TrajectoryStateTransform Class Reference

#include <TrajectoryStateTransform.h>

Public Member Functions
FreeTrajectoryState	initialFreeState (const reco::Track &tk, const MagneticField *field) const
FreeTrajectoryState	innerFreeState (const reco::Track &tk, const MagneticField *field) const
TrajectoryStateOnSurface	innerStateOnSurface (const reco::Track &tk, const TrackingGeometry &geom, const MagneticField *field) const
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

Detailed Description

Definition at line 13 of file TrajectoryStateTransform.h.

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(), reco::TrackBase::momentum(), Gflash::par, pos, and reco::TrackBase::vertex().

Referenced by TrackDetectorAssociator::associate(), V0Fitter::fitAll(), reco::GsfTransientTrack::GsfTransientTrack(), TSGForRoadSearch::IPfts(), TSGFromPropagation::outerTkState(), FastTSGFromPropagation::outerTkState(), MuonTrackingRegionBuilder::region(), PropagateToMuon::startingState(), 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(), reco::Track::extra(), reco::Track::innerMomentum(), reco::Track::innerPosition(), Gflash::par, and pos.

Referenced by BetaCalculatorECAL::addInfoToCandidate(), TrackDetectorAssociator::associate(), EgammaHLTPixelMatchElectronAlgo::process(), and PropagateToMuon::startingState().

{
  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(), and GeomDet::surface().

Referenced by TrackerOnlyConversionProducer::checkPhi(), GlobalMuonTrackMatcher::convertToTSOSMuHit(), GlobalMuonTrackMatcher::convertToTSOSTkHit(), MuonShowerInformationFiller::getCompatibleDets(), NuclearTrackCorrector::getInitialState(), GlobalCosmicMuonTrajectoryBuilder::getTransientRecHits(), GlobalTrajectoryBuilderBase::getTransientRecHits(), reco::TrackTransientTrack::innermostMeasurementState(), TSGFromPropagation::innerState(), FastTSGFromPropagation::innerState(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), GlobalCosmicMuonTrajectoryBuilder::match(), TkConvValidator::recalculateMomentumAtFittedVertex(), 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(), reco::Track::extra(), reco::Track::outerMomentum(), reco::Track::outerPosition(), Gflash::par, and pos.

Referenced by TrackDetectorAssociator::associate(), and PropagateToMuon::startingState().

{
  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(), and GeomDet::surface().

Referenced by GlobalMuonTrackMatcher::convertToTSOSMuHit(), GlobalMuonTrackMatcher::convertToTSOSTk(), GlobalMuonTrackMatcher::convertToTSOSTkHit(), MuonShowerInformationFiller::getCompatibleDets(), NuclearTrackCorrector::getInitialState(), TrackerOnlyConversionProducer::getTrackImpactPosition(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), GlobalCosmicMuonTrajectoryBuilder::match(), reco::TrackTransientTrack::outermostMeasurementState(), 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 cond::rpcobgas::detid, i, j, gen::k, TrajectoryStateOnSurface::localError(), TrajectoryStateOnSurface::localParameters(), m, LocalTrajectoryError::matrix(), and TrajectoryStateOnSurface::surfaceSide().

Referenced by SiStripElectronSeedGenerator::altCheckHitsAndTSOS(), SeedFromConsecutiveHitsCreator::buildSeed(), SeedFromGenericPairOrTriplet::buildSeed(), SiStripElectronSeedGenerator::checkHitsAndTSOS(), SeedFromNuclearInteraction::construct(), RPCSeedPattern::createFakeSeed(), MuonSeedFromRecHits::createSeed(), MuonSeedCreator::createSeed(), RPCSeedPattern::createSeed(), OutInConversionSeedFinder::createSeed(), TSGFromPropagation::createSeed(), InOutConversionSeedFinder::createSeed(), FastTSGFromPropagation::createSeed(), RoadSearchTrackCandidateMakerAlgorithm::createSeedTrajectory(), SeedFromProtoTrack::init(), reco::modules::CosmicTrackSplitter::makeCandidate(), reco::modules::TrackerTrackHitFilter::makeCandidate(), SETSeedFinder::makeSeed(), FastElectronSeedGenerator::prepareElTrackSeed(), RoadSearchTrackCandidateMakerAlgorithm::PrepareTrackCandidates(), TrackCandidateProducer::produce(), L2MuonSeedGenerator::produce(), SETMuonSeedProducer::produce(), ConvBremSeedProducer::produce(), TrackerToMuonPropagator::produce(), CSCOverlapsTrackPreparation::produce(), cms::CosmicTrackFinder::produce(), cms::CkfTrackCandidateMakerBase::produceBase(), TSGForRoadSearch::pushTrajectorySeed(), TrackInfoProducerAlgorithm::run(), RoadSearchTrackCandidateMakerAlgorithm::run(), SeedGeneratorForCRack::seeds(), SeedGeneratorForCosmics::seeds(), SimpleCosmicBONSeeder::seeds(), InOutConversionTrackFinder::tracks(), OutInConversionTrackFinder::tracks(), and StandAloneMuonTrajectoryBuilder::trajectories().

{
  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, gen::k, m, PTrajectoryStateOnDet::parameters(), and PTrajectoryStateOnDet::surfaceSide().

Referenced by TrackBuildingAnalyzer::analyze(), HLTMuonDQMSource::analyze(), SiPixelTrackResidualSource::analyze(), TestHits::analyze(), TestSmoothHits::analyze(), TrackerSeedCleaner::clean(), MuonCkfTrajectoryBuilder::findCompatibleMeasurements(), BaseCkfTrajectoryBuilder::findStateAndLayers(), MuonSeedsAnalyzer::getSeedTSOS(), MuonSeedTrack::getSeedTSOS(), MuonTrackAnalyzer::getSeedTSOS(), MuonRoadTrajectoryBuilder::makeTrajectories_0(), CtfSpecialSeedGenerator::postCheck(), TrackProducerWithSCAssociation::produce(), TrackCandidateProducer::produce(), BaseCkfTrajectoryBuilder::seedMeasurements(), MuonSeedCleaner::SeedMomentum(), MuonSeedCleaner::SeedPosition(), SeedTransformer::seedTransientState(), StartingLayerFinder::startingLayers(), SimpleTrackRefitter::startingTSOS(), CosmicTrajectoryBuilder::startingTSOS(), CRackTrajectoryBuilder::startingTSOS(), and FastTSGFromPropagation::trackerSeeds().

{
  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()));

}