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gmsh

NAME

Gmsh - 3D finite element mesh generator with built-in CAD engine and post-processor

SYNOPSIS

gmsh [file(s)] [option(s)]

DESCRIPTION

Gmsh is an automatic three-dimensional finite element mesh generator with build-in CAD and post-processing facilities. Its design goal is to provide a simple meshing tool for academic problems with parametric input and advanced visualization capabilities.

Gmsh is built around four modules: geometry, mesh, solver and post-processing. The specification of any input to these modules is done either interactively using the graphical user interface or in ASCII text files using Gmsh's own scripting language.

GEOMETRY OPTIONS

-0

parse all input files, output unrolled geometry, and exit.

-tol float

set geometrical tolerance.

MESH OPTIONS

-1

perform the one-dimensional mesh, i.e., discretize all the curves in the geometry.

-2

perform the two-dimensional mesh, i.e., discretize all the surfaces in the geometry.

-3

perform the three-dimensional mesh, i.e., discretize all the volumes in the geometry.

-part int

partition the mesh after batch mesh generation.

-saveall

save all elements (and discard all physical group definitions).

-o file

specify mesh output file name.

-format string

set output mesh format (msh, msh1, msh2, unv, vrml, stl, mesh, bdf, p3d, cgns, med).

-bin

use binary format when available.

-algo string

select mesh algorithm (meshadapt, del2d, front2d, del3d, front3d).

-smooth int

set number of mesh smoothing steps.

-optimize[_netgen]

optimize quality of tetrahedral elements.

-order int

set mesh order.

-clscale float

set global scaling factor to the mesh characteristic lengths in the model.

-clmin float

Set minimum characteristic length.

-clmax float

Set maximum characteristic length. -clcurv Compute characteristic lengths from curvatures.

-rand float

set random perturbation factor.

-bgm file

load the post-processing view in file as the current background mesh.

POST-PROCESSING OPTIONS

-noview

hide all views at startup.

-link int

choose link mode between post-processing views (0, 1, 2, 3, 4).

-combine

combine input views into multi-time-step ones.

DISPLAY OPTIONS

-nodb

suppress the double buffer. Use this options if you use Gmsh on a remote host without GLX.

-fontsize int

specify the font size for the GUI.

-theme string

specify the FLTK GUI scheme.

-display string

specify display.

OTHER OPTIONS

-

parse input files, then exit.

-a, -g, -m, -s, -p

start in automatic, geometry, mesh, solver or post-processing mode.

-pid

print pid on stdout.

-listen

always listen to incoming connection requests.

-v int

set verbosity level.

-nopopup

don't popup dialog windows in scripts.

-string string

parse option string at startup.

-option file

parse option file at startup.

-convert files

Convert files into latest binary formats, then exit.

-version

show version number.

-info

show detailed version information.

-help

show help message.

AUTHORS

Christophe Geuzaine (cgeuzaine@ulg.ac.be) and Jean-Francois Remacle (jean-francois.remacle@uclouvain.be).

SEE ALSO

getdp(1),
Gmsh examples (/usr/share/doc/gmsh-*/),
Gmsh homepage (http://www.geuz.org/gmsh/).

The full documentation for Gmsh is maintained as a Texinfo manual. If the info and gmsh programs are properly installed at your site, the command

info gmsh

should give you access to the complete manual.