A PFTrack holds several trajectory points, which basically contain the position and momentum of a track at a given position. More...

#include <PFTrajectoryPoint.h>

Public Types
enum	LayerType { ClosestApproach = 0, BeamPipeOrEndVertex = 1, PS1 = 2, PS2 = 3, ECALEntrance = 4, ECALShowerMax = 5, HCALEntrance = 6, HCALExit = 7, HOLayer = 8, VFcalEntrance = 9, NLayers = 10, Unknown = -1 }
	Define the different layers where the track can be propagated. More...

typedef ROOT::Math::PositionVector3D< ROOT::Math::CylindricalEta3D< double > >	REPPoint

Public Member Functions
void	calculatePositionREP ()
	calculate posrep_ once and for all More...

int	detId () const
	measurement detId More...

bool	isTrackerLayer () const
	is this point corresponding to an intersection with a tracker layer ? More...

bool	isValid () const
	is this point valid ? More...

int	layer () const
	trajectory point layer More...

const math::XYZTLorentzVector &	momentum () const
	4-momenta quadrivector More...

bool	operator== (const reco::PFTrajectoryPoint &other) const

	PFTrajectoryPoint ()
	default constructor. Set variables at default dummy values More...

	PFTrajectoryPoint (const PFTrajectoryPoint &other)
	copy More...

	PFTrajectoryPoint (int detId, int layer, const math::XYZPoint &posxyz, const math::XYZTLorentzVector &momentum)
	constructor from values. set detId to -1 if this point is not from a tracker layer More...

const math::XYZPoint &	position () const
	cartesian position (x, y, z) More...

const REPPoint &	positionREP () const
	trajectory position in (rho, eta, phi) base More...

virtual	~PFTrajectoryPoint ()
	destructor More...

Static Public Member Functions
static LayerType	layerTypeByName (const std::string &name)

Static Public Attributes
static const std::array< std::string, NLayers >	layerTypeNames

Private Attributes
int	detId_
	detid if measurement is corresponding to a tracker layer More...

bool	isTrackerLayer_
	Is the measurement corresponding to a tracker layer? or was it obtained by propagating the track to a certain position? More...

int	layer_
	propagated layer More...

math::XYZTLorentzVector	momentum_
	momentum quadrivector More...

REPPoint	posrep_
	position in (rho, eta, phi) base (transient) More...

math::XYZPoint	posxyz_
	cartesian position (x, y, z) More...

Friends
std::ostream &	operator<< (std::ostream &out, const reco::PFTrajectoryPoint &trajPoint)

Detailed Description

A PFTrack holds several trajectory points, which basically contain the position and momentum of a track at a given position.

Author: Renaud Bruneliere

Date: July 2006

Definition at line 26 of file PFTrajectoryPoint.h.

Member Typedef Documentation

◆ REPPoint

typedef ROOT::Math::PositionVector3D<ROOT::Math::CylindricalEta3D<double> > reco::PFTrajectoryPoint::REPPoint

Definition at line 31 of file PFTrajectoryPoint.h.

Member Enumeration Documentation

◆ LayerType

enum reco::PFTrajectoryPoint::LayerType

Define the different layers where the track can be propagated.

Enumerator
ClosestApproach	Point of closest approach from beam axis (initial point in the case of PFSimParticle)
BeamPipeOrEndVertex
PS1	Preshower layer 1.
PS2	Preshower layer 2.
ECALEntrance	ECAL front face.
ECALShowerMax	expected maximum of the shower in ECAL, for an e/gamma particle
HCALEntrance	HCAL front face.
HCALExit	HCAL exit.
HOLayer	HO layer.
VFcalEntrance	VFcal(HF) front face.
NLayers
Unknown

Definition at line 34 of file PFTrajectoryPoint.h.

                    {
       ClosestApproach = 0,
       BeamPipeOrEndVertex = 1,
       PS1 = 2,
       PS2 = 3,
       ECALEntrance = 4,
       ECALShowerMax = 5,
       HCALEntrance = 6,
       HCALExit = 7,
       HOLayer = 8,
       VFcalEntrance = 9,
       // Number of valid layers
       NLayers = 10,
       // Unknown
       Unknown = -1
     };

Constructor & Destructor Documentation

◆ PFTrajectoryPoint() [1/3]

PFTrajectoryPoint::PFTrajectoryPoint ( )

default constructor. Set variables at default dummy values

Definition at line 20 of file PFTrajectoryPoint.cc.

20 : isTrackerLayer_(false), detId_(-1), layer_(-1) {}

◆ PFTrajectoryPoint() [2/3]

PFTrajectoryPoint::PFTrajectoryPoint	(	int	detId,
		int	layer,
		const math::XYZPoint &	posxyz,
		const math::XYZTLorentzVector &	momentum
	)

constructor from values. set detId to -1 if this point is not from a tracker layer

Definition at line 22 of file PFTrajectoryPoint.cc.

     : isTrackerLayer_(false), detId_(detId), layer_(layer), posxyz_(posxyz), momentum_(momentum) {
   if (detId)
     isTrackerLayer_ = true;
   posrep_.SetCoordinates(posxyz_.Rho(), posxyz_.Eta(), posxyz_.Phi());
 }

References detId(), isTrackerLayer_, posrep_, and posxyz_.

◆ PFTrajectoryPoint() [3/3]

PFTrajectoryPoint::PFTrajectoryPoint ( const PFTrajectoryPoint & other )

copy

Definition at line 32 of file PFTrajectoryPoint.cc.

     : isTrackerLayer_(other.isTrackerLayer_),
       detId_(other.detId_),
       layer_(other.layer_),
       posxyz_(other.posxyz_),
       posrep_(other.posrep_),
       momentum_(other.momentum_) {}

◆ ~PFTrajectoryPoint()

PFTrajectoryPoint::~PFTrajectoryPoint ( )

virtual

destructor

Definition at line 40 of file PFTrajectoryPoint.cc.

40 {}

Member Function Documentation

◆ calculatePositionREP()

void reco::PFTrajectoryPoint::calculatePositionREP ( )

inline

calculate posrep_ once and for all

Definition at line 106 of file PFTrajectoryPoint.h.

106 { posrep_.SetCoordinates(posxyz_.Rho(), posxyz_.Eta(), posxyz_.Phi()); }

References posrep_, and posxyz_.

◆ detId()

int reco::PFTrajectoryPoint::detId ( ) const

inline

measurement detId

Definition at line 78 of file PFTrajectoryPoint.h.

78 { return detId_; }

References detId_.

Referenced by reco::operator<<(), and PFTrajectoryPoint().

◆ isTrackerLayer()

bool reco::PFTrajectoryPoint::isTrackerLayer ( ) const

inline

is this point corresponding to an intersection with a tracker layer ?

Definition at line 92 of file PFTrajectoryPoint.h.

                                 {
       if (detId_ >= 0)
         return true;
       else
         return false;
     }

References detId_.

Referenced by reco::PFTrack::addPoint().

◆ isValid()

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

inline

is this point valid ?

Definition at line 84 of file PFTrajectoryPoint.h.

                          {
       if (layer_ == -1 && detId_ == -1)
         return false;
       else
         return true;
     }

References detId_, and layer_.

Referenced by ntupleDataFormat._Object::_checkIsValid(), PFElecTkProducer::isSharingEcalEnergyWithEgSC(), PFElecTkProducer::minTangDist(), reco::PFBlockElementBrem::PFBlockElementBrem(), reco::PFBlockElementGsfTrack::PFBlockElementGsfTrack(), reco::PFBlockElementTrack::PFBlockElementTrack(), PFConversionProducer::produce(), PFTrackProducer::produce(), core.AutoHandle.AutoHandle::ReallyLoad(), ConvBremPFTrackFinder::runConvBremFinder(), KDTreeLinkerTrackHcal::searchLinks(), KDTreeLinkerTrackEcal::searchLinks(), HGCalAndBREMLinker::testLink(), ECALAndBREMLinker::testLink(), GSFAndECALLinker::testLink(), GSFAndHCALLinker::testLink(), HCALAndBREMLinker::testLink(), GSFAndHGCalLinker::testLink(), TrackAndECALLinker::testLink(), TrackAndHCALLinker::testLink(), and LinkByRecHit::testTrackAndClusterByRecHit().

◆ layer()

int reco::PFTrajectoryPoint::layer ( ) const

inline

trajectory point layer

Definition at line 81 of file PFTrajectoryPoint.h.

81 { return layer_; }

References layer_.

Referenced by geometryXMLparser.DTAlignable::index(), geometryXMLparser.CSCAlignable::index(), and reco::operator<<().

◆ layerTypeByName()

PFTrajectoryPoint::LayerType PFTrajectoryPoint::layerTypeByName ( const std::string & name )

static

Definition at line 42 of file PFTrajectoryPoint.cc.

                                                                                    {
   auto it = std::find(layerTypeNames.begin(), layerTypeNames.end(), name);
   if (it == layerTypeNames.end()) {
     return Unknown;  // better this or throw()?
   }
   int index = std::distance(layerTypeNames.begin(), it);
   return LayerType(index);
 }

References HLT_2018_cff::distance, spr::find(), layerTypeNames, Skims_PA_cff::name, and Unknown.

Referenced by KDTreeLinkerTrackHcal::KDTreeLinkerTrackHcal(), and TrackAndHCALLinker::TrackAndHCALLinker().

◆ momentum()

const math::XYZTLorentzVector& reco::PFTrajectoryPoint::momentum ( ) const

inline

4-momenta quadrivector

Definition at line 109 of file PFTrajectoryPoint.h.

109 { return momentum_; }

References momentum_.

Referenced by reco::operator<<(), ConvBremPFTrackFinder::runConvBremFinder(), KDTreeLinkerTrackEcal::searchLinks(), and LinkByRecHit::testTrackAndClusterByRecHit().

◆ operator==()

bool PFTrajectoryPoint::operator== ( const reco::PFTrajectoryPoint & other ) const

Definition at line 51 of file PFTrajectoryPoint.cc.

                                                                            {
   if (posxyz_ == other.posxyz_ && momentum_ == other.momentum_)
     return true;
   else
     return false;
 }

References momentum_, trackingPlots::other, and posxyz_.

◆ position()

const math::XYZPoint& reco::PFTrajectoryPoint::position ( ) const

inline

cartesian position (x, y, z)

Definition at line 100 of file PFTrajectoryPoint.h.

100 { return posxyz_; }

References posxyz_.

Referenced by reco::operator<<(), reco::PFBlockElementBrem::PFBlockElementBrem(), reco::PFBlockElementGsfTrack::PFBlockElementGsfTrack(), reco::PFBlockElementTrack::PFBlockElementTrack(), KDTreeLinkerTrackEcal::searchLinks(), TrackAndHCALLinker::testLink(), and LinkByRecHit::testTrackAndClusterByRecHit().

◆ positionREP()

const REPPoint& reco::PFTrajectoryPoint::positionREP ( ) const

inline

trajectory position in (rho, eta, phi) base

Definition at line 103 of file PFTrajectoryPoint.h.

103 { return posrep_; }

References posrep_.

Referenced by PFElecTkProducer::minTangDist(), KDTreeLinkerTrackHcal::searchLinks(), KDTreeLinkerTrackEcal::searchLinks(), GSFAndHGCalLinker::testLink(), HGCalAndBREMLinker::testLink(), TrackAndECALLinker::testLink(), TrackAndHCALLinker::testLink(), LinkByRecHit::testTrackAndClusterByRecHit(), and KDTreeLinkerTrackHcal::updatePFBlockEltWithLinks().

Friends And Related Function Documentation

◆ operator<<

std::ostream& operator<<	(	std::ostream &	out,
		const reco::PFTrajectoryPoint &	trajPoint
	)

friend

Member Data Documentation

◆ detId_

int reco::PFTrajectoryPoint::detId_

private

detid if measurement is corresponding to a tracker layer

Definition at line 121 of file PFTrajectoryPoint.h.

Referenced by detId(), isTrackerLayer(), and isValid().

◆ isTrackerLayer_

bool reco::PFTrajectoryPoint::isTrackerLayer_

private

Is the measurement corresponding to a tracker layer? or was it obtained by propagating the track to a certain position?

Definition at line 118 of file PFTrajectoryPoint.h.

Referenced by PFTrajectoryPoint().

◆ layer_

int reco::PFTrajectoryPoint::layer_

private

propagated layer

Definition at line 124 of file PFTrajectoryPoint.h.

Referenced by isValid(), and layer().

◆ layerTypeNames

const std::array< std::string, PFTrajectoryPoint::NLayers > PFTrajectoryPoint::layerTypeNames

static

Initial value:

{{"ClosestApproach",
                                                                                             "BeamPipeOrEndVertex",
                                                                                             "PS1",
                                                                                             "PS2",
                                                                                             "ECALEntrance",
                                                                                             "ECALShowerMax",
                                                                                             "HCALEntrance",
                                                                                             "HCALExit",
                                                                                             "HOLayer",
                                                                                             "VFcalEntrance"}}

Definition at line 61 of file PFTrajectoryPoint.h.

Referenced by layerTypeByName().

◆ momentum_

math::XYZTLorentzVector reco::PFTrajectoryPoint::momentum_

private

momentum quadrivector

Definition at line 133 of file PFTrajectoryPoint.h.

Referenced by momentum(), and operator==().

◆ posrep_

REPPoint reco::PFTrajectoryPoint::posrep_

private

position in (rho, eta, phi) base (transient)

Definition at line 130 of file PFTrajectoryPoint.h.

Referenced by calculatePositionREP(), PFTrajectoryPoint(), and positionREP().

◆ posxyz_

math::XYZPoint reco::PFTrajectoryPoint::posxyz_

private

cartesian position (x, y, z)

Definition at line 127 of file PFTrajectoryPoint.h.

Referenced by calculatePositionREP(), operator==(), PFTrajectoryPoint(), and position().

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ REPPoint

Member Enumeration Documentation

◆ LayerType

Constructor & Destructor Documentation

◆ PFTrajectoryPoint() [1/3]

◆ PFTrajectoryPoint() [2/3]

◆ PFTrajectoryPoint() [3/3]

◆ ~PFTrajectoryPoint()

Member Function Documentation

◆ calculatePositionREP()

◆ detId()

◆ isTrackerLayer()

◆ isValid()

◆ layer()

◆ layerTypeByName()

◆ momentum()

◆ operator==()

◆ position()

◆ positionREP()

Friends And Related Function Documentation

◆ operator<<

Member Data Documentation

◆ detId_

◆ isTrackerLayer_

◆ layer_

◆ layerTypeNames

◆ momentum_

◆ posrep_

◆ posxyz_