Trk::VertexOnTrack Class Reference

#include <VertexOnTrack.h>

Inheritance diagram for Trk::VertexOnTrack:

Collaboration diagram for Trk::VertexOnTrack:

Public Member Functions
	VertexOnTrack ()=default
	Default Constructor for POOL. More...
	VertexOnTrack (const VertexOnTrack &)=default
	VertexOnTrack (VertexOnTrack &&) noexcept=default
VertexOnTrack &	operator= (const VertexOnTrack &)=default
VertexOnTrack &	operator= (VertexOnTrack &&) noexcept=default
virtual	~VertexOnTrack ()=default
	VertexOnTrack (LocalParameters &&locpars, Amg::MatrixX &&locerr, const PerigeeSurface &assocSurf)
	Constructor with (LocalParameters&, LocalErrorMatrix&, PerigeeSurface&) The associated PerigeeSurface is cloned. More...
	VertexOnTrack (LocalParameters &&locpars, Amg::MatrixX &&locerr, SurfaceUniquePtrT< const PerigeeSurface > assocSurf)
	VertexOnTrack (const Trk::RecVertex &rvertex, const Trk::Perigee &mperigee)
	Constructor from: RedVertex, Perigee - the perigee is needed for the measurement frame. More...
VertexOnTrack *	clone () const override final
	Pseudo-constructor, needed to avoid excessive RTTI. More...
std::unique_ptr< VertexOnTrack >	uniqueClone () const
	NVI clone returning unique_ptr. More...
virtual const PerigeeSurface &	associatedSurface () const override final
	returns the surface for the local to global transformation More...
virtual const Amg::Vector3D &	globalPosition () const override final
	Interface method to get the global Position. More...
virtual bool	type (MeasurementBaseType::Type type) const override final
	Extended method checking the type. More...
virtual MsgStream &	dump (MsgStream &out) const override final
	returns the some information about this VertexOnTrack. More...
virtual std::ostream &	dump (std::ostream &out) const override final
	returns the some information about this VertexOnTrack. More...
const LocalParameters &	localParameters () const
	Interface method to get the LocalParameters. More...
const Amg::MatrixX &	localCovariance () const
	Interface method to get the localError. More...
void	destroySurface () noexcept
	destroySurface deletes the ptr if not null and the surface isFree Usefull also for testing More...
const S *	surfacePtr ()
	return the ptr we hold useful for tests More...
const S *	release () noexcept
	release ala unique_ptr release More...

Static Public Member Functions
static const S *	cloneHelper (const S *input)
	Helper for cloning or not when we need depending on if the surface isFree. More...

Protected Attributes
std::optional< Amg::Vector3D >	m_globalPosition = std::nullopt
	Global position of the VoT. More...
LocalParameters	m_localParams
Amg::MatrixX	m_localCovariance
const S *	m_associatedSurface = nullptr

Friends
class	::TrackCollectionCnv

Detailed Description

Class to handle Vertex On Tracks, it inherits from the common MeasurementBase.

Author

haert.nosp@m.el@m.nosp@m.ppmu..nosp@m.mpg..nosp@m.de

christos anastopoulos (Athena MT modification)

Definition at line 42 of file VertexOnTrack.h.

Constructor & Destructor Documentation

VertexOnTrack() [1/6]

Trk::VertexOnTrack::VertexOnTrack ( )

default

Default Constructor for POOL.

VertexOnTrack() [2/6]

Trk::VertexOnTrack::VertexOnTrack ( const VertexOnTrack &  )

default

VertexOnTrack() [3/6]

Trk::VertexOnTrack::VertexOnTrack ( VertexOnTrack &&  )

defaultnoexcept

~VertexOnTrack()

virtual Trk::VertexOnTrack::~VertexOnTrack ( )

virtualdefault

VertexOnTrack() [4/6]

Trk::VertexOnTrack::VertexOnTrack	(	LocalParameters &&	locpars,
		Amg::MatrixX &&	locerr,
		const PerigeeSurface &	assocSurf
	)

Constructor with (LocalParameters&, LocalErrorMatrix&, PerigeeSurface&) The associated PerigeeSurface is cloned.

Definition at line 24 of file VertexOnTrack.cxx.

  : Trk::MeasurementBase(std::move(locpars), std::move(locerr))
  , PerigeeSurfacePtrHolder(assocSurf)
  , m_globalPosition(std::nullopt)
{}

VertexOnTrack() [5/6]

Trk::VertexOnTrack::VertexOnTrack	(	LocalParameters &&	locpars,
		Amg::MatrixX &&	locerr,
		Trk::SurfaceUniquePtrT< const PerigeeSurface >	assocSurf
	)

Definition at line 32 of file VertexOnTrack.cxx.

  : Trk::MeasurementBase(std::move(locpars), std::move(locerr))
  , PerigeeSurfacePtrHolder(assocSurf.release())
  , m_globalPosition(std::nullopt)
{}

VertexOnTrack() [6/6]

Trk::VertexOnTrack::VertexOnTrack	(	const Trk::RecVertex &	rvertex,
		const Trk::Perigee &	mperigee
	)

Constructor from: RedVertex, Perigee - the perigee is needed for the measurement frame.

Definition at line 42 of file VertexOnTrack.cxx.

  : Trk::MeasurementBase()
  , PerigeeSurfacePtrHolder(perigee.associatedSurface())
  , m_globalPosition(Amg::Vector3D(perigee.position()))
{
  if ((rvertex.position() - perigee.associatedSurface().center()).mag() > 10e-5)
    throw GaudiException(
      "Inconsistent input data, Perigee not expressed at vertex!",
      "Trk::VertexOnTrack",
      StatusCode::RECOVERABLE);
 
  // the local parameters are by definition at (0,0)
  Amg::Vector2D localPosition(0, 0);
  m_localParams = Trk::LocalParameters(localPosition);
 
  // transform Cartesian (x,y,z) to perigee (d0,z0)
  Amg::MatrixX jacobian(2, 3);
  jacobian.setZero();
  double ptInv = 1. / perigee.momentum().perp();
  jacobian(0, 0) = -ptInv * perigee.momentum().y();
  jacobian(0, 1) = ptInv * perigee.momentum().x();
  jacobian(1, 2) = 1.0;
  // the covariance on matrix of the vertex
  const Amg::MatrixX& vtxCov = rvertex.covariancePosition();
  // the local coordinate
  m_localCovariance = vtxCov.similarity(jacobian);
}

Member Function Documentation

associatedSurface()

const PerigeeSurface & Trk::VertexOnTrack::associatedSurface ( ) const

inlinefinaloverridevirtual

returns the surface for the local to global transformation

• interface from MeasurementBase

Implements Trk::MeasurementBase.

Definition at line 117 of file VertexOnTrack.h.

{
  return *m_associatedSurface;
}

clone()

VertexOnTrack * Trk::VertexOnTrack::clone ( ) const

inlinefinaloverridevirtual

Pseudo-constructor, needed to avoid excessive RTTI.

Implements Trk::MeasurementBase.

Definition at line 111 of file VertexOnTrack.h.

{
  return new VertexOnTrack(*this);
}

cloneHelper()

template<typename S >

static const S* Trk::SurfacePtrHolderImpl< S >::cloneHelper ( const S *  input )

inlinestaticinherited

Helper for cloning or not when we need depending on if the surface isFree.

Definition at line 147 of file SurfaceHolderImpl.h.

  {
    return (input && input->isFree() ? input->clone() : input);
  }

destroySurface()

template<typename S >

void Trk::SurfacePtrHolderImpl< S >::destroySurface ( )

inlinenoexceptinherited

destroySurface deletes the ptr if not null and the surface isFree Usefull also for testing

Definition at line 128 of file SurfaceHolderImpl.h.

  {
    if (m_associatedSurface && m_associatedSurface->isFree()) {
      delete m_associatedSurface;
    }
    //
    m_associatedSurface = nullptr;
  }

dump() [1/2]

MsgStream & Trk::VertexOnTrack::dump ( MsgStream &  out ) const

finaloverridevirtual

returns the some information about this VertexOnTrack.

Implements Trk::MeasurementBase.

Definition at line 81 of file VertexOnTrack.cxx.

{
  std::string name(typeid(*this).name());
  sl << "Concrete dump method not implemented - using base class" << std::endl;
  sl << name << "\t  local position = " << this->localParameters() << std::endl;
  sl << name << "\t  global position ( " << this->globalPosition().x() << " , "
     << this->globalPosition().y() << " , " << this->globalPosition().z()
     << " ) " << std::endl;
  sl << name << "\t  has Error Matrix: " << std::endl;
  sl << this->localCovariance() << std::endl;
  sl << name << "\t  has associated surface:" << std::endl;
  sl << this->associatedSurface() << std::endl;
  return sl;
}

dump() [2/2]

std::ostream & Trk::VertexOnTrack::dump ( std::ostream &  out ) const

finaloverridevirtual

returns the some information about this VertexOnTrack.

Implements Trk::MeasurementBase.

Definition at line 97 of file VertexOnTrack.cxx.

{
  std::string name(typeid(*this).name());
  sl << "Concrete dump method not implemented - using base class" << std::endl;
  sl << name << "\t  local position = " << this->localParameters() << std::endl;
  sl << name << "\t  global position ( " << this->globalPosition().x() << " , "
     << this->globalPosition().y() << " , " << this->globalPosition().z()
     << " ) " << std::endl;
  sl << name << "\t  has Error Matrix: " << std::endl;
  sl << this->localCovariance() << std::endl;
  sl << name << "\t  has associated surface:" << std::endl;
  sl << this->associatedSurface() << std::endl;
  return sl;
}

globalPosition()

const Amg::Vector3D & Trk::VertexOnTrack::globalPosition ( ) const

finaloverridevirtual

Interface method to get the global Position.

• interface from MeasurementBase

Implements Trk::MeasurementBase.

Definition at line 72 of file VertexOnTrack.cxx.

{
  if (m_globalPosition) {
    return *m_globalPosition;
  }
  return INVALID_VECTOR3D;
}

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]

VertexOnTrack& Trk::VertexOnTrack::operator= ( const VertexOnTrack &  )

default

operator=() [2/2]

VertexOnTrack& Trk::VertexOnTrack::operator= ( VertexOnTrack &&  )

defaultnoexcept

release()

template<typename S >

const S* Trk::SurfacePtrHolderImpl< S >::release ( )

inlinenoexceptinherited

release ala unique_ptr release

Definition at line 139 of file SurfaceHolderImpl.h.

  {
    const S* tmp = m_associatedSurface;
    m_associatedSurface = nullptr;
    return tmp;
  }

surfacePtr()

template<typename S >

const S* Trk::SurfacePtrHolderImpl< S >::surfacePtr ( )

inlineinherited

return the ptr we hold useful for tests

Definition at line 137 of file SurfaceHolderImpl.h.

{ return m_associatedSurface; }

type()

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

inlinefinaloverridevirtual

Extended method checking the type.

Implements Trk::MeasurementBase.

Definition at line 93 of file VertexOnTrack.h.

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

uniqueClone()

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

inline

NVI clone returning unique_ptr.

Definition at line 79 of file VertexOnTrack.h.

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

Friends And Related Function Documentation

::TrackCollectionCnv

friend class ::TrackCollectionCnv

friend

Definition at line 47 of file VertexOnTrack.h.

Member Data Documentation

m_associatedSurface

template<typename S >

const S* Trk::SurfacePtrHolderImpl< S >::m_associatedSurface = nullptr

protectedinherited

Definition at line 153 of file SurfaceHolderImpl.h.

m_globalPosition

std::optional<Amg::Vector3D> Trk::VertexOnTrack::m_globalPosition = std::nullopt

protected

Global position of the VoT.

Definition at line 107 of file VertexOnTrack.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.

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

• VertexOnTrack.h
• VertexOnTrack.cxx