/data/refman/pasoursint/CMSSW_5_2_7_hltpatch2/src/RecoMuon/GlobalTrackingTools/interface/GlobalMuonRefitter.h

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#ifndef RecoMuon_GlobalTrackingTools_GlobalMuonRefitter_H
#define RecoMuon_GlobalTrackingTools_GlobalMuonRefitter_H

#include "DataFormats/Common/interface/Handle.h"

#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "RecoMuon/TrackingTools/interface/MuonTrajectoryBuilder.h"
#include "RecoMuon/TransientTrackingRecHit/interface/MuonTransientTrackingRecHit.h"
#include "TrackingTools/TrackRefitter/interface/TrackTransformer.h"
#include "DataFormats/DTRecHit/interface/DTRecHitCollection.h"
#include "DataFormats/CSCRecHit/interface/CSCSegmentCollection.h"

namespace edm {class Event;}
namespace reco {class TransientTrack;}

class TrajectoryStateOnSurface;

class MuonDetLayerMeasurements;
class MuonServiceProxy;
class Trajectory;

class TrajectoryFitter;

class GlobalMuonRefitter {

  public:

    typedef TransientTrackingRecHit::RecHitContainer RecHitContainer;
    typedef TransientTrackingRecHit::ConstRecHitContainer ConstRecHitContainer;
    typedef TransientTrackingRecHit::RecHitPointer RecHitPointer;
    typedef TransientTrackingRecHit::ConstRecHitPointer ConstRecHitPointer;

    typedef MuonTransientTrackingRecHit::MuonRecHitPointer MuonRecHitPointer;
    typedef MuonTransientTrackingRecHit::ConstMuonRecHitPointer ConstMuonRecHitPointer;
    typedef MuonTransientTrackingRecHit::MuonRecHitContainer MuonRecHitContainer;
    typedef MuonTransientTrackingRecHit::ConstMuonRecHitContainer ConstMuonRecHitContainer;

    typedef std::vector<Trajectory> TC;
    typedef TC::const_iterator TI;

    enum subDetector { PXB = 1, PXF = 2, TIB = 3, TID = 4, TOB = 5, TEC = 6 };

  public:

    GlobalMuonRefitter(const edm::ParameterSet&, const MuonServiceProxy*);
          
    virtual ~GlobalMuonRefitter();

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

    void setServices(const edm::EventSetup&);

    std::vector<Trajectory> refit(const reco::Track& globalTrack, const int theMuonHitsOption) const;

    std::vector<Trajectory> refit(const reco::Track& globalTrack,
                                  const reco::TransientTrack track,
                                  TransientTrackingRecHit::ConstRecHitContainer allRecHitsTemp,
                                  const int theMuonHitsOption) const;

    std::vector<Trajectory> transform(const reco::Track& newTrack,
                                      const reco::TransientTrack track,
                                      TransientTrackingRecHit::ConstRecHitContainer recHitsForReFit) const;
    
    // get rid of selected station RecHits
    ConstRecHitContainer getRidOfSelectStationHits(ConstRecHitContainer hits) const;


  protected:

    enum RefitDirection{insideOut,outsideIn,undetermined};
    
    void checkMuonHits(const reco::Track&, ConstRecHitContainer&, 
                       std::map<DetId, int> &) const;

    void getFirstHits(const reco::Track&, ConstRecHitContainer&, 
                       ConstRecHitContainer&) const;
 
    ConstRecHitContainer selectMuonHits(const Trajectory&, 
                                        const std::map<DetId, int> &) const;
 
    void printHits(const ConstRecHitContainer&) const;

    RefitDirection checkRecHitsOrdering(const ConstRecHitContainer&) const;

    const MuonServiceProxy* service() const { return theService; }

  protected:
    std::string theCategory;
    bool theTkTrajsAvailableFlag;
    float thePtCut;

  private:
  
    int   theMuonHitsOption;
    float theProbCut;
    int   theHitThreshold;
    float theDTChi2Cut;
    float theCSCChi2Cut;
    float theRPCChi2Cut;
    bool  theCosmicFlag;

    edm::InputTag theDTRecHitLabel;
    edm::InputTag theCSCRecHitLabel;
    edm::Handle<DTRecHitCollection>    theDTRecHits;
    edm::Handle<CSCRecHit2DCollection> theCSCRecHits;

    int   theSkipStation;
    int   theTrackerSkipSystem;
    int   theTrackerSkipSection;

    unsigned long long theCacheId_TRH;        

    std::string thePropagatorName;
  
    bool theRPCInTheFit;

    double theRescaleErrorFactor;

    RefitDirection theRefitDirection;

    std::vector<int> theDYTthrs;

    std::string theFitterName;
    edm::ESHandle<TrajectoryFitter> theFitter;
  
    std::string theTrackerRecHitBuilderName;
    edm::ESHandle<TransientTrackingRecHitBuilder> theTrackerRecHitBuilder;
  
    std::string theMuonRecHitBuilderName;
    edm::ESHandle<TransientTrackingRecHitBuilder> theMuonRecHitBuilder;

    const MuonServiceProxy* theService;
    const edm::Event* theEvent;
};
#endif