TransientTrackFromFTS.h

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#ifndef TrackReco_TransientTrackFromFTS_h
#define TrackReco_TransientTrackFromFTS_h
 
#include "TrackingTools/TransientTrack/interface/BasicTransientTrack.h"
#include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "TrackingTools/PatternTools/interface/TSCPBuilderNoMaterial.h"
 
namespace reco {
 
  class TransientTrackFromFTS : public BasicTransientTrack {
  public:
    TransientTrackFromFTS();
 
    TransientTrackFromFTS(const FreeTrajectoryState& fts);
    TransientTrackFromFTS(const FreeTrajectoryState& fts, const double time, const double dtime);
 
    TransientTrackFromFTS(const FreeTrajectoryState& fts,
                          const edm::ESHandle<GlobalTrackingGeometry>& trackingGeometry);
    TransientTrackFromFTS(const FreeTrajectoryState& fts,
                          const double time,
                          const double dtime,
                          const edm::ESHandle<GlobalTrackingGeometry>& trackingGeometry);
 
    TransientTrackFromFTS(const TransientTrackFromFTS& tt);
 
    TransientTrackFromFTS& operator=(const TransientTrackFromFTS& tt);
 
    void setES(const edm::EventSetup&) override;
 
    void setTrackingGeometry(const edm::ESHandle<GlobalTrackingGeometry>&) override;
 
    void setBeamSpot(const reco::BeamSpot& beamSpot) override;
 
    FreeTrajectoryState initialFreeState() const override { return initialFTS; }
 
    TrajectoryStateOnSurface outermostMeasurementState() const override;
 
    TrajectoryStateOnSurface innermostMeasurementState() const override;
 
    TrajectoryStateClosestToPoint trajectoryStateClosestToPoint(const GlobalPoint& point) const override {
      return builder(initialFTS, point);
    }
 
    TrajectoryStateOnSurface stateOnSurface(const GlobalPoint& point) const override;
 
    TrajectoryStateClosestToPoint impactPointTSCP() const override;
 
    TrajectoryStateOnSurface impactPointState() const override;
 
    bool impactPointStateAvailable() const override { return initialTSOSAvailable; }
 
    TrackCharge charge() const override { return initialFTS.charge(); }
 
    const MagneticField* field() const override { return theField; }
 
    const Track& track() const override;
 
    TrackBaseRef trackBaseRef() const override { return TrackBaseRef(); }
 
    TrajectoryStateClosestToBeamLine stateAtBeamLine() const override;
 
    double timeExt() const override { return (hasTime ? timeExt_ : std::numeric_limits<double>::quiet_NaN()); }
    double dtErrorExt() const override { return (hasTime ? dtErrorExt_ : std::numeric_limits<double>::quiet_NaN()); }
 
  private:
    void calculateTSOSAtVertex() const;
 
    FreeTrajectoryState initialFTS;
    bool hasTime;
    double timeExt_;
    double dtErrorExt_;
    const MagneticField* theField;
    mutable bool initialTSOSAvailable, initialTSCPAvailable, trackAvailable, blStateAvailable;
    mutable TrajectoryStateOnSurface initialTSOS;
    mutable TrajectoryStateClosestToPoint initialTSCP;
    mutable Track theTrack;
    TSCPBuilderNoMaterial builder;
    edm::ESHandle<GlobalTrackingGeometry> theTrackingGeometry;
    reco::BeamSpot theBeamSpot;
    mutable TrajectoryStateClosestToBeamLine trajectoryStateClosestToBeamLine;
  };
 
}  // namespace reco
 
#endif