3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 //-------------------------------------------------------
11 // Class needed for TPC parallel tracking
14 //-------------------------------------------------------
18 #include "AliTPCtrack.h"
19 #include "AliComplexCluster.h"
25 class AliTPCclusterMI;
26 class AliTPCTrackerPoint;
30 class AliTPCseed : public AliTPCtrack {
31 friend class AliTPCtrackerMI;
34 virtual ~AliTPCseed();
35 AliTPCseed(const AliTPCtrack &t);
36 AliTPCseed(const AliTPCseed &s);
37 //AliTPCseed(const AliTPCseed &t, Double_t a);
38 AliTPCseed(UInt_t index, const Double_t xx[5],
39 const Double_t cc[15], Double_t xr, Double_t alpha);
40 Int_t Compare(const TObject *o) const;
41 void Reset(Bool_t all = kTRUE);
42 Int_t GetProlongation(Double_t xr, Double_t &y, Double_t & z) const;
43 virtual Double_t GetPredictedChi2(const AliCluster *cluster2) const;
44 virtual Int_t Update(const AliCluster* c2, Double_t chi2, UInt_t i);
45 AliTPCTrackerPoint * GetTrackPoint(Int_t i);
46 void RebuildSeed(); // rebuild seed to be ready for storing
47 Double_t GetDensityFirst(Int_t n);
48 Double_t GetSigma2C() const {return fC44;};
49 void GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2);
51 void Modify(Double_t factor);
52 void SetClusterIndex2(Int_t row, Int_t index) {
55 Int_t GetClusterIndex2(Int_t row) const {
58 Int_t GetClusterSector(Int_t row) const {
60 if (fIndex[row]>=0) pica = ((fIndex[row]&0xff000000)>>24);
64 void SetErrorY2(Float_t sy2){fErrorY2=sy2;}
65 void SetErrorZ2(Float_t sz2){fErrorZ2=sz2;}
66 Float_t CookdEdx(Double_t low=0.05, Double_t up=0.70, Int_t i1=0, Int_t i2=159, Bool_t onlyused = kFALSE);
68 Double_t Bethe(Double_t bg); // return bethe-bloch
69 // void CookdEdx2(Double_t low=0.05, Double_t up=0.70);
70 Bool_t IsActive() const { return !(fRemoval);}
71 void Desactivate(Int_t reason){ fRemoval = reason;}
75 // AliTPCseed & operator = (const AliTPCseed &)
76 // {::Fatal("= operator","Not Implemented\n");return *this;}
77 AliESDtrack * fEsd; //!
78 AliTPCclusterMI* fClusterPointer[160]; // array of cluster pointers -
79 TClonesArray * fPoints; //!array with points along the track
80 TClonesArray * fEPoints; //! array with exact points - calculated in special macro not used in tracking
82 Int_t fRow; //!current row number
83 Int_t fSector; //!current sector number
84 Int_t fRelativeSector; //! index of current relative sector
85 Float_t fCurrentSigmaY2; //!expected current cluster sigma Y
86 Float_t fCurrentSigmaZ2; //!expected current cluster sigma Z
87 Float_t fErrorY2; //!sigma of current cluster
88 Float_t fErrorZ2; //!sigma of current cluster
89 AliTPCclusterMI * fCurrentCluster; //!pointer to the current cluster for prolongation
90 Int_t fCurrentClusterIndex1; //! index of the current cluster
91 Bool_t fInDead; //! indicate if the track is in dead zone
92 Bool_t fIsSeeding; //!indicates if it is proces of seeading
93 Int_t fNoCluster; //!indicates number of rows without clusters
94 Int_t fSort; //!indicate criteria for sorting
95 Bool_t fBSigned; //indicates that clusters of this trackes are signed to be used
98 Float_t fDEDX[4]; // dedx according padrows
99 Float_t fSDEDX[4]; // sdedx according padrows
100 Int_t fNCDEDX[4]; // number of clusters for dedx measurment
101 Double_t fTPCr[AliPID::kSPECIES]; // rough PID according TPC
103 Int_t fSeedType; //seeding type
104 Int_t fSeed1; //first row for seeding
105 Int_t fSeed2; //last row for seeding
106 Int_t fOverlapLabels[12]; //track labels and the length of the overlap
107 Float_t fMAngular; // mean angular factor
108 Char_t fCircular; // indicates curlin track
109 AliTPCTrackerPoint fTrackPoints[160]; //track points - array track points
111 ClassDef(AliTPCseed,1)