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Implementation of reconstructors (T.Kuhr)
[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;
6d171107 144 Int_t Clusters2Tracks(const TFile */*in*/, TFile */*out*/) const {return 0;}
f8aae377 145 Int_t Clusters2Tracks();
91162307 146 virtual void CookLabel(AliTPCseed *t,Float_t wrong) const;
147
c9427e08 148 void RotateToLocal(AliTPCseed *seed);
91162307 149
150
151 Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0, Int_t step=1);
152 Int_t FollowProlongationFast(AliTPCseed& t, Int_t rf=0, Int_t step=1);
153
154 Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf);
155 Int_t FollowToNext(AliTPCseed& t, Int_t nr);
156 Int_t FollowToNextFast(AliTPCseed& t, Int_t nr);
157 Int_t UpdateClusters(AliTPCseed& t, Int_t nr);
158 Int_t FollowToNextCluster( AliTPCseed& t, Int_t nr);
159
6d171107 160 virtual Int_t PropagateBack (const TFile *, TFile *) const {return 0;}
91162307 161 Int_t PropagateBack(TObjArray * arr);
162 Int_t PropagateBack(AliESD * event);
163 Int_t PropagateBack(AliTPCseed *pt, Int_t row0, Int_t row1);
164 Int_t PropagateForward();
165 Int_t PropagateForward2(TObjArray * arr);
166
167 Int_t CheckKinkPoint(AliTPCseed*seed, Float_t th);
47966a6d 168 void SortTracks(TObjArray * arr, Int_t mode) const;
91162307 169
170
1c53abe2 171 virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
172 virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
173
b67e07dc 174 Double_t F1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
175 Double_t F1old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
176 Double_t F2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
177 Double_t F2old(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
91162307 178
b67e07dc 179 Double_t F3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
180 Double_t F3n(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2,
91162307 181 Double_t c);
182 Bool_t GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z);
183
b67e07dc 184 public:
1c53abe2 185//**************** Internal tracker class **********************
b67e07dc 186 class AliTPCSector;
1c53abe2 187 class AliTPCRow {
b67e07dc 188 friend class AliTPCtrackerMI;
189 friend class AliTPCtrackerMI::AliTPCSector;
1c53abe2 190 public:
b67e07dc 191 AliTPCRow();
2fc0c115 192 AliTPCRow(const AliTPCRow& r){;} //dummy copy constructor
193 AliTPCRow &operator=(const AliTPCRow& r){return *this;} //dummy assignment operator
1c53abe2 194 ~AliTPCRow();
195 void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
982aff31 196 void ResetClusters();
1c53abe2 197 operator int() const {return fN;}
91162307 198 Int_t GetN() const {return fN;}
1c53abe2 199 const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
200 UInt_t GetIndex(Int_t i) const {return fIndex[i];}
91162307 201 inline Int_t Find(Double_t z) const;
1627d1c4 202 AliTPCclusterMI * FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const;
91162307 203 AliTPCclusterMI * FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
204 AliTPCclusterMI * FindNearest3(Double_t y, Double_t z, Double_t roady, Double_t roadz, UInt_t & index) const;
205
1c53abe2 206 void SetX(Double_t x) {fX=x;}
207 Double_t GetX() const {return fX;}
6d171107 208private:
1c53abe2 209 Float_t fDeadZone; // the width of the dead zone
91162307 210 AliTPCclusterMI *fClusters1; //array with clusters 1
b67e07dc 211 Int_t fN1; //number of clusters on left side
91162307 212 AliTPCclusterMI *fClusters2; //array with clusters 2
b67e07dc 213 Int_t fN2; // number of clusters on right side of the TPC
214 Short_t fFastCluster[510]; //index of the nearest cluster at given position
1c53abe2 215 Int_t fN; //number of clusters
216 const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
91162307 217 // indexes for cluster at given position z
218 // AliTPCclusterMI *fClustersArray; //
1c53abe2 219 UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
220 Double_t fX; //X-coordinate of this row
2fc0c115 221
1c53abe2 222 };
223
224//**************** Internal tracker class **********************
225 class AliTPCSector {
b67e07dc 226 friend class AliTPCtrackerMI;
1c53abe2 227 public:
228 AliTPCSector() { fN=0; fRow = 0; }
229 ~AliTPCSector() { delete[] fRow; }
2fc0c115 230 AliTPCSector(const AliTPCSector &s){;} //dummy copy contructor
231 AliTPCSector& operator=(const AliTPCSector &s){return *this;}//dummy assignment operator
1c53abe2 232 AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
233 Int_t GetNRows() const { return fN; }
234 void Setup(const AliTPCParam *par, Int_t flag);
235 Double_t GetX(Int_t l) const {return fRow[l].GetX();}
236 Double_t GetMaxY(Int_t l) const {
237 return GetX(l)*TMath::Tan(0.5*GetAlpha());
238 }
239 Double_t GetAlpha() const {return fAlpha;}
240 Double_t GetAlphaShift() const {return fAlphaShift;}
91162307 241 //Int_t GetFirst(){return fFirstRow;}
47966a6d 242 Int_t GetRowNumber(Double_t x) const;
1c53abe2 243 Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
244 Double_t GetPadPitchLength() const {return fPadPitchLength;}
245 Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
246
247 private:
248 Int_t fN; //number of pad rows
91162307 249 //Int_t fFirstRow; //offset
1c53abe2 250 AliTPCRow *fRow; //array of pad rows
251 Double_t fAlpha; //opening angle
252 Double_t fAlphaShift; //shift angle;
253 Double_t fPadPitchWidth; //pad pitch width
254 Double_t fPadPitchLength; //pad pitch length
255 Double_t f1PadPitchLength; //pad pitch length
256 Double_t f2PadPitchLength; //pad pitch length
257
1c53abe2 258 };
259
260 Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
261 void SignShared(AliTPCseed * s1, AliTPCseed * s2);
91162307 262 void SignShared(TObjArray * arr);
263
264 void RemoveUsed(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
265 void RemoveDouble(TObjArray * arr, Float_t factor1, Float_t factor2, Int_t removalindex);
266
47966a6d 267 void StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
268 void StopNotActive(AliTPCseed * seed, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const;
91162307 269 Int_t AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluster, Float_t factor, Float_t cory=1., Float_t corz=1.);
c9427e08 270
1c53abe2 271private:
91162307 272 inline AliTPCRow &GetRow(Int_t sec, Int_t row);
47966a6d 273 inline Double_t GetXrow(Int_t row) const;
274 inline Double_t GetMaxY(Int_t row) const;
275 inline Int_t GetRowNumber(Double_t x) const;
276 inline Double_t GetPadPitchLength(Double_t x) const;
277 inline Double_t GetPadPitchLength(Int_t row) const;
91162307 278
1c53abe2 279 Float_t GetSigmaY(AliTPCseed * seed);
280 Float_t GetSigmaZ(AliTPCseed * seed);
91162307 281 void GetShape(AliTPCseed * seed, Int_t row);
282
d26d9159 283 void ReadSeeds(AliESD *event, Int_t direction); //read seeds from the event
1c53abe2 284
91162307 285 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);
286 void MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2, Float_t cuts[4], Float_t deltay = -1);
1627d1c4 287
91162307 288 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);
289
1c53abe2 290
91162307 291 AliTPCseed *MakeSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
d26d9159 292 AliTPCseed *ReSeed(AliTPCseed *t, Float_t r0, Float_t r1, Float_t r2); //reseed
91162307 293
294
295
296 AliTPCseed * ReSeed(AliTPCseed *t);
297 Int_t LoadInnerSectors();
298 Int_t LoadOuterSectors();
299 void UnsignClusters();
300 void SignClusters(TObjArray * arr, Float_t fnumber=3., Float_t fdensity=2.);
301
302 void ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast);
303 void Tracking(TObjArray * arr);
304 TObjArray * Tracking(Int_t seedtype, Int_t i1, Int_t i2, Float_t cuts[4], Float_t dy=-1, Int_t dsec=0);
305 TObjArray * Tracking();
47966a6d 306 void SumTracks(TObjArray *arr1,TObjArray *arr2) const;
307 void PrepareForBackProlongation(TObjArray * arr, Float_t fac) const;
308 void PrepareForProlongation(TObjArray * arr, Float_t fac) const;
1c53abe2 309
4c57c771 310 void SetSampledEdx(AliTPCseed */*t*/, Float_t /*q*/, Int_t /*i*/) {;}
91162307 311 Int_t UpdateTrack(AliTPCseed *t, Int_t accept); //update trackinfo
1c53abe2 312
1c53abe2 313
1c53abe2 314 const Int_t fkNIS; //number of inner sectors
315 AliTPCSector *fInnerSec; //array of inner sectors;
316 const Int_t fkNOS; //number of outer sectors
317 AliTPCSector *fOuterSec; //array of outer sectors;
318
319 Int_t fN; //number of loaded sectors
320 AliTPCSector *fSectors; //pointer to loaded sectors;
91162307 321 //
322 TTree * fInput; // input tree with clusters
323 TTree * fOutput; // output tree with tracks
324 TTree * fSeedTree; // output tree with seeds - filled in debug mode 1
325 TTree * fTreeDebug; // output with a debug information about track
326 AliESD * fEvent; // output with esd tracks
327 Int_t fDebug; // debug option
328 Bool_t fNewIO; // indicated if we have data using New IO
1c53abe2 329 Int_t fNtracks; //current number of tracks
330 TObjArray *fSeeds; //array of track seeds
91162307 331 Int_t fIteration; // indicate iteration - 0 - froward -1 back - 2forward - back->forward
1c53abe2 332 // TObjArray * fTrackPointPool; // ! pool with track points
91162307 333 // TObjArray * fSeedPool; //! pool with seeds
334 Double_t fXRow[200]; // radius of the pad row
335 Double_t fYMax[200]; // max y for given pad row
336 Double_t fPadLength[200]; // max y for given pad row
1c53abe2 337 const AliTPCParam *fParam; //pointer to the parameters
91162307 338 ClassDef(AliTPCtrackerMI,1)
1c53abe2 339};
340
91162307 341
342AliTPCtrackerMI::AliTPCRow & AliTPCtrackerMI::GetRow(Int_t sec, Int_t row)
343{
344 //
345 return (row>=fInnerSec->GetNRows()) ? fOuterSec[sec][row-fInnerSec->GetNRows()]:fInnerSec[sec][row];
346}
347
47966a6d 348Double_t AliTPCtrackerMI::GetXrow(Int_t row) const {
91162307 349 // return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetX(row-fInnerSec->GetNRows()):fInnerSec->GetX(row);
350 return fXRow[row];
351}
352
47966a6d 353Double_t AliTPCtrackerMI::GetMaxY(Int_t row) const {
91162307 354 //return (row>=fInnerSec->GetNRows()) ? fOuterSec->GetMaxY(row-fInnerSec->GetNRows()):fInnerSec->GetMaxY(row);
355 return fYMax[row];
356}
357
47966a6d 358Int_t AliTPCtrackerMI::GetRowNumber(Double_t x) const
91162307 359{
360 //
361 return (x>133.) ? fOuterSec->GetRowNumber(x)+fInnerSec->GetNRows():fInnerSec->GetRowNumber(x);
362}
363
47966a6d 364Double_t AliTPCtrackerMI::GetPadPitchLength(Double_t x) const
91162307 365{
366 //
367 return (x>133.) ? fOuterSec->GetPadPitchLength(x):fInnerSec->GetPadPitchLength(x);
368 //return fPadLength[row];
369}
370
47966a6d 371Double_t AliTPCtrackerMI::GetPadPitchLength(Int_t row) const
91162307 372{
373 //
374 return fPadLength[row];
375}
376
377
378
1c53abe2 379#endif
380
381