bamg(1rheolef) [debian man page]
bamg(1rheolef) rheolef-6.1 bamg(1rheolef) NAME
bamg - bidimensional anisotropic mesh generator SYNOPSIS
bamg options -g input[.bamgcad] -o ouput[.bamg] EXAMPLE
bamg -g toto.bamgcad -o toto.bamg OUTLINE OF THE COMMANDS
This software can create a mesh from a geometry adapt a mesh from a background mesh using a metric or solution file do smoothing to make quadrilaterals and to split internal edge with 2 boundary vertices in an existing mesh (in this case the metric is use to change the definition of the element's quality). construct just a metric file, if you have an other mesher do the P1 interpolation of the solution on another mesh: CREATE A MESH FROM A GEOMETRY
input file with -g filename (file type DB mesh). output file arguments -oxxxx filename where xxxx is the type of output file (see below for more details). smoothing, quad, utility and other parameters. In addition, metric specication may be prescribed with the help of -M filename argument (file type Metric). All the options are described below. ADAPT A MESH FROM A BACKGROUND MESH USING A METRIC OR SOLUTION FILE
input files -b filename where the suffixe of the file define the type of the file `.amdba', `.am_fmt', `.am', `.ftq', `.nopo' and other- wise the file is a BD mesh file. input `-M filename' (file type Metric) or -MBB filename or -Mbb filename (solution file type BB or bb). metric control parameters, -err val, -errg val,.... output file arguments reqired interpolation, smoothing, quad, utility parameter, and other parameter do smoothing, to make quadrilaterals: and to split internal edge with 2 boundary vertices in an existing mesh (in this case the metric is use to change the definition of the element's quality). input files -r filename(file type DB mesh). -M filename (file type Metric). output file -o filename (file type DB mesh). some other parameter: @table @code -thetaquad val: to create quad with 2 triangles -2: to create the submesh with mesh size h = h/2 -2q: to split all triangles in 3 quad. and to split all quad. in 4 quad. -NbSmooth ival: to change the number of smoothing iteration (3 by default if the metric eld is set with arguments : -M or -Mbb, 0 otherwise. ... @end table construct just a metric file, if you have an other mesher: input files -r filename (file type DB mesh). --Mbb filename or -MBB filename + all the arguments of the metric construction output file -oM filename (file type Metric). do the P1 interpolation of the solution on another mesh: input files -r filename (file type DB mesh). --rBB filename or -rbb filename output file -wBB filename or -wbb filename METRIC COMPUTATIOB OPTIONS
These options are relevant when computing a metric from a scalar field provided in a .bb file. Notice that, when providing a tensor metric in the .bb file, the metric computation is not performed and these options are not relevent. -RelError compute the metric with a relative error. This is the default. -CutOff float the cut-off value used for the relative error criteria. Default value is 1e-5. -AbsError compute the metric with a relative error rheolef-6.1 rheolef-6.1 bamg(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
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