#include <MatcherUsingTracksAlgorithm.h>

Public Member Functions
bool	hasChi2 () const
	Return 'true' if the matcher will produce also chi2. More...

bool	hasMetrics () const
	Return 'true' if the matcher will produce meaningful deltaR, deltaLocalPos, deltaPtRel values. More...

void	init (const edm::EventSetup &iSetup)
	Call this method at the beginning of each run, to initialize geometry, magnetic field and propagators. More...

bool	match (const reco::Candidate &c1, const reco::Candidate &c2, float &deltaR, float &deltaEta, float &deltaPhi, float &deltaLocalPos, float &deltaPtRel, float &chi2) const

int	match (const reco::Candidate &tk, const edm::View< reco::Candidate > &c2s, float &deltaR, float &deltaEta, float &deltaPhi, float &deltaLocalPos, float &deltaPtRel, float &chi2) const

	MatcherUsingTracksAlgorithm (const edm::ParameterSet &iConfig)

virtual	~MatcherUsingTracksAlgorithm ()

Static Public Member Functions
static void	cropAndInvert (AlgebraicSymMatrix55 &cov, bool diagonalOnly, bool top3by3only)
	Possibly crop the 3x3 part of the matrix or remove off-diagonal terms, then invert. More...

static double	getChi2 (const FreeTrajectoryState &start, const FreeTrajectoryState &other, bool diagonalOnly, bool useVertex, bool useFirstMomentum)

static double	getChi2 (const FreeTrajectoryState &start, const TrajectoryStateClosestToPoint &other, bool diagonalOnly, bool useVertex)

static double	getChi2 (const TrajectoryStateOnSurface &start, const TrajectoryStateOnSurface &other, bool diagonalOnly, bool usePosition)

Private Types
enum	AlgoType { ByTrackRef, ByDirectComparison, ByPropagatingSrc, ByPropagatingMatched, ByPropagatingSrcTSCP, ByPropagatingMatchedTSCP }

enum	SortBy { LocalPosDiff, GlobalMomDeltaR, GlobalMomDeltaEta, GlobalMomDeltaPhi, GlobalDPtRel, Chi2 }

enum	WhichState { AtVertex, Innermost, Outermost }

enum	WhichTrack { None, TrackerTk, MuonTk, GlobalTk }

Private Member Functions
void	getConf (const edm::ParameterSet &iConfig, const std::string &whatFor, WhichTrack &whichTrack, WhichState &whichState)
	Parse some configuration. More...

reco::TrackRef	getTrack (const reco::Candidate &reco, WhichTrack which) const
	Get track reference out of a Candidate (via dynamic_cast to reco::RecoCandidate) More...

bool	matchByDirectComparison (const FreeTrajectoryState &start, const FreeTrajectoryState &other, float &lastDeltaR, float &lastDeltaEta, float &lastDeltaPhi, float &lastDeltaLocalPos, float &lastGlobalDPtRel, float &lastChi2) const
	Compare directly two states. return true if current pair is the new best match (in that case, update also deltaR and deltaLocalPos) More...

bool	matchWithPropagation (const FreeTrajectoryState &start, const FreeTrajectoryState &target, float &lastDeltaR, float &lastDeltaEta, float &lastDeltaPhi, float &lastDeltaLocalPos, float &lastGlobalDPtRel, float &lastChi2) const

bool	matchWithPropagation (const FreeTrajectoryState &start, const TrajectoryStateOnSurface &target, float &lastDeltaR, float &lastDeltaEta, float &lastDeltaPhi, float &lastDeltaLocalPos, float &lastGlobalDPtRel, float &lastChi2) const

FreeTrajectoryState	startingState (const reco::Candidate &reco, WhichTrack whichTrack, WhichState whichState) const
	Starting state for the propagation. More...

TrajectoryStateOnSurface	targetState (const reco::Candidate &reco, WhichTrack whichTrack, WhichState whichState) const
	End state for the propagation. More...

Private Attributes
AlgoType	algo_

bool	chi2DiagonalOnly_

bool	chi2FirstMomentum_

bool	chi2UseVertex_

edm::ESHandle < GlobalTrackingGeometry >	geometry_

edm::ESHandle< MagneticField >	magfield_

StringCutObjectSelector < reco::Candidate, true >	matchedCut_

float	maxChi2_

float	maxGlobalDPtRel_

float	maxGlobalMomDeltaEta_

float	maxGlobalMomDeltaPhi_

float	maxGlobalMomDeltaR_

float	maxLocalPosDiff_

edm::ESHandle< Propagator >	propagator_

bool	requireSameCharge_

SortBy	sortBy_

StringCutObjectSelector < reco::Candidate, true >	srcCut_

bool	useChi2_

WhichState	whichState1_

WhichState	whichState2_

WhichTrack	whichTrack1_

WhichTrack	whichTrack2_

Detailed Description

Definition at line 30 of file MatcherUsingTracksAlgorithm.h.

Member Enumeration Documentation

enum MatcherUsingTracksAlgorithm::AlgoType

private

Enumerator
ByTrackRef
ByDirectComparison
ByPropagatingSrc
ByPropagatingMatched
ByPropagatingSrcTSCP
ByPropagatingMatchedTSCP

Definition at line 75 of file MatcherUsingTracksAlgorithm.h.

enum MatcherUsingTracksAlgorithm::SortBy

private

Enumerator
LocalPosDiff
GlobalMomDeltaR
GlobalMomDeltaEta
GlobalMomDeltaPhi
GlobalDPtRel
Chi2

Definition at line 97 of file MatcherUsingTracksAlgorithm.h.

enum MatcherUsingTracksAlgorithm::WhichState

private

Enumerator
AtVertex
Innermost
Outermost

Definition at line 79 of file MatcherUsingTracksAlgorithm.h.

enum MatcherUsingTracksAlgorithm::WhichTrack

private

Enumerator
None
TrackerTk
MuonTk
GlobalTk

Definition at line 78 of file MatcherUsingTracksAlgorithm.h.

Constructor & Destructor Documentation

MatcherUsingTracksAlgorithm::MatcherUsingTracksAlgorithm ( const edm::ParameterSet & iConfig )

explicit

Definition at line 20 of file MatcherUsingTracksAlgorithm.cc.

virtual MatcherUsingTracksAlgorithm::~MatcherUsingTracksAlgorithm ( )

inlinevirtual

Definition at line 33 of file MatcherUsingTracksAlgorithm.h.

Member Function Documentation

void MatcherUsingTracksAlgorithm::cropAndInvert	(	AlgebraicSymMatrix55 &	cov,
		bool	diagonalOnly,
		bool	top3by3only
	)

static

Possibly crop the 3x3 part of the matrix or remove off-diagonal terms, then invert.

Definition at line 482 of file MatcherUsingTracksAlgorithm.cc.

double MatcherUsingTracksAlgorithm::getChi2	(	const FreeTrajectoryState &	start,
		const FreeTrajectoryState &	other,
		bool	diagonalOnly,
		bool	useVertex,
		bool	useFirstMomentum
	)

static

Compute the chi2 of two free trajectory states, in the curvilinear frame (q/p, theta, phi, dxy, dsz) At least one must have errors diagonalOnly: don't use off-diagonal terms of covariance matrix useVertex : use dxy, dsz in the chi2 (if false, use only q/p, theta, phi) useFirstMomentum : use the 'start' state momentum to compute dxy, dsx (if false, use 'other')

Definition at line 437 of file MatcherUsingTracksAlgorithm.cc.

double MatcherUsingTracksAlgorithm::getChi2	(	const FreeTrajectoryState &	start,
		const TrajectoryStateClosestToPoint &	other,
		bool	diagonalOnly,
		bool	useVertex
	)

static

Compute the chi2 of one free trajectory state and a TrajectoryStateClosestToPoint closest to it, in the perigee frame At least one must have errors diagonalOnly: don't use off-diagonal terms of covariance matrix useVertex : use dxy, dsz in the chi2 (if false, use only q/p, theta, phi)

Definition at line 457 of file MatcherUsingTracksAlgorithm.cc.

double MatcherUsingTracksAlgorithm::getChi2	(	const TrajectoryStateOnSurface &	start,
		const TrajectoryStateOnSurface &	other,
		bool	diagonalOnly,
		bool	usePosition
	)

static

Compute the chi2 of two free trajectory states, in the local frame (q/p, dx, dy, dxdz, dydz) At least one must have errors diagonalOnly: don't use off-diagonal terms of covariance matrix useVertex : use dx, dy in the chi2 (if false, use only direction and q/p)

Definition at line 471 of file MatcherUsingTracksAlgorithm.cc.

void MatcherUsingTracksAlgorithm::getConf	(	const edm::ParameterSet &	iConfig,
		const std::string &	whatFor,
		WhichTrack &	whichTrack,
		WhichState &	whichState
	)

private

Parse some configuration.

Definition at line 101 of file MatcherUsingTracksAlgorithm.cc.

reco::TrackRef MatcherUsingTracksAlgorithm::getTrack	(	const reco::Candidate &	reco,
		WhichTrack	which
	)		const

private

Get track reference out of a Candidate (via dynamic_cast to reco::RecoCandidate)

Definition at line 235 of file MatcherUsingTracksAlgorithm.cc.

bool MatcherUsingTracksAlgorithm::hasChi2 ( ) const

inline

Return 'true' if the matcher will produce also chi2.

Definition at line 51 of file MatcherUsingTracksAlgorithm.h.

bool MatcherUsingTracksAlgorithm::hasMetrics ( ) const

inline

Return 'true' if the matcher will produce meaningful deltaR, deltaLocalPos, deltaPtRel values.

Definition at line 48 of file MatcherUsingTracksAlgorithm.h.

void MatcherUsingTracksAlgorithm::init ( const edm::EventSetup & iSetup )

Call this method at the beginning of each run, to initialize geometry, magnetic field and propagators.

Definition at line 227 of file MatcherUsingTracksAlgorithm.cc.

bool MatcherUsingTracksAlgorithm::match	(	const reco::Candidate &	c1,
		const reco::Candidate &	c2,
		float &	deltR,
		float &	deltEta,
		float &	deltPhi,
		float &	deltaLocalPos,
		float &	deltaPtRel,
		float &	chi2
	)		const

Try to match one track to another one. Return true if succeeded. For matches not by ref, it will update deltaR, deltaLocalPos and deltaPtRel if the match suceeded

Definition at line 120 of file MatcherUsingTracksAlgorithm.cc.

int MatcherUsingTracksAlgorithm::match	(	const reco::Candidate &	c1,
		const edm::View< reco::Candidate > &	c2s,
		float &	deltR,
		float &	deltEta,
		float &	deltPhi,
		float &	deltaLocalPos,
		float &	deltaPtRel,
		float &	chi2
	)		const

Find the best match to another candidate, and return its index in the vector For matches not by ref, it will update deltaR, deltaLocalPos and deltaPtRel if the match suceeded Returns -1 if the match fails

Definition at line 166 of file MatcherUsingTracksAlgorithm.cc.

bool MatcherUsingTracksAlgorithm::matchByDirectComparison	(	const FreeTrajectoryState &	start,
		const FreeTrajectoryState &	other,
		float &	lastDeltaR,
		float &	lastDeltaEta,
		float &	lastDeltaPhi,
		float &	lastDeltaLocalPos,
		float &	lastGlobalDPtRel,
		float &	lastChi2
	)		const

private

Compare directly two states. return true if current pair is the new best match (in that case, update also deltaR and deltaLocalPos)

Definition at line 390 of file MatcherUsingTracksAlgorithm.cc.

bool MatcherUsingTracksAlgorithm::matchWithPropagation	(	const FreeTrajectoryState &	start,
		const FreeTrajectoryState &	target,
		float &	lastDeltaR,
		float &	lastDeltaEta,
		float &	lastDeltaPhi,
		float &	lastDeltaLocalPos,
		float &	lastGlobalDPtRel,
		float &	lastChi2
	)		const

private

Propagate and match. return true if current pair is the new best match (in that case, update also deltaR and deltaLocalPos) Uses TrajectoryStateClosestToPointBuilder

Definition at line 337 of file MatcherUsingTracksAlgorithm.cc.

bool MatcherUsingTracksAlgorithm::matchWithPropagation	(	const FreeTrajectoryState &	start,
		const TrajectoryStateOnSurface &	target,
		float &	lastDeltaR,
		float &	lastDeltaEta,
		float &	lastDeltaPhi,
		float &	lastDeltaLocalPos,
		float &	lastGlobalDPtRel,
		float &	lastChi2
	)		const

private

Propagate and match. return true if current pair is the new best match (in that case, update also deltaR and deltaLocalPos) Uses standard propagator to reach target's surface

Definition at line 286 of file MatcherUsingTracksAlgorithm.cc.