/data/refman/pasoursint/CMSSW_5_3_10_patch1/src/RecoMuon/CosmicMuonProducer/interface/CosmicMuonTrajectoryBuilder.h

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#ifndef CosmicMuonTrajectoryBuilder_H
#define CosmicMuonTrajectoryBuilder_H

#include "RecoMuon/TrackingTools/interface/MuonTrajectoryBuilder.h"

#include "RecoMuon/TrackingTools/interface/MuonTrajectoryUpdator.h"
#include "DataFormats/TrajectorySeed/interface/TrajectorySeedCollection.h"
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/Event.h"
#include "TrackingTools/DetLayers/interface/DetLayer.h"
#include "RecoMuon/TrackingTools/interface/MuonServiceProxy.h"
#include "RecoMuon/MeasurementDet/interface/MuonDetLayerMeasurements.h"
#include "RecoMuon/TransientTrackingRecHit/interface/MuonTransientTrackingRecHit.h"
#include "RecoMuon/CosmicMuonProducer/interface/CosmicMuonSmoother.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DataFormats/DTRecHit/interface/DTRecHitCollection.h"
#include "DataFormats/DTRecHit/interface/DTRecSegment4DCollection.h"
#include "DataFormats/CSCRecHit/interface/CSCRecHit2DCollection.h"

namespace edm {class Event; class EventSetup;}

class Trajectory;
class TrajectoryMeasurement;
class CosmicMuonUtilities;
class DirectMuonNavigation;
class MuonBestMeasurementFinder;

typedef MuonTransientTrackingRecHit::MuonRecHitContainer MuonRecHitContainer;
typedef TransientTrackingRecHit::ConstRecHitPointer ConstRecHitPointer;

class CosmicMuonTrajectoryBuilder : public MuonTrajectoryBuilder {

public:

  CosmicMuonTrajectoryBuilder(const edm::ParameterSet&,const MuonServiceProxy* service);

  virtual ~CosmicMuonTrajectoryBuilder();

  std::vector<Trajectory*> trajectories(const TrajectorySeed&);

  virtual CandidateContainer trajectories(const TrackCand&) {
    return CandidateContainer();
  }

  virtual void setEvent(const edm::Event&);

  const Propagator* propagator() const {return &*theService->propagator(thePropagatorName);}

  //FIXME
  const Propagator* propagatorAlong() const {return &*theService->propagator("SteppingHelixPropagatorAlong");}

  const Propagator* propagatorOpposite() const {return &*theService->propagator("SteppingHelixPropagatorOpposite");}

  MuonTrajectoryUpdator* updator() const {return theUpdator;}

  MuonTrajectoryUpdator* backwardUpdator() const {return theBKUpdator;}

  CosmicMuonSmoother* smoother() const {return theSmoother;}

  CosmicMuonUtilities* utilities() const {return smoother()->utilities();}

  DirectMuonNavigation* navigation() const {return theNavigation;}

  MuonBestMeasurementFinder* bestMeasurementFinder() const {return theBestMeasurementFinder;}

  double t0(const DTRecSegment4D* deseg) const;

  PropagationDirection checkDirectionByT0(const DTRecSegment4D*, const DTRecSegment4D*) const;


private:

  MuonTransientTrackingRecHit::MuonRecHitContainer unusedHits(const DetLayer*, const TrajectoryMeasurement&) const;

  void buildSecondHalf(Trajectory&);

  void build(const TrajectoryStateOnSurface&, const NavigationDirection&, Trajectory&);

  TrajectoryStateOnSurface intermediateState(const TrajectoryStateOnSurface&) const;

  void selectHits(MuonTransientTrackingRecHit::MuonRecHitContainer&) const;

  void reverseTrajectory(Trajectory&) const;

  void flipTrajectory(Trajectory&) const;

  void reverseTrajectoryPropagationDirection(Trajectory&) const;

  bool selfDuplicate(const Trajectory&) const;

  void estimateDirection(Trajectory&) const;

  void getDirectionByTime(Trajectory&) const;

  std::vector<TrajectoryMeasurement> findBestMeasurements(const DetLayer*, const TrajectoryStateOnSurface&, const Propagator*, const MeasurementEstimator*);

  void incrementChamberCounters(const DetLayer* layer, int& dtChambers, int& cscChambers, int& rpcChambers, int& totalChambers);

  DirectMuonNavigation* theNavigation;
  edm::ParameterSet theNavigationPSet;

  MuonTrajectoryUpdator* theUpdator;
  MuonTrajectoryUpdator* theBKUpdator;
  MuonDetLayerMeasurements* theLayerMeasurements;

  const MuonServiceProxy* theService;
  CosmicMuonSmoother* theSmoother;

  MuonBestMeasurementFinder* theBestMeasurementFinder;

  std::string thePropagatorName;

  bool theTraversingMuonFlag;
  bool theStrict1LegFlag;

  std::string category_;
  int theNTraversing;
  int theNSuccess;

  unsigned long long theCacheId_DG;
  edm::Handle<CSCRecHit2DCollection> cschits_;
  edm::Handle<DTRecHitCollection> dthits_;
 
};
#endif