const_fem_function.h
Go to the documentation of this file.
1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2014 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3 
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License, or (at your option) any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
13 
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 
18 #ifndef LIBMESH_CONST_FEM_FUNCTION_H
19 #define LIBMESH_CONST_FEM_FUNCTION_H
20 
21 #include <string>
22 
23 #include "libmesh/dense_vector.h"
25 #include "libmesh/point.h"
26 
27 namespace libMesh {
28 
29 template <typename Output=Number>
30 class ConstFEMFunction : public FEMFunctionBase<Output>
31 {
32 public:
33  ConstFEMFunction (const Output c) {_c = c;}
34 
36 
38  {return AutoPtr<FEMFunctionBase<Output> >( new ConstFEMFunction(*this) ); }
39 
40  virtual Output operator() (const FEMContext&, const Point&,
41  const Real /* time */ = 0.)
42  { return _c; }
43 
44  virtual void operator() (const FEMContext&, const Point&,
45  const Real,
46  DenseVector<Output>& output)
47  {for(unsigned int i = 0; i < output.size(); i++ )
48  output(i) = _c;}
49 
50 private:
51  Output _c;
52 };
53 
54 } // namespace libMesh;
55 
56 
57 #endif // LIBMESH_CONST_FEM_FUNCTION_H

Site Created By: libMesh Developers
Last modified: February 07 2014 16:57:04 UTC

Hosted By:
SourceForge.net Logo