Mercurial > fem-fenics-eugenio
view src/SubSpace.cc @ 213:d4eef566511b
Extend feval function to support also passing the coordinates separately
as multiple arguments and evaluating the function at multiple
points at once. Author: Daniel Kraft
author | gedeone-octave <marcovass89@hotmail.it> |
---|---|
date | Tue, 04 Mar 2014 12:19:04 +0000 |
parents | 66071811eef8 |
children | 5e9b5bbdc56b |
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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 "functionspace.h" DEFUN_DLD (SubSpace, args, , "-*- texinfo -*-\n\ @deftypefn {Function File} {[@var{V1}]} = \ SubSpace (@var{V}, @var{index}) \n\ Extract a SubSpace from an object of type FunctionSpace. \n\ The input arguments are\n\ @itemize @bullet\n\ @item @var{V} which is a FunctionalSpace\n\ @item @var{index} is a positive integer number which represents the SubSpace \ which has to be extracted.\n\ @end itemize \n\ The output @var{V1} is the SubSpace needed.\n\ @seealso{FunctionSpace}\n\ @end deftypefn") { int nargin = args.length (); octave_value retval; if (nargin < 2 || nargin > 2) print_usage (); else { if (! functionspace_type_loaded) { functionspace::register_type (); functionspace_type_loaded = true; mlock (); } if (args(0).type_id () == functionspace::static_type_id ()) { const functionspace & fspo = static_cast<const functionspace&> (args(0).get_rep ()); const octave_idx_type idx = args(1).int_value (); if (! error_state) { const dolfin::FunctionSpace & V = fspo.get_fsp (); if (idx < 1 || idx > V.dim ()) error ("SubSpace: index out of bounds"); else { boost::shared_ptr <const dolfin::FunctionSpace> g (new dolfin::SubSpace (V, idx - 1)); retval = new functionspace (g); } } } } return retval; }