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d686d062 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// AliTOFtrackerV1 Class //
19// Task: Perform association of the ESD tracks to TOF Clusters //
20// and Update ESD track with associated TOF Cluster parameters //
21// //
22// -- Authors : S. Arcelli, C. Zampolli (Bologna University and INFN) //
23// -- Contacts: Annalisa.De.Caro@cern.ch //
24// -- : Chiara.Zampolli@bo.infn.it //
25// -- : Silvia.Arcelli@bo.infn.it //
26// //
27//--------------------------------------------------------------------//
28
29#include <Rtypes.h>
30#include <TROOT.h>
31
32#include <TClonesArray.h>
33#include <TTree.h>
34#include <TFile.h>
35#include <TH1F.h>
36#include <TH2F.h>
5c7c93fa 37#include <TSeqCollection.h>
d686d062 38
d686d062 39#include "AliESDtrack.h"
40#include "AliESDEvent.h"
41#include "AliLog.h"
42#include "AliTrackPointArray.h"
5c7c93fa 43#include "AliGeomManager.h"
44#include "AliCDBManager.h"
d686d062 45
46#include "AliTOFcalib.h"
47#include "AliTOFRecoParam.h"
48#include "AliTOFcluster.h"
ca270b6d 49#include "AliTOFGeometry.h"
d686d062 50#include "AliTOFtrackerV1.h"
51#include "AliTOFtrack.h"
5c7c93fa 52#include "AliTOFpidESD.h"
d0c2872c 53
d686d062 54extern TROOT *gROOT;
55
56ClassImp(AliTOFtrackerV1)
57
58//_____________________________________________________________________________
59AliTOFtrackerV1::AliTOFtrackerV1():
60 fRecoParam(0x0),
d686d062 61 fPid(0x0),
62 fN(0),
63 fNseeds(0),
64 fNseedsTOF(0),
65 fngoodmatch(0),
66 fnbadmatch(0),
67 fnunmatch(0),
68 fnmatch(0),
b42a5ea1 69 fTracks(new TClonesArray("AliTOFtrack")),
70 fSeeds(new TClonesArray("AliESDtrack")),
d686d062 71 fHDigClusMap(0x0),
72 fHDigNClus(0x0),
73 fHDigClusTime(0x0),
74 fHDigClusToT(0x0),
75 fHRecNClus(0x0),
76 fHRecChi2(0x0),
77 fHRecDistZ(0x0),
78 fHRecSigYVsP(0x0),
79 fHRecSigZVsP(0x0),
80 fHRecSigYVsPWin(0x0),
81 fHRecSigZVsPWin(0x0)
82 {
83 //AliTOFtrackerV1 main Ctor
84
d686d062 85 // Read the reconstruction parameters from the OCDB
ca270b6d 86 AliTOFcalib *calib = new AliTOFcalib();
d686d062 87 fRecoParam = (AliTOFRecoParam*)calib->ReadRecParFromCDB("TOF/Calib",-1);
88 if(fRecoParam->GetApplyPbPbCuts())fRecoParam=fRecoParam->GetPbPbparam();
d686d062 89 Double_t parPID[2];
90 parPID[0]=fRecoParam->GetTimeResolution();
91 parPID[1]=fRecoParam->GetTimeNSigma();
92 fPid=new AliTOFpidESD(parPID);
93 InitCheckHists();
ca270b6d 94 delete calib;
d686d062 95
96}
97//_____________________________________________________________________________
98AliTOFtrackerV1::AliTOFtrackerV1(const AliTOFtrackerV1 &t):
99 AliTracker(),
100 fRecoParam(0x0),
d686d062 101 fPid(0x0),
102 fN(0),
103 fNseeds(0),
104 fNseedsTOF(0),
105 fngoodmatch(0),
106 fnbadmatch(0),
107 fnunmatch(0),
108 fnmatch(0),
b42a5ea1 109 fTracks(new TClonesArray("AliTOFtrack")),
110 fSeeds(new TClonesArray("AliESDtrack")),
d686d062 111 fHDigClusMap(0x0),
112 fHDigNClus(0x0),
113 fHDigClusTime(0x0),
114 fHDigClusToT(0x0),
115 fHRecNClus(0x0),
116 fHRecChi2(0x0),
117 fHRecDistZ(0x0),
118 fHRecSigYVsP(0x0),
119 fHRecSigZVsP(0x0),
120 fHRecSigYVsPWin(0x0),
121 fHRecSigZVsPWin(0x0)
122 {
123 //AliTOFtrackerV1 copy Ctor
124
125 fNseeds=t.fNseeds;
126 fNseeds=t.fNseeds;
127 fNseedsTOF=t.fNseedsTOF;
128 fngoodmatch=t.fngoodmatch;
129 fnbadmatch=t.fnbadmatch;
130 fnunmatch=t.fnunmatch;
131 fnmatch=t.fnmatch;
132 fRecoParam=t.fRecoParam;
d686d062 133 fPid=t.fPid;
134 fSeeds=t.fSeeds;
135 fTracks=t.fTracks;
136 fN=t.fN;
137}
138
139//_____________________________________________________________________________
140AliTOFtrackerV1& AliTOFtrackerV1::operator=(const AliTOFtrackerV1 &t)
141{
142 //AliTOFtrackerV1 assignment operator
143
144 this->fNseeds=t.fNseeds;
145 this->fNseedsTOF=t.fNseedsTOF;
146 this->fngoodmatch=t.fngoodmatch;
147 this->fnbadmatch=t.fnbadmatch;
148 this->fnunmatch=t.fnunmatch;
149 this->fnmatch=t.fnmatch;
150 this->fRecoParam = t.fRecoParam;
d686d062 151 this->fPid = t.fPid;
152 this->fSeeds=t.fSeeds;
153 this->fTracks=t.fTracks;
154 this->fN=t.fN;
155 return *this;
156
157}
158//_____________________________________________________________________________
159AliTOFtrackerV1::~AliTOFtrackerV1() {
160 //
161 // Dtor
162 //
163
164 SaveCheckHists();
165
5d456bcd 166 if(!(AliCDBManager::Instance()->GetCacheFlag())){
167 delete fRecoParam;
168 }
d686d062 169 delete fPid;
170 delete fHDigClusMap;
171 delete fHDigNClus;
172 delete fHDigClusTime;
173 delete fHDigClusToT;
174 delete fHRecNClus;
175 delete fHRecChi2;
176 delete fHRecDistZ;
177 delete fHRecSigYVsP;
178 delete fHRecSigZVsP;
179 delete fHRecSigYVsPWin;
180 delete fHRecSigZVsPWin;
b42a5ea1 181 if (fTracks){
182 fTracks->Delete();
183 delete fTracks;
184 fTracks=0x0;
185 }
186 if (fSeeds){
187 fSeeds->Delete();
188 delete fSeeds;
189 fSeeds=0x0;
190 }
d686d062 191}
192//_____________________________________________________________________________
193Int_t AliTOFtrackerV1::PropagateBack(AliESDEvent* event) {
194 //
195 // Gets seeds from ESD event and Match with TOF Clusters
196 //
197
198
199 //Initialise some counters
200
201 fNseeds=0;
202 fNseedsTOF=0;
203 fngoodmatch=0;
204 fnbadmatch=0;
205 fnunmatch=0;
206 fnmatch=0;
207
208 Int_t ntrk=event->GetNumberOfTracks();
209 fNseeds = ntrk;
d686d062 210 TClonesArray &aESDTrack = *fSeeds;
211
212
213 //Load ESD tracks into a local Array of ESD Seeds
214
215 for (Int_t i=0; i<fNseeds; i++) {
216 AliESDtrack *t=event->GetTrack(i);
217 new(aESDTrack[i]) AliESDtrack(*t);
218 }
219
220 //Prepare ESD tracks candidates for TOF Matching
221 CollectESD();
222
223 //Matching Step
224 MatchTracks();
225
226 AliInfo(Form("Number of matched tracks: %d",fnmatch));
227 AliInfo(Form("Number of good matched tracks: %d",fngoodmatch));
228 AliInfo(Form("Number of bad matched tracks: %d",fnbadmatch));
229
230 //Update the matched ESD tracks
231
232 for (Int_t i=0; i<ntrk; i++) {
233 AliESDtrack *t=event->GetTrack(i);
234 AliESDtrack *seed =(AliESDtrack*)fSeeds->UncheckedAt(i);
235 if(seed->GetTOFsignal()>0){
236 t->SetTOFsignal(seed->GetTOFsignal());
237 t->SetTOFcluster(seed->GetTOFcluster());
238 t->SetTOFsignalToT(seed->GetTOFsignalToT());
239 t->SetTOFsignalRaw(seed->GetTOFsignalRaw());
240 t->SetTOFsignalDz(seed->GetTOFsignalDz());
241 t->SetTOFCalChannel(seed->GetTOFCalChannel());
242 Int_t tlab[3]; seed->GetTOFLabel(tlab);
243 t->SetTOFLabel(tlab);
244 AliTOFtrack *track = new AliTOFtrack(*seed);
245 t->UpdateTrackParams(track,AliESDtrack::kTOFout);
246 delete track;
247 }
248 }
249
250 //Handle Time Zero information
251
252 Double_t timeZero=0.;
253 Double_t timeZeroMax=99999.;
254 Bool_t usetimeZero = fRecoParam->UseTimeZero();
255 Bool_t timeZeroFromT0 = fRecoParam->GetTimeZerofromT0();
256 Bool_t timeZeroFromTOF = fRecoParam->GetTimeZerofromTOF();
257
258 AliDebug(1,Form("Use Time Zero?: %d",usetimeZero));
259 AliDebug(1,Form("Time Zero from T0? : %d",timeZeroFromT0));
260 AliDebug(1,Form("Time Zero From TOF? : %d",timeZeroFromTOF));
261
262 if(usetimeZero){
263 if(timeZeroFromT0){
264 timeZero=GetTimeZerofromT0(event);
265 }
266 if(timeZeroFromTOF && (timeZero>timeZeroMax || !timeZeroFromT0)){
267 timeZero=GetTimeZerofromTOF(event);
268 }
269 }
270 AliDebug(2,Form("time Zero used in PID: %f",timeZero));
271 //Make TOF PID
272 fPid->MakePID(event,timeZero);
273
b42a5ea1 274 fSeeds->Clear();
275 fTracks->Clear();
d686d062 276 return 0;
277
278}
279//_________________________________________________________________________
280void AliTOFtrackerV1::CollectESD() {
281 //prepare the set of ESD tracks to be matched to clusters in TOF
282
283 Int_t seedsTOF1=0;
284 Int_t seedsTOF2=0;
285
d686d062 286 TClonesArray &aTOFTrack = *fTracks;
287 for (Int_t i=0; i<fNseeds; i++) {
288
289 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i);
290 if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
291
8dacd1bb 292 // TRD 'good' tracks, already propagated at 372 cm
d686d062 293
294 AliTOFtrack *track = new AliTOFtrack(*t); // New
295 Double_t x = track->GetX(); //New
296
297 if (((t->GetStatus()&AliESDtrack::kTRDout)!=0 ) &&
ca270b6d 298 ( x >= AliTOFGeometry::RinTOF()) ){
d686d062 299 track->SetSeedIndex(i);
300 t->UpdateTrackParams(track,AliESDtrack::kTOFout);
301 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
302 fNseedsTOF++;
303 seedsTOF1++;
304 delete track;
305 }
306
307 // Propagate the rest of TPCbp
308
309 else {
310 if(track->PropagateToInnerTOF()){
311 track->SetSeedIndex(i);
312 t->UpdateTrackParams(track,AliESDtrack::kTOFout);
313 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
314 fNseedsTOF++;
315 seedsTOF2++;
316 }
317 delete track;
318 }
319 }
320
321 AliInfo(Form("Number of TOF seeds %i",fNseedsTOF));
322 AliInfo(Form("Number of TOF seeds Type 1 %i",seedsTOF1));
323 AliInfo(Form("Number of TOF seeds Type 2 %i",seedsTOF2));
324
325 // Sort according uncertainties on track position
326 fTracks->Sort();
327
328}
329//_________________________________________________________________________
330void AliTOFtrackerV1::MatchTracks( ){
331 //
332 //Match ESD tracks to clusters in TOF
333 //
334
335
336 // Parameters regulating the reconstruction
ca270b6d 337 Float_t dY=AliTOFGeometry::XPad();
338 Float_t dZ=AliTOFGeometry::ZPad();
d686d062 339
3da9d64f 340 const Int_t kncmax = 100;
d686d062 341 Float_t sensRadius = fRecoParam->GetSensRadius();
342 Float_t scaleFact = fRecoParam->GetWindowScaleFact();
343 Float_t dyMax=fRecoParam->GetWindowSizeMaxY();
344 Float_t dzMax=fRecoParam->GetWindowSizeMaxZ();
345 Double_t maxChi2=fRecoParam->GetMaxChi2();
346 Bool_t timeWalkCorr = fRecoParam->GetTimeWalkCorr();
347 AliDebug(1,"++++++++++++++TOF Reconstruction Parameters:++++++++++++ \n");
348 AliDebug(1,Form("TOF sens radius: %f",sensRadius));
349 AliDebug(1,Form("TOF Window scale factor: %f",scaleFact));
350 AliDebug(1,Form("TOF Window max dy: %f",dyMax));
351 AliDebug(1,Form("TOF Window max dz: %f",dzMax));
352 AliDebug(1,Form("TOF Max Chi2: %f",maxChi2));
353 AliDebug(1,Form("Time Walk Correction? : %d",timeWalkCorr));
354
355
356 //The matching loop
357
d686d062 358 for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
359
360 AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(iseed);
361 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex());
362 if(t->GetTOFsignal()>0. ) continue;
363 AliTOFtrack *trackTOFin =new AliTOFtrack(*track);
364
365 // Determine a window around the track
366 Double_t x,par[5]; trackTOFin->GetExternalParameters(x,par);
367 Double_t cov[15]; trackTOFin->GetExternalCovariance(cov);
368
369 Double_t z = par[1];
370 Double_t dz = scaleFact*3.*TMath::Sqrt(cov[2]+dZ*dZ/12);
371 Double_t dphi = scaleFact*3.*TMath::Sqrt(cov[0]+dY*dY/12.)/sensRadius;
372
373 Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha();
374 if (phi<-TMath::Pi())phi+=2*TMath::Pi();
375 if (phi>=TMath::Pi())phi-=2*TMath::Pi();
376
377 //upper limit on window's size.
378 if(dz> dzMax) dz=dzMax;
379 if(dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
380
381
382 // find the clusters inside the selected window
383 Int_t nc=0;
3da9d64f 384 AliTOFcluster *clusters[kncmax]; // pointers to the clusters in the window
385 Int_t index[kncmax];//to keep track of the cluster index
d686d062 386 for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) {
387 AliTOFcluster *c=fClusters[k];
3da9d64f 388 if(nc>kncmax)break;
d686d062 389 if(c->GetZ() > z+dz) break;
390 if(c->IsUsed()) continue;
17149e6b 391 if(!c->GetStatus()) {
392 AliDebug(1,"Cluster in channel declared bad!");
393 continue; // skip bad channels as declared in OCDB
394 }
d686d062 395 Float_t xyz[3]; c->GetGlobalXYZ(xyz);
396 Double_t clPhi=TMath::ATan2(xyz[1],xyz[0]);
397 Double_t dph=TMath::Abs(clPhi-phi);
398 if (dph>TMath::Pi()) dph-=2.*TMath::Pi();
399 if (TMath::Abs(dph)>dphi) continue;
400 clusters[nc]=c;
401 index[nc] = k;
402 nc++;
403 }
404
8dacd1bb 405 //start propagation: go to the average TOF pad middle plane at ~379.5 cm
d686d062 406
407 Float_t xTOF = sensRadius;
ca270b6d 408 Double_t ymax = xTOF*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
d686d062 409 Bool_t skip = kFALSE;
410 Double_t ysect = trackTOFin->GetYat(xTOF,skip);
411 if (skip) break;
412 if (ysect > ymax) {
ca270b6d 413 if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) {
d686d062 414 break;
415 }
416 } else if (ysect <-ymax) {
ca270b6d 417 if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) {
d686d062 418 break;
419 }
420 }
421 if(!trackTOFin->PropagateTo(xTOF)) {
422 break;
423 }
424
425
426 AliTOFcluster *bestCluster=0;
427 Double_t bestChi2=maxChi2;
428 Int_t idclus=-1;
429 for (Int_t i=0; i<nc; i++){
430 AliTOFcluster *c=clusters[i]; // one of the preselected clusters
431 Double_t chi2=trackTOFin->GetPredictedChi2((AliCluster3D*)c);
432 if (chi2 >= bestChi2) continue;
433 bestChi2=chi2;
434 bestCluster=c;
435 idclus=index[i];
436 }
437
438 if (!bestCluster) { // no matching , go to the next track
439 fnunmatch++;
440 delete trackTOFin;
441 continue;
442 }
443
444 fnmatch++;
32ead898 445
446 AliDebug(2, Form("%7i %7i %10i %10i %10i %10i",
447 iseed,
448 fnmatch,
449 TMath::Abs(trackTOFin->GetLabel()),
450 bestCluster->GetLabel(0),
451 bestCluster->GetLabel(1),
452 bestCluster->GetLabel(2))); // AdC
453
d686d062 454 bestCluster->Use();
455 if (
456 (bestCluster->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel()))
457 ||
458 (bestCluster->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel()))
459 ||
460 (bestCluster->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel()))
461 ) {
462 fngoodmatch++;
463 AliDebug(2,Form(" track label good %5i",trackTOFin->GetLabel()));
464
465 }
466 else{
467 fnbadmatch++;
468 AliDebug(2,Form(" track label bad %5i",trackTOFin->GetLabel()));
469 }
470
471 //Propagate the track to the best matched cluster
472 trackTOFin->PropagateTo(bestCluster);
473
474
475 //now take the local distance in Z from the pad center for time walk correction
ca270b6d 476 Float_t tiltangle = AliTOFGeometry::GetAngles(bestCluster->GetDetInd(1),bestCluster->GetDetInd(2))*TMath::DegToRad();
d686d062 477 Double_t dzTW=trackTOFin->GetZ()-bestCluster->GetZ(); // in cm
478 dzTW/=TMath::Cos(tiltangle);
479
480 //update the ESD track and delete the TOFtrack
481 t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
482 delete trackTOFin;
483
484 // Store quantities to be used in the TOF Calibration
ca270b6d 485 Float_t tToT=AliTOFGeometry::ToTBinWidth()*bestCluster->GetToT()*1E-3; // in ns
d686d062 486 t->SetTOFsignalToT(tToT);
ca270b6d 487 Float_t rawTime=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDCRAW()+32; // RAW time,in ps
d686d062 488 t->SetTOFsignalRaw(rawTime);
489 t->SetTOFsignalDz(dzTW);
490 AliDebug(2,Form(" Setting TOF raw time: %f z distance: %f time: %f = ",rawTime,dzTW));
491 Int_t ind[5];
492 ind[0]=bestCluster->GetDetInd(0);
493 ind[1]=bestCluster->GetDetInd(1);
494 ind[2]=bestCluster->GetDetInd(2);
495 ind[3]=bestCluster->GetDetInd(3);
496 ind[4]=bestCluster->GetDetInd(4);
ca270b6d 497 Int_t calindex = AliTOFGeometry::GetIndex(ind);
d686d062 498 t->SetTOFCalChannel(calindex);
499
500 // keep track of the track labels in the matched cluster
501 Int_t tlab[3];
502 tlab[0]=bestCluster->GetLabel(0);
503 tlab[1]=bestCluster->GetLabel(1);
504 tlab[2]=bestCluster->GetLabel(2);
505 AliDebug(2,Form(" tdc time of the matched track %i = ",bestCluster->GetTDC()));
ca270b6d 506 Double_t tof=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDC()+32; // in ps
d686d062 507 AliDebug(2,Form(" tof time of the matched track: %f = ",tof));
508 Double_t tofcorr=tof;
509 if(timeWalkCorr)tofcorr=CorrectTimeWalk(dzTW,tof);
510 AliDebug(2,Form(" tof time of the matched track, after TW corr: %f = ",tofcorr));
511 //Set TOF time signal and pointer to the matched cluster
512 t->SetTOFsignal(tofcorr);
513 t->SetTOFcluster(idclus); // pointing to the recPoints tree
514 t->SetTOFLabel(tlab);
515
516 Double_t mom=t->GetP();
517 // Fill Reco-QA histos for Reconstruction
518 fHRecNClus->Fill(nc);
519 fHRecChi2->Fill(bestChi2);
520 fHRecDistZ->Fill(dzTW);
521 fHRecSigYVsP->Fill(mom,TMath::Sqrt(cov[0]));
522 fHRecSigZVsP->Fill(mom,TMath::Sqrt(cov[2]));
523 fHRecSigYVsPWin->Fill(mom,dphi*sensRadius);
524 fHRecSigZVsPWin->Fill(mom,dz);
525
526 // Fill Tree for on-the-fly offline Calibration
527 // no longer there - all info is in the ESDs now
528
529 }
d686d062 530
531}
532//_________________________________________________________________________
533Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
534 //--------------------------------------------------------------------
535 //This function loads the TOF clusters
536 //--------------------------------------------------------------------
537
ca270b6d 538 Int_t npadX = AliTOFGeometry::NpadX();
539 Int_t npadZ = AliTOFGeometry::NpadZ();
540 Int_t nStripA = AliTOFGeometry::NStripA();
541 Int_t nStripB = AliTOFGeometry::NStripB();
542 Int_t nStripC = AliTOFGeometry::NStripC();
d686d062 543
544 TBranch *branch=cTree->GetBranch("TOF");
545 if (!branch) {
546 AliError("can't get the branch with the TOF clusters !");
547 return 1;
548 }
549
b42a5ea1 550 static TClonesArray dummy("AliTOFcluster",10000);
551 dummy.Clear();
552 TClonesArray *clusters=&dummy;
d686d062 553 branch->SetAddress(&clusters);
554
555 cTree->GetEvent(0);
556 Int_t nc=clusters->GetEntriesFast();
557 fHDigNClus->Fill(nc);
558
b42a5ea1 559 AliInfo(Form("Number of clusters: %d",nc));
560
d686d062 561 for (Int_t i=0; i<nc; i++) {
562 AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
563 fClusters[i]=new AliTOFcluster(*c); fN++;
564
565 // Fill Digits QA histos
566
567 Int_t isector = c->GetDetInd(0);
568 Int_t iplate = c->GetDetInd(1);
569 Int_t istrip = c->GetDetInd(2);
570 Int_t ipadX = c->GetDetInd(4);
571 Int_t ipadZ = c->GetDetInd(3);
572
ca270b6d 573 Float_t time =(AliTOFGeometry::TdcBinWidth()*c->GetTDC())*1E-3; // in ns
574 Float_t tot = (AliTOFGeometry::TdcBinWidth()*c->GetToT())*1E-3;//in ns
d686d062 575
576 Int_t stripOffset = 0;
577 switch (iplate) {
578 case 0:
579 stripOffset = 0;
580 break;
581 case 1:
582 stripOffset = nStripC;
583 break;
584 case 2:
585 stripOffset = nStripC+nStripB;
586 break;
587 case 3:
588 stripOffset = nStripC+nStripB+nStripA;
589 break;
590 case 4:
591 stripOffset = nStripC+nStripB+nStripA+nStripB;
592 break;
593 default:
594 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
595 break;
596 };
597 Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
598 Int_t phiindex=npadX*isector+ipadX+1;
599 fHDigClusMap->Fill(zindex,phiindex);
600 fHDigClusTime->Fill(time);
601 fHDigClusToT->Fill(tot);
602 }
603
604
605 return 0;
606}
607//_________________________________________________________________________
608void AliTOFtrackerV1::UnloadClusters() {
609 //--------------------------------------------------------------------
610 //This function unloads TOF clusters
611 //--------------------------------------------------------------------
612 for (Int_t i=0; i<fN; i++) {
613 delete fClusters[i];
614 fClusters[i] = 0x0;
615 }
616 fN=0;
617}
618
619//_________________________________________________________________________
620Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
621 //--------------------------------------------------------------------
622 // This function returns the index of the nearest cluster
623 //--------------------------------------------------------------------
624 //MOD
625 //Here we need to get the Z in the tracking system
626
627 if (fN==0) return 0;
628 if (z <= fClusters[0]->GetZ()) return 0;
629 if (z > fClusters[fN-1]->GetZ()) return fN;
630 Int_t b=0, e=fN-1, m=(b+e)/2;
631 for (; b<e; m=(b+e)/2) {
632 if (z > fClusters[m]->GetZ()) b=m+1;
633 else e=m;
634 }
635 return m;
636}
637
638//_________________________________________________________________________
639Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
640{
641 // Get track space point with index i
642 // Coordinates are in the global system
643 AliTOFcluster *cl = fClusters[index];
644 Float_t xyz[3];
645 cl->GetGlobalXYZ(xyz);
646 Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
647 Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
648 Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
ca270b6d 649 Float_t tiltangle = AliTOFGeometry::GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
d686d062 650 Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
ca270b6d 651 Float_t sigmay2 = AliTOFGeometry::XPad()*AliTOFGeometry::XPad()/12.;
652 Float_t sigmaz2 = AliTOFGeometry::ZPad()*AliTOFGeometry::ZPad()/12.;
d686d062 653 Float_t cov[6];
654 cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
655 cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
656 cov[2] = -cosphi*sinth*costh*sigmaz2;
657 cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
658 cov[4] = -sinphi*sinth*costh*sigmaz2;
659 cov[5] = costh*costh*sigmaz2;
660 p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
661
662 // Detector numbering scheme
ca270b6d 663 Int_t nSector = AliTOFGeometry::NSectors();
664 Int_t nPlate = AliTOFGeometry::NPlates();
665 Int_t nStripA = AliTOFGeometry::NStripA();
666 Int_t nStripB = AliTOFGeometry::NStripB();
667 Int_t nStripC = AliTOFGeometry::NStripC();
d686d062 668
669 Int_t isector = cl->GetDetInd(0);
670 if (isector >= nSector)
671 AliError(Form("Wrong sector number in TOF (%d) !",isector));
672 Int_t iplate = cl->GetDetInd(1);
673 if (iplate >= nPlate)
674 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
675 Int_t istrip = cl->GetDetInd(2);
676
677 Int_t stripOffset = 0;
678 switch (iplate) {
679 case 0:
680 stripOffset = 0;
681 break;
682 case 1:
683 stripOffset = nStripC;
684 break;
685 case 2:
686 stripOffset = nStripC+nStripB;
687 break;
688 case 3:
689 stripOffset = nStripC+nStripB+nStripA;
690 break;
691 case 4:
692 stripOffset = nStripC+nStripB+nStripA+nStripB;
693 break;
694 default:
695 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
696 break;
697 };
698
699 Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
700 stripOffset +
701 istrip;
702 UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
703 p.SetVolumeID((UShort_t)volid);
704 return kTRUE;
705}
706//_________________________________________________________________________
707void AliTOFtrackerV1::InitCheckHists() {
708
709 //Init histos for Digits/Reco QA and Calibration
710
711 //Digits "QA"
712 fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
713 fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
714 fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
715 fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
716
717 //Reco "QA"
718 fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
719 fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
720 fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
721 fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
722 fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
723 fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
724 fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
725}
726
727//_________________________________________________________________________
728void AliTOFtrackerV1::SaveCheckHists() {
729
730 //write histos for Digits/Reco QA and Calibration
731
732 TDirectory *dir = gDirectory;
733 TFile *logFile = 0;
734 TFile *logFileTOF = 0;
735
736 TSeqCollection *list = gROOT->GetListOfFiles();
737 int n = list->GetEntries();
738 for(int i=0; i<n; i++) {
739 logFile = (TFile*)list->At(i);
740 if (strstr(logFile->GetName(), "AliESDs.root")) break;
741 }
742
743 Bool_t isThere=kFALSE;
744 for(int i=0; i<n; i++) {
745 logFileTOF = (TFile*)list->At(i);
746 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
747 isThere=kTRUE;
748 break;
749 }
750 }
751
752 logFile->cd();
753 fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
754 fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
755 fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
756 fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
757 fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
758 fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
759 fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
760 fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
761 fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
762 fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
763 fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
764 logFile->Flush();
765
766 if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
767 logFileTOF->cd();
768 fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
769 fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
770 fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
771 fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
772 fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
773 fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
774 fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
775 fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
776 fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
777 fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
778 fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
779 logFileTOF->Flush();
780
781 dir->cd();
782 }
783//_________________________________________________________________________
784Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) {
785
786 //dummy, for the moment
787 Float_t tofcorr=0.;
ca270b6d 788 if(dist<AliTOFGeometry::ZPad()*0.5){
d686d062 789 tofcorr=tof;
790 //place here the actual correction
791 }else{
792 tofcorr=tof;
793 }
794 return tofcorr;
795}
796//_________________________________________________________________________
797Float_t AliTOFtrackerV1::GetTimeZerofromT0(AliESDEvent *event) const {
798
799 //Returns TimeZero as measured by T0 detector
800
801 return event->GetT0();
802}
803//_________________________________________________________________________
804Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
805
806 //dummy, for the moment. T0 algorithm using tracks on TOF
807 {
808 //place T0 algo here...
809 }
810 return 0.;
811}
128563f6 812//_________________________________________________________________________
813
814void AliTOFtrackerV1::FillClusterArray(TObjArray* arr) const
815{
816 //
817 // Returns the TOF cluster array
818 //
819
820 if (fN==0)
821 arr = 0x0;
822 else
823 for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]);
824
825}