ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkFEMElement2DStrain.h
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1 /*=========================================================================
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3  * Copyright Insight Software Consortium
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 
19 #ifndef __itkFEMElement2DStrain_h
20 #define __itkFEMElement2DStrain_h
21 
22 #include "itkFEMElementBase.h"
24 
25 namespace itk
26 {
27 namespace fem
28 {
50 template <class TBaseClass = Element>
51 class Element2DStrain : public TBaseClass
52 {
53 public:
54 
57  typedef TBaseClass Superclass;
60 
62  itkTypeMacro(Element2DStrain, TBaseClass);
63 
64  // Repeat the required typedefs and enums from parent class
65  typedef typename Superclass::Float Float;
68 
73 
74  // ////////////////////////////////////////////////////////////////////////
82  virtual void GetStrainDisplacementMatrix(MatrixType & B, const MatrixType & shapeDgl) const;
83 
87  virtual void GetMaterialMatrix(MatrixType & D) const;
88 
92  void GetMassMatrix(MatrixType & Me) const;
93 
97  virtual unsigned int GetNumberOfDegreesOfFreedomPerNode(void) const
98  {
99  return 2;
100  }
101 
106  {
107  return dynamic_cast<const Material *>(m_mat);
108  }
109 
111  {
112  m_mat =
113  dynamic_cast<const MaterialLinearElasticity *>( mat_.GetPointer() );
114  }
115 
116 protected:
117 
118  virtual void PrintSelf(std::ostream& os, Indent indent) const;
119 
124 }; // class Element2DStrain
125 
126 }
127 } // end namespace itk::fem
128 
129 #ifndef ITK_MANUAL_INSTANTIATION
130 #include "itkFEMElement2DStrain.hxx"
131 #endif
132 
133 #endif // #ifndef __itkFEMElement2DStrain_h
134