1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //--------------------------------------------------------------------//
18 // AliTOFtrackerV1 Class //
19 // Task: Perform association of the ESD tracks to TOF Clusters //
20 // and Update ESD track with associated TOF Cluster parameters //
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 //
27 //--------------------------------------------------------------------//
32 #include <TClonesArray.h>
37 #include <TSeqCollection.h>
39 #include "AliESDtrack.h"
40 #include "AliESDEvent.h"
42 #include "AliTrackPointArray.h"
43 #include "AliGeomManager.h"
44 #include "AliCDBManager.h"
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"
56 ClassImp(AliTOFtrackerV1)
58 //_____________________________________________________________________________
59 AliTOFtrackerV1::AliTOFtrackerV1():
69 fTracks(new TClonesArray("AliTOFtrack")),
70 fSeeds(new TClonesArray("AliESDtrack")),
83 //AliTOFtrackerV1 main Ctor
88 //_____________________________________________________________________________
89 AliTOFtrackerV1::~AliTOFtrackerV1() {
96 if(!(AliCDBManager::Instance()->GetCacheFlag())){
102 delete fHDigClusTime;
109 delete fHRecSigYVsPWin;
110 delete fHRecSigZVsPWin;
122 //_____________________________________________________________________________
123 Int_t AliTOFtrackerV1::PropagateBack(AliESDEvent* event) {
125 // Gets seeds from ESD event and Match with TOF Clusters
128 // initialize RecoParam for current event
130 AliInfo("Initializing params for TOF... ");
132 fRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER...
134 if (fRecoParam == 0x0) {
135 AliFatal("No Reco Param found for TOF!!!");
137 //fRecoParam->Dump();
138 //if(fRecoParam->GetApplyPbPbCuts())fRecoParam=fRecoParam->GetPbPbparam();
139 //fRecoParam->PrintParameters();
142 parPID[0]=fRecoParam->GetTimeResolution();
143 parPID[1]=fRecoParam->GetTimeNSigma();
144 fPid=new AliTOFpidESD(parPID);
146 //Initialise some counters
155 Int_t ntrk=event->GetNumberOfTracks();
157 TClonesArray &aESDTrack = *fSeeds;
160 //Load ESD tracks into a local Array of ESD Seeds
162 for (Int_t i=0; i<fNseeds; i++) {
163 AliESDtrack *t=event->GetTrack(i);
164 new(aESDTrack[i]) AliESDtrack(*t);
167 //Prepare ESD tracks candidates for TOF Matching
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));
177 //Update the matched ESD tracks
179 for (Int_t i=0; i<ntrk; i++) {
180 AliESDtrack *t=event->GetTrack(i);
181 AliESDtrack *seed =(AliESDtrack*)fSeeds->UncheckedAt(i);
183 if ( (seed->GetStatus()&AliESDtrack::kTOFin)!=0 ) {
184 t->SetStatus(AliESDtrack::kTOFin);
185 //if(seed->GetTOFsignal()>0){
186 if ( (seed->GetStatus()&AliESDtrack::kTOFout)!=0 ) {
187 t->SetStatus(AliESDtrack::kTOFout);
188 t->SetTOFsignal(seed->GetTOFsignal());
189 t->SetTOFcluster(seed->GetTOFcluster());
190 t->SetTOFsignalToT(seed->GetTOFsignalToT());
191 t->SetTOFsignalRaw(seed->GetTOFsignalRaw());
192 t->SetTOFsignalDz(seed->GetTOFsignalDz());
193 t->SetTOFsignalDx(seed->GetTOFsignalDx());
194 t->SetTOFCalChannel(seed->GetTOFCalChannel());
195 Int_t tlab[3]; seed->GetTOFLabel(tlab);
196 t->SetTOFLabel(tlab);
198 Float_t info[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
199 seed->GetTOFInfo(info);
201 AliDebug(2,Form(" distance=%f; residual in the pad reference frame: dX=%f, dZ=%f", info[0],info[1],info[2]));
203 AliTOFtrack *track = new AliTOFtrack(*seed);
204 t->UpdateTrackParams(track,AliESDtrack::kTOFout); // to be checked - AdC
207 Double_t time[10]; t->GetIntegratedTimes(time);
208 AliDebug(2,Form(" %6d %f %f %f %f % %6d %3d %f %f %f %f %f %f",
210 t->GetTOFsignalRaw(),
212 t->GetTOFsignalToT(),
215 t->GetTOFCalChannel(),
217 t->GetIntegratedLength(),
218 time[0], time[1], time[2], time[3], time[4]
225 //Handle Time Zero information
227 Double_t timeZero=0.;
228 Double_t timeZeroMax=99999.;
229 Bool_t usetimeZero = fRecoParam->UseTimeZero();
230 Bool_t timeZeroFromT0 = fRecoParam->GetTimeZerofromT0();
231 Bool_t timeZeroFromTOF = fRecoParam->GetTimeZerofromTOF();
233 AliDebug(2,Form("Use Time Zero?: %d",usetimeZero));
234 AliDebug(2,Form("Time Zero from T0? : %d",timeZeroFromT0));
235 AliDebug(2,Form("Time Zero From TOF? : %d",timeZeroFromTOF));
239 timeZero=GetTimeZerofromT0(event);
241 if(timeZeroFromTOF && (timeZero>timeZeroMax || !timeZeroFromT0)){
242 timeZero=GetTimeZerofromTOF(event);
245 AliDebug(2,Form("time Zero used in PID: %f",timeZero));
247 fPid->MakePID(event,timeZero);
254 //_________________________________________________________________________
255 void AliTOFtrackerV1::CollectESD() {
256 //prepare the set of ESD tracks to be matched to clusters in TOF
261 TClonesArray &aTOFTrack = *fTracks;
262 for (Int_t i=0; i<fNseeds; i++) {
264 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i);
265 if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
267 AliTOFtrack *track = new AliTOFtrack(*t); // New
268 Float_t x = (Float_t)track->GetX(); //New
270 // TRD 'good' tracks, already propagated at 371 cm
271 if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) &&
272 ( x >= AliTOFGeometry::Rmin() ) ) {
273 if ( track->PropagateToInnerTOF() ) {
275 AliDebug(1,Form(" TRD propagated track till rho = %fcm."
276 " And then the track has been propagated till rho = %fcm.",
277 x, (Float_t)track->GetX()));
279 track->SetSeedIndex(i);
280 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
281 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
288 // Propagate the rest of TPCbp
290 if ( track->PropagateToInnerTOF() ) {
292 AliDebug(1,Form(" TRD propagated track till rho = %fcm."
293 " And then the track has been propagated till rho = %fcm.",
294 x, (Float_t)track->GetX()));
296 track->SetSeedIndex(i);
297 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
298 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
306 AliInfo(Form("Number of TOF seeds %d",fNseedsTOF));
307 AliInfo(Form("Number of TOF seeds Type 1 %d",seedsTOF1));
308 AliInfo(Form("Number of TOF seeds Type 2 %d",seedsTOF2));
310 // Sort according uncertainties on track position
314 //_________________________________________________________________________
315 void AliTOFtrackerV1::MatchTracks( ){
317 //Match ESD tracks to clusters in TOF
321 // Parameters regulating the reconstruction
322 Float_t dY=AliTOFGeometry::XPad();
323 Float_t dZ=AliTOFGeometry::ZPad();
325 const Float_t kTimeOffset = 32.; // time offset for tracking algorithm [ps]
327 const Int_t kncmax = 100;
328 Float_t sensRadius = fRecoParam->GetSensRadius();
329 Float_t scaleFact = fRecoParam->GetWindowScaleFact();
330 Float_t dyMax=fRecoParam->GetWindowSizeMaxY();
331 Float_t dzMax=fRecoParam->GetWindowSizeMaxZ();
332 Double_t maxChi2=fRecoParam->GetMaxChi2();
333 Bool_t timeWalkCorr = fRecoParam->GetTimeWalkCorr();
334 AliDebug(1,"++++++++++++++TOF Reconstruction Parameters:++++++++++++ \n");
335 AliDebug(1,Form("TOF sens radius: %f",sensRadius));
336 AliDebug(1,Form("TOF Window scale factor: %f",scaleFact));
337 AliDebug(1,Form("TOF Window max dy: %f",dyMax));
338 AliDebug(1,Form("TOF Window max dz: %f",dzMax));
339 AliDebug(1,Form("TOF Max Chi2: %f",maxChi2));
340 AliDebug(1,Form("Time Walk Correction? : %d",timeWalkCorr));
344 for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
346 AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(iseed);
347 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex());
348 //if ( t->GetTOFsignal()>0. ) continue;
349 if ( (t->GetStatus()&AliESDtrack::kTOFout)!=0 ) continue;
350 AliTOFtrack *trackTOFin =new AliTOFtrack(*track);
352 // Determine a window around the track
353 Double_t x,par[5]; trackTOFin->GetExternalParameters(x,par);
354 Double_t cov[15]; trackTOFin->GetExternalCovariance(cov);
356 if (cov[0]<0. || cov[2]<0.) {
357 AliWarning(Form("Very strange track (%d)! At least one of its covariance matrix diagonal elements is negative!",iseed));
363 Double_t dz = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[2])+dZ*dZ/12.);
364 Double_t dphi = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[0])+dY*dY/12.)/sensRadius;
366 Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha();
367 if (phi<-TMath::Pi())phi+=2*TMath::Pi();
368 if (phi>=TMath::Pi())phi-=2*TMath::Pi();
370 //upper limit on window's size.
371 if(dz> dzMax) dz=dzMax;
372 if(dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
374 // find the clusters inside the selected window
376 AliTOFcluster *clusters[kncmax]; // pointers to the clusters in the window
377 Int_t index[kncmax];//to keep track of the cluster index
378 for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) {
379 AliTOFcluster *c=fClusters[k];
380 // if(nc>kncmax)break; /* R+ fix (buffer overflow) */
382 AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size.");
383 break; /* R+ fix (buffer overflow protection) */
385 if(c->GetZ() > z+dz) break;
386 if(c->IsUsed()) continue;
387 if(!c->GetStatus()) {
388 AliDebug(1,"Cluster in channel declared bad!");
389 continue; // skip bad channels as declared in OCDB
391 Float_t xyz[3]; c->GetGlobalXYZ(xyz);
392 Double_t clPhi=TMath::ATan2(xyz[1],xyz[0]);
393 Double_t dph=TMath::Abs(clPhi-phi);
394 if (dph>TMath::Pi()) dph-=2.*TMath::Pi();
395 if (TMath::Abs(dph)>dphi) continue;
401 AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",iseed,nc));
403 //start propagation: go to the average TOF pad middle plane at ~379.5 cm
405 Float_t xTOF = sensRadius;
406 Double_t ymax = xTOF*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
407 Bool_t skip = kFALSE;
408 Double_t ysect = trackTOFin->GetYat(xTOF,skip);
411 if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) {
414 } else if (ysect <-ymax) {
415 if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) {
419 if(!trackTOFin->PropagateTo(xTOF)) {
424 AliTOFcluster *bestCluster=0;
425 Double_t bestChi2=maxChi2;
427 // for (Int_t i=0; i<nc; i++){ /* R+ fix (unsafe) */
428 for (Int_t i=0; i<nc && i<kncmax; i++){ /* R+ fix (buffer overflow protection) */
429 AliTOFcluster *c=clusters[i]; // one of the preselected clusters
430 Double_t chi2=trackTOFin->GetPredictedChi2((AliCluster3D*)c);
431 if (chi2 >= bestChi2) continue;
437 if (!bestCluster) { // no matching , go to the next track
445 AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i",
448 TMath::Abs(trackTOFin->GetLabel()),
449 bestCluster->GetLabel(0),
450 bestCluster->GetLabel(1),
451 bestCluster->GetLabel(2),
456 (bestCluster->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel()))
458 (bestCluster->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel()))
460 (bestCluster->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel()))
463 AliDebug(2,Form(" track label good %5d",trackTOFin->GetLabel()));
468 AliDebug(2,Form(" track label bad %5d",trackTOFin->GetLabel()));
471 //Propagate the track to the best matched cluster
472 trackTOFin->PropagateTo(bestCluster);
474 // Fill the track residual histograms.
475 FillResiduals(trackTOFin,bestCluster,kFALSE);
477 //now take the local distance in Z from the pad center for time walk correction
478 Float_t tiltangle = AliTOFGeometry::GetAngles(bestCluster->GetDetInd(1),bestCluster->GetDetInd(2))*TMath::DegToRad();
479 Double_t dzTW=trackTOFin->GetZ()-bestCluster->GetZ(); // in cm - in the ALICE RF -
480 dzTW/=TMath::Cos(tiltangle); // from ALICE/tracking RF to pad RF (1)
481 dzTW=-dzTW; // from ALICE/tracking RF to pad RF (2)
482 if (tiltangle!=0.) AliDebug(2,Form(" rho_track = %f --- rho_cluster = %f ",trackTOFin->GetX(),bestCluster->GetX()));
484 //update the ESD track and delete the TOFtrack
485 t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
487 // Store quantities to be used in the TOF Calibration
488 Float_t tToT=AliTOFGeometry::ToTBinWidth()*bestCluster->GetToT()*1E-3; // in ns
489 t->SetTOFsignalToT(tToT);
490 Float_t rawTime=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDCRAW()+kTimeOffset; // RAW time,in ps
491 t->SetTOFsignalRaw(rawTime);
492 t->SetTOFsignalDz(dzTW);
494 Float_t deltaY = trackTOFin->GetY()-bestCluster->GetY();
495 t->SetTOFsignalDx(deltaY);
497 Float_t distR = (trackTOFin->GetX()-bestCluster->GetX())*
498 (trackTOFin->GetX()-bestCluster->GetX());
499 distR+=deltaY*deltaY;
501 distR = TMath::Sqrt(distR);
502 Float_t info[10] = {distR, deltaY, dzTW,
503 0.,0.,0.,0.,0.,0.,0.};
507 ind[0]=bestCluster->GetDetInd(0);
508 ind[1]=bestCluster->GetDetInd(1);
509 ind[2]=bestCluster->GetDetInd(2);
510 ind[3]=bestCluster->GetDetInd(3);
511 ind[4]=bestCluster->GetDetInd(4);
512 Int_t calindex = AliTOFGeometry::GetIndex(ind);
513 t->SetTOFCalChannel(calindex);
515 // keep track of the track labels in the matched cluster
517 tlab[0]=bestCluster->GetLabel(0);
518 tlab[1]=bestCluster->GetLabel(1);
519 tlab[2]=bestCluster->GetLabel(2);
520 AliDebug(2,Form(" tdc time of the matched track %6d = ",bestCluster->GetTDC()));
521 Double_t tof=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDC()+kTimeOffset; // in ps
522 AliDebug(2,Form(" tof time of the matched track: %f = ",tof));
523 Double_t tofcorr=tof;
524 if(timeWalkCorr)tofcorr=CorrectTimeWalk(dzTW,tof);
525 AliDebug(2,Form(" tof time of the matched track, after TW corr: %f = ",tofcorr));
526 //Set TOF time signal and pointer to the matched cluster
527 t->SetTOFsignal(tofcorr);
528 t->SetTOFcluster(idclus); // pointing to the recPoints tree
529 t->SetTOFLabel(tlab);
531 AliDebug(2,Form(" Setting TOF raw time: %f z distance: %f corrected time: %f",rawTime,dzTW,tofcorr));
533 Double_t mom=t->GetP();
534 AliDebug(2,Form(" Momentum for track %d -> %f", iseed,mom));
535 // Fill Reco-QA histos for Reconstruction
536 fHRecNClus->Fill(nc);
537 fHRecChi2->Fill(bestChi2);
538 fHRecDistZ->Fill(dzTW);
539 fHRecSigYVsP->Fill(mom,TMath::Sqrt(cov[0]));
540 fHRecSigZVsP->Fill(mom,TMath::Sqrt(cov[2]));
541 fHRecSigYVsPWin->Fill(mom,dphi*sensRadius);
542 fHRecSigZVsPWin->Fill(mom,dz);
544 // Fill Tree for on-the-fly offline Calibration
545 // no longer there - all info is in the ESDs now
551 //_________________________________________________________________________
552 Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
553 //--------------------------------------------------------------------
554 //This function loads the TOF clusters
555 //--------------------------------------------------------------------
557 Int_t npadX = AliTOFGeometry::NpadX();
558 Int_t npadZ = AliTOFGeometry::NpadZ();
559 Int_t nStripA = AliTOFGeometry::NStripA();
560 Int_t nStripB = AliTOFGeometry::NStripB();
561 Int_t nStripC = AliTOFGeometry::NStripC();
563 TBranch *branch=cTree->GetBranch("TOF");
565 AliError("can't get the branch with the TOF clusters !");
569 static TClonesArray dummy("AliTOFcluster",10000);
571 TClonesArray *clusters=&dummy;
572 branch->SetAddress(&clusters);
575 Int_t nc=clusters->GetEntriesFast();
576 fHDigNClus->Fill(nc);
578 AliInfo(Form("Number of clusters: %d",nc));
580 for (Int_t i=0; i<nc; i++) {
581 AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
582 fClusters[i]=new AliTOFcluster(*c); fN++;
584 // Fill Digits QA histos
586 Int_t isector = c->GetDetInd(0);
587 Int_t iplate = c->GetDetInd(1);
588 Int_t istrip = c->GetDetInd(2);
589 Int_t ipadX = c->GetDetInd(4);
590 Int_t ipadZ = c->GetDetInd(3);
592 Float_t time =(AliTOFGeometry::TdcBinWidth()*c->GetTDC())*1E-3; // in ns
593 Float_t tot = (AliTOFGeometry::TdcBinWidth()*c->GetToT())*1E-3;//in ns
595 Int_t stripOffset = 0;
601 stripOffset = nStripC;
604 stripOffset = nStripC+nStripB;
607 stripOffset = nStripC+nStripB+nStripA;
610 stripOffset = nStripC+nStripB+nStripA+nStripB;
613 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
616 Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
617 Int_t phiindex=npadX*isector+ipadX+1;
618 fHDigClusMap->Fill(zindex,phiindex);
619 fHDigClusTime->Fill(time);
620 fHDigClusToT->Fill(tot);
626 //_________________________________________________________________________
627 void AliTOFtrackerV1::UnloadClusters() {
628 //--------------------------------------------------------------------
629 //This function unloads TOF clusters
630 //--------------------------------------------------------------------
631 for (Int_t i=0; i<fN; i++) {
638 //_________________________________________________________________________
639 Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
640 //--------------------------------------------------------------------
641 // This function returns the index of the nearest cluster
642 //--------------------------------------------------------------------
644 //Here we need to get the Z in the tracking system
647 if (z <= fClusters[0]->GetZ()) return 0;
648 if (z > fClusters[fN-1]->GetZ()) return fN;
649 Int_t b=0, e=fN-1, m=(b+e)/2;
650 for (; b<e; m=(b+e)/2) {
651 if (z > fClusters[m]->GetZ()) b=m+1;
657 //_________________________________________________________________________
658 Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
660 // Get track space point with index i
661 // Coordinates are in the global system
662 AliTOFcluster *cl = fClusters[index];
664 cl->GetGlobalXYZ(xyz);
665 Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
666 Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
667 Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
668 Float_t tiltangle = AliTOFGeometry::GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
669 Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
670 Float_t sigmay2 = AliTOFGeometry::XPad()*AliTOFGeometry::XPad()/12.;
671 Float_t sigmaz2 = AliTOFGeometry::ZPad()*AliTOFGeometry::ZPad()/12.;
673 cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
674 cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
675 cov[2] = -cosphi*sinth*costh*sigmaz2;
676 cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
677 cov[4] = -sinphi*sinth*costh*sigmaz2;
678 cov[5] = costh*costh*sigmaz2;
679 p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
681 // Detector numbering scheme
682 Int_t nSector = AliTOFGeometry::NSectors();
683 Int_t nPlate = AliTOFGeometry::NPlates();
684 Int_t nStripA = AliTOFGeometry::NStripA();
685 Int_t nStripB = AliTOFGeometry::NStripB();
686 Int_t nStripC = AliTOFGeometry::NStripC();
688 Int_t isector = cl->GetDetInd(0);
689 if (isector >= nSector)
690 AliError(Form("Wrong sector number in TOF (%d) !",isector));
691 Int_t iplate = cl->GetDetInd(1);
692 if (iplate >= nPlate)
693 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
694 Int_t istrip = cl->GetDetInd(2);
696 Int_t stripOffset = 0;
702 stripOffset = nStripC;
705 stripOffset = nStripC+nStripB;
708 stripOffset = nStripC+nStripB+nStripA;
711 stripOffset = nStripC+nStripB+nStripA+nStripB;
714 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
718 Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
721 UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
722 p.SetVolumeID((UShort_t)volid);
725 //_________________________________________________________________________
726 void AliTOFtrackerV1::InitCheckHists() {
728 //Init histos for Digits/Reco QA and Calibration
730 TDirectory *dir = gDirectory;
731 TFile *logFileTOF = 0;
733 TSeqCollection *list = gROOT->GetListOfFiles();
734 int n = list->GetEntries();
735 Bool_t isThere=kFALSE;
736 for(int i=0; i<n; i++) {
737 logFileTOF = (TFile*)list->At(i);
738 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
744 if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
748 fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
749 fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
750 fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
751 fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
754 fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
755 fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
756 fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
757 fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
758 fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
759 fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
760 fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
766 //_________________________________________________________________________
767 void AliTOFtrackerV1::SaveCheckHists() {
769 //write histos for Digits/Reco QA and Calibration
771 TDirectory *dir = gDirectory;
773 TFile *logFileTOF = 0;
775 TSeqCollection *list = gROOT->GetListOfFiles();
776 int n = list->GetEntries();
777 for(int i=0; i<n; i++) {
778 logFile = (TFile*)list->At(i);
779 if (strstr(logFile->GetName(), "AliESDs.root")) break;
782 Bool_t isThere=kFALSE;
783 for(int i=0; i<n; i++) {
784 logFileTOF = (TFile*)list->At(i);
785 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
792 AliError(Form("File TOFQA.root not found!! not wring histograms...."));
796 fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
797 fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
798 fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
799 fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
800 fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
801 fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
802 fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
803 fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
804 fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
805 fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
806 fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
812 //_________________________________________________________________________
813 Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) {
815 //dummy, for the moment
817 if(dist<AliTOFGeometry::ZPad()*0.5){
819 //place here the actual correction
825 //_________________________________________________________________________
826 Float_t AliTOFtrackerV1::GetTimeZerofromT0(AliESDEvent *event) const {
828 //Returns TimeZero as measured by T0 detector
830 return event->GetT0();
832 //_________________________________________________________________________
833 Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
835 //dummy, for the moment. T0 algorithm using tracks on TOF
837 //place T0 algo here...
841 //_________________________________________________________________________
843 void AliTOFtrackerV1::FillClusterArray(TObjArray* arr) const
846 // Returns the TOF cluster array
852 for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]);