/*
 Copyright (C) 2013 Marco Vassallo

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
 Foundation; either version 2 of the License, or (at your option) any later
 version.

 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 details.

 You should have received a copy of the GNU General Public License along with
 this program; if not, see <http://www.gnu.org/licenses/>.
*/

#include "mesh.h"

DEFUN_DLD (fem_get_mesh, args, ,"-*- texinfo -*-\n\
@deftypefn {Function File} {[@var{mesh}]} = \
fem_get_mesh (@var{fem_mesh}) \n\
Return a (p, e, t) representation of @var{fem_mesh}\n\
The @var{mesh_to_read} should be an object created with \
fem_init_mesh().\n\
The output @var{mesh} is a PDE-tool like structure\n\
with matrix fields (p,e,t).\n\
@seealso{fem_init_mesh}\n\
@end deftypefn")
{
  int nargin = args.length ();
  octave_value retval;

  if (nargin < 1 || nargin > 1)
    print_usage ();
  else
    {

      if (! mesh_type_loaded)
        {
          mesh::register_type ();
          mesh_type_loaded = true;
          mlock ();
        }

      if (args(0).type_id () == mesh::static_type_id ())
        {
          const mesh & msh = static_cast<const mesh&> (args(0).get_rep ());
          retval = octave_value (msh.get_pet ());
        }
      else
        error ("fem_get_mesh: the argument is not a mesh type");
    }
  return retval;
}