File indexing completed on 2024-04-06 11:57:21
0001
0002
0003 #include "Alignment/ReferenceTrajectories/interface/DualBzeroReferenceTrajectory.h"
0004
0005 #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
0006
0007 #include "DataFormats/CLHEP/interface/AlgebraicObjects.h"
0008 #include "DataFormats/TrajectoryState/interface/LocalTrajectoryParameters.h"
0009
0010 #include "Alignment/ReferenceTrajectories/interface/BzeroReferenceTrajectory.h"
0011
0012 DualBzeroReferenceTrajectory::DualBzeroReferenceTrajectory(const TrajectoryStateOnSurface& tsos,
0013 const ConstRecHitContainer& forwardRecHits,
0014 const ConstRecHitContainer& backwardRecHits,
0015 const MagneticField* magField,
0016 const reco::BeamSpot& beamSpot,
0017 const ReferenceTrajectoryBase::Config& config)
0018 : DualReferenceTrajectory(tsos.localParameters().mixedFormatVector().kSize - 1,
0019 numberOfUsedRecHits(forwardRecHits) + numberOfUsedRecHits(backwardRecHits) - 1,
0020 config),
0021 theMomentumEstimate(config.momentumEstimate) {
0022 theValidityFlag = construct(tsos, forwardRecHits, backwardRecHits, magField, beamSpot);
0023 }
0024
0025 ReferenceTrajectory* DualBzeroReferenceTrajectory::construct(const TrajectoryStateOnSurface& referenceTsos,
0026 const ConstRecHitContainer& recHits,
0027 double mass,
0028 MaterialEffects materialEffects,
0029 const PropagationDirection propDir,
0030 const MagneticField* magField,
0031 bool useBeamSpot,
0032 const reco::BeamSpot& beamSpot) const {
0033 if (materialEffects >= breakPoints)
0034 throw cms::Exception("BadConfig") << "[DualBzeroReferenceTrajectory::construct] Wrong MaterialEffects: "
0035 << materialEffects;
0036
0037 ReferenceTrajectoryBase::Config config(materialEffects, propDir, mass, theMomentumEstimate);
0038 config.useBeamSpot = useBeamSpot;
0039 config.hitsAreReverse = false;
0040 return new BzeroReferenceTrajectory(referenceTsos, recHits, magField, beamSpot, config);
0041 }
0042
0043 AlgebraicVector DualBzeroReferenceTrajectory::extractParameters(const TrajectoryStateOnSurface& referenceTsos) const {
0044 AlgebraicVector param = asHepVector<5>(referenceTsos.localParameters().mixedFormatVector());
0045 return param.sub(2, 5);
0046 }
