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NodalTriFekete.h
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2 //
3 // File NodalTriFekete.h
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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 Fekete Points
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NODALTRIFEKETE_H
37 #define NODALTRIFEKETE_H
38 
43 #include <iostream>
44 #include <boost/shared_ptr.hpp>
48 
49 namespace Nektar
50 {
51  namespace LibUtilities
52  {
53 
54  class NodalTriFekete: public Points<NekDouble>
55  {
56  public:
57  virtual ~NodalTriFekete()
58  {
59  }
60 
62  {
63  }
64 
65  LIB_UTILITIES_EXPORT static boost::shared_ptr<PointsBaseType>
66  Create(const PointsKey &key);
67 
68  const MatrixSharedPtrType GetI(const PointsKey &pkey)
69  {
70  ASSERTL0(pkey.GetPointsDim() == 2,
71  "Fekete Points can only interp to other 2d "
72  "point distributions");
74  PointsManager()[pkey]->GetPoints(x, y);
75  return GetI(x, y);
76  }
77 
81  {
82  int numpoints = x.num_elements();
83  unsigned int np = GetTotNumPoints();
84 
85  Array<OneD, NekDouble> interp(GetTotNumPoints()*numpoints);
86  CalculateInterpMatrix(x, y, interp);
87 
88  NekDouble* d = interp.data();
90  ::AllocateSharedPtr(numpoints, np, d);
91  }
92 
93  private:
94  boost::shared_ptr<NodalUtilTriangle> m_util;
95 
97  {
98  }
99 
100  void CalculatePoints();
101  void CalculateWeights();
102  void CalculateDerivMatrix();
103  void NodalPointReorder2d();
104 
108  Array<OneD, NekDouble> &interp);
109  }; // end of NodalTriFekete
110  } // end of namespace
111 } // end of namespace
112 
113 #endif //NODALTRIFEKETE_H
const MatrixSharedPtrType GetI(const PointsKey &pkey)
boost::shared_ptr< NodalUtilTriangle > m_util
static const PointsKey NullPointsKey(0, eNoPointsType)
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:198
General purpose memory allocation routines with the ability to allocate from thread specific memory p...
boost::shared_ptr< NekMatrix< DataType > > MatrixSharedPtrType
Definition: Points.h:250
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)
NodalTriFekete(const PointsKey &key)
static boost::shared_ptr< PointsBaseType > Create(const PointsKey &key)
unsigned int GetTotNumPoints() const
Definition: Points.h:273
Stores a set of points of datatype DataT, defined by a PointKey.