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,  in ASCII text files using Gmsh's own scripting language (.geo
       files), or using the C++, C, Python or Julia Application Programming Interface (API).

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.