TransientTrackKinematicParticle Class Reference

#include <TransientTrackKinematicParticle.h>

Inheritance diagram for TransientTrackKinematicParticle:

Public Member Functions
const reco::TransientTrack *	initialTransientTrack () const
bool	operator!= (const KinematicParticle &other) const
bool	operator== (const KinematicParticle &other) const
bool	operator== (const ReferenceCountingPointer< KinematicParticle > &other) const
RefCountedLinearizedTrackState	particleLinearizedTrackState (const GlobalPoint &point) const
ReferenceCountingPointer < KinematicParticle >	refittedParticle (const KinematicState &state, float chi2, float ndf, KinematicConstraint *cons=0) const
KinematicState	stateAtPoint (const GlobalPoint &point) const
	TransientTrackKinematicParticle (const KinematicState &kineState, float &chiSquared, float &degreesOfFr, KinematicConstraint *lastConstraint, ReferenceCountingPointer< KinematicParticle > previousParticle, KinematicStatePropagator *pr, const reco::TransientTrack *initialTrack=0)
virtual	~TransientTrackKinematicParticle ()
Public Member Functions inherited from KinematicParticle
virtual float	chiSquared () const
virtual KinematicTree *	correspondingTree () const
virtual KinematicState	currentState () const
virtual float	degreesOfFreedom () const
virtual KinematicState	initialState () const
	KinematicParticle ()
virtual KinematicConstraint *	lastConstraint () const
const MagneticField *	magneticField () const
virtual bool	operator< (const KinematicParticle &other) const
virtual ReferenceCountingPointer < KinematicParticle >	previousParticle () const
reco::TransientTrack	refittedTransientTrack () const
virtual	~KinematicParticle ()

Private Attributes
const reco::TransientTrack *	inTrack
ParticleKinematicLinearizedTrackStateFactory	linFactory
KinematicStatePropagator *	propagator

Additional Inherited Members
Public Types inherited from KinematicParticle
typedef ReferenceCountingPointer < LinearizedTrackState< 6 > >	RefCountedLinearizedTrackState
Protected Member Functions inherited from KinematicParticle
virtual void	setTreePointer (KinematicTree *tr) const
Protected Attributes inherited from KinematicParticle
float	chi2
KinematicState	cState
KinematicState	initState
KinematicConstraint *	lConstraint
float	ndf
ReferenceCountingPointer < KinematicParticle >	pState
const MagneticField *	theField
KinematicTree *	tree

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 17 of file TransientTrackKinematicParticle.h.

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(), LargeD0_PixelPairStep_cff::propagator, and diffTreeTool::tree.

{
  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 LargeD0_PixelPairStep_cff::propagator.

{delete propagator;}

Member Function Documentation

const TransientTrack * TransientTrackKinematicParticle::initialTransientTrack

(

)

const

Access to initial TransientTrack (if any)

Definition at line 79 of file TransientTrackKinematicParticle.cc.

Referenced by KinematicVertex::operator reco::Vertex(), operator==(), and KinematicParticleFactoryFromTransientTrack::particle().

{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 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 KinematicParticle::initialState(), and initialTransientTrack().

{
 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; 
}

bool TransientTrackKinematicParticle::operator== ( const ReferenceCountingPointer< KinematicParticle > &  other ) const

virtual

Implements KinematicParticle.

Definition at line 53 of file TransientTrackKinematicParticle.cc.

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

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.

{
 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 LargeD0_PixelPairStep_cff::propagator.

{
 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 LargeD0_PixelPairStep_cff::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);} 
}

Member Data Documentation

const reco::TransientTrack* TransientTrackKinematicParticle::inTrack

private

Definition at line 77 of file TransientTrackKinematicParticle.h.

ParticleKinematicLinearizedTrackStateFactory TransientTrackKinematicParticle::linFactory

private

Definition at line 84 of file TransientTrackKinematicParticle.h.

KinematicStatePropagator* TransientTrackKinematicParticle::propagator

private

Definition at line 80 of file TransientTrackKinematicParticle.h.