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[u/mrichter/AliRoot.git] / TPC / AliTPCtrackerMI.h
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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
16#include <TError.h>
17
1c53abe2 18#include "AliTracker.h"
19#include "AliTPCtrack.h"
cd4a3564 20#include "AliComplexCluster.h"
b67e07dc 21
1c53abe2 22class TFile;
23class AliTPCParam;
24class AliTPCseed;
25class AliTPCclusterMI;
91162307 26class AliTPCTrackerPoint;
27class AliESD;
28class TTree;
1c53abe2 29
30class AliTPCseed : public AliTPCtrack {
b67e07dc 31 friend class AliTPCtrackerMI;
d26d9159 32 public:
1c53abe2 33 AliTPCseed();
34 virtual ~AliTPCseed();
35 AliTPCseed(const AliTPCtrack &t);
2fc0c115 36 AliTPCseed(const AliTPCseed &s);
1c53abe2 37 AliTPCseed(const AliKalmanTrack &t, Double_t a);
38 Int_t Compare(const TObject *o) const;
91162307 39 void Reset(Bool_t all = kTRUE);
1c53abe2 40 Int_t GetProlongation(Double_t xr, Double_t &y, Double_t & z) const;
41 virtual Double_t GetPredictedChi2(const AliTPCclusterMI *cluster) const;
42 virtual Int_t Update(const AliTPCclusterMI* c, Double_t chi2, UInt_t i);
91162307 43 AliTPCTrackerPoint * GetTrackPoint(Int_t i);
1c53abe2 44 void RebuildSeed(); // rebuild seed to be ready for storing
45 AliTPCseed(UInt_t index, const Double_t xx[5],
46 const Double_t cc[15], Double_t xr, Double_t alpha);
91162307 47
48 Double_t GetDensityFirst(Int_t n);
b67e07dc 49 Double_t GetSigma2C() const {return fC44;};
91162307 50 void GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2);
51
52 void Modify(Double_t factor);
b67e07dc 53 void SetClusterIndex2(Int_t row, Int_t index) {
91162307 54 fIndex[row] = index;
55 }
b67e07dc 56 Int_t GetClusterIndex2(Int_t row) const {
91162307 57 return fIndex[row];
1c53abe2 58 }
b67e07dc 59 Int_t GetClusterSector(Int_t row) const {
e325274c 60 Int_t pica = -1;
61 if (fIndex[row]>=0) pica = ((fIndex[row]&0xff000000)>>24);
62 return pica;
91162307 63 }
64
1c53abe2 65 void SetErrorY2(Float_t sy2){fErrorY2=sy2;}
66 void SetErrorZ2(Float_t sz2){fErrorZ2=sz2;}
91162307 67 void CookdEdx(Double_t low=0.05, Double_t up=0.70, Int_t i1=0, Int_t i2=159, Bool_t onlyused = kFALSE);
68 // void CookdEdx2(Double_t low=0.05, Double_t up=0.70);
b67e07dc 69 Bool_t IsActive() const { return !(fRemoval);}
1c53abe2 70 void Desactivate(Int_t reason){ fRemoval = reason;}
91162307 71 //
72 //
b67e07dc 73 private:
6d171107 74 AliTPCseed & operator = (const AliTPCseed &)
75 {::Fatal("= operator","Not Implemented\n");return *this;}
47966a6d 76 AliESDtrack * fEsd; //!
91162307 77 AliTPCclusterMI* fClusterPointer[160]; //! array of cluster pointers -
78 TClonesArray * fPoints; // array with points along the track
1c53abe2 79 TClonesArray * fEPoints; // array with exact points - calculated in special macro not used in tracking
91162307 80 //---CURRENT VALUES
c9427e08 81 Int_t fRow; //!current row number
1c53abe2 82 Int_t fSector; //!current sector number
91162307 83 Int_t fRelativeSector; //! index of current relative sector
84 Float_t fCurrentSigmaY2; //!expected current cluster sigma Y
85 Float_t fCurrentSigmaZ2; //!expected current cluster sigma Z
86 Float_t fErrorY2; //!sigma of current cluster
87 Float_t fErrorZ2; //!sigma of current cluster
1c53abe2 88 AliTPCclusterMI * fCurrentCluster; //!pointer to the current cluster for prolongation
89 Int_t fCurrentClusterIndex1; //! index of the current cluster
91162307 90 Bool_t fInDead; //! indicate if the track is in dead zone
91 Bool_t fIsSeeding; //!indicates if it is proces of seeading
92 Int_t fNoCluster; //!indicates number of rows without clusters
93 Int_t fSort; //!indicate criteria for sorting
94 Bool_t fBSigned; //indicates that clusters of this trackes are signed to be used
95 //
96 //
1c53abe2 97 Float_t fDEDX[4]; // dedx according padrows
98 Float_t fSDEDX[4]; // sdedx according padrows
99 Int_t fNCDEDX[4]; // number of clusters for dedx measurment
91162307 100 //
101 Int_t fSeedType; //seeding type
102 Int_t fSeed1; //first row for seeding
103 Int_t fSeed2; //last row for seeding
104 Int_t fOverlapLabels[12]; //track labels and the length of the overlap
91162307 105 Float_t fMAngular; // mean angular factor
106 AliTPCTrackerPoint fTrackPoints[160]; //!track points - array track points
1c53abe2 107
108 ClassDef(AliTPCseed,1)
109};
110
111
112
113
114class AliTPCtrackerMI : public AliTracker {
115public:
d26d9159 116 AliTPCtrackerMI():AliTracker(),fkNIS(0),fkNOS(0) {
117 fInnerSec=fOuterSec=0; fSeeds=0;
118 }
119 AliTPCtrackerMI(const AliTPCParam *par);
2fc0c115 120 AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
121 AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
b67e07dc 122 virtual ~AliTPCtrackerMI();
91162307 123 //
d26d9159 124 void SetIteration(Int_t iteration){fIteration = iteration;}
125 virtual Int_t Clusters2Tracks (AliESD *esd);
126 virtual Int_t RefitInward (AliESD *esd);
127 virtual Int_t LoadClusters (TTree * tree);
128 Int_t LoadClusters();
129 void UnloadClusters();
130
91162307 131 //
132 void SetIO(); //set default IO from folders
133 void SetIO(TTree * input, TTree * output, AliESD * event);
d26d9159 134 void FillESD(TObjArray* arr);
91162307 135 void WriteTracks();
d26d9159 136 void WriteTracks(TTree * tree);
91162307 137 void DeleteSeeds();
138 void SetDebug(Int_t debug){ fDebug = debug;}
1c53abe2 139 Int_t ReadSeeds(const TFile *in);
91162307 140 TObjArray * GetSeeds(){return fSeeds;}
141 //
142 AliCluster * GetCluster (int) const {return 0;}
1c53abe2 143 AliTPCclusterMI *GetClusterMI(Int_t index) const;
f8aae377 144 Int_t Clusters2Tracks();
91162307 145 virtual void CookLabel(AliTPCseed *t,Float_t wrong) const;
146
c9427e08 147 void RotateToLocal(AliTPCseed *seed);
91162307 148
149
150 Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0, Int_t step=1);
151 Int_t FollowProlongationFast(AliTPCseed& t, Int_t rf=0, Int_t step=1);
152
153 Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf);
154 Int_t FollowToNext(AliTPCseed& t, Int_t nr);
155 Int_t FollowToNextFast(AliTPCseed& t, Int_t nr);
156 Int_t UpdateClusters(AliTPCseed& t, Int_t nr);
157 Int_t FollowToNextCluster( AliTPCseed& t, Int_t nr);
158
91162307 159 Int_t PropagateBack(TObjArray * arr);
160 Int_t PropagateBack(AliESD * event);
161 Int_t PropagateBack(AliTPCseed *pt, Int_t row0, Int_t row1);
162 Int_t PropagateForward();
163 Int_t PropagateForward2(TObjArray * arr);
164
165 Int_t CheckKinkPoint(AliTPCseed*seed, Float_t th);
47966a6d 166 void SortTracks(TObjArray * arr, Int_t mode) const;
91162307 167
168
1c53abe2 169 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
170 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
171
b67e07dc 172 Double_t F1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
173 Double_t F1old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
174 Double_t F2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
175 Double_t F2old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
91162307 176
b67e07dc 177 Double_t F3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
178 Double_t F3n(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2,
91162307 179 Double_t c);
180 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
181
b67e07dc 182 public:
1c53abe2 183//**************** Internal tracker class **********************
b67e07dc 184 class AliTPCSector;
1c53abe2 185 class AliTPCRow {
b67e07dc 186 friend class AliTPCtrackerMI;
187 friend class AliTPCtrackerMI::AliTPCSector;
1c53abe2 188 public:
b67e07dc 189 AliTPCRow();
2fc0c115 190 AliTPCRow(const AliTPCRow& r){;} //dummy copy constructor
191 AliTPCRow &operator=(const AliTPCRow& r){return *this;} //dummy assignment operator
1c53abe2 192 ~AliTPCRow();
193 void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
982aff31 194 void ResetClusters();
1c53abe2 195 operator int() const {return fN;}
91162307 196 Int_t GetN() const {return fN;}
1c53abe2 197 const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
198 UInt_t GetIndex(Int_t i) const {return fIndex[i];}
91162307 199 inline Int_t Find(Double_t z) const;
1627d1c4 200 AliTPCclusterMI * FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const;
91162307 201 AliTPCclusterMI * FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
202 AliTPCclusterMI * FindNearest3(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
203
1c53abe2 204 void SetX(Double_t x) {fX=x;}
205 Double_t GetX() const {return fX;}
6d171107 206private:
1c53abe2 207 Float_t fDeadZone; // the width of the dead zone
91162307 208 AliTPCclusterMI *fClusters1; //array with clusters 1
b67e07dc 209 Int_t fN1; //number of clusters on left side
91162307 210 AliTPCclusterMI *fClusters2; //array with clusters 2
b67e07dc 211 Int_t fN2; // number of clusters on right side of the TPC
212 Short_t fFastCluster[510]; //index of the nearest cluster at given position
1c53abe2 213 Int_t fN; //number of clusters
214 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
91162307 215 // indexes for cluster at given position z
216 // AliTPCclusterMI *fClustersArray; //
1c53abe2 217 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
218 Double_t fX; //X-coordinate of this row
2fc0c115 219
1c53abe2 220 };
221
222//**************** Internal tracker class **********************
223 class AliTPCSector {
b67e07dc 224 friend class AliTPCtrackerMI;
1c53abe2 225 public:
226 AliTPCSector() { fN=0; fRow = 0; }
227 ~AliTPCSector() { delete[] fRow; }
2fc0c115 228 AliTPCSector(const AliTPCSector &s){;} //dummy copy contructor
229 AliTPCSector& operator=(const AliTPCSector &s){return *this;}//dummy assignment operator
1c53abe2 230 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
231 Int_t GetNRows() const { return fN; }
232 void Setup(const AliTPCParam *par, Int_t flag);
233 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
234 Double_t GetMaxY(Int_t l) const {
235 return GetX(l)*TMath::Tan(0.5*GetAlpha());
236 }
237 Double_t GetAlpha() const {return fAlpha;}
238 Double_t GetAlphaShift() const {return fAlphaShift;}
91162307 239 //Int_t GetFirst(){return fFirstRow;}
47966a6d 240 Int_t GetRowNumber(Double_t x) const;
1c53abe2 241 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
242 Double_t GetPadPitchLength() const {return fPadPitchLength;}
243 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
244
245 private:
246 Int_t fN; //number of pad rows
91162307 247 //Int_t fFirstRow; //offset
1c53abe2 248 AliTPCRow *fRow; //array of pad rows
249 Double_t fAlpha; //opening angle
250 Double_t fAlphaShift; //shift angle;
251 Double_t fPadPitchWidth; //pad pitch width
252 Double_t fPadPitchLength; //pad pitch length
253 Double_t f1PadPitchLength; //pad pitch length
254 Double_t f2PadPitchLength; //pad pitch length
255
1c53abe2 256 };
257
258 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
259 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
91162307 260 void SignShared(TObjArray * arr);
261
262 void RemoveUsed(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
263 void RemoveDouble(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
264
47966a6d 265 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
266 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
91162307 267 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
c9427e08 268
1c53abe2 269private:
91162307 270 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
47966a6d 271 inline Double_t GetXrow(Int_t row) const;
272 inline Double_t GetMaxY(Int_t row) const;
273 inline Int_t GetRowNumber(Double_t x) const;
274 inline Double_t GetPadPitchLength(Double_t x) const;
275 inline Double_t GetPadPitchLength(Int_t row) const;
91162307 276
1c53abe2 277 Float_t GetSigmaY(AliTPCseed * seed);
278 Float_t GetSigmaZ(AliTPCseed * seed);
91162307 279 void GetShape(AliTPCseed * seed, Int_t row);
280
d26d9159 281 void ReadSeeds(AliESD *event, Int_t direction); //read seeds from the event
1c53abe2 282
91162307 283 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);
284 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
1627d1c4 285
91162307 286 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);
287
1c53abe2 288
91162307 289 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
d26d9159 290 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
91162307 291
292
293
294 AliTPCseed * ReSeed(AliTPCseed *t);
295 Int_t LoadInnerSectors();
296 Int_t LoadOuterSectors();
297 void UnsignClusters();
298 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
299
300 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
301 void Tracking(TObjArray * arr);
302 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
303 TObjArray * Tracking();
47966a6d 304 void SumTracks(TObjArray *arr1,TObjArray *arr2) const;
305 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
306 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
1c53abe2 307
4c57c771 308 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
91162307 309 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
1c53abe2 310
1c53abe2 311
1c53abe2 312 const Int_t fkNIS; //number of inner sectors
313 AliTPCSector *fInnerSec; //array of inner sectors;
314 const Int_t fkNOS; //number of outer sectors
315 AliTPCSector *fOuterSec; //array of outer sectors;
316
317 Int_t fN; //number of loaded sectors
318 AliTPCSector *fSectors; //pointer to loaded sectors;
91162307 319 //
320 TTree * fInput; // input tree with clusters
321 TTree * fOutput; // output tree with tracks
322 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
323 TTree * fTreeDebug; // output with a debug information about track
324 AliESD * fEvent; // output with esd tracks
325 Int_t fDebug; // debug option
326 Bool_t fNewIO; // indicated if we have data using New IO
1c53abe2 327 Int_t fNtracks; //current number of tracks
328 TObjArray *fSeeds; //array of track seeds
91162307 329 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
1c53abe2 330 // TObjArray * fTrackPointPool; // ! pool with track points
91162307 331 // TObjArray * fSeedPool; //! pool with seeds
332 Double_t fXRow[200]; // radius of the pad row
333 Double_t fYMax[200]; // max y for given pad row
334 Double_t fPadLength[200]; // max y for given pad row
1c53abe2 335 const AliTPCParam *fParam; //pointer to the parameters
91162307 336 ClassDef(AliTPCtrackerMI,1)
1c53abe2 337};
338
91162307 339
340AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
341{
342 //
343 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
344}
345
47966a6d 346Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
91162307 347 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
348 return fXRow[row];
349}
350
47966a6d 351Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
91162307 352 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
353 return fYMax[row];
354}
355
47966a6d 356Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
91162307 357{
358 //
359 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
360}
361
47966a6d 362Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
91162307 363{
364 //
365 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
366 //return fPadLength[row];
367}
368
47966a6d 369Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
91162307 370{
371 //
372 return fPadLength[row];
373}
374
375
376
1c53abe2 377#endif
378
379