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 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.

GEOMETRY OPTIONS

       -0  Output model, then exit.

       -tol float
           set geometrical tolerance.

MESH 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.

POST-PROCESSING OPTIONS

       -combine
           combine input views into multi-time-step ones.

DISPLAY OPTIONS

       -n  hide all meshes and post-processing views on startup.

       -fontsize int
           specify the font size for the GUI.

       -display string
           specify display.

OTHER 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.

       -setnumber name value
           set constant number name=value

       -setstring name value
           set constant string name=value

       -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@uliege.be)    and    Jean-Francois    Remacle    (jean-
       francois.remacle@uclouvain.be).

SEE ALSO

       getdp(1),
       Gmsh examples (/usr/share/doc/gmsh),
       Gmsh homepage (https://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.