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)