[Gmsh] Medit file format
gdmcbain at freeshell.org
Thu May 6 01:53:37 CEST 2010
2010/5/5 Christophe Geuzaine <cgeuzaine at ulg.ac.be>:
> Indeed, we do not read/write prisms or hexas in MEDIT format. If you know
> the correct vertex ordering in that format please let us know: we'll be
> happy to extend the routines to take thse kinds of elements into account.
Yes, I see the issue. The document I take to be the specification for
MEDIT is Section 7.2.1 `The mesh format' of
Frey, P. J. (2001). MEDIT: An interactive mesh visualization software.
Technical Report 253, INRIA, Rocquencourt.
but it does not specify the vertex ordering; obviously this is
unsatisfactory, and I presume all other programs using the MEDIT .mesh
format will make some assumption for each element. For example,
FreeFem++ agrees with Gmsh for the elements it uses: Edges, Triangles,
Actually, Frey (2001, Section 7.2.1) only defines Vertices, Edges,
Triangles, Quadrilaterals, Tetrahedra, and Hexaedra [so spelled];
prisms aren't mentioned. Are there any applications out there
anticipating MEDIT prisms?
There is another document (in French):
but I don't think it gives the vertex ordering either (though my
French is very limited). It doesn't have prisms.
I'll write Pascal Frey and ask him about the vertex ordering of