ITK  4.9.0
Insight Segmentation and Registration Toolkit
itkFEMElement2DC0LinearQuadrilateral.h
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18 
19 #ifndef itkFEMElement2DC0LinearQuadrilateral_h
20 #define itkFEMElement2DC0LinearQuadrilateral_h
21 
22 #include "itkFEMElementStd.h"
23 #include "ITKFEMExport.h"
24 
25 namespace itk
26 {
27 namespace fem
28 {
57 class ITKFEM_EXPORT Element2DC0LinearQuadrilateral : public ElementStd<4, 2>
58 {
59 public:
66 
69 
70  // ////////////////////////////////////////////////////////////////////////
75  enum { DefaultIntegrationOrder = 2 };
76 
78  virtual void GetIntegrationPointAndWeight(unsigned int i, VectorType & pt, Float & w, unsigned int order) const ITK_OVERRIDE;
79 
81  virtual unsigned int GetNumberOfIntegrationPoints(unsigned int order) const ITK_OVERRIDE;
82 
83  // ////////////////////////////////////////////////////////////////////////
89  virtual VectorType ShapeFunctions(const VectorType & pt) const ITK_OVERRIDE;
90 
92  virtual void ShapeFunctionDerivatives(const VectorType & pt, MatrixType & shapeD) const ITK_OVERRIDE;
93 
95  virtual bool GetLocalFromGlobalCoordinates(const VectorType & globalPt, VectorType & localPt) const ITK_OVERRIDE;
96 
98  void InterpolationFunctions( const VectorType & pcoords, VectorType & sf) const;
99 
101  void InterpolationDerivs(const VectorType & pcoords, VectorType & derivs) const;
102 
104  Float Determinant2x2(const VectorType & c1, const VectorType & c2) const;
105 
106 protected:
107  virtual void PopulateEdgeIds(void) ITK_OVERRIDE;
108 
109  virtual void PrintSelf(std::ostream& os, Indent indent) const ITK_OVERRIDE;
110 
111 private:
112 
113 };
114 }
115 } // end namespace itk::fem
116 
117 #endif // #ifndef itkFEMElement2DC0LinearQuadrilateral_h
Implements standard node management in the element classes.
4-noded, linear, C0 continuous finite element in 2D space.The ordering of the nodes is counter clockw...
Control indentation during Print() invocation.
Definition: itkIndent.h:49