New version of the V0 finder (M.Ivanov)
[u/mrichter/AliRoot.git] / TPC / AliTPCtrackerMI.h
CommitLineData
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"
20
b67e07dc 21
1c53abe2 22class TFile;
23class AliTPCParam;
24class AliTPCseed;
25class AliTPCclusterMI;
91162307 26class AliTPCTrackerPoint;
27class AliESD;
28class TTree;
eea478d3 29class AliESDkink;
81e97e0d 30class TTreeSRedirector;
1c53abe2 31
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);
9996a03b 39 AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
40 AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
b67e07dc 41 virtual ~AliTPCtrackerMI();
91162307 42 //
d26d9159 43 void SetIteration(Int_t iteration){fIteration = iteration;}
44 virtual Int_t Clusters2Tracks (AliESD *esd);
45 virtual Int_t RefitInward (AliESD *esd);
46 virtual Int_t LoadClusters (TTree * tree);
47 Int_t LoadClusters();
48 void UnloadClusters();
49
91162307 50 //
51 void SetIO(); //set default IO from folders
52 void SetIO(TTree * input, TTree * output, AliESD * event);
d26d9159 53 void FillESD(TObjArray* arr);
91162307 54 void WriteTracks();
d26d9159 55 void WriteTracks(TTree * tree);
91162307 56 void DeleteSeeds();
57 void SetDebug(Int_t debug){ fDebug = debug;}
51ad6848 58 void FindKinks(TObjArray * array, AliESD * esd);
81e97e0d 59 void FindV0s(TObjArray * array, AliESD * esd);
51ad6848 60 void UpdateKinkQualityM(AliTPCseed * seed);
eea478d3 61 void UpdateKinkQualityD(AliTPCseed * seed);
62 Int_t CheckKinkPoint(AliTPCseed*seed, AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
63 Int_t RefitKink(AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &kink);
1c53abe2 64 Int_t ReadSeeds(const TFile *in);
91162307 65 TObjArray * GetSeeds(){return fSeeds;}
66 //
67 AliCluster * GetCluster (int) const {return 0;}
1c53abe2 68 AliTPCclusterMI *GetClusterMI(Int_t index) const;
f8aae377 69 Int_t Clusters2Tracks();
91162307 70 virtual void CookLabel(AliTPCseed *t,Float_t wrong) const;
51ad6848 71 virtual Int_t CookLabel(AliTPCseed *t,Float_t wrong, Int_t first,Int_t last ) const;
91162307 72
c9427e08 73 void RotateToLocal(AliTPCseed *seed);
91162307 74
75
76 Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0, Int_t step=1);
77 Int_t FollowProlongationFast(AliTPCseed& t, Int_t rf=0, Int_t step=1);
78
79 Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf);
80 Int_t FollowToNext(AliTPCseed& t, Int_t nr);
81 Int_t FollowToNextFast(AliTPCseed& t, Int_t nr);
82 Int_t UpdateClusters(AliTPCseed& t, Int_t nr);
83 Int_t FollowToNextCluster( AliTPCseed& t, Int_t nr);
84
91162307 85 Int_t PropagateBack(TObjArray * arr);
86 Int_t PropagateBack(AliESD * event);
87 Int_t PropagateBack(AliTPCseed *pt, Int_t row0, Int_t row1);
88 Int_t PropagateForward();
89 Int_t PropagateForward2(TObjArray * arr);
90
47966a6d 91 void SortTracks(TObjArray * arr, Int_t mode) const;
91162307 92
93
1c53abe2 94 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
95 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
96
b67e07dc 97 Double_t F1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
98 Double_t F1old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
99 Double_t F2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
100 Double_t F2old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
91162307 101
b67e07dc 102 Double_t F3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
103 Double_t F3n(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2,
91162307 104 Double_t c);
105 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
106
b67e07dc 107 public:
1c53abe2 108//**************** Internal tracker class **********************
b67e07dc 109 class AliTPCSector;
1c53abe2 110 class AliTPCRow {
b67e07dc 111 friend class AliTPCtrackerMI;
112 friend class AliTPCtrackerMI::AliTPCSector;
1c53abe2 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;
125 AliTPCclusterMI * FindNearest3(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
126
1c53abe2 127 void SetX(Double_t x) {fX=x;}
128 Double_t GetX() const {return fX;}
6d171107 129private:
9996a03b 130 AliTPCRow & operator=(const AliTPCRow & );
131 AliTPCRow(const AliTPCRow& /*r*/); //dummy copy constructor
1c53abe2 132 Float_t fDeadZone; // the width of the dead zone
91162307 133 AliTPCclusterMI *fClusters1; //array with clusters 1
b67e07dc 134 Int_t fN1; //number of clusters on left side
91162307 135 AliTPCclusterMI *fClusters2; //array with clusters 2
b67e07dc 136 Int_t fN2; // number of clusters on right side of the TPC
137 Short_t fFastCluster[510]; //index of the nearest cluster at given position
1c53abe2 138 Int_t fN; //number of clusters
139 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
91162307 140 // indexes for cluster at given position z
141 // AliTPCclusterMI *fClustersArray; //
1c53abe2 142 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
143 Double_t fX; //X-coordinate of this row
2fc0c115 144
1c53abe2 145 };
146
147//**************** Internal tracker class **********************
148 class AliTPCSector {
b67e07dc 149 friend class AliTPCtrackerMI;
1c53abe2 150 public:
151 AliTPCSector() { fN=0; fRow = 0; }
152 ~AliTPCSector() { delete[] fRow; }
9996a03b 153 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
154 Int_t GetNRows() const { return fN; }
155 void Setup(const AliTPCParam *par, Int_t flag);
156 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
157 Double_t GetMaxY(Int_t l) const {
158 return GetX(l)*TMath::Tan(0.5*GetAlpha());
159 }
160 Double_t GetAlpha() const {return fAlpha;}
161 Double_t GetAlphaShift() const {return fAlphaShift;}
162 //Int_t GetFirst(){return fFirstRow;}
163 Int_t GetRowNumber(Double_t x) const;
164 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
165 Double_t GetPadPitchLength() const {return fPadPitchLength;}
166 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
167
1c53abe2 168 private:
9996a03b 169 AliTPCSector & operator=(const AliTPCSector & );
170 AliTPCSector(const AliTPCSector &/*s*/); //dummy copy contructor
171 Int_t fN; //number of pad rows
172 //Int_t fFirstRow; //offset
173 AliTPCRow *fRow; //array of pad rows
174 Double_t fAlpha; //opening angle
175 Double_t fAlphaShift; //shift angle;
176 Double_t fPadPitchWidth; //pad pitch width
177 Double_t fPadPitchLength; //pad pitch length
178 Double_t f1PadPitchLength; //pad pitch length
179 Double_t f2PadPitchLength; //pad pitch length
1c53abe2 180
1c53abe2 181 };
182
183 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
184 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
91162307 185 void SignShared(TObjArray * arr);
186
187 void RemoveUsed(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
51ad6848 188 void RemoveUsed2(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t minimal);
91162307 189 void RemoveDouble(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
190
47966a6d 191 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
192 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
91162307 193 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
c9427e08 194
1c53abe2 195private:
91162307 196 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
47966a6d 197 inline Double_t GetXrow(Int_t row) const;
198 inline Double_t GetMaxY(Int_t row) const;
199 inline Int_t GetRowNumber(Double_t x) const;
eea478d3 200 Int_t GetRowNumber(Double_t x[3]) const;
47966a6d 201 inline Double_t GetPadPitchLength(Double_t x) const;
202 inline Double_t GetPadPitchLength(Int_t row) const;
91162307 203
1c53abe2 204 Float_t GetSigmaY(AliTPCseed * seed);
205 Float_t GetSigmaZ(AliTPCseed * seed);
91162307 206 void GetShape(AliTPCseed * seed, Int_t row);
207
d26d9159 208 void ReadSeeds(AliESD *event, Int_t direction); //read seeds from the event
1c53abe2 209
91162307 210 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);
211 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
1627d1c4 212
91162307 213 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);
214
1c53abe2 215
91162307 216 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
d26d9159 217 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
eea478d3 218 AliTPCseed *ReSeed(AliTPCseed *t, Int_t r0, Bool_t forward); //reseed
91162307 219
220
221
222 AliTPCseed * ReSeed(AliTPCseed *t);
223 Int_t LoadInnerSectors();
224 Int_t LoadOuterSectors();
225 void UnsignClusters();
226 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
227
228 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
229 void Tracking(TObjArray * arr);
230 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
231 TObjArray * Tracking();
47966a6d 232 void SumTracks(TObjArray *arr1,TObjArray *arr2) const;
233 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
234 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
1c53abe2 235
4c57c771 236 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
91162307 237 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
1c53abe2 238
1c53abe2 239
1c53abe2 240 const Int_t fkNIS; //number of inner sectors
241 AliTPCSector *fInnerSec; //array of inner sectors;
242 const Int_t fkNOS; //number of outer sectors
243 AliTPCSector *fOuterSec; //array of outer sectors;
244
245 Int_t fN; //number of loaded sectors
246 AliTPCSector *fSectors; //pointer to loaded sectors;
91162307 247 //
248 TTree * fInput; // input tree with clusters
249 TTree * fOutput; // output tree with tracks
250 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
251 TTree * fTreeDebug; // output with a debug information about track
252 AliESD * fEvent; // output with esd tracks
253 Int_t fDebug; // debug option
254 Bool_t fNewIO; // indicated if we have data using New IO
1c53abe2 255 Int_t fNtracks; //current number of tracks
256 TObjArray *fSeeds; //array of track seeds
91162307 257 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
1c53abe2 258 // TObjArray * fTrackPointPool; // ! pool with track points
91162307 259 // TObjArray * fSeedPool; //! pool with seeds
260 Double_t fXRow[200]; // radius of the pad row
261 Double_t fYMax[200]; // max y for given pad row
262 Double_t fPadLength[200]; // max y for given pad row
1c53abe2 263 const AliTPCParam *fParam; //pointer to the parameters
81e97e0d 264 TTreeSRedirector *fDebugStreamer; //!debug streamer
91162307 265 ClassDef(AliTPCtrackerMI,1)
1c53abe2 266};
267
91162307 268
269AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
270{
271 //
272 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
273}
274
47966a6d 275Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
91162307 276 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
277 return fXRow[row];
278}
279
47966a6d 280Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
91162307 281 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
282 return fYMax[row];
283}
284
47966a6d 285Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
91162307 286{
287 //
288 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
289}
290
47966a6d 291Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
91162307 292{
293 //
294 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
295 //return fPadLength[row];
296}
297
47966a6d 298Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
91162307 299{
300 //
301 return fPadLength[row];
302}
303
304
305
1c53abe2 306#endif
307
308