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1c53abe2 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 */
5
91162307 6
1c53abe2 7/* $Id$ */
8
9//-------------------------------------------------------
47966a6d 10// TPC tracker
11// Parallel tracker
1c53abe2 12//
13// Origin:
14//-------------------------------------------------------
6d171107 15
81e97e0d 16#include <TError.h>
1c53abe2 17#include "AliTracker.h"
81e97e0d 18#include "AliTPCreco.h"
19#include "AliPID.h"
b9671574 20#include "AliTPCclusterMI.h"
81e97e0d 21
b67e07dc 22
1c53abe2 23class TFile;
24class AliTPCParam;
25class AliTPCseed;
91162307 26class AliTPCTrackerPoint;
af885e0f 27class AliESDEvent;
91162307 28class TTree;
eea478d3 29class AliESDkink;
81e97e0d 30class TTreeSRedirector;
2ccb4dfc 31class AliTrackPoint;
1c53abe2 32
33class AliTPCtrackerMI : public AliTracker {
34public:
e046d791 35 AliTPCtrackerMI();
d26d9159 36 AliTPCtrackerMI(const AliTPCParam *par);
b67e07dc 37 virtual ~AliTPCtrackerMI();
91162307 38 //
d26d9159 39 void SetIteration(Int_t iteration){fIteration = iteration;}
af885e0f 40 virtual Int_t Clusters2Tracks (AliESDEvent *esd);
41 virtual Int_t RefitInward (AliESDEvent *esd);
d26d9159 42 virtual Int_t LoadClusters (TTree * tree);
43 Int_t LoadClusters();
44 void UnloadClusters();
75fb37cc 45 void Transform(AliTPCclusterMI * cluster);
91162307 46 //
47 void SetIO(); //set default IO from folders
af885e0f 48 void SetIO(TTree * input, TTree * output, AliESDEvent * event);
d26d9159 49 void FillESD(TObjArray* arr);
91162307 50 void WriteTracks();
d26d9159 51 void WriteTracks(TTree * tree);
91162307 52 void DeleteSeeds();
53 void SetDebug(Int_t debug){ fDebug = debug;}
af885e0f 54 void FindKinks(TObjArray * array, AliESDEvent * esd);
6d493ea0 55 //
56 void FindCurling(TObjArray * array, AliESDEvent * esd, Int_t iter);
57 void FindSplitted(TObjArray * array, AliESDEvent * esd, Int_t iter);
58 void FindMultiMC(TObjArray * array, AliESDEvent * esd, Int_t iter);
59 //
af885e0f 60 void FindV0s(TObjArray * array, AliESDEvent * esd);
51ad6848 61 void UpdateKinkQualityM(AliTPCseed * seed);
eea478d3 62 void UpdateKinkQualityD(AliTPCseed * seed);
63 Int_t CheckKinkPoint(AliTPCseed*seed, AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
64 Int_t RefitKink(AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
1c53abe2 65 Int_t ReadSeeds(const TFile *in);
91162307 66 TObjArray * GetSeeds(){return fSeeds;}
67 //
34acb742 68 AliCluster * GetCluster(Int_t index) const {return (AliCluster*)GetClusterMI(index);}
1c53abe2 69 AliTPCclusterMI *GetClusterMI(Int_t index) const;
f8aae377 70 Int_t Clusters2Tracks();
af32720d 71 virtual void CookLabel(AliKalmanTrack *tk,Float_t wrong) const;
51ad6848 72 virtual Int_t CookLabel(AliTPCseed *t,Float_t wrong, Int_t first,Int_t last ) const;
91162307 73
c9427e08 74 void RotateToLocal(AliTPCseed *seed);
91162307 75
76
77 Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0, Int_t step=1);
78 Int_t FollowProlongationFast(AliTPCseed& t, Int_t rf=0, Int_t step=1);
2ccb4dfc 79 Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p ) const;
80
91162307 81 Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf);
82 Int_t FollowToNext(AliTPCseed& t, Int_t nr);
83 Int_t FollowToNextFast(AliTPCseed& t, Int_t nr);
84 Int_t UpdateClusters(AliTPCseed& t, Int_t nr);
85 Int_t FollowToNextCluster( AliTPCseed& t, Int_t nr);
86
91162307 87 Int_t PropagateBack(TObjArray * arr);
af885e0f 88 Int_t PropagateBack(AliESDEvent * event);
91162307 89 Int_t PropagateBack(AliTPCseed *pt, Int_t row0, Int_t row1);
90 Int_t PropagateForward();
91 Int_t PropagateForward2(TObjArray * arr);
92
47966a6d 93 void SortTracks(TObjArray * arr, Int_t mode) const;
91162307 94
95
1c53abe2 96 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
97 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
98
b67e07dc 99 Double_t F1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
100 Double_t F1old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
101 Double_t F2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
102 Double_t F2old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
91162307 103
b67e07dc 104 Double_t F3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
105 Double_t F3n(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2,
91162307 106 Double_t c);
107 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
108
b67e07dc 109 public:
1c53abe2 110//**************** Internal tracker class **********************
b67e07dc 111 class AliTPCSector;
1c53abe2 112 class AliTPCRow {
113 public:
b67e07dc 114 AliTPCRow();
1c53abe2 115 ~AliTPCRow();
116 void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
982aff31 117 void ResetClusters();
1c53abe2 118 operator int() const {return fN;}
91162307 119 Int_t GetN() const {return fN;}
1c53abe2 120 const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
121 UInt_t GetIndex(Int_t i) const {return fIndex[i];}
91162307 122 inline Int_t Find(Double_t z) const;
1627d1c4 123 AliTPCclusterMI * FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const;
91162307 124 AliTPCclusterMI * FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
6d493ea0 125
1c53abe2 126 void SetX(Double_t x) {fX=x;}
127 Double_t GetX() const {return fX;}
b9671574 128 Float_t GetDeadZone() const {return fDeadZone;}
129 void SetDeadZone(Float_t d) {fDeadZone=d;}
130 Int_t GetN1() const {return fN1;}
131 void SetN1(Int_t n) {fN1=n;}
132 Int_t GetN2() const {return fN2;}
133 void SetN2(Int_t n) {fN2=n;}
134 AliTPCclusterMI* GetClusters1() const {return fClusters1;}
135 AliTPCclusterMI* GetClusters2() const {return fClusters2;}
136 void SetClusters1(AliTPCclusterMI* cl) {fClusters1=cl;}
137 void SetClusters2(AliTPCclusterMI* cl) {fClusters2=cl;}
c1ea348f 138 void SetCluster1(Int_t i, const AliTPCclusterMI &cl) {fClusters1[i]=cl;}
139 void SetCluster2(Int_t i, const AliTPCclusterMI &cl) {fClusters2[i]=cl;}
b9671574 140 AliTPCclusterMI* GetCluster1(Int_t i) const {return &fClusters1[i];}
141 AliTPCclusterMI* GetCluster2(Int_t i) const {return &fClusters2[i];}
142 Short_t GetFastCluster(Int_t i) const {return fFastCluster[i];}
64996bea 143 void SetFastCluster(Int_t i, Short_t cl);
b9671574 144
6d171107 145private:
9996a03b 146 AliTPCRow & operator=(const AliTPCRow & );
147 AliTPCRow(const AliTPCRow& /*r*/); //dummy copy constructor
1c53abe2 148 Float_t fDeadZone; // the width of the dead zone
91162307 149 AliTPCclusterMI *fClusters1; //array with clusters 1
b67e07dc 150 Int_t fN1; //number of clusters on left side
91162307 151 AliTPCclusterMI *fClusters2; //array with clusters 2
b67e07dc 152 Int_t fN2; // number of clusters on right side of the TPC
153 Short_t fFastCluster[510]; //index of the nearest cluster at given position
1c53abe2 154 Int_t fN; //number of clusters
155 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
91162307 156 // indexes for cluster at given position z
157 // AliTPCclusterMI *fClustersArray; //
1c53abe2 158 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
159 Double_t fX; //X-coordinate of this row
2fc0c115 160
1c53abe2 161 };
162
163//**************** Internal tracker class **********************
164 class AliTPCSector {
165 public:
e046d791 166 AliTPCSector():
167 fN(0),
168 fRow(0),
169 fAlpha(0.),
170 fAlphaShift(0.),
171 fPadPitchWidth(0.),
172 fPadPitchLength(0.),
173 f1PadPitchLength(0.),
174 f2PadPitchLength(0.){}
1c53abe2 175 ~AliTPCSector() { delete[] fRow; }
9996a03b 176 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
177 Int_t GetNRows() const { return fN; }
178 void Setup(const AliTPCParam *par, Int_t flag);
179 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
180 Double_t GetMaxY(Int_t l) const {
181 return GetX(l)*TMath::Tan(0.5*GetAlpha());
182 }
183 Double_t GetAlpha() const {return fAlpha;}
184 Double_t GetAlphaShift() const {return fAlphaShift;}
185 //Int_t GetFirst(){return fFirstRow;}
186 Int_t GetRowNumber(Double_t x) const;
187 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
188 Double_t GetPadPitchLength() const {return fPadPitchLength;}
189 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
190
1c53abe2 191 private:
9996a03b 192 AliTPCSector & operator=(const AliTPCSector & );
193 AliTPCSector(const AliTPCSector &/*s*/); //dummy copy contructor
194 Int_t fN; //number of pad rows
195 //Int_t fFirstRow; //offset
196 AliTPCRow *fRow; //array of pad rows
197 Double_t fAlpha; //opening angle
198 Double_t fAlphaShift; //shift angle;
199 Double_t fPadPitchWidth; //pad pitch width
200 Double_t fPadPitchLength; //pad pitch length
201 Double_t f1PadPitchLength; //pad pitch length
202 Double_t f2PadPitchLength; //pad pitch length
1c53abe2 203
1c53abe2 204 };
205
206 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
207 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
91162307 208 void SignShared(TObjArray * arr);
209
51ad6848 210 void RemoveUsed2(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t minimal);
91162307 211
47966a6d 212 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
213 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
91162307 214 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
c9427e08 215
1c53abe2 216private:
6c94f330 217 AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
218 AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
91162307 219 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
5afd7dbd 220 inline Bool_t IsActive(Int_t sec, Int_t row);
47966a6d 221 inline Double_t GetXrow(Int_t row) const;
222 inline Double_t GetMaxY(Int_t row) const;
223 inline Int_t GetRowNumber(Double_t x) const;
eea478d3 224 Int_t GetRowNumber(Double_t x[3]) const;
47966a6d 225 inline Double_t GetPadPitchLength(Double_t x) const;
226 inline Double_t GetPadPitchLength(Int_t row) const;
91162307 227
1c53abe2 228 Float_t GetSigmaY(AliTPCseed * seed);
229 Float_t GetSigmaZ(AliTPCseed * seed);
91162307 230 void GetShape(AliTPCseed * seed, Int_t row);
231
af885e0f 232 void ReadSeeds(AliESDEvent *event, Int_t direction); //read seeds from the event
1c53abe2 233
91162307 234 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);
235 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
1627d1c4 236
91162307 237 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);
238
1c53abe2 239
91162307 240 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
d26d9159 241 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
eea478d3 242 AliTPCseed *ReSeed(AliTPCseed *t, Int_t r0, Bool_t forward); //reseed
91162307 243
244
245
246 AliTPCseed * ReSeed(AliTPCseed *t);
247 Int_t LoadInnerSectors();
248 Int_t LoadOuterSectors();
249 void UnsignClusters();
250 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
251
252 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
253 void Tracking(TObjArray * arr);
254 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
255 TObjArray * Tracking();
a395b09f 256 TObjArray * TrackingSpecial();
c1ea348f 257 void SumTracks(TObjArray *arr1,TObjArray *&arr2) const;
47966a6d 258 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
259 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
1c53abe2 260
4c57c771 261 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
91162307 262 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
1c53abe2 263
19b00333 264 void MakeBitmaps(AliTPCseed *t);
1c53abe2 265
1c53abe2 266 const Int_t fkNIS; //number of inner sectors
267 AliTPCSector *fInnerSec; //array of inner sectors;
268 const Int_t fkNOS; //number of outer sectors
269 AliTPCSector *fOuterSec; //array of outer sectors;
270
271 Int_t fN; //number of loaded sectors
272 AliTPCSector *fSectors; //pointer to loaded sectors;
91162307 273 //
274 TTree * fInput; // input tree with clusters
275 TTree * fOutput; // output tree with tracks
276 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
277 TTree * fTreeDebug; // output with a debug information about track
af885e0f 278 AliESDEvent * fEvent; // output with esd tracks
91162307 279 Int_t fDebug; // debug option
280 Bool_t fNewIO; // indicated if we have data using New IO
1c53abe2 281 Int_t fNtracks; //current number of tracks
282 TObjArray *fSeeds; //array of track seeds
91162307 283 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
1c53abe2 284 // TObjArray * fTrackPointPool; // ! pool with track points
91162307 285 // TObjArray * fSeedPool; //! pool with seeds
286 Double_t fXRow[200]; // radius of the pad row
287 Double_t fYMax[200]; // max y for given pad row
288 Double_t fPadLength[200]; // max y for given pad row
1c53abe2 289 const AliTPCParam *fParam; //pointer to the parameters
81e97e0d 290 TTreeSRedirector *fDebugStreamer; //!debug streamer
af885e0f 291 ClassDef(AliTPCtrackerMI,2)
1c53abe2 292};
293
91162307 294
295AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
296{
297 //
298 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
299}
300
5afd7dbd 301Bool_t AliTPCtrackerMI::IsActive(Int_t sec, Int_t row)
302{
303 //
304 // check if the given sector row is active
305 //
306 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()].GetN()>0:fInnerSec[sec][row].GetN()>0;
307}
308
309
47966a6d 310Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
91162307 311 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
312 return fXRow[row];
313}
314
47966a6d 315Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
91162307 316 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
317 return fYMax[row];
318}
319
47966a6d 320Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
91162307 321{
322 //
323 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
324}
325
47966a6d 326Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
91162307 327{
328 //
329 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
330 //return fPadLength[row];
331}
332
47966a6d 333Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
91162307 334{
335 //
336 return fPadLength[row];
337}
338
339
340
1c53abe2 341#endif
342
343