class AliTRDtrackerV1 : public AliTracker
{
public:
- enum{
- kMaxLayersPerSector = 1000
- , kMaxTimeBinIndex = 216
- , kTrackingSectors = 18
- , kNTimeBins = 35
- , kNPlanes = 6
- , kNSeedPlanes = 4
- , kMaxTracksStack = 100
- , kNConfigs = 15
- };
- AliTRDtrackerV1();
- virtual ~AliTRDtrackerV1();
+ enum{
+ kMaxLayersPerSector = 1000
+ , kMaxTimeBinIndex = 216
+ , kTrackingSectors = 18
+ , kNTimeBins = 35
+ , kNPlanes = 6
+ , kNSeedPlanes = 4
+ , kMaxTracksStack = 100
+ , kNConfigs = 15
+ };
+ AliTRDtrackerV1();
+ virtual ~AliTRDtrackerV1();
//temporary
AliTRDtrackingSector* GetTrackingSector(Int_t sec) {return &fTrSec[sec];}
- Int_t Clusters2Tracks(AliESDEvent *esd);
+ Int_t Clusters2Tracks(AliESDEvent *esd);
static TTreeSRedirector* DebugStreamer() {return fgDebugStreamer;}
- AliCluster* GetCluster(Int_t index) const;
- static void GetExtrapolationConfig(Int_t iconfig, Int_t planes[2]);
- static const Int_t GetNTimeBins() {return fgNTimeBins;}
- static void GetSeedingConfig(Int_t iconfig, Int_t planes[4]);
- static TLinearFitter *GetTiltedRiemanFitter();
- static TLinearFitter *GetTiltedRiemanFitterConstraint();
- static AliRieman *GetRiemanFitter();
- static void FitRieman(AliTRDcluster **clusters, Double_t chi2[2]);
- static Float_t FitRieman(AliTRDseedV1 *tracklets, Double_t *chi2, Int_t *planes = 0x0);
- static Float_t FitTiltedRiemanConstraint(AliTRDseedV1 *tracklets, Double_t zVertex);
- static Float_t FitTiltedRieman(AliTRDseedV1 *tracklets, Bool_t sigError);
-
- Int_t FollowBackProlongation(AliTRDtrackV1 &t);
- Int_t FollowProlongation(AliTRDtrackV1 &t);
- Int_t LoadClusters(TTree *cTree);
- Int_t PropagateBack(AliESDEvent *event);
- Int_t ReadClusters(TClonesArray* &array, TTree *in) const;
- Int_t RefitInward(AliESDEvent *event);
- void UnloadClusters();
+ AliCluster* GetCluster(Int_t index) const;
+ AliTRDseedV1* GetTracklet(Int_t index) const;
+ AliKalmanTrack* GetTrack(Int_t index) const;
+ TClonesArray* GetListOfClusters() {return fClusters;}
+ TClonesArray* GetListOfTracklets() {return fTracklets;}
+ TClonesArray* GetListOfTracks() {return fTracks;}
+ static const Int_t GetNTimeBins() {return fgNTimeBins;}
+ static void GetExtrapolationConfig(Int_t iconfig, Int_t planes[2]);
+ static void GetSeedingConfig(Int_t iconfig, Int_t planes[4]);
+ static TLinearFitter* GetTiltedRiemanFitter();
+ static TLinearFitter* GetTiltedRiemanFitterConstraint();
+ static AliRieman* GetRiemanFitter();
+ static void FitRieman(AliTRDcluster **clusters, Double_t chi2[2]);
+ static Float_t FitRieman(AliTRDseedV1 *tracklets, Double_t *chi2, Int_t *planes = 0x0);
+ static Float_t FitTiltedRiemanConstraint(AliTRDseedV1 *tracklets, Double_t zVertex);
+ static Float_t FitTiltedRieman(AliTRDseedV1 *tracklets, Bool_t sigError);
+
+ static Double_t FitRiemanTilt(AliTRDtrackV1 *trk, AliTRDseedV1 *tracklets = 0x0, Bool_t err=0, Int_t np = 0, AliTrackPoint *points = 0x0);
+ static Double_t FitLine(AliTRDtrackV1 *trk, AliTRDseedV1 *tracklets = 0x0, Bool_t err=0, Int_t np = 0, AliTrackPoint *points = 0x0);
+ //static Double_t FitKalman(AliTRDtrackV1 *trk, AliTRDseedV1 *tracklets = 0x0, Bool_t up=0, Int_t np = 0, AliTrackPoint *points = 0x0);
+
+ Int_t FollowBackProlongation(AliTRDtrackV1 &t);
+ Int_t FollowProlongation(AliTRDtrackV1 &t);
+ Int_t LoadClusters(TTree *cTree);
+ Int_t PropagateBack(AliESDEvent *event);
+ Int_t ReadClusters(TClonesArray* &array, TTree *in) const;
+ Int_t RefitInward(AliESDEvent *event);
+ static void SetNTimeBins(Int_t nTimeBins){fgNTimeBins = nTimeBins; }
+ void UnloadClusters();
- static Int_t Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down); // to be removed
+ static Int_t Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down); // to be removed
+
+ class AliTRDLeastSquare{
+ public:
+ AliTRDLeastSquare();
+ ~AliTRDLeastSquare(){};
+
+ void AddPoint(Double_t *x, Double_t y, Double_t sigmaY);
+ void RemovePoint(Double_t *x, Double_t y, Double_t sigmaY);
+ void Eval();
+
+ Double_t GetFunctionParameter(Int_t ParNumber) const {return fParams[ParNumber];}
+ Double_t GetFunctionValue(Double_t *xpos) const;
+ void GetCovarianceMatrix(Double_t *storage) const;
+ private:
+ AliTRDLeastSquare(const AliTRDLeastSquare &);
+ AliTRDLeastSquare& operator=(const AliTRDLeastSquare &);
+ Double_t fParams[2]; // Fitparameter
+ Double_t fCovarianceMatrix[3]; // Covariance Matrix
+ Double_t fSums[6]; // Sums
+ };
protected:
- Bool_t AdjustSector(AliTRDtrackV1 *track);
- Double_t BuildSeedingConfigs(AliTRDtrackingChamber **stack, Int_t *configs);
- static Float_t CalculateChi2Z(AliTRDseedV1 *tracklets, Double_t offset, Double_t slope);
- Int_t Clusters2TracksSM(Int_t sector, AliESDEvent *esd);
- Int_t Clusters2TracksStack(AliTRDtrackingChamber **stack, TClonesArray *esdTrackList);
- void CookLabel(AliKalmanTrack *pt, Float_t wrong) const;
- AliTRDseedV1* GetTracklet(AliTRDtrackV1 *trk, Int_t plane, Int_t &idx);
- Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p) const;
- Int_t MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 *sseed, Int_t *ipar);
- AliTRDtrackV1* MakeTrack(AliTRDseedV1 *seeds, Double_t *params);
- Int_t PropagateToX(AliTRDtrackV1 &t, Double_t xToGo, Double_t maxStep);
- Int_t SetTracklet(AliTRDseedV1 *tracklet);
+ static Bool_t AdjustSector(AliTRDtrackV1 *track);
+ Double_t BuildSeedingConfigs(AliTRDtrackingChamber **stack, Int_t *configs);
+ static Float_t CalculateChi2Z(AliTRDseedV1 *tracklets, Double_t offset, Double_t slope, Double_t xref);
+ Int_t Clusters2TracksSM(Int_t sector, AliESDEvent *esd);
+ Int_t Clusters2TracksStack(AliTRDtrackingChamber **stack, TClonesArray *esdTrackList);
+ AliTRDseedV1* GetTracklet(AliTRDtrackV1 *trk, Int_t plane, Int_t &idx);
+ Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p) const;
+ Int_t MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 *sseed, Int_t *ipar);
+ AliTRDtrackV1* MakeTrack(AliTRDseedV1 *seeds, Double_t *params);
+ static Int_t PropagateToX(AliTRDtrackV1 &t, Double_t xToGo, Double_t maxStep);
+ AliTRDtrackV1* SetTrack(AliTRDtrackV1 *track);
+ AliTRDseedV1* SetTracklet(AliTRDseedV1 *tracklet);
private:
AliTRDtrackerV1(const AliTRDtrackerV1 &tracker);
AliTRDtrackerV1 &operator=(const AliTRDtrackerV1 &tracker);
- Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2);
- Double_t CalculateTrackLikelihood(AliTRDseedV1 *tracklets, Double_t *chi2);
- Int_t ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRDseedV1 *tracklet);
+ Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2);
+ Double_t CalculateTrackLikelihood(AliTRDseedV1 *tracklets, Double_t *chi2);
+ Int_t ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRDseedV1 *tracklet);
+ static Float_t CalculateReferenceX(AliTRDseedV1 *tracklets);
+ void ResetSeedTB();
+ Float_t GetChi2Y(AliTRDseedV1 *tracklets) const;
+ Float_t GetChi2Z(AliTRDseedV1 *tracklets) const;
private:
AliTRDgeometry *fGeom; // Pointer to TRD geometry
AliTRDtrackingSector fTrSec[kTrackingSectors]; // Array of tracking sectors;
- TClonesArray *fClusters; // List of clusters
- TClonesArray *fTracklets; // List of tracklets
- TClonesArray *fTracks; // List of tracks
+ TClonesArray *fClusters; // List of clusters
+ TClonesArray *fTracklets; // List of tracklets
+ TClonesArray *fTracks; // List of tracks
// should go to the recoParam
static const Double_t fgkMaxChi2; // Max increment in track chi2
static Double_t fgTopologicQA[kNConfigs]; // Topologic quality
Double_t fTrackQuality[kMaxTracksStack]; // Track quality
Int_t fSeedLayer[kMaxTracksStack]; // Seed layer
+ AliTRDchamberTimeBin *fSeedTB[kNSeedPlanes]; // seeding time bin planes
Int_t fSieveSeeding; //! Seeding iterator
static Int_t fgNTimeBins; // Timebins per plane in track prolongation
static TLinearFitter *fgTiltedRieman; // Fitter for the tilted Rieman fit without vertex constriant
static TLinearFitter *fgTiltedRiemanConstrained; // Fitter for the tilted Rieman fit with vertex constraint
static AliRieman *fgRieman; // Fitter for the untilted Rieman fit
- static TTreeSRedirector *fgDebugStreamer; //!Debug streamer
-
+
+ static TTreeSRedirector *fgDebugStreamer; //!Debug streamer
+
ClassDef(AliTRDtrackerV1, 2) // TRD tracker development class
};
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff