/data/refman/pasoursint/CMSSW_5_3_4/src/RecoTracker/RoadSearchTrackCandidateMaker/interface/RoadSearchTrackCandidateMakerAlgorithm.h

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#ifndef TrackCandidateMakerAlgorithm_h
#define TrackCandidateMakerAlgorithm_h

//
// Package:         RecoTracker/RoadSearchTrackCandidateMaker
// Class:           RoadSearchTrackCandidateMakerAlgorithm
// 
// Description:     Converts cleaned clouds into
//                  TrackCandidates using the 
//                  TrajectoryBuilder framework
//
// Original Author: Oliver Gutsche, gutsche@fnal.gov
// Created:         Wed Mar 15 13:00:00 UTC 2006
//
// $Author: innocent $
// $Date: 2011/12/22 20:38:29 $
// $Revision: 1.23 $
//

#include <string>

#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/Event.h"

#include "DataFormats/Common/interface/OwnVector.h"
#include "DataFormats/RoadSearchCloud/interface/RoadSearchCloudCollection.h"
#include "DataFormats/TrackCandidate/interface/TrackCandidateCollection.h"
#include "RecoTracker/MeasurementDet/interface/MeasurementTracker.h"

#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "TrackingTools/Records/interface/TransientRecHitRecord.h" 
#include "TrackingTools/TransientTrackingRecHit/interface/TransientTrackingRecHit.h"
#include "TrackingTools/TransientTrackingRecHit/interface/TransientTrackingRecHitBuilder.h"
#include "TrackingTools/PatternTools/interface/TrajectoryMeasurement.h"
#include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
#include "TrackingTools/PatternTools/interface/Trajectory.h"

#include "TrackingTools/GeomPropagators/interface/AnalyticalPropagator.h"
#include "TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h"
#include "TrackingTools/TrajectoryCleaning/interface/TrajectoryCleaner.h"
#include "TrackingTools/TrajectoryCleaning/interface/TrajectoryCleanerBySharedHits.h"
#include "TrackingTools/TrackFitters/interface/KFTrajectorySmoother.h"

class TrajectoryStateUpdator;
class MeasurementEstimator;
class PropagatorWithMaterial;
class SteppingHelixPropagator;


class RoadSearchTrackCandidateMakerAlgorithm 
{
 public:
  
  RoadSearchTrackCandidateMakerAlgorithm(const edm::ParameterSet& conf);
  ~RoadSearchTrackCandidateMakerAlgorithm();

  void run(const RoadSearchCloudCollection* input,
           const edm::Event& e,
           const edm::EventSetup& es,
           TrackCandidateCollection &output);

  //  edm::OwnVector<TrackingRecHit> 
  std::vector<TrajectoryMeasurement>  FindBestHitsByDet(const TrajectoryStateOnSurface& tsosBefore,
                      const std::set<const GeomDet*>& theDets,
                      edm::OwnVector<TrackingRecHit>& theHits);


  std::vector<TrajectoryMeasurement>  FindBestHit(const TrajectoryStateOnSurface& tsosBefore,
                                     const std::set<const GeomDet*>& theDets,
                                     edm::OwnVector<TrackingRecHit>& theHits);


  std::vector<TrajectoryMeasurement>  FindBestHits(const TrajectoryStateOnSurface& tsosBefore,
                                     const std::set<const GeomDet*>& theDets,
                                     const SiStripRecHitMatcher* theHitMatcher,
                                     edm::OwnVector<TrackingRecHit>& theHits);

  //  bool chooseStartingLayers( RoadSearchCloud::RecHitVector& recHits, int layer0,
  bool chooseStartingLayers( std::vector<std::pair<const DetLayer*, RoadSearchCloud::RecHitVector > >& RecHitsByLayer,
                             std::vector<std::pair<const DetLayer*, RoadSearchCloud::RecHitVector > >::iterator ilyr0,
                             const std::multimap<int, const DetLayer*>& layer_map,
                             std::set<const DetLayer*>& good_layers,
                             std::vector<const DetLayer*>& middle_layers ,
                             RoadSearchCloud::RecHitVector& recHits_middle);


  FreeTrajectoryState initialTrajectory(const edm::EventSetup& es,
                                        const TrackingRecHit* InnerHit, 
                                        const TrackingRecHit* OuterHit);

  FreeTrajectoryState initialTrajectoryFromTriplet(const edm::EventSetup& es,
                                                   const TrackingRecHit* InnerHit, 
                                                   const TrackingRecHit* MiddleHit, 
                                                   const TrackingRecHit* OuterHit);

  Trajectory createSeedTrajectory(FreeTrajectoryState& fts,
                                  const TrackingRecHit* InnerHit, 
                                  const DetLayer* innerHitLayer);


  std::vector<Trajectory> extrapolateTrajectory(const Trajectory& inputTrajectory,
                                                RoadSearchCloud::RecHitVector& theLayerHits,
                                                const DetLayer* innerHitLayer,
                                                const TrackingRecHit* outerHit,
                                                const DetLayer* outerHitLayer);

  TrackCandidateCollection PrepareTrackCandidates(std::vector<Trajectory>& theTrajectories);

 private:
  edm::ParameterSet conf_;

  unsigned int theNumHitCut;
  double theChi2Cut;
  bool CosmicReco_;
  bool NoFieldCosmic_;
  bool CosmicTrackMerging_;
  int MinChunkLength_;
  int nFoundMin_;

  double initialVertexErrorXY_;
  bool splitMatchedHits_;
  double cosmicSeedPt_;

  double maxPropagationDistance;

  std::string measurementTrackerName_;
  
  bool debug_;
  bool debugCosmics_;
  
  const MeasurementTracker*  theMeasurementTracker;
  const TrackerGeometry* trackerGeom;
  const TransientTrackingRecHitBuilder* ttrhBuilder;
  const MagneticField* magField;
  
  PropagatorWithMaterial* thePropagator;
  PropagatorWithMaterial* theAloPropagator;
  PropagatorWithMaterial* theRevPropagator;
  AnalyticalPropagator*   theAnalyticalPropagator;
  TrajectoryStateUpdator* theUpdator;
  MeasurementEstimator* theEstimator;
  SiStripRecHitMatcher* theHitMatcher;
  KFTrajectorySmoother* theSmoother;

  TrajectoryCleanerBySharedHits* theTrajectoryCleaner;

    bool lstereo[128];
    //int nhits_l[128];


};

#endif