JetTracksAssociationXtrpCalo Class Reference

#include <JetTracksAssociationXtrpCalo.h>

Public Types
typedef reco::JetTracksAssociation::Container	Association
typedef edm::RefToBase< reco::Jet >	JetRef
typedef std::vector< JetRef >	JetRefs
typedef std::vector < reco::TrackRef >	TrackRefs

Public Member Functions
void	associateInputTracksToJet (reco::TrackRefVector &associated, const reco::Jet &fJet, std::vector< reco::TrackExtrapolation > const &fExtrapolations, double dR)
	JetTracksAssociationXtrpCalo ()
	Constructor. More...
void	produce (Association *, JetRefs const &, std::vector< reco::TrackExtrapolation > const &, CaloGeometry const &, double dR)
	Associates tracks to jets. More...
	~JetTracksAssociationXtrpCalo ()
	Destructor. More...

Private Member Functions
virtual void	associateTracksToJet (reco::TrackRefVector &, const reco::Jet &, const TrackRefs &)
	Unused. More...

Detailed Description

Definition at line 26 of file JetTracksAssociationXtrpCalo.h.

Member Typedef Documentation

typedef reco::JetTracksAssociation::Container JetTracksAssociationXtrpCalo::Association

Definition at line 28 of file JetTracksAssociationXtrpCalo.h.

typedef edm::RefToBase<reco::Jet> JetTracksAssociationXtrpCalo::JetRef

Definition at line 29 of file JetTracksAssociationXtrpCalo.h.

typedef std::vector<JetRef> JetTracksAssociationXtrpCalo::JetRefs

Definition at line 30 of file JetTracksAssociationXtrpCalo.h.

typedef std::vector<reco::TrackRef> JetTracksAssociationXtrpCalo::TrackRefs

Definition at line 31 of file JetTracksAssociationXtrpCalo.h.

Constructor & Destructor Documentation

JetTracksAssociationXtrpCalo::JetTracksAssociationXtrpCalo

(

)

Constructor.

Definition at line 21 of file JetTracksAssociationXtrpCalo.cc.

{}

JetTracksAssociationXtrpCalo::~JetTracksAssociationXtrpCalo

(

)

Destructor.

Definition at line 26 of file JetTracksAssociationXtrpCalo.cc.

{}

Member Function Documentation

void JetTracksAssociationXtrpCalo::associateInputTracksToJet	(	reco::TrackRefVector &	associated,
		const reco::Jet &	fJet,
		std::vector< reco::TrackExtrapolation > const &	fExtrapolations,
		double	dR
	)

Definition at line 53 of file JetTracksAssociationXtrpCalo.cc.

References reco::CaloJet::detectorP4(), Exception, reco::btau::jetEta, reco::btau::jetPhi, reco::LeafCandidate::phi(), point, and edm::RefVector< C, T, F >::push_back().

Referenced by produce().

{
  reco::CaloJet const * pCaloJet = dynamic_cast<reco::CaloJet const *>(&fJet);
  if ( pCaloJet == 0 ) {
    throw cms::Exception("InvalidInput") << "Expecting calo jets only in JetTracksAssociationXtrpCalo";
  }
  // Loop over CaloTowers
  double jetPhi = pCaloJet->phi();
  double jetEta = pCaloJet->detectorP4().eta();

  // now cache the mapping of (det ID --> track)

//  std::cout<<" New jet "<<jetEta<<" "<<jetPhi<<" Jet ET "<<pCaloJet->et()<<std::endl;

  for ( std::vector<reco::TrackExtrapolation>::const_iterator xtrpBegin = fExtrapolations.begin(),
      xtrpEnd = fExtrapolations.end(), ixtrp = xtrpBegin;
    ixtrp != xtrpEnd; ++ixtrp ) {
    
    if ( ixtrp->positions().size()==0 ) continue;
    reco::TrackBase::Point const & point = ixtrp->positions().at(0);
    
    
    double dr = reco::deltaR<double>( jetEta, jetPhi, point.eta(), point.phi() );
    if ( dr < dR ) {

//    std::cout<<" JetTracksAssociationXtrpCalo::associateInputTracksToJet:: initial track "<<ixtrp->track()->pt()<<" "<<ixtrp->track()->eta()<<
//    " "<<ixtrp->track()->phi()<< " Extrapolated position "<<point.eta()<<" "<<point.phi()<<" Valid? "<<ixtrp->isValid().at(0)<<" Jet eta, phi "<<jetEta<<" "<<jetPhi<<" Jet ET "<<pCaloJet->et()<<
//    " dr "<<dr<<" dR "<<dR<<std::endl;

      reco::TrackRef matchedTrack = ixtrp->track(); 
      associated.push_back( matchedTrack );      
    }
  }


}

virtual void JetTracksAssociationXtrpCalo::associateTracksToJet ( reco::TrackRefVector &  , const reco::Jet &  , const TrackRefs &    )

inlineprivatevirtual

Unused.

Definition at line 56 of file JetTracksAssociationXtrpCalo.h.

                                        {}

void JetTracksAssociationXtrpCalo::produce	(	Association *	fAssociation,
		JetRefs const &	fJets,
		std::vector< reco::TrackExtrapolation > const &	fExtrapolations,
		CaloGeometry const &	fGeo,
		double	dR
	)

Associates tracks to jets.

Definition at line 33 of file JetTracksAssociationXtrpCalo.cc.

References associateInputTracksToJet(), and reco::JetTracksAssociation::setValue().

Referenced by JetTracksAssociatorAtCaloFace::produce().

{
  for ( JetRefs::const_iterator jetsBegin = fJets.begin(),
      jetsEnd = fJets.end(), 
      ijet = jetsBegin;
    ijet != jetsEnd; ++ijet ) {
    reco::TrackRefVector associated;
    associateInputTracksToJet( associated, **ijet, fExtrapolations, dR );
    reco::JetTracksAssociation::setValue( fAssociation, *ijet, associated );
  }
  
  
}