AbstractLinearEllipticPde.hpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2009
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 #ifndef _ABSTRACTLINEARELLIPTICPDE_HPP_
00029 #define _ABSTRACTLINEARELLIPTICPDE_HPP_
00030 
00031 #include "UblasCustomFunctions.hpp"
00032 #include "ChastePoint.hpp"
00033 #include "Node.hpp"
00034 #include "Element.hpp"
00035 #include <petscvec.h>
00036 
00037 
00049 
00050 // IMPORTANT NOTE: the inheritance of AbstractPde has to be 'virtual', ie
00051 // "class AbstractCardiacPde : public virtual AbstractPde"
00052 // because AbstractPde will be the top class in a 'dreaded diamond':
00053 //      A
00054 //     / \     A = AbstractPde, B = AbstractCardiac,
00055 //    B   C    C = AbtractLinearElliptic (and AbstractLinearParabolicPde)
00056 //     \ /     D = MonodomainPde
00057 //      D
00058 //
00059 // B and C must use virtual inheritence of A in order for D to only contain 1 instance
00060 // of the member variables in A
00061 
00062 
00063 template <unsigned ELEM_DIM, unsigned SPACE_DIM>
00064 class AbstractLinearEllipticPde
00065 {
00066 public:
00067 
00074     virtual double ComputeConstantInUSourceTerm(const ChastePoint<SPACE_DIM>& rX)=0;
00075 
00083     virtual double ComputeLinearInUCoeffInSourceTerm(const ChastePoint<SPACE_DIM>& rX,
00084                                                      Element<ELEM_DIM,SPACE_DIM>* pElement)=0;
00085 
00092     virtual c_matrix<double, SPACE_DIM, SPACE_DIM> ComputeDiffusionTerm(const ChastePoint<SPACE_DIM>& rX)=0;
00093 
00100     virtual double ComputeConstantInUSourceTermAtNode(const Node<SPACE_DIM>& rNode);
00101 
00108     virtual double ComputeLinearInUCoeffInSourceTermAtNode(const Node<SPACE_DIM>& rNode);
00109 
00113     virtual ~AbstractLinearEllipticPde()
00114     {}
00115 };
00116 
00117 
00119 // Implementation
00121 
00122 
00123 template <unsigned ELEM_DIM, unsigned SPACE_DIM>
00124 double AbstractLinearEllipticPde<ELEM_DIM, SPACE_DIM>::ComputeConstantInUSourceTermAtNode(const Node<SPACE_DIM>& rNode)
00125 {
00126     return ComputeConstantInUSourceTerm(rNode.GetPoint());
00127 }
00128 
00129 template <unsigned ELEM_DIM, unsigned SPACE_DIM>
00130 double AbstractLinearEllipticPde<ELEM_DIM, SPACE_DIM>::ComputeLinearInUCoeffInSourceTermAtNode(const Node<SPACE_DIM>& rNode)
00131 {
00132     return ComputeLinearInUCoeffInSourceTerm(rNode.GetPoint(), NULL);
00133 }
00134 
00135 #endif //_ABSTRACTLINEARELLIPTICPDE_HPP_

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