NOTE: This License is not the same as any of the GNU Licenses published by the Free Software Foundation. Its terms are substantially different from those of the GNU Licenses. If you are familiar with the GNU Licenses, please read this license with extra care.
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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL LICENSOR, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
If any part of this License is found to be in conflict with the law, that part shall be interpreted in its broadest meaning consistent with the law, and no other parts of the License shall be affected.
For United States Government users, the Program is provided with RESTRICTED RIGHTS. If you are a unit or agency of the United States Government or are acquiring the Program for any such unit or agency, the following apply:
If the unit or agency is the Department of Defense ("DOD"), the Program and its documentation are classified as "commercial computer software" and "commercial computer software documentation" respectively and, pursuant to DFAR Section 227.7202, the Government is acquiring the Program and its documentation in accordance with the terms of this License. If the unit or agency is other than DOD, the Program and its documentation are classified as "commercial computer software" and "commercial computer software documentation" respectively and, pursuant to FAR Section 12.212, the Government is acquiring the Program and its documentation in accordance with the terms of this License.
Copyright 1996 Jonathan Richard Shewchuk
School of Computer Science
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, Pennsylvania 15213-3891
Please send bugs and comments to firstname.lastname@example.org
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, constrained Delaunay triangulations, and quality conforming Delaunay triangulations. The latter can be generated with no small angles, 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
[Triangle] 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 [JRS].)
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 email@example.com) 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, please include an acknowledgment as well.
Jonathan Richard Shewchuk
July 20, 1996
Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, modify, translate, and distribute this software and its documentation (hereby called the "package") for any purpose, including commercial applications, subject to the following conditions:
The authors specifically disclaim any warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The package provided hereunder is on an "as is" basis, and the authors have no obligation to provide maintenance, support, updates, enhancements, or modifications. In no event shall TeCGraf, PUC-Rio, or the authors be held liable to any party for direct, indirect, special, incidental, or consequential damages arising out of the use of this package and its documentation.
The Lua language and this implementation have been entirely designed and written by Waldemar Celes, Roberto Ierusalimschy and Luiz Henrique de Figueiredo at TeCGraf, PUC-Rio in Brazil.
This implementation contains no third-party code.