## Section:
Software2>
`MMG3D` 3>

`MMG3D`3>

Participants : Cécile Dobrzynski [corresponding member] , Algiane Froehly.

`MMG3D` is a tetrahedral fully automatic remesher. Starting from a
tetrahedral mesh, it produces quasi-uniform meshes with respect to a
metric tensor field. This tensor prescribes a length and a direction
for the edges, so that the resulting meshes will be anisotropic.
The software is based on local mesh modifications and an anisotropic
version of Delaunay kernel is implemented to insert vertices in the
mesh. Moreover, `MMG3D` allows one to deal with rigid body motion and
moving meshes. When a displacement is prescribed on a part of the
boundary, a final mesh is generated such that the surface points will be
moved according this displacement. `MMG3D` is used in particular in GAMMA
for their mesh adaptation developments, but also at EPFL (maths
department), Dassault Aviation, Lemma (a french SME), etc. `MMG3D` can
be used in `FreeFem++` (http://www.freefem.org ), a free
software which eases the solving of PDEs and in Gmsh (http://geuz.org/gmsh/ ).
More details can be found on
http://www.math.u-bordeaux1.fr/~dobj/logiciels/mmg3d.php .

A new version of `MMG3D` is under development. The big novelty of this
version is the modification of the surface triangulation. A. Froehly,
ingenieer in the FUI Rodin, is working on this new version.