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itkFEMElement3DMembrane.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFEMElement3DMembrane.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:29:41 $
00007   Version:   $Revision: 1.3 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkFEMElement3DMembrane_h
00019 #define __itkFEMElement3DMembrane_h
00020 
00021 #include "itkFEMElementBase.h"
00022 #include "itkFEMMaterialLinearElasticity.h"
00023 
00024 namespace itk {
00025 namespace fem {
00026 
00027 
00028 
00029 
00044 template<class TBaseClass=Element>
00045 class Element3DMembrane : public TBaseClass
00046 {
00047 FEM_ABSTRACT_CLASS(Element3DMembrane,TBaseClass)
00048 public:
00049 
00050   // Repeat the required typedefs and enums from parent class
00051   typedef typename Superclass::Float Float;
00052   typedef typename Superclass::MatrixType MatrixType;
00053   typedef typename Superclass::VectorType VectorType;
00054 
00058   virtual void Read( std::istream&, void* info );
00059 
00063   virtual void Write( std::ostream& f ) const;
00064 
00068   Element3DMembrane();
00069 
00070 
00071 
00072 
00074   /*
00075    * Methods related to the physics of the problem.
00076    */
00077 
00081   virtual void GetStrainDisplacementMatrix(MatrixType& B, const MatrixType& shapeDgl) const;
00082 
00086   virtual void GetMaterialMatrix(MatrixType& D) const;
00087 
00091   void GetMassMatrix(MatrixType& Me) const;
00092 
00093 
00097   virtual unsigned int GetNumberOfDegreesOfFreedomPerNode( void ) const
00098   { return 3; }
00099 
00100 
00101 
00102 public:
00103 
00107   MaterialLinearElasticity::ConstPointer m_mat;
00108   virtual Material::ConstPointer GetMaterial(void) const { return m_mat; }
00109   virtual void SetMaterial(Material::ConstPointer mat_ ) { m_mat=dynamic_cast<const MaterialLinearElasticity*>(&*mat_); }
00111 
00112 }; // class Element3DMembrane
00113 
00114 
00115 
00116 
00117 #ifdef _MSC_VER
00118 // Declare a static dummy function to prevent a MSVC 6.0 SP5 from crashing.
00119 // I have no idea why things don't work when this is not declared, but it
00120 // looks like this declaration makes compiler forget about some of the
00121 // troubles it has with templates.
00122 static void Dummy( void );
00123 #endif // #ifdef _MSC_VER
00124 
00125 }} // end namespace itk::fem
00126 
00127 #ifndef ITK_MANUAL_INSTANTIATION
00128 #include "itkFEMElement3DMembrane.txx"
00129 #endif
00130 
00131 #endif  // #ifndef __itkFEMElement3DMembrane_h
00132 

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