TrackDetectorAssociator Class Reference

#include <TrackDetectorAssociator.h>

Public Types
typedef TrackAssociatorParameters	AssociatorParameters
enum	Direction { Any, InsideOut, OutsideIn }

Public Member Functions
TrackDetMatchInfo	associate (const edm::Event &, const edm::EventSetup &, const FreeTrajectoryState &, const AssociatorParameters &)
TrackDetMatchInfo	associate (const edm::Event &iEvent, const edm::EventSetup &iSetup, const AssociatorParameters &parameters, const FreeTrajectoryState *innerState, const FreeTrajectoryState *outerState=0)
TrackDetMatchInfo	associate (const edm::Event &, const edm::EventSetup &, const reco::Track &, const AssociatorParameters &, Direction direction=Any)
	associate using reco::Track More...
TrackDetMatchInfo	associate (const edm::Event &, const edm::EventSetup &, const SimTrack &, const SimVertex &, const AssociatorParameters &)
	associate using a simulated track More...
TrackDetMatchInfo	associate (const edm::Event &, const edm::EventSetup &, const GlobalVector &, const GlobalPoint &, const int, const AssociatorParameters &)
	associate using 3-momentum, vertex and charge More...
const CachedTrajectory &	getCachedTrajector () const
	trajector information More...
void	setPropagator (const Propagator *)
	use a user configured propagator More...
	TrackDetectorAssociator ()
void	useDefaultPropagator ()
	use the default propagator More...
	~TrackDetectorAssociator ()

Static Public Member Functions
static bool	crossedIP (const reco::Track &track)
static FreeTrajectoryState	getFreeTrajectoryState (const edm::EventSetup &, const reco::Track &)
	get FreeTrajectoryState from different track representations More...
static FreeTrajectoryState	getFreeTrajectoryState (const edm::EventSetup &, const SimTrack &, const SimVertex &)
static FreeTrajectoryState	getFreeTrajectoryState (const edm::EventSetup &, const GlobalVector &, const GlobalPoint &, const int)

Private Member Functions
bool	addTAMuonSegmentMatch (TAMuonChamberMatch &, const RecSegment *, const AssociatorParameters &)
void	fillCaloTowers (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillCaloTruth (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillEcal (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillHcal (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillHO (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillMuon (const edm::Event &, TrackDetMatchInfo &, const AssociatorParameters &)
void	fillPreshower (const edm::Event &iEvent, TrackDetMatchInfo &info, const AssociatorParameters &)
DetIdAssociator::MapRange	getMapRange (const std::pair< float, float > &delta, const float dR)
math::XYZPoint	getPoint (const GlobalPoint &point)
math::XYZPoint	getPoint (const LocalPoint &point)
void	getTAMuonChamberMatches (std::vector< TAMuonChamberMatch > &matches, const AssociatorParameters &parameters)
math::XYZVector	getVector (const GlobalVector &vec)
math::XYZVector	getVector (const LocalVector &vec)
void	init (const edm::EventSetup &)

Private Attributes
CachedTrajectory	cachedTrajectory_
edm::ESHandle< DetIdAssociator >	caloDetIdAssociator_
Propagator *	defProp_
edm::ESHandle< DetIdAssociator >	ecalDetIdAssociator_
edm::ESHandle< DetIdAssociator >	hcalDetIdAssociator_
edm::ESHandle< DetIdAssociator >	hoDetIdAssociator_
const Propagator *	ivProp_
edm::ESHandle< DetIdAssociator >	muonDetIdAssociator_
edm::ESHandle< DetIdAssociator >	preshowerDetIdAssociator_
edm::ESHandle< CaloGeometry >	theCaloGeometry_
edm::ESWatcher < IdealMagneticFieldRecord >	theMagneticFeildWatcher_
edm::ESHandle < GlobalTrackingGeometry >	theTrackingGeometry_
bool	useDefaultPropagator_

Detailed Description

Definition at line 50 of file TrackDetectorAssociator.h.

Member Typedef Documentation

typedef TrackAssociatorParameters TrackDetectorAssociator::AssociatorParameters

Definition at line 55 of file TrackDetectorAssociator.h.

Member Enumeration Documentation

enum TrackDetectorAssociator::Direction

Enumerator
Any
InsideOut
OutsideIn

Definition at line 56 of file TrackDetectorAssociator.h.

{ Any, InsideOut, OutsideIn };

Constructor & Destructor Documentation

TrackDetectorAssociator::TrackDetectorAssociator

(

)

Definition at line 99 of file TrackDetectorAssociator.cc.

{
   ivProp_ = 0;
   defProp_ = 0;
   useDefaultPropagator_ = false;
}

TrackDetectorAssociator::~TrackDetectorAssociator

(

)

Definition at line 106 of file TrackDetectorAssociator.cc.

{
   if (defProp_) delete defProp_;
}

Member Function Documentation

bool TrackDetectorAssociator::addTAMuonSegmentMatch ( TAMuonChamberMatch &  matchedChamber, const RecSegment *  segment, const AssociatorParameters &  parameters  )

private

Definition at line 805 of file TrackDetectorAssociator.cc.

References reco::deltaPhi(), TrackAssociatorParameters::dRMuon, PV3DBase< T, PVType, FrameType >::eta(), TrajectoryStateOnSurface::freeState(), TrackingRecHit::geographicalId(), TAMuonSegmentMatch::hasPhi, DTRecSegment4D::hasPhi(), TAMuonSegmentMatch::hasZed, DTRecSegment4D::hasZed(), TAMuonChamberMatch::id, DTRecSegment2D::ist0Valid(), RecSegment::localDirection(), RecSegment::localDirectionError(), TrackingRecHit::localPosition(), TrackingRecHit::localPositionError(), LogTrace, M_PI, PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), DTRecSegment4D::phiSegment(), FreeTrajectoryState::position(), funct::pow(), DetId::rawId(), TAMuonSegmentMatch::segmentGlobalPosition, TAMuonSegmentMatch::segmentLocalDirection, TAMuonSegmentMatch::segmentLocalErrorDxDz, TAMuonSegmentMatch::segmentLocalErrorDyDz, TAMuonSegmentMatch::segmentLocalErrorXDxDz, TAMuonSegmentMatch::segmentLocalErrorXX, TAMuonSegmentMatch::segmentLocalErrorXY, TAMuonSegmentMatch::segmentLocalErrorYDyDz, TAMuonSegmentMatch::segmentLocalErrorYY, TAMuonSegmentMatch::segmentLocalPosition, TAMuonChamberMatch::segments, DTRecSegment2D::specificRecHits(), mathSSE::sqrt(), TAMuonSegmentMatch::t0, DTRecSegment2D::t0(), GeomDet::toGlobal(), TAMuonChamberMatch::tState, LocalError::xx(), LocalError::xy(), and LocalError::yy().

{
   LogTrace("TrackAssociator")
     << "Segment local position: " << segment->localPosition() << "\n"
     << std::hex << segment->geographicalId().rawId() << "\n";
   
   const GeomDet* chamber = muonDetIdAssociator_->getGeomDet(matchedChamber.id);
   TrajectoryStateOnSurface trajectoryStateOnSurface = matchedChamber.tState;
   GlobalPoint segmentGlobalPosition = chamber->toGlobal(segment->localPosition());

   LogTrace("TrackAssociator")
     << "Segment global position: " << segmentGlobalPosition << " \t (R_xy,eta,phi): "
     << segmentGlobalPosition.perp() << "," << segmentGlobalPosition.eta() << "," << segmentGlobalPosition.phi() << "\n";

   LogTrace("TrackAssociator")
     << "\teta hit: " << segmentGlobalPosition.eta() << " \tpropagator: " << trajectoryStateOnSurface.freeState()->position().eta() << "\n"
     << "\tphi hit: " << segmentGlobalPosition.phi() << " \tpropagator: " << trajectoryStateOnSurface.freeState()->position().phi() << std::endl;
   
   bool isGood = false;
   bool isDTWithoutY = false;
   const DTRecSegment4D* dtseg = dynamic_cast<const DTRecSegment4D*>(segment);
   if ( dtseg && (! dtseg->hasZed()) )
      isDTWithoutY = true;

   double deltaPhi(fabs(segmentGlobalPosition.phi()-trajectoryStateOnSurface.freeState()->position().phi()));
   if(deltaPhi>M_PI) deltaPhi = fabs(deltaPhi-M_PI*2.);

   if( isDTWithoutY )
     {
    isGood = deltaPhi < parameters.dRMuon;
    // Be in chamber
    isGood &= fabs(segmentGlobalPosition.eta()-trajectoryStateOnSurface.freeState()->position().eta()) < .3;
     } else isGood = sqrt( pow(segmentGlobalPosition.eta()-trajectoryStateOnSurface.freeState()->position().eta(),2) + 
               deltaPhi*deltaPhi) < parameters.dRMuon;

   if(isGood) {
      TAMuonSegmentMatch muonSegment;
      muonSegment.segmentGlobalPosition = getPoint(segmentGlobalPosition);
      muonSegment.segmentLocalPosition = getPoint( segment->localPosition() );
      muonSegment.segmentLocalDirection = getVector( segment->localDirection() );
      muonSegment.segmentLocalErrorXX = segment->localPositionError().xx();
      muonSegment.segmentLocalErrorYY = segment->localPositionError().yy();
      muonSegment.segmentLocalErrorXY = segment->localPositionError().xy();
      muonSegment.segmentLocalErrorDxDz = segment->localDirectionError().xx();
      muonSegment.segmentLocalErrorDyDz = segment->localDirectionError().yy();
      
      // DANGEROUS - compiler cannot guaranty parameters ordering
      // AlgebraicSymMatrix segmentCovMatrix = segment->parametersError();
      // muonSegment.segmentLocalErrorXDxDz = segmentCovMatrix[2][0];
      // muonSegment.segmentLocalErrorYDyDz = segmentCovMatrix[3][1];
      muonSegment.segmentLocalErrorXDxDz = -999;
      muonSegment.segmentLocalErrorYDyDz = -999;
      muonSegment.hasZed = true;
      muonSegment.hasPhi = true;
      
      // timing information
      muonSegment.t0 = 0;
      if ( dtseg ) {
        if ( (dtseg->hasPhi()) && (! isDTWithoutY) ) {
      int phiHits = dtseg->phiSegment()->specificRecHits().size();
      //      int zHits = dtseg->zSegment()->specificRecHits().size();
      int hits=0;
      double t0=0.;
      // TODO: cuts on hit numbers not optimized in any way yet...
      if (phiHits>5 && dtseg->phiSegment()->ist0Valid()) {
        t0+=dtseg->phiSegment()->t0()*phiHits;
        hits+=phiHits;
        LogTrace("TrackAssociator") << " Phi t0: " << dtseg->phiSegment()->t0() << " hits: " << phiHits;
      }
      // the z segments seem to contain little useful information...
//    if (zHits>3) {
//      t0+=s->zSegment()->t0()*zHits;
//      hits+=zHits;
//      std::cout << "   Z t0: " << s->zSegment()->t0() << " hits: " << zHits << std::endl;
//    }
      if (hits) muonSegment.t0 = t0/hits;
//    std::cout << " --- t0: " << muonSegment.t0 << std::endl;
        } else {
           // check and set dimensionality
           if (isDTWithoutY) muonSegment.hasZed = false;
           if (! dtseg->hasPhi()) muonSegment.hasPhi = false;
        }
      }
      matchedChamber.segments.push_back(muonSegment);
   }

   return isGood;
}

TrackDetMatchInfo TrackDetectorAssociator::associate	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const FreeTrajectoryState &	fts,
		const AssociatorParameters &	parameters
	)

propagate a track across the whole detector and find associated objects. Association is done in two modes 1) an object is associated to a track only if crossed by track 2) an object is associated to a track if it is withing an eta-phi cone of some radius with respect to a track. (the cone origin is at (0,0,0)) Trajectory bending in eta-phi is taking into account when matching is performed

associate using FreeTrajectoryState

Definition at line 156 of file TrackDetectorAssociator.cc.

Referenced by BetaCalculatorECAL::addInfoToCandidate(), EopTreeWriter::analyze(), EcalCosmicsHists::analyze(), IsolatedTracksCone::analyze(), spr::chargeIsolation(), spr::chargeIsolationEcal(), spr::chargeIsolationHcal(), spr::coneChargeIsolation(), muonisolation::JetExtractor::deposit(), muonisolation::CaloExtractorByAssociator::deposits(), cms::MuonMETValueMapProducer::determine_deltax_deltay(), MuonDetCleaner::fillHitMap(), MuonIdProducer::fillMuonId(), SelectReplacementCandidates::getRawIDsAdvanced(), getTrackDetMatchInfo(), InterestingTrackEcalDetIdProducer::produce(), HighPtTrackEcalDetIdProducer::produce(), and ReduceHcalRecHitCollectionProducer::produce().

{
   return associate(iEvent,iSetup,parameters,&fts);
}

TrackDetMatchInfo TrackDetectorAssociator::associate	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const AssociatorParameters &	parameters,
		const FreeTrajectoryState *	innerState,
		const FreeTrajectoryState *	outerState = 0
	)

associate using inner and outer most states of a track in the silicon tracker.

Definition at line 164 of file TrackDetectorAssociator.cc.

References Exception, HLT_FULL_cff::fillCaloTowers, info(), init, edm::detail::isnan(), LogTrace, PV3DBase< T, PVType, FrameType >::mag(), CosmicsPD_Skims::maxZ, HLT_FULL_cff::minR, HLT_FULL_cff::minZ, SteppingHelixStateInfo::momentum(), or, PV3DBase< T, PVType, FrameType >::perp(), FreeTrajectoryState::position(), TrackDetMatchInfo::setCaloGeometry(), TrackDetMatchInfo::stateAtIP, TrackDetMatchInfo::trkGlobPosAtEcal, TrackDetMatchInfo::trkGlobPosAtHcal, TrackDetMatchInfo::trkGlobPosAtHO, TrackDetMatchInfo::trkMomAtEcal, TrackDetMatchInfo::trkMomAtHcal, TrackDetMatchInfo::trkMomAtHO, TrackAssociatorParameters::truthMatch, TrackAssociatorParameters::useCalo, TrackAssociatorParameters::useEcal, TrackAssociatorParameters::useHcal, TrackAssociatorParameters::useHO, TrackAssociatorParameters::useMuon, TrackAssociatorParameters::usePreshower, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

{
   TrackDetMatchInfo info;
   if (! parameters.useEcal && ! parameters.useCalo && ! parameters.useHcal &&
       ! parameters.useHO && ! parameters.useMuon && !parameters.usePreshower)
     throw cms::Exception("ConfigurationError") << 
     "Configuration error! No subdetector was selected for the track association.";
   
   SteppingHelixStateInfo trackOrigin(*innerState);
   info.stateAtIP = *innerState;
   cachedTrajectory_.setStateAtIP(trackOrigin);
   
   init( iSetup );
   // get track trajectory
   // ECAL points (EB+EE)
   // If the phi angle between a track entrance and exit points is more
   // than 2 crystals, it is possible that the track will cross 3 crystals
   // and therefore one has to check at least 3 points along the track
   // trajectory inside ECAL. In order to have a chance to cross 4 crystalls
   // in the barrel, a track should have P_t as low as 3 GeV or smaller
   // If it's necessary, number of points along trajectory can be increased
   
   info.setCaloGeometry(theCaloGeometry_);
   
   cachedTrajectory_.reset_trajectory();
   // estimate propagation outer boundaries based on 
   // requested sub-detector information. For now limit
   // propagation region only if muon matching is not 
   // requested.
   double HOmaxR = hoDetIdAssociator_->volume().maxR();
   double HOmaxZ = hoDetIdAssociator_->volume().maxZ();
   double minR = ecalDetIdAssociator_->volume().minR();
   double minZ = preshowerDetIdAssociator_->volume().minZ();
   cachedTrajectory_.setMaxHORadius(HOmaxR);
   cachedTrajectory_.setMaxHOLength(HOmaxZ*2.);
   cachedTrajectory_.setMinDetectorRadius(minR);
   cachedTrajectory_.setMinDetectorLength(minZ*2.);

   if (parameters.useMuon) {
     double maxR = muonDetIdAssociator_->volume().maxR();
     double maxZ = muonDetIdAssociator_->volume().maxZ();
     cachedTrajectory_.setMaxDetectorRadius(maxR);
     cachedTrajectory_.setMaxDetectorLength(maxZ*2.);
   }
   else {
     cachedTrajectory_.setMaxDetectorRadius(HOmaxR);
     cachedTrajectory_.setMaxDetectorLength(HOmaxZ*2.);
   }
   
   // If track extras exist and outerState is before HO maximum, then use outerState
   if (outerState) {
     if (outerState->position().perp()<HOmaxR && fabs(outerState->position().z())<HOmaxZ) {
       LogTrace("TrackAssociator") << "Using outerState as trackOrigin at Rho=" << outerState->position().perp()
             << "  Z=" << outerState->position().z() << "\n";
       trackOrigin = SteppingHelixStateInfo(*outerState);
     }
     else if(innerState) {
       LogTrace("TrackAssociator") << "Using innerState as trackOrigin at Rho=" << innerState->position().perp()
             << "  Z=" << innerState->position().z() << "\n";
       trackOrigin = SteppingHelixStateInfo(*innerState);
     }
   }

   if ( trackOrigin.momentum().mag() == 0 ) return info;
   if ( std::isnan(trackOrigin.momentum().x()) or std::isnan(trackOrigin.momentum().y()) or std::isnan(trackOrigin.momentum().z()) ) return info;
   if ( ! cachedTrajectory_.propagateAll(trackOrigin) ) return info;
   
   // get trajectory in calorimeters
   cachedTrajectory_.findEcalTrajectory( ecalDetIdAssociator_->volume() );
   cachedTrajectory_.findHcalTrajectory( hcalDetIdAssociator_->volume() );
   cachedTrajectory_.findHOTrajectory( hoDetIdAssociator_->volume() );
   cachedTrajectory_.findPreshowerTrajectory( preshowerDetIdAssociator_->volume() );

   info.trkGlobPosAtEcal = getPoint( cachedTrajectory_.getStateAtEcal().position() );
   info.trkGlobPosAtHcal = getPoint( cachedTrajectory_.getStateAtHcal().position() );
   info.trkGlobPosAtHO  = getPoint( cachedTrajectory_.getStateAtHO().position() );
   
   info.trkMomAtEcal = cachedTrajectory_.getStateAtEcal().momentum();
   info.trkMomAtHcal = cachedTrajectory_.getStateAtHcal().momentum();
   info.trkMomAtHO   = cachedTrajectory_.getStateAtHO().momentum();
   
   if (parameters.useEcal) fillEcal( iEvent, info, parameters);
   if (parameters.useCalo) fillCaloTowers( iEvent, info, parameters);
   if (parameters.useHcal) fillHcal( iEvent, info, parameters);
   if (parameters.useHO)   fillHO( iEvent, info, parameters);
   if (parameters.usePreshower) fillPreshower( iEvent, info, parameters);
   if (parameters.useMuon) fillMuon( iEvent, info, parameters);
   if (parameters.truthMatch) fillCaloTruth( iEvent, info, parameters);
   
   return info;
}

TrackDetMatchInfo TrackDetectorAssociator::associate	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const reco::Track &	track,
		const AssociatorParameters &	parameters,
		Direction	direction = Any
	)

associate using reco::Track

Definition at line 958 of file TrackDetectorAssociator.cc.

References ecalTB2006H4_GenSimDigiReco_cfg::bField, Exception, reco::Track::extra(), edm::EventSetup::get(), trajectoryStateTransform::initialFreeState(), trajectoryStateTransform::innerFreeState(), reco::Track::innerMomentum(), reco::Track::innerPosition(), edm::Ref< C, T, F >::isNull(), LogTrace, trajectoryStateTransform::outerFreeState(), reco::Track::outerMomentum(), reco::Track::outerPosition(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), FreeTrajectoryState::position(), query::result, and PV3DBase< T, PVType, FrameType >::z().

{
   double currentStepSize = cachedTrajectory_.getPropagationStep();
   
   edm::ESHandle<MagneticField> bField;
   iSetup.get<IdealMagneticFieldRecord>().get(bField);

   if(track.extra().isNull()) {
      if ( direction != InsideOut ) 
    throw cms::Exception("FatalError") << 
    "No TrackExtra information is available and association is done with something else than InsideOut track.\n" <<
    "Either change the parameter or provide needed data!\n";
     LogTrace("TrackAssociator") << "Track Extras not found\n";
     FreeTrajectoryState initialState = trajectoryStateTransform::initialFreeState(track,&*bField);
     return associate(iEvent, iSetup, parameters, &initialState); // 5th argument is null pointer
   }
   
   LogTrace("TrackAssociator") << "Track Extras found\n";
   FreeTrajectoryState innerState = trajectoryStateTransform::innerFreeState(track,&*bField);
   FreeTrajectoryState outerState = trajectoryStateTransform::outerFreeState(track,&*bField);
   FreeTrajectoryState referenceState = trajectoryStateTransform::initialFreeState(track,&*bField);
   
   LogTrace("TrackAssociator") << "inner track state (rho, z, phi):" << 
     track.innerPosition().Rho() << ", " << track.innerPosition().z() <<
     ", " << track.innerPosition().phi() << "\n";
   LogTrace("TrackAssociator") << "innerFreeState (rho, z, phi):" << 
     innerState.position().perp() << ", " << innerState.position().z() <<
     ", " << innerState.position().phi() << "\n";
   
   LogTrace("TrackAssociator") << "outer track state (rho, z, phi):" << 
     track.outerPosition().Rho() << ", " << track.outerPosition().z() <<
     ", " << track.outerPosition().phi() << "\n";
   LogTrace("TrackAssociator") << "outerFreeState (rho, z, phi):" << 
     outerState.position().perp() << ", " << outerState.position().z() <<
     ", " << outerState.position().phi() << "\n";
   
   // InsideOut first
   if ( crossedIP( track ) ) {
      switch ( direction ) {
       case InsideOut:
       case Any:
     return associate(iEvent, iSetup, parameters, &referenceState, &outerState);
     break;
       case OutsideIn:
       {
          cachedTrajectory_.setPropagationStep( -fabs(currentStepSize) );
          TrackDetMatchInfo result = associate(iEvent, iSetup, parameters, &innerState, &referenceState);
          cachedTrajectory_.setPropagationStep( currentStepSize );
          return result;
          break;
       }
      }
   } else {
      switch ( direction ) {
       case InsideOut:
     return associate(iEvent, iSetup, parameters, &innerState, &outerState);
     break;
       case OutsideIn:
       {
          cachedTrajectory_.setPropagationStep( -fabs(currentStepSize) );
          TrackDetMatchInfo result = associate(iEvent, iSetup, parameters, &outerState, &innerState);
          cachedTrajectory_.setPropagationStep( currentStepSize );
          return result;
          break;
       }
       case Any:
       {
          // check if we deal with clear outside-in case
          if ( track.innerPosition().Dot( track.innerMomentum() ) < 0 &&
           track.outerPosition().Dot( track.outerMomentum() ) < 0 )
        {
           cachedTrajectory_.setPropagationStep( -fabs(currentStepSize) );
           TrackDetMatchInfo result;
           if ( track.innerPosition().R() < track.outerPosition().R() )
             result = associate(iEvent, iSetup, parameters, &innerState, &outerState);
           else
             result = associate(iEvent, iSetup, parameters, &outerState, &innerState);
           cachedTrajectory_.setPropagationStep( currentStepSize );
           return result;
        }
       }
      }
   }
    
   // all other cases  
   return associate(iEvent, iSetup, parameters, &innerState, &outerState);
}

TrackDetMatchInfo TrackDetectorAssociator::associate	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const SimTrack &	track,
		const SimVertex &	vertex,
		const AssociatorParameters &	parameters
	)

associate using a simulated track

Definition at line 1050 of file TrackDetectorAssociator.cc.

{
   return associate(iEvent, iSetup, getFreeTrajectoryState(iSetup, track, vertex), parameters);
}

TrackDetMatchInfo TrackDetectorAssociator::associate	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const GlobalVector &	momentum,
		const GlobalPoint &	vertex,
		const int	charge,
		const AssociatorParameters &	parameters
	)

associate using 3-momentum, vertex and charge

Definition at line 1059 of file TrackDetectorAssociator.cc.

{
   return associate(iEvent, iSetup, getFreeTrajectoryState(iSetup, momentum, vertex, charge), parameters);
}

bool TrackDetectorAssociator::crossedIP ( const reco::Track &  track )

static

Definition at line 1069 of file TrackDetectorAssociator.cc.

References reco::Track::innerMomentum(), reco::Track::innerPosition(), reco::Track::outerMomentum(), and reco::Track::outerPosition().

Referenced by MuonIdProducer::produce().

{
   bool crossed = true;
   crossed &= (track.innerPosition().rho() > 3 ); // something close to active volume
   crossed &= (track.outerPosition().rho() > 3 ); // something close to active volume
   crossed &=  ( ( track.innerPosition().x()*track.innerMomentum().x() +
           track.innerPosition().y()*track.innerMomentum().y() < 0 ) !=
         ( track.outerPosition().x()*track.outerMomentum().x() + 
           track.outerPosition().y()*track.outerMomentum().y() < 0 ) );
   return crossed;
}

void TrackDetectorAssociator::fillCaloTowers ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 332 of file TrackDetectorAssociator.cc.

References TrackAssociatorParameters::accountForTrajectoryChangeCalo, HLT_FULL_cff::caloTowers, TrackAssociatorParameters::caloTowersToken, TrackDetMatchInfo::crossedTowerIds, TrackDetMatchInfo::crossedTowers, HLT_FULL_cff::distance, TrackAssociatorParameters::dRHcal, TrackAssociatorParameters::dRHcalPreselection, edm::Event::getByToken(), CachedTrajectory::IpToHcal, TrackDetMatchInfo::isGoodCalo, edm::HandleBase::isValid(), LogTrace, and TrackDetMatchInfo::towers.

{
   // use ECAL and HCAL trajectories to match a tower. (HO isn't used for matching).
   std::vector<GlobalPoint> trajectory;
   const std::vector<SteppingHelixStateInfo>& ecalTrajectoryStates = cachedTrajectory_.getEcalTrajectory();
   const std::vector<SteppingHelixStateInfo>& hcalTrajectoryStates = cachedTrajectory_.getHcalTrajectory();
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = ecalTrajectoryStates.begin();
       itr != ecalTrajectoryStates.end(); itr++) trajectory.push_back(itr->position());
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = hcalTrajectoryStates.begin();
       itr != hcalTrajectoryStates.end(); itr++) trajectory.push_back(itr->position());
   
   if(trajectory.empty()) {
      LogTrace("TrackAssociator") << "HCAL trajectory is empty; moving on\n";
      info.isGoodCalo = 0;
      return;
   }
   info.isGoodCalo = 1;
   
   // find crossed CaloTowers
   edm::Handle<CaloTowerCollection> caloTowers;
   iEvent.getByToken(parameters.caloTowersToken, caloTowers);
   if (!caloTowers.isValid())  throw cms::Exception("FatalError") << "Unable to find CaloTowers in event!\n";
   
   std::set<DetId> caloTowerIdsInRegion;
   if (parameters.accountForTrajectoryChangeCalo){
      // get trajectory change with respect to initial state
      DetIdAssociator::MapRange mapRange = getMapRange(cachedTrajectory_.trajectoryDelta(CachedTrajectory::IpToHcal),
                               parameters.dRHcalPreselection);
      caloTowerIdsInRegion = caloDetIdAssociator_->getDetIdsCloseToAPoint(trajectory[0],mapRange);
   } else caloTowerIdsInRegion = caloDetIdAssociator_->getDetIdsCloseToAPoint(trajectory[0], parameters.dRHcalPreselection);
   
   LogTrace("TrackAssociator") << "Towers in the region: " << caloTowerIdsInRegion.size();

   auto caloTowerIdsInAConeBegin = caloTowerIdsInRegion.begin();
   auto caloTowerIdsInAConeEnd = caloTowerIdsInRegion.end();
   std::set<DetId> caloTowerIdsInAConeTmp;
   if (!caloDetIdAssociator_->selectAllInACone(parameters.dRHcal)){
     caloTowerIdsInAConeTmp = caloDetIdAssociator_->getDetIdsInACone(caloTowerIdsInRegion, trajectory, parameters.dRHcal);
     caloTowerIdsInAConeBegin = caloTowerIdsInAConeTmp.begin();
     caloTowerIdsInAConeEnd = caloTowerIdsInAConeTmp.end();
   }
   LogTrace("TrackAssociator") << "Towers in the cone: " << std::distance(caloTowerIdsInAConeBegin, caloTowerIdsInAConeEnd);

   info.crossedTowerIds = caloDetIdAssociator_->getCrossedDetIds(caloTowerIdsInRegion, trajectory);
   const std::vector<DetId>& crossedCaloTowerIds = info.crossedTowerIds;
   LogTrace("TrackAssociator") << "Towers crossed: " << crossedCaloTowerIds.size();
   
   // add CaloTowers
   for(std::vector<DetId>::const_iterator itr=crossedCaloTowerIds.begin(); itr!=crossedCaloTowerIds.end();itr++)
     {
    CaloTowerCollection::const_iterator tower = (*caloTowers).find(*itr);
    if(tower != (*caloTowers).end()) 
      info.crossedTowers.push_back(&*tower);
    else
      LogTrace("TrackAssociator") << "Crossed CaloTower is not found for DetId: " << (*itr).rawId();
     }
   
   for(std::set<DetId>::const_iterator itr=caloTowerIdsInAConeBegin; itr!=caloTowerIdsInAConeEnd;itr++)
     {
    CaloTowerCollection::const_iterator tower = (*caloTowers).find(*itr);
    if(tower != (*caloTowers).end()) 
      info.towers.push_back(&*tower);
    else 
      LogTrace("TrackAssociator") << "CaloTower from the cone is not found for DetId: " << (*itr).rawId();
     }
   
}

void TrackDetectorAssociator::fillCaloTruth ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 898 of file TrackDetectorAssociator.cc.

References HLT_FULL_cff::DeltaR, TrackDetMatchInfo::ecalTrueEnergy, SimTrack::genpartIndex(), edm::Event::getByToken(), TrackDetMatchInfo::hcalTrueEnergy, TrackDetMatchInfo::hcalTrueEnergyCorrected, FreeTrajectoryState::momentum(), TrackAssociatorParameters::simEcalHitsEBToken, TrackAssociatorParameters::simEcalHitsEEToken, TrackAssociatorParameters::simHcalHitsToken, TrackDetMatchInfo::simTrack, TrackAssociatorParameters::simTracksToken, TrackAssociatorParameters::simVerticesToken, TrackDetMatchInfo::stateAtIP, TrackDetMatchInfo::trkGlobPosAtHcal, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

{
   // get list of simulated tracks and their vertices
   using namespace edm;
   Handle<SimTrackContainer> simTracks;
   iEvent.getByToken(parameters.simTracksToken, simTracks);
   if (! simTracks.isValid() ) throw cms::Exception("FatalError") << "No simulated tracks found\n";
   
   Handle<SimVertexContainer> simVertices;
   iEvent.getByToken(parameters.simVerticesToken, simVertices);
   if (! simVertices.isValid() ) throw cms::Exception("FatalError") << "No simulated vertices found\n";
   
   // get sim calo hits
   Handle<PCaloHitContainer> simEcalHitsEB;
   iEvent.getByToken(parameters.simEcalHitsEBToken, simEcalHitsEB);
   if (! simEcalHitsEB.isValid() ) throw cms::Exception("FatalError") << "No simulated ECAL EB hits found\n";

   Handle<PCaloHitContainer> simEcalHitsEE;
   iEvent.getByToken(parameters.simEcalHitsEEToken, simEcalHitsEE);
   if (! simEcalHitsEE.isValid() ) throw cms::Exception("FatalError") << "No simulated ECAL EE hits found\n";

   Handle<PCaloHitContainer> simHcalHits;
   iEvent.getByToken(parameters.simHcalHitsToken, simHcalHits);
   if (! simHcalHits.isValid() ) throw cms::Exception("FatalError") << "No simulated HCAL hits found\n";

   // find truth partner
   SimTrackContainer::const_iterator simTrack = simTracks->begin();
   for( ; simTrack != simTracks->end(); ++simTrack){
      math::XYZVector simP3( simTrack->momentum().x(), simTrack->momentum().y(), simTrack->momentum().z() );
      math::XYZVector recoP3( info.stateAtIP.momentum().x(), info.stateAtIP.momentum().y(), info.stateAtIP.momentum().z() );
      if ( ROOT::Math::VectorUtil::DeltaR(recoP3, simP3) < 0.1 ) break;
   }
   if ( simTrack != simTracks->end() ) {
      info.simTrack = &(*simTrack);
      double ecalTrueEnergy(0);
      double hcalTrueEnergy(0);
      
      // loop over calo hits
      for( PCaloHitContainer::const_iterator hit = simEcalHitsEB->begin(); hit != simEcalHitsEB->end(); ++hit )
    if ( hit->geantTrackId() == info.simTrack->genpartIndex() ) ecalTrueEnergy += hit->energy();
      
      for( PCaloHitContainer::const_iterator hit = simEcalHitsEE->begin(); hit != simEcalHitsEE->end(); ++hit )
    if ( hit->geantTrackId() == info.simTrack->genpartIndex() ) ecalTrueEnergy += hit->energy();
      
      for( PCaloHitContainer::const_iterator hit = simHcalHits->begin(); hit != simHcalHits->end(); ++hit )
    if ( hit->geantTrackId() == info.simTrack->genpartIndex() ) hcalTrueEnergy += hit->energy();
      
      info.ecalTrueEnergy = ecalTrueEnergy;
      info.hcalTrueEnergy = hcalTrueEnergy;
      info.hcalTrueEnergyCorrected = hcalTrueEnergy;
      if ( fabs(info.trkGlobPosAtHcal.eta()) < 1.3 )
    info.hcalTrueEnergyCorrected = hcalTrueEnergy*113.2;
      else 
    if ( fabs(info.trkGlobPosAtHcal.eta()) < 3.0 )
      info.hcalTrueEnergyCorrected = hcalTrueEnergy*167.2;
   }
}

void TrackDetectorAssociator::fillEcal ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 260 of file TrackDetectorAssociator.cc.

References TrackAssociatorParameters::accountForTrajectoryChangeCalo, TrackDetMatchInfo::crossedEcalIds, TrackDetMatchInfo::crossedEcalRecHits, TrackAssociatorParameters::dREcal, TrackAssociatorParameters::dREcalPreselection, egHLT::errCodes::EBRecHits, TrackAssociatorParameters::EBRecHitsToken, TrackDetMatchInfo::ecalRecHits, egHLT::errCodes::EERecHits, TrackAssociatorParameters::EERecHitsToken, edm::Event::getByToken(), CachedTrajectory::IpToEcal, TrackDetMatchInfo::isGoodEcal, edm::HandleBase::isValid(), and LogTrace.

{
   const std::vector<SteppingHelixStateInfo>& trajectoryStates = cachedTrajectory_.getEcalTrajectory();
   
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = trajectoryStates.begin();
       itr != trajectoryStates.end(); itr++) 
     LogTrace("TrackAssociator") << "ECAL trajectory point (rho, z, phi): " << itr->position().perp() <<
     ", " << itr->position().z() << ", " << itr->position().phi();

   std::vector<GlobalPoint> coreTrajectory;
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = trajectoryStates.begin();
       itr != trajectoryStates.end(); itr++) coreTrajectory.push_back(itr->position());
   
   if(coreTrajectory.empty()) {
      LogTrace("TrackAssociator") << "ECAL track trajectory is empty; moving on\n";
      info.isGoodEcal = 0;
      return;
   }
   info.isGoodEcal = 1;

   // Find ECAL crystals
   edm::Handle<EBRecHitCollection> EBRecHits;
   iEvent.getByToken(parameters.EBRecHitsToken, EBRecHits);
   if (!EBRecHits.isValid()) throw cms::Exception("FatalError") << "Unable to find EBRecHitCollection in the event!\n";

   edm::Handle<EERecHitCollection> EERecHits;
   iEvent.getByToken(parameters.EERecHitsToken, EERecHits);
   if (!EERecHits.isValid()) throw cms::Exception("FatalError") << "Unable to find EERecHitCollection in event!\n";

   std::set<DetId> ecalIdsInRegion;
   if (parameters.accountForTrajectoryChangeCalo){
      // get trajectory change with respect to initial state
      DetIdAssociator::MapRange mapRange = getMapRange(cachedTrajectory_.trajectoryDelta(CachedTrajectory::IpToEcal),
                               parameters.dREcalPreselection);
      ecalIdsInRegion = ecalDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0],mapRange);
   } else ecalIdsInRegion = ecalDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0], parameters.dREcalPreselection);
   LogTrace("TrackAssociator") << "ECAL hits in the region: " << ecalIdsInRegion.size();
   if (parameters.dREcalPreselection > parameters.dREcal)
     ecalIdsInRegion =  ecalDetIdAssociator_->getDetIdsInACone(ecalIdsInRegion, coreTrajectory, parameters.dREcal);
   LogTrace("TrackAssociator") << "ECAL hits in the cone: " << ecalIdsInRegion.size();
   info.crossedEcalIds  = ecalDetIdAssociator_->getCrossedDetIds(ecalIdsInRegion, coreTrajectory);
   const std::vector<DetId>& crossedEcalIds =  info.crossedEcalIds;
   LogTrace("TrackAssociator") << "ECAL crossed hits " << crossedEcalIds.size();
   

   // add EcalRecHits
   for(std::vector<DetId>::const_iterator itr=crossedEcalIds.begin(); itr!=crossedEcalIds.end();itr++)
   {
      std::vector<EcalRecHit>::const_iterator ebHit = (*EBRecHits).find(*itr);
      std::vector<EcalRecHit>::const_iterator eeHit = (*EERecHits).find(*itr);
      if(ebHit != (*EBRecHits).end()) 
         info.crossedEcalRecHits.push_back(&*ebHit);
      else if(eeHit != (*EERecHits).end()) 
         info.crossedEcalRecHits.push_back(&*eeHit);
      else  
         LogTrace("TrackAssociator") << "Crossed EcalRecHit is not found for DetId: " << itr->rawId();
   }
   for(std::set<DetId>::const_iterator itr=ecalIdsInRegion.begin(); itr!=ecalIdsInRegion.end();itr++)
   {
      std::vector<EcalRecHit>::const_iterator ebHit = (*EBRecHits).find(*itr);
      std::vector<EcalRecHit>::const_iterator eeHit = (*EERecHits).find(*itr);
      if(ebHit != (*EBRecHits).end()) 
         info.ecalRecHits.push_back(&*ebHit);
      else if(eeHit != (*EERecHits).end()) 
         info.ecalRecHits.push_back(&*eeHit);
      else 
         LogTrace("TrackAssociator") << "EcalRecHit from the cone is not found for DetId: " << itr->rawId();
   }
}

void TrackDetectorAssociator::fillHcal ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 426 of file TrackDetectorAssociator.cc.

References TrackAssociatorParameters::accountForTrajectoryChangeCalo, runEdmFileComparison::collection, TrackDetMatchInfo::crossedHcalIds, TrackDetMatchInfo::crossedHcalRecHits, HLT_FULL_cff::distance, TrackAssociatorParameters::dRHcal, TrackAssociatorParameters::dRHcalPreselection, edm::Event::getByToken(), TrackAssociatorParameters::HBHEcollToken, TrackDetMatchInfo::hcalRecHits, DetIdInfo::info(), CachedTrajectory::IpToHcal, TrackDetMatchInfo::isGoodHcal, edm::HandleBase::isValid(), and LogTrace.

{
   const std::vector<SteppingHelixStateInfo>& trajectoryStates = cachedTrajectory_.getHcalTrajectory();

   std::vector<GlobalPoint> coreTrajectory;
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = trajectoryStates.begin();
       itr != trajectoryStates.end(); itr++) coreTrajectory.push_back(itr->position());   
   
   if(coreTrajectory.empty()) {
      LogTrace("TrackAssociator") << "HCAL trajectory is empty; moving on\n";
      info.isGoodHcal = 0;
      return;
   }
   info.isGoodHcal = 1;
   
   // find crossed Hcals
   edm::Handle<HBHERecHitCollection> collection;
   iEvent.getByToken(parameters.HBHEcollToken, collection);
   if ( ! collection.isValid() ) throw cms::Exception("FatalError") << "Unable to find HBHERecHits in event!\n";
   
   std::set<DetId> idsInRegion;
   if (parameters.accountForTrajectoryChangeCalo){
      // get trajectory change with respect to initial state
      DetIdAssociator::MapRange mapRange = getMapRange(cachedTrajectory_.trajectoryDelta(CachedTrajectory::IpToHcal),
                               parameters.dRHcalPreselection);
      idsInRegion = hcalDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0], mapRange);
   } else idsInRegion = hcalDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0], parameters.dRHcalPreselection);
   
   LogTrace("TrackAssociator") << "HCAL hits in the region: " << idsInRegion.size() << "\n" << DetIdInfo::info(idsInRegion,0);

   auto idsInAConeBegin = idsInRegion.begin();
   auto idsInAConeEnd = idsInRegion.end();
   std::set<DetId> idsInAConeTmp;
   if (! hcalDetIdAssociator_->selectAllInACone(parameters.dRHcal)){
     idsInAConeTmp = hcalDetIdAssociator_->getDetIdsInACone(idsInRegion, coreTrajectory, parameters.dRHcal);
     idsInAConeBegin = idsInAConeTmp.begin();
     idsInAConeEnd = idsInAConeTmp.end();
   }
   LogTrace("TrackAssociator") << "HCAL hits in the cone: " << std::distance(idsInAConeBegin, idsInAConeEnd) << "\n" 
                   << DetIdInfo::info(std::set<DetId>(idsInAConeBegin, idsInAConeEnd), 0);
   info.crossedHcalIds = hcalDetIdAssociator_->getCrossedDetIds(idsInRegion, coreTrajectory);
   const std::vector<DetId>& crossedIds = info.crossedHcalIds;
   LogTrace("TrackAssociator") << "HCAL hits crossed: " << crossedIds.size() << "\n" << DetIdInfo::info(crossedIds,0);
   
   // add Hcal
   for(std::vector<DetId>::const_iterator itr=crossedIds.begin(); itr!=crossedIds.end();itr++)
     {
    HBHERecHitCollection::const_iterator hit = (*collection).find(*itr);
    if( hit != (*collection).end() ) 
      info.crossedHcalRecHits.push_back(&*hit);
    else
      LogTrace("TrackAssociator") << "Crossed HBHERecHit is not found for DetId: " << itr->rawId();
     }
   for(std::set<DetId>::const_iterator itr=idsInAConeBegin; itr!=idsInAConeEnd;itr++)
     {
    HBHERecHitCollection::const_iterator hit = (*collection).find(*itr);
    if( hit != (*collection).end() ) 
      info.hcalRecHits.push_back(&*hit);
    else 
      LogTrace("TrackAssociator") << "HBHERecHit from the cone is not found for DetId: " << itr->rawId();
     }
}

void TrackDetectorAssociator::fillHO ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 491 of file TrackDetectorAssociator.cc.

References TrackAssociatorParameters::accountForTrajectoryChangeCalo, runEdmFileComparison::collection, TrackDetMatchInfo::crossedHOIds, TrackDetMatchInfo::crossedHORecHits, HLT_FULL_cff::distance, TrackAssociatorParameters::dRHcal, TrackAssociatorParameters::dRHcalPreselection, edm::Event::getByToken(), TrackAssociatorParameters::HOcollToken, TrackDetMatchInfo::hoRecHits, CachedTrajectory::IpToHO, TrackDetMatchInfo::isGoodHO, edm::HandleBase::isValid(), and LogTrace.

{
   const std::vector<SteppingHelixStateInfo>& trajectoryStates = cachedTrajectory_.getHOTrajectory();

   std::vector<GlobalPoint> coreTrajectory;
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = trajectoryStates.begin();
       itr != trajectoryStates.end(); itr++) coreTrajectory.push_back(itr->position());

   if(coreTrajectory.empty()) {
      LogTrace("TrackAssociator") << "HO trajectory is empty; moving on\n";
      info.isGoodHO = 0;
      return;
   }
   info.isGoodHO = 1;
   
   // find crossed HOs
   edm::Handle<HORecHitCollection> collection;
   iEvent.getByToken(parameters.HOcollToken, collection);
   if ( ! collection.isValid() ) throw cms::Exception("FatalError") << "Unable to find HORecHits in event!\n";
   
   std::set<DetId> idsInRegion;
   if (parameters.accountForTrajectoryChangeCalo){
      // get trajectory change with respect to initial state
      DetIdAssociator::MapRange mapRange = getMapRange(cachedTrajectory_.trajectoryDelta(CachedTrajectory::IpToHO),
                               parameters.dRHcalPreselection);
      idsInRegion = hoDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0], mapRange);
   } else idsInRegion = hoDetIdAssociator_->getDetIdsCloseToAPoint(coreTrajectory[0], parameters.dRHcalPreselection);
   
   LogTrace("TrackAssociator") << "idsInRegion.size(): " << idsInRegion.size();

   auto idsInAConeBegin = idsInRegion.begin();
   auto idsInAConeEnd = idsInRegion.end();
   std::set<DetId> idsInAConeTmp;
   if (! hoDetIdAssociator_->selectAllInACone(parameters.dRHcal)){
     idsInAConeTmp = hoDetIdAssociator_->getDetIdsInACone(idsInRegion, coreTrajectory, parameters.dRHcal);
     idsInAConeBegin = idsInAConeTmp.begin();
     idsInAConeEnd = idsInAConeTmp.end();
   }
   LogTrace("TrackAssociator") << "idsInACone.size(): " << std::distance(idsInAConeBegin, idsInAConeEnd);
   info.crossedHOIds = hoDetIdAssociator_->getCrossedDetIds(idsInRegion, coreTrajectory);
   const std::vector<DetId>& crossedIds = info.crossedHOIds;
   
   // add HO
   for(std::vector<DetId>::const_iterator itr=crossedIds.begin(); itr!=crossedIds.end();itr++)
     {
    HORecHitCollection::const_iterator hit = (*collection).find(*itr);
    if( hit != (*collection).end() ) 
      info.crossedHORecHits.push_back(&*hit);
    else
      LogTrace("TrackAssociator") << "Crossed HORecHit is not found for DetId: " << itr->rawId();
     }

   for(std::set<DetId>::const_iterator itr=idsInAConeBegin; itr!=idsInAConeEnd;itr++)
     {
    HORecHitCollection::const_iterator hit = (*collection).find(*itr);
    if( hit != (*collection).end() ) 
      info.hoRecHits.push_back(&*hit);
    else 
      LogTrace("TrackAssociator") << "HORecHit from the cone is not found for DetId: " << itr->rawId();
     }
}

void TrackDetectorAssociator::fillMuon ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 738 of file TrackDetectorAssociator.cc.

References TrackDetMatchInfo::chambers, HLT_FULL_cff::cscSegments, TrackAssociatorParameters::cscSegmentsToken, TrackAssociatorParameters::dtSegmentsToken, edm::Event::getByToken(), edm::HandleBase::isValid(), and LogTrace.

{
   // Get the segments from the event
   edm::Handle<DTRecSegment4DCollection> dtSegments;
   iEvent.getByToken(parameters.dtSegmentsToken, dtSegments);
   if (! dtSegments.isValid()) 
     throw cms::Exception("FatalError") << "Unable to find DTRecSegment4DCollection in event!\n";
   
   edm::Handle<CSCSegmentCollection> cscSegments;
   iEvent.getByToken(parameters.cscSegmentsToken, cscSegments);
   if (! cscSegments.isValid()) 
     throw cms::Exception("FatalError") << "Unable to find CSCSegmentCollection in event!\n";

   
   // check the map of available segments
   // if there is no segments in a given direction at all,
   // then there is no point to fly there.
   // 
   // MISSING
   // Possible solution: quick search for presence of segments 
   // for the set of DetIds

   // get a set of matches corresponding to muon chambers
   std::vector<TAMuonChamberMatch> matchedChambers;
   LogTrace("TrackAssociator") << "Trying to Get ChamberMatches" << std::endl;
   getTAMuonChamberMatches(matchedChambers, parameters);
   LogTrace("TrackAssociator") << "Chambers matched: " << matchedChambers.size() << "\n";
   
   // Iterate over all chamber matches and fill segment matching 
   // info if it's available
   for(std::vector<TAMuonChamberMatch>::iterator matchedChamber = matchedChambers.begin(); 
       matchedChamber != matchedChambers.end(); matchedChamber++)
     {
    const GeomDet* geomDet = muonDetIdAssociator_->getGeomDet((*matchedChamber).id);
    // DT chamber
    if(const DTChamber* chamber = dynamic_cast<const DTChamber*>(geomDet) ) {
       // Get the range for the corresponding segments
       DTRecSegment4DCollection::range  range = dtSegments->get(chamber->id());
       // Loop over the segments of this chamber
       for (DTRecSegment4DCollection::const_iterator segment = range.first; segment!=range.second; segment++) {
         if (addTAMuonSegmentMatch(*matchedChamber, &(*segment), parameters)) {
                matchedChamber->segments.back().dtSegmentRef = DTRecSegment4DRef(dtSegments, segment - dtSegments->begin());
             }
           }
    }else{
       // CSC Chamber
       if(const CSCChamber* chamber = dynamic_cast<const CSCChamber*>(geomDet) ) {
          // Get the range for the corresponding segments
          CSCSegmentCollection::range  range = cscSegments->get(chamber->id());
          // Loop over the segments
          for (CSCSegmentCollection::const_iterator segment = range.first; segment!=range.second; segment++) {
         if (addTAMuonSegmentMatch(*matchedChamber, &(*segment), parameters)) {
                     matchedChamber->segments.back().cscSegmentRef = CSCSegmentRef(cscSegments, segment - cscSegments->begin());
                 }
              }
       }else{
         // throw cms::Exception("FatalError") << "Failed to cast GeomDet object to either DTChamber or CSCChamber. Who is this guy anyway?\n";
       }
    }
    info.chambers.push_back(*matchedChamber);
     }
}

void TrackDetectorAssociator::fillPreshower ( const edm::Event &  iEvent, TrackDetMatchInfo &  info, const AssociatorParameters &  parameters  )

private

Definition at line 402 of file TrackDetectorAssociator.cc.

References TrackDetMatchInfo::crossedPreshowerIds, TrackAssociatorParameters::dRPreshowerPreselection, and LogTrace.

{
   std::vector<GlobalPoint> trajectory;
   const std::vector<SteppingHelixStateInfo>& trajectoryStates = cachedTrajectory_.getPreshowerTrajectory();
   for(std::vector<SteppingHelixStateInfo>::const_iterator itr = trajectoryStates.begin();
       itr != trajectoryStates.end(); itr++) trajectory.push_back(itr->position());
   
   if(trajectory.empty()) {
      LogTrace("TrackAssociator") << "Preshower trajectory is empty; moving on\n";
      return;
   }
   
   std::set<DetId> idsInRegion = 
     preshowerDetIdAssociator_->getDetIdsCloseToAPoint(trajectory[0], 
                               parameters.dRPreshowerPreselection);
   
   LogTrace("TrackAssociator") << "Number of Preshower Ids in the region: " << idsInRegion.size();
   info.crossedPreshowerIds = preshowerDetIdAssociator_->getCrossedDetIds(idsInRegion, trajectory);
   LogTrace("TrackAssociator") << "Number of Preshower Ids in crossed: " << info.crossedPreshowerIds.size();
}

const CachedTrajectory& TrackDetectorAssociator::getCachedTrajector ( ) const

inline

trajector information

Definition at line 102 of file TrackDetectorAssociator.h.

References cachedTrajectory_.

Referenced by MuonCaloDistanceProducer::fillDistanceMap().

     {return cachedTrajectory_;}

FreeTrajectoryState TrackDetectorAssociator::getFreeTrajectoryState ( const edm::EventSetup &  iSetup, const reco::Track &  track  )

static

get FreeTrajectoryState from different track representations

Definition at line 588 of file TrackDetectorAssociator.cc.

References ecalTB2006H4_GenSimDigiReco_cfg::bField, reco::TrackBase::charge(), alignCSCRings::e, edm::EventSetup::get(), reco::TrackBase::momentum(), point, and reco::TrackBase::vertex().

Referenced by BetaCalculatorECAL::addInfoToCandidate(), EopTreeWriter::analyze(), IsolatedTracksCone::analyze(), spr::chargeIsolation(), spr::chargeIsolationEcal(), spr::chargeIsolationHcal(), spr::coneChargeIsolation(), cms::MuonMETValueMapProducer::determine_deltax_deltay(), and InterestingTrackEcalDetIdProducer::produce().

{
   edm::ESHandle<MagneticField> bField;
   iSetup.get<IdealMagneticFieldRecord>().get(bField);
   
   GlobalVector vector( track.momentum().x(), track.momentum().y(), track.momentum().z() );

   GlobalPoint point( track.vertex().x(), track.vertex().y(),  track.vertex().z() );

   GlobalTrajectoryParameters tPars(point, vector, track.charge(), &*bField);
   
   // FIX THIS !!!
   // need to convert from perigee to global or helix (curvilinear) frame
   // for now just an arbitrary matrix.
   ROOT::Math::SMatrixIdentity id;
   AlgebraicSymMatrix66 covT(id); covT *= 1e-6; // initialize to sigma=1e-3
   CartesianTrajectoryError tCov(covT);
   
   return FreeTrajectoryState(tPars, tCov);
}

FreeTrajectoryState TrackDetectorAssociator::getFreeTrajectoryState ( const edm::EventSetup &  iSetup, const SimTrack &  track, const SimVertex &  vertex  )

static

Definition at line 555 of file TrackDetectorAssociator.cc.

References funct::abs(), RecoTauCleanerPlugins::charge, CoreSimTrack::momentum(), point, CoreSimVertex::position(), and CoreSimTrack::type().

{
   GlobalVector vector( track.momentum().x(), track.momentum().y(), track.momentum().z() );
   GlobalPoint point( vertex.position().x(), vertex.position().y(), vertex.position().z() );

   int charge = track.type( )> 0 ? -1 : 1; // lepton convention
   if ( abs(track.type( )) == 211 || // pion
    abs(track.type( )) == 321 || // kaon
    abs(track.type( )) == 2212 )
     charge = track.type( )< 0 ? -1 : 1;
   return getFreeTrajectoryState(iSetup, vector, point, charge);
}

FreeTrajectoryState TrackDetectorAssociator::getFreeTrajectoryState ( const edm::EventSetup &  iSetup, const GlobalVector &  momentum, const GlobalPoint &  vertex, const int  charge  )

static

Definition at line 570 of file TrackDetectorAssociator.cc.

References ecalTB2006H4_GenSimDigiReco_cfg::bField, alignCSCRings::e, and edm::EventSetup::get().

{
   edm::ESHandle<MagneticField> bField;
   iSetup.get<IdealMagneticFieldRecord>().get(bField);
   
   GlobalTrajectoryParameters tPars(vertex, momentum, charge, &*bField);
   
   ROOT::Math::SMatrixIdentity id;
   AlgebraicSymMatrix66 covT(id); covT *= 1e-6; // initialize to sigma=1e-3
   CartesianTrajectoryError tCov(covT);
   
   return FreeTrajectoryState(tPars, tCov);
}

DetIdAssociator::MapRange TrackDetectorAssociator::getMapRange ( const std::pair< float, float > &  delta, const float  dR  )

private

Definition at line 610 of file TrackDetectorAssociator.cc.

References DetIdAssociator::MapRange::dPhiMinus, DetIdAssociator::MapRange::dPhiPlus, PFRecoTauDiscriminationAgainstElectronDeadECAL_cfi::dR, DetIdAssociator::MapRange::dThetaMinus, DetIdAssociator::MapRange::dThetaPlus, and LogTrace.

{
   DetIdAssociator::MapRange mapRange;
   mapRange.dThetaPlus = dR;
   mapRange.dThetaMinus = dR;
   mapRange.dPhiPlus = dR;
   mapRange.dPhiMinus = dR;
   if ( delta.first > 0 ) 
     mapRange.dThetaPlus += delta.first;
   else
     mapRange.dThetaMinus += fabs(delta.first);
   if ( delta.second > 0 ) 
     mapRange.dPhiPlus += delta.second;
   else
     mapRange.dPhiMinus += fabs(delta.second);
   LogTrace("TrackAssociator") << "Selection range: (dThetaPlus, dThetaMinus, dPhiPlus, dPhiMinus, dRPreselection): " <<
     mapRange.dThetaPlus << ", " << mapRange.dThetaMinus << ", " << 
     mapRange.dPhiPlus << ", " << mapRange.dPhiMinus << ", " << dR;
   return mapRange;
}

math::XYZPoint TrackDetectorAssociator::getPoint ( const GlobalPoint &  point )

inlineprivate

Definition at line 165 of file TrackDetectorAssociator.h.

References point.

     {
    return math::XYZPoint(point.x(),point.y(),point.z());
     }

math::XYZPoint TrackDetectorAssociator::getPoint ( const LocalPoint &  point )

inlineprivate

Definition at line 170 of file TrackDetectorAssociator.h.

References point.

     {
    return math::XYZPoint(point.x(),point.y(),point.z());
     }

void TrackDetectorAssociator::getTAMuonChamberMatches ( std::vector< TAMuonChamberMatch > &  matches, const AssociatorParameters &  parameters  )

private

Definition at line 632 of file TrackDetectorAssociator.cc.

References Surface::bounds(), TrackAssociatorParameters::dRMuonPreselection, TrajectoryStateOnSurface::freeState(), CachedTrajectory::FullTrajectory, TAMuonChamberMatch::id, DetIdInfo::info(), TrajectoryStateOnSurface::isValid(), SteppingHelixStateInfo::isValid(), Bounds::length(), CSCWireTopology::lengthOfPlane(), TAMuonChamberMatch::localDistanceX, TAMuonChamberMatch::localDistanceY, TrajectoryStateOnSurface::localError(), LogTrace, match(), SteppingHelixStateInfo::momentum(), TrackAssociatorParameters::muonMaxDistanceSigmaX, TrackAssociatorParameters::muonMaxDistanceSigmaY, TrackAssociatorParameters::muonMaxDistanceX, TrackAssociatorParameters::muonMaxDistanceY, CSCWireTopology::narrowWidthOfPlane(), CSCChamberSpecs::oddLayerGeometry(), SteppingHelixStateInfo::position(), FreeTrajectoryState::position(), LocalTrajectoryError::positionError(), mathSSE::sqrt(), GeomDet::surface(), GloballyPositioned< T >::toLocal(), TAMuonChamberMatch::tState, Vector3DBase< T, FrameTag >::unit(), CSCWireTopology::wideWidthOfPlane(), Bounds::width(), CSCWireTopology::wireAngle(), CSCLayerGeometry::wireTopology(), PV3DBase< T, PVType, FrameType >::x(), LocalError::xx(), PV3DBase< T, PVType, FrameType >::y(), CSCWireTopology::yOfWire(), and LocalError::yy().

{
   // Strategy:
   //    Propagate through the whole detector, estimate change in eta and phi 
   //    along the trajectory, add this to dRMuon and find DetIds around this 
   //    direction using the map. Then propagate fast to each surface and apply 
   //    final matching criteria.

   // get the direction first
   SteppingHelixStateInfo trajectoryPoint = cachedTrajectory_.getStateAtHcal();
   // If trajectory point at HCAL is not valid, try to use the outer most state of the
   // trajectory instead.
   if(! trajectoryPoint.isValid() ) trajectoryPoint = cachedTrajectory_.getOuterState();
   if(! trajectoryPoint.isValid() ) {
      LogTrace("TrackAssociator") << 
    "trajectory position at HCAL is not valid. Assume the track cannot reach muon detectors and skip it";
      return;
   }

   GlobalVector direction = trajectoryPoint.momentum().unit();
   LogTrace("TrackAssociator") << "muon direction: " << direction << "\n\t and corresponding point: " <<
     trajectoryPoint.position() <<"\n";
   
   DetIdAssociator::MapRange mapRange = getMapRange(cachedTrajectory_.trajectoryDelta(CachedTrajectory::FullTrajectory),
                            parameters.dRMuonPreselection);
     
   // and find chamber DetIds

   std::set<DetId> muonIdsInRegion = 
     muonDetIdAssociator_->getDetIdsCloseToAPoint(trajectoryPoint.position(), mapRange);
   LogTrace("TrackAssociator") << "Number of chambers to check: " << muonIdsInRegion.size();
   for(std::set<DetId>::const_iterator detId = muonIdsInRegion.begin(); detId != muonIdsInRegion.end(); detId++)
   {
      const GeomDet* geomDet = muonDetIdAssociator_->getGeomDet(*detId);
      TrajectoryStateOnSurface stateOnSurface = cachedTrajectory_.propagate( &geomDet->surface() );
      if (! stateOnSurface.isValid()) {
         LogTrace("TrackAssociator") << "Failed to propagate the track; moving on\n\t"<<
       "Element is not crosssed: " << DetIdInfo::info(*detId,0) << "\n";
         continue;
      }
      LocalPoint localPoint = geomDet->surface().toLocal(stateOnSurface.freeState()->position());
      LocalError localError = stateOnSurface.localError().positionError();
      float distanceX = 0;
      float distanceY = 0;
      float sigmaX = 0.0;
      float sigmaY = 0.0;
      if(const CSCChamber* cscChamber = dynamic_cast<const CSCChamber*>(geomDet) ) {
         const CSCChamberSpecs* chamberSpecs = cscChamber->specs();
         if(! chamberSpecs) {
            LogTrace("TrackAssociator") << "Failed to get CSCChamberSpecs from CSCChamber; moving on\n";
            continue;
         }
         const CSCLayerGeometry* layerGeometry = chamberSpecs->oddLayerGeometry(1);
         if(! layerGeometry) {
            LogTrace("TrackAssociator") << "Failed to get CSCLayerGeometry from CSCChamberSpecs; moving on\n";
            continue;
         }
         const CSCWireTopology* wireTopology = layerGeometry->wireTopology();
         if(! wireTopology) {
            LogTrace("TrackAssociator") << "Failed to get CSCWireTopology from CSCLayerGeometry; moving on\n";
            continue;
         }

         float wideWidth      = wireTopology->wideWidthOfPlane();
         float narrowWidth    = wireTopology->narrowWidthOfPlane();
         float length         = wireTopology->lengthOfPlane();
         // If slanted, there is no y offset between local origin and symmetry center of wire plane
         float yOfFirstWire   = fabs(wireTopology->wireAngle())>1.E-06 ? -0.5*length : wireTopology->yOfWire(1);
         // y offset between local origin and symmetry center of wire plane
         float yCOWPOffset    = yOfFirstWire+0.5*length;

         // tangent of the incline angle from inside the trapezoid
         float tangent = (wideWidth-narrowWidth)/(2.*length);
         // y position wrt bottom of trapezoid
         float yPrime  = localPoint.y()+fabs(yOfFirstWire);
         // half trapezoid width at y' is 0.5 * narrowWidth + x side of triangle with the above tangent and side y'
         float halfWidthAtYPrime = 0.5*narrowWidth+yPrime*tangent;
         distanceX = fabs(localPoint.x()) - halfWidthAtYPrime;
         distanceY = fabs(localPoint.y()-yCOWPOffset) - 0.5*length;
     sigmaX = distanceX/sqrt(localError.xx());
         sigmaY = distanceY/sqrt(localError.yy());
      } else {
         distanceX = fabs(localPoint.x()) - geomDet->surface().bounds().width()/2.;
         distanceY = fabs(localPoint.y()) - geomDet->surface().bounds().length()/2.;
     sigmaX = distanceX/sqrt(localError.xx());
         sigmaY = distanceY/sqrt(localError.yy());
      }
      if ( (distanceX < parameters.muonMaxDistanceX && distanceY < parameters.muonMaxDistanceY) ||
       (sigmaX < parameters.muonMaxDistanceSigmaX && sigmaY < parameters.muonMaxDistanceSigmaY) ) {
    LogTrace("TrackAssociator") << "found a match: " << DetIdInfo::info(*detId,0) << "\n";
         TAMuonChamberMatch match;
         match.tState = stateOnSurface;
         match.localDistanceX = distanceX;
         match.localDistanceY = distanceY;
         match.id = *detId;
         matches.push_back(match);
      } else {
    LogTrace("TrackAssociator") << "chamber is too far: " << 
      DetIdInfo::info(*detId,0) << "\n\tdistanceX: " << distanceX << "\t distanceY: " << distanceY <<
      "\t sigmaX: " << sigmaX << "\t sigmaY: " << sigmaY << "\n";
      } 
   }
   
}

math::XYZVector TrackDetectorAssociator::getVector ( const GlobalVector &  vec )

inlineprivate

Definition at line 175 of file TrackDetectorAssociator.h.

     {
    return math::XYZVector(vec.x(),vec.y(),vec.z());
     }

math::XYZVector TrackDetectorAssociator::getVector ( const LocalVector &  vec )

inlineprivate

Definition at line 180 of file TrackDetectorAssociator.h.

     {
    return math::XYZVector(vec.x(),vec.y(),vec.z());
     }

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

private

Definition at line 123 of file TrackDetectorAssociator.cc.

References anyDirection, SteppingHelixPropagator::applyRadX0Correction(), ecalTB2006H4_GenSimDigiReco_cfg::bField, edm::EventSetup::get(), SteppingHelixPropagator::setMaterialMode(), and SteppingHelixPropagator_cfi::SteppingHelixPropagator.

{
   // access the calorimeter geometry
   iSetup.get<CaloGeometryRecord>().get(theCaloGeometry_);
   if (!theCaloGeometry_.isValid()) 
     throw cms::Exception("FatalError") << "Unable to find CaloGeometryRecord in event!\n";
   
   // get the tracking Geometry
   iSetup.get<GlobalTrackingGeometryRecord>().get(theTrackingGeometry_);
   if (!theTrackingGeometry_.isValid()) 
     throw cms::Exception("FatalError") << "Unable to find GlobalTrackingGeometryRecord in event!\n";
   
   if (useDefaultPropagator_ && (! defProp_ || theMagneticFeildWatcher_.check(iSetup) ) ) {
      // setup propagator
      edm::ESHandle<MagneticField> bField;
      iSetup.get<IdealMagneticFieldRecord>().get(bField);
      
      SteppingHelixPropagator* prop  = new SteppingHelixPropagator(&*bField,anyDirection);
      prop->setMaterialMode(false);
      prop->applyRadX0Correction(true);
      // prop->setDebug(true); // tmp
      defProp_ = prop;
      setPropagator(defProp_);
   }

   iSetup.get<DetIdAssociatorRecord>().get("EcalDetIdAssociator", ecalDetIdAssociator_);
   iSetup.get<DetIdAssociatorRecord>().get("HcalDetIdAssociator", hcalDetIdAssociator_);
   iSetup.get<DetIdAssociatorRecord>().get("HODetIdAssociator", hoDetIdAssociator_);
   iSetup.get<DetIdAssociatorRecord>().get("CaloDetIdAssociator", caloDetIdAssociator_);
   iSetup.get<DetIdAssociatorRecord>().get("MuonDetIdAssociator", muonDetIdAssociator_);
   iSetup.get<DetIdAssociatorRecord>().get("PreshowerDetIdAssociator", preshowerDetIdAssociator_);
}

void TrackDetectorAssociator::setPropagator

(

const Propagator *

ptr

)

use a user configured propagator

Definition at line 111 of file TrackDetectorAssociator.cc.

Referenced by muonisolation::JetExtractor::deposit(), muonisolation::CaloExtractorByAssociator::deposits(), and MuonIdProducer::init().

{
   ivProp_ = ptr;
   cachedTrajectory_.setPropagator(ivProp_);
}

void TrackDetectorAssociator::useDefaultPropagator

(

)

use the default propagator

Definition at line 117 of file TrackDetectorAssociator.cc.

Referenced by EopTreeWriter::analyze(), BetaCalculatorECAL::BetaCalculatorECAL(), EcalCosmicsHists::EcalCosmicsHists(), HighPtTrackEcalDetIdProducer::HighPtTrackEcalDetIdProducer(), InterestingTrackEcalDetIdProducer::InterestingTrackEcalDetIdProducer(), IsolatedTracksCone::IsolatedTracksCone(), MuonCaloCleanerAllCrossed::MuonCaloCleanerAllCrossed(), MuonCaloDistanceProducer::MuonCaloDistanceProducer(), MuonDetCleaner::MuonDetCleaner(), cms::MuonMETValueMapProducer::MuonMETValueMapProducer(), ReduceHcalRecHitCollectionProducer::ReduceHcalRecHitCollectionProducer(), and SelectReplacementCandidates::SelectReplacementCandidates().

{
   useDefaultPropagator_ = true;
}

Member Data Documentation

CachedTrajectory TrackDetectorAssociator::cachedTrajectory_

private

Definition at line 187 of file TrackDetectorAssociator.h.

Referenced by getCachedTrajector().

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::caloDetIdAssociator_

private

Definition at line 193 of file TrackDetectorAssociator.h.

Propagator* TrackDetectorAssociator::defProp_

private

Definition at line 186 of file TrackDetectorAssociator.h.

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::ecalDetIdAssociator_

private

Definition at line 190 of file TrackDetectorAssociator.h.

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::hcalDetIdAssociator_

private

Definition at line 191 of file TrackDetectorAssociator.h.

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::hoDetIdAssociator_

private

Definition at line 192 of file TrackDetectorAssociator.h.

const Propagator* TrackDetectorAssociator::ivProp_

private

Definition at line 185 of file TrackDetectorAssociator.h.

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::muonDetIdAssociator_

private

Definition at line 194 of file TrackDetectorAssociator.h.

edm::ESHandle<DetIdAssociator> TrackDetectorAssociator::preshowerDetIdAssociator_

private

Definition at line 195 of file TrackDetectorAssociator.h.

edm::ESHandle<CaloGeometry> TrackDetectorAssociator::theCaloGeometry_

private

Definition at line 197 of file TrackDetectorAssociator.h.

edm::ESWatcher<IdealMagneticFieldRecord> TrackDetectorAssociator::theMagneticFeildWatcher_

private

Definition at line 200 of file TrackDetectorAssociator.h.

edm::ESHandle<GlobalTrackingGeometry> TrackDetectorAssociator::theTrackingGeometry_

private

Definition at line 198 of file TrackDetectorAssociator.h.

bool TrackDetectorAssociator::useDefaultPropagator_

private

Definition at line 188 of file TrackDetectorAssociator.h.