genfit::HMatrixUV Class Reference

AbsHMatrix implementation for two-dimensional MeasurementOnPlane and RKTrackRep parameterization. More...

#include <HMatrixUV.h>

Inheritance diagram for genfit::HMatrixUV:

Collaboration diagram for genfit::HMatrixUV:

Public Member Functions
	HMatrixUV ()
const TMatrixD &	getMatrix () const
	Get the actual matrix representation.
TVectorD	Hv (const TVectorD &v) const
	H*v.
TMatrixD	MHt (const TMatrixDSym &M) const
	M*H^t.
TMatrixD	MHt (const TMatrixD &M) const
void	HMHt (TMatrixDSym &M) const
	similarity: H*M*H^t
virtual AbsHMatrix *	clone () const
virtual bool	isEqual (const AbsHMatrix &other) const
Public Member Functions inherited from genfit::AbsHMatrix
	AbsHMatrix ()
virtual	~AbsHMatrix ()
bool	operator== (const AbsHMatrix &other) const
bool	operator!= (const AbsHMatrix &other) const
virtual void	Print (const Option_t *="") const

Additional Inherited Members
Protected Member Functions inherited from genfit::AbsHMatrix
	AbsHMatrix (const AbsHMatrix &o)
AbsHMatrix &	operator= (const AbsHMatrix &)

Detailed Description

AbsHMatrix implementation for two-dimensional MeasurementOnPlane and RKTrackRep parameterization.

This projects out u and v. H = (0, 0, 0, 1, 0) (0, 0, 0, 0, 1)

Definition at line 39 of file HMatrixUV.h.

Constructor & Destructor Documentation

HMatrixUV()

genfit::HMatrixUV::HMatrixUV ( )

inline

Definition at line 44 of file HMatrixUV.h.

{;}

Member Function Documentation

clone()

virtual AbsHMatrix * genfit::HMatrixUV::clone ( ) const

inlinevirtual

Implements genfit::AbsHMatrix.

Definition at line 55 of file HMatrixUV.h.

{return new HMatrixUV(*this);}

getMatrix()

const TMatrixD & genfit::HMatrixUV::getMatrix ( ) const

virtual

Get the actual matrix representation.

Implements genfit::AbsHMatrix.

Definition at line 30 of file HMatrixUV.cc.

                                           {
  static const double HMatrixContent[2*5] = {0, 0, 0, 1, 0,
                                             0, 0, 0, 0, 1};
 
  static const TMatrixD HMatrix(2,5, HMatrixContent);
 
  return HMatrix;
}

HMHt()

void genfit::HMatrixUV::HMHt ( TMatrixDSym &  M ) const

virtual

similarity: H*M*H^t

Reimplemented from genfit::AbsHMatrix.

Definition at line 83 of file HMatrixUV.cc.

                                         {
  assert (M.GetNrows() == 5);
  double* MatArray = M.GetMatrixArray();
 
  //
  //  HMH^t = ( M_33  M_34 ) where M_34 == M_43
  //          ( M_43  M_44 )
  //
  double uu = MatArray[3*5 + 3];
  double uv = MatArray[3*5 + 4];
  double vv = MatArray[4*5 + 4];
 
  M.ResizeTo(2,2);
  MatArray = M.GetMatrixArray();
  MatArray[0] = uu; MatArray[1] = uv;
  MatArray[2] = uv; MatArray[3] = vv;
}

Hv()

TVectorD genfit::HMatrixUV::Hv ( const TVectorD &  v ) const

virtual

H*v.

Reimplemented from genfit::AbsHMatrix.

Definition at line 40 of file HMatrixUV.cc.

                                              {
  assert (v.GetNrows() == 5);
 
  double* retValArray =(double *)alloca(sizeof(double) * 2);
  const double* VecArray = v.GetMatrixArray();
 
  retValArray[0] = VecArray[3]; // u
  retValArray[1] = VecArray[4]; // v
 
  return TVectorD(2, retValArray);
}

isEqual()

virtual bool genfit::HMatrixUV::isEqual ( const AbsHMatrix &  other ) const

inlinevirtual

Implements genfit::AbsHMatrix.

Definition at line 57 of file HMatrixUV.h.

{return (dynamic_cast<const HMatrixUV*>(&other) != NULL);}

MHt() [1/2]

TMatrixD genfit::HMatrixUV::MHt ( const TMatrixD &  M ) const

virtual

Reimplemented from genfit::AbsHMatrix.

Definition at line 68 of file HMatrixUV.cc.

                                               {
  assert (M.GetNcols() == 5);
 
  double* retValArray =(double *)alloca(sizeof(double) * M.GetNrows()*2);
  const double* MatArray = M.GetMatrixArray();
 
  for (int i = 0; i < M.GetNrows(); ++i) {
    retValArray[i*2] = MatArray[i*5 + 3];
    retValArray[i*2 + 1] = MatArray[i*5 + 4];
  }
 
  return TMatrixD(M.GetNrows(),2, retValArray);
}

MHt() [2/2]

TMatrixD genfit::HMatrixUV::MHt ( const TMatrixDSym &  M ) const

virtual

M*H^t.

Reimplemented from genfit::AbsHMatrix.

Definition at line 53 of file HMatrixUV.cc.

                                                  {
  assert (M.GetNcols() == 5);
 
  double* retValArray =(double *)alloca(sizeof(double) * 5*2);
  const double* MatArray = M.GetMatrixArray();
 
  for (unsigned int i=0; i<5; ++i) {
    retValArray[i*2] = MatArray[i*5 + 3];
    retValArray[i*2 + 1] = MatArray[i*5 + 4];
  }
 
  return TMatrixD(5,2, retValArray);
}

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The documentation for this class was generated from the following files:

• genfit/measurements/include/HMatrixUV.h
• genfit/measurements/src/HMatrixUV.cc