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NodalTriEvenlySpaced.h
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2 //
3 // File NodalTriEvenlySpaced.h
4 //
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
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31 //
32 // Description: Header file of 2D Nodal Triangle Evenly Spaced Points
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NODALTRIEVENLYSPACED_H
37 #define NODALTRIEVENLYSPACED_H
38 
41 #include <boost/shared_ptr.hpp>
45 
46 namespace Nektar
47 {
48  namespace LibUtilities
49  {
50  class NodalTriEvenlySpaced: public Points<NekDouble>
51  {
52  public:
54  {
55 
56  }
57 
59  {
60 
61  }
62 
63  LIB_UTILITIES_EXPORT static boost::shared_ptr<PointsBaseType>
64  Create(const PointsKey &key);
65 
66  const MatrixSharedPtrType GetI(const PointsKey &pkey)
67  {
68  ASSERTL0(pkey.GetPointsDim() == 2,
69  "NodalTriEvenlySpaced Points can only interp to other "
70  "2d point distributions");
71  Array<OneD, const NekDouble> x, y;
72  PointsManager()[pkey]->GetPoints(x, y);
73  return GetI(x, y);
74  }
75 
77  const Array<OneD, const NekDouble> &x,
78  const Array<OneD, const NekDouble> &y)
79  {
80  int numpoints = x.num_elements();
81  unsigned int np = GetTotNumPoints();
82 
83  Array<OneD, NekDouble> interp(GetTotNumPoints()*numpoints);
84  CalculateInterpMatrix(x, y, interp);
85 
86  NekDouble* d = interp.data();
88  ::AllocateSharedPtr(numpoints, np, d);
89  }
90 
91  private:
92  /// Deafult constructor should not be called except by Create matrix
94  {
95  }
96 
97  void CalculatePoints();
98  void CalculateWeights();
99  void CalculateDerivMatrix();
100  void NodalPointReorder2d();
102  const Array<OneD, const NekDouble> &xi,
103  const Array<OneD, const NekDouble> &yi,
104  Array<OneD, NekDouble> &interp);
105  }; // end of NodalTriEvenlySpaced
106  } // end of namespace
107 } // end of namespace
108 
109 #endif //NODALTRIEVENLYSPACED_H