[Gmsh] [Freefempp] Import a 2D mesh
cgeuzaine at ulg.ac.be
Thu Sep 3 12:08:06 CEST 2009
Geordie McBain wrote:
> On Thu, Sep 3, 2009 at 5:56 AM, Christophe Geuzaine<cgeuzaine at ulg.ac.be> wrote:
>> Indeed, that should be easy. Currently we only save "Triangles",
>> "Quadrilaterals" and "Tetrahedra" in the MESH format. Is the format for the
>> edges similar? (What is the label?)
>>From Frey (2001, p. 33, Section 7.2.1 `The mesh format', which I take
> to be the specification), the Edges block does look very much like the
> Vertices, Triangles, Quadrilaterals, and Tetrahedra blocks, viz.:
> <e11> <e21> <ref1>
> <e12> <e22> <ref2>
> <e1n> <e2n> <refn>
> where <n> is the number of edges, <e1i> and <e2i> are the identifiers
> of the terminal vertices of the i-th edge, and refi is its reference
> label. (I suppose ultimately the latter should be the identifier of
Thanks for the explanation : we've just added this to the MESH writer.
> the Physical Line, but for present consistency with the triangles it
> should probably be the identifier of the elementary geometric identity
> - this was discussed 31 July - 17 Aug. on the Gmsh list in the thread
> `New Mesh.BdfElementPID Option'.)
Give tomorrow's nightly build a try: you should be able to save edges
with either elementary, physical or parition tags.
> Frey, P. J. (2001). MEDIT: An interactive mesh visualization software.
> Technical Report 253, INRIA, Rocquencourt.
> (PDF freely available from http://hal.inria.fr/inria-00069921/fr.)
> gmsh mailing list
> gmsh at geuz.org
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
More information about the gmsh