- a conformal mesh at the medit file format (.mesh(b) extension) or at the gmsh file format (.msh(b) extension)
Note that the gmsh software handles a lot of mesh file formats, thus, you can use it to convert your mesh at the medit format :
Save As -> Mesh - INRIA Medit (*.mesh)
If you use the medit file format, you can provide:
- a size map at medit solution file format (.sol extension) if you want to adapt your mesh to a size map.
- a level-set map at medit solution file format (.sol extension) if you want to discretize an isovalue of a function.
If you use the gmsh file format:
- the size map or level-set map must be provided in the .msh(b) file as $NodeData and flagged using a string tag with the :metric suffix.
- there is a non-compatibility between the .mesh format used by mmg2d (coordinates in 2D) and the gmsh output (coordinates in 3D):
- To force mmg2d to produce a .mesh file readable by Gmsh (not anymore compatible with Medit) you can run mmg2d with the -msh 1 command line argument.
- To load a 2D .mesh file created with Gmsh, you will need to run mmg2d with the -msh 2 command line argument. In this case, the .mesh file produced by mmg2d is a Gmsh .mesh.
Remark: you must provide positive or null integers for the entities references.