Trk::RecVertex Class Reference

Trk::RecVertex inherits from Trk::Vertex. More...

#include <RecVertex.h>

Inheritance diagram for Trk::RecVertex:

Collaboration diagram for Trk::RecVertex:

Public Member Functions
	RecVertex ()
	Default constructor, if called initializes a RecVertex with all data members set to 0.
	RecVertex (const Vertex &pos)
	Constructor from a Vertex class.
	RecVertex (const Amg::Vector3D &pos, const AmgSymMatrix(3) &cov, const double ndf=0., const double chi2=0.)
	Constructs a RecVertex with position, covariance, ndf, dhi2 and ntrk.
	RecVertex (const Amg::Vector3D &pos, const double ndf=0., const double chi2=0.)
	Constructs a RecVertex with position, default covariance, ndf, dhi2 and ntrk.
	RecVertex (const RecVertex &)=default
	Copy constructor and assignement operator.
RecVertex &	operator= (const RecVertex &)=default
	RecVertex (RecVertex &&)=default
	Move constructor and assignment operator.
RecVertex &	operator= (RecVertex &&)=default
virtual MsgStream &	dump (MsgStream &sl) const
	Output Method for MsgStream, to be overloaded by child classes.
virtual std::ostream &	dump (std::ostream &sl) const
	Output Method for std::ostream, to be overloaded by child classes.
virtual	~RecVertex ()
	Destructor.
const	AmgSymMatrix (3) &covariancePosition() const
	Weight and covariance matrix access method.
const Trk::FitQuality &	fitQuality () const
	Fit quality access method.
void	scaleError (float factor)
	Error scaling method.
const Amg::Vector3D &	position () const
	return position of vertex

Static Public Member Functions
static std::size_t	numberOfInstantiations ()

Static Public Attributes
static std::atomic_size_t	s_numberOfInstantiations

Private Member Functions
	AmgSymMatrix (3) m_positionCovariance
	covariance matrix on vertex position

Private Attributes
Trk::FitQuality	m_fitQuality
Amg::Vector3D	m_position
	vertex position

Friends
class	::RecVertexCnv_p1

Detailed Description

Trk::RecVertex inherits from Trk::Vertex.

begin : Autumn 2003
changes : 11.02.04 added docu
changes : 9/2/06 Giacinto Piacquadio - added support for non integer ndf < #Tracks * 5 - 3
changes : 05/12/06 Kiril.nosp@m.l.Pr.nosp@m.okofi.nosp@m.ev@c.nosp@m.ern.c.nosp@m.h - EDN cleanup and change to the FitQuality

In addition to the vertex position, defined in Vertex class, it contains its error matrix, which can be retrieved as covariance or weight matrix, and well as fit quality (in for of chi2 and ndf).

Authors

Andreas Wildauer (CERN PH-ATC) andre.nosp@m.as.w.nosp@m.ildau.nosp@m.er@c.nosp@m.ern.c.nosp@m.h, Kiril.nosp@m.l.Pr.nosp@m.okofi.nosp@m.ev@c.nosp@m.ern.c.nosp@m.h, Giacinto Piacquadio

Definition at line 43 of file RecVertex.h.

Constructor & Destructor Documentation

RecVertex() [1/6]

Trk::RecVertex::RecVertex

(

)

Default constructor, if called initializes a RecVertex with all data members set to 0.

Definition at line 23 of file RecVertex.cxx.

                       :
    Vertex(), m_fitQuality(Trk::FitQuality(0.,0.)) {}

RecVertex() [2/6]

Trk::RecVertex::RecVertex

(

const Vertex &

pos

)

Constructor from a Vertex class.

ErrorMatrix will be 0,0,0.

Definition at line 26 of file RecVertex.cxx.

                                        :
      Vertex(pos),
      m_positionCovariance(3,3), 
      m_fitQuality(Trk::FitQuality(0.,0.))
  {
    m_positionCovariance.setZero();
  }

RecVertex() [3/6]

Trk::RecVertex::RecVertex	(	const Amg::Vector3D &	pos,
		const AmgSymMatrix(3) &	cov,
		const double	ndf = 0.,
		const double	chi2 = 0. )

Constructs a RecVertex with position, covariance, ndf, dhi2 and ntrk.

Definition at line 34 of file RecVertex.cxx.

                                                     :
                Vertex(pos), m_positionCovariance(cov), m_fitQuality(Trk::FitQuality(chi2,ndf))
                {}

RecVertex() [4/6]

Trk::RecVertex::RecVertex	(	const Amg::Vector3D &	pos,
		const double	ndf = 0.,
		const double	chi2 = 0. )

Constructs a RecVertex with position, default covariance, ndf, dhi2 and ntrk.

Definition at line 39 of file RecVertex.cxx.

                                                                                  :
    Vertex(pos), m_positionCovariance(3,3),
    m_fitQuality(Trk::FitQuality(chi2,ndf)) 
  {
    m_positionCovariance.setZero();
  }

RecVertex() [5/6]

Trk::RecVertex::RecVertex ( const RecVertex & )

default

Copy constructor and assignement operator.

RecVertex() [6/6]

Trk::RecVertex::RecVertex ( RecVertex && )

default

Move constructor and assignment operator.

~RecVertex()

Trk::RecVertex::~RecVertex ( )

virtualdefault

Destructor.

Member Function Documentation

AmgSymMatrix() [1/2]

const Trk::RecVertex::AmgSymMatrix

(

3

)

const &

Weight and covariance matrix access method.

return the covDeltaV matrix of the vertex fit

AmgSymMatrix() [2/2]

Trk::RecVertex::AmgSymMatrix ( 3 )

private

covariance matrix on vertex position

dump() [1/2]

MsgStream & Trk::RecVertex::dump ( MsgStream & sl ) const

virtual

Output Method for MsgStream, to be overloaded by child classes.

Reimplemented from Trk::Vertex.

Definition at line 46 of file RecVertex.cxx.

                                                {
    sl << "Trk::RecVertex: " << std::endl;
    Vertex::dump(sl);
    sl << Amg::toString(m_positionCovariance) << std::endl;
    sl << m_fitQuality << endmsg;
    return sl;
  }

dump() [2/2]

std::ostream & Trk::RecVertex::dump ( std::ostream & sl ) const

virtual

Output Method for std::ostream, to be overloaded by child classes.

Reimplemented from Trk::Vertex.

Definition at line 54 of file RecVertex.cxx.

                                                  {
    sl << "Trk::RecVertex: " << std::endl;
    Vertex::dump(sl);
    sl << Amg::toString(m_positionCovariance) << std::endl;
    sl << m_fitQuality << std::endl;
    return sl;
  }

fitQuality()

const Trk::FitQuality & Trk::RecVertex::fitQuality

(

)

const

Fit quality access method.

Definition at line 64 of file RecVertex.cxx.

  {return m_fitQuality;}

numberOfInstantiations()

std::size_t Trk::ObjectCounter< Trk::Vertex >::numberOfInstantiations ( )

inlinestaticinherited

Definition at line 25 of file TrkObjectCounter.h.

  {
#ifndef NDEBUG
    return s_numberOfInstantiations.load();
#endif
    return 0;
  }

operator=() [1/2]

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

default

operator=() [2/2]

RecVertex & Trk::RecVertex::operator= ( RecVertex && )

default

position()

const Amg::Vector3D & Trk::Vertex::position ( ) const

inherited

return position of vertex

Definition at line 63 of file Vertex.cxx.

{
  return m_position;
}

scaleError()

void Trk::RecVertex::scaleError

(

float

factor

)

Error scaling method.

Friends And Related Symbol Documentation

::RecVertexCnv_p1

friend class ::RecVertexCnv_p1

friend

Definition at line 113 of file RecVertex.h.

Member Data Documentation

m_fitQuality

Trk::FitQuality Trk::RecVertex::m_fitQuality

private

Definition at line 115 of file RecVertex.h.

m_position

Amg::Vector3D Trk::Vertex::m_position

privateinherited

vertex position

Definition at line 51 of file Tracking/TrkEvent/VxVertex/VxVertex/Vertex.h.

s_numberOfInstantiations

std::atomic_size_t Trk::ObjectCounter< Trk::Vertex >::s_numberOfInstantiations

inlinestaticinherited

Definition at line 22 of file TrkObjectCounter.h.

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

• RecVertex.h
• RecVertex.cxx