FEM_MESHING is a MATLAB library which looks at some simple issues in defining a geometric mesh for the finite element method in 2D.
The issues raised here are simple examples that arose during a presentation on finite element meshing. That presentation is available in ../../classes/fem_2011/fem_meshing.pdf.
The computer code and data files made available on this web page are distributed under the GNU LGPL license.
FEM_MESHING is available in a MATLAB version.
DISTMESH, a MATLAB library which carries out triangular or tetrahedral mesh generation, by Per-Olof Persson and Gilbert Strang.
DISTMESH_3D, a MATLAB library which constitutes the 3D subset of distmesh, code for tetrahedral mesh generation, by Per-Olof Persson and Gilbert Strang.
MESH2D, a MATLAB library which can automatically create a triangular mesh for a given polygonal region, by Darren Engwirda.
TRIANGLE, a C program which computes a triangulation of a geometric region, by Jonathan Shewchuk.
TRIANGULATION, a MATLAB library which performs various operations on order 3 ("linear") or order 6 ("quadratic") triangulations.
TRIANGULATION_ORDER3, a dataset directory of TRIANGULATION_ORDER3 files, a linear triangulation of a set of 2D points, using a pair of files to list the node coordinates and the 3 nodes that make up each triangle;
There are various simple scripts to display the mesh.
It is useful to write the P and T data to files, so that they can later be read by a C++ or FORTRAN90 program.
The C++ function "triangle_read" suggests one way to read a triangle file. There is also an example program which shows how the function can be used to read the triangles associated with the ELL region.
The FORTRAN90 routine "triangle_read" suggests one way to read a triangle file. There is also an example program which shows how the function can be used to read the triangles associated with the ELL region.
ELL is the L-shaped region.
STH is the square region with triangular hole.
You can go up one level to the MATLAB source codes.