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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
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);
197
198 Float_t info[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
199 seed->GetTOFInfo(info);
200 t->SetTOFInfo(info);
201 AliDebug(2,Form(" distance=%f; residual in the pad reference frame: dX=%f, dZ=%f", info[0],info[1],info[2]));
202
203 AliTOFtrack *track = new AliTOFtrack(*seed);
204 t->UpdateTrackParams(track,AliESDtrack::kTOFout); // to be checked - AdC
205 delete track;
206
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",
209 i,
210 t->GetTOFsignalRaw(),
211 t->GetTOFsignal(),
212 t->GetTOFsignalToT(),
213 t->GetTOFsignalDz(),
214 t->GetTOFsignalDx(),
215 t->GetTOFCalChannel(),
216 t->GetTOFcluster(),
217 t->GetIntegratedLength(),
218 time[0], time[1], time[2], time[3], time[4]
219 )
220 );
221 }
222 }
223 }
224
225 //Handle Time Zero information
226
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();
232
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));
236
237 if(usetimeZero){
238 if(timeZeroFromT0){
239 timeZero=GetTimeZerofromT0(event);
240 }
241 if(timeZeroFromTOF && (timeZero>timeZeroMax || !timeZeroFromT0)){
242 timeZero=GetTimeZerofromTOF(event);
243 }
244 }
245 AliDebug(2,Form("time Zero used in PID: %f",timeZero));
246 //Make TOF PID
247 fPid->MakePID(event,timeZero);
248
249 fSeeds->Clear();
250 fTracks->Clear();
251 return 0;
252
253}
254//_________________________________________________________________________
255void AliTOFtrackerV1::CollectESD() {
256 //prepare the set of ESD tracks to be matched to clusters in TOF
257
258 Int_t seedsTOF1=0;
259 Int_t seedsTOF2=0;
260
261 TClonesArray &aTOFTrack = *fTracks;
262 for (Int_t i=0; i<fNseeds; i++) {
263
264 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i);
265 if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
266
267 AliTOFtrack *track = new AliTOFtrack(*t); // New
268 Float_t x = (Float_t)track->GetX(); //New
269
270 // TRD 'good' tracks, already propagated at 371 cm
271 if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) &&
272 ( x >= AliTOFGeometry::Rmin() ) ) {
273 if ( track->PropagateToInnerTOF() ) {
274
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()));
278
279 track->SetSeedIndex(i);
280 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
281 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
282 fNseedsTOF++;
283 seedsTOF1++;
284 }
285 delete track;
286 }
287
288 // Propagate the rest of TPCbp
289 else {
290 if ( track->PropagateToInnerTOF() ) {
291
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()));
295
296 track->SetSeedIndex(i);
297 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
298 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
299 fNseedsTOF++;
300 seedsTOF2++;
301 }
302 delete track;
303 }
304 }
305
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));
309
310 // Sort according uncertainties on track position
311 fTracks->Sort();
312
313}
314//_________________________________________________________________________
315void AliTOFtrackerV1::MatchTracks( ){
316 //
317 //Match ESD tracks to clusters in TOF
318 //
319
320
321 // Parameters regulating the reconstruction
322 Float_t dY=AliTOFGeometry::XPad();
323 Float_t dZ=AliTOFGeometry::ZPad();
324
325 const Float_t kTimeOffset = 32.; // time offset for tracking algorithm [ps]
326
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));
341
342
343 //The matching loop
344 for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
345
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);
351
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);
355
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));
358 //delete trackTOFin;
359 //continue;
360 }
361
362 Double_t z = par[1];
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;
365
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();
369
370 //upper limit on window's size.
371 if(dz> dzMax) dz=dzMax;
372 if(dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
373
374 // find the clusters inside the selected window
375 Int_t nc=0;
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) */
381 if (nc>=kncmax) {
382 AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size.");
383 break; /* R+ fix (buffer overflow protection) */
384 }
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
390 }
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;
396 clusters[nc]=c;
397 index[nc] = k;
398 nc++;
399 }
400
401 AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",iseed,nc));
402
403 //start propagation: go to the average TOF pad middle plane at ~379.5 cm
404
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);
409 if (skip) break;
410 if (ysect > ymax) {
411 if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) {
412 break;
413 }
414 } else if (ysect <-ymax) {
415 if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) {
416 break;
417 }
418 }
419 if(!trackTOFin->PropagateTo(xTOF)) {
420 break;
421 }
422
423
424 AliTOFcluster *bestCluster=0;
425 Double_t bestChi2=maxChi2;
426 Int_t idclus=-1;
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;
432 bestChi2=chi2;
433 bestCluster=c;
434 idclus=index[i];
435 }
436
437 if (!bestCluster) { // no matching , go to the next track
438 fnunmatch++;
439 delete trackTOFin;
440 continue;
441 }
442
443 fnmatch++;
444
445 AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i",
446 iseed,
447 fnmatch-1,
448 TMath::Abs(trackTOFin->GetLabel()),
449 bestCluster->GetLabel(0),
450 bestCluster->GetLabel(1),
451 bestCluster->GetLabel(2),
452 idclus)); // AdC
453
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 %5d",trackTOFin->GetLabel()));
464
465 }
466 else{
467 fnbadmatch++;
468 AliDebug(2,Form(" track label bad %5d",trackTOFin->GetLabel()));
469 }
470
471 //Propagate the track to the best matched cluster
472 trackTOFin->PropagateTo(bestCluster);
473
474 // Fill the track residual histograms.
475 FillResiduals(trackTOFin,bestCluster,kFALSE);
476
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()));
483
484 //update the ESD track and delete the TOFtrack
485 t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
486
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);
493
494 Float_t deltaY = trackTOFin->GetY()-bestCluster->GetY();
495 t->SetTOFsignalDx(deltaY);
496
497 Float_t distR = (trackTOFin->GetX()-bestCluster->GetX())*
498 (trackTOFin->GetX()-bestCluster->GetX());
499 distR+=deltaY*deltaY;
500 distR+=dzTW*dzTW;
501 distR = TMath::Sqrt(distR);
502 Float_t info[10] = {distR, deltaY, dzTW,
503 0.,0.,0.,0.,0.,0.,0.};
504 t->SetTOFInfo(info);
505
506 Int_t ind[5];
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);
514
515 // keep track of the track labels in the matched cluster
516 Int_t tlab[3];
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);
530
531 AliDebug(2,Form(" Setting TOF raw time: %f z distance: %f corrected time: %f",rawTime,dzTW,tofcorr));
532
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);
543
544 // Fill Tree for on-the-fly offline Calibration
545 // no longer there - all info is in the ESDs now
546
547 delete trackTOFin;
548 }
549
550}
551//_________________________________________________________________________
552Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
553 //--------------------------------------------------------------------
554 //This function loads the TOF clusters
555 //--------------------------------------------------------------------
556
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();
562
563 TBranch *branch=cTree->GetBranch("TOF");
564 if (!branch) {
565 AliError("can't get the branch with the TOF clusters !");
566 return 1;
567 }
568
569 static TClonesArray dummy("AliTOFcluster",10000);
570 dummy.Clear();
571 TClonesArray *clusters=&dummy;
572 branch->SetAddress(&clusters);
573
574 cTree->GetEvent(0);
575 Int_t nc=clusters->GetEntriesFast();
576 fHDigNClus->Fill(nc);
577
578 AliInfo(Form("Number of clusters: %d",nc));
579
580 for (Int_t i=0; i<nc; i++) {
581 AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
582//PH fClusters[i]=new AliTOFcluster(*c); fN++;
583 fClusters[i]=c; fN++;
584
585 // Fill Digits QA histos
586
587 Int_t isector = c->GetDetInd(0);
588 Int_t iplate = c->GetDetInd(1);
589 Int_t istrip = c->GetDetInd(2);
590 Int_t ipadX = c->GetDetInd(4);
591 Int_t ipadZ = c->GetDetInd(3);
592
593 Float_t time =(AliTOFGeometry::TdcBinWidth()*c->GetTDC())*1E-3; // in ns
594 Float_t tot = (AliTOFGeometry::TdcBinWidth()*c->GetToT())*1E-3;//in ns
595
596 Int_t stripOffset = 0;
597 switch (iplate) {
598 case 0:
599 stripOffset = 0;
600 break;
601 case 1:
602 stripOffset = nStripC;
603 break;
604 case 2:
605 stripOffset = nStripC+nStripB;
606 break;
607 case 3:
608 stripOffset = nStripC+nStripB+nStripA;
609 break;
610 case 4:
611 stripOffset = nStripC+nStripB+nStripA+nStripB;
612 break;
613 default:
614 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
615 break;
616 };
617 Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
618 Int_t phiindex=npadX*isector+ipadX+1;
619 fHDigClusMap->Fill(zindex,phiindex);
620 fHDigClusTime->Fill(time);
621 fHDigClusToT->Fill(tot);
622 }
623
624
625 return 0;
626}
627//_________________________________________________________________________
628void AliTOFtrackerV1::UnloadClusters() {
629 //--------------------------------------------------------------------
630 //This function unloads TOF clusters
631 //--------------------------------------------------------------------
632 for (Int_t i=0; i<fN; i++) {
633//PH delete fClusters[i];
634 fClusters[i] = 0x0;
635 }
636 fN=0;
637}
638
639//_________________________________________________________________________
640Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
641 //--------------------------------------------------------------------
642 // This function returns the index of the nearest cluster
643 //--------------------------------------------------------------------
644 //MOD
645 //Here we need to get the Z in the tracking system
646
647 if (fN==0) return 0;
648 if (z <= fClusters[0]->GetZ()) return 0;
649 if (z > fClusters[fN-1]->GetZ()) return fN;
650 Int_t b=0, e=fN-1, m=(b+e)/2;
651 for (; b<e; m=(b+e)/2) {
652 if (z > fClusters[m]->GetZ()) b=m+1;
653 else e=m;
654 }
655 return m;
656}
657
658//_________________________________________________________________________
659Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
660{
661 // Get track space point with index i
662 // Coordinates are in the global system
663 AliTOFcluster *cl = fClusters[index];
664 Float_t xyz[3];
665 cl->GetGlobalXYZ(xyz);
666 Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
667 Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
668 Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
669 Float_t tiltangle = AliTOFGeometry::GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
670 Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
671 Float_t sigmay2 = AliTOFGeometry::XPad()*AliTOFGeometry::XPad()/12.;
672 Float_t sigmaz2 = AliTOFGeometry::ZPad()*AliTOFGeometry::ZPad()/12.;
673 Float_t cov[6];
674 cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
675 cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
676 cov[2] = -cosphi*sinth*costh*sigmaz2;
677 cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
678 cov[4] = -sinphi*sinth*costh*sigmaz2;
679 cov[5] = costh*costh*sigmaz2;
680 p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
681
682 // Detector numbering scheme
683 Int_t nSector = AliTOFGeometry::NSectors();
684 Int_t nPlate = AliTOFGeometry::NPlates();
685 Int_t nStripA = AliTOFGeometry::NStripA();
686 Int_t nStripB = AliTOFGeometry::NStripB();
687 Int_t nStripC = AliTOFGeometry::NStripC();
688
689 Int_t isector = cl->GetDetInd(0);
690 if (isector >= nSector)
691 AliError(Form("Wrong sector number in TOF (%d) !",isector));
692 Int_t iplate = cl->GetDetInd(1);
693 if (iplate >= nPlate)
694 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
695 Int_t istrip = cl->GetDetInd(2);
696
697 Int_t stripOffset = 0;
698 switch (iplate) {
699 case 0:
700 stripOffset = 0;
701 break;
702 case 1:
703 stripOffset = nStripC;
704 break;
705 case 2:
706 stripOffset = nStripC+nStripB;
707 break;
708 case 3:
709 stripOffset = nStripC+nStripB+nStripA;
710 break;
711 case 4:
712 stripOffset = nStripC+nStripB+nStripA+nStripB;
713 break;
714 default:
715 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
716 break;
717 };
718
719 Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
720 stripOffset +
721 istrip;
722 UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
723 p.SetVolumeID((UShort_t)volid);
724 return kTRUE;
725}
726//_________________________________________________________________________
727void AliTOFtrackerV1::InitCheckHists() {
728
729 //Init histos for Digits/Reco QA and Calibration
730
731 TDirectory *dir = gDirectory;
732 TFile *logFileTOF = 0;
733
734 TSeqCollection *list = gROOT->GetListOfFiles();
735 int n = list->GetEntries();
736 Bool_t isThere=kFALSE;
737 for(int i=0; i<n; i++) {
738 logFileTOF = (TFile*)list->At(i);
739 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
740 isThere=kTRUE;
741 break;
742 }
743 }
744
745 if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
746 logFileTOF->cd();
747
748 //Digits "QA"
749 fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
750 fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
751 fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
752 fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
753
754 //Reco "QA"
755 fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
756 fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
757 fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
758 fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
759 fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
760 fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
761 fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
762
763 dir->cd();
764
765}
766
767//_________________________________________________________________________
768void AliTOFtrackerV1::SaveCheckHists() {
769
770 //write histos for Digits/Reco QA and Calibration
771
772 TDirectory *dir = gDirectory;
773 TFile *logFile = 0;
774 TFile *logFileTOF = 0;
775
776 TSeqCollection *list = gROOT->GetListOfFiles();
777 int n = list->GetEntries();
778 for(int i=0; i<n; i++) {
779 logFile = (TFile*)list->At(i);
780 if (strstr(logFile->GetName(), "AliESDs.root")) break;
781 }
782
783 Bool_t isThere=kFALSE;
784 for(int i=0; i<n; i++) {
785 logFileTOF = (TFile*)list->At(i);
786 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
787 isThere=kTRUE;
788 break;
789 }
790 }
791
792 if(!isThere) {
793 AliError(Form("File TOFQA.root not found!! not wring histograms...."));
794 return;
795 }
796 logFile->cd();
797 fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
798 fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
799 fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
800 fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
801 fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
802 fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
803 fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
804 fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
805 fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
806 fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
807 fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
808 logFile->Flush();
809
810 dir->cd();
811
812 }
813//_________________________________________________________________________
814Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) {
815
816 //dummy, for the moment
817 Float_t tofcorr=0.;
818 if(dist<AliTOFGeometry::ZPad()*0.5){
819 tofcorr=tof;
820 //place here the actual correction
821 }else{
822 tofcorr=tof;
823 }
824 return tofcorr;
825}
826//_________________________________________________________________________
827Float_t AliTOFtrackerV1::GetTimeZerofromT0(AliESDEvent *event) const {
828
829 //Returns TimeZero as measured by T0 detector
830
831 return event->GetT0();
832}
833//_________________________________________________________________________
834Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
835
836 //dummy, for the moment. T0 algorithm using tracks on TOF
837 {
838 //place T0 algo here...
839 }
840 return 0.;
841}
842//_________________________________________________________________________
843
844void AliTOFtrackerV1::FillClusterArray(TObjArray* arr) const
845{
846 //
847 // Returns the TOF cluster array
848 //
849
850 if (fN==0)
851 arr = 0x0;
852 else
853 for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]);
854
855}