Nektar++
FourierPoints.h
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3 // File FourierPoints.h
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31 //
32 // Description: Header file of 1D Evenly-Spaced Point Definitions
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef FOURIERPOINTS_H
37 #define FOURIERPOINTS_H
38 
41 #include <boost/shared_ptr.hpp>
43 //#include <LibUtilities/BasicUtils/BasicUtilsFwd.hpp> // for NekManager
44 #include <LibUtilities/BasicUtils/NekManager.hpp> // for NekManager
45 
46 
47 namespace Nektar
48 {
49  namespace LibUtilities
50  {
51  class FourierPoints: public Points<NekDouble>
52  {
53  public:
54  virtual ~FourierPoints()
55  {
56  }
57 
58  LIB_UTILITIES_EXPORT static boost::shared_ptr< PointsBaseType > Create(const PointsKey &key);
59  LIB_UTILITIES_EXPORT boost::shared_ptr< NekMatrix<NekDouble> > CreateMatrix(const PointsKey &pkey);
60 
63  LIB_UTILITIES_EXPORT const MatrixSharedPtrType GetI(unsigned int numpoints, const Array<OneD, const NekDouble>& x);
64 
66  {
67  m_InterpManager.RegisterCreator(PointsKey(0, eGaussGaussLegendre),
68  boost::bind(&FourierPoints::CreateMatrix, this, _1));
70  boost::bind(&FourierPoints::CreateMatrix, this, _1));
72  boost::bind(&FourierPoints::CreateMatrix, this, _1));
74  boost::bind(&FourierPoints::CreateMatrix, this, _1));
76  boost::bind(&FourierPoints::CreateMatrix, this, _1));
78  boost::bind(&FourierPoints::CreateMatrix, this, _1));
80  boost::bind(&FourierPoints::CreateMatrix, this, _1));
82  boost::bind(&FourierPoints::CreateMatrix, this, _1));
84  boost::bind(&FourierPoints::CreateMatrix, this, _1));
86  boost::bind(&FourierPoints::CreateMatrix, this, _1));
88  boost::bind(&FourierPoints::CreateMatrix, this, _1));
90  boost::bind(&FourierPoints::CreateMatrix, this, _1));
91  m_InterpManager.RegisterCreator(PointsKey(0, ePolyEvenlySpaced),
92  boost::bind(&FourierPoints::CreateMatrix, this, _1));
94  boost::bind(&FourierPoints::CreateMatrix, this, _1));
95  }
96 
97  private:
98  /// Default constructor should not be called except by Create method.
99  FourierPoints();
100 
101  /// Copy constructor should not be called.
102  FourierPoints(const FourierPoints &points);
103 
104  void CalculatePoints();
105  void CalculateWeights();
106  void CalculateDerivMatrix();
107 
108  void CalculateInterpMatrix(unsigned int npts, const Array<OneD, const NekDouble>& xpoints,
109  Array<OneD, NekDouble>& interp);
111  }; // class FourierPoints
112  } // end of namespace
113 } // end of namespace
114 
115 
116 #endif //FOURIERPOINTS_H
1D Gauss-Radau-Chebyshev quadrature points, pinned at x=-1
Definition: PointsType.h:52
1D Gauss-Radau-Legendre quadrature points, pinned at x=1
Definition: PointsType.h:49
FourierPoints(const PointsKey &key)
Definition: FourierPoints.h:65
Stores a set of points of datatype DataT, defined by a PointKey.
boost::shared_ptr< NekMatrix< NekDouble > > CreateMatrix(const PointsKey &pkey)
1D Gauss-Gauss-Legendre quadrature points
Definition: PointsType.h:47
Gauss Radau pinned at x=-1, .
Definition: PointsType.h:57
1D Evenly-spaced points using Lagrange polynomial
Definition: PointsType.h:63
void CalculateInterpMatrix(unsigned int npts, const Array< OneD, const NekDouble > &xpoints, Array< OneD, NekDouble > &interp)
1D Evenly-spaced points using Fourier Fit
Definition: PointsType.h:64
#define LIB_UTILITIES_EXPORT
NekManager< PointsKey, NekMatrix< DataType >, PointsKey::opLess > m_InterpManager
Definition: Points.h:352
1D Gauss-Radau-Chebyshev quadrature points, pinned at x=1
Definition: PointsType.h:53
static std::string npts
Definition: InputFld.cpp:43
1D Gauss-Gauss-Chebyshev quadrature points
Definition: PointsType.h:51
Defines a specification for a set of points.
Definition: Points.h:58
double NekDouble
static boost::shared_ptr< PointsBaseType > Create(const PointsKey &key)
FourierPoints()
Default constructor should not be called except by Create method.
const MatrixSharedPtrType GetI(const PointsKey &pkey)
boost::shared_ptr< NekMatrix< DataType > > MatrixSharedPtrType
Definition: Points.h:228
Gauss Radau pinned at x=-1, .
Definition: PointsType.h:58
NekDouble PeriodicSincFunction(const NekDouble x, const NekDouble h)
Gauss Radau pinned at x=-1, .
Definition: PointsType.h:56
Gauss Radau pinned at x=-1, .
Definition: PointsType.h:55
1D Gauss-Lobatto-Legendre quadrature points
Definition: PointsType.h:50
1D Gauss-Radau-Legendre quadrature points, pinned at x=-1
Definition: PointsType.h:48
1D Gauss-Lobatto-Legendre quadrature points
Definition: PointsType.h:54