KalmanVertexFit/interface/KalmanTrackToTrackCovCalculator.h

0001 #ifndef KalmanTrackToTrackCovCalculator_H
0002 #define KalmanTrackToTrackCovCalculator_H
0003
0004 #include "RecoVertex/VertexPrimitives/interface/TrackToTrackCovCalculator.h"
0005 #include "RecoVertex/VertexPrimitives/interface/CachingVertex.h"
0006
0007 /**
0008    * Calculates all the track-to-track covariance matrices using the Kalman
0009    * filter algorithms after the vertex has been fit and the tracks refit.
0010    */
0011
0012 template <unsigned int N>
0013 class KalmanTrackToTrackCovCalculator : public TrackToTrackCovCalculator<N> {
0014 public:
0015   typedef typename CachingVertex<N>::RefCountedVertexTrack RefCountedVertexTrack;
0016
0017   KalmanTrackToTrackCovCalculator() {}
0018
0019   /**
0020    * Calculates all the track-to-track covariance matrices
0021    * \param vertex The vertex whose track-to-track covariance matrices have
0022    *    to be calculated.
0023    * \return The map containing the covariance matrices.
0024    */
0025
0026   typename CachingVertex<N>::TrackToTrackMap operator()(const CachingVertex<N>& vertex) const override;
0027
0028   KalmanTrackToTrackCovCalculator* clone() const override { return new KalmanTrackToTrackCovCalculator(*this); }
0029 };
0030
0031 #endif