Public Member Functions
math::XYZPoint	impactPoint (const reco::Track &track) const
	TrackPropagatorToCalo ()
void	update (const edm::EventSetup &eventSetup)
Private Attributes
const MagneticField *	magneticField_
uint32_t	magneticFieldCacheId_
const Propagator *	propagator_
uint32_t	propagatorCacheId_

Detailed Description

Definition at line 41 of file JPTJetAnalyzer.cc.

Constructor & Destructor Documentation

jptJetAnalysis::TrackPropagatorToCalo::TrackPropagatorToCalo ( )

Definition at line 705 of file JPTJetAnalyzer.cc.

    : magneticField_(NULL),
      propagator_(NULL),
      magneticFieldCacheId_(0),
      propagatorCacheId_(0)
    {}

Member Function Documentation

math::XYZPoint jptJetAnalysis::TrackPropagatorToCalo::impactPoint ( const reco::Track & track ) const [inline]

Definition at line 734 of file JPTJetAnalyzer.cc.

References magneticField_, JetTracksAssociationDRCalo::propagateTrackToCalorimeter(), and propagator_.

  {
    return JetTracksAssociationDRCalo::propagateTrackToCalorimeter(track,*magneticField_,*propagator_);
  }

void jptJetAnalysis::TrackPropagatorToCalo::update ( const edm::EventSetup & eventSetup )

Definition at line 712 of file JPTJetAnalyzer.cc.

References edm::eventsetup::EventSetupRecord::cacheIdentifier(), edm::EventSetup::get(), edm::eventsetup::EventSetupRecord::get(), magneticField_, magneticFieldCacheId_, edm::ESHandle< T >::product(), propagator_, and propagatorCacheId_.

  {
    //update magnetic filed if necessary
    const IdealMagneticFieldRecord& magneticFieldRecord = eventSetup.get<IdealMagneticFieldRecord>();
    const uint32_t newMagneticFieldCacheId = magneticFieldRecord.cacheIdentifier();
    if ((newMagneticFieldCacheId != magneticFieldCacheId_) || !magneticField_) {
      edm::ESHandle<MagneticField> magneticFieldHandle;
      magneticFieldRecord.get(magneticFieldHandle);
      magneticField_ = magneticFieldHandle.product();
      magneticFieldCacheId_ = newMagneticFieldCacheId;
    }
    //update propagator if necessary
    const TrackingComponentsRecord& trackingComponentsRecord = eventSetup.get<TrackingComponentsRecord>();
    const uint32_t newPropagatorCacheId = trackingComponentsRecord.cacheIdentifier();
    if ((propagatorCacheId_ != newPropagatorCacheId) || !propagator_) {
      edm::ESHandle<Propagator> propagatorHandle;
      trackingComponentsRecord.get("SteppingHelixPropagatorAlong",propagatorHandle);
      propagator_ = propagatorHandle.product();
      propagatorCacheId_ = newPropagatorCacheId;
    }
  }