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