/// \ingroup rec
/// \class AliMUONTrackReconstructor
-/// \brief Class for the MUON track reconstruction
-///
-/////////////////////////////////////
-/// MUON track reconstructor in ALICE
-/////////////////////////////////////
+/// \brief Standard class for the MUON track reconstruction
-#include <TObject.h>
-#include "AliMUONConstants.h"
+#include "AliMUONVTrackReconstructor.h"
-class AliMUONHitForRec;
-class AliMUONSegment;
-class TClonesArray;
-class TFile;
-class TTree;
-class AliMUONData;
-class AliRunLoader;
-class AliLoader;
-class AliMUONTriggerTrack;
-
-class AliMUONTrackReconstructor : public TObject {
+class AliMUONVCluster;
+class AliMUONVClusterStore;
+class AliMUONTrackParam;
+class AliMUONTrack;
+class AliMUONGeometryTransformer;
+class AliMUONTrackReconstructor : public AliMUONVTrackReconstructor
+{
+
public:
- AliMUONTrackReconstructor(AliLoader* loader, AliMUONData* data); // default Constructor
- virtual ~AliMUONTrackReconstructor(void); // Destructor
+
+ AliMUONTrackReconstructor(const AliMUONRecoParam* recoParam, AliMUONVClusterServer* clusterServer,
+ const AliMUONGeometryTransformer* transformer); // default Constructor
+ virtual ~AliMUONTrackReconstructor(); // Destructor
- // Parameters for track reconstruction: public methods
- // Get and Set, Set to defaults
- Double_t GetMinBendingMomentum(void) const {return fMinBendingMomentum;}
- void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
- Double_t GetMaxBendingMomentum(void) const {return fMaxBendingMomentum;}
- void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;}
- Double_t GetMaxChi2(void) const {return fMaxChi2;}
- void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;}
- Double_t GetMaxSigma2Distance(void) const {return fMaxSigma2Distance;}
- void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
- Double_t GetBendingResolution(void) const {return fBendingResolution;}
- void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
- Double_t GetNonBendingResolution(void) const {return fNonBendingResolution;}
- void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
- Double_t GetChamberThicknessInX0(void) const {return fChamberThicknessInX0;}
- void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
- Double_t GetSimpleBValue(void) const {return fSimpleBValue;}
- void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
- Double_t GetSimpleBLength(void) const {return fSimpleBLength;}
- void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
- Double_t GetSimpleBPosition(void) const {return fSimpleBPosition;}
- void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
- Double_t GetEfficiency(void) const {return fEfficiency;}
- void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
- void SetReconstructionParametersToDefaults(void);
+ virtual Bool_t RefitTrack(AliMUONTrack &track, Bool_t enableImprovement = kTRUE);
- // Hits for reconstruction
- Int_t GetNHitsForRec(void) const {return fNHitsForRec;} // Number
- // Reconstructed tracks
- Int_t GetNRecTracks() const {return fNRecTracks;} // Number
- void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;}
- TClonesArray* GetRecTracksPtr(void) const {return fRecTracksPtr;} // Array
-
- // Hits on reconstructed tracks
- Int_t GetNRecTrackHits() const {return fNRecTrackHits;} // Number
- void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;}
- TClonesArray* GetRecTrackHitsPtr(void) const {return fRecTrackHitsPtr;} // Array
+ protected:
// Functions
- Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const;
- Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam) const;
- void EventReconstruct(void);
- void EventReconstructTrigger(void);
- void EventDump(void); // dump reconstructed event
- void EventDumpTrigger(void); // dump reconstructed trigger event
- //PH void FillEvent(); // fill and write tree of reconstructed events
- void SetTrackMethod(Int_t iTrackMethod); //AZ
- Int_t GetTrackMethod(void) const {return fTrackMethod;}
- void FillMUONTrack(void); // set track parameters at hits for Kalman track
- //Int_t fMuons; // AZ - number of muons within acceptance - just for tests
-
- AliMUONData* GetMUONData() {return fMUONData;}
-
- void SetTriggerCircuit(TClonesArray* circuit) {fTriggerCircuit = circuit;}
-
+ virtual Bool_t MakeTrackCandidates(AliMUONVClusterStore& clusterStore);
+ virtual Bool_t MakeMoreTrackCandidates(AliMUONVClusterStore& clusterStore);
+ virtual Bool_t FollowTracks(AliMUONVClusterStore& clusterStore);
+ virtual Bool_t ComplementTracks(const AliMUONVClusterStore& clusterStore);
+ virtual void ImproveTrack(AliMUONTrack &track);
+ virtual Bool_t FinalizeTrack(AliMUONTrack &track);
+
private:
-
- // Constants which should be elsewhere ????
- static const Int_t fgkMaxMuonTrackingChambers = 10; ///< Max number of Muon tracking chambers
- static const Int_t fgkMaxMuonTrackingStations = 5; ///< Max number of Muon tracking stations
-
- // Defaults parameters for reconstruction
- static const Double_t fgkDefaultMinBendingMomentum; ///< default min. bending momentum for reconstruction
- static const Double_t fgkDefaultMaxBendingMomentum; ///< default max. bending momentum for reconstruction
- static const Double_t fgkDefaultMaxChi2; ///< default max. track chi2 for reconstruction
- static const Double_t fgkDefaultMaxSigma2Distance; ///< default square of max. distance for window size
- static const Double_t fgkDefaultBendingResolution; ///< default bending coordinate resolution for reconstruction
- static const Double_t fgkDefaultNonBendingResolution; ///< default non bending coordinate resolution for reconstruction
- static const Double_t fgkDefaultChamberThicknessInX0; ///< default chamber thickness in X0 for reconstruction
- // Simple magnetic field:
- // Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG
- // Length and Position from reco_muon.F, with opposite sign:
- // Length = ZMAGEND-ZCOIL
- // Position = (ZMAGEND+ZCOIL)/2
- // to be ajusted differently from real magnetic field ????
- static const Double_t fgkDefaultSimpleBValue; ///< default value of magnetic field (dipole)
- static const Double_t fgkDefaultSimpleBLength; ///< default length of magnetic field (dipole)
- static const Double_t fgkDefaultSimpleBPosition; ///< default position of magnetic field (dipole)
- static const Double_t fgkDefaultEfficiency; ///< default chamber efficiency for track ref. hits recontruction
-
-
- Int_t fTrackMethod; ///< AZ - tracking method
-
- // Parameters for track reconstruction
- Double_t fMinBendingMomentum; ///< minimum value (GeV/c) of momentum in bending plane
- // Parameters for track reconstruction
- Double_t fMaxBendingMomentum; ///< maximum value (GeV/c) of momentum in bending plane
- Double_t fMaxChi2; ///< maximum Chi2 per degree of Freedom
- Double_t fMaxSigma2Distance; ///< maximum square distance in units of the variance (maximum chi2)
- Double_t fRMin[fgkMaxMuonTrackingChambers]; ///< minimum radius (cm)
- Double_t fRMax[fgkMaxMuonTrackingChambers]; ///< maximum radius (cm)
- Double_t fSegmentMaxDistBending[fgkMaxMuonTrackingStations]; ///< maximum distance (cm) for segments in bending plane
- Double_t fSegmentMaxDistNonBending[fgkMaxMuonTrackingStations]; ///< maximum distance (cm) for segments in non bending plane
- Double_t fBendingResolution; ///< chamber resolution (cm) in bending plane
- Double_t fNonBendingResolution; ///< chamber resolution (cm) in non bending plane
- Double_t fChamberThicknessInX0; ///< chamber thickness in number of radiation lengths
- // how to take it from simulation ????
- Double_t fSimpleBValue; ///< simple magnetic field: value (kG)
- Double_t fSimpleBLength; ///< simple magnetic field: length (cm)
- Double_t fSimpleBPosition; ///< simple magnetic field: Z central position (cm)
- Double_t fEfficiency; ///< chamber efficiency (used for track ref. hits only)
- // Hits for reconstruction (should be in AliMUON ????)
- TClonesArray *fHitsForRecPtr; ///< pointer to the array of hits for reconstruction
- Int_t fNHitsForRec; ///< number of hits for reconstruction
- // Information per chamber (should be in AliMUONChamber ????)
- Int_t fNHitsForRecPerChamber[fgkMaxMuonTrackingChambers]; ///< number of HitsForRec
- Int_t fIndexOfFirstHitForRecPerChamber[fgkMaxMuonTrackingChambers]; ///< index (0...) of first HitForRec
-
- // Segments inside a station
- TClonesArray *fSegmentsPtr[fgkMaxMuonTrackingStations]; ///< array of pointers to the segments for each station
- Int_t fNSegments[fgkMaxMuonTrackingStations]; ///< number of segments for each station
-
- // Reconstructed tracks
- TClonesArray *fRecTracksPtr; ///< pointer to array of reconstructed tracks
- Int_t fNRecTracks; ///< number of reconstructed tracks
-
- // Track hits on reconstructed tracks
- TClonesArray *fRecTrackHitsPtr; ///< pointer to array of hits on reconstructed tracks
- Int_t fNRecTrackHits; ///< number of hits on reconstructed tracks
-
- // data container
- AliMUONData* fMUONData; ///< Data container for MUON subsystem
-
- // alice loader
- AliLoader* fLoader; ///< MUON loader to get data
-
- Int_t fMuons; ///< AZ - number of muons within acceptance - just for tests
-
- AliMUONTriggerTrack* fTriggerTrack; ///< Trigger track structure
-
- TClonesArray* fTriggerCircuit; //!< trigger circuit array
-
- // Functions
- AliMUONTrackReconstructor (const AliMUONTrackReconstructor& rhs); // copy constructor
- AliMUONTrackReconstructor& operator=(const AliMUONTrackReconstructor& rhs); // assignment operator
- void ResetHitsForRec(void);
- void MakeEventToBeReconstructed(void);
- void AddHitsForRecFromRawClusters(TTree* TR);
- void SortHitsForRecWithIncreasingChamber();
- void MakeSegments(void);
- void ResetSegments(void);
- void MakeSegmentsPerStation(Int_t Station);
- void MakeTracks(void);
- Bool_t MakeTriggerTracks(void);
- void ResetTrackHits(void);
- void ResetTracks(void);
- Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
- Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
- void MakeTrackCandidates(void);
- void FollowTracks(void);
- void RemoveDoubleTracks(void);
- void UpdateTrackParamAtHit(void);
- void UpdateHitForRecAtHit(void);
- void ValidateTracksWithTrigger(void);
-
+ /// Not implemented copy constructor
+ AliMUONTrackReconstructor (const AliMUONTrackReconstructor& rhs);
+ /// Not implemented copy assignment operator
+ AliMUONTrackReconstructor& operator=(const AliMUONTrackReconstructor& rhs);
+
+ Bool_t FollowTrackInChamber(AliMUONTrack &trackCandidate, AliMUONVClusterStore& clusterStore, Int_t nextChamber);
+ Bool_t FollowTrackInStation(AliMUONTrack &trackCandidate, AliMUONVClusterStore& clusterStore, Int_t nextStation);
+
+ Double_t TryTwoClusters(const AliMUONTrackParam &trackParamAtCluster, AliMUONVCluster* cluster2, AliMUONTrackParam &trackParamAtCluster2);
- //AZ - for Kalman Filter
- void MakeTrackCandidatesK(void);
- void FollowTracksK(void);
- void RemoveDoubleTracksK(void);
- void GoToVertex(void);
- Bool_t CheckCandidateK(Int_t icand, Int_t nSeeds) const;
+ void UpdateTrack(AliMUONTrack &track, AliMUONTrackParam &trackParamAtCluster);
+ void UpdateTrack(AliMUONTrack &track, AliMUONTrackParam &trackParamAtCluster1, AliMUONTrackParam &trackParamAtCluster2);
+
+ Bool_t RecoverTrack(AliMUONTrack &track, AliMUONVClusterStore& clusterStore, Int_t nextStation);
+
+ void SetVertexErrXY2ForFit(AliMUONTrack &trackCandidate);
+
+ void Fit(AliMUONTrack &track, Bool_t includeMCS, Bool_t fitWithVertex, Bool_t calcCov);
ClassDef(AliMUONTrackReconstructor, 0) // MUON track reconstructor in ALICE
- };
+};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff