fem_to_mesh


fem_to_mesh, a FORTRAN90 code which reads a pair of FEM files defining the node coordinates and elements of a finite element mesh, and rewrites the data as a MESH file.

The code can convert 2D meshes of triangles, or 3D meshes of tetrahedrons.

Usage:

fem_to_mesh prefix
where prefix is the file name prefix, so that:

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

fem_to_mesh is available in a C++ version and a FORTRAN90 version and a MATLAB version.

Related Data and codes:

fem_to_mesh, a FORTRAN90 code which reads a set of FEM files defining the node coordinates, boundary nodes, and elements of a finite element mesh, and rewrites the data as a MESH file.

fem_to_mesh_test

FEM2D, a data directory which contains examples of 2D FEM files, text files that describe a 2D finite element geometry and associated nodal values;

FEM3D, a data directory which contains examples of 3D FEM files, three text files that describe a 3D finite element geometry and associated nodal values.

MESH, a data directory which contains examples of MESH files, which can be used to define the geometry of a finite element mesh in 2D or 3D, using triangles, quadrilaterals, tetrahedrons or hexahedrons.

TET_MESH_BOUNDARY, a FORTRAN90 code which returns the nodes and faces of the boundary of a tetrahedral mesh, which themselves form a 3D triangular mesh or "TRI_SURFACE".

TRIANGULATION_BOUNDARY_NODES, a FORTRAN90 code which reads data defining a triangulation, determines which nodes lie on the boundary, and writes their coordinates to a file.

Reference:

  1. Pascal Frey,
    MEDIT: An interactive mesh visualization software,
    Technical Report RT-0253,
    Institut National de Recherche en Informatique et en Automatique,
    03 December 2001.

Source Code:

ELL is a 2D L-shaped region, with a grid of 65 nodes and 96 elements of order 3 triangles.

P01 is 3D FEM data for a rectangular channel of dimensions 3x1x1 physical units, using 584 nodes and 2568 tetrahedral elements.


Last revised on 07 July 2020.