/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/RecoTracker/SiTrackerMRHTools/interface/GroupedDAFHitCollector.h

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#ifndef SiTrackerMRHTools_GroupedDAFHitCollector_h
#define SiTrackerMRHTools_GroupedDAFHitCollector_h
#include "TrackingTools/MeasurementDet/interface/LayerMeasurements.h"
#include "RecoTracker/SiTrackerMRHTools/interface/MultiRecHitCollector.h"
#include <vector>

class Propagator;
class MeasurementEstimator;
class SiTrackerMultiRecHitUpdator;

class GroupedDAFHitCollector :public MultiRecHitCollector {
        public:
        explicit GroupedDAFHitCollector(const MeasurementTracker* measurementTracker,
                                 const SiTrackerMultiRecHitUpdator* updator,
                                 const MeasurementEstimator* est,
                                 const Propagator* propagator,
                                 const Propagator* reversePropagator
                                 ):MultiRecHitCollector(measurementTracker), theLM(measurementTracker), theUpdator(updator), theEstimator(est), thePropagator(propagator), theReversePropagator(reversePropagator){}
                        

        virtual ~GroupedDAFHitCollector(){}

        //given a trajectory it returns a collection
        //of TSiTrackerMultiRecHits and InvalidTransientRecHits.
        //It tryes to build a TSiTrackerMultiRecHit for each detGroup.
        //a detGroup is a group of detectors mutually exclusive for the track's crossing point.
        //To find gouped measurements it uses the LayerMeasurements::groupedMeasurements method 
        
        virtual std::vector<TrajectoryMeasurement> recHits(const Trajectory&) const;

        const SiTrackerMultiRecHitUpdator* getUpdator() const {return theUpdator;}
        const MeasurementEstimator* getEstimator() const {return theEstimator;}
        const Propagator* getPropagator() const {return thePropagator;}
        const Propagator* getReversePropagator() const {return theReversePropagator;}

        private:
        void buildMultiRecHits(const std::vector<TrajectoryMeasurementGroup>& measgroup, std::vector<TrajectoryMeasurement>& result) const;
        
        private:
        LayerMeasurements theLM;
        const SiTrackerMultiRecHitUpdator* theUpdator;
        const MeasurementEstimator* theEstimator;
        const Propagator* thePropagator;
        const Propagator* theReversePropagator;

        

};


#endif