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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title> QMG 2.0 home page </title></head><body BGCOLOR="#E0FFE0" TEXT="#000000" LINK = "#0080C0" VLINK = "#004060" ALINK = "#FF0000" ><center><table><tr><td><img src=logo1.jpg alt="QMG logo"> </td><td><table><tr><td><font size="10"><strong>QMG 2.0 </strong></font></td></tr><tr><td><h1>Home Page</h1></td></tr></table></td></tr></table></center>The QMG package generates finite element meshes in two andthree dimensions. QMG is free software distributed at the source-codelevel. Although QMG is free, it is copyrighted by Cornell University.The package includes some geometric modeling software, the mesh generator itself, and an elementaryfinite element solver. The software is written in C++, Tcl/Tk andMatlab. The author of most of QMG is S. Vavasis. QMG runs on several Unix platformsand on Intel-based PC's under Windows NT.<p>The software includes test cases with graphics to illustrateits features.<p>The mesh generator is a quadtree/octreealgorithm due to S. Mitchell and S. Vavasis.<hr><p>Please select a topic from the following list.<ul><li><font size=5><a href="example.html">An overview and twoexamples of the QMG package</a></font><li><font size=5><a href="installation.html">Installation instructions</a></font><li><font size=5><a href="geom.html">Geometric objects and datatypes</a></font><li><font size=5><a href="meshgen.html">The mesh generator</a></font><li><font size=5><a href="fe.html">The finite element package</a></font><li><font size=5><a href="graphics.html">Graphics in QMG</a></font><li><font size=5><a href="ref.html">Reference on each function</a></font></ul>The following pages cover subtopics of the above major topics:<ul><li><a href="standalone.html">Using QMG via shell commands</a><li><a href="upgrade.html">Differences between QMG 1.1 and QMG 2.0</a><li><a href="userfunc.html">Specifying user-defined functions</a><li><a href="tclsyntax.html">Brief synopsis of Tcl syntax</a><li><a href="source.html">Notes on the source code</a><li><a href="copyright.html">Copyright and license of QMG</a></ul><hr><p><h2><a name="acknowledge">Acknowledgements</a></h2>My colleague Paul Chew gave me advice on computational geometry. Mycolleague Brian Smith introduced me to Tcl/Tk. This softwarewould not exist without the collaborative research effortwith Scott Mitchell to develop the underlying algorithm.<p>Work on QMG 1.0 was supported by the Division of Advanced Scientific Computingof the National Science Foundation through a Presidential Young Investigatorgrant. Matching funds were received from Xerox, AT&T, Tektronix,IBM, and Sun Microsystems (not all during the same year).<p>Development of the Windows versions of QMG was supported bygrants from Microsoft and Intel.<p>Support from Argonne National Laboratory for work on QMG 1.1 is gratefully acknowledged. QMG 1.1 was also developedwith support from the National Science Foundation at Cornell.<p>Support for QMG 2.0 was received from the <a href="http://www.nsf.gov/">National Science Foundation</a>through the grand-challenge grant “<a href="http://www.tc.cornell.edu/Research/CrackProp/">Crack Propagation on TeraflopComputers</a>,” grant numberEIA-9726388.Any opinions, findings, and conclusions or recommendations expressedin this material are those of the author(s) and do not necessarilyreflect the views of the National Science Foundation.Part of the work on QMG 2.0 was done while the author was visitingBell Laboratories (Lucent Technologies).<p>Helpful advice and suggestions received fromother members of the project including Bruce Carter,Dave Chen,Paul Chew,Nikos Chrisochoides,Gerd Heber,Anthony Ingraffea, Roland Krause,Keshav Pingali, Chris Myers, Dave Schneider,Paul Stodghilland Wash Wawrzynek.Chris Myers and Wash Wawrzynek also wrote part of thedata structure definition.<p>− Steve Vavasis<hr><p>This documentation is written by <a href="http://www.cs.cornell.edu/home/vavasis/vavasis.html">Stephen A. Vavasis</a> and iscopyright ©1999 by <a href="http://www.info.cornell.edu/CUHomePage.html">Cornell University</a>.Permission to reproduce this documentation is granted provided thisnotice remains attached. There is no warranty of any kind onthis software or its documentation. See the accompanying file<a href="copyright.html">'copyright'</a>for a full statement of the copyright.<p><a href="http://www.cs.cornell.edu/home/vavasis/qmg-home.html">Back toVavasis's mesh generation home page.</a><p><address>Stephen A. Vavasis, Computer Science Department, Cornell University,Ithaca, NY 14853, vavasis@cs.cornell.edu</address></body></html>?? 快捷鍵說明
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