cmu.edu/~quake/triangle.research.html

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These programs may be freely redistributed under the condition that the
copyright notices (including the copy of this notice in the code comments
and the copyright notice printed when the `-h' switch is selected) are
not removed, and no compensation is received.  Private, research, and
institutional use is free.  You may distribute modified versions of this
code UNDER THE CONDITION THAT THIS CODE AND ANY MODIFICATIONS MADE TO IT
IN THE SAME FILE REMAIN UNDER COPYRIGHT OF THE ORIGINAL AUTHOR, BOTH
SOURCE AND OBJECT CODE ARE MADE FREELY AVAILABLE WITHOUT CHARGE, AND
CLEAR NOTICE IS GIVEN OF THE MODIFICATIONS.  Distribution of this code as
part of a commercial system is permissible ONLY BY DIRECT ARRANGEMENT
WITH THE AUTHOR.  (If you are not directly supplying this code to a
customer, and you are instead telling them how they can obtain it for
free, then you are not required to make any arrangement with me.)

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If you use Triangle, and especially if you use it to accomplish real
work, I would like very much to hear from you.  A short letter or email
(to jrs@cs.cmu.edu) describing how you use Triangle will mean a lot to
me.  The more people I know are using this program, the more easily I can
justify spending time on improvements and on the three-dimensional
successor to Triangle, which in turn will benefit you.  Also, I can put
you on a list to receive email whenever a new version of Triangle is
available.

If you use a mesh generated by Triangle or plotted by Show Me in a
publication, please include an acknowledgment as well.


Jonathan Richard Shewchuk
November 2, 2002