#include <Vertex.h>

Inheritance diagram for reco::Vertex:

Classes
class	TrackEqual

Public Types
enum	{ dimension = 3, dimension4D = 4 }
	error matrix dimension More...

enum	{ size = dimension * (dimension + 1) / 2, size4D = (dimension4D) * (dimension4D + 1) / 2 }
	matix size More...

typedef math::Error< dimension >::type	CovarianceMatrix
	covariance error matrix (3x3) More...

typedef math::Error< dimension4D >::type	CovarianceMatrix4D
	covariance error matrix (4x4) More...

typedef math::Error< dimension >::type	Error
	covariance error matrix (3x3) More...

typedef math::Error< dimension4D >::type	Error4D
	covariance error matrix (4x4) More...

typedef unsigned int	index
	index type More...

typedef math::XYZPoint	Point
	point in the space More...

typedef std::vector< TrackBaseRef >::const_iterator	trackRef_iterator
	The iteratator for the vector<TrackRef> More...

Public Member Functions
void	add (const TrackBaseRef &r, const Track &refTrack, float w=1.0)
	add the original a Track(reference) and the smoothed Track More...

template<typename Ref >
void	add (Ref const &r, float w=1.0)
	add a reference to a Track More...

double	chi2 () const
	chi-squares More...

CovarianceMatrix	covariance () const
	return SMatrix More...

double	covariance (int i, int j) const
	(i, j)-th element of error matrix, i, j = 0, ... 2 More...

CovarianceMatrix4D	covariance4D () const
	return SMatrix 4D More...

Error	error () const
	return SMatrix More...

Error4D	error4D () const
	return SMatrix More...

void	fill (CovarianceMatrix &v) const
	fill SMatrix More...

void	fill (CovarianceMatrix4D &v) const
	4D version More...

bool	hasRefittedTracks () const
	Checks whether refitted tracks are stored. More...

bool	isFake () const

bool	isValid () const
	Tells whether the vertex is valid. More...

double	ndof () const

double	normalizedChi2 () const
	chi-squared divided by n.d.o.f. More...

unsigned int	nTracks (float minWeight=0.5) const
	Returns the number of tracks in the vertex with weight above minWeight. More...

TrackBaseRef	originalTrack (const Track &refTrack) const

math::XYZTLorentzVectorD	p4 (float mass=0.13957018, float minWeight=0.5) const
	Returns the four momentum of the sum of the tracks, assuming the given mass for the decay products. More...

const Point &	position () const
	position More...

Track	refittedTrack (const TrackBaseRef &track) const

Track	refittedTrack (const TrackRef &track) const

const std::vector< Track > &	refittedTracks () const
	Returns the container of refitted tracks. More...

void	removeTracks ()

void	reserve (int size, bool refitAsWell=false)
	reserve space for the tracks More...

double	t () const
	t coordinate More...

double	tError () const
	error on t More...

const TrackBaseRef &	trackRefAt (size_t idx) const
	python friendly track getting More...

const auto &	tracks () const

trackRef_iterator	tracks_begin () const
	first iterator over tracks More...

trackRef_iterator	tracks_end () const
	last iterator over tracks More...

size_t	tracksSize () const
	number of tracks More...

template<typename TREF >
float	trackWeight (const TREF &r) const
	returns the weight with which a Track has contributed to the vertex-fit. More...

	Vertex ()

	Vertex (const Point &, const Error &)
	Constructor for a fake vertex. More...

	Vertex (const Point &, const Error &, double chi2, double ndof, size_t size)
	constructor for a valid vertex, with all data More...

	Vertex (const Point &, const Error4D &, double time, double chi2, double ndof, size_t size)
	constructor for a valid vertex, with all data 4D More...

	Vertex (const Point &, const Error4D &, double)
	Constructor for a fake vertex. 4D. More...

double	x () const
	x coordinate More...

double	xError () const
	error on x More...

double	y () const
	y coordinate More...

double	yError () const
	error on y More...

double	z () const
	z coordinate More...

double	zError () const
	error on z More...

Private Member Functions
index	idx (index i, index j) const
	position index More...

Private Attributes
float	chi2_
	chi-sqared More...

float	covariance_ [size4D]
	covariance matrix (4x4) as vector More...

float	ndof_
	number of degrees of freedom More...

Point	position_
	position More...

std::vector< Track >	refittedTracks_
	The vector of refitted tracks. More...

double	time_

std::vector< TrackBaseRef >	tracks_
	reference to tracks More...

bool	validity_
	tells wether the vertex is really valid. More...

std::vector< uint8_t >	weights_

Detailed Description

A reconstructed Vertex providing position, error, chi2, ndof and reconstrudted tracks. The vertex can be valid, fake, or invalid. A valid vertex is one which has been obtained from a vertex fit of tracks, and all data is meaningful A fake vertex is a vertex which was not made out of a proper fit with tracks, but still has a position and error (chi2 and ndof are null). For a primary vertex, it could simply be the beam line. A fake vertex is considered valid. An invalid vertex has no meaningful data.

Author: Luca Lista, INFN

Definition at line 35 of file Vertex.h.

Member Typedef Documentation

◆ CovarianceMatrix

typedef math::Error<dimension>::type reco::Vertex::CovarianceMatrix

covariance error matrix (3x3)

Definition at line 46 of file Vertex.h.

◆ CovarianceMatrix4D

typedef math::Error<dimension4D>::type reco::Vertex::CovarianceMatrix4D

covariance error matrix (4x4)

Definition at line 50 of file Vertex.h.

◆ Error

typedef math::Error<dimension>::type reco::Vertex::Error

covariance error matrix (3x3)

Definition at line 44 of file Vertex.h.

◆ Error4D

typedef math::Error<dimension4D>::type reco::Vertex::Error4D

covariance error matrix (4x4)

Definition at line 48 of file Vertex.h.

◆ index

typedef unsigned int reco::Vertex::index

index type

Definition at line 54 of file Vertex.h.

◆ Point

typedef math::XYZPoint reco::Vertex::Point

point in the space

Definition at line 40 of file Vertex.h.

◆ trackRef_iterator

typedef std::vector<TrackBaseRef>::const_iterator reco::Vertex::trackRef_iterator

The iteratator for the vector<TrackRef>

Definition at line 38 of file Vertex.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

error matrix dimension

Enumerator
dimension
dimension4D

Definition at line 42 of file Vertex.h.

42 { dimension = 3, dimension4D = 4 };

◆ anonymous enum

anonymous enum

matix size

Enumerator
size
size4D

Definition at line 52 of file Vertex.h.

52 { size = dimension * (dimension + 1) / 2, size4D = (dimension4D) * (dimension4D + 1) / 2 };

Constructor & Destructor Documentation

◆ Vertex() [1/5]

reco::Vertex::Vertex ( )

inline

default constructor - The vertex will not be valid. Position, error, chi2, ndof will have random entries, and the vectors of tracks will be empty Use the isValid method to check that your vertex is valid.

Definition at line 58 of file Vertex.h.

              : chi2_(0.0), ndof_(0), position_(0., 0., 0.), time_(0.) {
       validity_ = false;
       for (int i = 0; i < size4D; ++i)
         covariance_[i] = 0.;
     }

References covariance_, mps_fire::i, size4D, and validity_.

◆ Vertex() [2/5]

Vertex::Vertex	(	const Point &	p,
		const Error &	err
	)

Constructor for a fake vertex.

Definition at line 34 of file Vertex.cc.

                                                : chi2_(0.0), ndof_(0), position_(p), time_(0.) {
   index idx = 0;
   for (index i = 0; i < dimension4D; ++i) {
     for (index j = 0; j <= i; ++j) {
       if (i == dimension || j == dimension) {
         covariance_[idx++] = 0.0;
       } else {
         covariance_[idx++] = err(i, j);
       }
     }
   }
   validity_ = true;
 }

References covariance_, dimension, dimension4D, submitPVResolutionJobs::err, mps_fire::i, idx(), dqmiolumiharvest::j, and validity_.

◆ Vertex() [3/5]

Vertex::Vertex	(	const Point &	p,
		const Error4D &	err,
		double	time
	)

Constructor for a fake vertex. 4D.

Definition at line 48 of file Vertex.cc.

                                                               : chi2_(0.0), ndof_(0), position_(p), time_(time) {
   index idx = 0;
   for (index i = 0; i < dimension + 1; ++i)
     for (index j = 0; j <= i; ++j)
       covariance_[idx++] = err(i, j);
   validity_ = true;
 }

References covariance_, dimension, submitPVResolutionJobs::err, mps_fire::i, idx(), dqmiolumiharvest::j, and validity_.

◆ Vertex() [4/5]

Vertex::Vertex	(	const Point &	p,
		const Error &	err,
		double	chi2,
		double	ndof,
		size_t	size
	)

constructor for a valid vertex, with all data

Definition at line 8 of file Vertex.cc.

     : chi2_(chi2), ndof_(ndof), position_(p), time_(0.) {
   tracks_.reserve(size);
   index idx = 0;
   for (index i = 0; i < dimension4D; ++i) {
     for (index j = 0; j <= i; ++j) {
       if (i == dimension || j == dimension) {
         covariance_[idx++] = 0.0;
       } else {
         covariance_[idx++] = err(i, j);
       }
     }
   }
   validity_ = true;
 }

References covariance_, dimension, dimension4D, submitPVResolutionJobs::err, mps_fire::i, idx(), dqmiolumiharvest::j, size, tracks_, and validity_.

◆ Vertex() [5/5]

Vertex::Vertex	(	const Point &	p,
		const Error4D &	err,
		double	time,
		double	chi2,
		double	ndof,
		size_t	size
	)

constructor for a valid vertex, with all data 4D

Definition at line 24 of file Vertex.cc.

     : chi2_(chi2), ndof_(ndof), position_(p), time_(time) {
   tracks_.reserve(size4D);
   index idx = 0;
   for (index i = 0; i < dimension4D; ++i)
     for (index j = 0; j <= i; ++j)
       covariance_[idx++] = err(i, j);
   validity_ = true;
 }

References covariance_, dimension4D, submitPVResolutionJobs::err, mps_fire::i, idx(), dqmiolumiharvest::j, size4D, tracks_, and validity_.

Member Function Documentation

◆ add() [1/2]

void Vertex::add	(	const TrackBaseRef &	r,
		const Track &	refTrack,
		float	w = `1.0`
	)

add the original a Track(reference) and the smoothed Track

Definition at line 69 of file Vertex.cc.

                                                                       {
   tracks_.push_back(r);
   refittedTracks_.push_back(refTrack);
   weights_.push_back(w * 255);
 }

References alignCSCRings::r, refittedTracks_, tracks_, w, and weights_.

Referenced by counter.Counter::register(), SequenceTypes.Task::remove(), and SequenceTypes.Task::replace().

◆ add() [2/2]

template<typename Ref >

void reco::Vertex::add	(	Ref const &	r,
		float	w = `1.0`
	)

inline

add a reference to a Track

Definition at line 86 of file Vertex.h.

                                           {
       tracks_.emplace_back(r);
       weights_.emplace_back(w * 255.f);
     }

References f, alignCSCRings::r, tracks_, w, and weights_.

Referenced by reco::PFDisplacedVertex::addElement(), counter.Counter::register(), SequenceTypes.Task::remove(), and SequenceTypes.Task::replace().

◆ chi2()

double reco::Vertex::chi2 ( void ) const

inline

chi-squares

Definition at line 116 of file Vertex.h.

116 { return chi2_; }

References chi2_.

Referenced by BPHGenericVertexSelect::accept(), BPHMonitor::analyze(), TkConvValidator::analyze(), ConversionProducer::buildCollection(), ConversionLessByChi2(), reco::PFDisplacedVertex::Dump(), V0Fitter::fitAll(), PFDisplacedVertexFinder::fitVertexFromSeed(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), and ConeIsolation::produce().

◆ covariance() [1/2]

CovarianceMatrix reco::Vertex::covariance ( void ) const

inline

return SMatrix

Definition at line 150 of file Vertex.h.

                                         {
       Error m;
       fill(m);
       return m;
     }

References fill(), and visualization-live-secondInstance_cfg::m.

Referenced by tError(), xError(), yError(), and zError().

◆ covariance() [2/2]

double reco::Vertex::covariance	(	int	i,
		int	j
	)		const

inline

(i, j)-th element of error matrix, i, j = 0, ... 2

Definition at line 148 of file Vertex.h.

148 { return covariance_[idx(i, j)]; }

References covariance_, mps_fire::i, idx(), and dqmiolumiharvest::j.

Referenced by VertexDistance::compatibility(), VertexDistance::distance(), V0Fitter::fitAll(), and reco::V0Candidate::vtxCovariance().

◆ covariance4D()

CovarianceMatrix4D reco::Vertex::covariance4D ( ) const

inline

return SMatrix 4D

Definition at line 156 of file Vertex.h.

                                             {
       Error4D m;
       fill(m);
       return m;
     }

References fill(), and visualization-live-secondInstance_cfg::m.

◆ error()

Error reco::Vertex::error ( ) const

inline

return SMatrix

Definition at line 163 of file Vertex.h.

                         {
       Error m;
       fill(m);
       return m;
     }

References fill(), and visualization-live-secondInstance_cfg::m.

Referenced by Page1Parser.Page1Parser::check_for_whole_start_tag(), VertexAnalysis::dist2D(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), ConeIsolation::produce(), and Onia2MuMuPAT::produce().

◆ error4D()

Error4D reco::Vertex::error4D ( ) const

inline

return SMatrix

Definition at line 169 of file Vertex.h.

                             {
       Error4D m;
       fill(m);
       return m;
     }

References fill(), and visualization-live-secondInstance_cfg::m.

◆ fill() [1/2]

void reco::Vertex::fill ( CovarianceMatrix & v ) const

fill SMatrix

Referenced by covariance(), covariance4D(), error(), error4D(), and fill().

◆ fill() [2/2]

void Vertex::fill ( CovarianceMatrix4D & v ) const

4D version

Definition at line 56 of file Vertex.cc.

                                   {
   Error4D temp;
   fill(temp);
   err = temp.Sub<Error>(0, 0);
 }

References submitPVResolutionJobs::err, fill(), and groupFilesInBlocks::temp.

◆ hasRefittedTracks()

bool reco::Vertex::hasRefittedTracks ( ) const

inline

Checks whether refitted tracks are stored.

Definition at line 181 of file Vertex.h.

181 { return !refittedTracks_.empty(); }

References refittedTracks_.

Referenced by nTracks(), p4(), and Onia2MuMuPAT::produce().

◆ idx()

index reco::Vertex::idx	(	index	i,
		index	j
	)		const

inlineprivate

position index

Definition at line 232 of file Vertex.h.

                                       {
       int a = (i <= j ? i : j), b = (i <= j ? j : i);
       return b * (b + 1) / 2 + a;
     }

References a, b, mps_fire::i, and dqmiolumiharvest::j.

Referenced by covariance(), ntupleDataFormat.TrackMatchInfo::track(), ntupleDataFormat.TrackingParticleMatchInfo::trackingParticle(), trackRefAt(), and Vertex().

◆ isFake()

bool reco::Vertex::isFake ( ) const

inline

Tells whether a Vertex is fake, i.e. not a vertex made out of a proper fit with tracks. For a primary vertex, it could simply be the beam line.

Definition at line 76 of file Vertex.h.

76 { return (chi2_ == 0 && ndof_ == 0 && tracks_.empty()); }

References chi2_, ndof_, and tracks_.

Referenced by TrackingMonitor::analyze(), FSQDQM::analyze(), SplitVertexResolution::analyze(), and BVertexFilterT< VTX >::filter().

◆ isValid()

bool reco::Vertex::isValid ( void ) const

inline

Tells whether the vertex is valid.

Definition at line 72 of file Vertex.h.

72 { return validity_; }

References validity_.

Referenced by ntupleDataFormat._Object::_checkIsValid(), TkConvValidator::analyze(), DiMuonVertexValidation::analyze(), DiElectronVertexValidation::analyze(), ConversionProducer::buildCollection(), ConvertedPhotonProducer::buildCollections(), core.AutoHandle.AutoHandle::ReallyLoad(), and BPHDecayVertex::validVertex().

◆ ndof()

double reco::Vertex::ndof ( ) const

inline

Number of degrees of freedom Meant to be Double32_t for soft-assignment fitters: tracks may contribute to the vertex with fractional weights. The ndof is then = to the sum of the track weights. see e.g. CMS NOTE-2006/032, CMS NOTE-2004/002

Definition at line 123 of file Vertex.h.

123 { return ndof_; }

References ndof_.

Referenced by BPHGenericVertexSelect::accept(), CMSDAS11DijetAnalyzer::analyze(), CMSDAS11DijetTestAnalyzer::analyze(), SiPixelTrackResidualSource::analyze(), BPHMonitor::analyze(), TkConvValidator::analyze(), TrackingMonitor::analyze(), SplitVertexResolution::analyze(), ConversionProducer::buildCollection(), ConversionLessByChi2(), reco::PFDisplacedVertex::Dump(), V0Fitter::fitAll(), PFDisplacedVertexFinder::fitVertexFromSeed(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), and ConeIsolation::produce().

◆ normalizedChi2()

double reco::Vertex::normalizedChi2 ( ) const

inline

chi-squared divided by n.d.o.f.

Definition at line 125 of file Vertex.h.

125 { return ndof_ != 0 ? chi2_ / ndof_ : chi2_ * 1e6; }

References chi2_, and ndof_.

Referenced by FSQDQM::analyze(), reco::PFDisplacedVertex::Dump(), V0Fitter::fitAll(), HLTmumutkFilter::hltFilter(), and HLTmumutktkFilter::hltFilter().

◆ nTracks()

unsigned int Vertex::nTracks ( float minWeight = 0.5 ) const

Returns the number of tracks in the vertex with weight above minWeight.

Definition at line 131 of file Vertex.cc.

                                                   {
   int n = 0;
   if (hasRefittedTracks()) {
     for (std::vector<Track>::const_iterator iter = refittedTracks_.begin(); iter != refittedTracks_.end(); ++iter)
       if (trackWeight(originalTrack(*iter)) >= minWeight)
         n++;
   } else {
     for (std::vector<reco::TrackBaseRef>::const_iterator iter = tracks_begin(); iter != tracks_end(); iter++)
       if (trackWeight(*iter) >= minWeight)
         n++;
   }
   return n;
 }

References hasRefittedTracks(), fftjetcommon_cfi::minWeight, dqmiodumpmetadata::n, originalTrack(), refittedTracks_, tracks_begin(), tracks_end(), and trackWeight().

Referenced by SplitVertexResolution::analyze().

◆ originalTrack()

TrackBaseRef Vertex::originalTrack ( const Track & refTrack ) const

Returns the original track which corresponds to a particular refitted Track Throws an exception if now refitted tracks are stored ot the track is not found in the list

Definition at line 81 of file Vertex.cc.

                                                               {
   if (refittedTracks_.empty())
     throw cms::Exception("Vertex") << "No refitted tracks stored in vertex\n";
   std::vector<Track>::const_iterator it = find_if(refittedTracks_.begin(), refittedTracks_.end(), TrackEqual(refTrack));
   if (it == refittedTracks_.end())
     throw cms::Exception("Vertex") << "Refitted track not found in list\n";
   size_t pos = it - refittedTracks_.begin();
   return tracks_[pos];
 }

References refittedTracks_, and tracks_.

Referenced by PFDisplacedVertexFinder::commonTracks(), PF_PU_AssoMapAlgos::FindNIVertex(), reco::PFDisplacedVertex::isIncomingTrack(), reco::PFDisplacedVertex::isMergedTrack(), reco::PFDisplacedVertex::isOutgoingTrack(), reco::PFDisplacedVertex::isPrimaryTrack(), reco::PFDisplacedVertex::isSecondaryTrack(), reco::PFDisplacedVertex::momentum(), nTracks(), p4(), Onia2MuMuPAT::produce(), reco::PFDisplacedVertex::trackHitFullInfo(), and reco::PFDisplacedVertex::trackPosition().

◆ p4()

math::XYZTLorentzVectorD Vertex::p4	(	float	mass = `0.13957018`,
		float	minWeight = `0.5`
	)		const

Returns the four momentum of the sum of the tracks, assuming the given mass for the decay products.

Definition at line 103 of file Vertex.cc.

                                                                    {
   math::XYZTLorentzVectorD sum;
   ROOT::Math::LorentzVector<ROOT::Math::PxPyPzM4D<double> > vec;
  
   if (hasRefittedTracks()) {
     for (std::vector<Track>::const_iterator iter = refittedTracks_.begin(); iter != refittedTracks_.end(); ++iter) {
       if (trackWeight(originalTrack(*iter)) >= minWeight) {
         vec.SetPx(iter->px());
         vec.SetPy(iter->py());
         vec.SetPz(iter->pz());
         vec.SetM(mass);
         sum += vec;
       }
     }
   } else {
     for (std::vector<reco::TrackBaseRef>::const_iterator iter = tracks_begin(); iter != tracks_end(); iter++) {
       if (trackWeight(*iter) >= minWeight) {
         vec.SetPx((*iter)->px());
         vec.SetPy((*iter)->py());
         vec.SetPz((*iter)->pz());
         vec.SetM(mass);
         sum += vec;
       }
     }
   }
   return sum;
 }

References hasRefittedTracks(), EgHLTOffHistBins_cfi::mass, fftjetcommon_cfi::minWeight, originalTrack(), refittedTracks_, tracks_begin(), tracks_end(), and trackWeight().

Referenced by Tau.Tau::dxy_approx(), Tau.Tau::dz(), Lepton.Lepton::p4WithFSR(), and reco::Conversion::refittedPair4Momentum().

◆ position()

const Point& reco::Vertex::position ( ) const

inline

position

Definition at line 127 of file Vertex.h.

127 { return position_; }

References position_.

Referenced by CMSDAS11DijetAnalyzer::analyze(), CMSDAS11DijetTestAnalyzer::analyze(), TrackTypeMonitor::analyze(), ElectronConversionRejectionValidator::analyze(), TkConvValidator::analyze(), TrackToTrackComparisonHists::analyze(), TrackingMonitor::analyze(), DiElectronVertexValidation::analyze(), FSQDQM::analyze(), PackedCandidateTrackValidator::analyze(), pat::LeptonVertexSignificance::calculate(), reco::PFMETProducerMVA::chargedFracInCone(), PFAlgo::checkGoodTrackDeadHcal(), VertexDistance::compatibility(), reco::PFMETProducerMVA::computePFCandidateInfo(), JetCoreMCtruthSeedGenerator::coreHitsFilling(), JetCoreMCtruthSeedGenerator::DetectorSelector(), DeepCoreSeedGenerator::DetectorSelector(), VertexDistance::distance(), reco::PFDisplacedVertex::Dump(), BPHWriteSpecificDecay::fill(), SingleTopTChannelLepton_miniAOD::MonitorEnsemble::fill(), TopSingleLepton_miniAOD::MonitorEnsemble::fill(), TopSingleLepton::MonitorEnsemble::fill(), SingleTopTChannelLepton::MonitorEnsemble::fill(), DeepBoostedJetTagInfoProducer::fillParticleFeatures(), PFEGammaAlgo::fillPFCandidates(), TrackingFailureFilter::filter(), PF_PU_AssoMapAlgos::FindNIVertex(), L1TTauOffline::getPrimaryVertex(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), isTightMuonCustom(), PhotonConversionTrajectorySeedProducerFromQuadrupletsAlgo::loop(), L3MuonTrajectoryBuilder::makeTkCandCollection(), NuclearTrackCorrector::newTrajNeeded(), TOFPIDProducer::produce(), Onia2MuMuPAT::produce(), DeepCoreSeedGenerator::produce(), PFAlgo::recoTracksNotHCAL(), reco::PFDisplacedVertex::setPrimaryDirection(), reco::V0Candidate::setRecoVertex(), VertexDistanceXY::signedDistance(), VertexDistance3D::signedDistance(), JetCoreMCtruthSeedGenerator::splittedClusterDirections(), DeepCoreSeedGenerator::splittedClusterDirections(), and ConversionProducer::trackD0Cut().

◆ refittedTrack() [1/2]

Track Vertex::refittedTrack ( const TrackBaseRef & track ) const

Returns the refitted track which corresponds to a particular original Track Throws an exception if now refitted tracks are stored ot the track is not found in the list

Definition at line 91 of file Vertex.cc.

                                                            {
   if (refittedTracks_.empty())
     throw cms::Exception("Vertex") << "No refitted tracks stored in vertex\n";
   trackRef_iterator it = find(tracks_begin(), tracks_end(), track);
   if (it == tracks_end())
     throw cms::Exception("Vertex") << "Track not found in list\n";
   size_t pos = it - tracks_begin();
   return refittedTracks_[pos];
 }

References Exception, spr::find(), refittedTracks_, HLT_FULL_cff::track, tracks_begin(), and tracks_end().

Referenced by refittedTrack(), and reco::PFDisplacedVertex::trackPosition().

◆ refittedTrack() [2/2]

Track Vertex::refittedTrack ( const TrackRef & track ) const

Returns the refitted track which corresponds to a particular original Track Throws an exception if now refitted tracks are stored ot the track is not found in the list

Definition at line 101 of file Vertex.cc.

101 { return refittedTrack(TrackBaseRef(track)); }

References refittedTrack(), and HLT_FULL_cff::track.

◆ refittedTracks()

const std::vector<Track>& reco::Vertex::refittedTracks ( ) const

inline

Returns the container of refitted tracks.

Definition at line 196 of file Vertex.h.

196 { return refittedTracks_; }

References refittedTracks_.

Referenced by TkConvValidator::analyze(), PFDisplacedVertexFinder::commonTracks(), PF_PU_AssoMapAlgos::FindNIVertex(), reco::PFDisplacedVertex::momentum(), Onia2MuMuPAT::produce(), reco::PFDisplacedVertex::totalCharge(), and reco::PFDisplacedVertex::trackPosition().

◆ removeTracks()

void Vertex::removeTracks ( )

Definition at line 75 of file Vertex.cc.

                           {
   weights_.clear();
   tracks_.clear();
   refittedTracks_.clear();
 }

References refittedTracks_, tracks_, and weights_.

Referenced by reco::PFDisplacedVertex::cleanTracks(), and PFDisplacedVertexFinder::fitVertexFromSeed().

◆ reserve()

void reco::Vertex::reserve	(	int	size,
		bool	refitAsWell = `false`
	)

inline

reserve space for the tracks

Definition at line 78 of file Vertex.h.

                                                      {
       tracks_.reserve(size);
       if (refitAsWell)
         refittedTracks_.reserve(size);
       weights_.reserve(size);
     }

References refittedTracks_, size, tracks_, and weights_.

Referenced by Onia2MuMuPAT::produce().

◆ t()

double reco::Vertex::t ( ) const

inline

t coordinate

Definition at line 135 of file Vertex.h.

135 { return time_; }

References time_.

Referenced by reco::Vertex::TrackEqual::operator()(), TOFPIDProducer::produce(), and trackWeight().

◆ tError()

double reco::Vertex::tError ( ) const

inline

error on t

Definition at line 143 of file Vertex.h.

143 { return sqrt(covariance(3, 3)); }

References covariance(), and mathSSE::sqrt().

◆ trackRefAt()

const TrackBaseRef& reco::Vertex::trackRefAt ( size_t idx ) const

inline

python friendly track getting

Definition at line 114 of file Vertex.h.

114 { return tracks_[idx]; }

References idx(), and tracks_.

◆ tracks()

const auto& reco::Vertex::tracks ( void ) const

inline

Definition at line 106 of file Vertex.h.

106 { return tracks_; }

References tracks_.

◆ tracks_begin()

trackRef_iterator reco::Vertex::tracks_begin ( ) const

inline

first iterator over tracks

Definition at line 108 of file Vertex.h.

108 { return tracks_.begin(); }

References tracks_.

Referenced by FSQDQM::analyze(), SplitVertexResolution::analyze(), calculateVertexSharedTracks(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), nTracks(), p4(), reco::NuclearInteraction::primaryTrack(), Onia2MuMuPAT::produce(), refittedTrack(), PFEGammaAlgo::removeOrLinkECALClustersToKFTracks(), reco::NuclearInteraction::secondaryTracks_begin(), AlignmentTrackFromVertexSelector::select(), and PrimaryVertexResolution::sortTracksByPt().

◆ tracks_end()

trackRef_iterator reco::Vertex::tracks_end ( ) const

inline

last iterator over tracks

Definition at line 110 of file Vertex.h.

110 { return tracks_.end(); }

References tracks_.

Referenced by FSQDQM::analyze(), SplitVertexResolution::analyze(), calculateVertexSharedTracks(), HLTmumutktkFilter::hltFilter(), nTracks(), p4(), Onia2MuMuPAT::produce(), refittedTrack(), PFEGammaAlgo::removeOrLinkECALClustersToKFTracks(), reco::NuclearInteraction::secondaryTracks_end(), AlignmentTrackFromVertexSelector::select(), and PrimaryVertexResolution::sortTracksByPt().

◆ tracksSize()

size_t reco::Vertex::tracksSize ( ) const

inline

number of tracks

Definition at line 112 of file Vertex.h.

112 { return tracks_.size(); }

References tracks_.

Referenced by PrimaryVertexResolution::analyze(), TrackingMonitor::analyze(), FSQDQM::analyze(), SplitVertexResolution::analyze(), HLTmumutkFilter::hltFilter(), HLTmumutktkFilter::hltFilter(), reco::PFDisplacedVertex::momentum(), ConeIsolation::produce(), Onia2MuMuPAT::produce(), reco::NuclearInteraction::secondaryTracksSize(), PrimaryVertexResolution::sortTracksByPt(), and reco::PFDisplacedVertex::totalCharge().

◆ trackWeight()

template<typename TREF >

float reco::Vertex::trackWeight ( const TREF & r ) const

inline

returns the weight with which a Track has contributed to the vertex-fit.

Definition at line 96 of file Vertex.h.

                                            {
       int i = 0;
       for (auto const &t : tracks_) {
         if ((r.id() == t.id()) & (t.key() == r.key()))
           return weights_[i] / 255.f;
         ++i;
       }
       return 0;
     }

References mps_fire::i, alignCSCRings::r, t(), tracks_, and weights_.

Referenced by nTracks(), p4(), and Onia2MuMuPAT::produce().

◆ x()

double reco::Vertex::x ( ) const

inline

◆ xError()

double reco::Vertex::xError ( ) const

inline

error on x

Definition at line 137 of file Vertex.h.

137 { return sqrt(covariance(0, 0)); }

References covariance(), and mathSSE::sqrt().

Referenced by FSQDQM::analyze(), SplitVertexResolution::analyze(), PhotonConversionTrajectorySeedProducerFromQuadrupletsAlgo::loop(), and PrimaryVertexResolution::Resolution::Resolution().

◆ y()

double reco::Vertex::y ( ) const

inline

◆ yError()

double reco::Vertex::yError ( ) const

inline

error on y

Definition at line 139 of file Vertex.h.

139 { return sqrt(covariance(1, 1)); }

References covariance(), and mathSSE::sqrt().

Referenced by FSQDQM::analyze(), SplitVertexResolution::analyze(), and PrimaryVertexResolution::Resolution::Resolution().

◆ z()

double reco::Vertex::z ( ) const

inline

z coordinate

Definition at line 133 of file Vertex.h.

133 { return position_.Z(); }

References position_.

Referenced by CMSDAS11DijetAnalyzer::analyze(), CMSDAS11DijetTestAnalyzer::analyze(), TrackingMonitor::analyze(), FSQDQM::analyze(), SplitVertexResolution::analyze(), GeneralPurposeTrackAnalyzer::analyze(), DMRChecker::analyze(), PFRecoTauTagInfoAlgorithm::buildPFTauTagInfo(), PFAlgo::egammaFilters(), PFEGammaAlgo::evaluateSingleLegMVA(), EwkElecTauHistManager::fillHistograms(), EwkMuTauHistManager::fillHistograms(), V0Fitter::fitAll(), BtoCharmDecayVertexMergerT< VTX >::flightDirection(), reco::PFDisplacedVertex::momentum(), geometryXMLparser.Alignable::pos(), ConeIsolation::produce(), EcalDetailedTimeRecHitProducer::produce(), ntupleDataFormat._HitObject::r3D(), PFAlgo::reconstructCluster(), PrimaryVertexResolution::Resolution::Resolution(), and reco::PFDisplacedVertex::setPrimaryDirection().

◆ zError()

double reco::Vertex::zError ( ) const

inline

error on z

Definition at line 141 of file Vertex.h.

141 { return sqrt(covariance(2, 2)); }

References covariance(), and mathSSE::sqrt().

Referenced by FSQDQM::analyze(), SplitVertexResolution::analyze(), pat::LeptonVertexSignificance::calculate(), PhotonConversionTrajectorySeedProducerFromQuadrupletsAlgo::loop(), and PrimaryVertexResolution::Resolution::Resolution().

Member Data Documentation

◆ chi2_

float reco::Vertex::chi2_

private

chi-sqared

Definition at line 215 of file Vertex.h.

Referenced by chi2(), isFake(), and normalizedChi2().

◆ covariance_

float reco::Vertex::covariance_[size4D]

private

covariance matrix (4x4) as vector

Definition at line 221 of file Vertex.h.

Referenced by covariance(), and Vertex().

◆ ndof_

float reco::Vertex::ndof_

private

number of degrees of freedom

Definition at line 217 of file Vertex.h.

Referenced by isFake(), ndof(), and normalizedChi2().

◆ position_

Point reco::Vertex::position_

private

position

Definition at line 219 of file Vertex.h.

Referenced by position(), x(), y(), and z().

◆ refittedTracks_

std::vector<Track> reco::Vertex::refittedTracks_

private

The vector of refitted tracks.

Definition at line 225 of file Vertex.h.

Referenced by add(), hasRefittedTracks(), nTracks(), originalTrack(), p4(), refittedTrack(), refittedTracks(), removeTracks(), and reserve().

◆ time_

double reco::Vertex::time_

private

Definition at line 229 of file Vertex.h.

Referenced by t().

◆ tracks_

std::vector<TrackBaseRef> reco::Vertex::tracks_

private

reference to tracks

Definition at line 223 of file Vertex.h.

Referenced by add(), isFake(), originalTrack(), removeTracks(), reserve(), trackRefAt(), tracks(), tracks_begin(), tracks_end(), tracksSize(), trackWeight(), and Vertex().

◆ validity_

bool reco::Vertex::validity_

private

tells wether the vertex is really valid.

Definition at line 228 of file Vertex.h.

Referenced by isValid(), and Vertex().

◆ weights_

std::vector<uint8_t> reco::Vertex::weights_

private

Definition at line 226 of file Vertex.h.

Referenced by add(), removeTracks(), reserve(), and trackWeight().

Classes

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ CovarianceMatrix

◆ CovarianceMatrix4D

◆ Error

◆ Error4D

◆ index

◆ Point

◆ trackRef_iterator

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

Constructor & Destructor Documentation

◆ Vertex() [1/5]

◆ Vertex() [2/5]

◆ Vertex() [3/5]

◆ Vertex() [4/5]

◆ Vertex() [5/5]

Member Function Documentation

◆ add() [1/2]

◆ add() [2/2]

◆ chi2()

◆ covariance() [1/2]

◆ covariance() [2/2]

◆ covariance4D()

◆ error()

◆ error4D()

◆ fill() [1/2]

◆ fill() [2/2]

◆ hasRefittedTracks()

◆ idx()

◆ isFake()

◆ isValid()

◆ ndof()

◆ normalizedChi2()

◆ nTracks()

◆ originalTrack()

◆ p4()

◆ position()

◆ refittedTrack() [1/2]

◆ refittedTrack() [2/2]

◆ refittedTracks()

◆ removeTracks()

◆ reserve()

◆ t()

◆ tError()

◆ trackRefAt()

◆ tracks()

◆ tracks_begin()

◆ tracks_end()

◆ tracksSize()

◆ trackWeight()

◆ x()

◆ xError()

◆ y()

◆ yError()

◆ z()

◆ zError()

Member Data Documentation

◆ chi2_

◆ covariance_

◆ ndof_

◆ position_

◆ refittedTracks_

◆ time_

◆ tracks_

◆ validity_

◆ weights_