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File indexing completed on 2021-02-14 14:28:10

0001 #ifndef RecoBTag_GhostTrackState_h
0002 #define RecoBTag_GhostTrackState_h
0003 
0004 #include <utility>
0005 
0006 #include "DataFormats/GeometryVector/interface/GlobalPoint.h"
0007 #include "DataFormats/GeometryVector/interface/GlobalVector.h"
0008 #include "DataFormats/GeometryCommonDetAlgo/interface/GlobalError.h"
0009 
0010 #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
0011 
0012 #include "RecoVertex/GhostTrackFitter/interface/BasicGhostTrackState.h"
0013 
0014 class VertexState;
0015 
0016 namespace reco {
0017 
0018   class TransientTrack;
0019   class GhostTrackPrediction;
0020 
0021   class GhostTrackState : public BasicGhostTrackState::Proxy {
0022     typedef BasicGhostTrackState::Proxy Base;
0023 
0024   public:
0025     typedef BasicGhostTrackState::CovarianceMatrix CovarianceMatrix;
0026     typedef BasicGhostTrackState::Vertex Vertex;
0027 
0028     GhostTrackState(const TransientTrack &track);
0029     GhostTrackState(const GlobalPoint &pos, const CovarianceMatrix &cov);
0030     GhostTrackState(const GlobalPoint &pos, const GlobalError &error);
0031     GhostTrackState(const VertexState &state);
0032 
0033     const TransientTrack &track() const;
0034     const TrajectoryStateOnSurface &tsos() const;
0035 
0036     GlobalPoint globalPosition() const { return data().globalPosition(); }
0037     GlobalError cartesianError() const { return data().cartesianError(); }
0038     CovarianceMatrix cartesianCovariance() const { return data().cartesianCovariance(); }
0039 
0040     double lambda() const { return data().lambda(); }
0041     double lambdaError(const GhostTrackPrediction &pred, const GlobalError &pvError = GlobalError()) const;
0042     bool isValid() const { return Base::isValid() && data().isValid(); }
0043     bool isTrack() const;
0044     bool isVertex() const;
0045 
0046     void reset() { unsharedData().reset(); }
0047     bool linearize(const GhostTrackPrediction &pred, bool initial = false, double lambda = 0.) {
0048       return unsharedData().linearize(pred, initial, lambda);
0049     }
0050     bool linearize(const GhostTrackPrediction &pred, double lambda) { return unsharedData().linearize(pred, lambda); }
0051 
0052     double flightDistance(const GlobalPoint &point, const GlobalVector &dir) const;
0053     double axisDistance(const GlobalPoint &point, const GlobalVector &dir) const;
0054     double axisDistance(const GhostTrackPrediction &pred) const;
0055 
0056     Vertex vertexStateOnGhostTrack(const GhostTrackPrediction &pred, bool withMeasurementError = true) const {
0057       return data().vertexStateOnGhostTrack(pred, withMeasurementError);
0058     }
0059     Vertex vertexStateOnMeasurement(const GhostTrackPrediction &pred, bool withGhostTrackError = true) const {
0060       return data().vertexStateOnMeasurement(pred, withGhostTrackError);
0061     }
0062 
0063     double weight() const { return data().weight(); }
0064     void setWeight(double weight) { unsharedData().setWeight(weight); }
0065   };
0066 
0067 }  // namespace reco
0068 
0069 #endif  // RecoBTag_GhostTrackState_h