Gmsh is copyright (C) 1997-2021

                       Christophe Geuzaine
                     <cgeuzaine at uliege.be>

                               and

                      Jean-Francois Remacle
              <jean-francois.remacle at uclouvain.be>

Code contributions to Gmsh have been provided by David Colignon (colormaps),
Emilie Marchandise (old compound geometrical entities), Gaetan Bricteux (Gauss
integration and levelsets), Jacques Lechelle (DIFFPACK export), Jonathan
Lambrechts (mesh size fields, solver, Python wrappers), Jozef Vesely (old Tetgen
integration), Koen Hillewaert (high order elements, generalized periodic
meshes), Laurent Stainier (eigenvalue solvers, tensor display and help with
MacOS port), Marc Ume (original list and tree code), Mark van Doesburg (old
OpenCASCADE face connection), Matt Gundry (Plot3d export), Matti Pellikka (cell
complex and homology solver), Nicolas Tardieu (help with Netgen integration),
Pascale Noyret (MED mesh IO), Pierre Badel (root finding and minimization), Ruth
Sabariego (pyramids), Stephen Guzik (old CGNS IO, old partitioning code),
Bastien Gorissen (parallel remote post-processing), Eric Bechet (solver), Gilles
Marckmann (camera and stero mode, X3D export), Ashish Negi (Netgen CAD healing),
Trevor Strickler (hybrid structured mesh coupling with pyramids), Amaury Johnen
(Bezier code, high-order element validity), Benjamin Ruard (old Java wrappers),
Maxime Graulich (iOS/Android port), Francois Henrotte (ONELAB metamodels),
Sebastian Eiser (PGF export), Alexis Salzman (compressed IO), Hang Si (TetGen/BR
boundary recovery code), Fernando Lorenzo (Tochnog export), Larry Price (Gambit
export), Anthony Royer (new partitioning code, MSH4 IO), Darcy Beurle (code
cleanup and performance improvements), Celestin Marot (HXT/tetMesh),
Pierre-Alexandre Beaufort (HXT/reparam), Zhidong Han (LSDYNA export), Ismail
Badia (hierarchical basis functions), Jeremy Theler (X3D export), Thomas
Toulorge (high order mesh optimizer, new CGNS IO), Max Orok (binary PLY), Marek
Wojciechowski (PyPi packaging), Maxence Reberol (automatic transfinite, quad
meshing tools), Michael Ermakov (Gambit export). See comments in the sources for
more information. If we forgot to list your contributions please send us an
email!

Thanks to the following folks who have contributed by providing fresh ideas on
theoretical or programming topics, who have sent patches, requests for changes
or improvements, or who gave us access to exotic machines for testing Gmsh: Juan
Abanto, Olivier Adam, Guillaume Alleon, Laurent Champaney, Pascal Dupuis,
Patrick Dular, Philippe Geuzaine, Johan Gyselinck, Francois Henrotte, Benoit
Meys, Nicolas Moes, Osamu Nakamura, Chad Schmutzer, Jean-Luc Fl'ejou, Xavier
Dardenne, Christophe Prud'homme, Sebastien Clerc, Jose Miguel Pasini, Philippe
Lussou, Jacques Kools, Bayram Yenikaya, Peter Hornby, Krishna Mohan Gundu,
Christopher Stott, Timmy Schumacher, Carl Osterwisch, Bruno Frackowiak, Philip
Kelleners, Romuald Conty, Renaud Sizaire, Michel Benhamou, Tom De Vuyst, Kris
Van den Abeele, Simon Vun, Simon Corbin, Thomas De-Soza, Marcus Drosson, Antoine
Dechaume, Jose Paulo Moitinho de Almeida, Thomas Pinchard, Corrado Chisari, Axel
Hackbarth, Peter Wainwright, Jiri Hnidek, Thierry Thomas, Konstantinos Poulios,
Laurent Van Miegroet, Shahrokh Ghavamian, Geordie McBain, Jose Paulo Moitinho de
Almeida, Guillaume Demesy, Wendy Merks-Swolfs, Cosmin Stefan Deaconu, Nigel
Nunn, Serban Georgescu, Julien Troufflard, Michele Mocciola, Matthijs Sypkens
Smit, Sauli Ruuska, Romain Boman, Fredrik Ekre, Mark Burton, Max Orok, Paul
Cristini, Isuru Fernando, Jose Paulo Moitinho de Almeida, Sophie Le Bras,
Alberto Escrig, Samy Mukadi, Peter Johnston, Bruno de Sousa Alves, Stefan
Bruens, Luca Verzeroli, Tristan Seidlhofer, Ding Jiaming, Joost Gevaert, Marcus
Calhoun-Lopez, Michel Zou, Sir Sunsheep, Mariano Forti, Walter Steffe, Nico
Schloemer, Simon Tournier, Alexandru Dadalau, Thomas Ulrich, Matthias Diener.

Special thanks to Bill Spitzak, Michael Sweet, Matthias Melcher, Greg Ercolano
and others for the Fast Light Tool Kit on which Gmsh's GUI is based. See
http://www.fltk.org for more info on this excellent object-oriented,
cross-platform toolkit. Special thanks also to EDF for funding the original
OpenCASCADE and MED integration in 2006-2007.

The TetGen/BR code (Mesh/tetgenBR.{cpp,h}) is copyright (c) 2016 Hang Si,
Weierstrass Institute for Applied Analysis and Stochatics. It is relicensed
under the terms of LICENSE.txt for use in Gmsh thanks to a Software License
Agreement between Weierstrass Institute for Applied Analysis and Stochastics and
GMESH SPRL.

The AVL tree code (Common/avl.{cpp,h}) and the YUV image code
(Graphics/gl2yuv.{cpp,h}) are copyright (C) 1988-1993, 1995 The Regents of the
University of California. Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in supporting
documentation, and that the name of the University of California not be used in
advertising or publicity pertaining to distribution of the software without
specific, written prior permission. The University of California makes no
representations about the suitability of this software for any purpose. It is
provided "as is" without express or implied warranty.

The picojson code (Common/picojson.h) is Copyright 2009-2010 Cybozu Labs, Inc.,
Copyright 2011-2014 Kazuho Oku, All rights reserved. Redistribution and use in
source and binary forms, with or without modification, are permitted provided
that the following conditions are met: 1. Redistributions of source code must
retain the above copyright notice, this list of conditions and the following
disclaimer. 2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution. THIS
SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The nanoflann code (Numeric/nanoflann.hpp) is Copyright 2008-2009 Marius Muja,
2008-2009 David G. Lowe, 2011-2016 Jose Luis Blanco. Redistribution and use in
source and binary forms, with or without modification, are permitted provided
that the following conditions are met: 1. Redistributions of source code must
retain the above copyright notice, this list of conditions and the following
disclaimer.  2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.  THIS
SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.

The trackball code (Graphics/Trackball.{cpp.h}) is copyright (C) 1993, 1994,
Silicon Graphics, Inc. ALL RIGHTS RESERVED. Permission to use, copy, modify, and
distribute this software for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that both the
copyright notice and this permission notice appear in supporting documentation,
and that the name of Silicon Graphics, Inc. not be used in advertising or
publicity pertaining to distribution of the software without specific, written
prior permission.

The GIF and PPM routines (Graphics/gl2gif.cpp) are based on code copyright (C)
1989, 1991, Jef Poskanzer. Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in supporting
documentation.  This software is provided "as is" without express or implied
warranty.

The colorbar widget (Fltk/colorbarWindow.cpp) was inspired by code from the
Vis5d program for visualizing five dimensional gridded data sets, copyright (C)
1990-1995, Bill Hibbard, Brian Paul, Dave Santek, and Andre Battaiola.

The libOL code (Common/libol1.{c,h}) is Copyright 2012-2018 - by Loïc Maréchal /
INRIA. This program is a free software. You can redistribute it and/or modify it
under the terms of the MIT License as published by the Open Source Initiative.

The Fast & memory efficient hashtable based on robin hood hashing
(Common/robin_hood.h) is Copyright (c) 2018-2020 Martin Ankerl and is licensed
under the MIT License.

In addition, this version of Gmsh may contain the following contributed,
optional codes in the contrib/ directory, each governed by their own license:

* contrib/ANN copyright (C) 1997-2005 University of Maryland and Sunil Arya and
  David Mount;

* contrib/gmm copyright (C) 2002-2008 Yves Renard;

* contrib/hxt - Copyright (C) 2017-2020 - Universite catholique de Louvain;

* contrib/kbipack copyright (C) 2005 Saku Suuriniemi;

* contrib/MathEx based in part on the work of the SSCILIB Library, copyright (C)
  2000-2003 Sadao Massago;

* contrib/metis written by George Karypis (karypis at cs.umn.edu), copyright (C)
  1995-2013 Regents of the University of Minnesota;

* contrib/mpeg_encode copyright (c) 1995 The Regents of the University of
  California;

* contrib/Netgen copyright (C) 1994-2004 Joachim Sch"oberl;

* contrib/bamg from Freefem++ copyright (C) Frederic Hecht;

* contrib/ALGLIB (C) Sergey Bochkanov (ALGLIB project);

* contrib/blossom copyright (C) 1995-1997 Bill Cook et al.;

* contrib/bamg from Freefem++ copyright (C) Frederic Hecht;

* contrib/voro++ from Voro++ Copyright (c) 2008, The Regents of the University
  of California, through Lawrence Berkeley National Laboratory (subject to
  receipt of any required approvals from the U.S. Dept. of Energy). All rights
  reserved;

* contrib/zipper from MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant -
  version 1.1 64 bits from Mathias Svensson.

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