gmsh1

Usage

Overview

Gmsh is a 3D finite element mesh 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 flexible visualization capabilities.

Gmsh is built around four modules (geometry, mesh, solver and post-processing), which can be controlled with the graphical user interface, from the command line, using text files written in Gmsh's own scripting language (.geo files), or through the C++, C, Python, Julia and Fortran application programming interface.

Options

-0

Output model, then exit.

-tol float

set geometrical tolerance.

Options

-1, -2, -3

perform 1D, 2D or 3D mesh generation, then exit.

-o file

specify output file name.

-format string

set output mesh format (auto, msh, msh1, msh2, msh4, unv, vrml, stl, mesh, bdf, med, ...).

-bin

use binary format when available.

-saveall

save all elements (discard physical group definitions)

-algo string

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

-parametric

save nodes with their parametric coordinates.

-part int

partition the mesh after batch mesh generation.

-smooth int

set number of mesh smoothing steps.

-order int

set mesh order.

-clscale float

set global mesh element size scaling factor.

-clmin float

set minimum mesh element size.

-clmax float

set maximum mesh element size.

-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.

Options

-combine

combine input views into multi-time-step ones.

Options

-n

hide all meshes and post-processing views on startup.

-fontsize int

specify the font size for the GUI.

-display string

specify display.

Options

-

parse input files, then exit.

-new

create new model before merge next file.

-merge

merge next files.

-open

ppen next files.

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

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

-pid

print pid on stdout.

-listen string

always listen to incoming connection requests on the given socket (a default socket is used if not specified).

-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.