gmsh man page

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

Synopsis

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

Description

Gmsh is a 3D finite element grid generator with a build-in CAD engine and post-processor. Its design goal is to provide a fast, light and user-friendly meshing tool 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, fea).

-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.

-check

perform various consistency checks on 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://gmsh.info).

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.

Referenced By

getdp(1).

17 July 2015 2.10 Gmsh Manual Pages