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PROGRAM:

NAME


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 ([email protected]) and Jean-Francois Remacle (jean-
[email protected]).

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