TET_MESH_VOLUMES
Compute Tetrahedral Volumes in a Tet Mesh


TET_MESH_VOLUMES, a C++ code which computes the volume of every tetrahedron in a tet mesh.

Usage:

tet_mesh_volume prefix
where prefix is the common file prefix:

The element definition file will list node indices. In C++, it may be more natural to use 0-based indices. This program will accept an element definition file that is 0-based or 1-based, and will convert a 1-based input file so that it becomes 0-based internal to the program. The detection of 1-based data is determined by the absence of the use of a 0 index, and the use of an index equal to the number of nodes. This is an implicit and fallible, but reasonable, way to handle this problem.

Licensing:

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

Languages:

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

Related Data and Programs:

TET_MESH, a C++ library which carries out various operations on tetrahedral meshes.

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

TET_MESH_DISPLAY_OPENGL, a C++ program which reads a 3D tet mesh and displays the nodes and edges using OpenGL.

TET_MESH_L2Q, a C++ program which reads information about a 4-node (linear) tet mesh and creates data defining a corresponding 10-node (quadratic) tet mesh;

TET_MESH_ORDER4, a data directory which contains a description of a linear tet mesh of a set of 3D points, using a pair of files to list the node coordinates and the 4 nodes that make up each tetrahedron;

TET_MESH_ORDER4, a dataset directory which contains examples of order 4 tetrahedral meshes.

TET_MESH_ORDER10, a data directory which contains a description of a quadratic tet mesh of a set of 3D points, using a pair of files to list the node coordinates and the 10 nodes that make up each tetrahedron;

TET_MESH_ORDER10, a dataset directory which contains examples of order 10 tetrahedral meshes.

TET_MESH_Q2L, a C++ program which reads information about a 10-node (quadratic) tet mesh and creates data defining a corresponding 4-node (linear) tet mesh;

TET_MESH_QUALITY, a C++ program which computes quality measures of a tetrahedral mesh.

TET_MESH_RCM, a C++ program which computes the reverse Cuthill-McKee reordering for the nodes of a tet mesh that uses 4-node or 10-node tetrahedrons;

TET_MESH_REFINE, a C++ program which refines a tet mesh;

TET_MESH_TET_NEIGHBORS, a data directory which contains examples of TET_MESH_TET_NEIGHBOR files, description of a format for tetrahedron adjacency information in a tetrahedral mesh of 3D points;

TET_MESH_TET_NEIGHBORS, a C++ program which reads information about a tet mesh and writes out a list of the tetrahedrons that are adjacent to a given tetrahedron;

tet_mesh_volumes_test

Source Code:


Last revised on 29 April 2020.