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TrajectoryStateTransform Class Reference

#include <TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h>

List of all members.

Public Member Functions
FreeTrajectoryState	initialFreeState (const reco::Track &tk, const MagneticField *field) const
	Construct a FreeTrajectoryState from the reco::Track innermost or outermost state, does not require access to tracking geometry.
FreeTrajectoryState	innerFreeState (const reco::Track &tk, const MagneticField *field) const
TrajectoryStateOnSurface	innerStateOnSurface (const reco::Track &tk, const TrackingGeometry &geom, const MagneticField *field) const
	Construct a TrajectoryStateOnSurface from the reco::Track innermost or outermost state, requires access to tracking geometry.
FreeTrajectoryState	outerFreeState (const reco::Track &tk, const MagneticField *field) const
TrajectoryStateOnSurface	outerStateOnSurface (const reco::Track &tk, const TrackingGeometry &geom, const MagneticField *field) const
PTrajectoryStateOnDet *	persistentState (const TrajectoryStateOnSurface &ts, unsigned int detid) const
TrajectoryStateOnSurface	transientState (const PTrajectoryStateOnDet &ts, const Surface *surface, const MagneticField *field) const

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Detailed Description

Definition at line 13 of file TrajectoryStateTransform.h.

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Member Function Documentation

FreeTrajectoryState TrajectoryStateTransform::initialFreeState	(	const reco::Track &	tk,
		const MagneticField *	field
	)			const

Construct a FreeTrajectoryState from the reco::Track innermost or outermost state, does not require access to tracking geometry.

Definition at line 57 of file TrajectoryStateTransform.cc.

References reco::TrackBase::charge(), reco::TrackBase::covariance(), err, reco::TrackBase::momentum(), and reco::TrackBase::vertex().

Referenced by TrackDetectorAssociator::associate(), reco::GsfTransientTrack::GsfTransientTrack(), TSGForRoadSearch::IPfts(), TSGFromPropagation::outerTkState(), MuonErrorMatrixAdjuster::produce(), MuonTrackingRegionBuilder::region(), and reco::TrackTransientTrack::TrackTransientTrack().

{
  Basic3DVector<float> pos( tk.vertex());
  GlobalPoint gpos( pos);
  Basic3DVector<float> mom( tk.momentum());
  GlobalVector gmom( mom);
  GlobalTrajectoryParameters par( gpos, gmom, tk.charge(), field);
  CurvilinearTrajectoryError err( tk.covariance());
  return FreeTrajectoryState( par, err);
}

FreeTrajectoryState TrajectoryStateTransform::innerFreeState	(	const reco::Track &	tk,
		const MagneticField *	field
	)			const

Definition at line 69 of file TrajectoryStateTransform.cc.

References reco::TrackBase::charge(), err, reco::Track::extra(), reco::Track::innerMomentum(), and reco::Track::innerPosition().

Referenced by TrackDetectorAssociator::associate(), innerStateOnSurface(), and EgammaHLTPixelMatchElectronAlgo::process().

{
  Basic3DVector<float> pos( tk.innerPosition());
  GlobalPoint gpos( pos);
  Basic3DVector<float> mom( tk.innerMomentum());
  GlobalVector gmom( mom);
  GlobalTrajectoryParameters par( gpos, gmom, tk.charge(), field);
  CurvilinearTrajectoryError err( tk.extra()->innerStateCovariance());
  return FreeTrajectoryState( par, err);
}

TrajectoryStateOnSurface TrajectoryStateTransform::innerStateOnSurface	(	const reco::Track &	tk,
		const TrackingGeometry &	geom,
		const MagneticField *	field
	)			const

Construct a TrajectoryStateOnSurface from the reco::Track innermost or outermost state, requires access to tracking geometry.

Definition at line 95 of file TrajectoryStateTransform.cc.

References reco::Track::extra(), TrackingGeometry::idToDet(), innerFreeState(), and GeomDet::surface().

Referenced by NuclearTrackCorrector::getInitialState(), GlobalCosmicMuonTrajectoryBuilder::getTransientRecHits(), reco::TrackTransientTrack::innermostMeasurementState(), TSGFromPropagation::innerState(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), GlobalCosmicMuonTrajectoryBuilder::match(), and GlobalCosmicMuonTrajectoryBuilder::trajectories().

{
  const Surface& surface = geom.idToDet( DetId( tk.extra()->innerDetId()))->surface();
  return TrajectoryStateOnSurface( innerFreeState( tk, field), surface);
}

FreeTrajectoryState TrajectoryStateTransform::outerFreeState	(	const reco::Track &	tk,
		const MagneticField *	field
	)			const

Definition at line 82 of file TrajectoryStateTransform.cc.

References reco::TrackBase::charge(), err, reco::Track::extra(), reco::Track::outerMomentum(), and reco::Track::outerPosition().

Referenced by TrackDetectorAssociator::associate(), and outerStateOnSurface().

{
  Basic3DVector<float> pos( tk.outerPosition());
  GlobalPoint gpos( pos);
  Basic3DVector<float> mom( tk.outerMomentum());
  GlobalVector gmom( mom);
  GlobalTrajectoryParameters par( gpos, gmom, tk.charge(), field);
  CurvilinearTrajectoryError err( tk.extra()->outerStateCovariance());
  return FreeTrajectoryState( par, err);
}

TrajectoryStateOnSurface TrajectoryStateTransform::outerStateOnSurface	(	const reco::Track &	tk,
		const TrackingGeometry &	geom,
		const MagneticField *	field
	)			const

Definition at line 103 of file TrajectoryStateTransform.cc.

References reco::Track::extra(), TrackingGeometry::idToDet(), outerFreeState(), and GeomDet::surface().

Referenced by GlobalMuonTrackMatcher::convertToTSOSMuHit(), GlobalMuonTrackMatcher::convertToTSOSTk(), GlobalMuonTrackMatcher::convertToTSOSTkHit(), NuclearTrackCorrector::getInitialState(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), GlobalCosmicMuonTrajectoryBuilder::match(), reco::TrackTransientTrack::outermostMeasurementState(), TrackerOnlyConversionProducer::produce(), and GlobalCosmicMuonTrajectoryBuilder::trajectories().

{
  const Surface& surface = geom.idToDet( DetId( tk.extra()->outerDetId()))->surface();
  return TrajectoryStateOnSurface( outerFreeState( tk, field), surface);
}

PTrajectoryStateOnDet * TrajectoryStateTransform::persistentState	(	const TrajectoryStateOnSurface &	ts,
		unsigned int	detid
	)			const

should check if corresponds to m

Definition at line 13 of file TrajectoryStateTransform.cc.

References i, j, k, TrajectoryStateOnSurface::localError(), TrajectoryStateOnSurface::localParameters(), m, LocalTrajectoryError::matrix(), and TrajectoryStateOnSurface::surfaceSide().

Referenced by SeedFromGenericPairOrTriplet::buildSeed(), ElectronSiStripSeedGenerator::checkHitsAndTSOS(), SeedFromNuclearInteraction::construct(), SeedFromConsecutiveHits::construct(), MuonSeedCreator::createSeed(), TSGFromPropagation::createSeed(), OutInConversionSeedFinder::createSeed(), InOutConversionSeedFinder::createSeed(), RPCSeedHits::createSeed(), MuonSeedFromRecHits::createSeed(), RoadSearchTrackCandidateMakerAlgorithm::createSeedTrajectory(), SeedFromProtoTrack::init(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), ElectronPixelSeedGenerator::prepareElTrackSeed(), ElectronGSPixelSeedGenerator::prepareElTrackSeed(), RoadSearchTrackCandidateMakerAlgorithm::PrepareTrackCandidates(), L2MuonSeedGenerator::produce(), TrackerToMuonPropagator::produce(), ConvBremSeedProducer::produce(), SeedGeneratorForLaserBeams::propagateAnalytical(), SeedGeneratorForLaserBeams::propagateWithMaterial(), TSGForRoadSearch::pushTrajectorySeed(), TrackInfoProducerAlgorithm::run(), SeedFromConsecutiveHits::SeedFromConsecutiveHits(), SeedGeneratorForCRack::seeds(), SimpleCosmicBONSeeder::seeds(), SeedGeneratorForCosmics::seeds(), StandAloneMuonTrajectoryBuilder::trajectories(), and CosmicMuonSeedGenerator::tsosToSeed().

{
  AlgebraicSymMatrix55 m = ts.localError().matrix();
  
  int dim = 5; 

  float localErrors[15];
  int k = 0;
  for (int i=0; i<dim; i++) {
    for (int j=0; j<=i; j++) {
      localErrors[k++] = m(i,j);
    }
  }
  int surfaceSide = static_cast<int>(ts.surfaceSide());

  return new PTrajectoryStateOnDet( ts.localParameters(),
                                    localErrors, detid,
                                    surfaceSide);
}

TrajectoryStateOnSurface TrajectoryStateTransform::transientState	(	const PTrajectoryStateOnDet &	ts,
		const Surface *	surface,
		const MagneticField *	field
	)			const

Definition at line 35 of file TrajectoryStateTransform.cc.

References PTrajectoryStateOnDet::errorMatrix(), i, j, k, m, PTrajectoryStateOnDet::parameters(), and PTrajectoryStateOnDet::surfaceSide().

Referenced by ElectronPixelSeedAnalyzer::analyze(), SiPixelTrackResidualSource::analyze(), TestHits::analyze(), TrackerSeedValidator::analyze(), TestSmoothHits::analyze(), TrackerSeedCleaner::clean(), MuonCkfTrajectoryBuilder::findCompatibleMeasurements(), BaseCkfTrajectoryBuilder::findStateAndLayers(), MuonTrackAnalyzer::getSeedTSOS(), MuonSeedsAnalyzer::getSeedTSOS(), MuonSeedTrack::getSeedTSOS(), MuonRoadTrajectoryBuilder::makeTrajectories_0(), VisTrajectorySeedTwig::onNewEvent(), CtfSpecialSeedGenerator::postCheck(), TrackProducerWithSCAssociation::produce(), StandAloneMuonTrajectoryBuilder::propagateTheSeedTSOS(), DAFTrackProducerAlgorithm::runWithCandidate(), BaseCkfTrajectoryBuilder::seedMeasurements(), MuonSeedBuilder::SeedMomentum(), MuonSeedBuilder::SeedPosition(), StartingLayerFinder::startingLayers(), CRackTrajectoryBuilder::startingTSOS(), CosmicTrajectoryBuilder::startingTSOS(), and SimpleTrackRefitter::startingTSOS().

{
  int dim = 5;
  AlgebraicSymMatrix55 m;
  const std::vector<float> &errs = ts.errorMatrix();  
  int k = 0;
  for (int i=0; i<dim; i++) {
    for (int j=0; j<=i; j++) {
      m(i,j) = errs[k++];       // NOTE: here we do a cast float => double.     
    }
  }
  

  return TrajectoryStateOnSurface( ts.parameters(),
                                   LocalTrajectoryError(m), 
                                   *surface, field,
                                   static_cast<SurfaceSide>(ts.surfaceSide()));

}

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The documentation for this class was generated from the following files:

• TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h
• TrackingTools/TrajectoryState/src/TrajectoryStateTransform.cc

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