Re: Mesh generation in 2D
- To: mathgroup at smc.vnet.net
- Subject: [mg44694] Re: Mesh generation in 2D
- From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig-de>
- Date: Fri, 21 Nov 2003 05:13:17 -0500 (EST)
- Organization: Uni Leipzig
- References: <bphu5i$1nn$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, http://www.andrew.cmu.edu/user/sowen/softsurv.html http://www-2.cs.cmu.edu/afs/cs.cmu.edu/project/quake/public/www/triangle.html and the commandline tools can be used with Matheaticas Run[] command. Regards Jens "Goyder Dr HGD" <H.Goyder at rmcs.cranfield.ac.uk> schrieb im Newsbeitrag news:bphu5i$1nn$1 at smc.vnet.net... > Dear MathGroup, > > What is the best way to generate a mesh of triangles for a 2D grid on a > general nonconvex region? > > I know that in version 4.2 there is a computational geometry add-on and that > there is a package for polygon triangulation at > http://library.wolfram.com/packages/polygontriangulation/ by Martin Kraus > and also there is the book and packages by Tom Wickham-Jones > http://library.wolfram.com/infocenter/Books/3753/ . However, I cannot find a > procedure for putting this altogether to make a triangular mesh. > > What I am looking for is: > > 1. The ability to put grid nodes in a general nonconvex region so that the > triangles are all about the same size and the triangles are as close as > possible to equilateral. > > 2. The ability to weight the size of the triangles so that I can put more > grid where it is needed. > > 3. The ability to enforce lines within the region (not necessarily straight) > so that I can have barriers with no thickness. > > 4. Everything implemented in Mathematica. > > Has this all been done or am I asking for the impossible? > > Thanks for your comments. > > Hugh Goyder > > > -- > This message has been scanned for viruses and > dangerous content by the Cranfield MailScanner, and is > believed to be clean. >