1 #ifndef ALITPCTRACKERMI_H
2 #define ALITPCTRACKERMI_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 //-------------------------------------------------------
14 //-------------------------------------------------------
17 #include "AliTracker.h"
18 #include "AliTPCreco.h"
25 class AliTPCclusterMI;
26 class AliTPCTrackerPoint;
30 class TTreeSRedirector;
33 class AliTPCtrackerMI : public AliTracker {
35 AliTPCtrackerMI():AliTracker(),fkNIS(0),fkNOS(0) {
36 fInnerSec=fOuterSec=0; fSeeds=0;
38 AliTPCtrackerMI(const AliTPCParam *par);
39 virtual ~AliTPCtrackerMI();
41 void SetIteration(Int_t iteration){fIteration = iteration;}
42 virtual Int_t Clusters2Tracks (AliESD *esd);
43 virtual Int_t RefitInward (AliESD *esd);
44 virtual Int_t LoadClusters (TTree * tree);
46 void UnloadClusters();
47 void Transform(AliCluster * cluster);
49 void SetIO(); //set default IO from folders
50 void SetIO(TTree * input, TTree * output, AliESD * event);
51 void FillESD(TObjArray* arr);
53 void WriteTracks(TTree * tree);
55 void SetDebug(Int_t debug){ fDebug = debug;}
56 void FindKinks(TObjArray * array, AliESD * esd);
57 void FindV0s(TObjArray * array, AliESD * esd);
58 void UpdateKinkQualityM(AliTPCseed * seed);
59 void UpdateKinkQualityD(AliTPCseed * seed);
60 Int_t CheckKinkPoint(AliTPCseed*seed, AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
61 Int_t RefitKink(AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
62 Int_t ReadSeeds(const TFile *in);
63 TObjArray * GetSeeds(){return fSeeds;}
65 AliCluster * GetCluster(Int_t index) const {return (AliCluster*)GetClusterMI(index);}
66 AliTPCclusterMI *GetClusterMI(Int_t index) const;
67 Int_t Clusters2Tracks();
68 virtual void CookLabel(AliKalmanTrack *tk,Float_t wrong) const;
69 virtual Int_t CookLabel(AliTPCseed *t,Float_t wrong, Int_t first,Int_t last ) const;
71 void RotateToLocal(AliTPCseed *seed);
74 Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0, Int_t step=1);
75 Int_t FollowProlongationFast(AliTPCseed& t, Int_t rf=0, Int_t step=1);
76 Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p ) const;
78 Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf);
79 Int_t FollowToNext(AliTPCseed& t, Int_t nr);
80 Int_t FollowToNextFast(AliTPCseed& t, Int_t nr);
81 Int_t UpdateClusters(AliTPCseed& t, Int_t nr);
82 Int_t FollowToNextCluster( AliTPCseed& t, Int_t nr);
84 Int_t PropagateBack(TObjArray * arr);
85 Int_t PropagateBack(AliESD * event);
86 Int_t PropagateBack(AliTPCseed *pt, Int_t row0, Int_t row1);
87 Int_t PropagateForward();
88 Int_t PropagateForward2(TObjArray * arr);
90 void SortTracks(TObjArray * arr, Int_t mode) const;
93 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
94 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
96 Double_t F1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
97 Double_t F1old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
98 Double_t F2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
99 Double_t F2old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
101 Double_t F3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
102 Double_t F3n(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2,
104 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
107 //**************** Internal tracker class **********************
110 friend class AliTPCtrackerMI;
111 friend class AliTPCtrackerMI::AliTPCSector;
115 void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
116 void ResetClusters();
117 operator int() const {return fN;}
118 Int_t GetN() const {return fN;}
119 const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
120 UInt_t GetIndex(Int_t i) const {return fIndex[i];}
121 inline Int_t Find(Double_t z) const;
122 AliTPCclusterMI * FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const;
123 AliTPCclusterMI * FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
124 AliTPCclusterMI * FindNearest3(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
126 void SetX(Double_t x) {fX=x;}
127 Double_t GetX() const {return fX;}
129 AliTPCRow & operator=(const AliTPCRow & );
130 AliTPCRow(const AliTPCRow& /*r*/); //dummy copy constructor
131 Float_t fDeadZone; // the width of the dead zone
132 AliTPCclusterMI *fClusters1; //array with clusters 1
133 Int_t fN1; //number of clusters on left side
134 AliTPCclusterMI *fClusters2; //array with clusters 2
135 Int_t fN2; // number of clusters on right side of the TPC
136 Short_t fFastCluster[510]; //index of the nearest cluster at given position
137 Int_t fN; //number of clusters
138 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
139 // indexes for cluster at given position z
140 // AliTPCclusterMI *fClustersArray; //
141 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
142 Double_t fX; //X-coordinate of this row
146 //**************** Internal tracker class **********************
148 friend class AliTPCtrackerMI;
150 AliTPCSector() { fN=0; fRow = 0; }
151 ~AliTPCSector() { delete[] fRow; }
152 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
153 Int_t GetNRows() const { return fN; }
154 void Setup(const AliTPCParam *par, Int_t flag);
155 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
156 Double_t GetMaxY(Int_t l) const {
157 return GetX(l)*TMath::Tan(0.5*GetAlpha());
159 Double_t GetAlpha() const {return fAlpha;}
160 Double_t GetAlphaShift() const {return fAlphaShift;}
161 //Int_t GetFirst(){return fFirstRow;}
162 Int_t GetRowNumber(Double_t x) const;
163 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
164 Double_t GetPadPitchLength() const {return fPadPitchLength;}
165 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
168 AliTPCSector & operator=(const AliTPCSector & );
169 AliTPCSector(const AliTPCSector &/*s*/); //dummy copy contructor
170 Int_t fN; //number of pad rows
171 //Int_t fFirstRow; //offset
172 AliTPCRow *fRow; //array of pad rows
173 Double_t fAlpha; //opening angle
174 Double_t fAlphaShift; //shift angle;
175 Double_t fPadPitchWidth; //pad pitch width
176 Double_t fPadPitchLength; //pad pitch length
177 Double_t f1PadPitchLength; //pad pitch length
178 Double_t f2PadPitchLength; //pad pitch length
182 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
183 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
184 void SignShared(TObjArray * arr);
186 void RemoveUsed(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
187 void RemoveUsed2(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t minimal);
188 void RemoveDouble(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
190 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
191 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
192 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
195 AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
196 AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
197 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
198 inline Bool_t IsActive(Int_t sec, Int_t row);
199 inline Double_t GetXrow(Int_t row) const;
200 inline Double_t GetMaxY(Int_t row) const;
201 inline Int_t GetRowNumber(Double_t x) const;
202 Int_t GetRowNumber(Double_t x[3]) const;
203 inline Double_t GetPadPitchLength(Double_t x) const;
204 inline Double_t GetPadPitchLength(Int_t row) const;
206 Float_t GetSigmaY(AliTPCseed * seed);
207 Float_t GetSigmaZ(AliTPCseed * seed);
208 void GetShape(AliTPCseed * seed, Int_t row);
210 void ReadSeeds(AliESD *event, Int_t direction); //read seeds from the event
212 void MakeSeeds3(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1, Int_t ddsec=0);
213 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
215 void MakeSeeds2(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1, Bool_t bconstrain=kTRUE);
218 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
219 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
220 AliTPCseed *ReSeed(AliTPCseed *t, Int_t r0, Bool_t forward); //reseed
224 AliTPCseed * ReSeed(AliTPCseed *t);
225 Int_t LoadInnerSectors();
226 Int_t LoadOuterSectors();
227 void UnsignClusters();
228 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
230 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
231 void Tracking(TObjArray * arr);
232 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
233 TObjArray * Tracking();
234 TObjArray * TrackingSpecial();
235 void SumTracks(TObjArray *arr1,TObjArray *arr2) const;
236 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
237 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
239 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
240 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
243 const Int_t fkNIS; //number of inner sectors
244 AliTPCSector *fInnerSec; //array of inner sectors;
245 const Int_t fkNOS; //number of outer sectors
246 AliTPCSector *fOuterSec; //array of outer sectors;
248 Int_t fN; //number of loaded sectors
249 AliTPCSector *fSectors; //pointer to loaded sectors;
251 TTree * fInput; // input tree with clusters
252 TTree * fOutput; // output tree with tracks
253 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
254 TTree * fTreeDebug; // output with a debug information about track
255 AliESD * fEvent; // output with esd tracks
256 Int_t fDebug; // debug option
257 Bool_t fNewIO; // indicated if we have data using New IO
258 Int_t fNtracks; //current number of tracks
259 TObjArray *fSeeds; //array of track seeds
260 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
261 // TObjArray * fTrackPointPool; // ! pool with track points
262 // TObjArray * fSeedPool; //! pool with seeds
263 Double_t fXRow[200]; // radius of the pad row
264 Double_t fYMax[200]; // max y for given pad row
265 Double_t fPadLength[200]; // max y for given pad row
266 const AliTPCParam *fParam; //pointer to the parameters
267 TTreeSRedirector *fDebugStreamer; //!debug streamer
268 ClassDef(AliTPCtrackerMI,1)
272 AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
275 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
278 Bool_t AliTPCtrackerMI::IsActive(Int_t sec, Int_t row)
281 // check if the given sector row is active
283 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()].GetN()>0:fInnerSec[sec][row].GetN()>0;
287 Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
288 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
292 Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
293 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
297 Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
300 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
303 Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
306 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
307 //return fPadLength[row];
310 Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
313 return fPadLength[row];