#include <VertexAssociatorByTracks.h>

Inheritance diagram for VertexAssociatorByTracks:

Public Member Functions
reco::VertexRecoToSimCollection	associateRecoToSim (edm::Handle< edm::View< reco::Vertex > > &, edm::Handle< TrackingVertexCollection > &, const edm::Event &, reco::RecoToSimCollection &) const

reco::VertexSimToRecoCollection	associateSimToReco (edm::Handle< edm::View< reco::Vertex > > &, edm::Handle< TrackingVertexCollection > &, const edm::Event &, reco::SimToRecoCollection &) const

	VertexAssociatorByTracks (const edm::ParameterSet &)

	~VertexAssociatorByTracks ()

Public Member Functions inherited from VertexAssociatorBase
	VertexAssociatorBase ()

virtual	~VertexAssociatorBase ()

Private Attributes
const edm::ParameterSet &	config_

double	R2SMatchedRecoRatio_

double	R2SMatchedSimRatio_

double	S2RMatchedRecoRatio_

double	S2RMatchedSimRatio_

TrackingParticleSelector	selector_

reco::TrackBase::TrackQuality	trackQuality_

Detailed Description

Definition at line 11 of file VertexAssociatorByTracks.h.

Constructor & Destructor Documentation

VertexAssociatorByTracks::VertexAssociatorByTracks ( const edm::ParameterSet & config )

explicit

Definition at line 25 of file VertexAssociatorByTracks.cc.

References edm::ParameterSet::getParameter(), reco::TrackBase::qualityByName(), R2SMatchedRecoRatio_, R2SMatchedSimRatio_, S2RMatchedRecoRatio_, S2RMatchedSimRatio_, selector_, and trackQuality_.

                                                                                   : config_(config)
 {
     R2SMatchedSimRatio_ = config.getParameter<double>("R2SMatchedSimRatio");
     R2SMatchedRecoRatio_ = config.getParameter<double>("R2SMatchedRecoRatio");
     S2RMatchedSimRatio_ = config.getParameter<double>("S2RMatchedSimRatio");
     S2RMatchedRecoRatio_ = config.getParameter<double>("S2RMatchedRecoRatio");
 
     std::string trackQualityType = config.getParameter<std::string>("trackQuality");
     trackQuality_ = reco::TrackBase::qualityByName(trackQualityType);
 
     edm::ParameterSet param = config.getParameter<edm::ParameterSet>("trackingParticleSelector");
 
     selector_ = TrackingParticleSelector(
                     param.getParameter<double>("ptMinTP"),
                     param.getParameter<double>("minRapidityTP"),
                     param.getParameter<double>("maxRapidityTP"),
                     param.getParameter<double>("tipTP"),
                     param.getParameter<double>("lipTP"),
                     param.getParameter<int>("minHitTP"),
                     param.getParameter<bool>("signalOnlyTP"),
                     param.getParameter<bool>("chargedOnlyTP"),
                     param.getParameter<std::vector<int> >("pdgIdTP")
                 );
 }

VertexAssociatorByTracks::~VertexAssociatorByTracks ( )

Definition at line 52 of file VertexAssociatorByTracks.cc.

 {
     //do cleanup here
 }

Member Function Documentation

reco::VertexRecoToSimCollection VertexAssociatorByTracks::associateRecoToSim	(	edm::Handle< edm::View< reco::Vertex > > &	recoVertexes,
		edm::Handle< TrackingVertexCollection > &	trackingVertexes,
		const edm::Event &	event,
		reco::RecoToSimCollection &	associator
	)		const

virtual

Implements VertexAssociatorBase.

Definition at line 58 of file VertexAssociatorByTracks.cc.

References gather_cfg::cout, edm::AssociationMap< Tag >::insert(), Association::map, match(), edm::AssociationMap< Tag >::numberOfAssociations(), R2SMatchedRecoRatio_, R2SMatchedSimRatio_, selector_, edm::AssociationMap< Tag >::size(), trackQuality_, reco::Vertex::tracks_begin(), reco::Vertex::tracks_end(), and reco::Vertex::trackWeight().

 {
     reco::VertexRecoToSimCollection  outputCollection;
 
     std::map<TrackingVertexRef,std::pair<double, std::size_t> > matches;
 
     std::cout << "reco::VertexCollection size = " << recoVertexes->size();
     std::cout << " ; TrackingVertexCollection size = " << trackingVertexes->size() << std::endl << std::endl;
 
     // Loop over RecoVertex
     for (std::size_t recoIndex = 0; recoIndex < recoVertexes->size(); ++recoIndex)
     {
         reco::VertexBaseRef recoVertex(recoVertexes, recoIndex); 
 
         matches.clear();
 
         double recoDaughterWeight = 0.;
 
         // Loop over daughter tracks of RecoVertex
         for (
             reco::Vertex::trackRef_iterator recoDaughter = recoVertex->tracks_begin();
             recoDaughter != recoVertex->tracks_end();
             ++recoDaughter
         )
         {
             // Check the quality of the RecoDoughters
             if ( !(*recoDaughter)->quality(trackQuality_) ) continue;
 
             // Check for association for the given RecoDaughter
             if ( associator.numberOfAssociations(*recoDaughter) > 0 )
             {
                 std::vector<std::pair<TrackingParticleRef,double> > associations = associator[*recoDaughter];
 
                 // Loop over TrackingParticles associated with RecoDaughter
                 for (
                     std::vector<std::pair<TrackingParticleRef,double> >::const_iterator association = associations.begin();
                     association != associations.end();
                     ++association
                 )
                 {
                     // Get a reference to parent vertex of TrackingParticle associated to the RecoDaughter
                     TrackingVertexRef trackingVertex = association->first->parentVertex();
                     // Store matched RecoDaughter to the trackingVertex
                     matches[trackingVertex].first += recoVertex->trackWeight(*recoDaughter);
                     matches[trackingVertex].second++;
                 }
             }
 
             recoDaughterWeight += recoVertex->trackWeight(*recoDaughter);
         } //loop over daughter tracks of RecoVertex
 
         std::size_t assoIndex = 0;
 
         // Loop over map between TrackingVertexes and matched RecoDaugther
         for (
             std::map<TrackingVertexRef,std::pair<double, std::size_t> >::const_iterator match = matches.begin();
             match != matches.end();
             ++match
         )
         {
             // Getting the TrackingVertex information
             TrackingVertexRef trackingVertex = match->first;
             double matchedDaughterWeight = match->second.first;
             std::size_t matchedDaughterCounter = match->second.second;
 
             // Count for only reconstructible SimDaughters           
             std::size_t simDaughterCounter = 0;
 
             for (
                 TrackingVertex::tp_iterator simDaughter = trackingVertex->daughterTracks_begin();
                 simDaughter != trackingVertex->daughterTracks_end();
                 ++simDaughter
             )
                 if ( selector_(**simDaughter) ) simDaughterCounter++;
 
             // Sanity condition in case that reconstructable condition is too tight
             if ( simDaughterCounter < matchedDaughterCounter )
                 simDaughterCounter = matchedDaughterCounter;
 
             // Condition over S2RMatchedSimRatio
             if ( (double)matchedDaughterCounter/simDaughterCounter < R2SMatchedSimRatio_ ) continue;
 
             double quality = (double)matchedDaughterWeight/recoDaughterWeight;
 
             // Condition over R2SMatchedRecoRatio
             if (quality < R2SMatchedRecoRatio_) continue;
 
             outputCollection.insert(recoVertex, std::make_pair(trackingVertex, quality));
 
             std::cout << "R2S: INDEX " << assoIndex;
             std::cout << " ; SimDaughterCounter = " << simDaughterCounter;
             std::cout << " ; RecoDaughterWeight = " << recoDaughterWeight;
             std::cout << " ; MatchedDaughterCounter = " << matchedDaughterCounter;
             std::cout << " ; MatchedDaughterWeight = " << matchedDaughterWeight;
             std::cout << " ; quality = " << quality << std::endl;
 
             assoIndex++;
         }
     } // Loop on RecoVertex
 
     std::cout << std::endl;
     std::cout << "RecoToSim OUTPUT COLLECTION: outputCollection.size() = " << outputCollection.size() << std::endl << std::endl;
 
     return outputCollection;
 }

reco::VertexSimToRecoCollection VertexAssociatorByTracks::associateSimToReco	(	edm::Handle< edm::View< reco::Vertex > > &	recoVertexes,
		edm::Handle< TrackingVertexCollection > &	trackingVertexes,
		const edm::Event &	event,
		reco::SimToRecoCollection &	associator
	)		const

virtual

Implements VertexAssociatorBase.

Definition at line 171 of file VertexAssociatorByTracks.cc.

References gather_cfg::cout, edm::RefToBase< T >::id(), edm::AssociationMap< Tag >::insert(), edm::RefToBase< T >::key(), Association::map, match(), edm::AssociationMap< Tag >::numberOfAssociations(), S2RMatchedRecoRatio_, S2RMatchedSimRatio_, selector_, edm::AssociationMap< Tag >::size(), trackQuality_, reco::Vertex::tracks_begin(), reco::Vertex::tracks_end(), and reco::Vertex::trackWeight().

 {
     reco::VertexSimToRecoCollection  outputCollection;
 
     // Loop over TrackingVertexes
     std::map<std::size_t,std::pair<double, std::size_t> > matches;
 
     // Loop over TrackingVertexes
     for (std::size_t simIndex = 0; simIndex < trackingVertexes->size(); ++simIndex)
     {
         TrackingVertexRef trackingVertex(trackingVertexes, simIndex);
 
         matches.clear();
 
         std::size_t simDaughterCounter = 0;
 
         // Loop over daughter tracks of TrackingVertex
         for (
             TrackingVertex::tp_iterator simDaughter = trackingVertex->daughterTracks_begin();
             simDaughter != trackingVertex->daughterTracks_end();
             ++simDaughter
         )
         {
             // Select only reconstructible SimDaughters
             if ( !selector_(**simDaughter) ) continue;
 
             // Check for association for the given RecoDaughter
             if ( associator.numberOfAssociations(*simDaughter) > 0 )
             {
                 std::vector<std::pair<reco::TrackBaseRef, double> > associations = associator[*simDaughter];
 
                 // Loop over RecoTracks associated with TrackingParticle
                 for (
                     std::vector<std::pair<reco::TrackBaseRef,double> >::const_iterator association = associations.begin();
                     association != associations.end();
                     ++association
                 )
                 {
                     reco::TrackBaseRef recoTrack = association->first;
 
                     for (std::size_t recoIndex = 0; recoIndex < recoVertexes->size(); ++recoIndex)
                     {
                         reco::VertexBaseRef recoVertex(recoVertexes, recoIndex);
 
                         for (
                             reco::Vertex::trackRef_iterator recoDaughter = recoVertex->tracks_begin();
                             recoDaughter != recoVertex->tracks_end();
                             ++recoDaughter
                         )
                         {
                             // Store matched RecoDaughter to the RecoVertex
                             if (
                                 recoDaughter->id() == recoTrack.id() &&
                                 recoDaughter->key() == recoTrack.key()
                             )
                             {
                                 matches[recoIndex].first += recoVertex->trackWeight(*recoDaughter);
                                 matches[recoIndex].second++; 
                             }
                         }
                     }
                 } // loop a recotracks
             }
 
             simDaughterCounter++;
         } // loop a simDaughter
 
         std::size_t assoIndex = 0;
 
         // Loop over map, set score, add to outputCollection
         for (
             std::map<std::size_t,std::pair<double,std::size_t> >::const_iterator match = matches.begin();
             match != matches.end();
             ++match
         )
         {
             // Getting the TrackingVertex information
             reco::VertexBaseRef recoVertex(recoVertexes, match->first);
             double matchedDaughterWeight = match->second.first;
             std::size_t matchedDaughterCounter = match->second.second;
 
             double recoDaughterWeight = 0.;
 
             // Weighted count of those tracks with a given quality of the RecoDoughters
             for (
                 reco::Vertex::trackRef_iterator recoDaughter = recoVertex->tracks_begin();
                 recoDaughter != recoVertex->tracks_end();
                 ++recoDaughter
             )
                 if ( (*recoDaughter)->quality(trackQuality_) ) 
                     recoDaughterWeight += recoVertex->trackWeight(*recoDaughter);
 
             // Sanity condition in case that track quality condition is too tight
             if ( recoDaughterWeight < matchedDaughterWeight )
                 recoDaughterWeight = matchedDaughterWeight;
 
             // Condition over S2RMatchedRecoRatio
             if ( matchedDaughterWeight/recoDaughterWeight < S2RMatchedRecoRatio_ ) continue;
 
             double quality = (double)matchedDaughterCounter/simDaughterCounter;
 
             // Condition over S2RMatchedSimRatio
             if (quality < S2RMatchedSimRatio_) continue;
 
             outputCollection.insert(trackingVertex, std::make_pair(recoVertex, quality));
 
             std::cout << "R2S: INDEX " << assoIndex;
             std::cout << " ; SimDaughterCounter = " << simDaughterCounter;
             std::cout << " ; RecoDaughterWeight = " << recoDaughterWeight;
             std::cout << " ; MatchedDaughterCounter = " << matchedDaughterCounter;
             std::cout << " ; MatchedDaughterWeight = " << matchedDaughterWeight;
             std::cout << " ; quality = " << quality << std::endl;
 
             assoIndex++;
         }
     } // loop over TrackingVertexes
 
     std::cout << "SimToReco OUTPUT COLLECTION: outputCollection.size() = " << outputCollection.size() << std::endl << std::endl;
 
     return outputCollection;
 }