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 //-------------------------------------------------------
19 #include "AliTPCtrack.h"
20 #include "AliComplexCluster.h"
26 class AliTPCclusterMI;
27 class AliTPCTrackerPoint;
32 class AliTPCseed : public AliTPCtrack {
35 virtual ~AliTPCseed();
36 AliTPCseed(const AliTPCtrack &t);
37 AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner = kFALSE);
38 //AliTPCseed(const AliTPCseed &t, Double_t a);
39 AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5],
40 const Double_t cc[15], Int_t i);
41 AliTPCseed &operator = (const AliTPCseed & param);
42 static Int_t RefitTrack(AliTPCseed* seed, AliExternalTrackParam * in, AliExternalTrackParam * out);
43 Bool_t RefitTrack(AliTPCseed* seed, Bool_t out);
44 Int_t Compare(const TObject *o) const;
45 void Reset(Bool_t all = kTRUE);
46 Int_t GetProlongation(Double_t xr, Double_t &y, Double_t & z) const;
47 virtual Double_t GetPredictedChi2(const AliCluster *cluster2) const;
48 virtual Bool_t Update(const AliCluster* c2, Double_t chi2, Int_t i);
49 AliTPCTrackerPoint * GetTrackPoint(Int_t i);
50 AliTPCclusterMI * GetClusterFast(Int_t irow){ return fClusterPointer[irow];}
51 void SetClusterPointer(Int_t irow, AliTPCclusterMI* cl) {fClusterPointer[irow]=cl;}
52 Double_t GetDensityFirst(Int_t n);
53 Double_t GetSigma2C() const {
54 Double_t cnv=GetBz()*kB2C;
55 return GetSigma1Pt2()*cnv*cnv;
57 void GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2);
59 void Modify(Double_t factor);
60 void SetClusterIndex2(Int_t row, Int_t index) {
63 Int_t GetClusterIndex2(Int_t row) const {
66 Int_t GetClusterSector(Int_t row) const {
68 if (fIndex[row]>=0) pica = ((fIndex[row]&0xff000000)>>24);
72 Double_t GetYat(Double_t x) const;
74 void SetErrorY2(Float_t sy2){fErrorY2=sy2;}
75 void SetErrorZ2(Float_t sz2){fErrorZ2=sz2;}
76 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);
77 Float_t CookShape(Int_t type);
78 // Float_t CookShape2(Int_t type,Bool_t withQ);
80 Bool_t IsActive() const { return !(fRemoval);}
81 void Desactivate(Int_t reason){ fRemoval = reason;}
82 AliTPCclusterMI* GetClusterPointer(Int_t i) const {return fClusterPointer[i];}
83 Int_t GetSector() const {return fSector;}
84 Float_t GetCurrentSigmaY2() const {return fCurrentSigmaY2;}
85 Float_t GetCurrentSigmaZ2() const {return fCurrentSigmaZ2;}
86 Int_t GetRelativeSector() const {return fRelativeSector;}
87 Char_t GetCircular() const {return fCircular;}
89 void SetCurrentSigmaY2(Float_t s) {fCurrentSigmaY2=s;}
90 void SetCurrentSigmaZ2(Float_t s) {fCurrentSigmaZ2=s;}
91 void SetRelativeSector(Int_t r) {fRelativeSector=r;}
92 void SetCircular(Char_t c) {fCircular=c;}
93 void SetIsSeeding(Bool_t s) {fIsSeeding=s;}
94 void SetSeedType(Int_t s) {fSeedType=s;}
95 void SetSeed1(Int_t s) {fSeed1=s;}
96 void SetSeed2(Int_t s) {fSeed2=s;}
97 void SetESD(AliESDtrack* esd) {fEsd=esd;}
98 void SetBSigned(Bool_t s) {fBSigned=s;}
99 void SetSort(Int_t s) {fSort=s;}
100 void SetOverlapLabel(Int_t i, Int_t l) {fOverlapLabels[i]=l;}
101 void SetCurrentCluster(AliTPCclusterMI* cl) {fCurrentCluster=cl;}
102 void SetNoCluster(Int_t n) {fNoCluster=n;}
103 void SetRow(Int_t n) {fRow=n;}
104 void SetSector(Int_t n) {fSector=n;}
105 void SetCurrentClusterIndex1(Int_t n) {fCurrentClusterIndex1=n;}
106 void SetInDead(Bool_t s) {fInDead=s;}
108 Double_t TPCrPID(Int_t i) const {return fTPCr[i];}
109 Double_t* TPCrPIDs() {return fTPCr;}
110 Bool_t GetIsSeeding() const {return fIsSeeding;}
111 Int_t GetSeedType() const {return fSeedType;}
112 Int_t GetSeed1() const {return fSeed1;}
113 Int_t GetSeed2() const {return fSeed2;}
114 AliESDtrack* GetESD() {return fEsd;}
115 Float_t GetSDEDX(Int_t i) const {return fSDEDX[i];}
116 Int_t GetNCDEDX(Int_t i) const {return fNCDEDX[i];}
117 Bool_t GetBSigned() const {return fBSigned;}
118 Int_t GetSort() const {return fSort;}
119 Int_t GetOverlapLabel(Int_t i) const {return fOverlapLabels[i];}
120 AliTPCclusterMI* GetCurrentCluster() const {return fCurrentCluster;}
121 Int_t GetNoCluster() const {return fNoCluster;}
122 Int_t GetRow() const {return fRow;}
123 Int_t GetCurrentClusterIndex1() const {return fCurrentClusterIndex1;}
124 Bool_t GetInDead() const {return fInDead;}
125 Float_t GetErrorY2() const {return fErrorY2;}
126 Float_t GetErrorZ2() const {return fErrorZ2;}
127 Float_t GetCMeanSigmaY2p30() const {return fCMeanSigmaY2p30;}
128 Float_t GetCMeanSigmaZ2p30() const {return fCMeanSigmaZ2p30;}
129 Float_t GetCMeanSigmaY2p30R() const {return fCMeanSigmaY2p30R;}
130 Float_t GetCMeanSigmaZ2p30R() const {return fCMeanSigmaZ2p30R;}
133 void SetClusterMapBit(int ibit, Bool_t state);
134 Bool_t GetClusterMapBit(int ibit);
135 void SetSharedMapBit(int ibit, Bool_t state);
136 Bool_t GetSharedMapBit(int ibit);
137 const TBits& GetClusterMap() const { return fClusterMap; };
138 const TBits& GetSharedMap() const { return fSharedMap; };
140 Float_t CookdEdxNorm(Double_t low=0.05, Double_t up=0.70, Int_t type=0, Int_t i1=0, Int_t i2=159, Bool_t shapeNorm=kTRUE, Int_t posNorm=0, Int_t padNorm=0,Int_t returnVal=0);
142 Float_t CookdEdxAnalytical(Double_t low=0.05, Double_t up=0.70, Int_t type=0, Int_t i1=0, Int_t i2=159, Int_t returnVal=0);
144 static void GetError(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
145 Double_t& erry, Double_t &errz);
146 static void GetShape(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
147 Double_t& rmsy, Double_t &rmsz);
148 static Double_t GetQCorrGeom(Float_t ty, Float_t tz);
149 static Double_t GetQCorrShape(Int_t ipad, Int_t type,Float_t z, Float_t ty, Float_t tz, Float_t q, Float_t thr);
152 // AliTPCseed & operator = (const AliTPCseed &)
153 // {::Fatal("= operator","Not Implemented\n");return *this;}
154 AliESDtrack * fEsd; //!
155 AliTPCclusterMI* fClusterPointer[160]; // array of cluster pointers -
156 Bool_t fClusterOwner; // indicates the track is owner of cluster
158 Int_t fRow; // current row number
159 Int_t fSector; // current sector number
160 Int_t fRelativeSector; // index of current relative sector
161 Float_t fCurrentSigmaY2; //!expected current cluster sigma Y
162 Float_t fCurrentSigmaZ2; //!expected current cluster sigma Z
163 Float_t fCMeanSigmaY2p30; //! current mean sigma Y2 - mean30%
164 Float_t fCMeanSigmaZ2p30; //! current mean sigma Z2 - mean30%
165 Float_t fCMeanSigmaY2p30R; //! current relative mean sigma Y2 - mean30%
166 Float_t fCMeanSigmaZ2p30R; //! current relative mean sigma Z2 - mean30%
167 Float_t fErrorY2; //!sigma of current cluster
168 Float_t fErrorZ2; //!sigma of current cluster
169 AliTPCclusterMI * fCurrentCluster; //!pointer to the current cluster for prolongation
170 Int_t fCurrentClusterIndex1; //! index of the current cluster
171 Bool_t fInDead; //! indicate if the track is in dead zone
172 Bool_t fIsSeeding; //!indicates if it is proces of seeading
173 Int_t fNoCluster; //!indicates number of rows without clusters
174 Int_t fSort; //!indicate criteria for sorting
175 Bool_t fBSigned; //indicates that clusters of this trackes are signed to be used
178 Float_t fDEDX[4]; // dedx according padrows
179 Float_t fSDEDX[4]; // sdedx according padrows
180 Int_t fNCDEDX[4]; // number of clusters for dedx measurment
181 Double_t fTPCr[AliPID::kSPECIES]; // rough PID according TPC
183 Int_t fSeedType; //seeding type
184 Int_t fSeed1; //first row for seeding
185 Int_t fSeed2; //last row for seeding
186 Int_t fOverlapLabels[12]; //track labels and the length of the overlap
187 Float_t fMAngular; // mean angular factor
188 Char_t fCircular; // indicates curlin track
189 AliTPCTrackerPoint fTrackPoints[160]; //track points - array track points
190 TBits fClusterMap; // bit is 1 if track has a hit on padrow
191 TBits fSharedMap; // bit is 1 if track shares a hit on padrow
192 ClassDef(AliTPCseed,3)