Adding smoothing code to select otimal smoothing parameters
[u/mrichter/AliRoot.git] / TPC / Rec / AliTPCseed.cxx
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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//-----------------------------------------------------------------
28273e26 20//
81e97e0d 21// Implementation of the TPC seed class
829455ad 22// This class is used by the AliTPCtracker class
81e97e0d 23// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
24//-----------------------------------------------------------------
19e8ad6c 25#include <TVectorF.h>
81e97e0d 26#include "TClonesArray.h"
2efc897f 27#include "TGraphErrors.h"
81e97e0d 28#include "AliTPCseed.h"
3f82c4f2 29#include "AliTPCReconstructor.h"
0a65832b 30#include "AliTPCClusterParam.h"
7cd8ac3f 31#include "AliTPCCalPad.h"
32#include "AliTPCCalROC.h"
37540068 33#include "AliTPCcalibDB.h"
d080e4a4 34#include "AliTPCParam.h"
5731b051 35#include "AliMathBase.h"
3af3fbc4 36#include "AliTPCTransform.h"
37#include "AliSplineFit.h"
38#include "AliCDBManager.h"
108a67db 39#include "AliTPCcalibDButil.h"
efbb6a56 40#include <AliCTPTimeParams.h>
7cd8ac3f 41
81e97e0d 42
43ClassImp(AliTPCseed)
44
45
46
32fab534 47AliTPCseed::AliTPCseed():
48 AliTPCtrack(),
49 fEsd(0x0),
2928bdf0 50 fClusterOwner(kFALSE),
32fab534 51 fRow(0),
52 fSector(-1),
53 fRelativeSector(-1),
54 fCurrentSigmaY2(1e10),
55 fCurrentSigmaZ2(1e10),
e0e13b88 56 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
57 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 58 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
59 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
e0e13b88 60 //
32fab534 61 fErrorY2(1e10),
62 fErrorZ2(1e10),
63 fCurrentCluster(0x0),
64 fCurrentClusterIndex1(-1),
65 fInDead(kFALSE),
66 fIsSeeding(kFALSE),
67 fNoCluster(0),
68 fSort(0),
69 fBSigned(kFALSE),
70 fSeedType(0),
71 fSeed1(-1),
72 fSeed2(-1),
73 fMAngular(0),
ddfbc51a 74 fCircular(0),
75 fPoolID(-1)
32fab534 76{
81e97e0d 77 //
5c09947e 78 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 79 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
80 for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0;
32fab534 81 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2;
82 for (Int_t i=0;i<4;i++) {
83 fDEDX[i] = 0.;
84 fSDEDX[i] = 1e10;
85 fNCDEDX[i] = 0;
9c0db267 86 fNCDEDXInclThres[i] = 0;
32fab534 87 }
dee67df8 88 for (Int_t i=0;i<9;i++) fDEDX[i] = 0;
32fab534 89 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
81e97e0d 90}
32fab534 91
2928bdf0 92AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner):
32fab534 93 AliTPCtrack(s),
94 fEsd(0x0),
2928bdf0 95 fClusterOwner(clusterOwner),
32fab534 96 fRow(0),
97 fSector(-1),
98 fRelativeSector(-1),
c07cb486 99 fCurrentSigmaY2(-1),
100 fCurrentSigmaZ2(-1),
e0e13b88 101 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
102 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 103 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
104 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 105 fErrorY2(1e10),
106 fErrorZ2(1e10),
107 fCurrentCluster(0x0),
108 fCurrentClusterIndex1(-1),
109 fInDead(kFALSE),
110 fIsSeeding(kFALSE),
111 fNoCluster(0),
112 fSort(0),
113 fBSigned(kFALSE),
114 fSeedType(0),
115 fSeed1(-1),
116 fSeed2(-1),
117 fMAngular(0),
ddfbc51a 118 fCircular(0),
119 fPoolID(-1)
32fab534 120{
81e97e0d 121 //---------------------
122 // dummy copy constructor
123 //-------------------------
2928bdf0 124 for (Int_t i=0;i<160;i++) {
125 fClusterPointer[i]=0;
126 if (fClusterOwner){
127 if (s.fClusterPointer[i])
128 fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i]));
129 }else{
130 fClusterPointer[i] = s.fClusterPointer[i];
131 }
132 fTrackPoints[i] = s.fTrackPoints[i];
133 }
81e97e0d 134 for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i];
5c09947e 135 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i];
136 for (Int_t i=0;i<4;i++) {
137 fDEDX[i] = s.fDEDX[i];
138 fSDEDX[i] = s.fSDEDX[i];
139 fNCDEDX[i] = s.fNCDEDX[i];
9c0db267 140 fNCDEDXInclThres[i] = s.fNCDEDXInclThres[i];
5c09947e 141 }
dee67df8 142 for (Int_t i=0;i<9;i++) fDEDX[i] = 0;
143
5c09947e 144 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i];
19b00333 145
81e97e0d 146}
5c09947e 147
148
32fab534 149AliTPCseed::AliTPCseed(const AliTPCtrack &t):
150 AliTPCtrack(t),
151 fEsd(0x0),
2928bdf0 152 fClusterOwner(kFALSE),
32fab534 153 fRow(0),
154 fSector(-1),
155 fRelativeSector(-1),
c07cb486 156 fCurrentSigmaY2(-1),
157 fCurrentSigmaZ2(-1),
e0e13b88 158 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
159 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 160 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
161 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 162 fErrorY2(1e10),
163 fErrorZ2(1e10),
164 fCurrentCluster(0x0),
165 fCurrentClusterIndex1(-1),
166 fInDead(kFALSE),
167 fIsSeeding(kFALSE),
168 fNoCluster(0),
169 fSort(0),
170 fBSigned(kFALSE),
171 fSeedType(0),
172 fSeed1(-1),
173 fSeed2(-1),
174 fMAngular(0),
ddfbc51a 175 fCircular(0),
176 fPoolID(-1)
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;
9c0db267 197 fNCDEDXInclThres[i] = 0;
32fab534 198 }
dee67df8 199 for (Int_t i=0;i<9;i++) fDEDX[i] = fDEDX[i];
200
32fab534 201 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
81e97e0d 202}
203
6c94f330 204AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5],
205 const Double_t cc[15], Int_t index):
206 AliTPCtrack(xr, alpha, xx, cc, index),
32fab534 207 fEsd(0x0),
2928bdf0 208 fClusterOwner(kFALSE),
32fab534 209 fRow(0),
210 fSector(-1),
211 fRelativeSector(-1),
c07cb486 212 fCurrentSigmaY2(-1),
213 fCurrentSigmaZ2(-1),
e0e13b88 214 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
215 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 216 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
217 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 218 fErrorY2(1e10),
219 fErrorZ2(1e10),
220 fCurrentCluster(0x0),
221 fCurrentClusterIndex1(-1),
222 fInDead(kFALSE),
223 fIsSeeding(kFALSE),
224 fNoCluster(0),
225 fSort(0),
226 fBSigned(kFALSE),
227 fSeedType(0),
228 fSeed1(-1),
229 fSeed2(-1),
230 fMAngular(0),
ddfbc51a 231 fCircular(0),
232 fPoolID(-1)
32fab534 233{
234 //
235 // Constructor
81e97e0d 236 //
32fab534 237 fFirstPoint =0;
5c09947e 238 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 239 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
81e97e0d 240 for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
32fab534 241 for (Int_t i=0;i<4;i++) {
242 fDEDX[i] = 0.;
243 fSDEDX[i] = 1e10;
244 fNCDEDX[i] = 0;
9c0db267 245 fNCDEDXInclThres[i] = 0;
32fab534 246 }
dee67df8 247 for (Int_t i=0;i<9;i++) fDEDX[i] = 0;
248
32fab534 249 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
81e97e0d 250}
251
252AliTPCseed::~AliTPCseed(){
253 //
254 // destructor
81e97e0d 255 fNoCluster =0;
2928bdf0 256 if (fClusterOwner){
257 for (Int_t icluster=0; icluster<160; icluster++){
258 delete fClusterPointer[icluster];
259 }
260 }
bfb57b6c 261
81e97e0d 262}
179c6296 263//_________________________________________________
316c6cd9 264AliTPCseed & AliTPCseed::operator=(const AliTPCseed &param)
179c6296 265{
266 //
316c6cd9 267 // assignment operator
ddfbc51a 268 // don't touch pool ID
179c6296 269 //
316c6cd9 270 if(this!=&param){
271 AliTPCtrack::operator=(param);
272 fEsd =param.fEsd;
316c6cd9 273 fClusterOwner = param.fClusterOwner;
f06a1ff6 274 if (!fClusterOwner) for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i];
396e55e3 275 else for(Int_t i = 0;i<160;++i) {
276 delete fClusterPointer[i];
277 fClusterPointer[i] = new AliTPCclusterMI(*(param.fClusterPointer[i]));
278 }
316c6cd9 279 // leave out fPoint, they are also not copied in the copy ctor...
280 // but deleted in the dtor... strange...
316c6cd9 281 fRow = param.fRow;
282 fSector = param.fSector;
283 fRelativeSector = param.fRelativeSector;
284 fCurrentSigmaY2 = param.fCurrentSigmaY2;
285 fCurrentSigmaZ2 = param.fCurrentSigmaZ2;
286 fErrorY2 = param.fErrorY2;
287 fErrorZ2 = param.fErrorZ2;
288 fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed
289 fCurrentClusterIndex1 = param.fCurrentClusterIndex1;
290 fInDead = param.fInDead;
291 fIsSeeding = param.fIsSeeding;
292 fNoCluster = param.fNoCluster;
293 fSort = param.fSort;
294 fBSigned = param.fBSigned;
295 for(Int_t i = 0;i<4;++i){
296 fDEDX[i] = param.fDEDX[i];
297 fSDEDX[i] = param.fSDEDX[i];
298 fNCDEDX[i] = param.fNCDEDX[i];
9c0db267 299 fNCDEDXInclThres[i] = param.fNCDEDXInclThres[i];
316c6cd9 300 }
dee67df8 301 for (Int_t i=0;i<9;i++) fDEDX[i] = 0;
302
316c6cd9 303 for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i];
304
305 fSeedType = param.fSeedType;
306 fSeed1 = param.fSeed1;
307 fSeed2 = param.fSeed2;
308 for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i];
309 fMAngular = param.fMAngular;
310 fCircular = param.fCircular;
311 for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i];
316c6cd9 312 }
179c6296 313 return (*this);
314}
315//____________________________________________________
81e97e0d 316AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i)
317{
318 //
319 //
320 return &fTrackPoints[i];
321}
322
81e97e0d 323
324
325Double_t AliTPCseed::GetDensityFirst(Int_t n)
326{
327 //
328 //
329 // return cluster for n rows bellow first point
330 Int_t nfoundable = 1;
331 Int_t nfound = 1;
332 for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){
333 Int_t index = GetClusterIndex2(i);
334 if (index!=-1) nfoundable++;
335 if (index>0) nfound++;
336 }
337 if (nfoundable<n) return 0;
338 return Double_t(nfound)/Double_t(nfoundable);
339
340}
341
342
343void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2)
344{
345 // get cluster stat. on given region
346 //
347 found = 0;
348 foundable = 0;
349 shared =0;
350 for (Int_t i=first;i<last; i++){
351 Int_t index = GetClusterIndex2(i);
352 if (index!=-1) foundable++;
6d493ea0 353 if (index&0x8000) continue;
81e97e0d 354 if (fClusterPointer[i]) {
355 found++;
356 }
357 else
358 continue;
359
360 if (fClusterPointer[i]->IsUsed(10)) {
361 shared++;
362 continue;
363 }
364 if (!plus2) continue; //take also neighborhoud
365 //
366 if ( (i>0) && fClusterPointer[i-1]){
367 if (fClusterPointer[i-1]->IsUsed(10)) {
368 shared++;
369 continue;
370 }
371 }
372 if ( fClusterPointer[i+1]){
373 if (fClusterPointer[i+1]->IsUsed(10)) {
374 shared++;
375 continue;
376 }
377 }
378
379 }
380 //if (shared>found){
381 //Error("AliTPCseed::GetClusterStatistic","problem\n");
382 //}
383}
384
385
386
387
388
389void AliTPCseed::Reset(Bool_t all)
390{
391 //
392 //
393 SetNumberOfClusters(0);
394 fNFoundable = 0;
395 SetChi2(0);
6c94f330 396 ResetCovariance(10.);
81e97e0d 397 /*
398 if (fTrackPoints){
399 for (Int_t i=0;i<8;i++){
400 delete [] fTrackPoints[i];
401 }
402 delete fTrackPoints;
403 fTrackPoints =0;
404 }
405 */
406
407 if (all){
f06a1ff6 408 for (Int_t i=200;i--;) SetClusterIndex2(i,-3);
409 if (!fClusterOwner) for (Int_t i=160;i--;) fClusterPointer[i]=0;
410 else for (Int_t i=160;i--;) {delete fClusterPointer[i]; fClusterPointer[i]=0;}
81e97e0d 411 }
412
413}
414
415
416void AliTPCseed::Modify(Double_t factor)
417{
418
419 //------------------------------------------------------------------
420 //This function makes a track forget its history :)
421 //------------------------------------------------------------------
422 if (factor<=0) {
6c94f330 423 ResetCovariance(10.);
81e97e0d 424 return;
425 }
6c94f330 426 ResetCovariance(factor);
427
81e97e0d 428 SetNumberOfClusters(0);
429 fNFoundable =0;
430 SetChi2(0);
431 fRemoval = 0;
432 fCurrentSigmaY2 = 0.000005;
433 fCurrentSigmaZ2 = 0.000005;
434 fNoCluster = 0;
435 //fFirstPoint = 160;
436 //fLastPoint = 0;
437}
438
439
440
441
442Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const
443{
444 //-----------------------------------------------------------------
445 // This function find proloncation of a track to a reference plane x=xk.
446 // doesn't change internal state of the track
447 //-----------------------------------------------------------------
448
6c94f330 449 Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1;
81e97e0d 450
6c94f330 451 if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) {
81e97e0d 452 return 0;
453 }
454
455 // Double_t y1=fP0, z1=fP1;
60e55aee 456 Double_t c1=GetSnp(), r1=sqrt((1.-c1)*(1.+c1));
457 Double_t c2=c1 + GetC()*dx, r2=sqrt((1.-c2)*(1.+c2));
81e97e0d 458
6c94f330 459 y = GetY();
460 z = GetZ();
81e97e0d 461 //y += dx*(c1+c2)/(r1+r2);
462 //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3;
463
464 Double_t dy = dx*(c1+c2)/(r1+r2);
465 Double_t dz = 0;
466 //
6c94f330 467 Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1);
81e97e0d 468 /*
469 if (TMath::Abs(delta)>0.0001){
470 dz = fP3*TMath::ASin(delta)/fP4;
471 }else{
472 dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1);
473 }
474 */
475 // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4;
6c94f330 476 dz = GetTgl()*TMath::ASin(delta)/GetC();
81e97e0d 477 //
478 y+=dy;
479 z+=dz;
480
481
482 return 1;
483}
484
485
486//_____________________________________________________________________________
af32720d 487Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const
81e97e0d 488{
489 //-----------------------------------------------------------------
490 // This function calculates a predicted chi2 increment.
491 //-----------------------------------------------------------------
6c94f330 492 Double_t p[2]={c->GetY(), c->GetZ()};
493 Double_t cov[3]={fErrorY2, 0., fErrorZ2};
9c7b8249 494
495 Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX();
496 if (TMath::Abs(dx)>0){
497 Float_t ty = TMath::Tan(TMath::ASin(GetSnp()));
498 Float_t dy = dx*ty;
499 Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl();
500 p[0] = c->GetY()-dy;
501 p[1] = c->GetZ()-dz;
502 }
6c94f330 503 return AliExternalTrackParam::GetPredictedChi2(p,cov);
81e97e0d 504}
505
81e97e0d 506//_________________________________________________________________________________________
507
508
509Int_t AliTPCseed::Compare(const TObject *o) const {
510 //-----------------------------------------------------------------
511 // This function compares tracks according to the sector - for given sector according z
512 //-----------------------------------------------------------------
513 AliTPCseed *t=(AliTPCseed*)o;
6c94f330 514
81e97e0d 515 if (fSort == 0){
516 if (t->fRelativeSector>fRelativeSector) return -1;
517 if (t->fRelativeSector<fRelativeSector) return 1;
518 Double_t z2 = t->GetZ();
519 Double_t z1 = GetZ();
520 if (z2>z1) return 1;
521 if (z2<z1) return -1;
522 return 0;
523 }
524 else {
525 Float_t f2 =1;
6c23ffed 526 f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066);
81e97e0d 527 if (t->fBConstrain) f2=1.2;
528
529 Float_t f1 =1;
6c23ffed 530 f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066);
81e97e0d 531
532 if (fBConstrain) f1=1.2;
533
534 if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1;
535 else return +1;
536 }
537}
538
539
540
541
542//_____________________________________________________________________________
70e20dcf 543Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index)
6c94f330 544{
81e97e0d 545 //-----------------------------------------------------------------
546 // This function associates a cluster with this track.
547 //-----------------------------------------------------------------
81e97e0d 548 Int_t n=GetNumberOfClusters();
70e20dcf 549 Int_t idx=GetClusterIndex(n); // save the current cluster index
550
2d15e7a5 551 AliTPCclusterMI cl(*(AliTPCclusterMI*)c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2);
552
553 AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
554
555 Float_t ty = TMath::Tan(TMath::ASin(GetSnp()));
556
557 if( parcl ){
558 Int_t padSize = 0; // short pads
559 if (cl.GetDetector() >= 36) {
560 padSize = 1; // medium pads
561 if (cl.GetRow() > 63) padSize = 2; // long pads
562 }
563 Float_t waveCorr = parcl->GetWaveCorrection( padSize, cl.GetZ(), cl.GetMax(),cl.GetPad(), ty );
564 cl.SetY( cl.GetY() - waveCorr );
565 }
566
ca521f6c 567 Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX();
568 if (TMath::Abs(dx)>0){
ca521f6c 569 Float_t dy = dx*ty;
570 Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl();
2d15e7a5 571 cl.SetY(cl.GetY()-dy);
572 cl.SetZ(cl.GetZ()-dz);
573 }
574
ca521f6c 575
70e20dcf 576 if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE;
e0e13b88 577
578 if (fCMeanSigmaY2p30<0){
579 fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30%
c07cb486 580 fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30%
581 fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5%
582 fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5%
e0e13b88 583 }
584 //
585 fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2();
c07cb486 586 fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2();
587 if (fCurrentSigmaY2>0){
588 fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2;
589 fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2;
590 }
e0e13b88 591
81e97e0d 592
70e20dcf 593 SetClusterIndex(n,idx); // restore the current cluster index
6c94f330 594 return kTRUE;
81e97e0d 595}
596
597
598
599//_____________________________________________________________________________
dc5cd41c 600Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t /* onlyused */) {
81e97e0d 601 //-----------------------------------------------------------------
602 // This funtion calculates dE/dX within the "low" and "up" cuts.
603 //-----------------------------------------------------------------
2cadb5d1 604 // CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal)
83afd539 605 AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
44a6a09e 606
83afd539 607 Int_t row0 = param->GetNRowLow();
608 Int_t row1 = row0+param->GetNRowUp1();
609 Int_t row2 = row1+param->GetNRowUp2();
44a6a09e 610 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
611 Int_t useTot = 0;
612 if (recoParam) useTot = (recoParam->GetUseTotCharge())? 0:1;
83afd539 613 //
614 //
19e8ad6c 615 TVectorF i1i2;
dee67df8 616 TVectorF irocTot;
617 TVectorF oroc1Tot;
618 TVectorF oroc2Tot;
619 TVectorF forocTot;
620 //
621 TVectorF irocMax;
622 TVectorF oroc1Max;
623 TVectorF oroc2Max;
624 TVectorF forocMax;
19e8ad6c 625
626 CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 0, 2, 0, &i1i2);
dee67df8 627 //
628 CookdEdxAnalytical(low,up,kTRUE ,0 ,row0, 0, 2, 0, &irocTot);
629 CookdEdxAnalytical(low,up,kTRUE ,row0,row1, 0, 2, 0, &oroc1Tot);
630 CookdEdxAnalytical(low,up,kTRUE ,row1,row2, 0, 2, 0, &oroc2Tot);
631 CookdEdxAnalytical(low,up,kTRUE ,row0,row2, 0, 2, 0, &forocTot); // full OROC truncated mean
632 //
633 CookdEdxAnalytical(low,up,kFALSE ,0 ,row0, 0, 2, 0, &irocMax);
634 CookdEdxAnalytical(low,up,kFALSE ,row0,row1, 0, 2, 0, &oroc1Max);
635 CookdEdxAnalytical(low,up,kFALSE ,row1,row2, 0, 2, 0, &oroc2Max);
636 CookdEdxAnalytical(low,up,kFALSE ,row0,row2, 0, 2, 0, &forocMax); // full OROC truncated mean
19e8ad6c 637
638 fDEDX[0] = i1i2(0);
dee67df8 639 //
640 fDEDX[1] = irocTot(0);
641 fDEDX[2] = oroc1Tot(0);
642 fDEDX[3] = oroc2Tot(0);
643 fDEDX[4] = forocTot(0); // full OROC truncated mean
644 fDEDX[5] = irocMax(0);
645 fDEDX[6] = oroc1Max(0);
646 fDEDX[7] = oroc2Max(0);
647 fDEDX[8] = forocMax(0); // full OROC truncated mean
83afd539 648 //
19e8ad6c 649 fSDEDX[0] = i1i2(1);
dee67df8 650 fSDEDX[1] = irocTot(1);
651 fSDEDX[2] = oroc1Tot(1);
652 fSDEDX[3] = oroc2Tot(1);
83afd539 653 //
19e8ad6c 654 fNCDEDX[0] = TMath::Nint(i1i2(2));
dee67df8 655
656 fNCDEDX[1] = TMath::Nint( irocTot(2));
657 fNCDEDX[2] = TMath::Nint(oroc1Tot(2));
658 fNCDEDX[3] = TMath::Nint(oroc2Tot(2));
64bf5ca0 659 //
19e8ad6c 660 fNCDEDXInclThres[0] = TMath::Nint(i1i2(2)+i1i2(9));
dee67df8 661 fNCDEDXInclThres[1] = TMath::Nint( irocTot(2)+ irocTot(9));
662 fNCDEDXInclThres[2] = TMath::Nint(oroc1Tot(2)+oroc1Tot(9));
663 fNCDEDXInclThres[3] = TMath::Nint(oroc2Tot(2)+oroc2Tot(9));
64bf5ca0 664 //
83afd539 665 SetdEdx(fDEDX[0]);
666 return fDEDX[0];
81e97e0d 667
ba5e52fb 668// return CookdEdxNorm(low,up,0,i1,i2,1,0,2);
4cc7ba77 669
670
ba5e52fb 671// Float_t amp[200];
672// Float_t angular[200];
673// Float_t weight[200];
674// Int_t index[200];
675// //Int_t nc = 0;
676// Float_t meanlog = 100.;
677
678// Float_t mean[4] = {0,0,0,0};
679// Float_t sigma[4] = {1000,1000,1000,1000};
680// Int_t nc[4] = {0,0,0,0};
681// Float_t norm[4] = {1000,1000,1000,1000};
682// //
683// //
684// fNShared =0;
685
686// Float_t gainGG = 1;
687// if (AliTPCcalibDB::Instance()->GetParameters()){
688// gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000.; //relative gas gain
689// }
690
691
692// for (Int_t of =0; of<4; of++){
693// for (Int_t i=of+i1;i<i2;i+=4)
694// {
695// Int_t clindex = fIndex[i];
696// if (clindex<0||clindex&0x8000) continue;
697
698// //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i);
699// AliTPCTrackerPoint * point = GetTrackPoint(i);
700// //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1);
701// //AliTPCTrackerPoint * pointp = 0;
702// //if (i<159) pointp = GetTrackPoint(i+1);
703
704// if (point==0) continue;
705// AliTPCclusterMI * cl = fClusterPointer[i];
706// if (cl==0) continue;
707// if (onlyused && (!cl->IsUsed(10))) continue;
708// if (cl->IsUsed(11)) {
709// fNShared++;
710// continue;
711// }
712// Int_t type = cl->GetType();
713// //if (point->fIsShared){
714// // fNShared++;
715// // continue;
716// //}
717// //if (pointm)
718// // if (pointm->fIsShared) continue;
719// //if (pointp)
720// // if (pointp->fIsShared) continue;
721
722// if (type<0) continue;
723// //if (type>10) continue;
724// //if (point->GetErrY()==0) continue;
725// //if (point->GetErrZ()==0) continue;
726
727// //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY();
728// //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ();
729// //if ((ddy*ddy+ddz*ddz)>10) continue;
730
731
732// // if (point->GetCPoint().GetMax()<5) continue;
733// if (cl->GetMax()<5) continue;
734// Float_t angley = point->GetAngleY();
735// Float_t anglez = point->GetAngleZ();
736
737// Float_t rsigmay2 = point->GetSigmaY();
738// Float_t rsigmaz2 = point->GetSigmaZ();
739// /*
740// Float_t ns = 1.;
741// if (pointm){
742// rsigmay += pointm->GetTPoint().GetSigmaY();
743// rsigmaz += pointm->GetTPoint().GetSigmaZ();
744// ns+=1.;
745// }
746// if (pointp){
747// rsigmay += pointp->GetTPoint().GetSigmaY();
748// rsigmaz += pointp->GetTPoint().GetSigmaZ();
749// ns+=1.;
750// }
751// rsigmay/=ns;
752// rsigmaz/=ns;
753// */
754
755// Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2);
756
757// Float_t ampc = 0; // normalization to the number of electrons
758// if (i>64){
759// // ampc = 1.*point->GetCPoint().GetMax();
760// ampc = 1.*cl->GetMax();
761// //ampc = 1.*point->GetCPoint().GetQ();
762// // AliTPCClusterPoint & p = point->GetCPoint();
763// // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5);
764// // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
765// //Float_t dz =
766// // TMath::Abs( Int_t(iz) - iz + 0.5);
767// //ampc *= 1.15*(1-0.3*dy);
768// //ampc *= 1.15*(1-0.3*dz);
769// // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ()));
770// //ampc *=zfactor;
771// }
772// else{
773// //ampc = 1.0*point->GetCPoint().GetMax();
774// ampc = 1.0*cl->GetMax();
775// //ampc = 1.0*point->GetCPoint().GetQ();
776// //AliTPCClusterPoint & p = point->GetCPoint();
777// // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5);
778// //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
779// //Float_t dz =
780// // TMath::Abs( Int_t(iz) - iz + 0.5);
781
782// //ampc *= 1.15*(1-0.3*dy);
783// //ampc *= 1.15*(1-0.3*dz);
784// // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ()));
785// //ampc *=zfactor;
786
787// }
788// ampc *= 2.0; // put mean value to channel 50
789// //ampc *= 0.58; // put mean value to channel 50
790// Float_t w = 1.;
791// // if (type>0) w = 1./(type/2.-0.5);
792// // Float_t z = TMath::Abs(cl->GetZ());
793// if (i<64) {
794// ampc /= 0.6;
795// //ampc /= (1+0.0008*z);
796// } else
797// if (i>128){
798// ampc /=1.5;
799// //ampc /= (1+0.0008*z);
800// }else{
801// //ampc /= (1+0.0008*z);
802// }
81e97e0d 803
ba5e52fb 804// if (type<0) { //amp at the border - lower weight
805// // w*= 2.;
81e97e0d 806
ba5e52fb 807// continue;
808// }
809// if (rsigma>1.5) ampc/=1.3; // if big backround
810// amp[nc[of]] = ampc;
811// amp[nc[of]] /=gainGG;
812// angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez);
813// weight[nc[of]] = w;
814// nc[of]++;
815// }
81e97e0d 816
ba5e52fb 817// TMath::Sort(nc[of],amp,index,kFALSE);
818// Float_t sumamp=0;
819// Float_t sumamp2=0;
820// Float_t sumw=0;
821// //meanlog = amp[index[Int_t(nc[of]*0.33)]];
822// meanlog = 50;
823// for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){
824// Float_t ampl = amp[index[i]]/angular[index[i]];
825// ampl = meanlog*TMath::Log(1.+ampl/meanlog);
826// //
827// sumw += weight[index[i]];
828// sumamp += weight[index[i]]*ampl;
829// sumamp2 += weight[index[i]]*ampl*ampl;
830// norm[of] += angular[index[i]]*weight[index[i]];
831// }
832// if (sumw<1){
833// SetdEdx(0);
834// }
835// else {
836// norm[of] /= sumw;
837// mean[of] = sumamp/sumw;
838// sigma[of] = sumamp2/sumw-mean[of]*mean[of];
839// if (sigma[of]>0.1)
840// sigma[of] = TMath::Sqrt(sigma[of]);
841// else
842// sigma[of] = 1000;
81e97e0d 843
ba5e52fb 844// mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog;
845// //mean *=(1-0.02*(sigma/(mean*0.17)-1.));
846// //mean *=(1-0.1*(norm-1.));
847// }
848// }
849
850// Float_t dedx =0;
851// fSdEdx =0;
852// fMAngular =0;
853// // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1));
854// // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1));
81e97e0d 855
856
ba5e52fb 857// // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/
858// // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1])));
859
860// Int_t norm2 = 0;
861// Int_t norm3 = 0;
862// for (Int_t i =0;i<4;i++){
863// if (nc[i]>2&&nc[i]<1000){
864// dedx += mean[i] *nc[i];
865// fSdEdx += sigma[i]*(nc[i]-2);
866// fMAngular += norm[i] *nc[i];
867// norm2 += nc[i];
868// norm3 += nc[i]-2;
869// }
870// fDEDX[i] = mean[i];
871// fSDEDX[i] = sigma[i];
872// fNCDEDX[i]= nc[i];
873// }
874
875// if (norm3>0){
876// dedx /=norm2;
877// fSdEdx /=norm3;
878// fMAngular/=norm2;
879// }
880// else{
881// SetdEdx(0);
882// return 0;
883// }
884// // Float_t dedx1 =dedx;
885// /*
886// dedx =0;
887// for (Int_t i =0;i<4;i++){
888// if (nc[i]>2&&nc[i]<1000){
889// mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.));
890// dedx += mean[i] *nc[i];
891// }
892// fDEDX[i] = mean[i];
893// }
894// dedx /= norm2;
895// */
81e97e0d 896
897
ba5e52fb 898// SetdEdx(dedx);
899// return dedx;
81e97e0d 900}
81e97e0d 901
902void AliTPCseed::CookPID()
903{
904 //
905 // cook PID information according dEdx
906 //
907 Double_t fRange = 10.;
908 Double_t fRes = 0.1;
909 Double_t fMIP = 47.;
910 //
911 Int_t ns=AliPID::kSPECIES;
912 Double_t sumr =0;
913 for (Int_t j=0; j<ns; j++) {
914 Double_t mass=AliPID::ParticleMass(j);
6c94f330 915 Double_t mom=GetP();
81e97e0d 916 Double_t dedx=fdEdx/fMIP;
5731b051 917 Double_t bethe=AliMathBase::BetheBlochAleph(mom/mass);
81e97e0d 918 Double_t sigma=fRes*bethe;
919 if (sigma>0.001){
920 if (TMath::Abs(dedx-bethe) > fRange*sigma) {
921 fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
922 sumr+=fTPCr[j];
923 continue;
924 }
925 fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
926 sumr+=fTPCr[j];
927 }
928 else{
929 fTPCr[j]=1.;
930 sumr+=fTPCr[j];
931 }
932 }
933 for (Int_t j=0; j<ns; j++) {
934 fTPCr[j]/=sumr; //normalize
935 }
936}
937
6c94f330 938Double_t AliTPCseed::GetYat(Double_t xk) const {
939//-----------------------------------------------------------------
940// This function calculates the Y-coordinate of a track at the plane x=xk.
941//-----------------------------------------------------------------
942 if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06
60e55aee 943 Double_t c1=GetSnp(), r1=TMath::Sqrt((1.-c1)*(1.+c1));
6c94f330 944 Double_t c2=c1+GetC()*(xk-GetX());
945 if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0;
60e55aee 946 Double_t r2=TMath::Sqrt((1.-c2)*(1.+c2));
6c94f330 947 return GetY() + (xk-GetX())*(c1+c2)/(r1+r2);
948}
949
0a65832b 950
951
8a92e133 952Float_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 953
954 //
955 // calculates dedx using the cluster
956 // low - up specify trunc mean range - default form 0-0.7
8076baa0 957 // type - 1 - max charge or 0- total charge in cluster
958 // //2- max no corr 3- total+ correction
0a65832b 959 // i1-i2 - the pad-row range used for calculation
ba5e52fb 960 // shapeNorm - kTRUE -taken from OCDB
961 //
962 // posNorm - usage of pos normalization
83afd539 963 // padNorm - pad type normalization
964 // returnVal - 0 return mean
965 // - 1 return RMS
966 // - 2 return number of clusters
967 //
0a65832b 968 // normalization parametrization taken from AliTPCClusterParam
969 //
ba5e52fb 970 AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
971 AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
972 if (!parcl) return 0;
973 if (!param) return 0;
83afd539 974 Int_t row0 = param->GetNRowLow();
975 Int_t row1 = row0+param->GetNRowUp1();
976
0a65832b 977 Float_t amp[160];
978 Int_t indexes[160];
979 Int_t ncl=0;
980 //
981 //
ba5e52fb 982 Float_t gainGG = 1; // gas gain factor -always enabled
983 Float_t gainPad = 1; // gain map - used always
83afd539 984 Float_t corrShape = 1; // correction due angular effect, diffusion and electron attachment
ba5e52fb 985 Float_t corrPos = 1; // local position correction - if posNorm enabled
986 Float_t corrPadType = 1; // pad type correction - if padNorm enabled
987 Float_t corrNorm = 1; // normalization factor - set Q to channel 50
988 //
989 //
990 //
4cc7ba77 991 if (AliTPCcalibDB::Instance()->GetParameters()){
ba5e52fb 992 gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain
566637aa 993 gainGG *= AliTPCcalibDB::Instance()->GetParameters()->GetNtot()/36.82;//correction for the ionisation
4cc7ba77 994 }
995
0a65832b 996 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
4cc7ba77 997 const Float_t kedgey =3.;
0a65832b 998 //
7cd8ac3f 999 //
0a65832b 1000 for (Int_t irow=i1; irow<i2; irow++){
1001 AliTPCclusterMI* cluster = GetClusterPointer(irow);
1002 if (!cluster) continue;
1003 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
8076baa0 1004 Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
ba5e52fb 1005 Int_t ipad= 0;
83afd539 1006 if (irow>=row0) ipad=1;
1007 if (irow>=row1) ipad=2;
ba5e52fb 1008 //
1009 //
1010 //
1011 AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor();
1012 if (gainMap) {
1013 //
1014 // Get gainPad - pad by pad calibration
1015 //
d6920632 1016 Float_t factor = 1;
1017 AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector());
83afd539 1018 if (irow < row0) { // IROC
ba5e52fb 1019 factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()));
d6920632 1020 } else { // OROC
83afd539 1021 factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad()));
d6920632 1022 }
ba5e52fb 1023 if (factor>0.5) gainPad=factor;
7cd8ac3f 1024 }
ba5e52fb 1025 //
1026 //do position and angular normalization
1027 //
1028 if (shapeNorm){
1029 if (type<=1){
1030 //
1031 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1032 Float_t ty = TMath::Abs(point->GetAngleY());
83afd539 1033 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
ba5e52fb 1034
1035 Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
1036 corrShape = parcl->Qnorm(ipad,type,dr,ty,tz);
1037 }
0a65832b 1038 }
ba5e52fb 1039
8a92e133 1040 if (posNorm>0){
8e1dcdda 1041 //
ba5e52fb 1042 // Do position normalization - relative distance to
1043 // center of pad- time bin
1044 // Work in progress
022a2383 1045 // corrPos = parcl->QnormPos(ipad,type, cluster->GetPad(),
1046 // cluster->GetTimeBin(), cluster->GetZ(),
1047 // cluster->GetSigmaY2(),cluster->GetSigmaZ2(),
1048 // cluster->GetMax(),cluster->GetQ());
8a92e133 1049 // scaled response function
1050 Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
1051 Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
1052 //
1053
022a2383 1054 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1055 Float_t ty = TMath::Abs(point->GetAngleY());
1056 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
1057
1058 if (type==1) corrPos =
1059 parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
8a92e133 1060 cluster->GetTimeBin(),ty,tz,yres0,zres0,0.4);
022a2383 1061 if (type==0) corrPos =
1062 parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
8a92e133 1063 cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,0.4);
1064 if (posNorm==3){
1065 Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
1066 Double_t signtgl = (cluster->GetZ()*point->GetAngleZ()>0)? 1:-1;
1067 Double_t p2 = TMath::Abs(TMath::Sin(TMath::ATan(ty)));
1068 Float_t corrHis = parcl->QnormHis(ipad,type,dr,p2,TMath::Abs(point->GetAngleZ())*signtgl);
1069 if (corrHis>0) corrPos*=corrHis;
1070 }
1071
8e1dcdda 1072 }
1073
ba5e52fb 1074 if (padNorm==1){
1075 //taken from OCDB
798017c7 1076 if (type==0 && parcl->QpadTnorm()) corrPadType = (*parcl->QpadTnorm())[ipad];
1077 if (type==1 && parcl->QpadMnorm()) corrPadType = (*parcl->QpadMnorm())[ipad];
022a2383 1078
2fc9608f 1079 }
ba5e52fb 1080 if (padNorm==2){
1081 corrPadType =param->GetPadPitchLength(cluster->GetDetector(),cluster->GetRow());
1082 //use hardwired - temp fix
1083 if (type==0) corrNorm=3.;
1084 if (type==1) corrNorm=1.;
1085 }
1086 //
00e32b66 1087 //
ba5e52fb 1088 amp[ncl]=charge;
00e32b66 1089 amp[ncl]/=gainGG; // normalized gas gain
1090 amp[ncl]/=gainPad; //
ba5e52fb 1091 amp[ncl]/=corrShape;
1092 amp[ncl]/=corrPadType;
1093 amp[ncl]/=corrPos;
1094 amp[ncl]/=corrNorm;
1095 //
0a65832b 1096 ncl++;
1097 }
8076baa0 1098
0a65832b 1099 if (type>3) return ncl;
1100 TMath::Sort(ncl,amp, indexes, kFALSE);
1101
8076baa0 1102 if (ncl<10) return 0;
0a65832b 1103
1104 Float_t suma=0;
83afd539 1105 Float_t suma2=0;
0a65832b 1106 Float_t sumn=0;
1107 Int_t icl0=TMath::Nint(ncl*low);
1108 Int_t icl1=TMath::Nint(ncl*up);
1109 for (Int_t icl=icl0; icl<icl1;icl++){
1110 suma+=amp[indexes[icl]];
83afd539 1111 suma2+=amp[indexes[icl]]*amp[indexes[icl]];
0a65832b 1112 sumn++;
1113 }
83afd539 1114 Float_t mean =suma/sumn;
1115 Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
3af3fbc4 1116 //
1117 // do time-dependent correction for pressure and temperature variations
1118 UInt_t runNumber = 1;
1119 Float_t corrTimeGain = 1;
1120 AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
e5e80ff9 1121 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
1122 if (trans && recoParam->GetUseGainCorrectionTime()>0) {
3af3fbc4 1123 runNumber = trans->GetCurrentRunNumber();
e5e80ff9 1124 //AliTPCcalibDB::Instance()->SetRun(runNumber);
a2c3785e 1125 TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
3af3fbc4 1126 if (timeGainSplines) {
1127 UInt_t time = trans->GetCurrentTimeStamp();
1128 AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
1129 AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
1130 if (fitMIP) {
108a67db 1131 corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time);/*fitMIP->Eval(time);*/
3af3fbc4 1132 } else {
108a67db 1133 if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time);/*fitFPcosmic->Eval(time);*/
3af3fbc4 1134 }
1135 }
1136 }
1137 mean /= corrTimeGain;
1138 rms /= corrTimeGain;
1139 //
83afd539 1140 if (returnVal==1) return rms;
8a92e133 1141 if (returnVal==2) return ncl;
1142 return mean;
1143}
1144
19e8ad6c 1145Float_t AliTPCseed::CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal, Int_t rowThres, Int_t mode, TVectorT<float> *returnVec){
8a92e133 1146
1147 //
1148 // calculates dedx using the cluster
1149 // low - up specify trunc mean range - default form 0-0.7
1150 // type - 1 - max charge or 0- total charge in cluster
1151 // //2- max no corr 3- total+ correction
1152 // i1-i2 - the pad-row range used for calculation
1153 //
1154 // posNorm - usage of pos normalization
6feb400f 1155 // returnVal - 0 return mean
1156 // - 1 return RMS
1157 // - 2 return number of clusters
1158 // - 3 ratio
1159 // - 4 mean upper half
1160 // - 5 mean - lower half
1161 // - 6 third moment
1162 // mode - 0 - linear
1163 // - 1 - logatithmic
2efc897f 1164 // rowThres - number of rows before and after given pad row to check for clusters below threshold
8a92e133 1165 //
1166 // normalization parametrization taken from AliTPCClusterParam
1167 //
19e8ad6c 1168 if (returnVec) returnVec->ResizeTo(10);
1169
8a92e133 1170 AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
1171 AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
efbb6a56 1172 AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
1173 const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
8a92e133 1174 if (!parcl) return 0;
1175 if (!param) return 0;
1176 Int_t row0 = param->GetNRowLow();
1177 Int_t row1 = row0+param->GetNRowUp1();
1178
1179 Float_t amp[160];
1180 Int_t indexes[160];
1181 Int_t ncl=0;
2efc897f 1182 Int_t nclBelowThr = 0; // counts number of clusters below threshold
8a92e133 1183 //
1184 //
1185 Float_t gainGG = 1; // gas gain factor -always enabled
1186 Float_t gainPad = 1; // gain map - used always
1187 Float_t corrPos = 1; // local position correction - if posNorm enabled
8a92e133 1188 //
1189 //
1190 //
1191 if (AliTPCcalibDB::Instance()->GetParameters()){
1192 gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain
566637aa 1193 gainGG *= AliTPCcalibDB::Instance()->GetParameters()->GetNtot()/36.82;//correction for the ionisation
8a92e133 1194 }
efbb6a56 1195 Double_t timeCut=0;
1196 if (AliTPCcalibDB::Instance()->IsTrgL0()){
1197 // by defualt we assume L1 trigger is used - make a correction in case of L0
1198 AliCTPTimeParams* ctp = AliTPCcalibDB::Instance()->GetCTPTimeParams();
1199 Double_t delay = ctp->GetDelayL1L0()*0.000000025;
1200 delay/=param->GetTSample();
1201 timeCut=delay;
1202 }
1203 timeCut += recoParam->GetSkipTimeBins();
1204
649fcc43 1205 //
1206 // extract time-dependent correction for pressure and temperature variations
1207 //
1208 UInt_t runNumber = 1;
1209 Float_t corrTimeGain = 1;
1210 TObjArray * timeGainSplines = 0x0;
1211 TGraphErrors * grPadEqual = 0x0;
7e3e1a9c 1212 TGraphErrors* grChamberGain[3]={0x0,0x0,0x0};
649fcc43 1213 //
6d64657a 1214 //
00e32b66 1215 if (recoParam->GetNeighborRowsDedx() == 0) rowThres = 0;
1216 UInt_t time = 1;//
6d64657a 1217 //
649fcc43 1218 if (trans) {
2efc897f 1219 runNumber = trans->GetCurrentRunNumber();
1220 //AliTPCcalibDB::Instance()->SetRun(runNumber);
1221 timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
1222 if (timeGainSplines && recoParam->GetUseGainCorrectionTime()>0) {
00e32b66 1223 time = trans->GetCurrentTimeStamp();
2efc897f 1224 AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
1225 AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
1226 if (fitMIP) {
1227 corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time); /*fitMIP->Eval(time);*/
649fcc43 1228 } else {
2efc897f 1229 if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time); /*fitFPcosmic->Eval(time); */
1230 }
649fcc43 1231 //
1232 if (type==1) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQMAX_PADREGIONGAIN_BEAM_ALL");
1233 if (type==0) grPadEqual = (TGraphErrors * ) timeGainSplines->FindObject("TGRAPHERRORS_MEANQTOT_PADREGIONGAIN_BEAM_ALL");
7e3e1a9c 1234 const char* names[3]={"SHORT","MEDIUM","LONG"};
1235 for (Int_t iPadRegion=0; iPadRegion<3; ++iPadRegion)
1236 grChamberGain[iPadRegion]=(TGraphErrors*)timeGainSplines->FindObject(Form("TGRAPHERRORS_MEAN_CHAMBERGAIN_%s_BEAM_ALL",names[iPadRegion]));
2efc897f 1237 }
7e3e1a9c 1238 }
2efc897f 1239
1240 const Float_t kClusterShapeCut = 1.5; // IMPPRTANT TO DO: move value to AliTPCRecoParam
8a92e133 1241 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
1242 const Float_t kedgey =3.;
1243 //
1244 //
1245 for (Int_t irow=i1; irow<i2; irow++){
1246 AliTPCclusterMI* cluster = GetClusterPointer(irow);
736a5826 1247 if (!cluster && irow > 1 && irow < 157) {
2efc897f 1248 Bool_t isClBefore = kFALSE;
1249 Bool_t isClAfter = kFALSE;
1250 for(Int_t ithres = 1; ithres <= rowThres; ithres++) {
1251 AliTPCclusterMI * clusterBefore = GetClusterPointer(irow - ithres);
1252 if (clusterBefore) isClBefore = kTRUE;
1253 AliTPCclusterMI * clusterAfter = GetClusterPointer(irow + ithres);
1254 if (clusterAfter) isClAfter = kTRUE;
1255 }
1256 if (isClBefore && isClAfter) nclBelowThr++;
2efc897f 1257 }
736a5826 1258 if (!cluster) continue;
efbb6a56 1259 if (cluster->GetTimeBin()<timeCut) continue; //reject clusters at the gating grid opening
2efc897f 1260 //
1261 //
8a92e133 1262 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
2efc897f 1263 //
1264 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1265 if (point==0) continue;
1266 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1267 if (rsigmay > kClusterShapeCut) continue;
1268 //
1269 if (cluster->IsUsed(11)) continue; // remove shared clusters for PbPb
1270 //
8a92e133 1271 Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
1272 Int_t ipad= 0;
1273 if (irow>=row0) ipad=1;
1274 if (irow>=row1) ipad=2;
1275 //
1276 //
1277 //
1278 AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor();
1279 if (gainMap) {
1280 //
1281 // Get gainPad - pad by pad calibration
1282 //
1283 Float_t factor = 1;
1284 AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector());
1285 if (irow < row0) { // IROC
1286 factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()));
1287 } else { // OROC
1288 factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad()));
1289 }
2efc897f 1290 if (factor>0.3) gainPad=factor;
8a92e133 1291 }
8a92e133 1292 //
1293 // Do position normalization - relative distance to
1294 // center of pad- time bin
1295
8a92e133 1296 Float_t ty = TMath::Abs(point->GetAngleY());
1297 Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
1298 Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
1299 Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
1300
1301 yres0 *=parcl->GetQnormCorr(ipad, type,0);
1302 zres0 *=parcl->GetQnormCorr(ipad, type,1);
1303 Float_t effLength=parcl->GetQnormCorr(ipad, type,4)*0.5;
1304 Float_t effDiff =(parcl->GetQnormCorr(ipad, type,2)+parcl->GetQnormCorr(ipad, type,3))*0.5;
1305 //
1306 if (type==1) {
1307 corrPos = parcl->GetQnormCorr(ipad, type,5)*
1308 parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
1309 cluster->GetTimeBin(),ty,tz,yres0,zres0,effLength,effDiff);
1310 Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
1311 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
1312 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
1313 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
1314 //
1315 }
1316 if (type==0) {
1317 corrPos = parcl->GetQnormCorr(ipad, type,5)*
1318 parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
1319 cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,effLength,effDiff);
1320
1321 Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
1322 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
1323 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
1324 corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
1325 //
1326 }
2efc897f 1327 //
1328 // pad region equalization outside of cluster param
1329 //
1330 Float_t gainEqualPadRegion = 1;
7e3e1a9c 1331 if (grPadEqual && recoParam->GetUseGainCorrectionTime()>0) gainEqualPadRegion = grPadEqual->Eval(ipad);
1332 //
1333 // chamber-by-chamber equalization outside gain map
1334 //
1335 Float_t gainChamber = 1;
3d674021 1336 if (grChamberGain[ipad] && recoParam->GetUseGainCorrectionTime()>0) {
1337 gainChamber = grChamberGain[ipad]->Eval(cluster->GetDetector());
1338 if (gainChamber==0) gainChamber=1; // in case old calibation was used before use no correction
1339 }
8a92e133 1340 //
00e32b66 1341 //
1342 //
1343 Double_t correctionHVandPT = AliTPCcalibDB::Instance()->GetGainCorrectionHVandPT(time, runNumber,cluster->GetDetector(), 5 , recoParam->GetGainCorrectionHVandPTMode());
1344 //
8a92e133 1345 amp[ncl]=charge;
00e32b66 1346 amp[ncl]/=gainGG; // nominal gas gain
1347 amp[ncl]/=correctionHVandPT; // correction for the HV and P/T - time dependent
1348 amp[ncl]/=gainPad; //
8a92e133 1349 amp[ncl]/=corrPos;
2efc897f 1350 amp[ncl]/=gainEqualPadRegion;
7e3e1a9c 1351 amp[ncl]/=gainChamber;
8a92e133 1352 //
1353 ncl++;
1354 }
1355
6feb400f 1356 if (type==2) return ncl;
8a92e133 1357 TMath::Sort(ncl,amp, indexes, kFALSE);
2efc897f 1358 //
8a92e133 1359 if (ncl<10) return 0;
2efc897f 1360 //
1361 Double_t * ampWithBelow = new Double_t[ncl + nclBelowThr];
1362 for(Int_t iCl = 0; iCl < ncl + nclBelowThr; iCl++) {
1363 if (iCl < nclBelowThr) {
1364 ampWithBelow[iCl] = amp[indexes[0]];
1365 } else {
1366 ampWithBelow[iCl] = amp[indexes[iCl - nclBelowThr]];
1367 }
1368 }
1369 //printf("DEBUG: %i shit %f", nclBelowThr, amp[indexes[0]]);
1370 //
8a92e133 1371 Float_t suma=0;
1372 Float_t suma2=0;
6feb400f 1373 Float_t suma3=0;
1374 Float_t sumaS=0;
8a92e133 1375 Float_t sumn=0;
6feb400f 1376 // upper,and lower part statistic
1377 Float_t sumL=0, sumL2=0, sumLN=0;
1378 Float_t sumD=0, sumD2=0, sumDN=0;
1379
2efc897f 1380 Int_t icl0=TMath::Nint((ncl + nclBelowThr)*low);
1381 Int_t icl1=TMath::Nint((ncl + nclBelowThr)*up);
6feb400f 1382 Int_t iclm=TMath::Nint((ncl + nclBelowThr)*(low +(up+low)*0.5));
1383 //
8a92e133 1384 for (Int_t icl=icl0; icl<icl1;icl++){
6feb400f 1385 if (ampWithBelow[icl]<0.1) continue;
504dd8df 1386 Double_t camp=ampWithBelow[icl]/corrTimeGain;
1387 if (mode==1) camp= TMath::Log(camp);
6feb400f 1388 if (icl<icl1){
504dd8df 1389 suma+=camp;
1390 suma2+=camp*camp;
1391 suma3+=camp*camp*camp;
1392 sumaS+=TMath::Power(TMath::Abs(camp),1./3.);
6feb400f 1393 sumn++;
1394 }
1395 if (icl>iclm){
504dd8df 1396 sumL+=camp;
1397 sumL2+=camp*camp;
6feb400f 1398 sumLN++;
1399 }
1400 if (icl<=iclm){
504dd8df 1401 sumD+=camp;
1402 sumD2+=camp*camp;
6feb400f 1403 sumDN++;
1404 }
8a92e133 1405 }
0f7547f1 1406 //
1407 Float_t mean = 0;
1408 Float_t meanL = 0;
1409 Float_t meanD = 0; // lower half mean
1410 if (sumn > 1e-30) mean =suma/sumn;
1411 if (sumLN > 1e-30) meanL =sumL/sumLN;
1412 if (sumDN > 1e-30) meanD =(sumD/sumDN);
1413 /*
8a92e133 1414 Float_t mean =suma/sumn;
6feb400f 1415 Float_t meanL = sumL/sumLN;
1416 Float_t meanD =(sumD/sumDN); // lower half mean
0f7547f1 1417 */
28273e26 1418
1419 Float_t rms = 0;
1420 Float_t mean2=0;
1421 Float_t mean3=0;
1422 Float_t meanS=0;
1423
1424 if(sumn>0){
1425 rms = TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
1426 mean2=suma2/sumn;
1427 mean3=suma3/sumn;
1428 meanS=sumaS/sumn;
1429 }
1430
6feb400f 1431 if (mean2>0) mean2=TMath::Power(TMath::Abs(mean2),1./2.);
1432 if (mean3>0) mean3=TMath::Power(TMath::Abs(mean3),1./3.);
1433 if (meanS>0) meanS=TMath::Power(TMath::Abs(meanS),3.);
3af3fbc4 1434 //
6feb400f 1435 if (mode==1) mean=TMath::Exp(mean);
1436 if (mode==1) meanL=TMath::Exp(meanL); // upper truncation
1437 if (mode==1) meanD=TMath::Exp(meanD); // lower truncation
1438 //
19e8ad6c 1439 delete [] ampWithBelow; //return?
6feb400f 1440
1441
3af3fbc4 1442 //
19e8ad6c 1443 if(returnVec){
1444 (*returnVec)(0) = mean;
1445 (*returnVec)(1) = rms;
1446 (*returnVec)(2) = ncl;
1447 (*returnVec)(3) = Double_t(nclBelowThr)/Double_t(nclBelowThr+ncl);
1448 (*returnVec)(4) = meanL;
1449 (*returnVec)(5) = meanD;
1450 (*returnVec)(6) = mean2;
1451 (*returnVec)(7) = mean3;
1452 (*returnVec)(8) = meanS;
1453 (*returnVec)(9) = nclBelowThr;
1454 }
1455
8a92e133 1456 if (returnVal==1) return rms;
83afd539 1457 if (returnVal==2) return ncl;
6feb400f 1458 if (returnVal==3) return Double_t(nclBelowThr)/Double_t(nclBelowThr+ncl);
1459 if (returnVal==4) return meanL;
1460 if (returnVal==5) return meanD;
1461 if (returnVal==6) return mean2;
1462 if (returnVal==7) return mean3;
1463 if (returnVal==8) return meanS;
19e8ad6c 1464 if (returnVal==9) return nclBelowThr;
83afd539 1465 return mean;
0a65832b 1466}
1467
83afd539 1468
0a65832b 1469
1470
eb02f63a 1471Float_t AliTPCseed::CookShape(Int_t type){
1472 //
1473 //
1474 //
1475 //-----------------------------------------------------------------
1476 // This funtion calculates dE/dX within the "low" and "up" cuts.
1477 //-----------------------------------------------------------------
1478 Float_t means=0;
1479 Float_t meanc=0;
1480 for (Int_t i =0; i<160;i++) {
1481 AliTPCTrackerPoint * point = GetTrackPoint(i);
1482 if (point==0) continue;
1483
1484 AliTPCclusterMI * cl = fClusterPointer[i];
1485 if (cl==0) continue;
1486
1487 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1488 Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ());
1489 Float_t rsigma = (rsigmay+rsigmaz)*0.5;
1490 if (type==0) means+=rsigma;
1491 if (type==1) means+=rsigmay;
1492 if (type==2) means+=rsigmaz;
1493 meanc++;
1494 }
1495 Float_t mean = (meanc>0)? means/meanc:0;
1496 return mean;
1497}
87e92a27 1498
1499
1500
1501Int_t AliTPCseed::RefitTrack(AliTPCseed *seed, AliExternalTrackParam * parin, AliExternalTrackParam * parout){
1502 //
1503 // Refit the track
1504 // return value - number of used clusters
1505 //
1506 //
1507 const Int_t kMinNcl =10;
1508 AliTPCseed *track=new AliTPCseed(*seed);
1509 Int_t sector=-1;
1510 // reset covariance
1511 //
1512 Double_t covar[15];
1513 for (Int_t i=0;i<15;i++) covar[i]=0;
1514 covar[0]=10.*10.;
1515 covar[2]=10.*10.;
1516 covar[5]=10.*10./(64.*64.);
1517 covar[9]=10.*10./(64.*64.);
1518 covar[14]=1*1;
1519 //
1520
1521 Float_t xmin=1000, xmax=-10000;
1522 Int_t imin=158, imax=0;
1523 for (Int_t i=0;i<160;i++) {
1524 AliTPCclusterMI *c=track->GetClusterPointer(i);
1791d824 1525 if (!c || (track->GetClusterIndex(i) & 0x8000)) continue;
87e92a27 1526 if (sector<0) sector = c->GetDetector();
1527 if (c->GetX()<xmin) xmin=c->GetX();
1528 if (c->GetX()>xmax) xmax=c->GetX();
1529 if (i<imin) imin=i;
1530 if (i>imax) imax=i;
1531 }
1532 if(imax-imin<kMinNcl) {
1533 delete track;
1534 return 0 ;
1535 }
1536 // Not succes to rotate
1537 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1538 delete track;
1539 return 0;
1540 }
1541 //
1542 //
1543 // fit from inner to outer row
1544 //
1545 AliExternalTrackParam paramIn;
1546 AliExternalTrackParam paramOut;
1547 Bool_t isOK=kTRUE;
be34cb88 1548 Int_t ncl=0;
87e92a27 1549 //
1550 //
1551 //
1552 for (Int_t i=imin; i<=imax; i++){
1553 AliTPCclusterMI *c=track->GetClusterPointer(i);
1791d824 1554 if (!c || (track->GetClusterIndex(i) & 0x8000)) continue;
87e92a27 1555 // if (RejectCluster(c,track)) continue;
be34cb88 1556 sector = (c->GetDetector()%18);
1557 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1558 //continue;
1559 }
87e92a27 1560 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1561 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1562 if (!track->PropagateTo(r[0])) {
1563 isOK=kFALSE;
87e92a27 1564 }
1565 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1566 }
1567 if (!isOK) { delete track; return 0;}
1568 track->AddCovariance(covar);
1569 //
1570 //
1571 //
1572 for (Int_t i=imax; i>=imin; i--){
1573 AliTPCclusterMI *c=track->GetClusterPointer(i);
1791d824 1574 if (!c || (track->GetClusterIndex(i) & 0x8000)) continue;
87e92a27 1575 //if (RejectCluster(c,track)) continue;
be34cb88 1576 sector = (c->GetDetector()%18);
1577 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1578 //continue;
1579 }
87e92a27 1580 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1581 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1582 if (!track->PropagateTo(r[0])) {
1583 isOK=kFALSE;
87e92a27 1584 }
1585 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1586 }
be34cb88 1587 //if (!isOK) { delete track; return 0;}
87e92a27 1588 paramIn = *track;
1589 track->AddCovariance(covar);
1590 //
1591 //
1592 for (Int_t i=imin; i<=imax; i++){
1593 AliTPCclusterMI *c=track->GetClusterPointer(i);
1791d824 1594 if (!c || (track->GetClusterIndex(i) & 0x8000)) continue;
be34cb88 1595 sector = (c->GetDetector()%18);
1596 if (!track->Rotate(TMath::DegToRad()*(sector%18*20.+10.)-track->GetAlpha())) {
1597 //continue;
1598 }
1599 ncl++;
87e92a27 1600 //if (RejectCluster(c,track)) continue;
1601 Double_t r[3]={c->GetX(),c->GetY(),c->GetZ()};
1602 Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
1603 if (!track->PropagateTo(r[0])) {
1604 isOK=kFALSE;
87e92a27 1605 }
1606 if ( !((static_cast<AliExternalTrackParam*>(track)->Update(&r[1],cov)))) isOK=kFALSE;
1607 }
be34cb88 1608 //if (!isOK) { delete track; return 0;}
87e92a27 1609 paramOut=*track;
87e92a27 1610 //
1611 //
1612 //
1613 if (parin) (*parin)=paramIn;
1614 if (parout) (*parout)=paramOut;
6e23caff 1615 delete track;
be34cb88 1616 return ncl;
87e92a27 1617}
1618
1619
1620
1621Bool_t AliTPCseed::RefitTrack(AliTPCseed* /*seed*/, Bool_t /*out*/){
1622 //
1623 //
1624 //
1625 return kFALSE;
1626}
3247d397 1627
1628
1629
1630
1631
1632
1633void AliTPCseed::GetError(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
1634 Double_t& erry, Double_t &errz)
1635{
1636 //
1637 // Get cluster error at given position
1638 //
1639 AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam();
1640 Double_t tany,tanz;
1641 Double_t snp1=param->GetSnp();
60e55aee 1642 tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1643 //
1644 Double_t tgl1=param->GetTgl();
60e55aee 1645 tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1646 //
1647 Int_t padSize = 0; // short pads
1648 if (cluster->GetDetector() >= 36) {
1649 padSize = 1; // medium pads
1650 if (cluster->GetRow() > 63) padSize = 2; // long pads
1651 }
1652
1653 erry = clusterParam->GetError0Par( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany) );
1654 errz = clusterParam->GetError0Par( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) );
1655}
1656
1657
1658void AliTPCseed::GetShape(AliTPCclusterMI* cluster, AliExternalTrackParam * param,
1659 Double_t& rmsy, Double_t &rmsz)
1660{
1661 //
1662 // Get cluster error at given position
1663 //
1664 AliTPCClusterParam *clusterParam = AliTPCcalibDB::Instance()->GetClusterParam();
1665 Double_t tany,tanz;
1666 Double_t snp1=param->GetSnp();
60e55aee 1667 tany=snp1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1668 //
1669 Double_t tgl1=param->GetTgl();
60e55aee 1670 tanz=tgl1/TMath::Sqrt((1.-snp1)*(1.+snp1));
3247d397 1671 //
1672 Int_t padSize = 0; // short pads
1673 if (cluster->GetDetector() >= 36) {
1674 padSize = 1; // medium pads
1675 if (cluster->GetRow() > 63) padSize = 2; // long pads
1676 }
1677
1678 rmsy = clusterParam->GetRMSQ( 0, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tany), TMath::Abs(cluster->GetMax()) );
1679 rmsz = clusterParam->GetRMSQ( 1, padSize, (250.0 - TMath::Abs(cluster->GetZ())), TMath::Abs(tanz) ,TMath::Abs(cluster->GetMax()));
1680}
ba5e52fb 1681
1682
1683
1684Double_t AliTPCseed::GetQCorrGeom(Float_t ty, Float_t tz){
1685 //Geoetrical
1686 //ty - tangent in local y direction
1687 //tz - tangent
1688 //
1689 Float_t norm=TMath::Sqrt(1+ty*ty+tz*tz);
1690 return norm;
1691}
1692
83afd539 1693Double_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 1694 //
1695 // Q normalization
1696 //
1697 // return value = Q Normalization factor
1698 // Normalization - 1 - shape factor part for full drift
1699 // 1 - electron attachment for 0 drift
1700
1701 // Input parameters:
1702 //
1703 // ipad - 0 short pad
1704 // 1 medium pad
1705 // 2 long pad
1706 //
1707 // type - 0 qmax
1708 // - 1 qtot
1709 //
1710 //z - z position (-250,250 cm)
1711 //ty - tangent in local y direction
1712 //tz - tangent
1713 //
1714
1715 AliTPCClusterParam * paramCl = AliTPCcalibDB::Instance()->GetClusterParam();
1716 AliTPCParam * paramTPC = AliTPCcalibDB::Instance()->GetParameters();
1717
1718 if (!paramCl) return 1;
1719 //
1720 Double_t dr = 250.-TMath::Abs(z);
1721 Double_t sy = paramCl->GetRMS0( 0,ipad, dr, TMath::Abs(ty));
1722 Double_t sy0= paramCl->GetRMS0(0,ipad, 250, 0);
1723 Double_t sz = paramCl->GetRMS0( 1,ipad, dr, TMath::Abs(tz));
1724 Double_t sz0= paramCl->GetRMS0(1,ipad, 250, 0);
1725
1726 Double_t sfactorMax = TMath::Sqrt(sy0*sz0/(sy*sz));
1727
1728
1729 Double_t dt = 1000000*(dr/paramTPC->GetDriftV()); //time in microsecond
1730 Double_t attProb = TMath::Exp(-paramTPC->GetAttCoef()*paramTPC->GetOxyCont()*dt);
1731 //
1732 //
1733 if (type==0) return sfactorMax*attProb;
1734
1735 return attProb;
1736
1737
1738}
1739
64bf5ca0 1740
19e8ad6c 1741/*
64bf5ca0 1742//_______________________________________________________________________
19e8ad6c 1743Float_t AliTPCseed::GetTPCClustInfo(Int_t nNeighbours, Int_t type, Int_t row0, Int_t row1, TVectorT<float> *returnVec)
64bf5ca0 1744{
1745 //
1746 // TPC cluster information
1747 // type 0: get fraction of found/findable clusters with neighbourhood definition
1748 // 1: found clusters
1749 // 2: findable (number of clusters above and below threshold)
1750 //
1751 // definition of findable clusters:
1752 // a cluster is defined as findable if there is another cluster
1753 // within +- nNeighbours pad rows. The idea is to overcome threshold
1754 // effects with a very simple algorithm.
1755 //
1756
1757 const Float_t kClusterShapeCut = 1.5; // IMPPRTANT TO DO: move value to AliTPCRecoParam
1758 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
1759 const Float_t kedgey =3.;
1760
1761 Float_t ncl = 0;
1762 Float_t nclBelowThr = 0; // counts number of clusters below threshold
1763
1764 for (Int_t irow=row0; irow<row1; irow++){
1765 AliTPCclusterMI* cluster = GetClusterPointer(irow);
1766
1767 if (!cluster && irow > 1 && irow < 157) {
1768 Bool_t isClBefore = kFALSE;
1769 Bool_t isClAfter = kFALSE;
1770 for(Int_t ithres = 1; ithres <= nNeighbours; ithres++) {
1771 AliTPCclusterMI * clusterBefore = GetClusterPointer(irow - ithres);
1772 if (clusterBefore) isClBefore = kTRUE;
1773 AliTPCclusterMI * clusterAfter = GetClusterPointer(irow + ithres);
1774 if (clusterAfter) isClAfter = kTRUE;
1775 }
1776 if (isClBefore && isClAfter) nclBelowThr++;
1777 }
1778 if (!cluster) continue;
1779 //
1780 //
1781 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
1782 //
1783 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1784 if (point==0) continue;
1785 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1786 if (rsigmay > kClusterShapeCut) continue;
1787 //
1788 if (cluster->IsUsed(11)) continue; // remove shared clusters for PbPb
1789 ncl++;
1790 }
19e8ad6c 1791 if(returnVec->GetNoElements != 3){
1792 returnVec->ResizeTo(3);
1793 }
1794 Float_t nclAll = nclBelowThr+ncl;
1795 returnVec(0) = nclAll>0?ncl/nclAll:0;
1796 returnVec(1) = ncl;
1797 returnVec(2) = nclAll;
64bf5ca0 1798
1799 if(ncl<10)
1800 return 0;
1801 if(type==0)
19e8ad6c 1802 if(nclAll>0)
1803 return ncl/nclAll;
64bf5ca0 1804 if(type==1)
1805 return ncl;
1806 if(type==2)
19e8ad6c 1807 return nclAll;
64bf5ca0 1808 return 0;
1809}
19e8ad6c 1810*/
1791d824 1811//_______________________________________________________________________
1812Int_t AliTPCseed::GetNumberOfClustersIndices() {
1813 Int_t ncls = 0;
1814 for (int i=0; i < 160; i++) {
1815 if ((fIndex[i] & 0x8000) == 0)
1816 ncls++;
1817 }
1818 return ncls;
1819}
f06a1ff6 1820
1821//_______________________________________________________________________
1822void AliTPCseed::Clear(Option_t*)
1823{
1824 // formally seed may allocate memory for clusters (althought this should not happen for
1825 // the seeds in the pool). Hence we need this method for fwd. compatibility
1826 if (fClusterOwner) for (int i=160;i--;) {delete fClusterPointer[i]; fClusterPointer[i] = 0;}
1827}
24aea01c 1828
19e8ad6c 1829TObject* AliTPCseed::Clone(const char* /*newname*/) const
24aea01c 1830{
1831 // temporary override TObject::Clone to avoid crashes in reco
1832 AliTPCseed* src = (AliTPCseed*)this;
1833 AliTPCseed* dst = new AliTPCseed(*src,fClusterOwner);
1834 return dst;
1835}