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 otherwise 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 RELATED TO QUADRILATERALS

       -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.

       ...

CONSTRUCT JUST A METRIC FILE

       e.g. 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