[Gmsh] gmsh and deal.ii

[Vijay S. Mahadevan]

It might be appropriate to send this to the Deal.II mailing list since
the exception is specific to their parser/mesh data structures. Also,
try to replicate the problem with a small mesh and attach the test
case if you want some quick help. Without any idea about your geometry
or the meshing options you used, this will be hard to debug over
email.

Also I noticed that you said Gmsh v1.0 ?? You should really update to
the latest version.

Vijay

On Wed, Sep 14, 2011 at 12:25 PM, Javier Munoz <josejmcriollo at gmail.com> wrote:
> I'm trying import into deal.ii a mesh generated with Gmsh. The only thing I know
> is that deal.ii doesn't accept triangular elements from imported files.
>
> I construct my grid in Gmsh and at the end I use the command 'Recombine Surface'
> to recombine the triangular elements into quads. I save the file in Gmsh V1.0
> and I make sure that all the elements were quads, i.e. all element types were 3
> (4 node quadrangle).
>
> Then, when I tried to import the mesh into deal.ii and it gave the error:
>
> terminate called after throwing an instance of
> 'dealii::StandardExceptions::ExcInternalError'
>  what():  --------------------------------------------------------
> An error occurred in line <642> of file
> </home/zerpiko/FEM/deal.II/source/grid/grid_reordering.cc> in function static
> void dealii::GridReordering<dim,
> spacedim>::invert_all_cells_of_negative_grid(const
> std::vector<dealii::Point<spacedim> >&, std::vector<dealii::CellData<dim> >&)
> [with int dim = 2, int spacedim = 2]
> The violated condition was:
>    n_negative_cells==0 || n_negative_cells==cells.size()
> The name and call sequence of the exception was:
>    ExcInternalError()
> Additional Information:
> (none)
> --------------------------------------------------------
>
> I'm not sure what was my mistake. Any clue?
>
>
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