InDet::PixelSpacePoint Class Reference

A PixelSpacePoint is created from a PixelCluster. More...

#include <PixelSpacePoint.h>

Inheritance diagram for InDet::PixelSpacePoint:

Collaboration diagram for InDet::PixelSpacePoint:

Public Member Functions
	PixelSpacePoint ()=default
	Default constructor.
	PixelSpacePoint (IdentifierHash elementId, const Trk::PrepRawData *clus)
	Parametrised constructor.
	PixelSpacePoint (IdentifierHash elementId, const Trk::PrepRawData *clus, const Amg::Vector3D &globpos, const AmgSymMatrix(3)&globcov)
	add Covariance Matrix and global position directly
	PixelSpacePoint (const PixelSpacePoint &PSP)=default
	PixelSpacePoint (PixelSpacePoint &&PSP) noexcept=default
PixelSpacePoint &	operator= (const PixelSpacePoint &)=default
PixelSpacePoint &	operator= (PixelSpacePoint &&) noexcept=default
	~PixelSpacePoint ()=default
	Destructor.
virtual SpacePoint *	clone () const override final
	Clones.
virtual MsgStream &	dump (MsgStream &out) const override final
	Interface method for output, to be overloaded by child classes.
virtual std::ostream &	dump (std::ostream &out) const override final
	Interface method for output, to be overloaded by child classes.
const std::pair< IdentifierHash, IdentifierHash > &	elementIdList () const
	return the pair of Ids of the element by reference
const std::pair< const PrepRawData *, const PrepRawData * > &	clusterList () const
	return the pair of cluster pointers by reference
const	AmgSymMatrix (3) &globCovariance() const
	return the error matrix by reference The Matrix is calculated from the local Covariance Matrix when demanded and the cached
double	eta (double z0=0) const
	calculate eta (not cached), needs z0 info
double	r () const
	returns the r value of the SpacePoint's position (in cylindrical coordinates).
double	phi () const
	returns the phi value of the SpacePoint's position (in cylindrical coordinates).
virtual const Surface &	associatedSurface () const override final
	Interface method to get the associated Surface.
virtual const Amg::Vector3D &	globalPosition () const override final
	Interface method to get the global Position.
std::unique_ptr< SpacePoint >	uniqueClone () const
	Clone.
virtual bool	type (MeasurementBaseType::Type type) const override final
	Extended method checking the type.
const LocalParameters &	localParameters () const
	Interface method to get the LocalParameters.
const Amg::MatrixX &	localCovariance () const
	Interface method to get the localError.

Protected Member Functions
	AmgSymMatrix (3) m_globalCovariance
void	setupGlobalFromLocalCovariance ()
	set up the global covariance matrix by rotating the local one

Protected Attributes
std::pair< const PrepRawData *, const PrepRawData * >	m_clusList
std::pair< IdentifierHash, IdentifierHash >	m_elemIdList
Amg::Vector3D	m_position
LocalParameters	m_localParams
Amg::MatrixX	m_localCovariance

Detailed Description

A PixelSpacePoint is created from a PixelCluster.

Definition at line 31 of file PixelSpacePoint.h.

Constructor & Destructor Documentation

PixelSpacePoint() [1/5]

InDet::PixelSpacePoint::PixelSpacePoint ( )

default

Default constructor.

PixelSpacePoint() [2/5]

InDet::PixelSpacePoint::PixelSpacePoint	(	IdentifierHash	elementId,
		const Trk::PrepRawData *	clus )

Parametrised constructor.

Constructor without globCovariance.

Definition at line 23 of file PixelSpacePoint.cxx.

    : SpacePoint() {
  assert(clus != nullptr);
  Trk::MeasurementBase::m_localParams =
      Trk::LocalParameters(clus->localPosition());
  Trk::MeasurementBase::m_localCovariance = clus->localCovariance();
  m_position =
      clus->detectorElement()->surface().localToGlobal(clus->localPosition());
 
  m_clusList = {clus, nullptr};
  m_elemIdList.first = elementId;
  m_elemIdList.second = 0;
  setupGlobalFromLocalCovariance();
}

PixelSpacePoint() [3/5]

InDet::PixelSpacePoint::PixelSpacePoint	(	IdentifierHash	elementId,
		const Trk::PrepRawData *	clus,
		const Amg::Vector3D &	globpos,
		const AmgSymMatrix(3)&	globcov )

add Covariance Matrix and global position directly

Constructor with globPosition and globCovariance.

Definition at line 42 of file PixelSpacePoint.cxx.

    : SpacePoint() {
  assert(clus != nullptr);
  m_position = globpos;
  m_globalCovariance = globcov;
  m_clusList = {clus, nullptr};
  m_elemIdList.first = elementId;
  m_elemIdList.second = 0;
}

PixelSpacePoint() [4/5]

InDet::PixelSpacePoint::PixelSpacePoint ( const PixelSpacePoint & PSP )

default

PixelSpacePoint() [5/5]

InDet::PixelSpacePoint::PixelSpacePoint ( PixelSpacePoint && PSP )

defaultnoexcept

~PixelSpacePoint()

InDet::PixelSpacePoint::~PixelSpacePoint ( )

default

Destructor.

Member Function Documentation

AmgSymMatrix() [1/2]

const Trk::SpacePoint::AmgSymMatrix ( 3 ) const &

inherited

return the error matrix by reference The Matrix is calculated from the local Covariance Matrix when demanded and the cached

AmgSymMatrix() [2/2]

Trk::SpacePoint::AmgSymMatrix ( 3 )

protectedinherited

associatedSurface()

const Surface & SpacePoint::associatedSurface ( ) const

finaloverridevirtualinherited

Interface method to get the associated Surface.

Implements Trk::MeasurementBase.

Definition at line 77 of file Tracking/TrkEvent/TrkSpacePoint/src/SpacePoint.cxx.

                                                     {
    assert(m_clusList.first->detectorElement());
    return m_clusList.first->detectorElement()->surface();
  }

clone()

Trk::SpacePoint * InDet::PixelSpacePoint::clone ( ) const

inlinefinaloverridevirtual

Clones.

Implements Trk::SpacePoint.

Definition at line 71 of file PixelSpacePoint.h.

                                                   {
  return new PixelSpacePoint(*this);
}

clusterList()

const std::pair< const PrepRawData *, const PrepRawData * > & SpacePoint::clusterList ( ) const

inlineinherited

return the pair of cluster pointers by reference

Definition at line 127 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                              {
  return m_clusList;
}

dump() [1/2]

MsgStream & InDet::PixelSpacePoint::dump ( MsgStream & out ) const

finaloverridevirtual

Interface method for output, to be overloaded by child classes.

Implements Trk::SpacePoint.

Definition at line 57 of file PixelSpacePoint.cxx.

                                                     {
  std::ostringstream os;
  dump(os);
  out << os.str();
  return out;
}

dump() [2/2]

std::ostream & InDet::PixelSpacePoint::dump ( std::ostream & out ) const

finaloverridevirtual

Interface method for output, to be overloaded by child classes.

Implements Trk::SpacePoint.

Definition at line 66 of file PixelSpacePoint.cxx.

                                                       {
  const std::string lf{"\n"};  // linefeed
  out << "PixelSpacePoint  contains: " << lf;
  out << "Identifier Hash " << int(this->elementIdList().first) << lf;
  out << "Global Position:  " << Amg::toString(this->globalPosition(), 3) << lf;
  out << "Global Covariance Matrix " << Amg::toString(this->globCovariance(), 3)
      << lf;
  out << "Local Parameters " << this->localParameters() << lf;
  out << "Local Covariance " << Amg::toString(this->localCovariance()) << lf;
  out << "Cluster 1 :" << lf << (*this->clusterList().first) << std::endl;
 
  return out;
}

elementIdList()

const std::pair< IdentifierHash, IdentifierHash > & SpacePoint::elementIdList ( ) const

inlineinherited

return the pair of Ids of the element by reference

Definition at line 122 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                {
  return m_elemIdList;
}

eta()

double SpacePoint::eta ( double z0 = 0 ) const

inlineinherited

calculate eta (not cached), needs z0 info

Definition at line 131 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                             {
  //  double zr = (m_z-z0)/m_r;
  double zr = (m_position.z() - z0) / m_position.perp();
  return std::log(zr + std::sqrt(1. + zr * zr));
}

globalPosition()

const Amg::Vector3D & SpacePoint::globalPosition ( ) const

inlinefinaloverridevirtualinherited

Interface method to get the global Position.

Implements Trk::MeasurementBase.

Definition at line 146 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                                           {
  return m_position;
}

localCovariance()

const Amg::MatrixX & Trk::MeasurementBase::localCovariance ( ) const

inlineinherited

Interface method to get the localError.

Definition at line 138 of file MeasurementBase.h.

{
  return m_localCovariance;
}

localParameters()

const Trk::LocalParameters & Trk::MeasurementBase::localParameters ( ) const

inlineinherited

Interface method to get the LocalParameters.

Definition at line 132 of file MeasurementBase.h.

{
  return m_localParams;
}

operator=() [1/2]

PixelSpacePoint & InDet::PixelSpacePoint::operator= ( const PixelSpacePoint & )

default

operator=() [2/2]

PixelSpacePoint & InDet::PixelSpacePoint::operator= ( PixelSpacePoint && )

defaultnoexcept

phi()

double SpacePoint::phi ( ) const

inlineinherited

returns the phi value of the SpacePoint's position (in cylindrical coordinates).

This is calculated once in the ctor and then cached

Definition at line 141 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                    {
  return m_position.phi();
}

r()

double SpacePoint::r ( ) const

inlineinherited

returns the r value of the SpacePoint's position (in cylindrical coordinates).

This is calculated once in the ctor and then cached

Definition at line 137 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                  {
  return m_position.perp();
}

setupGlobalFromLocalCovariance()

ATH_FLATTEN void SpacePoint::setupGlobalFromLocalCovariance ( )

protectedinherited

set up the global covariance matrix by rotating the local one

Definition at line 63 of file Tracking/TrkEvent/TrkSpacePoint/src/SpacePoint.cxx.

                                                  {
    const Amg::MatrixX& lc = this->localCovariance();
 
    Eigen::Matrix3d cov;
 
    cov << lc(0, 0), lc(0, 1), 0., 
           lc(1, 0), lc(1, 1), 0.,
           // cppcheck-suppress constStatement
           0., 0., 0.;
 
    const Amg::RotationMatrix3D& R = associatedSurface().transform().rotation();
    m_globalCovariance = R * cov * R.transpose();
  }

type()

virtual bool Trk::SpacePoint::type ( MeasurementBaseType::Type type ) const

inlinefinaloverridevirtualinherited

Extended method checking the type.

Implements Trk::MeasurementBase.

Definition at line 87 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                                                       {
    return (type == MeasurementBaseType::SpacePoint);
  }

uniqueClone()

std::unique_ptr< SpacePoint > Trk::SpacePoint::uniqueClone ( ) const

inlineinherited

Clone.

Definition at line 82 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

                                                {
    return std::unique_ptr<SpacePoint>(clone());
  }

Member Data Documentation

m_clusList

std::pair<const PrepRawData*, const PrepRawData*> Trk::SpacePoint::m_clusList

protectedinherited

Definition at line 97 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

m_elemIdList

std::pair<IdentifierHash, IdentifierHash> Trk::SpacePoint::m_elemIdList

protectedinherited

Definition at line 98 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

m_localCovariance

Amg::MatrixX Trk::MeasurementBase::m_localCovariance

protectedinherited

Definition at line 112 of file MeasurementBase.h.

m_localParams

LocalParameters Trk::MeasurementBase::m_localParams

protectedinherited

Definition at line 111 of file MeasurementBase.h.

m_position

Amg::Vector3D Trk::SpacePoint::m_position

protectedinherited

Definition at line 99 of file Tracking/TrkEvent/TrkSpacePoint/TrkSpacePoint/SpacePoint.h.

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

• PixelSpacePoint.h
• PixelSpacePoint.cxx