X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TRD%2FAliTRDtrackerV1.h;h=c76a36a2b5010ab2089d9b3ea16922289bcd45bf;hb=6350d0c03d9aed9b63ea3a0ef57f3aa3252efced;hp=26cb1ce02f86d891b0b6a450bf6951a48887ee3c;hpb=bccda319e1502ef207681dcfcb2999522f58c5c3;p=u%2Fmrichter%2FAliRoot.git diff --git a/TRD/AliTRDtrackerV1.h b/TRD/AliTRDtrackerV1.h index 26cb1ce02f8..c76a36a2b50 100644 --- a/TRD/AliTRDtrackerV1.h +++ b/TRD/AliTRDtrackerV1.h @@ -1,8 +1,8 @@ #ifndef ALITRDTRACKERV1_H #define ALITRDTRACKERV1_H -/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * - * See cxx source for full Copyright notice */ +/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * +* See cxx source for full Copyright notice */ /* $Id$ */ //////////////////////////////////////////////////////////////////////////// @@ -10,94 +10,232 @@ // The TRD tracker // // // // Authors: // +// Marian Ivanov // // Alex Bercuci // +// Jouri Belikov // // Markus Fasel // // // -///////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////// -#ifndef ALITRDTRACKER_H -#include "AliTRDtracker.h" -#endif +//#ifndef ALITRACKER_H +#include "AliTracker.h" +//#endif + +//#ifndef ALITRDTRACKINGSECTOR_H +#include "AliTRDtrackingSector.h" +//#endif -#define DEBUG +//#ifndef ROOT_TMatrixDfwd +#include +//#endif /************************************************************************** - * Class Status see source file * - **************************************************************************/ - +* Class Status see source file * +**************************************************************************/ + class TFile; class TTreeSRedirector; class TClonesArray; +class TLinearFitter; class AliRieman; class AliESDEvent; +class AliCluster; +class AliTrackPoint; +class AliTRDcluster; class AliTRDseedV1; -class AliTRDstackLayer; +class AliTRDtrackingChamber; +class AliTRDchamberTimeBin; class AliTRDtrackerFitter; -class AliTRDrecoParam; class AliTRDtrackV1; -class AliTrackPoint; -class AliTRDtrackerV1 : public AliTRDtracker +class AliTRDReconstructor; +class AliTRDrecoParam; +class AliTRDtrackerV1 : public AliTracker { +public: + enum{ + kOwner = BIT(14) // owner of clusters + ,kRemoveContainers = BIT(15) // delete containers after usage + }; + enum ETRDtrackerV1const { + kMaxLayersPerSector = 1000 + , kMaxTimeBinIndex = 216 + , kTrackingSectors = 18 + , kNTimeBins = 35 + , kNPlanes = 6 + , kNSeedPlanes = 4 + , kMaxTracksStack = 100 + , kNConfigs = 15 + }; + enum ETRDtrackerV1BetheBloch { + kGeant = 0 + ,kSolid + ,kGas + }; + AliTRDtrackerV1(AliTRDReconstructor *rec = NULL); + virtual ~AliTRDtrackerV1(); + + //temporary + AliTRDtrackingSector* GetTrackingSector(Int_t sec) {return &fTrSec[sec];} + + Int_t Clusters2Tracks(AliESDEvent *esd); + static ETRDtrackerV1BetheBloch + GetBetheBloch() { return fgBB;} + AliCluster* GetCluster(Int_t index) const; + AliTRDseedV1* GetTracklet(Int_t index) const; + AliKalmanTrack* GetTrack(Int_t index) const; + TClonesArray* GetListOfClusters() const { return fClusters;} + TClonesArray* GetListOfTracklets() const { return fTracklets;} + TClonesArray* GetListOfTracks() const { return fTracks;} + static 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]); - public: - enum{ - kNTimeBins = 35, - kNPlanes = 6, - kNSeedPlanes = 4, - kMaxTracksStack = 100, - kNConfigs = 15 - }; - AliTRDtrackerV1(AliTRDrecoParam *p = 0x0); - AliTRDtrackerV1(const TFile *in, AliTRDrecoParam *p); - virtual ~AliTRDtrackerV1(); + 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 *const planes = NULL); + static Float_t FitTiltedRiemanConstraint(AliTRDseedV1 *tracklets, Double_t zVertex); + static Float_t FitTiltedRieman(AliTRDseedV1 *tracklets, Bool_t sigError); + static Double_t FitTiltedRiemanV1(AliTRDseedV1 *tracklets); - Int_t Clusters2Tracks(AliESDEvent *esd); - static void GetExtrapolationConfig(Int_t iconfig, Int_t planes[2]); - static void GetSeedingConfig(Int_t iconfig, Int_t planes[4]); - Int_t FollowBackProlongation(AliTRDtrackV1 &t); - Int_t FollowProlongation(AliTRDtrackV1 &t); - Int_t PropagateBack(AliESDEvent *event); - Int_t RefitInward(AliESDEvent *event); - void SetRecoParam(AliTRDrecoParam *p){fRecoParam = p;} - void UnloadClusters(); - - protected: - Double_t BuildSeedingConfigs(AliTRDstackLayer *layer, Int_t *configs); - Int_t Clusters2TracksSM( AliTRDtracker::AliTRDtrackingSector *sector, AliESDEvent *esd); - Int_t Clusters2TracksStack(AliTRDstackLayer *layer, TClonesArray *esdTrackList); - void CookLabel(AliKalmanTrack *pt, Float_t wrong) const; - Int_t GetSeedingLayers(AliTRDstackLayer *layers, Double_t *params); - void GetMeanCLStack(AliTRDstackLayer *layers, Int_t *planes, Double_t *params); - AliTRDseedV1* GetTracklet(AliTRDtrackV1 *trk, Int_t plane, Int_t &idx); - virtual Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p) const; - AliTRDcluster *FindSeedingCluster(AliTRDstackLayer *layers, AliTRDseedV1/*AliRieman*/ *sfit); - - Double_t MakeSeedingPlanes(AliTRDstackLayer *layer); - AliTRDstackLayer *MakeSeedingLayer(AliTRDstackLayer *layers, Int_t Plane); - Int_t MakeSeeds(AliTRDstackLayer *layers, 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 Double_t FitRiemanTilt(const AliTRDtrackV1 *trk, AliTRDseedV1 *tracklets = NULL, Bool_t err=0, Int_t np = 0, AliTrackPoint *points = NULL); + static Double_t FitLine(const AliTRDtrackV1 *trk, AliTRDseedV1 *tracklets = NULL, Bool_t err=0, Int_t np = 0, AliTrackPoint *points = NULL); + static Double_t FitKalman(AliTRDtrackV1 *trk, AliTRDseedV1 * const tracklets = NULL, Bool_t up=0, Int_t np = 0, AliTrackPoint *points = NULL); -private: - AliTRDtrackerV1(const AliTRDtrackerV1 &tracker); - AliTRDtrackerV1 &operator=(const AliTRDtrackerV1 &tracker); - Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4], Double_t *chi2); - void ImproveSeedQuality(AliTRDstackLayer *layer, AliTRDseedV1 *cseed); + Bool_t IsClustersOwner() const { return TestBit(kOwner);} + Bool_t HasRemoveContainers() const { return TestBit(kRemoveContainers);} + + static void SetBetheBloch(ETRDtrackerV1BetheBloch bb) {fgBB = bb;} + void SetClustersOwner(Bool_t own=kTRUE) {SetBit(kOwner, own); if(!own) fClusters = NULL;} + void SetRemoveContainers(Bool_t rm=kTRUE) {SetBit(kRemoveContainers, rm);} + + Int_t FollowBackProlongation(AliTRDtrackV1 &t); + Int_t FollowProlongation(AliTRDtrackV1 &t); + Int_t LoadClusters(TTree *cTree); + Int_t LoadClusters(TClonesArray *const clusters); + Int_t PropagateBack(AliESDEvent *event); + static Int_t PropagateToX(AliTRDtrackV1 &t, Double_t xToGo, Double_t maxStep); + Bool_t ReadClusters(TTree *in); + Int_t RefitInward(AliESDEvent *event); + static void SetNTimeBins(Int_t nTimeBins){fgNTimeBins = nTimeBins; } + void SetReconstructor(const AliTRDReconstructor *rec) {fkReconstructor = rec;} + void UnloadClusters(); + + class AliTRDLeastSquare{ + public: + AliTRDLeastSquare(); + ~AliTRDLeastSquare(){}; + + void AddPoint(const Double_t * const x, Double_t y, Double_t sigmaY); + void RemovePoint(const Double_t * const x, Double_t y, Double_t sigmaY); + Bool_t Eval(); + void Reset(); + + Double_t GetFunctionParameter(Int_t ParNumber) const {return fParams[ParNumber];} + Double_t GetFunctionValue(const Double_t * const 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 + }; + + class AliTRDtrackFitterRieman{ + public: + AliTRDtrackFitterRieman(); + ~AliTRDtrackFitterRieman(); + + Double_t Eval(); + void Reset(); + + Double_t GetYat(Double_t x) const; + Double_t GetDyDxAt(Double_t x) const; + Double_t GetZat(Double_t x) const; + Double_t GetDzDx() const { return fParameters[4]; }; + Double_t GetCurvature() const; + void GetCovAt(Double_t x, Double_t *cov) const; + + void SetRiemanFitter(TLinearFitter *const fitter) { fTrackFitter = fitter; } + void SetTracklet(Int_t il, AliTRDseedV1 * const tracklet); + void SetSysClusterError(Double_t err) { fSysClusterError = err; }; + private: + AliTRDtrackFitterRieman(const AliTRDtrackFitterRieman &); + AliTRDtrackFitterRieman &operator=(const AliTRDtrackFitterRieman &); + void UpdateFitters(AliTRDseedV1 * const tracklet); + Bool_t CheckAcceptable(Double_t offset, Double_t slope); + Double_t CalculateReferenceX(); + + TLinearFitter *fTrackFitter; // Fitter for linearized track model + AliTRDLeastSquare *fZfitter; // Linear fitter in z-Direction + AliTRDseedV1 *fTracklets[kNPlanes]; // Tracklet container + TMatrixD *fCovarPolY; // Polynomial Covariance Matrix Estimation (y-direction) + TMatrixD *fCovarPolZ; // Polynomial Covariance Matrix Estimation (z-direction) + Double_t fXref; // Reference x position for fit in z-Direction + Double_t fSysClusterError; // Systematic cluster Error + Double_t fParameters[5]; // Track Model Parameter + Double_t fSumPolY[5]; // Sums for polynomial Covariance Matrix Estimation (y-direction) + Double_t fSumPolZ[3]; // Sums for polynomial Covariance Matrix Estimation (z-direction) + }; + +protected: + static Bool_t AdjustSector(AliTRDtrackV1 *const track); + Double_t BuildSeedingConfigs(AliTRDtrackingChamber **stack, Int_t *configs); + Int_t BuildTrackingContainers(); + static Float_t CalculateChi2Z(const 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 * const esdTrackList); + AliTRDseedV1* GetTracklet(AliTRDtrackV1 *const trk, Int_t plane, Int_t &idx); + Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p) const; + Float_t GetR4Layer(Int_t ly) const { return fR[ly];} + Int_t MakeSeeds(AliTRDtrackingChamber **stack, AliTRDseedV1 * const sseed, const Int_t * const ipar); + AliTRDtrackV1* MakeTrack(AliTRDseedV1 * const tracklet); + AliTRDtrackV1* SetTrack(const AliTRDtrackV1 * const track); + AliTRDseedV1* SetTracklet(const AliTRDseedV1 * const tracklet); + void UnsetTrackletsTrack(const AliTRDtrackV1 * const track); private: + AliTRDtrackerV1(const AliTRDtrackerV1 &tracker); + AliTRDtrackerV1 &operator=(const AliTRDtrackerV1 &tracker); + Double_t CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4]); + Double_t CalculateTrackLikelihood(Double_t *chi2); + Bool_t ImproveSeedQuality(AliTRDtrackingChamber **stack, AliTRDseedV1 *tracklet, Double_t &chi2); + static Float_t CalculateReferenceX(const AliTRDseedV1 *const tracklets); + void ResetSeedTB(); + Float_t GetChi2Y(const AliTRDseedV1 *const tracklets) const; + Float_t GetChi2Z(const AliTRDseedV1 *const tracklets) const; + Float_t GetChi2Phi(const AliTRDseedV1 *const tracklets) const; + + const AliTRDReconstructor *fkReconstructor; // reconstructor manager + const AliTRDrecoParam *fkRecoParam; // reco param for the current event + 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 *fTracksESD; // List of ESD tracks in current SM + Float_t fR[kNPlanes]; //! rough radial position of each TRD layer - static Double_t fgTopologicQA[kNConfigs]; // Topologic quality - Double_t fTrackQuality[kMaxTracksStack]; // Track quality - Int_t fSeedLayer[kMaxTracksStack]; // Seed layer - Int_t fSieveSeeding; //! Seeding iterator - TClonesArray *fTracklets; // List of tracklets for all sectors - AliTRDrecoParam *fRecoParam; // Reconstruction parameters - AliTRDtrackerFitter *fFitter; //! Fitter class of the tracker + // stand alone tracking + 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 + Int_t fEventInFile; //! event in file being tracked (debug purposes) - ClassDef(AliTRDtrackerV1, 1) // Stand alone tracker development class + static ETRDtrackerV1BetheBloch fgBB; // Bethe Bloch method + static const Double_t fgkX0[kNPlanes]; // default values for the position of anode wire + 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 + + ClassDef(AliTRDtrackerV1, 7) // TRD tracker - tracklet based tracking }; #endif