#include <VertexAssociatorByTracks.h>

Inheritance diagram for VertexAssociatorByTracks:

Public Member Functions
reco::VertexRecoToSimCollection	associateRecoToSim (const edm::Handle< edm::View< reco::Vertex >> &vCH, const edm::Handle< TrackingVertexCollection > &tVCH) const override

reco::VertexSimToRecoCollection	associateSimToReco (const edm::Handle< edm::View< reco::Vertex >> &vCH, const edm::Handle< TrackingVertexCollection > &tVCH) const override

	VertexAssociatorByTracks (const edm::EDProductGetter productGetter, double R2SMatchedSimRatio, double R2SMatchedRecoRatio, double S2RMatchedSimRatio, double S2RMatchedRecoRatio, const TrackingParticleSelector selector, reco::TrackBase::TrackQuality trackQuality, const reco::RecoToSimCollection trackRecoToSimAssociation, const reco::SimToRecoCollection trackSimToRecoAssociation)

	~VertexAssociatorByTracks () override

Public Member Functions inherited from reco::VertexToTrackingVertexAssociatorBaseImpl
	VertexToTrackingVertexAssociatorBaseImpl ()
	Constructor. More...

virtual	~VertexToTrackingVertexAssociatorBaseImpl ()
	Destructor. More...

Private Attributes
const edm::EDProductGetter *	productGetter_

const double	R2SMatchedRecoRatio_

const double	R2SMatchedSimRatio_

const double	S2RMatchedRecoRatio_

const double	S2RMatchedSimRatio_

const TrackingParticleSelector *	selector_

const reco::TrackBase::TrackQuality	trackQuality_

const reco::RecoToSimCollection *	trackRecoToSimAssociation_

const reco::SimToRecoCollection *	trackSimToRecoAssociation_

Detailed Description

Definition at line 9 of file VertexAssociatorByTracks.h.

Constructor & Destructor Documentation

◆ VertexAssociatorByTracks()

VertexAssociatorByTracks::VertexAssociatorByTracks	(	const edm::EDProductGetter *	productGetter,
		double	R2SMatchedSimRatio,
		double	R2SMatchedRecoRatio,
		double	S2RMatchedSimRatio,
		double	S2RMatchedRecoRatio,
		const TrackingParticleSelector *	selector,
		reco::TrackBase::TrackQuality	trackQuality,
		const reco::RecoToSimCollection *	trackRecoToSimAssociation,
		const reco::SimToRecoCollection *	trackSimToRecoAssociation
	)

Definition at line 21 of file VertexAssociatorByTracks.cc.

     : productGetter_(productGetter),
       R2SMatchedSimRatio_(R2SMatchedSimRatio),
       R2SMatchedRecoRatio_(R2SMatchedRecoRatio),
       S2RMatchedSimRatio_(S2RMatchedSimRatio),
       S2RMatchedRecoRatio_(S2RMatchedRecoRatio),
       selector_(selector),
       trackQuality_(trackQuality),
       trackRecoToSimAssociation_(trackRecoToSimAssociation),
       trackSimToRecoAssociation_(trackSimToRecoAssociation) {}

◆ ~VertexAssociatorByTracks()

VertexAssociatorByTracks::~VertexAssociatorByTracks ( )

override

Definition at line 41 of file VertexAssociatorByTracks.cc.

41 {}

Member Function Documentation

◆ associateRecoToSim()

reco::VertexRecoToSimCollection VertexAssociatorByTracks::associateRecoToSim	(	const edm::Handle< edm::View< reco::Vertex >> &	vCH,
		const edm::Handle< TrackingVertexCollection > &	tVCH
	)		const

overridevirtual

compare reco to sim the handle of reco::Vertex and TrackingVertex collections

Implements reco::VertexToTrackingVertexAssociatorBaseImpl.

Definition at line 43 of file VertexAssociatorByTracks.cc.

                                                                        {
   reco::VertexRecoToSimCollection outputCollection(productGetter_);
  
   std::map<TrackingVertexRef, std::pair<double, std::size_t>> matches;
  
   LogDebug("VertexAssociation") << "reco::VertexCollection size = " << recoVertexes->size()
                                 << " ; TrackingVertexCollection size = " << trackingVertexes->size() << 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 (trackRecoToSimAssociation_->numberOfAssociations(*recoDaughter) > 0) {
         std::vector<std::pair<TrackingParticleRef, double>> associations = (*trackRecoToSimAssociation_)[*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));
  
       LogTrace("VertexAssociation") << "R2S: INDEX " << assoIndex << " ; SimDaughterCounter = " << simDaughterCounter
                                     << " ; RecoDaughterWeight = " << recoDaughterWeight
                                     << " ; MatchedDaughterCounter = " << matchedDaughterCounter
                                     << " ; MatchedDaughterWeight = " << matchedDaughterWeight
                                     << " ; quality = " << quality;
  
       assoIndex++;
     }
   }  // Loop on RecoVertex
  
   LogTrace("VertexAssociation") << "\nRecoToSim OUTPUT COLLECTION: outputCollection.size() = "
                                 << outputCollection.size() << std::endl;
  
   return outputCollection;
 }

References TrackValidation_cff::association, genericTrackCandidates_cff::associations, edm::AssociationMap< Tag >::insert(), LogDebug, LogTrace, genParticles_cff::map, match(), patCandidatesForDimuonsSequences_cff::matches, edm::AssociationMap< Tag >::numberOfAssociations(), productGetter_, qcdUeDQM_cfi::quality, R2SMatchedRecoRatio_, R2SMatchedSimRatio_, ecalDetailedTimeRecHit_cfi::recoVertex, selector_, edm::AssociationMap< Tag >::size(), trackQuality_, and trackRecoToSimAssociation_.

◆ associateSimToReco()

reco::VertexSimToRecoCollection VertexAssociatorByTracks::associateSimToReco	(	const edm::Handle< edm::View< reco::Vertex >> &	vCH,
		const edm::Handle< TrackingVertexCollection > &	tVCH
	)		const

overridevirtual

compare reco to sim the handle of reco::Vertex and TrackingVertex collections

Implements reco::VertexToTrackingVertexAssociatorBaseImpl.

Definition at line 141 of file VertexAssociatorByTracks.cc.

                                                                        {
   reco::VertexSimToRecoCollection outputCollection(productGetter_);
  
   // 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 (trackSimToRecoAssociation_->numberOfAssociations(*simDaughter) > 0) {
         std::vector<std::pair<reco::TrackBaseRef, double>> associations = (*trackSimToRecoAssociation_)[*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));
  
       LogTrace("VertexAssociation") << "R2S: INDEX " << assoIndex << " ; SimDaughterCounter = " << simDaughterCounter
                                     << " ; RecoDaughterWeight = " << recoDaughterWeight
                                     << " ; MatchedDaughterCounter = " << matchedDaughterCounter
                                     << " ; MatchedDaughterWeight = " << matchedDaughterWeight
                                     << " ; quality = " << quality;
  
       assoIndex++;
     }
   }  // loop over TrackingVertexes
  
   LogTrace("VertexAssociation") << "SimToReco OUTPUT COLLECTION: outputCollection.size() = " << outputCollection.size()
                                 << std::endl;
  
   return outputCollection;
 }