ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkFEMElement2DC0LinearQuadrilateral.h
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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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18 
19 #ifndef __itkFEMElement2DC0LinearQuadrilateral_h
20 #define __itkFEMElement2DC0LinearQuadrilateral_h
21 
22 #include "itkFEMElementStd.h"
23 
24 namespace itk
25 {
26 namespace fem
27 {
57 {
58 public:
65 
68 
69  // ////////////////////////////////////////////////////////////////////////
75 
77  virtual void GetIntegrationPointAndWeight(unsigned int i, VectorType & pt, Float & w, unsigned int order) const;
78 
80  virtual unsigned int GetNumberOfIntegrationPoints(unsigned int order) const;
81 
82  // ////////////////////////////////////////////////////////////////////////
88  virtual VectorType ShapeFunctions(const VectorType & pt) const;
89 
91  virtual void ShapeFunctionDerivatives(const VectorType & pt, MatrixType & shapeD) const;
92 
94  virtual bool GetLocalFromGlobalCoordinates(const VectorType & globalPt, VectorType & localPt) const;
95 
97  void InterpolationFunctions( const VectorType & pcoords, VectorType & sf) const;
98 
100  void InterpolationDerivs(const VectorType & pcoords, VectorType & derivs) const;
101 
103  Float Determinant2x2(const VectorType & c1, const VectorType & c2) const;
104 
105 protected:
106  virtual void PopulateEdgeIds(void);
107 
108  virtual void PrintSelf(std::ostream& os, Indent indent) const;
109 
110 private:
111 
112 };
113 }
114 } // end namespace itk::fem
115 
116 #endif // #ifndef __itkFEMElement2DC0LinearQuadrilateral_h
117