[Gmsh] how to load a pre-defined 2D mesh

[Romain Quey]

Hello,

I want to mesh volumes with pre-defined 2D-meshes on some of their
faces, but it doesn't work ...

Please find attached a simple example based on a cube:
'cube.geo' first defines 5 of the faces, then load the mesh
of the 6th one (from file 'z1.msh', obtained from 'z1.geo')
and finally defines the volume ...

When I run the 3D meshing (Netgen algorithm), Gmsh returns:
Info    : 'gmsh -3 cube.geo ' started on Thu Feb 16 16:34:07 2006
Info    : Parsing file 'cube.geo'
Info    : Reading mesh file 'z1.msh'
Info    : Detected mesh file format 2
Info    : 134 nodes
Info    : 266 elements
Info    : Read mesh file 'z1.msh'
Info    : Parsed file 'cube.geo'
Info    : Mesh 3D...
Info    : Meshing volume 1
Info    : CalcLocalH: 134 Points 0 Elements 230 Surface Elements
Info    : Check subdomain 1 / 1
Info    : 230 open elements
Fatal   : ERROR: Edge 2 - 5 multiple times in surface mesh
Aborted

Where am I wrong?

Thank you for your help ... and for Gmsh too!

--
Romain QUEY
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