AliMUONVTrackReconstructor.h

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#ifndef ALIMUONVTRACKRECONSTRUCTOR_H
#define ALIMUONVTRACKRECONSTRUCTOR_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

//  Author: Philippe Pillot

#include <TObject.h>

class AliMUONTrack;
class AliMUONTrackParam;
class AliMUONVCluster;
class AliMUONTriggerTrack;
class AliMUONTrackHitPattern;
class AliMUONVClusterServer;
class AliMUONVClusterStore;
class AliMUONVTrackStore;
class AliMUONVTriggerTrackStore;
class AliMUONVTriggerStore;
class AliMUONGeometryTransformer;
class AliMUONDigitMaker;
class AliMUONTriggerCircuit;
class TClonesArray;
class AliMUONRecoParam;
class AliMUONLocalTrigger;

class AliMUONVTrackReconstructor : public TObject {

 public:
  AliMUONVTrackReconstructor(const AliMUONRecoParam* recoParam, AliMUONVClusterServer* clusterServer,
           const AliMUONGeometryTransformer* transformer); // default Constructor
  virtual ~AliMUONVTrackReconstructor(); // Destructor


  void EventReconstruct(AliMUONVClusterStore& clusterStore,
                        AliMUONVTrackStore& trackStore);
  
  void EventReconstructTrigger(const AliMUONTriggerCircuit& triggerCircuit,
                               const AliMUONVTriggerStore& triggerStore,
                               AliMUONVTriggerTrackStore& triggerTrackStore);
  
  void ValidateTracksWithTrigger(AliMUONVTrackStore& trackStore,
                                 const AliMUONVTriggerTrackStore& triggerTrackStore,
                                 const AliMUONVTriggerStore& triggerStore,
                                 const AliMUONTrackHitPattern& trackHitPattern);

  const AliMUONRecoParam* GetRecoParam() const { return fkRecoParam; }
  
  virtual Bool_t RefitTrack(AliMUONTrack &track, Bool_t enableImprovement = kTRUE) = 0;
  
  Bool_t TriggerToTrack(const AliMUONTriggerCircuit& circuit,
      const AliMUONLocalTrigger& locTrg,
      AliMUONTriggerTrack& triggerTrack,
      UChar_t globalTriggerPattern = 0);
  
  
  
 protected:

  TClonesArray *fRecTracksPtr; 
  Int_t fNRecTracks; 

  AliMUONVClusterServer* fClusterServer; 

  const AliMUONRecoParam* fkRecoParam; 
  const AliMUONGeometryTransformer* fkTransformer; 
  
  Double_t* fMaxMCSAngle2; 
  
  // Functions
  AliMUONVTrackReconstructor (const AliMUONVTrackReconstructor& rhs); 
  AliMUONVTrackReconstructor& operator=(const AliMUONVTrackReconstructor& rhs); 
  
  virtual Bool_t MakeTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
  virtual Bool_t MakeMoreTrackCandidates(AliMUONVClusterStore& clusterStore) = 0;
  virtual Bool_t FollowTracks(AliMUONVClusterStore& clusterStore) = 0;
  virtual Bool_t ComplementTracks(const AliMUONVClusterStore& clusterStore) = 0;
  void ImproveTracks();
  virtual void ImproveTrack(AliMUONTrack &track) = 0;
  void Finalize();
  virtual Bool_t FinalizeTrack(AliMUONTrack &track) = 0;
  
  void DiscardMonoCathodClusters();
  void ChangeMonoCathodClusterRes(AliMUONTrack &track);
  
  Bool_t IsAcceptable(AliMUONTrackParam &trackParam);
  
  TClonesArray* MakeSegmentsBetweenChambers(const AliMUONVClusterStore& clusterStore, Int_t ch1, Int_t ch2);

  void RemoveUsedSegments(TClonesArray& segments);
  void RemoveIdenticalTracks();
  void RemoveDoubleTracks();
  void RemoveBadTracks();
  void RemoveConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);
  void TagConnectedTracks(Int_t stMin, Int_t stMax, Bool_t all);

  void AskForNewClustersInStation(const AliMUONTrackParam &trackParam,
          AliMUONVClusterStore& clusterStore, Int_t station);
  void AskForNewClustersInChamber(const AliMUONTrackParam &trackParam,
          AliMUONVClusterStore& clusterStore, Int_t chamber);
  
  Double_t TryOneCluster(const AliMUONTrackParam &trackParam, AliMUONVCluster* cluster,
       AliMUONTrackParam &trackParamAtCluster, Bool_t updatePropagator = kFALSE);
  Bool_t   TryOneClusterFast(const AliMUONTrackParam &trackParam, const AliMUONVCluster* cluster);
  Double_t TryTwoClustersFast(const AliMUONTrackParam &trackParamAtCluster1, AliMUONVCluster* cluster2,
            AliMUONTrackParam &trackParamAtCluster2);

  Bool_t FollowLinearTrackInChamber(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextChamber);
  Bool_t FollowLinearTrackInStation(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextStation);

 private:
  
  // Functions
  void ResetTracks();
  
  
  ClassDef(AliMUONVTrackReconstructor, 0) // MUON track reconstructor in ALICE
};
  
#endif