Orfeo Toolbox  3.20
itkFEMElement2DC0LinearTriangular.h
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1 /*=========================================================================
2
3  Program: Insight Segmentation & Registration Toolkit
4  Module: \$RCSfile: itkFEMElement2DC0LinearTriangular.h,v \$
5  Language: C++
6  Date: \$Date: 2009-01-28 21:29:04 \$
7  Version: \$Revision: 1.7 \$
8
11
12  This software is distributed WITHOUT ANY WARRANTY; without even
13  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15
16 =========================================================================*/
17
18 #ifndef __itkFEMElement2DC0LinearTriangular_h
19 #define __itkFEMElement2DC0LinearTriangular_h
20
21 #include "itkFEMElementStd.h"
22
23 namespace itk {
24 namespace fem {
25
31 {
34 public:
35
36
38
43
44  virtual void GetIntegrationPointAndWeight(unsigned int i, VectorType& pt, Float& w, unsigned int order) const;
45
46  virtual unsigned int GetNumberOfIntegrationPoints(unsigned int order) const;
47
49
53  virtual VectorType ShapeFunctions( const VectorType& pt ) const;
54
55  virtual void ShapeFunctionDerivatives( const VectorType& pt, MatrixType& shapeD ) const;
56
57  // FIXME: Write a proper implementation
58  virtual bool GetLocalFromGlobalCoordinates( const VectorType& globalPt , VectorType& localPt) const;
59
60  // Since the Jacobian is not quadratic, we need to provide our
61  // own implementation of calculating the determinant and inverse.
62  virtual Float JacobianDeterminant( const VectorType& pt, const MatrixType* pJ = 0 ) const;
63  virtual void JacobianInverse( const VectorType& pt, MatrixType& invJ, const MatrixType* pJ = 0 ) const;
64
68 #ifdef FEM_BUILD_VISUALIZATION
69  void Draw(CDC* pDC, Solution::ConstPointer sol) const;
70 #endif
71
75  static const Float trigGaussRuleInfo[6][7][4];
76
81  static const unsigned int Nip[6];
82
83 };
84
85 }} // end namespace itk::fem
86
87 #endif // #ifndef __itkFEMElement2DC0LinearTriangular_h

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