AbstractTetrahedralElement.hpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2011
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 
00029 
00030 #ifndef _ABSTRACTTETRAHEDRALELEMENT_HPP_
00031 #define _ABSTRACTTETRAHEDRALELEMENT_HPP_
00032 
00033 #include <vector>
00034 
00035 #include "UblasMatrixInclude.hpp"
00036 #include "UblasVectorInclude.hpp"
00037 
00038 #include "AbstractElement.hpp"
00039 #include "Node.hpp"
00040 
00044 template <unsigned ELEMENT_DIM, unsigned SPACE_DIM>
00045 class AbstractTetrahedralElement : public AbstractElement<ELEMENT_DIM,SPACE_DIM>
00046 {
00047 protected:
00048 
00054     void RefreshJacobian(c_matrix<double, SPACE_DIM, ELEMENT_DIM>& rJacobian);
00055 
00056 public:
00057 
00064     AbstractTetrahedralElement(unsigned index, const std::vector<Node<SPACE_DIM>*>& rNodes);
00065 
00072     AbstractTetrahedralElement(unsigned index=INDEX_IS_NOT_USED);
00073 
00077     virtual ~AbstractTetrahedralElement()
00078     {}
00079 
00083     c_vector<double, SPACE_DIM> CalculateCentroid() const;
00084 
00091     void CalculateJacobian(c_matrix<double, SPACE_DIM, ELEMENT_DIM>& rJacobian,
00092                            double& rJacobianDeterminant);
00093 
00100     void CalculateWeightedDirection(c_vector<double, SPACE_DIM>& rWeightedDirection, double& rJacobianDeterminant);
00101 
00109     void CalculateInverseJacobian(c_matrix<double, SPACE_DIM, ELEMENT_DIM>& rJacobian,
00110                                   double& rJacobianDeterminant,
00111                                   c_matrix<double, ELEMENT_DIM, SPACE_DIM>& rInverseJacobian);
00112 
00117     double GetVolume(double determinant) const;
00118 
00127     void GetStiffnessMatrixGlobalIndices(unsigned problemDim, unsigned* pIndices) const;
00128 };
00129 
00131 //                  Specialization for 0d elements                  //
00133 
00138 template<unsigned SPACE_DIM>
00139 class AbstractTetrahedralElement<0, SPACE_DIM> : public AbstractElement<0,SPACE_DIM>
00140 {
00141 public:
00142 
00149     AbstractTetrahedralElement(unsigned index, const std::vector<Node<SPACE_DIM>*>& rNodes);
00150 
00157     AbstractTetrahedralElement(unsigned index=INDEX_IS_NOT_USED);
00158 
00162     virtual ~AbstractTetrahedralElement()
00163     {}
00164 
00168     c_vector<double, SPACE_DIM> CalculateCentroid() const;
00169 
00176     void CalculateWeightedDirection(c_vector<double, SPACE_DIM>& rWeightedDirection, double& rJacobianDeterminant);
00177 
00186     void GetStiffnessMatrixGlobalIndices(unsigned problemDim, unsigned* pIndices) const;
00187 };
00188 
00189 #endif //_ABSTRACTTETRAHEDRALELEMENT_HPP_

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