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81e97e0d 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16
17
18
19//-----------------------------------------------------------------
20// Implementation of the TPC seed class
21// This class is used by the AliTPCtrackerMI class
22// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
23//-----------------------------------------------------------------
24#include "TClonesArray.h"
2efc897f 25#include "TGraphErrors.h"
81e97e0d 26#include "AliTPCseed.h"
3f82c4f2 27#include "AliTPCReconstructor.h"
0a65832b 28#include "AliTPCClusterParam.h"
7cd8ac3f 29#include "AliTPCCalPad.h"
30#include "AliTPCCalROC.h"
37540068 31#include "AliTPCcalibDB.h"
d080e4a4 32#include "AliTPCParam.h"
5731b051 33#include "AliMathBase.h"
3af3fbc4 34#include "AliTPCTransform.h"
35#include "AliSplineFit.h"
36#include "AliCDBManager.h"
108a67db 37#include "AliTPCcalibDButil.h"
7cd8ac3f 38
81e97e0d 39
40ClassImp(AliTPCseed)
41
42
43
32fab534 44AliTPCseed::AliTPCseed():
45 AliTPCtrack(),
46 fEsd(0x0),
2928bdf0 47 fClusterOwner(kFALSE),
32fab534 48 fRow(0),
49 fSector(-1),
50 fRelativeSector(-1),
51 fCurrentSigmaY2(1e10),
52 fCurrentSigmaZ2(1e10),
e0e13b88 53 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
54 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 55 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
56 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
e0e13b88 57 //
32fab534 58 fErrorY2(1e10),
59 fErrorZ2(1e10),
60 fCurrentCluster(0x0),
61 fCurrentClusterIndex1(-1),
62 fInDead(kFALSE),
63 fIsSeeding(kFALSE),
64 fNoCluster(0),
65 fSort(0),
66 fBSigned(kFALSE),
67 fSeedType(0),
68 fSeed1(-1),
69 fSeed2(-1),
70 fMAngular(0),
19b00333 71 fCircular(0),
72 fClusterMap(159),
73 fSharedMap(159)
32fab534 74{
81e97e0d 75 //
5c09947e 76 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 77 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
78 for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0;
32fab534 79 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2;
80 for (Int_t i=0;i<4;i++) {
81 fDEDX[i] = 0.;
82 fSDEDX[i] = 1e10;
83 fNCDEDX[i] = 0;
84 }
85 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
bfb57b6c 86 // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
87 //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
88 fClusterMap.ResetAllBits(kFALSE);
89 fSharedMap.ResetAllBits(kFALSE);
90
81e97e0d 91}
32fab534 92
2928bdf0 93AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner):
32fab534 94 AliTPCtrack(s),
95 fEsd(0x0),
2928bdf0 96 fClusterOwner(clusterOwner),
32fab534 97 fRow(0),
98 fSector(-1),
99 fRelativeSector(-1),
c07cb486 100 fCurrentSigmaY2(-1),
101 fCurrentSigmaZ2(-1),
e0e13b88 102 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
103 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 104 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
105 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 106 fErrorY2(1e10),
107 fErrorZ2(1e10),
108 fCurrentCluster(0x0),
109 fCurrentClusterIndex1(-1),
110 fInDead(kFALSE),
111 fIsSeeding(kFALSE),
112 fNoCluster(0),
113 fSort(0),
114 fBSigned(kFALSE),
115 fSeedType(0),
116 fSeed1(-1),
117 fSeed2(-1),
118 fMAngular(0),
19b00333 119 fCircular(0),
120 fClusterMap(s.fClusterMap),
121 fSharedMap(s.fSharedMap)
32fab534 122{
81e97e0d 123 //---------------------
124 // dummy copy constructor
125 //-------------------------
2928bdf0 126 for (Int_t i=0;i<160;i++) {
127 fClusterPointer[i]=0;
128 if (fClusterOwner){
129 if (s.fClusterPointer[i])
130 fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i]));
131 }else{
132 fClusterPointer[i] = s.fClusterPointer[i];
133 }
134 fTrackPoints[i] = s.fTrackPoints[i];
135 }
81e97e0d 136 for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i];
5c09947e 137 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i];
138 for (Int_t i=0;i<4;i++) {
139 fDEDX[i] = s.fDEDX[i];
140 fSDEDX[i] = s.fSDEDX[i];
141 fNCDEDX[i] = s.fNCDEDX[i];
142 }
143 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i];
19b00333 144
81e97e0d 145}
5c09947e 146
147
32fab534 148AliTPCseed::AliTPCseed(const AliTPCtrack &t):
149 AliTPCtrack(t),
150 fEsd(0x0),
2928bdf0 151 fClusterOwner(kFALSE),
32fab534 152 fRow(0),
153 fSector(-1),
154 fRelativeSector(-1),
c07cb486 155 fCurrentSigmaY2(-1),
156 fCurrentSigmaZ2(-1),
e0e13b88 157 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
158 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 159 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
160 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 161 fErrorY2(1e10),
162 fErrorZ2(1e10),
163 fCurrentCluster(0x0),
164 fCurrentClusterIndex1(-1),
165 fInDead(kFALSE),
166 fIsSeeding(kFALSE),
167 fNoCluster(0),
168 fSort(0),
169 fBSigned(kFALSE),
170 fSeedType(0),
171 fSeed1(-1),
172 fSeed2(-1),
173 fMAngular(0),
19b00333 174 fCircular(0),
175 fClusterMap(159),
176 fSharedMap(159)
32fab534 177{
81e97e0d 178 //
32fab534 179 // Constructor from AliTPCtrack
180 //
181 fFirstPoint =0;
105b1b81 182 for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
81e97e0d 183 for (Int_t i=0;i<160;i++) {
184 fClusterPointer[i] = 0;
185 Int_t index = t.GetClusterIndex(i);
186 if (index>=-1){
187 SetClusterIndex2(i,index);
188 }
189 else{
190 SetClusterIndex2(i,-3);
191 }
192 }
32fab534 193 for (Int_t i=0;i<4;i++) {
194 fDEDX[i] = 0.;
195 fSDEDX[i] = 1e10;
196 fNCDEDX[i] = 0;
197 }
198 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
bfb57b6c 199
200 //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
201 //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
202 fClusterMap.ResetAllBits(kFALSE);
203 fSharedMap.ResetAllBits(kFALSE);
204
81e97e0d 205}
206
6c94f330 207AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5],
208 const Double_t cc[15], Int_t index):
209 AliTPCtrack(xr, alpha, xx, cc, index),
32fab534 210 fEsd(0x0),
2928bdf0 211 fClusterOwner(kFALSE),
32fab534 212 fRow(0),
213 fSector(-1),
214 fRelativeSector(-1),
c07cb486 215 fCurrentSigmaY2(-1),
216 fCurrentSigmaZ2(-1),
e0e13b88 217 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
218 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 219 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
220 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 221 fErrorY2(1e10),
222 fErrorZ2(1e10),
223 fCurrentCluster(0x0),
224 fCurrentClusterIndex1(-1),
225 fInDead(kFALSE),
226 fIsSeeding(kFALSE),
227 fNoCluster(0),
228 fSort(0),
229 fBSigned(kFALSE),
230 fSeedType(0),
231 fSeed1(-1),
232 fSeed2(-1),
233 fMAngular(0),
19b00333 234 fCircular(0),
235 fClusterMap(159),
236 fSharedMap(159)
32fab534 237{
238 //
239 // Constructor
81e97e0d 240 //
32fab534 241 fFirstPoint =0;
5c09947e 242 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 243 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
81e97e0d 244 for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
32fab534 245 for (Int_t i=0;i<4;i++) {
246 fDEDX[i] = 0.;
247 fSDEDX[i] = 1e10;
248 fNCDEDX[i] = 0;
249 }
250 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
81e97e0d 251}
252
253AliTPCseed::~AliTPCseed(){
254 //
255 // destructor
81e97e0d 256 fNoCluster =0;
2928bdf0 257 if (fClusterOwner){
258 for (Int_t icluster=0; icluster<160; icluster++){
259 delete fClusterPointer[icluster];
260 }
261 }
bfb57b6c 262
81e97e0d 263}
179c6296 264//_________________________________________________
316c6cd9 265AliTPCseed & AliTPCseed::operator=(const AliTPCseed &param)
179c6296 266{
267 //
316c6cd9 268 // assignment operator
179c6296 269 //
316c6cd9 270 if(this!=&param){
271 AliTPCtrack::operator=(param);
272 fEsd =param.fEsd;
273 for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed
274 fClusterOwner = param.fClusterOwner;
275 // leave out fPoint, they are also not copied in the copy ctor...
276 // but deleted in the dtor... strange...
316c6cd9 277 fRow = param.fRow;
278 fSector = param.fSector;
279 fRelativeSector = param.fRelativeSector;
280 fCurrentSigmaY2 = param.fCurrentSigmaY2;
281 fCurrentSigmaZ2 = param.fCurrentSigmaZ2;
282 fErrorY2 = param.fErrorY2;
283 fErrorZ2 = param.fErrorZ2;
284 fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed
285 fCurrentClusterIndex1 = param.fCurrentClusterIndex1;
286 fInDead = param.fInDead;
287 fIsSeeding = param.fIsSeeding;
288 fNoCluster = param.fNoCluster;
289 fSort = param.fSort;
290 fBSigned = param.fBSigned;
291 for(Int_t i = 0;i<4;++i){
292 fDEDX[i] = param.fDEDX[i];
293 fSDEDX[i] = param.fSDEDX[i];
294 fNCDEDX[i] = param.fNCDEDX[i];
295 }
296 for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i];
297
298 fSeedType = param.fSeedType;
299 fSeed1 = param.fSeed1;
300 fSeed2 = param.fSeed2;
301 for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i];
302 fMAngular = param.fMAngular;
303 fCircular = param.fCircular;
304 for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i];
305 fClusterMap = param.fClusterMap;
306 fSharedMap = param.fSharedMap;
307 }
179c6296 308 return (*this);
309}
310//____________________________________________________
81e97e0d 311AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i)
312{
313 //
314 //
315 return &fTrackPoints[i];
316}
317
81e97e0d 318
319
320Double_t AliTPCseed::GetDensityFirst(Int_t n)
321{
322 //
323 //
324 // return cluster for n rows bellow first point
325 Int_t nfoundable = 1;
326 Int_t nfound = 1;
327 for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){
328 Int_t index = GetClusterIndex2(i);
329 if (index!=-1) nfoundable++;
330 if (index>0) nfound++;
331 }
332 if (nfoundable<n) return 0;
333 return Double_t(nfound)/Double_t(nfoundable);
334
335}
336
337
338void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2)
339{
340 // get cluster stat. on given region
341 //
342 found = 0;
343 foundable = 0;
344 shared =0;
345 for (Int_t i=first;i<last; i++){
346 Int_t index = GetClusterIndex2(i);
347 if (index!=-1) foundable++;
6d493ea0 348 if (index&0x8000) continue;
81e97e0d 349 if (fClusterPointer[i]) {
350 found++;
351 }
352 else
353 continue;
354
355 if (fClusterPointer[i]->IsUsed(10)) {
356 shared++;
357 continue;
358 }
359 if (!plus2) continue; //take also neighborhoud
360 //
361 if ( (i>0) && fClusterPointer[i-1]){
362 if (fClusterPointer[i-1]->IsUsed(10)) {
363 shared++;
364 continue;
365 }
366 }
367 if ( fClusterPointer[i+1]){
368 if (fClusterPointer[i+1]->IsUsed(10)) {
369 shared++;
370 continue;
371 }
372 }
373
374 }
375 //if (shared>found){
376 //Error("AliTPCseed::GetClusterStatistic","problem\n");
377 //}
378}
379
380
381
382
383
384void AliTPCseed::Reset(Bool_t all)
385{
386 //
387 //
388 SetNumberOfClusters(0);
389 fNFoundable = 0;
390 SetChi2(0);
6c94f330 391 ResetCovariance(10.);
81e97e0d 392 /*
393 if (fTrackPoints){
394 for (Int_t i=0;i<8;i++){
395 delete [] fTrackPoints[i];
396 }
397 delete fTrackPoints;
398 fTrackPoints =0;
399 }
400 */
401
402 if (all){
403 for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3);
404 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
405 }
406
407}
408
409
410void AliTPCseed::Modify(Double_t factor)
411{
412
413 //------------------------------------------------------------------
414 //This function makes a track forget its history :)
415 //------------------------------------------------------------------
416 if (factor<=0) {
6c94f330 417 ResetCovariance(10.);
81e97e0d 418 return;
419 }
6c94f330 420 ResetCovariance(factor);
421
81e97e0d 422 SetNumberOfClusters(0);
423 fNFoundable =0;
424 SetChi2(0);
425 fRemoval = 0;
426 fCurrentSigmaY2 = 0.000005;
427 fCurrentSigmaZ2 = 0.000005;
428 fNoCluster = 0;
429 //fFirstPoint = 160;
430 //fLastPoint = 0;
431}
432
433
434
435
436Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const
437{
438 //-----------------------------------------------------------------
439 // This function find proloncation of a track to a reference plane x=xk.
440 // doesn't change internal state of the track
441 //-----------------------------------------------------------------
442
6c94f330 443 Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1;
81e97e0d 444
6c94f330 445 if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) {
81e97e0d 446 return 0;
447 }
448
449 // Double_t y1=fP0, z1=fP1;
60e55aee 450 Double_t c1=GetSnp(), r1=sqrt((1.-c1)*(1.+c1));
451 Double_t c2=c1 + GetC()*dx, r2=sqrt((1.-c2)*(1.+c2));
81e97e0d 452
6c94f330 453 y = GetY();
454 z = GetZ();
81e97e0d 455 //y += dx*(c1+c2)/(r1+r2);
456 //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3;
457
458 Double_t dy = dx*(c1+c2)/(r1+r2);
459 Double_t dz = 0;
460 //
6c94f330 461 Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1);
81e97e0d 462 /*
463 if (TMath::Abs(delta)>0.0001){
464 dz = fP3*TMath::ASin(delta)/fP4;
465 }else{
466 dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1);
467 }
468 */
469 // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4;
6c94f330 470 dz = GetTgl()*TMath::ASin(delta)/GetC();
81e97e0d 471 //
472 y+=dy;
473 z+=dz;
474
475
476 return 1;
477}
478
479
480//_____________________________________________________________________________
af32720d 481Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const
81e97e0d 482{
483 //-----------------------------------------------------------------
484 // This function calculates a predicted chi2 increment.
485 //-----------------------------------------------------------------
6c94f330 486 Double_t p[2]={c->GetY(), c->GetZ()};
487 Double_t cov[3]={fErrorY2, 0., fErrorZ2};
9c7b8249 488
489 Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX();
490 if (TMath::Abs(dx)>0){
491 Float_t ty = TMath::Tan(TMath::ASin(GetSnp()));
492 Float_t dy = dx*ty;
493 Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl();
494 p[0] = c->GetY()-dy;
495 p[1] = c->GetZ()-dz;
496 }
6c94f330 497 return AliExternalTrackParam::GetPredictedChi2(p,cov);
81e97e0d 498}
499
81e97e0d 500//_________________________________________________________________________________________
501
502
503Int_t AliTPCseed::Compare(const TObject *o) const {
504 //-----------------------------------------------------------------
505 // This function compares tracks according to the sector - for given sector according z
506 //-----------------------------------------------------------------
507 AliTPCseed *t=(AliTPCseed*)o;
6c94f330 508
81e97e0d 509 if (fSort == 0){
510 if (t->fRelativeSector>fRelativeSector) return -1;
511 if (t->fRelativeSector<fRelativeSector) return 1;
512 Double_t z2 = t->GetZ();
513 Double_t z1 = GetZ();
514 if (z2>z1) return 1;
515 if (z2<z1) return -1;
516 return 0;
517 }
518 else {
519 Float_t f2 =1;
6c23ffed 520 f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066);
81e97e0d 521 if (t->fBConstrain) f2=1.2;
522
523 Float_t f1 =1;
6c23ffed 524 f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066);
81e97e0d 525
526 if (fBConstrain) f1=1.2;
527
528 if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1;
529 else return +1;
530 }
531}
532
533
534
535
536//_____________________________________________________________________________
70e20dcf 537Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index)
6c94f330 538{
81e97e0d 539 //-----------------------------------------------------------------
540 // This function associates a cluster with this track.
541 //-----------------------------------------------------------------
81e97e0d 542 Int_t n=GetNumberOfClusters();
70e20dcf 543 Int_t idx=GetClusterIndex(n); // save the current cluster index
544
545 AliCluster cl(*c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2);
ca521f6c 546 Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX();
547 if (TMath::Abs(dx)>0){
548 Float_t ty = TMath::Tan(TMath::ASin(GetSnp()));
549 Float_t dy = dx*ty;
550 Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl();
551 cl.SetY(c->GetY()-dy);
552 cl.SetZ(c->GetZ()-dz);
553 }
554
70e20dcf 555 if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE;
e0e13b88 556
557 if (fCMeanSigmaY2p30<0){
558 fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30%
c07cb486 559 fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30%
560 fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5%
561 fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5%
e0e13b88 562 }
563 //
564 fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2();
c07cb486 565 fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2();
566 if (fCurrentSigmaY2>0){
567 fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2;
568 fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2;
569 }
e0e13b88 570
81e97e0d 571
70e20dcf 572 SetClusterIndex(n,idx); // restore the current cluster index
6c94f330 573 return kTRUE;
81e97e0d 574}
575
576
577
578//_____________________________________________________________________________
dc5cd41c 579Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t /* onlyused */) {
81e97e0d 580 //-----------------------------------------------------------------
581 // This funtion calculates dE/dX within the "low" and "up" cuts.
582 //-----------------------------------------------------------------
2cadb5d1 583 // CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal)
83afd539 584 AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
44a6a09e 585
83afd539 586 Int_t row0 = param->GetNRowLow();
587 Int_t row1 = row0+param->GetNRowUp1();
588 Int_t row2 = row1+param->GetNRowUp2();
44a6a09e 589 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
590 Int_t useTot = 0;
591 if (recoParam) useTot = (recoParam->GetUseTotCharge())? 0:1;
83afd539 592 //
593 //
594 //
2cadb5d1 595 fDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 0);
596 fDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 0);
597 fDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 0);
598 fDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 0);
83afd539 599 //
2cadb5d1 600 fSDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 1);
601 fSDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 1);
602 fSDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 1);
603 fSDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 1);
83afd539 604 //
2cadb5d1 605 fNCDEDX[0] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 2));
606 fNCDEDX[1] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,0 ,row0, 2));
607 fNCDEDX[2] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row0,row1, 2));
608 fNCDEDX[3] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row1,row2, 2));
81e97e0d 609
83afd539 610 SetdEdx(fDEDX[0]);
611 return fDEDX[0];
81e97e0d 612
ba5e52fb 613// return CookdEdxNorm(low,up,0,i1,i2,1,0,2);
4cc7ba77 614
615
ba5e52fb 616// Float_t amp[200];
617// Float_t angular[200];
618// Float_t weight[200];
619// Int_t index[200];
620// //Int_t nc = 0;
621// Float_t meanlog = 100.;
622
623// Float_t mean[4] = {0,0,0,0};
624// Float_t sigma[4] = {1000,1000,1000,1000};
625// Int_t nc[4] = {0,0,0,0};
626// Float_t norm[4] = {1000,1000,1000,1000};
627// //
628// //
629// fNShared =0;
630
631// Float_t gainGG = 1;
632// if (AliTPCcalibDB::Instance()->GetParameters()){
633// gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000.; //relative gas gain
634// }
635
636
637// for (Int_t of =0; of<4; of++){
638// for (Int_t i=of+i1;i<i2;i+=4)
639// {
640// Int_t clindex = fIndex[i];
641// if (clindex<0||clindex&0x8000) continue;
642
643// //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i);
644// AliTPCTrackerPoint * point = GetTrackPoint(i);
645// //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1);
646// //AliTPCTrackerPoint * pointp = 0;
647// //if (i<159) pointp = GetTrackPoint(i+1);
648
649// if (point==0) continue;
650// AliTPCclusterMI * cl = fClusterPointer[i];
651// if (cl==0) continue;
652// if (onlyused && (!cl->IsUsed(10))) continue;
653// if (cl->IsUsed(11)) {
654// fNShared++;
655// continue;
656// }
657// Int_t type = cl->GetType();
658// //if (point->fIsShared){
659// // fNShared++;
660// // continue;
661// //}
662// //if (pointm)
663// // if (pointm->fIsShared) continue;
664// //if (pointp)
665// // if (pointp->fIsShared) continue;
666
667// if (type<0) continue;
668// //if (type>10) continue;
669// //if (point->GetErrY()==0) continue;
670// //if (point->GetErrZ()==0) continue;
671
672// //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY();
673// //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ();
674// //if ((ddy*ddy+ddz*ddz)>10) continue;
675
676
677// // if (point->GetCPoint().GetMax()<5) continue;
678// if (cl->GetMax()<5) continue;
679// Float_t angley = point->GetAngleY();
680// Float_t anglez = point->GetAngleZ();
681
682// Float_t rsigmay2 = point->GetSigmaY();
683// Float_t rsigmaz2 = point->GetSigmaZ();
684// /*
685// Float_t ns = 1.;
686// if (pointm){
687// rsigmay += pointm->GetTPoint().GetSigmaY();
688// rsigmaz += pointm->GetTPoint().GetSigmaZ();
689// ns+=1.;
690// }
691// if (pointp){
692// rsigmay += pointp->GetTPoint().GetSigmaY();
693// rsigmaz += pointp->GetTPoint().GetSigmaZ();
694// ns+=1.;
695// }
696// rsigmay/=ns;
697// rsigmaz/=ns;
698// */
699
700// Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2);
701
702// Float_t ampc = 0; // normalization to the number of electrons
703// if (i>64){
704// // ampc = 1.*point->GetCPoint().GetMax();
705// ampc = 1.*cl->GetMax();
706// //ampc = 1.*point->GetCPoint().GetQ();
707// // AliTPCClusterPoint & p = point->GetCPoint();
708// // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5);
709// // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
710// //Float_t dz =
711// // TMath::Abs( Int_t(iz) - iz + 0.5);
712// //ampc *= 1.15*(1-0.3*dy);
713// //ampc *= 1.15*(1-0.3*dz);
714// // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ()));
715// //ampc *=zfactor;
716// }
717// else{
718// //ampc = 1.0*point->GetCPoint().GetMax();
719// ampc = 1.0*cl->GetMax();
720// //ampc = 1.0*point->GetCPoint().GetQ();
721// //AliTPCClusterPoint & p = point->GetCPoint();
722// // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5);
723// //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
724// //Float_t dz =
725// // TMath::Abs( Int_t(iz) - iz + 0.5);
726
727// //ampc *= 1.15*(1-0.3*dy);
728// //ampc *= 1.15*(1-0.3*dz);
729// // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ()));
730// //ampc *=zfactor;
731
732// }
733// ampc *= 2.0; // put mean value to channel 50
734// //ampc *= 0.58; // put mean value to channel 50
735// Float_t w = 1.;
736// // if (type>0) w = 1./(type/2.-0.5);
737// // Float_t z = TMath::Abs(cl->GetZ());
738// if (i<64) {
739// ampc /= 0.6;
740// //ampc /= (1+0.0008*z);
741// } else
742// if (i>128){
743// ampc /=1.5;
744// //ampc /= (1+0.0008*z);
745// }else{
746// //ampc /= (1+0.0008*z);
747// }
81e97e0d 748
ba5e52fb 749// if (type<0) { //amp at the border - lower weight
750// // w*= 2.;
81e97e0d 751
ba5e52fb 752// continue;
753// }
754// if (rsigma>1.5) ampc/=1.3; // if big backround
755// amp[nc[of]] = ampc;
756// amp[nc[of]] /=gainGG;
757// angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez);
758// weight[nc[of]] = w;
759// nc[of]++;
760// }
81e97e0d 761
ba5e52fb 762// TMath::Sort(nc[of],amp,index,kFALSE);
763// Float_t sumamp=0;
764// Float_t sumamp2=0;
765// Float_t sumw=0;
766// //meanlog = amp[index[Int_t(nc[of]*0.33)]];
767// meanlog = 50;
768// for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){
769// Float_t ampl = amp[index[i]]/angular[index[i]];
770// ampl = meanlog*TMath::Log(1.+ampl/meanlog);
771// //
772// sumw += weight[index[i]];
773// sumamp += weight[index[i]]*ampl;
774// sumamp2 += weight[index[i]]*ampl*ampl;
775// norm[of] += angular[index[i]]*weight[index[i]];
776// }
777// if (sumw<1){
778// SetdEdx(0);
779// }
780// else {
781// norm[of] /= sumw;
782// mean[of] = sumamp/sumw;
783// sigma[of] = sumamp2/sumw-mean[of]*mean[of];
784// if (sigma[of]>0.1)
785// sigma[of] = TMath::Sqrt(sigma[of]);
786// else
787// sigma[of] = 1000;
81e97e0d 788
ba5e52fb 789// mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog;
790// //mean *=(1-0.02*(sigma/(mean*0.17)-1.));
791// //mean *=(1-0.1*(norm-1.));
792// }
793// }
794
795// Float_t dedx =0;
796// fSdEdx =0;
797// fMAngular =0;
798// // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1));
799// // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1));
81e97e0d 800
801
ba5e52fb 802// // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/
803// // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1])));
804
805// Int_t norm2 = 0;
806// Int_t norm3 = 0;
807// for (Int_t i =0;i<4;i++){
808// if (nc[i]>2&&nc[i]<1000){
809// dedx += mean[i] *nc[i];
810// fSdEdx += sigma[i]*(nc[i]-2);
811// fMAngular += norm[i] *nc[i];
812// norm2 += nc[i];
813// norm3 += nc[i]-2;
814// }
815// fDEDX[i] = mean[i];
816// fSDEDX[i] = sigma[i];
817// fNCDEDX[i]= nc[i];
818// }
819
820// if (norm3>0){
821// dedx /=norm2;
822// fSdEdx /=norm3;
823// fMAngular/=norm2;
824// }
825// else{
826// SetdEdx(0);
827// return 0;
828// }
829// // Float_t dedx1 =dedx;
830// /*
831// dedx =0;
832// for (Int_t i =0;i<4;i++){
833// if (nc[i]>2&&nc[i]<1000){
834// mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.));
835// dedx += mean[i] *nc[i];
836// }
837// fDEDX[i] = mean[i];
838// }
839// dedx /= norm2;
840// */
81e97e0d 841
842
ba5e52fb 843// SetdEdx(dedx);
844// return dedx;
81e97e0d 845}
81e97e0d 846
847void AliTPCseed::CookPID()
848{
849 //
850 // cook PID information according dEdx
851 //
852 Double_t fRange = 10.;
853 Double_t fRes = 0.1;
854 Double_t fMIP = 47.;
855 //
856 Int_t ns=AliPID::kSPECIES;
857 Double_t sumr =0;
858 for (Int_t j=0; j<ns; j++) {
859 Double_t mass=AliPID::ParticleMass(j);
6c94f330 860 Double_t mom=GetP();
81e97e0d 861 Double_t dedx=fdEdx/fMIP;
5731b051 862 Double_t bethe=AliMathBase::BetheBlochAleph(mom/mass);
81e97e0d 863 Double_t sigma=fRes*bethe;
864 if (sigma>0.001){
865 if (TMath::Abs(dedx-bethe) > fRange*sigma) {
866 fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
867 sumr+=fTPCr[j];
868 continue;
869 }
870 fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
871 sumr+=fTPCr[j];
872 }
873 else{
874 fTPCr[j]=1.;
875 sumr+=fTPCr[j];
876 }
877 }
878 for (Int_t j=0; j<ns; j++) {
879 fTPCr[j]/=sumr; //normalize
880 }
881}
882
6c94f330 883Double_t AliTPCseed::GetYat(Double_t xk) const {
884//-----------------------------------------------------------------
885// This function calculates the Y-coordinate of a track at the plane x=xk.
886//-----------------------------------------------------------------
887 if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06
60e55aee 888 Double_t c1=GetSnp(), r1=TMath::Sqrt((1.-c1)*(1.+c1));
6c94f330 889 Double_t c2=c1+GetC()*(xk-GetX());
890 if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0;
60e55aee 891 Double_t r2=TMath::Sqrt((1.-c2)*(1.+c2));
6c94f330 892 return GetY() + (xk-GetX())*(c1+c2)/(r1+r2);
893}
894
19b00333 895void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state)
896{
897 fClusterMap[ibit] = state;
898}
899Bool_t AliTPCseed::GetClusterMapBit(int ibit)
900{
901 return fClusterMap[ibit];
902}
903void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state)
904{
905 fSharedMap[ibit] = state;
906}
907Bool_t AliTPCseed::GetSharedMapBit(int ibit)
908{
909 return fSharedMap[ibit];
910}
eb02f63a 911
912
0a65832b 913
914
915
8a92e133 916Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Bool_t shapeNorm,Int_t posNorm, Int_t padNorm, Int_t returnVal){
0a65832b 917
918 //
919 // calculates dedx using the cluster
920 // low - up specify trunc mean range - default form 0-0.7
8076baa0 921 // type - 1 - max charge or 0- total charge in cluster
922 // //2- max no corr 3- total+ correction
0a65832b 923 // i1-i2 - the pad-row range used for calculation
ba5e52fb 924 // shapeNorm - kTRUE -taken from OCDB
925 //
926 // posNorm - usage of pos normalization
83afd539 927 // padNorm - pad type normalization
928 // returnVal - 0 return mean
929 // - 1 return RMS
930 // - 2 return number of clusters
931 //
0a65832b 932 // normalization parametrization taken from AliTPCClusterParam
933 //
ba5e52fb 934 AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
935 AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
936 if (!parcl) return 0;
937 if (!param) return 0;
83afd539 938 Int_t row0 = param->GetNRowLow();
939 Int_t row1 = row0+param->GetNRowUp1();
940
0a65832b 941 Float_t amp[160];
942 Int_t indexes[160];
943 Int_t ncl=0;
944 //
945 //
ba5e52fb 946 Float_t gainGG = 1; // gas gain factor -always enabled
947 Float_t gainPad = 1; // gain map - used always
83afd539 948 Float_t corrShape = 1; // correction due angular effect, diffusion and electron attachment
ba5e52fb 949 Float_t corrPos = 1; // local position correction - if posNorm enabled
950 Float_t corrPadType = 1; // pad type correction - if padNorm enabled
951 Float_t corrNorm = 1; // normalization factor - set Q to channel 50
952 //
953 //
954 //
4cc7ba77 955 if (AliTPCcalibDB::Instance()->GetParameters()){
ba5e52fb 956 gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain
4cc7ba77 957 }
958
0a65832b 959 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
4cc7ba77 960 const Float_t kedgey =3.;
0a65832b 961 //
7cd8ac3f 962 //
0a65832b 963 for (Int_t irow=i1; irow<i2; irow++){
964 AliTPCclusterMI* cluster = GetClusterPointer(irow);
965 if (!cluster) continue;
966 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
8076baa0 967 Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
ba5e52fb 968 Int_t ipad= 0;
83afd539 969 if (irow>=row0) ipad=1;
970 if (irow>=row1) ipad=2;
ba5e52fb 971 //
972 //
973 //
974 AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor();
975 if (gainMap) {
976 //
977 // Get gainPad - pad by pad calibration
978 //
d6920632 979 Float_t factor = 1;
980 AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector());
83afd539 981 if (irow < row0) { // IROC
ba5e52fb 982 factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()));
d6920632 983 } else { // OROC
83afd539 984 factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad()));
d6920632 985 }
ba5e52fb 986 if (factor>0.5) gainPad=factor;
7cd8ac3f 987 }
ba5e52fb 988 //
989 //do position and angular normalization
990 //
991 if (shapeNorm){
992 if (type<=1){
993 //
994 AliTPCTrackerPoint * point = GetTrackPoint(irow);
995 Float_t ty = TMath::Abs(point->GetAngleY());
83afd539 996 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
ba5e52fb 997
998 Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
999 corrShape = parcl->Qnorm(ipad,type,dr,ty,tz);
1000 }
0a65832b 1001 }
ba5e52fb 1002
8a92e133 1003 if (posNorm>0){
8e1dcdda 1004 //
ba5e52fb 1005 // Do position normalization - relative distance to
1006 // center of pad- time bin
1007 // Work in progress
022a2383 1008 // corrPos = parcl->QnormPos(ipad,type, cluster->GetPad(),
1009 // cluster->GetTimeBin(), cluster->GetZ(),
1010 // cluster->GetSigmaY2(),cluster->GetSigmaZ2(),
1011 // cluster->GetMax(),cluster->GetQ());
8a92e133 1012 // scaled response function
1013 Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
1014 Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
1015 //
1016
022a2383 1017 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1018 Float_t ty = TMath::Abs(point->GetAngleY());
1019 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
1020
1021 if (type==1) corrPos =
1022 parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
8a92e133 1023 cluster->GetTimeBin(),ty,tz,yres0,zres0,0.4);
022a2383 1024 if (type==0) corrPos =
1025 parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
8a92e133 1026 cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,0.4);
1027 if (posNorm==3){
1028 Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
1029 Double_t signtgl = (cluster->GetZ()*point->GetAngleZ()>0)? 1:-1;
1030 Double_t p2 = TMath::Abs(TMath::Sin(TMath::ATan(ty)));
1031 Float_t corrHis = parcl->QnormHis(ipad,type,dr,p2,TMath::Abs(point->GetAngleZ())*signtgl);
1032 if (corrHis>0) corrPos*=corrHis;
1033 }
1034
8e1dcdda 1035 }
1036
ba5e52fb 1037 if (padNorm==1){
1038 //taken from OCDB
798017c7 1039 if (type==0 && parcl->QpadTnorm()) corrPadType = (*parcl->QpadTnorm())[ipad];
1040 if (type==1 && parcl->QpadMnorm()) corrPadType = (*parcl->QpadMnorm())[ipad];
022a2383 1041
2fc9608f 1042 }
ba5e52fb 1043 if (padNorm==2){
1044 corrPadType =param->GetPadPitchLength(cluster->GetDetector(),cluster->GetRow());
1045 //use hardwired - temp fix
1046 if (type==0) corrNorm=3.;
1047 if (type==1) corrNorm=1.;
1048 }
1049 //
1050 amp[ncl]=charge;
1051 amp[ncl]/=gainGG;
1052 amp[ncl]/=gainPad;
1053 amp[ncl]/=corrShape;
1054 amp[ncl]/=corrPadType;
1055 amp[ncl]/=corrPos;
1056 amp[ncl]/=corrNorm;
1057 //
0a65832b 1058 ncl++;
1059 }
8076baa0 1060
0a65832b 1061 if (type>3) return ncl;
1062 TMath::Sort(ncl,amp, indexes, kFALSE);
1063
8076baa0 1064 if (ncl<10) return 0;
0a65832b 1065
1066 Float_t suma=0;
83afd539 1067 Float_t suma2=0;
0a65832b 1068 Float_t sumn=0;
1069 Int_t icl0=TMath::Nint(ncl*low);
1070 Int_t icl1=TMath::Nint(ncl*up);
1071 for (Int_t icl=icl0; icl<icl1;icl++){
1072 suma+=amp[indexes[icl]];
83afd539 1073 suma2+=amp[indexes[icl]]*amp[indexes[icl]];
0a65832b 1074 sumn++;
1075 }
83afd539 1076 Float_t mean =suma/sumn;
1077 Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
3af3fbc4 1078 //
1079 // do time-dependent correction for pressure and temperature variations
1080 UInt_t runNumber = 1;
1081 Float_t corrTimeGain = 1;
1082 AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
e5e80ff9 1083 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
1084 if (trans && recoParam->GetUseGainCorrectionTime()>0) {
3af3fbc4 1085 runNumber = trans->GetCurrentRunNumber();
e5e80ff9 1086 //AliTPCcalibDB::Instance()->SetRun(runNumber);
a2c3785e 1087 TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
3af3fbc4 1088 if (timeGainSplines) {
1089 UInt_t time = trans->GetCurrentTimeStamp();
1090 AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
1091 AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
1092 if (fitMIP) {
108a67db 1093 corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time);/*fitMIP->Eval(time);*/
3af3fbc4 1094 } else {
108a67db 1095 if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time);/*fitFPcosmic->Eval(time);*/
3af3fbc4 1096 }
1097 }
1098 }
1099 mean /= corrTimeGain;
1100 rms /= corrTimeGain;
1101 //
83afd539 1102 if (returnVal==1) return rms;
8a92e133 1103 if (returnVal==2) return ncl;
1104 return mean;
1105}
1106
2efc897f 1107Float_t AliTPCseed::CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal, Int_t rowThres){
8a92e133 1108
1109 //
1110 // calculates dedx using the cluster
1111 // low - up specify trunc mean range - default form 0-0.7
1112 // type - 1 - max charge or 0- total charge in cluster
1113 // //2- max no corr 3- total+ correction
1114 // i1-i2 - the pad-row range used for calculation
1115 //
1116 // posNorm - usage of pos normalization
1117 // returnVal - 0 return mean
1118 // - 1 return RMS
1119 // - 2 return number of clusters
2efc897f 1120 //
1121 // rowThres - number of rows before and after given pad row to check for clusters below threshold
8a92e133 1122 //
1123 // normalization parametrization taken from AliTPCClusterParam
1124 //
1125 AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
1126 AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
1127 if (!parcl) return 0;
1128 if (!param) return 0;
1129 Int_t row0 = param->GetNRowLow();
1130 Int_t row1 = row0+param->GetNRowUp1();
1131
1132 Float_t amp[160];
1133 Int_t indexes[160];
1134 Int_t ncl=0;
2efc897f 1135 Int_t nclBelowThr = 0; // counts number of clusters below threshold
8a92e133 1136 //
1137 //
1138 Float_t gainGG = 1; // gas gain factor -always enabled
1139 Float_t gainPad = 1; // gain map - used always
1140 Float_t corrPos = 1; // local position correction - if posNorm enabled
8a92e133 1141 //
1142 //
1143 //
1144 if (AliTPCcalibDB::Instance()->GetParameters()){
1145 gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain
1146 }
649fcc43 1147 //
1148 // extract time-dependent correction for pressure and temperature variations
1149 //
1150 UInt_t runNumber = 1;
1151 Float_t corrTimeGain = 1;
1152 TObjArray * timeGainSplines = 0x0;
1153 TGraphErrors * grPadEqual = 0x0;
1154 //
1155 AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
1156 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
6d64657a 1157 //
1158 if (recoParam->GetNeighborRowsDedx() == 0) rowThres = 0;
1159 //
649fcc43 1160 if (trans) {
2efc897f 1161 runNumber = trans->GetCurrentRunNumber();
1162 //AliTPCcalibDB::Instance()->SetRun(runNumber);
1163 timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
1164 if (timeGainSplines && recoParam->GetUseGainCorrectionTime()>0) {
1165 UInt_t time = trans->GetCurrentTimeStamp();
1166 AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
1167 AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
1168 if (fitMIP) {
1169 corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time); /*fitMIP->Eval(time);*/
649fcc43 1170 } else {
2efc897f 1171 if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time); /*fitFPcosmic->Eval(time); */
1172 }
649fcc43 1173 //
1174 if (type==1) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQMAX_PADREGIONGAIN_BEAM_ALL");
1175 if (type==0) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQTOT_PADREGIONGAIN_BEAM_ALL");
2efc897f 1176 }
649fcc43 1177 }
2efc897f 1178
1179 const Float_t kClusterShapeCut = 1.5; // IMPPRTANT TO DO: move value to AliTPCRecoParam
8a92e133 1180 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
1181 const Float_t kedgey =3.;
1182 //
1183 //
1184 for (Int_t irow=i1; irow<i2; irow++){
1185 AliTPCclusterMI* cluster = GetClusterPointer(irow);
736a5826 1186 if (!cluster && irow > 1 && irow < 157) {
2efc897f 1187 Bool_t isClBefore = kFALSE;
1188 Bool_t isClAfter = kFALSE;
1189 for(Int_t ithres = 1; ithres <= rowThres; ithres++) {
1190 AliTPCclusterMI * clusterBefore = GetClusterPointer(irow - ithres);
1191 if (clusterBefore) isClBefore = kTRUE;
1192 AliTPCclusterMI * clusterAfter = GetClusterPointer(irow + ithres);
1193 if (clusterAfter) isClAfter = kTRUE;
1194 }
1195 if (isClBefore && isClAfter) nclBelowThr++;
2efc897f 1196 }
736a5826 1197 if (!cluster) continue;
2efc897f 1198 //
1199 //
8a92e133 1200 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
2efc897f 1201 //
1202 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1203 if (point==0) continue;
1204 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1205 if (rsigmay > kClusterShapeCut) continue;
1206 //
1207 if (cluster->IsUsed(11)) continue; // remove shared clusters for PbPb
1208 //
8a92e133 1209 Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
1210 Int_t ipad= 0;
1211 if (irow>=row0) ipad=1;
1212 if (irow>=row1) ipad=2;
1213 //
1214 //
1215 //
1216 AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor();
1217 if (gainMap) {
1218 //
1219 // Get gainPad - pad by pad calibration
1220 //
1221 Float_t factor = 1;
1222 AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector());
1223 if (irow < row0) { // IROC
1224 factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()));
1225 } else { // OROC
1226 factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad()));
1227 }
2efc897f 1228 if (factor>0.3) gainPad=factor;
8a92e133 1229 }
8a92e133 1230 //
1231 // Do position normalization - relative distance to
1232 // center of pad- time bin
1233
8a92e133 1234 Float_t ty = TMath::Abs(point->GetAngleY());
1235 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
1236 Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
1237 Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
1238
1239 yres0 *=parcl->GetQnormCorr(ipad, type,0);
1240 zres0 *=parcl->GetQnormCorr(ipad, type,1);
1241 Float_t effLength=parcl->GetQnormCorr(ipad, type,4)*0.5;
1242 Float_t effDiff =(parcl->GetQnormCorr(ipad, type,2)+parcl->GetQnormCorr(ipad, type,3))*0.5;
1243 //
1244 if (type==1) {
1245 corrPos = parcl->GetQnormCorr(ipad, type,5)*
1246 parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
1247 cluster->GetTimeBin(),ty,tz,yres0,zres0,effLength,effDiff);
1248 Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
1249 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
1250 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
1251 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
1252 //
1253 }
1254 if (type==0) {
1255 corrPos = parcl->GetQnormCorr(ipad, type,5)*
1256 parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
1257 cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,effLength,effDiff);
1258
1259 Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
1260 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
1261 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
1262 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
1263 //
1264 }
2efc897f 1265 //
1266 // pad region equalization outside of cluster param
1267 //
1268 Float_t gainEqualPadRegion = 1;
649fcc43 1269 if (grPadEqual) gainEqualPadRegion = grPadEqual->Eval(ipad);
8a92e133 1270 //
1271 amp[ncl]=charge;
1272 amp[ncl]/=gainGG;
1273 amp[ncl]/=gainPad;
1274 amp[ncl]/=corrPos;
2efc897f 1275 amp[ncl]/=gainEqualPadRegion;
8a92e133 1276 //
1277 ncl++;
1278 }
1279
1280 if (type>3) return ncl;
1281 TMath::Sort(ncl,amp, indexes, kFALSE);
2efc897f 1282 //
8a92e133 1283 if (ncl<10) return 0;
2efc897f 1284 //
1285 Double_t * ampWithBelow = new Double_t[ncl + nclBelowThr];
1286 for(Int_t iCl = 0; iCl < ncl + nclBelowThr; iCl++) {
1287 if (iCl < nclBelowThr) {
1288 ampWithBelow[iCl] = amp[indexes[0]];
1289 } else {
1290 ampWithBelow[iCl] = amp[indexes[iCl - nclBelowThr]];
1291 }
1292 }
1293 //printf("DEBUG: %i shit %f", nclBelowThr, amp[indexes[0]]);
1294 //
8a92e133 1295 Float_t suma=0;
1296 Float_t suma2=0;
1297 Float_t sumn=0;
2efc897f 1298 Int_t icl0=TMath::Nint((ncl + nclBelowThr)*low);
1299 Int_t icl1=TMath::Nint((ncl + nclBelowThr)*up);
8a92e133 1300 for (Int_t icl=icl0; icl<icl1;icl++){
2efc897f 1301 suma+=ampWithBelow[icl];
1302 suma2+=ampWithBelow[icl]*ampWithBelow[icl];
8a92e133 1303 sumn++;
1304 }
e483cb69 1305 delete [] ampWithBelow;
8a92e133 1306 Float_t mean =suma/sumn;
1307 Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
3af3fbc4 1308 //
3af3fbc4 1309 mean /= corrTimeGain;
1310 rms /= corrTimeGain;
1311 //
8a92e133 1312 if (returnVal==1) return rms;
83afd539 1313 if (returnVal==2) return ncl;
1314 return mean;
0a65832b 1315}
1316
83afd539 1317
0a65832b 1318
1319
eb02f63a 1320Float_t AliTPCseed::CookShape(Int_t type){
1321 //
1322 //
1323 //
1324 //-----------------------------------------------------------------
1325 // This funtion calculates dE/dX within the "low" and "up" cuts.
1326 //-----------------------------------------------------------------
1327 Float_t means=0;
1328 Float_t meanc=0;
1329 for (Int_t i =0; i<160;i++) {
1330 AliTPCTrackerPoint * point = GetTrackPoint(i);
1331 if (point==0) continue;
1332
1333 AliTPCclusterMI * cl = fClusterPointer[i];
1334 if (cl==0) continue;
1335
1336 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1337 Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ());
1338 Float_t rsigma = (rsigmay+rsigmaz)*0.5;
1339 if (type==0) means+=rsigma;
1340 if (type==1) means+=rsigmay;
1341 if (type==2) means+=rsigmaz;
1342 meanc++;
1343 }
1344 Float_t mean = (meanc>0)? means/meanc:0;
1345 return mean;
1346}
87e92a27 1347
1348
1349
1350Int_t AliTPCseed::RefitTrack(AliTPCseed *seed, AliExternalTrackParam * parin, AliExternalTrackParam * parout){
1351 //
1352 // Refit the track
1353 // return value - number of used clusters
1354 //
1355 //
1356 const Int_t kMinNcl =10;
1357 AliTPCseed *track=new AliTPCseed(*seed);
1358 Int_t sector=-1;
1359 // reset covariance
1360 //
1361 Double_t covar[15];
1362 for (Int_t i=0;i<15;i++) covar[i]=0;
1363 covar[0]=10.*10.;
1364 covar[2]=10.*10.;
1365 covar[5]=10.*10./(64.*64.);
1366 covar[9]=10.*10./(64.*64.);
1367 covar[14]=1*1;
1368 //
1369
1370 Float_t xmin=1000, xmax=-10000;
1371 Int_t imin=158, imax=0;
1372 for (Int_t i=0;i<160;i++) {
1373 AliTPCclusterMI *c=track->GetClusterPointer(i);
1374 if (!c) continue;
1375 if (sector<0) sector = c->GetDetector();
1376 if (c->GetX()<xmin) xmin=c->GetX();
1377 if (c->GetX()>xmax) xmax=c->GetX();
1378 if (i<imin) imin=i;
1379 if (i>imax) imax=i;
1380 }
1381 if(imax-imin<kMinNcl) {
1382 delete track;
1383 return 0 ;
1384 }
1385 // Not succes to rotate
1386 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1387 delete track;
1388 return 0;
1389 }
1390 //
1391 //
1392 // fit from inner to outer row
1393 //
1394 AliExternalTrackParam paramIn;
1395 AliExternalTrackParam paramOut;
1396 Bool_t isOK=kTRUE;
be34cb88 1397 Int_t ncl=0;
87e92a27 1398 //
1399 //
1400 //
1401 for (Int_t i=imin; i<=imax; i++){
1402 AliTPCclusterMI *c=track->GetClusterPointer(i);
1403 if (!c) continue;
1404 // if (RejectCluster(c,track)) continue;
be34cb88 1405 sector = (c->GetDetector()%18);
1406 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1407 //continue;
1408 }
87e92a27 1409 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1410 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1411 if (!track->PropagateTo(r[0])) {
1412 isOK=kFALSE;
87e92a27 1413 }
1414 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1415 }
1416 if (!isOK) { delete track; return 0;}
1417 track->AddCovariance(covar);
1418 //
1419 //
1420 //
1421 for (Int_t i=imax; i>=imin; i--){
1422 AliTPCclusterMI *c=track->GetClusterPointer(i);
1423 if (!c) continue;
1424 //if (RejectCluster(c,track)) continue;
be34cb88 1425 sector = (c->GetDetector()%18);
1426 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1427 //continue;
1428 }
87e92a27 1429 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1430 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1431 if (!track->PropagateTo(r[0])) {
1432 isOK=kFALSE;
87e92a27 1433 }
1434 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1435 }
be34cb88 1436 //if (!isOK) { delete track; return 0;}
87e92a27 1437 paramIn = *track;
1438 track->AddCovariance(covar);
1439 //
1440 //
1441 for (Int_t i=imin; i<=imax; i++){
1442 AliTPCclusterMI *c=track->GetClusterPointer(i);
1443 if (!c) continue;
be34cb88 1444 sector = (c->GetDetector()%18);
1445 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1446 //continue;
1447 }
1448 ncl++;
87e92a27 1449 //if (RejectCluster(c,track)) continue;
1450 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1451 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1452 if (!track->PropagateTo(r[0])) {
1453 isOK=kFALSE;
87e92a27 1454 }
1455 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1456 }
be34cb88 1457 //if (!isOK) { delete track; return 0;}
87e92a27 1458 paramOut=*track;
87e92a27 1459 //
1460 //
1461 //
1462 if (parin) (*parin)=paramIn;
1463 if (parout) (*parout)=paramOut;
6e23caff 1464 delete track;
be34cb88 1465 return ncl;
87e92a27 1466}
1467
1468
1469
1470Bool_t AliTPCseed::RefitTrack(AliTPCseed* /*seed*/, Bool_t /*out*/){
1471 //
1472 //
1473 //
1474 return kFALSE;
1475}
3247d397 1476
1477
1478
1479
1480
1481
1482void AliTPCseed::GetError(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
1483 Double_t& erry, Double_t &errz)
1484{
1485 //
1486 // Get cluster error at given position
1487 //
1488 AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam();
1489 Double_t tany,tanz;
1490 Double_t snp1=param->GetSnp();
60e55aee 1491 tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1492 //
1493 Double_t tgl1=param->GetTgl();
60e55aee 1494 tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1495 //
1496 Int_t padSize = 0; // short pads
1497 if (cluster->GetDetector() >= 36) {
1498 padSize = 1; // medium pads
1499 if (cluster->GetRow() > 63) padSize = 2; // long pads
1500 }
1501
1502 erry = clusterParam->GetError0Par( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany) );
1503 errz = clusterParam->GetError0Par( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) );
1504}
1505
1506
1507void AliTPCseed::GetShape(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
1508 Double_t& rmsy, Double_t &rmsz)
1509{
1510 //
1511 // Get cluster error at given position
1512 //
1513 AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam();
1514 Double_t tany,tanz;
1515 Double_t snp1=param->GetSnp();
60e55aee 1516 tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1517 //
1518 Double_t tgl1=param->GetTgl();
60e55aee 1519 tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1520 //
1521 Int_t padSize = 0; // short pads
1522 if (cluster->GetDetector() >= 36) {
1523 padSize = 1; // medium pads
1524 if (cluster->GetRow() > 63) padSize = 2; // long pads
1525 }
1526
1527 rmsy = clusterParam->GetRMSQ( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany), TMath::Abs(cluster->GetMax()) );
1528 rmsz = clusterParam->GetRMSQ( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ,TMath::Abs(cluster->GetMax()));
1529}
ba5e52fb 1530
1531
1532
1533Double_t AliTPCseed::GetQCorrGeom(Float_t ty, Float_t tz){
1534 //Geoetrical
1535 //ty - tangent in local y direction
1536 //tz - tangent
1537 //
1538 Float_t norm=TMath::Sqrt(1+ty*ty+tz*tz);
1539 return norm;
1540}
1541
83afd539 1542Double_t AliTPCseed::GetQCorrShape(Int_t ipad, Int_t type,Float_t z, Float_t ty, Float_t tz, Float_t /*q*/, Float_t /*thr*/){
ba5e52fb 1543 //
1544 // Q normalization
1545 //
1546 // return value = Q Normalization factor
1547 // Normalization - 1 - shape factor part for full drift
1548 // 1 - electron attachment for 0 drift
1549
1550 // Input parameters:
1551 //
1552 // ipad - 0 short pad
1553 // 1 medium pad
1554 // 2 long pad
1555 //
1556 // type - 0 qmax
1557 // - 1 qtot
1558 //
1559 //z - z position (-250,250 cm)
1560 //ty - tangent in local y direction
1561 //tz - tangent
1562 //
1563
1564 AliTPCClusterParam * paramCl = AliTPCcalibDB::Instance()->GetClusterParam();
1565 AliTPCParam * paramTPC = AliTPCcalibDB::Instance()->GetParameters();
1566
1567 if (!paramCl) return 1;
1568 //
1569 Double_t dr = 250.-TMath::Abs(z);
1570 Double_t sy = paramCl->GetRMS0( 0,ipad, dr, TMath::Abs(ty));
1571 Double_t sy0= paramCl->GetRMS0(0,ipad, 250, 0);
1572 Double_t sz = paramCl->GetRMS0( 1,ipad, dr, TMath::Abs(tz));
1573 Double_t sz0= paramCl->GetRMS0(1,ipad, 250, 0);
1574
1575 Double_t sfactorMax = TMath::Sqrt(sy0*sz0/(sy*sz));
1576
1577
1578 Double_t dt = 1000000*(dr/paramTPC->GetDriftV()); //time in microsecond
1579 Double_t attProb = TMath::Exp(-paramTPC->GetAttCoef()*paramTPC->GetOxyCont()*dt);
1580 //
1581 //
1582 if (type==0) return sfactorMax*attProb;
1583
1584 return attProb;
1585
1586
1587}
1588