mkgeo_ball(1rheolef) [debian man page]
mkgeo_ball(1rheolef) rheolef-6.1 mkgeo_ball(1rheolef) NAME
mkgeo_ball -- build an unstructured mesh of an ellipsoid, in 2d or 3d SYNOPSIS
mkgeo_ball options [n] EXAMPLE
The following command build a triangle based 2d unstructured mesh of the unit ball mkgeo_ball -t 10 > ball-10.geo geo -mayavi ball-10.geo or in one comand line: mkgeo_ball -t 10 | geo -mayavi - DESCRIPTION
This command is usefull when testing programs on simple geometries. Invocation is similar to mkgeo_grid (see mkgeo_grid(1), mkgeo_ugrid(1)). It calls gmsh as unstructured mesh generator. It avoid the preparation of an input file for a mesh generator. The optional n argument is an integer that specifies the subdivision in each direction. By default n=10. The mesh files goes on standard out- put. ELEMENT TYPE OPTIONS
-t 2d mesh using triangles. -q 2d mesh using quadrangles. -tq 2d mesh using both triangles and quadrangles. THE MESH ORDER
-order int The polynomial pproximation mesh order, for the curved boundary, as defined by gmsh. Defualt is order=1. THE GEOMETRY
The geometry can be ellipse/ellipsoid inscribted in the [a,b]x[c,d] rectangle or the [a,b]x[c,d]x[f,g] parallelotope. By default a=c=f=-1 and b=d=g=1, thus, the unit balls are considered. -s Only a surface mesh is generated: a curved line in 2d or a curved surface mesh in 3d. In 3d, supports both '-t' and '-q' options. -a float -b float -c float -d float -f float -g float BOUNDARY DOMAINS
The meshes defines a domain named boundary that groups all boundary sides. OTHERS OPTIONS
-fix -nofix By default, internal face and volume node from gmsh are recomputed, since they have incorrect coordinate that destroy the conver- gence properties of isoparametric high order elements (order >= 3). The -nofix option skip this correction: this option is avail- able for test purpose. -clean clear temporary files (this is the default). -noclean does not clear temporary files. -verbose -noverbose print intermediate commands and information messages. SEE ALSO
mkgeo_grid(1), mkgeo_ugrid(1) rheolef-6.1 rheolef-6.1 mkgeo_ball(1rheolef)
Check Out this Related Man Page
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)