TrajectorySeedFromMuonProducer Class Reference

Inheritance diagram for TrajectorySeedFromMuonProducer:

List of all members.

Public Member Functions
virtual void	produce (edm::Event &, const edm::EventSetup &)
	TrajectorySeedFromMuonProducer (const edm::ParameterSet &)
Private Attributes
edm::InputTag	muonCollectionTag_
bool	skipMatchedMuons_
edm::InputTag	trackCollectionTag_

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Detailed Description

Definition at line 48 of file TrajectorySeedFromMuonProducer.cc.

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Constructor & Destructor Documentation

TrajectorySeedFromMuonProducer::TrajectorySeedFromMuonProducer

(

const edm::ParameterSet &

iConfig

)

[explicit]

Definition at line 61 of file TrajectorySeedFromMuonProducer.cc.

References edm::ParameterSet::getParameter(), muonCollectionTag_, skipMatchedMuons_, and trackCollectionTag_.

{
  muonCollectionTag_  = iConfig.getParameter<edm::InputTag>("muonCollectionTag");
  trackCollectionTag_ = iConfig.getParameter<edm::InputTag>("trackCollectionTag");
  skipMatchedMuons_   = iConfig.getParameter<bool>("skipMatchedMuons");
  produces<TrajectorySeedCollection>();
}

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Member Function Documentation

void TrajectorySeedFromMuonProducer::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)		[virtual]

Implements edm::EDProducer.

Definition at line 70 of file TrajectorySeedFromMuonProducer.cc.

References DeDxDiscriminatorTools::charge(), TrajectorySeed::direction(), muonid::findOppositeTrack(), edm::EventSetup::get(), edm::Event::getByLabel(), edm::Ref< C, T, F >::isNonnull(), LogTrace, metsig::muon, muonCollectionTag_, oppositeToMomentum, edm::OwnVector< T, P >::push_back(), edm::Event::put(), DetId::rawId(), dt_offlineAnalysis_common_cff::reco, query::result, skipMatchedMuons_, ExpressReco_HICollisions_FallBack::track, and trackCollectionTag_.

{
  using namespace edm;
  using namespace reco;
  using namespace std;

  // Product
  std::auto_ptr<TrajectorySeedCollection> result(new TrajectorySeedCollection());
  
  edm::ESHandle<MagneticField> magneticField;
  iSetup.get<IdealMagneticFieldRecord>().get(magneticField);
  
  edm::ESHandle<TrackerGeometry> trackerGeometry;
  iSetup.get<TrackerDigiGeometryRecord>().get(trackerGeometry);
  
  TrajectoryStateTransform transformer;
  
  edm::Handle<edm::View<Muon> > muonCollectionHandle;
  iEvent.getByLabel(muonCollectionTag_, muonCollectionHandle);
  
  edm::Handle<reco::TrackCollection> trackCollectionHandle;
  iEvent.getByLabel(trackCollectionTag_, trackCollectionHandle);

  // Loop over the muon track
  for (edm::View<Muon>::const_iterator muon = muonCollectionHandle->begin();  muon != muonCollectionHandle->end(); ++muon) {
    // muon must have a tracker track
    if( muon->innerTrack().isNull() ) continue;
    edm::RefToBase<reco::Track> track(muon->innerTrack());
    // check if there is a back-to-back track
    if( skipMatchedMuons_ &&
        muonid::findOppositeTrack(trackCollectionHandle, *track).isNonnull() ) continue;
    if( (!track->innerOk()) || (!track->recHit(0)->isValid())) continue;
    GlobalPoint innerPosition(track->innerPosition().x(), track->innerPosition().y(), track->innerPosition().z());
    GlobalVector innerMomentum(track->innerMomentum().x(), track->innerMomentum().y(), track->innerMomentum().z());
    int charge = track->charge();
    const reco::Track::CovarianceMatrix innerStateCovariance = track->innerStateCovariance();
    DetId innerDetId = DetId(track->innerDetId());
    // Construct the information necessary to make a TrajectoryStateOnSurface
    GlobalTrajectoryParameters globalTrajParams(innerPosition, innerMomentum, charge, &(*magneticField));
    CurvilinearTrajectoryError curviError(innerStateCovariance);
    FreeTrajectoryState tracker_state(globalTrajParams, curviError);
    LogTrace("MuonIdentification") << "Track Inner FTS: "<<tracker_state;
    
    TrajectoryStateOnSurface tracker_tsos  = TrajectoryStateOnSurface(globalTrajParams, curviError, trackerGeometry->idToDet(innerDetId)->surface());
    
    // Make Hits, push back the innermost Hit
    edm::OwnVector<TrackingRecHit> trackHits;
    trackHits.push_back(track->recHit(0)->clone() );
    
    // Make TrajectorySeed
    PTrajectoryStateOnDet *PTraj = transformer.persistentState(tracker_tsos, innerDetId.rawId());
    TrajectorySeed trajectorySeed(*PTraj, trackHits, oppositeToMomentum);
    LogTrace("MuonIdentification")<<"Trajectory Seed Direction: "<< trajectorySeed.direction()<<endl;
    result->push_back(trajectorySeed);
  }
  
  iEvent.put(result);

}

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Member Data Documentation

edm::InputTag TrajectorySeedFromMuonProducer::muonCollectionTag_ [private]

Definition at line 56 of file TrajectorySeedFromMuonProducer.cc.

Referenced by produce(), and TrajectorySeedFromMuonProducer().

bool TrajectorySeedFromMuonProducer::skipMatchedMuons_ [private]

Definition at line 58 of file TrajectorySeedFromMuonProducer.cc.

Referenced by produce(), and TrajectorySeedFromMuonProducer().

edm::InputTag TrajectorySeedFromMuonProducer::trackCollectionTag_ [private]

Definition at line 57 of file TrajectorySeedFromMuonProducer.cc.

Referenced by produce(), and TrajectorySeedFromMuonProducer().