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swap of the input parameters in Propagate()
[u/mrichter/AliRoot.git] / TOF / AliTOFtrackerV1.cxx
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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// //
3a646035 18// AliTOFtrackerV1 Class //
d686d062 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
d686d062 46#include "AliTOFRecoParam.h"
3a646035 47#include "AliTOFReconstructor.h"
d686d062 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
3a646035 84
d686d062 85 InitCheckHists();
86
d686d062 87}
88//_____________________________________________________________________________
89AliTOFtrackerV1::~AliTOFtrackerV1() {
90 //
91 // Dtor
92 //
93
94 SaveCheckHists();
95
5d456bcd 96 if(!(AliCDBManager::Instance()->GetCacheFlag())){
97 delete fRecoParam;
98 }
d686d062 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;
b42a5ea1 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 }
d686d062 121}
122//_____________________________________________________________________________
123Int_t AliTOFtrackerV1::PropagateBack(AliESDEvent* event) {
124 //
125 // Gets seeds from ESD event and Match with TOF Clusters
126 //
127
3a646035 128 // initialize RecoParam for current event
129
130 AliInfo("Initializing params for TOF... ");
131
132 fRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER...
90b234fe 133
3a646035 134 if (fRecoParam == 0x0) {
135 AliFatal("No Reco Param found for TOF!!!");
136 }
137 //fRecoParam->Dump();
a825d829 138 //if(fRecoParam->GetApplyPbPbCuts())fRecoParam=fRecoParam->GetPbPbparam();
90b234fe 139 //fRecoParam->PrintParameters();
140
3a646035 141 Double_t parPID[2];
142 parPID[0]=fRecoParam->GetTimeResolution();
143 parPID[1]=fRecoParam->GetTimeNSigma();
144 fPid=new AliTOFpidESD(parPID);
d686d062 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;
d686d062 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);
6819758a 182
af61c656 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->SetTOFCalChannel(seed->GetTOFCalChannel());
194 Int_t tlab[3]; seed->GetTOFLabel(tlab);
195 t->SetTOFLabel(tlab);
24322e5c 196
197 Float_t info[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
198 seed->GetTOFInfo(info);
199 t->SetTOFInfo(info);
200 AliDebug(2,Form(" distance=%f; residual in the pad reference frame: dX=%f, dZ=%f", info[0],info[1],info[2]));
201
af61c656 202 AliTOFtrack *track = new AliTOFtrack(*seed);
203 t->UpdateTrackParams(track,AliESDtrack::kTOFout); // to be checked - AdC
204 delete track;
205
206 Double_t time[10]; t->GetIntegratedTimes(time);
53884c34 207 AliDebug(2,Form(" %6d %f %f %f %f %6d %3d %f %f %f %f %f %f",
af61c656 208 i,
209 t->GetTOFsignalRaw(),
210 t->GetTOFsignal(),
211 t->GetTOFsignalToT(),
212 t->GetTOFsignalDz(),
213 t->GetTOFCalChannel(),
214 t->GetTOFcluster(),
215 t->GetIntegratedLength(),
216 time[0], time[1], time[2], time[3], time[4]
217 )
218 );
219 }
d686d062 220 }
221 }
222
223 //Handle Time Zero information
224
225 Double_t timeZero=0.;
226 Double_t timeZeroMax=99999.;
227 Bool_t usetimeZero = fRecoParam->UseTimeZero();
228 Bool_t timeZeroFromT0 = fRecoParam->GetTimeZerofromT0();
229 Bool_t timeZeroFromTOF = fRecoParam->GetTimeZerofromTOF();
230
53884c34 231 AliDebug(2,Form("Use Time Zero?: %d",usetimeZero));
232 AliDebug(2,Form("Time Zero from T0? : %d",timeZeroFromT0));
233 AliDebug(2,Form("Time Zero From TOF? : %d",timeZeroFromTOF));
d686d062 234
235 if(usetimeZero){
236 if(timeZeroFromT0){
237 timeZero=GetTimeZerofromT0(event);
238 }
239 if(timeZeroFromTOF && (timeZero>timeZeroMax || !timeZeroFromT0)){
240 timeZero=GetTimeZerofromTOF(event);
241 }
242 }
243 AliDebug(2,Form("time Zero used in PID: %f",timeZero));
244 //Make TOF PID
245 fPid->MakePID(event,timeZero);
246
b42a5ea1 247 fSeeds->Clear();
248 fTracks->Clear();
d686d062 249 return 0;
250
251}
252//_________________________________________________________________________
253void AliTOFtrackerV1::CollectESD() {
254 //prepare the set of ESD tracks to be matched to clusters in TOF
255
256 Int_t seedsTOF1=0;
257 Int_t seedsTOF2=0;
258
d686d062 259 TClonesArray &aTOFTrack = *fTracks;
260 for (Int_t i=0; i<fNseeds; i++) {
261
262 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i);
263 if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
264
d686d062 265 AliTOFtrack *track = new AliTOFtrack(*t); // New
af61c656 266 Float_t x = (Float_t)track->GetX(); //New
267
268 // TRD 'good' tracks, already propagated at 371 cm
269 if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) &&
270 ( x >= AliTOFGeometry::Rmin() ) ) {
271 if ( track->PropagateToInnerTOF() ) {
272
273 AliDebug(1,Form(" TRD propagated track till rho = %fcm."
274 " And then the track has been propagated till rho = %fcm.",
275 x, (Float_t)track->GetX()));
276
277 track->SetSeedIndex(i);
278 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
279 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
280 fNseedsTOF++;
281 seedsTOF1++;
282 }
d686d062 283 delete track;
284 }
285
af61c656 286 // Propagate the rest of TPCbp
d686d062 287 else {
af61c656 288 if ( track->PropagateToInnerTOF() ) {
289
290 AliDebug(1,Form(" TRD propagated track till rho = %fcm."
291 " And then the track has been propagated till rho = %fcm.",
292 x, (Float_t)track->GetX()));
293
d686d062 294 track->SetSeedIndex(i);
af61c656 295 t->UpdateTrackParams(track,AliESDtrack::kTOFin);
d686d062 296 new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
297 fNseedsTOF++;
298 seedsTOF2++;
299 }
300 delete track;
301 }
302 }
303
6819758a 304 AliInfo(Form("Number of TOF seeds %d",fNseedsTOF));
305 AliInfo(Form("Number of TOF seeds Type 1 %d",seedsTOF1));
306 AliInfo(Form("Number of TOF seeds Type 2 %d",seedsTOF2));
d686d062 307
308 // Sort according uncertainties on track position
309 fTracks->Sort();
310
311}
312//_________________________________________________________________________
313void AliTOFtrackerV1::MatchTracks( ){
314 //
315 //Match ESD tracks to clusters in TOF
316 //
317
318
319 // Parameters regulating the reconstruction
ca270b6d 320 Float_t dY=AliTOFGeometry::XPad();
321 Float_t dZ=AliTOFGeometry::ZPad();
d686d062 322
6819758a 323 const Float_t kTimeOffset = 32.; // time offset for tracking algorithm [ps]
324
3da9d64f 325 const Int_t kncmax = 100;
d686d062 326 Float_t sensRadius = fRecoParam->GetSensRadius();
327 Float_t scaleFact = fRecoParam->GetWindowScaleFact();
328 Float_t dyMax=fRecoParam->GetWindowSizeMaxY();
329 Float_t dzMax=fRecoParam->GetWindowSizeMaxZ();
330 Double_t maxChi2=fRecoParam->GetMaxChi2();
331 Bool_t timeWalkCorr = fRecoParam->GetTimeWalkCorr();
332 AliDebug(1,"++++++++++++++TOF Reconstruction Parameters:++++++++++++ \n");
333 AliDebug(1,Form("TOF sens radius: %f",sensRadius));
334 AliDebug(1,Form("TOF Window scale factor: %f",scaleFact));
335 AliDebug(1,Form("TOF Window max dy: %f",dyMax));
336 AliDebug(1,Form("TOF Window max dz: %f",dzMax));
337 AliDebug(1,Form("TOF Max Chi2: %f",maxChi2));
338 AliDebug(1,Form("Time Walk Correction? : %d",timeWalkCorr));
339
340
341 //The matching loop
d686d062 342 for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
343
344 AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(iseed);
345 AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex());
af61c656 346 //if ( t->GetTOFsignal()>0. ) continue;
347 if ( (t->GetStatus()&AliESDtrack::kTOFout)!=0 ) continue;
d686d062 348 AliTOFtrack *trackTOFin =new AliTOFtrack(*track);
349
350 // Determine a window around the track
351 Double_t x,par[5]; trackTOFin->GetExternalParameters(x,par);
352 Double_t cov[15]; trackTOFin->GetExternalCovariance(cov);
353
53884c34 354 if (cov[0]<0. || cov[2]<0.) {
355 AliWarning(Form("Very strange track (%d)! At least one of its covariance matrix diagonal elements is negative!",iseed));
ecd795d8 356 //delete trackTOFin;
357 //continue;
53884c34 358 }
359
d686d062 360 Double_t z = par[1];
ecd795d8 361 Double_t dz = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[2])+dZ*dZ/12.);
362 Double_t dphi = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[0])+dY*dY/12.)/sensRadius;
d686d062 363
364 Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha();
365 if (phi<-TMath::Pi())phi+=2*TMath::Pi();
366 if (phi>=TMath::Pi())phi-=2*TMath::Pi();
367
368 //upper limit on window's size.
369 if(dz> dzMax) dz=dzMax;
370 if(dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
371
d686d062 372 // find the clusters inside the selected window
373 Int_t nc=0;
3da9d64f 374 AliTOFcluster *clusters[kncmax]; // pointers to the clusters in the window
375 Int_t index[kncmax];//to keep track of the cluster index
d686d062 376 for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) {
377 AliTOFcluster *c=fClusters[k];
c0b60ae7 378 // if(nc>kncmax)break; /* R+ fix (buffer overflow) */
53884c34 379 if (nc>=kncmax) {
380 AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size.");
381 break; /* R+ fix (buffer overflow protection) */
382 }
d686d062 383 if(c->GetZ() > z+dz) break;
384 if(c->IsUsed()) continue;
17149e6b 385 if(!c->GetStatus()) {
53884c34 386 AliDebug(1,"Cluster in channel declared bad!");
387 continue; // skip bad channels as declared in OCDB
17149e6b 388 }
d686d062 389 Float_t xyz[3]; c->GetGlobalXYZ(xyz);
390 Double_t clPhi=TMath::ATan2(xyz[1],xyz[0]);
391 Double_t dph=TMath::Abs(clPhi-phi);
392 if (dph>TMath::Pi()) dph-=2.*TMath::Pi();
393 if (TMath::Abs(dph)>dphi) continue;
394 clusters[nc]=c;
395 index[nc] = k;
396 nc++;
397 }
398
53884c34 399 AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",iseed,nc));
400
8dacd1bb 401 //start propagation: go to the average TOF pad middle plane at ~379.5 cm
d686d062 402
403 Float_t xTOF = sensRadius;
ca270b6d 404 Double_t ymax = xTOF*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
d686d062 405 Bool_t skip = kFALSE;
406 Double_t ysect = trackTOFin->GetYat(xTOF,skip);
407 if (skip) break;
408 if (ysect > ymax) {
ca270b6d 409 if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) {
d686d062 410 break;
411 }
412 } else if (ysect <-ymax) {
13c769b4 413 if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) {
d686d062 414 break;
415 }
416 }
417 if(!trackTOFin->PropagateTo(xTOF)) {
418 break;
419 }
420
421
422 AliTOFcluster *bestCluster=0;
423 Double_t bestChi2=maxChi2;
424 Int_t idclus=-1;
c0b60ae7 425 // for (Int_t i=0; i<nc; i++){ /* R+ fix (unsafe) */
426 for (Int_t i=0; i<nc && i<kncmax; i++){ /* R+ fix (buffer overflow protection) */
d686d062 427 AliTOFcluster *c=clusters[i]; // one of the preselected clusters
428 Double_t chi2=trackTOFin->GetPredictedChi2((AliCluster3D*)c);
429 if (chi2 >= bestChi2) continue;
430 bestChi2=chi2;
431 bestCluster=c;
432 idclus=index[i];
433 }
434
435 if (!bestCluster) { // no matching , go to the next track
436 fnunmatch++;
437 delete trackTOFin;
438 continue;
439 }
440
441 fnmatch++;
32ead898 442
3a646035 443 AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i",
32ead898 444 iseed,
3a646035 445 fnmatch-1,
32ead898 446 TMath::Abs(trackTOFin->GetLabel()),
447 bestCluster->GetLabel(0),
448 bestCluster->GetLabel(1),
3a646035 449 bestCluster->GetLabel(2),
450 idclus)); // AdC
32ead898 451
d686d062 452 bestCluster->Use();
453 if (
454 (bestCluster->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel()))
455 ||
456 (bestCluster->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel()))
457 ||
458 (bestCluster->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel()))
459 ) {
460 fngoodmatch++;
6819758a 461 AliDebug(2,Form(" track label good %5d",trackTOFin->GetLabel()));
d686d062 462
463 }
464 else{
465 fnbadmatch++;
6819758a 466 AliDebug(2,Form(" track label bad %5d",trackTOFin->GetLabel()));
d686d062 467 }
468
469 //Propagate the track to the best matched cluster
470 trackTOFin->PropagateTo(bestCluster);
471
77a9ea9a 472 // Fill the track residual histograms.
473 FillResiduals(trackTOFin,bestCluster,kFALSE);
d686d062 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();
6819758a 477 Double_t dzTW=trackTOFin->GetZ()-bestCluster->GetZ(); // in cm - in the ALICE RF -
478 dzTW/=TMath::Cos(tiltangle); // from ALICE/tracking RF to pad RF (1)
479 dzTW=-dzTW; // from ALICE/tracking RF to pad RF (2)
480 if (tiltangle!=0.) AliDebug(2,Form(" rho_track = %f --- rho_cluster = %f ",trackTOFin->GetX(),bestCluster->GetX()));
d686d062 481
482 //update the ESD track and delete the TOFtrack
af61c656 483 t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
d686d062 484
485 // Store quantities to be used in the TOF Calibration
ca270b6d 486 Float_t tToT=AliTOFGeometry::ToTBinWidth()*bestCluster->GetToT()*1E-3; // in ns
d686d062 487 t->SetTOFsignalToT(tToT);
6819758a 488 Float_t rawTime=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDCRAW()+kTimeOffset; // RAW time,in ps
d686d062 489 t->SetTOFsignalRaw(rawTime);
490 t->SetTOFsignalDz(dzTW);
6819758a 491
24322e5c 492
493 Float_t deltaY = trackTOFin->GetY()-bestCluster->GetY();
494
495 Float_t distR = (trackTOFin->GetX()-bestCluster->GetX())*
496 (trackTOFin->GetX()-bestCluster->GetX());
497 distR+=deltaY*deltaY;
498 distR+=dzTW*dzTW;
499 distR = TMath::Sqrt(distR);
500 Float_t info[10] = {distR, deltaY, dzTW,
501 0.,0.,0.,0.,0.,0.,0.};
502 t->SetTOFInfo(info);
503
d686d062 504 Int_t ind[5];
505 ind[0]=bestCluster->GetDetInd(0);
506 ind[1]=bestCluster->GetDetInd(1);
507 ind[2]=bestCluster->GetDetInd(2);
508 ind[3]=bestCluster->GetDetInd(3);
509 ind[4]=bestCluster->GetDetInd(4);
ca270b6d 510 Int_t calindex = AliTOFGeometry::GetIndex(ind);
d686d062 511 t->SetTOFCalChannel(calindex);
512
513 // keep track of the track labels in the matched cluster
514 Int_t tlab[3];
515 tlab[0]=bestCluster->GetLabel(0);
516 tlab[1]=bestCluster->GetLabel(1);
517 tlab[2]=bestCluster->GetLabel(2);
6819758a 518 AliDebug(2,Form(" tdc time of the matched track %6d = ",bestCluster->GetTDC()));
519 Double_t tof=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDC()+kTimeOffset; // in ps
520 AliDebug(2,Form(" tof time of the matched track: %f = ",tof));
d686d062 521 Double_t tofcorr=tof;
522 if(timeWalkCorr)tofcorr=CorrectTimeWalk(dzTW,tof);
523 AliDebug(2,Form(" tof time of the matched track, after TW corr: %f = ",tofcorr));
524 //Set TOF time signal and pointer to the matched cluster
525 t->SetTOFsignal(tofcorr);
526 t->SetTOFcluster(idclus); // pointing to the recPoints tree
527 t->SetTOFLabel(tlab);
528
6819758a 529 AliDebug(2,Form(" Setting TOF raw time: %f z distance: %f corrected time: %f",rawTime,dzTW,tofcorr));
530
d686d062 531 Double_t mom=t->GetP();
53884c34 532 AliDebug(2,Form(" Momentum for track %d -> %f", iseed,mom));
d686d062 533 // Fill Reco-QA histos for Reconstruction
534 fHRecNClus->Fill(nc);
535 fHRecChi2->Fill(bestChi2);
536 fHRecDistZ->Fill(dzTW);
537 fHRecSigYVsP->Fill(mom,TMath::Sqrt(cov[0]));
538 fHRecSigZVsP->Fill(mom,TMath::Sqrt(cov[2]));
539 fHRecSigYVsPWin->Fill(mom,dphi*sensRadius);
540 fHRecSigZVsPWin->Fill(mom,dz);
541
542 // Fill Tree for on-the-fly offline Calibration
543 // no longer there - all info is in the ESDs now
544
af61c656 545 delete trackTOFin;
d686d062 546 }
d686d062 547
548}
549//_________________________________________________________________________
550Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
551 //--------------------------------------------------------------------
552 //This function loads the TOF clusters
553 //--------------------------------------------------------------------
554
ca270b6d 555 Int_t npadX = AliTOFGeometry::NpadX();
556 Int_t npadZ = AliTOFGeometry::NpadZ();
557 Int_t nStripA = AliTOFGeometry::NStripA();
558 Int_t nStripB = AliTOFGeometry::NStripB();
559 Int_t nStripC = AliTOFGeometry::NStripC();
d686d062 560
561 TBranch *branch=cTree->GetBranch("TOF");
562 if (!branch) {
563 AliError("can't get the branch with the TOF clusters !");
564 return 1;
565 }
566
b42a5ea1 567 static TClonesArray dummy("AliTOFcluster",10000);
568 dummy.Clear();
569 TClonesArray *clusters=&dummy;
d686d062 570 branch->SetAddress(&clusters);
571
572 cTree->GetEvent(0);
573 Int_t nc=clusters->GetEntriesFast();
574 fHDigNClus->Fill(nc);
575
b42a5ea1 576 AliInfo(Form("Number of clusters: %d",nc));
577
d686d062 578 for (Int_t i=0; i<nc; i++) {
579 AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
580 fClusters[i]=new AliTOFcluster(*c); fN++;
581
582 // Fill Digits QA histos
583
584 Int_t isector = c->GetDetInd(0);
585 Int_t iplate = c->GetDetInd(1);
586 Int_t istrip = c->GetDetInd(2);
587 Int_t ipadX = c->GetDetInd(4);
588 Int_t ipadZ = c->GetDetInd(3);
589
ca270b6d 590 Float_t time =(AliTOFGeometry::TdcBinWidth()*c->GetTDC())*1E-3; // in ns
591 Float_t tot = (AliTOFGeometry::TdcBinWidth()*c->GetToT())*1E-3;//in ns
d686d062 592
593 Int_t stripOffset = 0;
594 switch (iplate) {
595 case 0:
596 stripOffset = 0;
597 break;
598 case 1:
599 stripOffset = nStripC;
600 break;
601 case 2:
602 stripOffset = nStripC+nStripB;
603 break;
604 case 3:
605 stripOffset = nStripC+nStripB+nStripA;
606 break;
607 case 4:
608 stripOffset = nStripC+nStripB+nStripA+nStripB;
609 break;
610 default:
611 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
612 break;
613 };
614 Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
615 Int_t phiindex=npadX*isector+ipadX+1;
616 fHDigClusMap->Fill(zindex,phiindex);
617 fHDigClusTime->Fill(time);
618 fHDigClusToT->Fill(tot);
619 }
620
621
622 return 0;
623}
624//_________________________________________________________________________
625void AliTOFtrackerV1::UnloadClusters() {
626 //--------------------------------------------------------------------
627 //This function unloads TOF clusters
628 //--------------------------------------------------------------------
629 for (Int_t i=0; i<fN; i++) {
630 delete fClusters[i];
631 fClusters[i] = 0x0;
632 }
633 fN=0;
634}
635
636//_________________________________________________________________________
637Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
638 //--------------------------------------------------------------------
639 // This function returns the index of the nearest cluster
640 //--------------------------------------------------------------------
641 //MOD
642 //Here we need to get the Z in the tracking system
643
644 if (fN==0) return 0;
645 if (z <= fClusters[0]->GetZ()) return 0;
646 if (z > fClusters[fN-1]->GetZ()) return fN;
647 Int_t b=0, e=fN-1, m=(b+e)/2;
648 for (; b<e; m=(b+e)/2) {
649 if (z > fClusters[m]->GetZ()) b=m+1;
650 else e=m;
651 }
652 return m;
653}
654
655//_________________________________________________________________________
656Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
657{
658 // Get track space point with index i
659 // Coordinates are in the global system
660 AliTOFcluster *cl = fClusters[index];
661 Float_t xyz[3];
662 cl->GetGlobalXYZ(xyz);
663 Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
664 Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
665 Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
ca270b6d 666 Float_t tiltangle = AliTOFGeometry::GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
d686d062 667 Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
ca270b6d 668 Float_t sigmay2 = AliTOFGeometry::XPad()*AliTOFGeometry::XPad()/12.;
669 Float_t sigmaz2 = AliTOFGeometry::ZPad()*AliTOFGeometry::ZPad()/12.;
d686d062 670 Float_t cov[6];
671 cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
672 cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
673 cov[2] = -cosphi*sinth*costh*sigmaz2;
674 cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
675 cov[4] = -sinphi*sinth*costh*sigmaz2;
676 cov[5] = costh*costh*sigmaz2;
677 p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
678
679 // Detector numbering scheme
ca270b6d 680 Int_t nSector = AliTOFGeometry::NSectors();
681 Int_t nPlate = AliTOFGeometry::NPlates();
682 Int_t nStripA = AliTOFGeometry::NStripA();
683 Int_t nStripB = AliTOFGeometry::NStripB();
684 Int_t nStripC = AliTOFGeometry::NStripC();
d686d062 685
686 Int_t isector = cl->GetDetInd(0);
687 if (isector >= nSector)
688 AliError(Form("Wrong sector number in TOF (%d) !",isector));
689 Int_t iplate = cl->GetDetInd(1);
690 if (iplate >= nPlate)
691 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
692 Int_t istrip = cl->GetDetInd(2);
693
694 Int_t stripOffset = 0;
695 switch (iplate) {
696 case 0:
697 stripOffset = 0;
698 break;
699 case 1:
700 stripOffset = nStripC;
701 break;
702 case 2:
703 stripOffset = nStripC+nStripB;
704 break;
705 case 3:
706 stripOffset = nStripC+nStripB+nStripA;
707 break;
708 case 4:
709 stripOffset = nStripC+nStripB+nStripA+nStripB;
710 break;
711 default:
712 AliError(Form("Wrong plate number in TOF (%d) !",iplate));
713 break;
714 };
715
716 Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
717 stripOffset +
718 istrip;
719 UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
720 p.SetVolumeID((UShort_t)volid);
721 return kTRUE;
722}
723//_________________________________________________________________________
724void AliTOFtrackerV1::InitCheckHists() {
725
726 //Init histos for Digits/Reco QA and Calibration
727
3a646035 728 TDirectory *dir = gDirectory;
729 TFile *logFileTOF = 0;
730
731 TSeqCollection *list = gROOT->GetListOfFiles();
732 int n = list->GetEntries();
733 Bool_t isThere=kFALSE;
734 for(int i=0; i<n; i++) {
735 logFileTOF = (TFile*)list->At(i);
736 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
737 isThere=kTRUE;
738 break;
739 }
740 }
741
742 if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
743 logFileTOF->cd();
744
d686d062 745 //Digits "QA"
746 fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
747 fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
748 fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
749 fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
750
751 //Reco "QA"
752 fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
753 fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
754 fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
755 fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
756 fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
757 fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
758 fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
3a646035 759
760 dir->cd();
761
d686d062 762}
763
764//_________________________________________________________________________
765void AliTOFtrackerV1::SaveCheckHists() {
766
767 //write histos for Digits/Reco QA and Calibration
768
769 TDirectory *dir = gDirectory;
770 TFile *logFile = 0;
771 TFile *logFileTOF = 0;
772
773 TSeqCollection *list = gROOT->GetListOfFiles();
774 int n = list->GetEntries();
775 for(int i=0; i<n; i++) {
776 logFile = (TFile*)list->At(i);
777 if (strstr(logFile->GetName(), "AliESDs.root")) break;
778 }
779
780 Bool_t isThere=kFALSE;
781 for(int i=0; i<n; i++) {
782 logFileTOF = (TFile*)list->At(i);
783 if (strstr(logFileTOF->GetName(), "TOFQA.root")){
784 isThere=kTRUE;
785 break;
786 }
787 }
788
3a646035 789 if(!isThere) {
790 AliError(Form("File TOFQA.root not found!! not wring histograms...."));
791 return;
792 }
d686d062 793 logFile->cd();
794 fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
795 fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
796 fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
797 fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
798 fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
799 fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
800 fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
801 fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
802 fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
803 fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
804 fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
805 logFile->Flush();
806
d686d062 807 dir->cd();
3a646035 808
d686d062 809 }
810//_________________________________________________________________________
811Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) {
812
813 //dummy, for the moment
814 Float_t tofcorr=0.;
ca270b6d 815 if(dist<AliTOFGeometry::ZPad()*0.5){
d686d062 816 tofcorr=tof;
817 //place here the actual correction
818 }else{
819 tofcorr=tof;
820 }
821 return tofcorr;
822}
823//_________________________________________________________________________
824Float_t AliTOFtrackerV1::GetTimeZerofromT0(AliESDEvent *event) const {
825
826 //Returns TimeZero as measured by T0 detector
827
828 return event->GetT0();
829}
830//_________________________________________________________________________
831Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
832
833 //dummy, for the moment. T0 algorithm using tracks on TOF
834 {
835 //place T0 algo here...
836 }
837 return 0.;
838}
128563f6 839//_________________________________________________________________________
840
841void AliTOFtrackerV1::FillClusterArray(TObjArray* arr) const
842{
843 //
844 // Returns the TOF cluster array
845 //
846
847 if (fN==0)
848 arr = 0x0;
849 else
850 for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]);
851
852}