Inheritance diagram for LowPtGsfElectronSCProducer:

Public Member Functions
	LowPtGsfElectronSCProducer (const edm::ParameterSet &)

void	produce (edm::Event &, const edm::EventSetup &) override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

	EDProducer (const EDProducer &)=delete

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

const EDProducer &	operator= (const EDProducer &)=delete

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &)

Private Member Functions
reco::PFClusterRef	closestCluster (const reco::PFTrajectoryPoint &point, const edm::Handle< reco::PFClusterCollection > &clusters, std::vector< int > &matched)

Private Attributes
const double	dr2_

const edm::EDGetTokenT< reco::PFClusterCollection >	ecalClusters_

const edm::EDGetTokenT< reco::GsfPFRecTrackCollection >	gsfPfRecTracks_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
using	CacheTypes = CacheContexts< T... >

using	GlobalCache = typename CacheTypes::GlobalCache

using	HasAbility = AbilityChecker< T... >

using	InputProcessBlockCache = typename CacheTypes::InputProcessBlockCache

using	LuminosityBlockCache = typename CacheTypes::LuminosityBlockCache

using	LuminosityBlockContext = LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >

using	LuminosityBlockSummaryCache = typename CacheTypes::LuminosityBlockSummaryCache

using	RunCache = typename CacheTypes::RunCache

using	RunContext = RunContextT< RunCache, GlobalCache >

using	RunSummaryCache = typename CacheTypes::RunSummaryCache

Detailed Description

Definition at line 27 of file LowPtGsfElectronSCProducer.cc.

Constructor & Destructor Documentation

◆ LowPtGsfElectronSCProducer()

LowPtGsfElectronSCProducer::LowPtGsfElectronSCProducer ( const edm::ParameterSet & cfg )

explicit

Definition at line 47 of file LowPtGsfElectronSCProducer.cc.

     : gsfPfRecTracks_{consumes<reco::GsfPFRecTrackCollection>(cfg.getParameter<edm::InputTag>("gsfPfRecTracks"))},
       ecalClusters_{consumes<reco::PFClusterCollection>(cfg.getParameter<edm::InputTag>("ecalClusters"))},
       dr2_{cfg.getParameter<double>("MaxDeltaR2")} {
   produces<reco::CaloClusterCollection>();
   produces<reco::SuperClusterCollection>();
   produces<edm::ValueMap<reco::SuperClusterRef> >();
 }

References looper::cfg.

Member Function Documentation

◆ closestCluster()

reco::PFClusterRef LowPtGsfElectronSCProducer::closestCluster	(	const reco::PFTrajectoryPoint &	point,
		const edm::Handle< reco::PFClusterCollection > &	clusters,
		std::vector< int > &	matched
	)

private

Definition at line 223 of file LowPtGsfElectronSCProducer.cc.

                                                                                        {
   reco::PFClusterRef closest;
   if (point.isValid()) {
     float dr2min = dr2_;
     for (size_t ii = 0; ii < clusters->size(); ++ii) {
       if (std::find(matched.begin(), matched.end(), ii) == matched.end()) {
         float dr2 = reco::deltaR2(clusters->at(ii), point.positionREP());
         if (dr2 < dr2min) {
           closest = reco::PFClusterRef(clusters, ii);
           dr2min = dr2;
         }
       }
     }
     if (dr2min < (dr2_ - 1.e-6)) {
       matched.push_back(closest.index());
     }
   }
   return closest;
 }

References bsc_activity_cfg::clusters, reco::deltaR2(), dr2_, MillePedeFileConverter_cfg::e, spr::find(), cuy::ii, edm::Ref< C, T, F >::index(), muonTagProbeFilters_cff::matched, and point.

◆ fillDescriptions()

void LowPtGsfElectronSCProducer::fillDescriptions ( edm::ConfigurationDescriptions & descriptions )

static

Definition at line 247 of file LowPtGsfElectronSCProducer.cc.

                                                                                             {
   edm::ParameterSetDescription desc;
   desc.add<edm::InputTag>("gsfPfRecTracks", edm::InputTag("lowPtGsfElePfGsfTracks"));
   desc.add<edm::InputTag>("ecalClusters", edm::InputTag("particleFlowClusterECAL"));
   desc.add<edm::InputTag>("hcalClusters", edm::InputTag("particleFlowClusterHCAL"));
   desc.add<double>("MaxDeltaR2", 0.5);
   descriptions.add("lowPtGsfElectronSuperClusters", desc);
 }

References edm::ConfigurationDescriptions::add(), submitPVResolutionJobs::desc, and HLT_FULL_cff::InputTag.

◆ produce()

void LowPtGsfElectronSCProducer::produce	(	edm::Event &	event,
		const edm::EventSetup &
	)

override

Definition at line 58 of file LowPtGsfElectronSCProducer.cc.

                                                                               {
   // Input GsfPFRecTracks collection
   auto gsfPfRecTracks = edm::makeValid(event.getHandle(gsfPfRecTracks_));
  
   // Input EcalClusters collection
   reco::PFClusterCollection const& ecalClusters = event.get(ecalClusters_);
  
   // Output SuperClusters collection and getRefBeforePut
   auto superClusters = std::make_unique<reco::SuperClusterCollection>(reco::SuperClusterCollection());
   superClusters->reserve(gsfPfRecTracks->size());
   const reco::SuperClusterRefProd superClustersRefProd = event.getRefBeforePut<reco::SuperClusterCollection>();
  
   // Output ValueMap container of GsfPFRecTrackRef index to SuperClusterRef
   std::vector<reco::SuperClusterRef> superClustersValueMap;
  
   // Output CaloClusters collection
   auto caloClusters = std::make_unique<reco::CaloClusterCollection>(reco::CaloClusterCollection());
   caloClusters->reserve(ecalClusters.size());
  
   // Index[GSF track][trajectory point] for "best" CaloCluster
   std::vector<std::vector<int> > cluster_idx;
   cluster_idx.reserve(gsfPfRecTracks->size());
  
   // Index[GSF track][trajectory point] for "best" PFCluster
   std::vector<std::vector<int> > pfcluster_idx;
   pfcluster_idx.reserve(gsfPfRecTracks->size());
  
   // dr2min[GSF track][trajectory point] for "best" CaloCluster
   std::vector<std::vector<float> > cluster_dr2min;
   cluster_dr2min.reserve(gsfPfRecTracks->size());
  
   // Construct list of trajectory points from the GSF track and electron brems
   std::vector<std::vector<const reco::PFTrajectoryPoint*> > points;
   points.reserve(gsfPfRecTracks->size());
   for (auto const& trk : *gsfPfRecTracks) {
     // Extrapolated track
     std::vector<const reco::PFTrajectoryPoint*> traj;
     traj.reserve(trk.PFRecBrem().size() + 1);
     traj.push_back(&trk.extrapolatedPoint(reco::PFTrajectoryPoint::LayerType::ECALShowerMax));
     // Extrapolated brem trajectories
     for (auto const& brem : trk.PFRecBrem()) {
       traj.push_back(&brem.extrapolatedPoint(reco::PFTrajectoryPoint::LayerType::ECALShowerMax));
     }
     auto size = traj.size();
     points.push_back(std::move(traj));
     // Size containers
     cluster_idx.emplace_back(size, -1);
     pfcluster_idx.emplace_back(size, -1);
     cluster_dr2min.emplace_back(size, 1.e6);
   }
  
   // For each cluster, find closest trajectory point ("global" arbitration at event level)
   for (size_t iclu = 0; iclu < ecalClusters.size(); ++iclu) {  // Cluster loop
     std::pair<int, int> point = std::make_pair(-1, -1);
     float dr2min = 1.e6;
     for (size_t ipoint = 0; ipoint < points.size(); ++ipoint) {            // GSF track loop
       for (size_t jpoint = 0; jpoint < points[ipoint].size(); ++jpoint) {  // Traj point loop
         if (points[ipoint][jpoint]->isValid()) {
           float dr2 = reco::deltaR2(ecalClusters[iclu], points[ipoint][jpoint]->positionREP());
           if (dr2 < dr2min) {
             // Store nearest point to this cluster
             dr2min = dr2;
             point = std::make_pair(ipoint, jpoint);
           }
         }
       }
     }
     if (point.first >= 0 && point.second >= 0 &&               // if this cluster is matched to a point ...
         dr2min < cluster_dr2min[point.first][point.second]) {  // ... and cluster is closest to the same point
       // Copy CaloCluster to new collection
       caloClusters->push_back(ecalClusters[iclu]);
       // Store cluster index for creation of SC later
       cluster_idx[point.first][point.second] = caloClusters->size() - 1;
       pfcluster_idx[point.first][point.second] = iclu;
       cluster_dr2min[point.first][point.second] = dr2min;
     }
   }
  
   // Put CaloClusters in event and get orphan handle
   const edm::OrphanHandle<reco::CaloClusterCollection>& caloClustersH = event.put(std::move(caloClusters));
  
   // Loop through GSF tracks
   for (size_t itrk = 0; itrk < gsfPfRecTracks->size(); ++itrk) {
     // Used to create SC
     float energy = 0.;
     float X = 0., Y = 0., Z = 0.;
     reco::CaloClusterPtr seed;
     reco::CaloClusterPtrVector clusters;
     std::vector<const reco::PFCluster*> barePtrs;
  
     // Find closest match in dr2 from points associated to given track
     int index = -1;
     float dr2 = 1.e6;
     for (size_t ipoint = 0; ipoint < cluster_idx[itrk].size(); ++ipoint) {
       if (cluster_idx[itrk][ipoint] < 0) {
         continue;
       }
       if (cluster_dr2min[itrk][ipoint] < dr2) {
         dr2 = cluster_dr2min[itrk][ipoint];
         index = cluster_idx[itrk][ipoint];
       }
     }
  
     // For each track, loop through points and use associated cluster
     for (size_t ipoint = 0; ipoint < cluster_idx[itrk].size(); ++ipoint) {
       if (cluster_idx[itrk][ipoint] < 0) {
         continue;
       }
       reco::CaloClusterPtr clu(caloClustersH, cluster_idx[itrk][ipoint]);
       if (clu.isNull()) {
         continue;
       }
       if (!(cluster_dr2min[itrk][ipoint] < dr2_ ||  // Require cluster to be closer than dr2_ ...
             index == cluster_idx[itrk][ipoint])) {
         continue;
       }  // ... unless it is the closest one ...
       if (seed.isNull()) {
         seed = clu;
       }
       clusters.push_back(clu);
       energy += clu->correctedEnergy();
       X += clu->position().X() * clu->correctedEnergy();
       Y += clu->position().Y() * clu->correctedEnergy();
       Z += clu->position().Z() * clu->correctedEnergy();
       auto index = pfcluster_idx[itrk][ipoint];
       if (index < static_cast<decltype(index)>(ecalClusters.size())) {
         barePtrs.push_back(&(ecalClusters[index]));
       }
     }
     X /= energy;
     Y /= energy;
     Z /= energy;
  
     // Create SC
     if (seed.isNonnull()) {
       reco::SuperCluster sc(energy, math::XYZPoint(X, Y, Z));
       sc.setCorrectedEnergy(energy);
       sc.setSeed(seed);
       sc.setClusters(clusters);
       PFClusterWidthAlgo pfwidth(barePtrs);
       sc.setEtaWidth(pfwidth.pflowEtaWidth());
       sc.setPhiWidth(pfwidth.pflowPhiWidth());
       sc.rawEnergy();  // Cache the value of raw energy
       superClusters->push_back(sc);
  
       // Populate ValueMap container
       superClustersValueMap.push_back(reco::SuperClusterRef(superClustersRefProd, superClusters->size() - 1));
     } else {
       superClustersValueMap.push_back(reco::SuperClusterRef(superClustersRefProd.id()));
     }
  
   }  // GSF tracks
  
   // Put SuperClusters in event
   event.put(std::move(superClusters));
  
   auto ptr = std::make_unique<edm::ValueMap<reco::SuperClusterRef> >(edm::ValueMap<reco::SuperClusterRef>());
   edm::ValueMap<reco::SuperClusterRef>::Filler filler(*ptr);
   filler.insert(gsfPfRecTracks, superClustersValueMap.begin(), superClustersValueMap.end());
   filler.fill();
   event.put(std::move(ptr));
 }