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TransientTrackKinematicParticle Class Reference

Class representing KinematicParticle created fromTransientTrack. More...

#include <RecoVertex/KinematicFitPrimitives/interface/TransientTrackKinematicParticle.h>

Inheritance diagram for TransientTrackKinematicParticle:

List of all members.

Public Member Functions
const reco::TransientTrack *	initialTransientTrack () const
	Access to initial TransientTrack (if any).
bool	operator!= (const KinematicParticle &other) const
bool	operator== (const ReferenceCountingPointer< KinematicParticle > &other) const
bool	operator== (const KinematicParticle &other) const
	Comparison by contents operator Returns TRUE if initial TransientTracks match(if they exist).
RefCountedLinearizedTrackState	particleLinearizedTrackState (const GlobalPoint &point) const
	Method returning LinearizedTrackState of the particle needed for Kalman flter vertex fit.
ReferenceCountingPointer < KinematicParticle >	refittedParticle (const KinematicState &state, float chi2, float ndf, KinematicConstraint *cons=0) const
	Method producing new particle with refitted parameters.
KinematicState	stateAtPoint (const GlobalPoint &point) const
	Access to KinematicState of particle at given point.
	TransientTrackKinematicParticle (const KinematicState &kineState, float &chiSquared, float &degreesOfFr, KinematicConstraint *lastConstraint, ReferenceCountingPointer< KinematicParticle > previousParticle, KinematicStatePropagator *pr, const reco::TransientTrack *initialTrack=0)
	Constructor using KinematicState, Previous state of particle last constraint used and original TransientTrack, if any.
virtual	~TransientTrackKinematicParticle ()
Private Attributes
const reco::TransientTrack *	inTrack
ParticleKinematicLinearizedTrackStateFactory	linFactory
KinematicStatePropagator *	propagator

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Detailed Description

Class representing KinematicParticle created fromTransientTrack.

Uses specific KinematicState builders and propagators. Extends KinematicParticle class implementing its abstract methods and adding several new ones.

Definition at line 18 of file TransientTrackKinematicParticle.h.

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Constructor & Destructor Documentation

TransientTrackKinematicParticle::TransientTrackKinematicParticle	(	const KinematicState &	kineState,
		float &	chiSquared,
		float &	degreesOfFr,
		KinematicConstraint *	lastConstraint,
		ReferenceCountingPointer< KinematicParticle >	previousParticle,
		KinematicStatePropagator *	pr,
		const reco::TransientTrack *	initialTrack = 0
	)

Constructor using KinematicState, Previous state of particle last constraint used and original TransientTrack, if any.

All the pointers can be set to 0 if there's no such information available. Constructor should be use by specific factory only. Propagator for TransientTrack KinematicState is used.

Definition at line 7 of file TransientTrackKinematicParticle.cc.

References KinematicStatePropagator::clone(), KinematicState::magneticField(), and tree.

Referenced by refittedParticle().

{
  theField = kineState.magneticField();
 if(previousParticle.get() == 0)
 { 
  initState = kineState;
}else{initState = previousParticle->initialState();}
 cState = kineState;
 inTrack = initialTrack;
 pState = previousParticle;
 chi2 = chiSquared;
 ndf = degreesOfFr;
 lConstraint = lastConstraint;
 if(pr!=0)
 {
  propagator = pr->clone();
 }else{
  propagator = new TrackKinematicStatePropagator();
 }
 tree = 0;
} 

TransientTrackKinematicParticle::~TransientTrackKinematicParticle

(

)

[virtual]

Definition at line 32 of file TransientTrackKinematicParticle.cc.

References propagator.

{delete propagator;}

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Member Function Documentation

const TransientTrack * TransientTrackKinematicParticle::initialTransientTrack

(

)

const

Access to initial TransientTrack (if any).

Definition at line 79 of file TransientTrackKinematicParticle.cc.

References inTrack.

Referenced by operator==(), KinematicParticleFactoryFromTransientTrack::particle(), and refittedParticle().

{return inTrack;}  

bool TransientTrackKinematicParticle::operator!=

(

const KinematicParticle &

other

)

const [virtual]

Implements KinematicParticle.

Definition at line 60 of file TransientTrackKinematicParticle.cc.

{
 if (*this == other){
  return false;
 }else{return true;} 
}

bool TransientTrackKinematicParticle::operator==

(

const ReferenceCountingPointer< KinematicParticle > &

other

)

const [virtual]

Implements KinematicParticle.

Definition at line 53 of file TransientTrackKinematicParticle.cc.

References res.

{
 bool res = false;
 if(*this == *other) res = true;
 return res;
}

bool TransientTrackKinematicParticle::operator==

(

const KinematicParticle &

other

)

const [virtual]

Comparison by contents operator Returns TRUE if initial TransientTracks match(if they exist).

If not, compares the initial KinematicStates Retunes true if they match.

Implements KinematicParticle.

Definition at line 35 of file TransientTrackKinematicParticle.cc.

References dc, KinematicParticle::initialState(), initialTransientTrack(), and lp.

{
 bool dc = false;
 
//first looking if this is an object of the same type
 const  KinematicParticle * lp = &other;
 const TransientTrackKinematicParticle * lPart = dynamic_cast<const TransientTrackKinematicParticle * >(lp);
 if(lPart != 0){
 
//then comparing particle with their initial TransientTracks 
  if((initialTransientTrack())&&(lPart->initialTransientTrack()))
  {
   if(initialTransientTrack() == lPart->initialTransientTrack()) dc = true;
  }else{if(initialState() == lPart->initialState()) dc = true;} 
 }
 return dc; 
}

TransientTrackKinematicParticle::RefCountedLinearizedTrackState TransientTrackKinematicParticle::particleLinearizedTrackState

(

const GlobalPoint &

point

)

const [virtual]

Method returning LinearizedTrackState of the particle needed for Kalman flter vertex fit.

This implementation uses the ParticleLinearizedTrackStateFactory class.

Implements KinematicParticle.

Definition at line 91 of file TransientTrackKinematicParticle.cc.

References ParticleKinematicLinearizedTrackStateFactory::linearizedTrackState(), linFactory, and lp.

{
 TransientTrackKinematicParticle * cr = const_cast<TransientTrackKinematicParticle * >(this);
 RefCountedKinematicParticle lp = ReferenceCountingPointer<KinematicParticle>(cr);
 return linFactory.linearizedTrackState(point,lp);
}                     

ReferenceCountingPointer< KinematicParticle > TransientTrackKinematicParticle::refittedParticle	(	const KinematicState &	state,
		float	chi2,
		float	ndf,
		KinematicConstraint *	cons = 0
	)			const [virtual]

Method producing new particle with refitted parameters.

Current state is then shifted to previous state. RCP<TransientTrackKinematicParticle> is returned.

Implements KinematicParticle.

Definition at line 82 of file TransientTrackKinematicParticle.cc.

References initialTransientTrack(), propagator, and TransientTrackKinematicParticle().

{
 TransientTrackKinematicParticle * ncp = const_cast<TransientTrackKinematicParticle * >(this);
 return ReferenceCountingPointer<KinematicParticle>(new TransientTrackKinematicParticle(state,chi2,ndf,cons,
                          ReferenceCountingPointer<KinematicParticle>(ncp), propagator, initialTransientTrack()));
}

KinematicState TransientTrackKinematicParticle::stateAtPoint

(

const GlobalPoint &

point

)

const [virtual]

Access to KinematicState of particle at given point.

Implements KinematicParticle.

Definition at line 67 of file TransientTrackKinematicParticle.cc.

References KinematicParticle::cState, KinematicState::kinematicParameters(), KinematicParameters::position(), KinematicStatePropagator::propagateToTheTransversePCA(), propagator, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

{
 GlobalPoint iP = cState.kinematicParameters().position();
 if((iP.x() == point.x())&&(iP.y() == point.y())&&(iP.z() == point.z()))
 {
  return cState ;
 }else{return propagator->propagateToTheTransversePCA(cState,point);} 
}

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Member Data Documentation

const reco::TransientTrack* TransientTrackKinematicParticle::inTrack [private]

Definition at line 77 of file TransientTrackKinematicParticle.h.

Referenced by initialTransientTrack().

ParticleKinematicLinearizedTrackStateFactory TransientTrackKinematicParticle::linFactory [private]

Definition at line 84 of file TransientTrackKinematicParticle.h.

Referenced by particleLinearizedTrackState().

KinematicStatePropagator* TransientTrackKinematicParticle::propagator [private]

Definition at line 80 of file TransientTrackKinematicParticle.h.

Referenced by refittedParticle(), stateAtPoint(), and ~TransientTrackKinematicParticle().

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

• RecoVertex/KinematicFitPrimitives/interface/TransientTrackKinematicParticle.h
• RecoVertex/KinematicFitPrimitives/src/TransientTrackKinematicParticle.cc

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