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00001 #ifndef RecoBTag_TrackGhostTrackState_h 00002 #define RecoBTag_TrackGhostTrackState_h 00003 00004 #include <utility> 00005 00006 #include "DataFormats/GeometryVector/interface/GlobalPoint.h" 00007 #include "DataFormats/GeometryVector/interface/GlobalVector.h" 00008 #include "DataFormats/GeometryCommonDetAlgo/interface/GlobalError.h" 00009 00010 #include "TrackingTools/TransientTrack/interface/TransientTrack.h" 00011 #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h" 00012 00013 #include "RecoVertex/GhostTrackFitter/interface/BasicGhostTrackState.h" 00014 00015 namespace reco { 00016 00017 class GhostTrackPrediction; 00018 00019 class TrackGhostTrackState : public BasicGhostTrackState { 00020 public: 00021 TrackGhostTrackState(const TransientTrack &track) : track_(track) {} 00022 00023 const TransientTrack &track() const { return track_; } 00024 const TrajectoryStateOnSurface &tsos() const { return tsos_; } 00025 00026 bool isValid() const { return tsos_.isValid(); } 00027 00028 GlobalPoint globalPosition() const 00029 { return tsos_.globalPosition(); } 00030 GlobalError cartesianError() const 00031 { return tsos_.cartesianError().position(); } 00032 CovarianceMatrix cartesianCovariance() const 00033 { return tsos_.cartesianError().matrix().Sub<CovarianceMatrix>(0, 0); } 00034 00035 void reset() { tsos_ = TrajectoryStateOnSurface(); } 00036 bool linearize(const GhostTrackPrediction &pred, 00037 bool initial, double lambda); 00038 bool linearize(const GhostTrackPrediction &pred, double lambda); 00039 00040 Vertex vertexStateOnGhostTrack(const GhostTrackPrediction &pred, 00041 bool withMeasurementError) const; 00042 Vertex vertexStateOnMeasurement(const GhostTrackPrediction &pred, 00043 bool withGhostTrackError) const; 00044 00045 private: 00046 BasicGhostTrackState *clone() const 00047 { return new TrackGhostTrackState(*this); } 00048 00049 TrajectoryStateOnSurface tsos_; 00050 TransientTrack track_; 00051 }; 00052 00053 } 00054 00055 #endif // RecoBTag_TrackGhostTrackState_h
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