JetTracksAssociationXtrpCalo Class Reference

#include <JetTracksAssociationXtrpCalo.h>

Inheritance diagram for JetTracksAssociationXtrpCalo:

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...
Public Member Functions inherited from JetTracksAssociationDR
void	associateTracksToJets (Association *, const JetRefs &, const TrackRefs &)
	JetTracksAssociationDR (double dr_threshold)
	Constructor taking dR threshold as argument. More...
virtual	~JetTracksAssociationDR ()
	Destructor. More...

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

Additional Inherited Members
Public Types inherited from JetTracksAssociationDR
typedef reco::JetTracksAssociation::Container	Association
	Container for jet-track associations. More...
typedef edm::RefToBase< reco::Jet >	JetRef
typedef std::vector< JetRef >	JetRefs
typedef edm::Handle< edm::View < reco::Jet > >	Jets
	Handle to jet collection. More...
typedef reco::TrackBase::TrackQuality	TrackQuality
typedef std::vector < reco::TrackRef >	TrackRefs
typedef edm::Handle < reco::TrackCollection >	Tracks
	Handle to track collection. More...
Static Public Member Functions inherited from JetTracksAssociationDR
static void	createJetRefs (JetRefs &, const Jets &)
static void	createTrackRefs (TrackRefs &, const Tracks &, const TrackQuality &)
Protected Member Functions inherited from JetTracksAssociationDR
	JetTracksAssociationDR ()
	Private default constructor. More...
Protected Attributes inherited from JetTracksAssociationDR
double	mDeltaR2Threshold
	Threshold used to associate tracks to jets. More...

Detailed Description

Definition at line 28 of file JetTracksAssociationXtrpCalo.h.

Constructor & Destructor Documentation

JetTracksAssociationXtrpCalo::JetTracksAssociationXtrpCalo

(

)

Constructor.

Definition at line 22 of file JetTracksAssociationXtrpCalo.cc.

{}

JetTracksAssociationXtrpCalo::~JetTracksAssociationXtrpCalo

(

)

Destructor.

Definition at line 27 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 54 of file JetTracksAssociationXtrpCalo.cc.

References reco::CaloJet::detectorP4(), edm::hlt::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 ) {
//  
// Do nothing with invalid propagation  
//
    if( ixtrp->isValid().at(0) == 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.

Implements JetTracksAssociationDR.

Definition at line 55 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 34 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 );
  }
  
  
}