---
name: "bamg2geo"
section: "1rheolef"
platform: "linux"
package: "rheolef"
version: "7.2-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/bamg2geo"
---

# bamg2geo(1rheolef)

convert bamg mesh in geo format (rheolef-7.2)

## NAME

bamg2geo - convert bamg mesh in geo format (rheolef-7.2)

## SYNOPSIS

```
bamg2geo [options] file[.bamg] file[.dmn]
```

## DESCRIPTION

Convert a `.bamg` file into a `.geo` one. The output goes to standard output. The `.dmn` file specifies the domain names, since the `bamg` mesh generator uses numbers as domain labels instead of names. When no files are provided, the standard input is used.

## EXAMPLES

```
    bamg -g toto.bamgcad -o toto.bamg
    bamg2geo toto.bamg toto.dmn > toto.geo
```

## THE BAMG CAD FILE

The `.bamgcad` file describes the boundary of the mesh geometry. Here is a basic example:

```
    MeshVersionFormatted
      0
    Dimension
      2
    Vertices
      4
      0  0     1
      1  0     2
      1  1     3
      0  1     4
    Edges
      4
      1  2     101
      2  3     102
      3  4     103
      4  1     104
    hVertices
      0.1 0.1 0.1 0.1
```

 See **bamg(1)** .

## DOMAIN NAME FILE

The `.dmn` file defines the boundary domain names used by Rheolef, since `bamg` uses numeric labels for domains. Here is an example:

```
    EdgeDomainNames
      4
      bottom
      right
      top
      left
```

 The domain name file can also specify additional vertices domain:

```
    EdgeDomainNames
      4
      bottom
      right
      top
      left
    VertexDomainNames
      4
      left_bottom
      right_bottom
      right_top
      left_top
```

 Vertex domain names are useful for some special boundary conditions.

## OPTIONS

- `-cartesian` `-rz` `-zr`

   Specifies the coordinate system. The default is `cartesian` while `-rz` and `-zr` denotes some axisymmetric coordinate systems. Recall that most of Rheolef codes are coordinate-system independent and the coordinate system is specified in the geometry file `.geo`.

## IMPLEMENTATION

This documentation has been generated from file main/sbin/bamg2geo.cc

## AUTHOR

Pierre  Saramito  \<Pierre.Saramito@imag.fr\>

## COPYRIGHT

Copyright   (C)  2000-2018  Pierre  Saramito  \<Pierre.Saramito@imag.fr\> GPLv3+: GNU GPL version 3 or later  \<http://gnu.org/licenses/gpl.html\>. This  is  free  software:  you  are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.