File indexing completed on 2024-04-06 12:29:20
0001 #include "RecoVertex/VertexTools/interface/PerigeeRefittedTrackState.h"
0002 #include "TrackingTools/GeomPropagators/interface/AnalyticalPropagator.h"
0003 #include "DataFormats/TrajectorySeed/interface/PropagationDirection.h"
0004 #include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
0005 #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
0006 #include "TrackingTools/TransientTrack/interface/TransientTrackFromFTSFactory.h"
0007
0008 AlgebraicVector3 PerigeeRefittedTrackState::momentumVector() const { return momentumAtVertex; }
0009
0010 std::vector<PerigeeRefittedTrackState::RefCountedRefittedTrackState> PerigeeRefittedTrackState::components() const {
0011 std::vector<RefCountedRefittedTrackState> result;
0012 result.reserve(1);
0013 result.push_back(RefCountedRefittedTrackState(const_cast<PerigeeRefittedTrackState*>(this)));
0014 return result;
0015 }
0016
0017 PerigeeRefittedTrackState::RefCountedRefittedTrackState PerigeeRefittedTrackState::stateWithNewWeight(
0018 const double newWeight) const {
0019 return RefCountedRefittedTrackState(new PerigeeRefittedTrackState(theState, momentumAtVertex, newWeight));
0020 }
0021
0022 TrajectoryStateOnSurface PerigeeRefittedTrackState::trajectoryStateOnSurface(const Surface& surface) const {
0023 AnalyticalPropagator thePropagator(&(theState.theState().parameters().magneticField()), anyDirection);
0024 TrajectoryStateOnSurface tsos = thePropagator.propagate(freeTrajectoryState(), surface);
0025 return TrajectoryStateOnSurface(weight(), tsos.globalParameters(), tsos.curvilinearError(), surface);
0026 }
0027
0028 TrajectoryStateOnSurface PerigeeRefittedTrackState::trajectoryStateOnSurface(const Surface& surface,
0029 const Propagator& propagator) const {
0030 std::unique_ptr<Propagator> thePropagator(propagator.clone());
0031 thePropagator->setPropagationDirection(anyDirection);
0032
0033 TrajectoryStateOnSurface tsos = thePropagator->propagate(freeTrajectoryState(), surface);
0034 return TrajectoryStateOnSurface(weight(), tsos.globalParameters(), tsos.curvilinearError(), surface);
0035 }
0036
0037 reco::TransientTrack PerigeeRefittedTrackState::transientTrack() const {
0038 TransientTrackFromFTSFactory factory;
0039 return factory.build(freeTrajectoryState());
0040 }
