msh2geo(1rheolef) [debian man page]
msh2geo(1rheolef) rheolef-6.1 msh2geo(1rheolef) NAME
msh2geo - convert gmsh mesh in geo format SYNOPSIS
msh2geo [-zr|-rz] input[.msh] > output.geo DESCRIPTION
Convert a gmsh `.msh' into `.geo' one. The output goes to standart output. See the gmsh documentation for a detailed description of the `.mshcad' input file for gmsh. EXAMPLES
gmsh -2 toto.mshcad -o toto.msh msh2geo toto.msh > toto.geo gmsh -2 -order 2 toto.mshcad -o toto2.msh msh2geo toto2.msh > toto2.geo COORDINATE SYSTEM OPTION
Most of rheolef codes are coordinate-system independant. The coordinate system is specified in the geometry file `.geo'. -zr -rz the 2d mesh is axisymmetric: zr (resp. rz) stands when the symmetry is related to the first (resp. second) coordinate. NOTES
Pk triangle, when k>=5, may have internal nodes renumbered: from the GMSH DOCUMENTATION
The nodes of a curved element are numbered in the following order: the element principal vertices; the internal nodes for each edge; the internal nodes for each face; the volume internal nodes. The numbering for face and volume internal nodes is recursive, i.e., the numbering follows that of the nodes of an embedded face/volume. The higher order nodes are assumed to be equispaced on the element. In rheolef, internal triangle nodes are numbered from left to right and then from bottom to top. The numbering differ for triangle when k >= 5. Thus, msh2geo fix the corresponding internal nodes numbering during the conversion. Pk tetrahedrons and hexaedrons in gmsh and rheolef has not the same edge-node order nd orientation. E.g. for tetrahedrons, edges 13 and 23 should be swaped and reoriented as 32 and 31. Thus, msh2geo fix the corresponding internal nodes numbering. TODO
Fix for P3-tetra: swap edges orientations for 3,4,5 and swap faces 1 and 2. Check P4(T) for face orientation. Perform face visualisation with gnuplot face fill. See also hexa edges orient and faces numbers and orient. Check that node are numbered by vertex-node, then edge-node, then face(tri,qua)-node and then volume(T,P,H)-node. Otherwise, renumber all nodes. Support for high order >= 6 element ? not documented in gmsh, but gmsh supports it at run rheolef-6.1 rheolef-6.1 msh2geo(1rheolef)
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geo(1rheolef) rheolef-6.1 geo(1rheolef) NAME
geo - plot a finite element mesh SYNOPSIS
geo options mesh[.geo[.gz]] DESCRIPTION
Plot or upgrade a finite element mesh. EXAMPLES
Plot a mesh: geo square.geo geo box.geo geo box.geo -full Plot a mesh into a file: geo square.geo -image-format png Convert from a old geo file format to the new one: geo -upgrade - < square-old.geo > square.geo See below for the geo file format scpecification. The old file format does not contains edges and faces connectivity in 3d geometries, or edges connectivity in 2d geometries. The converter add it automatically into the upgraded file format. Conversely, the old file format is usefull when combined with a translator from another file format that do not provides edges and faces connectivity. INPUT FILE SPECIFICATION
filename specifies the name of the file containing the input mesh. The ".geo" suffix extension is assumed. - read mesh on standard input instead on a file. -name when mesh comes from standard input, the mesh name is not known and is set to "output" by default. This option allows to change this default. Useful when dealing with output formats (graphic, format conversion) that creates auxilliary files, based on this name. -Idir -I dir Add dir to the rheolef file search path. This mechanism initializes a search path given by the environment variable `RHEOPATH'. If the environment variable `RHEOPATH' is not set, the default value is the current directory. -check Check that element orientation is positive. INPUT FORMAT OPTIONS
-if format -input-format format load mesh in format file format, instead of plotting it. Supported output formats are: geo, bamg, vtk. When loading from a file, the corresponding suffix extension is assumed. RENDER SPECIFICATION
-gnuplot use gnuplot tool. This is the default. -mayavi use mayavi tool. RENDER OPTIONS
-lattice -nolattice When using a high order geometry, the lattice inside any element appears. Default is on; -subdivide int When using a high order geometry, the number of points per edge used to draw a curved element. Default value is the mesh order. -full -nofull All internal edges appears, for 3d meshes. Default is off; -fill -nofill Fill mesh faces using light effects, when available. -stereo -[no]stereo Rendering mode suitable for red-blue anaglyph 3D stereoscopic glasses. Option only available with mayavi. -cut -nocut cut by plane and clip (with mayavi only). OUTPUT FILE FORMAT OPTIONS
-geo output mesh on standard output stream in geo text file format, instead of plotting it. -upgrade Convert from a old geo file format to the new one. -gmsh output mesh on standard output stream in gmsh text file format, instead of plotting it. -image-format string The argument is any valid image format, such as bitmap png, jpg, gif or vectorial ps or pdf image file formats, and that could be handled by the corresponding render. The output file is e.g. `@emph{basename'.png} when @emph{basename} is the name of the mesh, or can be set with the -name option. OTHERS OPTIONS
-add-boundary check for a domain named "boundary"; If this domain does not exists, extract the boundary of the geometry and append it to the domain list. This command is usefull for mesh converted from generators, as bamg, that cannot have more than one domain specifica- tion per boundary edge. -verbose print messages related to graphic files created and command system calls (this is the default). -noverbose does not print previous messages. -clean clear temporary graphic files (this is the default). -noclean does not clear temporary graphic files. -execute execute graphic command (this is the default). -noexecute does not execute graphic command. Generates only graphic files. This is usefull in conjuction with the "-noclean" command. -check -dump used for debug purpose. INQUIRE OPTIONS
-min-element-measure -max-element-measure print the smallest (resp. largest) element measure and then exit. GEO FILE FORMAT
TODO rheolef-6.1 rheolef-6.1 geo(1rheolef)