Nektar++
NodalTriFekete.h
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3 // File NodalTriFekete.h
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
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11 // Computing and Imaging Institute, University of Utah (USA).
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31 //
32 // Description: Header file of 2D Nodal Triangle Fekete Points
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NODALTRIFEKETE_H
37 #define NODALTRIFEKETE_H
38 
42 #include <iostream>
43 #include <boost/shared_ptr.hpp>
47 
48 namespace Nektar
49 {
50  namespace LibUtilities
51  {
52 
53  class NodalTriFekete: public Points<NekDouble>
54  {
55  public:
56  virtual ~NodalTriFekete()
57  {
58  std::cout << "******* ~NodalTriFekete() destructor called!"
59  << endl;
60  }
61 
63  {
64  }
65 
66  LIB_UTILITIES_EXPORT static boost::shared_ptr<PointsBaseType>
67  Create(const PointsKey &key);
68 
69  const MatrixSharedPtrType GetI(const PointsKey &pkey)
70  {
71  ASSERTL0(pkey.GetPointsDim() == 2,
72  "Fekete Points can only interp to other 2d "
73  "point distributions");
75  PointsManager()[pkey]->GetPoints(x, y);
76  return GetI(x, y);
77  }
78 
82  {
83  int numpoints = x.num_elements();
84  unsigned int np = GetTotNumPoints();
85 
86  Array<OneD, NekDouble> interp(GetTotNumPoints()*numpoints);
87  CalculateInterpMatrix(x, y, interp);
88 
89  NekDouble* d = interp.data();
91  ::AllocateSharedPtr(numpoints, np, d);
92  }
93 
94  private:
96  {
97  std::cout << "******* NodalTriFekete() constructor called!"
98  << endl;
99  }
100 
101  void CalculatePoints();
102  void CalculateWeights();
103  void CalculateDerivMatrix();
104  void NodalPointReorder2d();
105 
109  Array<OneD, NekDouble> &interp);
110  }; // end of NodalTriFekete
111  } // end of namespace
112 } // end of namespace
113 
114 #endif //NODALTRIFEKETE_H
const MatrixSharedPtrType GetI(const PointsKey &pkey)
static const PointsKey NullPointsKey(0, eNoPointsType)
unsigned int GetTotNumPoints() const
Definition: Points.h:251
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:161
General purpose memory allocation routines with the ability to allocate from thread specific memory p...
Stores a set of points of datatype DataT, defined by a PointKey.
void CalculateInterpMatrix(const Array< OneD, const NekDouble > &xi, const Array< OneD, const NekDouble > &yi, Array< OneD, NekDouble > &interp)
#define LIB_UTILITIES_EXPORT
unsigned int GetPointsDim() const
Definition: Points.h:149
PointsManagerT & PointsManager(void)
Defines a specification for a set of points.
Definition: Points.h:58
double NekDouble
const MatrixSharedPtrType GetI(const Array< OneD, const NekDouble > &x, const Array< OneD, const NekDouble > &y)
boost::shared_ptr< NekMatrix< DataType > > MatrixSharedPtrType
Definition: Points.h:228
NodalTriFekete(const PointsKey &key)
static boost::shared_ptr< PointsBaseType > Create(const PointsKey &key)