tetgen(1) A Quality Tetrahedral Mesh Generator


tetgen [-pq__a__AriYMS__T__dzjo_fengGOJBNEFICQVvh] file


This manual page documents briefly the tetgen command. Full documentation is available online: http://tetgen.berlios.de/

tetgen generates the Delaunay tetrahedralization, Voronoi diagram, and convex hull for three-dimensional point sets, generates the constrained Delaunay tetrahedralizations and quality tetrahedral meshes for three-dimensional domains with piecewise linear boundary.


A summary of options is included below. For a complete description, see the online documentation.

Tetrahedralizes a picecwise linear complex (.poly or .smesh file).
Quality mesh generation. A minimum radius-edge ratio may be specifyed (default 2.0).
Applies a maximum tetrahedron volume constraint.
Assigns attributes to identify tetrahedra in certain regions.
Reconstructs/Refines a previously generated mesh.
Suppresses boundary facets/segments splitting.
Inserts a list of additional points into mesh.
Does not merge coplanar facets.
Set a tolerance for coplanar test (default 1e-8).
Detect intersections of PLC facets.
Numbers all output items starting from zero.
Jettison unused vertices from output .node file.
Generates second-order subparametric elements.
Outputs faces (including non-boundary faces) to .face file.
Outputs subsegments to .edge file.
Outputs tetrahedra neighbors to .neigh file.
Outputs mesh to .mesh file for viewing by Medit.
Outputs mesh to .msh file for viewing by Gid.
Outputs mesh to .off file for viewing by Geomview.
Suppresses output of boundary information.
Suppresses output of .node file.
Suppresses output of .ele file.
Suppresses output of .face file.
Suppresses mesh iteration numbers.
Checks the consistency of the final mesh.
Quiet: No terminal output except errors.
Verbose: Detailed information on what I'm doing.
Prints the version information.
Help: A brief instruction for using TetGen.


The wing is described in two files: wing.node and wing.poly. The command line:
  tetgen -pq wing
  generates the quality mesh in three files: wing.1.node, wing.1.ele, and wing.1.face.

Default, the radius-edge ratio of each tetrahedron is bounded below 2.0. You can impose a tight bound by adding a number directly after the '-q' switch. Like this:
  tetgen -pq1.2 wing
  generates a quality mesh which have more points inserted than the mesh created in above.

See http://tetgen.berlios.de/switches.examples.html for more examples.


This manual page was written by Ondrej Certik <[email protected]> for the Debian system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.