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/*
Copyright (C) 2013 Marco Vassallo <gedeone-octave@users.sourceforge.net>
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 3 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 "function.h"
#include "mesh.h"
#include "Plot_2d.h"
#include "Plot_3d.h"
DEFUN_DLD (plot, args, , "-*- texinfo -*-\n\
@deftypefn {Function File} \
plot (@var{Mesh}, @var{Nodal_Values}(OPTIONAL))\n\
The input parameter is the mesh and optionally also a vector representing\
the values of a function at each node.\n\
@seealso{Mesh, save}\n\
@end deftypefn")
{
int nargin = args.length ();
octave_value retval;
if (nargin < 1 || nargin > 2)
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 & msho = static_cast<const mesh&> (args(0).get_rep ());
if (nargin == 1)
{
if (!error_state)
{
const boost::shared_ptr<const dolfin::Mesh> & mshd = msho.get_pmsh ();
dolfin::plot (*mshd);
dolfin::interactive ();
retval = 0;
}
}
else if (nargin == 2)
{
Array <double> myu = args(1).array_value ();
if (!error_state)
{
const dolfin::Mesh & mshd = msho.get_msh ();
boost::shared_ptr <const dolfin::FunctionSpace> V;
uint D = mshd.topology ().dim ();
if (D == 2)
{
boost::shared_ptr <const dolfin::FunctionSpace> Vt (new Plot_2d::FunctionSpace (mshd));
V = Vt;
}
else if(D == 3)
{
boost::shared_ptr <const dolfin::FunctionSpace> Vt (new Plot_3d::FunctionSpace (mshd));
V = Vt;
}
else
error ("Plot: The size of the mesh must be 2 or 3");
if (V->dim () != myu.length ())
error ("Plot: The size of the functional space and of the vector must agree");
else
{
dolfin::Vector du(myu.length ());
for (std::size_t i = 0; i < myu.length (); ++i)
du.setitem (i, myu(i));
boost::shared_ptr<dolfin::Vector> uu (new dolfin::Vector(du));
boost::shared_ptr <const dolfin::Function> u (new dolfin::Function(V, uu));
dolfin::plot (*u);
dolfin::interactive ();
retval = 0;
}
}
}
}
}
return retval;
}