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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;
27class AliESD;
28class TTree;
eea478d3 29class AliESDkink;
81e97e0d 30class TTreeSRedirector;
2ccb4dfc 31class AliTrackPoint;
1c53abe2 32
33class AliTPCtrackerMI : public AliTracker {
34public:
d26d9159 35 AliTPCtrackerMI():AliTracker(),fkNIS(0),fkNOS(0) {
36 fInnerSec=fOuterSec=0; fSeeds=0;
37 }
38 AliTPCtrackerMI(const AliTPCParam *par);
b67e07dc 39 virtual ~AliTPCtrackerMI();
91162307 40 //
d26d9159 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);
45 Int_t LoadClusters();
46 void UnloadClusters();
0201b65c 47 void Transform(AliCluster * cluster);
91162307 48 //
49 void SetIO(); //set default IO from folders
50 void SetIO(TTree * input, TTree * output, AliESD * event);
d26d9159 51 void FillESD(TObjArray* arr);
91162307 52 void WriteTracks();
d26d9159 53 void WriteTracks(TTree * tree);
91162307 54 void DeleteSeeds();
55 void SetDebug(Int_t debug){ fDebug = debug;}
51ad6848 56 void FindKinks(TObjArray * array, AliESD * esd);
81e97e0d 57 void FindV0s(TObjArray * array, AliESD * esd);
51ad6848 58 void UpdateKinkQualityM(AliTPCseed * seed);
eea478d3 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);
1c53abe2 62 Int_t ReadSeeds(const TFile *in);
91162307 63 TObjArray * GetSeeds(){return fSeeds;}
64 //
34acb742 65 AliCluster * GetCluster(Int_t index) const {return (AliCluster*)GetClusterMI(index);}
1c53abe2 66 AliTPCclusterMI *GetClusterMI(Int_t index) const;
f8aae377 67 Int_t Clusters2Tracks();
af32720d 68 virtual void CookLabel(AliKalmanTrack *tk,Float_t wrong) const;
51ad6848 69 virtual Int_t CookLabel(AliTPCseed *t,Float_t wrong, Int_t first,Int_t last ) const;
91162307 70
c9427e08 71 void RotateToLocal(AliTPCseed *seed);
91162307 72
73
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);
2ccb4dfc 76 Bool_t GetTrackPoint(Int_t index, AliTrackPoint &p ) const;
77
91162307 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);
83
91162307 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);
89
47966a6d 90 void SortTracks(TObjArray * arr, Int_t mode) const;
91162307 91
92
1c53abe2 93 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
94 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
95
b67e07dc 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);
91162307 100
b67e07dc 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,
91162307 103 Double_t c);
104 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
105
b67e07dc 106 public:
1c53abe2 107//**************** Internal tracker class **********************
b67e07dc 108 class AliTPCSector;
1c53abe2 109 class AliTPCRow {
110 public:
b67e07dc 111 AliTPCRow();
1c53abe2 112 ~AliTPCRow();
113 void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
982aff31 114 void ResetClusters();
1c53abe2 115 operator int() const {return fN;}
91162307 116 Int_t GetN() const {return fN;}
1c53abe2 117 const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
118 UInt_t GetIndex(Int_t i) const {return fIndex[i];}
91162307 119 inline Int_t Find(Double_t z) const;
1627d1c4 120 AliTPCclusterMI * FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const;
91162307 121 AliTPCclusterMI * FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
122 AliTPCclusterMI * FindNearest3(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
123
1c53abe2 124 void SetX(Double_t x) {fX=x;}
125 Double_t GetX() const {return fX;}
b9671574 126 Float_t GetDeadZone() const {return fDeadZone;}
127 void SetDeadZone(Float_t d) {fDeadZone=d;}
128 Int_t GetN1() const {return fN1;}
129 void SetN1(Int_t n) {fN1=n;}
130 Int_t GetN2() const {return fN2;}
131 void SetN2(Int_t n) {fN2=n;}
132 AliTPCclusterMI* GetClusters1() const {return fClusters1;}
133 AliTPCclusterMI* GetClusters2() const {return fClusters2;}
134 void SetClusters1(AliTPCclusterMI* cl) {fClusters1=cl;}
135 void SetClusters2(AliTPCclusterMI* cl) {fClusters2=cl;}
136 void SetCluster1(Int_t i, AliTPCclusterMI cl) {fClusters1[i]=cl;}
137 void SetCluster2(Int_t i, AliTPCclusterMI cl) {fClusters2[i]=cl;}
138 AliTPCclusterMI* GetCluster1(Int_t i) const {return &fClusters1[i];}
139 AliTPCclusterMI* GetCluster2(Int_t i) const {return &fClusters2[i];}
140 Short_t GetFastCluster(Int_t i) const {return fFastCluster[i];}
141 void SetFastCluster(Int_t i, Short_t cl) {fFastCluster[i]=cl;}
142
6d171107 143private:
9996a03b 144 AliTPCRow & operator=(const AliTPCRow & );
145 AliTPCRow(const AliTPCRow& /*r*/); //dummy copy constructor
1c53abe2 146 Float_t fDeadZone; // the width of the dead zone
91162307 147 AliTPCclusterMI *fClusters1; //array with clusters 1
b67e07dc 148 Int_t fN1; //number of clusters on left side
91162307 149 AliTPCclusterMI *fClusters2; //array with clusters 2
b67e07dc 150 Int_t fN2; // number of clusters on right side of the TPC
151 Short_t fFastCluster[510]; //index of the nearest cluster at given position
1c53abe2 152 Int_t fN; //number of clusters
153 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
91162307 154 // indexes for cluster at given position z
155 // AliTPCclusterMI *fClustersArray; //
1c53abe2 156 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
157 Double_t fX; //X-coordinate of this row
2fc0c115 158
1c53abe2 159 };
160
161//**************** Internal tracker class **********************
162 class AliTPCSector {
163 public:
164 AliTPCSector() { fN=0; fRow = 0; }
165 ~AliTPCSector() { delete[] fRow; }
9996a03b 166 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
167 Int_t GetNRows() const { return fN; }
168 void Setup(const AliTPCParam *par, Int_t flag);
169 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
170 Double_t GetMaxY(Int_t l) const {
171 return GetX(l)*TMath::Tan(0.5*GetAlpha());
172 }
173 Double_t GetAlpha() const {return fAlpha;}
174 Double_t GetAlphaShift() const {return fAlphaShift;}
175 //Int_t GetFirst(){return fFirstRow;}
176 Int_t GetRowNumber(Double_t x) const;
177 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
178 Double_t GetPadPitchLength() const {return fPadPitchLength;}
179 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
180
1c53abe2 181 private:
9996a03b 182 AliTPCSector & operator=(const AliTPCSector & );
183 AliTPCSector(const AliTPCSector &/*s*/); //dummy copy contructor
184 Int_t fN; //number of pad rows
185 //Int_t fFirstRow; //offset
186 AliTPCRow *fRow; //array of pad rows
187 Double_t fAlpha; //opening angle
188 Double_t fAlphaShift; //shift angle;
189 Double_t fPadPitchWidth; //pad pitch width
190 Double_t fPadPitchLength; //pad pitch length
191 Double_t f1PadPitchLength; //pad pitch length
192 Double_t f2PadPitchLength; //pad pitch length
1c53abe2 193
1c53abe2 194 };
195
196 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
197 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
91162307 198 void SignShared(TObjArray * arr);
199
200 void RemoveUsed(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
51ad6848 201 void RemoveUsed2(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t minimal);
91162307 202 void RemoveDouble(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
203
47966a6d 204 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
205 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
91162307 206 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
c9427e08 207
1c53abe2 208private:
6c94f330 209 AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
210 AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
91162307 211 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
5afd7dbd 212 inline Bool_t IsActive(Int_t sec, Int_t row);
47966a6d 213 inline Double_t GetXrow(Int_t row) const;
214 inline Double_t GetMaxY(Int_t row) const;
215 inline Int_t GetRowNumber(Double_t x) const;
eea478d3 216 Int_t GetRowNumber(Double_t x[3]) const;
47966a6d 217 inline Double_t GetPadPitchLength(Double_t x) const;
218 inline Double_t GetPadPitchLength(Int_t row) const;
91162307 219
1c53abe2 220 Float_t GetSigmaY(AliTPCseed * seed);
221 Float_t GetSigmaZ(AliTPCseed * seed);
91162307 222 void GetShape(AliTPCseed * seed, Int_t row);
223
d26d9159 224 void ReadSeeds(AliESD *event, Int_t direction); //read seeds from the event
1c53abe2 225
91162307 226 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);
227 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
1627d1c4 228
91162307 229 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);
230
1c53abe2 231
91162307 232 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
d26d9159 233 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
eea478d3 234 AliTPCseed *ReSeed(AliTPCseed *t, Int_t r0, Bool_t forward); //reseed
91162307 235
236
237
238 AliTPCseed * ReSeed(AliTPCseed *t);
239 Int_t LoadInnerSectors();
240 Int_t LoadOuterSectors();
241 void UnsignClusters();
242 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
243
244 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
245 void Tracking(TObjArray * arr);
246 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
247 TObjArray * Tracking();
a395b09f 248 TObjArray * TrackingSpecial();
47966a6d 249 void SumTracks(TObjArray *arr1,TObjArray *arr2) const;
250 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
251 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
1c53abe2 252
4c57c771 253 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
91162307 254 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
1c53abe2 255
1c53abe2 256
1c53abe2 257 const Int_t fkNIS; //number of inner sectors
258 AliTPCSector *fInnerSec; //array of inner sectors;
259 const Int_t fkNOS; //number of outer sectors
260 AliTPCSector *fOuterSec; //array of outer sectors;
261
262 Int_t fN; //number of loaded sectors
263 AliTPCSector *fSectors; //pointer to loaded sectors;
91162307 264 //
265 TTree * fInput; // input tree with clusters
266 TTree * fOutput; // output tree with tracks
267 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
268 TTree * fTreeDebug; // output with a debug information about track
269 AliESD * fEvent; // output with esd tracks
270 Int_t fDebug; // debug option
271 Bool_t fNewIO; // indicated if we have data using New IO
1c53abe2 272 Int_t fNtracks; //current number of tracks
273 TObjArray *fSeeds; //array of track seeds
91162307 274 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
1c53abe2 275 // TObjArray * fTrackPointPool; // ! pool with track points
91162307 276 // TObjArray * fSeedPool; //! pool with seeds
277 Double_t fXRow[200]; // radius of the pad row
278 Double_t fYMax[200]; // max y for given pad row
279 Double_t fPadLength[200]; // max y for given pad row
1c53abe2 280 const AliTPCParam *fParam; //pointer to the parameters
81e97e0d 281 TTreeSRedirector *fDebugStreamer; //!debug streamer
91162307 282 ClassDef(AliTPCtrackerMI,1)
1c53abe2 283};
284
91162307 285
286AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
287{
288 //
289 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
290}
291
5afd7dbd 292Bool_t AliTPCtrackerMI::IsActive(Int_t sec, Int_t row)
293{
294 //
295 // check if the given sector row is active
296 //
297 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()].GetN()>0:fInnerSec[sec][row].GetN()>0;
298}
299
300
47966a6d 301Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
91162307 302 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
303 return fXRow[row];
304}
305
47966a6d 306Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
91162307 307 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
308 return fYMax[row];
309}
310
47966a6d 311Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
91162307 312{
313 //
314 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
315}
316
47966a6d 317Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
91162307 318{
319 //
320 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
321 //return fPadLength[row];
322}
323
47966a6d 324Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
91162307 325{
326 //
327 return fPadLength[row];
328}
329
330
331
1c53abe2 332#endif
333
334