Line data Source code
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 <TObjArray.h>
34 : #include <TTree.h>
35 : #include <TFile.h>
36 : #include <TH1F.h>
37 : #include <TH2F.h>
38 : #include <TSeqCollection.h>
39 :
40 : #include "AliESDtrack.h"
41 : #include "AliESDEvent.h"
42 : #include "AliESDpid.h"
43 : #include "AliLog.h"
44 : #include "AliTrackPointArray.h"
45 : #include "AliGeomManager.h"
46 : #include "AliCDBManager.h"
47 :
48 : #include "AliTOFRecoParam.h"
49 : #include "AliTOFReconstructor.h"
50 : #include "AliTOFcluster.h"
51 : #include "AliTOFGeometry.h"
52 : #include "AliTOFtrackerV1.h"
53 : #include "AliTOFtrack.h"
54 :
55 : //extern TROOT *gROOT;
56 :
57 26 : ClassImp(AliTOFtrackerV1)
58 :
59 : //_____________________________________________________________________________
60 0 : AliTOFtrackerV1::AliTOFtrackerV1():
61 0 : fkRecoParam(0x0),
62 0 : fN(0),
63 0 : fNseeds(0),
64 0 : fNseedsTOF(0),
65 0 : fngoodmatch(0),
66 0 : fnbadmatch(0),
67 0 : fnunmatch(0),
68 0 : fnmatch(0),
69 0 : fTracks(new TClonesArray("AliTOFtrack")),
70 0 : fSeeds(new TObjArray(100)),
71 0 : fHDigClusMap(0x0),
72 0 : fHDigNClus(0x0),
73 0 : fHDigClusTime(0x0),
74 0 : fHDigClusToT(0x0),
75 0 : fHRecNClus(0x0),
76 0 : fHRecChi2(0x0),
77 0 : fHRecDistZ(0x0),
78 0 : fHRecSigYVsP(0x0),
79 0 : fHRecSigZVsP(0x0),
80 0 : fHRecSigYVsPWin(0x0),
81 0 : fHRecSigZVsPWin(0x0)
82 0 : {
83 : //AliTOFtrackerV1 main Ctor
84 :
85 0 : for (Int_t ii=0; ii<kMaxCluster; ii++) fClusters[ii]=0x0;
86 :
87 0 : InitCheckHists();
88 :
89 0 : }
90 : //_____________________________________________________________________________
91 0 : AliTOFtrackerV1::~AliTOFtrackerV1() {
92 : //
93 : // Dtor
94 : //
95 :
96 0 : SaveCheckHists();
97 :
98 0 : if(!(AliCDBManager::Instance()->GetCacheFlag())){
99 0 : delete fkRecoParam;
100 : }
101 0 : delete fHDigClusMap;
102 0 : delete fHDigNClus;
103 0 : delete fHDigClusTime;
104 0 : delete fHDigClusToT;
105 0 : delete fHRecNClus;
106 0 : delete fHRecChi2;
107 0 : delete fHRecDistZ;
108 0 : delete fHRecSigYVsP;
109 0 : delete fHRecSigZVsP;
110 0 : delete fHRecSigYVsPWin;
111 0 : delete fHRecSigZVsPWin;
112 0 : if (fTracks){
113 0 : fTracks->Delete();
114 0 : delete fTracks;
115 0 : fTracks=0x0;
116 0 : }
117 0 : if (fSeeds){
118 0 : fSeeds->Delete();
119 0 : delete fSeeds;
120 0 : fSeeds=0x0;
121 0 : }
122 :
123 :
124 0 : for (Int_t ii=0; ii<kMaxCluster; ii++)
125 0 : if (fClusters[ii]) fClusters[ii]->Delete();
126 :
127 0 : }
128 : //_____________________________________________________________________________
129 : void AliTOFtrackerV1::GetPidSettings(AliESDpid *esdPID) {
130 : //
131 : // Sets TOF resolution from RecoParams
132 : //
133 0 : if (fkRecoParam)
134 0 : esdPID->GetTOFResponse().SetTimeResolution(fkRecoParam->GetTimeResolution());
135 : else
136 0 : AliWarning("fkRecoParam not yet set; cannot set PID settings");
137 0 : }
138 : //_____________________________________________________________________________
139 : Int_t AliTOFtrackerV1::PropagateBack(AliESDEvent * const event) {
140 : //
141 : // Gets seeds from ESD event and Match with TOF Clusters
142 : //
143 :
144 0 : if (fN==0) {
145 0 : AliInfo("No TOF recPoints to be matched with reconstructed tracks");
146 0 : return 0;
147 : }
148 :
149 : // initialize RecoParam for current event
150 0 : AliDebug(1,"Initializing params for TOF");
151 :
152 0 : fkRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER...
153 :
154 0 : if (fkRecoParam == 0x0) {
155 0 : AliFatal("No Reco Param found for TOF!!!");
156 0 : }
157 : //fkRecoParam->Dump();
158 : //if(fkRecoParam->GetApplyPbPbCuts())fkRecoParam=fkRecoParam->GetPbPbparam();
159 : //fkRecoParam->PrintParameters();
160 :
161 : //Initialise some counters
162 :
163 0 : fNseeds=0;
164 0 : fNseedsTOF=0;
165 0 : fngoodmatch=0;
166 0 : fnbadmatch=0;
167 0 : fnunmatch=0;
168 0 : fnmatch=0;
169 :
170 0 : Int_t ntrk=event->GetNumberOfTracks();
171 0 : fNseeds = ntrk;
172 :
173 : //Load ESD tracks into a local Array of ESD Seeds
174 0 : for (Int_t i=0; i<fNseeds; i++){
175 0 : fSeeds->AddLast(event->GetTrack(i));
176 0 : event->GetTrack(i)->SetESDEvent(event);
177 : }
178 :
179 : //Prepare ESD tracks candidates for TOF Matching
180 0 : CollectESD();
181 :
182 0 : if (fNseeds==0 || fNseedsTOF==0) {
183 0 : AliInfo("No seeds to try TOF match");
184 0 : return 0;
185 : }
186 :
187 : //Matching Step
188 0 : MatchTracks();
189 :
190 0 : AliInfo(Form("Number of matched tracks = %d (good = %d, bad = %d)",fnmatch,fngoodmatch,fnbadmatch));
191 :
192 : //Update the matched ESD tracks
193 :
194 0 : for (Int_t i=0; i<ntrk; i++) {
195 0 : AliESDtrack *t=event->GetTrack(i);
196 0 : AliESDtrack *seed =(AliESDtrack*)fSeeds->At(i);
197 :
198 0 : if ( (seed->GetStatus()&AliESDtrack::kTOFin)!=0 ) {
199 0 : t->SetStatus(AliESDtrack::kTOFin);
200 : //if(seed->GetTOFsignal()>0){
201 0 : if ( (seed->GetStatus()&AliESDtrack::kTOFout)!=0 ) {
202 0 : t->SetStatus(AliESDtrack::kTOFout);
203 0 : t->SetTOFsignal(seed->GetTOFsignal());
204 0 : t->SetTOFcluster(seed->GetTOFcluster());
205 0 : t->SetTOFsignalToT(seed->GetTOFsignalToT());
206 0 : t->SetTOFsignalRaw(seed->GetTOFsignalRaw());
207 0 : t->SetTOFsignalDz(seed->GetTOFsignalDz());
208 0 : t->SetTOFsignalDx(seed->GetTOFsignalDx());
209 0 : t->SetTOFDeltaBC(seed->GetTOFDeltaBC());
210 0 : t->SetTOFL0L1(seed->GetTOFL0L1());
211 0 : t->SetTOFCalChannel(seed->GetTOFCalChannel());
212 0 : Int_t tlab[3]; seed->GetTOFLabel(tlab);
213 0 : t->SetTOFLabel(tlab);
214 :
215 0 : Double_t alphaA = (Double_t)t->GetAlpha();
216 0 : Double_t xA = (Double_t)t->GetX();
217 0 : Double_t yA = (Double_t)t->GetY();
218 0 : Double_t zA = (Double_t)t->GetZ();
219 0 : Double_t p1A = (Double_t)t->GetSnp();
220 0 : Double_t p2A = (Double_t)t->GetTgl();
221 0 : Double_t p3A = (Double_t)t->GetSigned1Pt();
222 0 : const Double_t *covA = (Double_t*)t->GetCovariance();
223 :
224 : // Make attention, please:
225 : // AliESDtrack::fTOFInfo array does not be stored in the AliESDs.root file
226 : // it is there only for a check during the reconstruction step.
227 0 : Float_t info[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
228 0 : seed->GetTOFInfo(info);
229 0 : t->SetTOFInfo(info);
230 0 : AliDebug(2,Form(" distance=%f; residual in the pad reference frame: dX=%f, dZ=%f", info[0],info[1],info[2]));
231 :
232 : // Check done:
233 : // by calling the AliESDtrack::UpdateTrackParams,
234 : // the current track parameters are changed
235 : // and it could cause refit problems.
236 : // We need to update only the following track parameters:
237 : // the track length and expected times.
238 : // Removed AliESDtrack::UpdateTrackParams call
239 : // Called AliESDtrack::SetIntegratedTimes(...) and
240 : // AliESDtrack::SetIntegratedLength() routines.
241 : /*
242 : AliTOFtrack *track = new AliTOFtrack(*seed);
243 : t->UpdateTrackParams(track,AliESDtrack::kTOFout); // to be checked - AdC
244 : delete track;
245 : Double_t time[AliPID::kSPECIESC]; t->GetIntegratedTimes(time);
246 : */
247 :
248 0 : Double_t time[AliPID::kSPECIESC]; seed->GetIntegratedTimes(time,AliPID::kSPECIESC);
249 0 : t->SetIntegratedTimes(time);
250 :
251 0 : Double_t length = seed->GetIntegratedLength();
252 0 : t->SetIntegratedLength(length);
253 :
254 0 : Double_t alphaB = (Double_t)t->GetAlpha();
255 0 : Double_t xB = (Double_t)t->GetX();
256 0 : Double_t yB = (Double_t)t->GetY();
257 0 : Double_t zB = (Double_t)t->GetZ();
258 0 : Double_t p1B = (Double_t)t->GetSnp();
259 0 : Double_t p2B = (Double_t)t->GetTgl();
260 0 : Double_t p3B = (Double_t)t->GetSigned1Pt();
261 0 : const Double_t *covB = (Double_t*)t->GetCovariance();
262 0 : AliDebug(3,"Track params -now(before)-:");
263 0 : AliDebug(3,Form(" X: %f(%f), Y: %f(%f), Z: %f(%f) --- alpha: %f(%f)",
264 : xB,xA,
265 : yB,yA,
266 : zB,zA,
267 : alphaB,alphaA));
268 0 : AliDebug(3,Form(" p1: %f(%f), p2: %f(%f), p3: %f(%f)",
269 : p1B,p1A,
270 : p2B,p2A,
271 : p3B,p3A));
272 0 : AliDebug(3,Form(" cov1: %f(%f), cov2: %f(%f), cov3: %f(%f)"
273 : " cov4: %f(%f), cov5: %f(%f), cov6: %f(%f)"
274 : " cov7: %f(%f), cov8: %f(%f), cov9: %f(%f)"
275 : " cov10: %f(%f), cov11: %f(%f), cov12: %f(%f)"
276 : " cov13: %f(%f), cov14: %f(%f), cov15: %f(%f)",
277 : covB[0],covA[0],
278 : covB[1],covA[1],
279 : covB[2],covA[2],
280 : covB[3],covA[3],
281 : covB[4],covA[4],
282 : covB[5],covA[5],
283 : covB[6],covA[6],
284 : covB[7],covA[7],
285 : covB[8],covA[8],
286 : covB[9],covA[9],
287 : covB[10],covA[10],
288 : covB[11],covA[11],
289 : covB[12],covA[12],
290 : covB[13],covA[13],
291 : covB[14],covA[14]
292 : ));
293 0 : AliDebug(2,Form(" TOF params: %6d %f %f %f %f %f %6d %3d %f",
294 : i,
295 : t->GetTOFsignalRaw(),
296 : t->GetTOFsignal(),
297 : t->GetTOFsignalToT(),
298 : t->GetTOFsignalDz(),
299 : t->GetTOFsignalDx(),
300 : t->GetTOFCalChannel(),
301 : t->GetTOFcluster(),
302 : t->GetIntegratedLength()));
303 0 : AliDebug(2,Form(" %f %f %f %f %f %f %f %f %f",
304 : time[0], time[1], time[2], time[3], time[4], time[5], time[6], time[7], time[8]));
305 0 : }
306 : }
307 : }
308 :
309 0 : fSeeds->Clear();
310 0 : fTracks->Delete();
311 0 : return 0;
312 :
313 0 : }
314 : //_________________________________________________________________________
315 : void AliTOFtrackerV1::CollectESD() {
316 : //prepare the set of ESD tracks to be matched to clusters in TOF
317 :
318 : Int_t seedsTOF1=0;
319 : Int_t seedsTOF3=0;
320 : Int_t seedsTOF2=0;
321 :
322 0 : TClonesArray &aTOFTrack = *fTracks;
323 0 : for (Int_t i=0; i<fNseeds; i++) {
324 :
325 0 : AliESDtrack *t =(AliESDtrack*)fSeeds->At(i);
326 0 : if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue;
327 :
328 0 : AliTOFtrack *track = new AliTOFtrack(*t); // New
329 0 : Float_t x = (Float_t)track->GetX(); //New
330 :
331 : // TRD 'good' tracks
332 0 : if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) ) {
333 :
334 0 : AliDebug(1,Form(" Before propagation till inner TOF radius, ESDtrackLength=%f, TOFtrackLength=%f",t->GetIntegratedLength(),track->GetIntegratedLength()));
335 :
336 : // TRD 'good' tracks, already propagated at 371 cm
337 0 : if ( x >= AliTOFGeometry::Rmin() ) {
338 :
339 0 : if ( track->PropagateToInnerTOF() ) {
340 :
341 0 : AliDebug(1,Form(" TRD propagated track till rho = %fcm."
342 : " And then the track has been propagated till rho = %fcm.",
343 : x, (Float_t)track->GetX()));
344 :
345 0 : track->SetSeedIndex(i);
346 0 : t->UpdateTrackParams(track,AliESDtrack::kTOFin);
347 0 : new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
348 0 : fNseedsTOF++;
349 0 : seedsTOF1++;
350 :
351 0 : AliDebug(1,Form(" After propagation till inner TOF radius, ESDtrackLength=%f, TOFtrackLength=%f",t->GetIntegratedLength(),track->GetIntegratedLength()));
352 : }
353 0 : delete track;
354 :
355 : }
356 : else { // TRD 'good' tracks, propagated rho<371cm
357 :
358 0 : if ( track->PropagateToInnerTOF() ) {
359 :
360 0 : AliDebug(1,Form(" TRD propagated track till rho = %fcm."
361 : " And then the track has been propagated till rho = %fcm.",
362 : x, (Float_t)track->GetX()));
363 :
364 0 : track->SetSeedIndex(i);
365 0 : t->UpdateTrackParams(track,AliESDtrack::kTOFin);
366 0 : new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
367 0 : fNseedsTOF++;
368 0 : seedsTOF3++;
369 :
370 0 : AliDebug(1,Form(" After propagation till inner TOF radius, ESDtrackLength=%f, TOFtrackLength=%f",t->GetIntegratedLength(),track->GetIntegratedLength()));
371 : }
372 0 : delete track;
373 :
374 : }
375 :
376 : }
377 :
378 : else { // Propagate the rest of TPCbp
379 :
380 0 : AliDebug(1,Form(" Before propagation till inner TOF radius, ESDtrackLength=%f, TOFtrackLength=%f",t->GetIntegratedLength(),track->GetIntegratedLength()));
381 :
382 0 : if ( track->PropagateToInnerTOF() ) {
383 :
384 0 : AliDebug(1,Form(" TRD propagated track till rho = %fcm."
385 : " And then the track has been propagated till rho = %fcm.",
386 : x, (Float_t)track->GetX()));
387 :
388 0 : track->SetSeedIndex(i);
389 0 : t->UpdateTrackParams(track,AliESDtrack::kTOFin);
390 0 : new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track);
391 0 : fNseedsTOF++;
392 0 : seedsTOF2++;
393 0 : }
394 0 : delete track;
395 : }
396 0 : }
397 :
398 0 : AliInfo(Form("Number of TOF seeds = %d (kTRDout371 = %d, kTRDoutLess371 = %d, !kTRDout = %d)",fNseedsTOF,seedsTOF1,seedsTOF3,seedsTOF2));
399 :
400 : // Sort according uncertainties on track position
401 0 : fTracks->Sort();
402 :
403 0 : }
404 : //_________________________________________________________________________
405 : void AliTOFtrackerV1::MatchTracks( ){
406 : //
407 : //Match ESD tracks to clusters in TOF
408 : //
409 :
410 :
411 : // Parameters regulating the reconstruction
412 0 : Float_t dY=AliTOFGeometry::XPad();
413 0 : Float_t dZ=AliTOFGeometry::ZPad();
414 :
415 : const Float_t kTimeOffset = 0.; // time offset for tracking algorithm [ps]
416 :
417 : const Int_t kncmax = 100;
418 0 : Float_t sensRadius = fkRecoParam->GetSensRadius();
419 0 : Float_t scaleFact = fkRecoParam->GetWindowScaleFact();
420 0 : Float_t dyMax=fkRecoParam->GetWindowSizeMaxY();
421 0 : Float_t dzMax=fkRecoParam->GetWindowSizeMaxZ();
422 0 : Double_t maxChi2=fkRecoParam->GetMaxChi2();
423 0 : Bool_t timeWalkCorr = fkRecoParam->GetTimeWalkCorr();
424 0 : AliDebug(1,"++++++++++++++TOF Reconstruction Parameters:++++++++++++");
425 0 : AliDebug(1,Form("TOF sens radius: %f",sensRadius));
426 0 : AliDebug(1,Form("TOF Window scale factor: %f",scaleFact));
427 0 : AliDebug(1,Form("TOF Window max dy: %f",dyMax));
428 0 : AliDebug(1,Form("TOF Window max dz: %f",dzMax));
429 0 : AliDebug(1,Form("TOF Max Chi2: %f",maxChi2));
430 0 : AliDebug(1,Form("Time Walk Correction? : %d",timeWalkCorr));
431 0 : AliDebug(1,"++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
432 :
433 : //The matching loop
434 0 : for (Int_t iseed=0; iseed<fNseedsTOF; iseed++) {
435 :
436 0 : AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(iseed);
437 0 : AliESDtrack *t =(AliESDtrack*)fSeeds->At(track->GetSeedIndex());
438 : //if ( t->GetTOFsignal()>0. ) continue;
439 0 : if ( (t->GetStatus()&AliESDtrack::kTOFout)!=0 ) continue;
440 0 : AliTOFtrack *trackTOFin = new AliTOFtrack(*track);
441 :
442 : // Determine a window around the track
443 0 : Double_t x,par[5]; trackTOFin->GetExternalParameters(x,par);
444 0 : Double_t cov[15]; trackTOFin->GetExternalCovariance(cov);
445 :
446 0 : if (cov[0]<0. || cov[2]<0.) {
447 0 : AliWarning(Form("Very strange track (%d)! At least one of its covariance matrix diagonal elements is negative!",iseed));
448 : //delete trackTOFin;
449 : //continue;
450 0 : }
451 :
452 0 : Double_t z = par[1];
453 0 : Double_t dz = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[2])+dZ*dZ/12.);
454 0 : Double_t dphi = scaleFact*3.*TMath::Sqrt(TMath::Abs(cov[0])+dY*dY/12.)/sensRadius;
455 :
456 0 : Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha();
457 0 : if (phi<-TMath::Pi())phi+=2*TMath::Pi();
458 0 : if (phi>=TMath::Pi())phi-=2*TMath::Pi();
459 :
460 : //upper limit on window's size.
461 0 : if (dz> dzMax) dz=dzMax;
462 0 : if (dphi*sensRadius> dyMax) dphi=dyMax/sensRadius;
463 :
464 : // find the clusters inside the selected window
465 : Int_t nc=0;
466 0 : AliTOFcluster *clusters[kncmax]; // pointers to the clusters in the window
467 0 : Int_t index[kncmax];//to keep track of the cluster index
468 0 : for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) {
469 0 : AliTOFcluster *c=fClusters[k];
470 : // if(nc>kncmax)break; /* R+ fix (buffer overflow) */
471 0 : if (nc>=kncmax) {
472 0 : AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size.");
473 0 : break; /* R+ fix (buffer overflow protection) */
474 : }
475 0 : if (c->GetZ() > z+dz) break;
476 0 : if (c->IsUsed()) continue;
477 0 : if (!c->GetStatus()) {
478 0 : AliDebug(1,"Cluster in channel declared bad!");
479 0 : continue; // skip bad channels as declared in OCDB
480 : }
481 0 : Float_t xyz[3]; c->GetGlobalXYZ(xyz);
482 0 : Double_t clPhi=TMath::ATan2(xyz[1],xyz[0]);
483 0 : Double_t dph=TMath::Abs(clPhi-phi);
484 0 : if (dph>TMath::Pi()) dph-=2.*TMath::Pi();
485 0 : if (TMath::Abs(dph)>dphi) continue;
486 0 : clusters[nc]=c;
487 0 : index[nc] = k;
488 0 : nc++;
489 0 : }
490 :
491 0 : AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",iseed,nc));
492 :
493 : //start propagation: go to the average TOF pad middle plane at ~379.5 cm
494 :
495 : // First of all, propagate the track...
496 : Float_t xTOF = sensRadius;
497 0 : if (!(trackTOFin->PropagateTo(xTOF))) {
498 0 : delete trackTOFin;
499 0 : continue;
500 : }
501 :
502 : // ...and then, if necessary, rotate the track
503 0 : Double_t ymax = xTOF*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
504 0 : Double_t ysect = trackTOFin->GetY();
505 0 : if (ysect > ymax) {
506 0 : if (!(trackTOFin->Rotate(AliTOFGeometry::GetAlpha()))) {
507 0 : delete trackTOFin;
508 0 : continue;
509 : }
510 0 : } else if (ysect <-ymax) {
511 0 : if (!(trackTOFin->Rotate(-AliTOFGeometry::GetAlpha()))) {
512 0 : delete trackTOFin;
513 0 : continue;
514 : }
515 : }
516 :
517 :
518 : AliTOFcluster *bestCluster=0;
519 : Double_t bestChi2=maxChi2;
520 : Int_t idclus=-1;
521 : // for (Int_t i=0; i<nc; i++){ /* R+ fix (unsafe) */
522 0 : for (Int_t i=0; i<nc && i<kncmax; i++){ /* R+ fix (buffer overflow protection) */
523 0 : AliTOFcluster *c=clusters[i]; // one of the preselected clusters
524 0 : Double_t chi2=trackTOFin->GetPredictedChi2((AliCluster3D*)c);
525 0 : if (chi2 >= bestChi2) continue;
526 : bestChi2=chi2;
527 : bestCluster=c;
528 0 : idclus=index[i];
529 0 : }
530 :
531 0 : if (!bestCluster) { // no matching , go to the next track
532 0 : AliDebug(1,Form("No track points for the track number %d",iseed));
533 0 : fnunmatch++;
534 0 : delete trackTOFin;
535 0 : continue;
536 : }
537 :
538 0 : fnmatch++;
539 0 : AliDebug(1,Form(" Matched TOF cluster %d for the track number %d",idclus,iseed));
540 :
541 0 : AliDebug(3, Form("%7i %7i %10i %10i %10i %10i %7i",
542 : iseed,
543 : fnmatch-1,
544 : TMath::Abs(trackTOFin->GetLabel()),
545 : bestCluster->GetLabel(0),
546 : bestCluster->GetLabel(1),
547 : bestCluster->GetLabel(2),
548 : idclus)); // AdC
549 :
550 0 : bestCluster->Use();
551 : if (
552 0 : (bestCluster->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel()))
553 0 : ||
554 0 : (bestCluster->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel()))
555 0 : ||
556 0 : (bestCluster->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel()))
557 : ) {
558 0 : fngoodmatch++;
559 0 : AliDebug(2,Form(" track label good %5d",trackTOFin->GetLabel()));
560 :
561 : } else {
562 0 : fnbadmatch++;
563 0 : AliDebug(2,Form(" track label bad %5d",trackTOFin->GetLabel()));
564 : }
565 :
566 : //Propagate the track to the best matched cluster
567 0 : if (!(trackTOFin->PropagateTo(bestCluster))) {
568 0 : delete trackTOFin;
569 0 : continue;
570 : }
571 :
572 : // If necessary, rotate the track
573 0 : Double_t yATxMax = trackTOFin->GetX()*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
574 0 : Double_t yATx = trackTOFin->GetY();
575 0 : if (yATx > yATxMax) {
576 0 : if (!(trackTOFin->Rotate(AliTOFGeometry::GetAlpha()))) {
577 0 : delete trackTOFin;
578 0 : continue;
579 : }
580 0 : } else if (yATx <-yATxMax) {
581 0 : if (!(trackTOFin->Rotate(-AliTOFGeometry::GetAlpha()))) {
582 0 : delete trackTOFin;
583 0 : continue;
584 : }
585 : }
586 :
587 : // Fill the track residual histograms.
588 0 : FillResiduals(trackTOFin,bestCluster,kFALSE);
589 :
590 : //now take the local distance in Z from the pad center for time walk correction
591 0 : Float_t tiltangle = AliTOFGeometry::GetAngles(bestCluster->GetDetInd(1),bestCluster->GetDetInd(2))*TMath::DegToRad();
592 0 : Double_t dzTW=trackTOFin->GetZ()-bestCluster->GetZ(); // in cm - in the ALICE RF -
593 0 : dzTW/=TMath::Cos(tiltangle); // from ALICE/tracking RF to pad RF (1)
594 0 : dzTW=-dzTW; // from ALICE/tracking RF to pad RF (2)
595 0 : if (tiltangle!=0.) AliDebug(3,Form(" rho_track = %f --- rho_cluster = %f ",trackTOFin->GetX(),bestCluster->GetX()));
596 :
597 : //update the ESD track and delete the TOFtrack
598 0 : t->UpdateTrackParams(trackTOFin,AliESDtrack::kTOFout);
599 :
600 : // Store quantities to be used in the TOF Calibration
601 0 : Float_t tToT=AliTOFGeometry::ToTBinWidth()*bestCluster->GetToT()*1E-3; // in ns
602 0 : t->SetTOFsignalToT(tToT);
603 0 : Float_t rawTime=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDCRAW()+kTimeOffset; // RAW time,in ps
604 0 : t->SetTOFsignalRaw(rawTime);
605 0 : t->SetTOFsignalDz(dzTW);
606 :
607 0 : Float_t deltaY = trackTOFin->GetY()-bestCluster->GetY();
608 0 : t->SetTOFsignalDx(deltaY);
609 :
610 0 : t->SetTOFDeltaBC(bestCluster->GetDeltaBC());
611 0 : t->SetTOFL0L1(bestCluster->GetL0L1Latency());
612 :
613 0 : Float_t distR = (trackTOFin->GetX()-bestCluster->GetX())*
614 0 : (trackTOFin->GetX()-bestCluster->GetX());
615 0 : distR+=deltaY*deltaY;
616 0 : distR+=dzTW*dzTW;
617 0 : distR = TMath::Sqrt(distR);
618 0 : Float_t info[10] = {distR, deltaY, static_cast<Float_t>(dzTW),
619 : 0.,0.,0.,0.,0.,0.,0.};
620 0 : t->SetTOFInfo(info);
621 :
622 0 : Int_t ind[5];
623 0 : ind[0]=bestCluster->GetDetInd(0);
624 0 : ind[1]=bestCluster->GetDetInd(1);
625 0 : ind[2]=bestCluster->GetDetInd(2);
626 0 : ind[3]=bestCluster->GetDetInd(3);
627 0 : ind[4]=bestCluster->GetDetInd(4);
628 0 : Int_t calindex = AliTOFGeometry::GetIndex(ind);
629 0 : t->SetTOFCalChannel(calindex);
630 :
631 : // keep track of the track labels in the matched cluster
632 0 : Int_t tlab[3];
633 0 : tlab[0]=bestCluster->GetLabel(0);
634 0 : tlab[1]=bestCluster->GetLabel(1);
635 0 : tlab[2]=bestCluster->GetLabel(2);
636 0 : AliDebug(3,Form(" tdc time of the matched track %6d = ",bestCluster->GetTDC()));
637 0 : Double_t tof=AliTOFGeometry::TdcBinWidth()*bestCluster->GetTDC()+kTimeOffset; // in ps
638 0 : AliDebug(3,Form(" tof time of the matched track: %f = ",tof));
639 : Double_t tofcorr=tof;
640 0 : if(timeWalkCorr)tofcorr=CorrectTimeWalk(dzTW,tof);
641 0 : AliDebug(3,Form(" tof time of the matched track, after TW corr: %f = ",tofcorr));
642 : //Set TOF time signal and pointer to the matched cluster
643 0 : t->SetTOFsignal(tofcorr);
644 0 : t->SetTOFcluster(idclus); // pointing to the recPoints tree
645 0 : t->SetTOFLabel(tlab);
646 :
647 0 : AliDebug(3,Form(" Setting TOF raw time: %f z distance: %f corrected time: %f",rawTime,dzTW,tofcorr));
648 :
649 0 : Double_t mom=t->GetP();
650 0 : AliDebug(3,Form(" Momentum for track %d -> %f", iseed,mom));
651 : // Fill Reco-QA histos for Reconstruction
652 0 : fHRecNClus->Fill(nc);
653 0 : fHRecChi2->Fill(bestChi2);
654 0 : fHRecDistZ->Fill(dzTW);
655 0 : if (cov[0]>=0.)
656 0 : fHRecSigYVsP->Fill(mom,TMath::Sqrt(cov[0]));
657 : else
658 0 : fHRecSigYVsP->Fill(mom,-TMath::Sqrt(-cov[0]));
659 0 : if (cov[2]>=0.)
660 0 : fHRecSigZVsP->Fill(mom,TMath::Sqrt(cov[2]));
661 : else
662 0 : fHRecSigZVsP->Fill(mom,-TMath::Sqrt(-cov[2]));
663 0 : fHRecSigYVsPWin->Fill(mom,dphi*sensRadius);
664 0 : fHRecSigZVsPWin->Fill(mom,dz);
665 :
666 : // Fill Tree for on-the-fly offline Calibration
667 : // no longer there - all info is in the ESDs now
668 :
669 0 : delete trackTOFin;
670 :
671 0 : }
672 :
673 0 : }
674 : //_________________________________________________________________________
675 : Int_t AliTOFtrackerV1::LoadClusters(TTree *cTree) {
676 : //--------------------------------------------------------------------
677 : //This function loads the TOF clusters
678 : //--------------------------------------------------------------------
679 :
680 0 : Int_t npadX = AliTOFGeometry::NpadX();
681 0 : Int_t npadZ = AliTOFGeometry::NpadZ();
682 0 : Int_t nStripA = AliTOFGeometry::NStripA();
683 0 : Int_t nStripB = AliTOFGeometry::NStripB();
684 0 : Int_t nStripC = AliTOFGeometry::NStripC();
685 :
686 0 : TBranch *branch=cTree->GetBranch("TOF");
687 0 : if (!branch) {
688 0 : AliError("can't get the branch with the TOF clusters !");
689 0 : return 1;
690 : }
691 :
692 0 : static TClonesArray dummy("AliTOFcluster",10000);
693 0 : dummy.Clear();
694 0 : TClonesArray *clusters=&dummy;
695 0 : branch->SetAddress(&clusters);
696 :
697 0 : cTree->GetEvent(0);
698 0 : Int_t nc=clusters->GetEntriesFast();
699 0 : fHDigNClus->Fill(nc);
700 :
701 0 : AliInfo(Form("Number of clusters: %d",nc));
702 :
703 0 : for (Int_t i=0; i<nc; i++) {
704 0 : AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i);
705 : //PH fClusters[i]=new AliTOFcluster(*c); fN++;
706 0 : fClusters[i]=c; fN++;
707 :
708 : // Fill Digits QA histos
709 :
710 0 : Int_t isector = c->GetDetInd(0);
711 0 : Int_t iplate = c->GetDetInd(1);
712 0 : Int_t istrip = c->GetDetInd(2);
713 0 : Int_t ipadX = c->GetDetInd(4);
714 0 : Int_t ipadZ = c->GetDetInd(3);
715 :
716 0 : Float_t time =(AliTOFGeometry::TdcBinWidth()*c->GetTDC())*1E-3; // in ns
717 0 : Float_t tot = (AliTOFGeometry::TdcBinWidth()*c->GetToT())*1E-3;//in ns
718 :
719 : Int_t stripOffset = 0;
720 0 : switch (iplate) {
721 : case 0:
722 : stripOffset = 0;
723 0 : break;
724 : case 1:
725 : stripOffset = nStripC;
726 0 : break;
727 : case 2:
728 0 : stripOffset = nStripC+nStripB;
729 0 : break;
730 : case 3:
731 0 : stripOffset = nStripC+nStripB+nStripA;
732 0 : break;
733 : case 4:
734 0 : stripOffset = nStripC+nStripB+nStripA+nStripB;
735 0 : break;
736 : default:
737 0 : AliError(Form("Wrong plate number in TOF (%d) !",iplate));
738 0 : break;
739 : };
740 0 : Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
741 0 : Int_t phiindex=npadX*isector+ipadX+1;
742 0 : fHDigClusMap->Fill(zindex,phiindex);
743 0 : fHDigClusTime->Fill(time);
744 0 : fHDigClusToT->Fill(tot);
745 : }
746 :
747 :
748 : return 0;
749 0 : }
750 : //_________________________________________________________________________
751 : void AliTOFtrackerV1::UnloadClusters() {
752 : //--------------------------------------------------------------------
753 : //This function unloads TOF clusters
754 : //--------------------------------------------------------------------
755 0 : for (Int_t i=0; i<fN; i++) {
756 : //PH delete fClusters[i];
757 0 : fClusters[i] = 0x0;
758 : }
759 0 : fN=0;
760 0 : }
761 :
762 : //_________________________________________________________________________
763 : Int_t AliTOFtrackerV1::FindClusterIndex(Double_t z) const {
764 : //--------------------------------------------------------------------
765 : // This function returns the index of the nearest cluster
766 : //--------------------------------------------------------------------
767 : //MOD
768 : //Here we need to get the Z in the tracking system
769 :
770 0 : if (fN==0) return 0;
771 0 : if (z <= fClusters[0]->GetZ()) return 0;
772 0 : if (z > fClusters[fN-1]->GetZ()) return fN;
773 0 : Int_t b=0, e=fN-1, m=(b+e)/2;
774 0 : for (; b<e; m=(b+e)/2) {
775 0 : if (z > fClusters[m]->GetZ()) b=m+1;
776 : else e=m;
777 : }
778 : return m;
779 0 : }
780 :
781 : //_________________________________________________________________________
782 : Bool_t AliTOFtrackerV1::GetTrackPoint(Int_t index, AliTrackPoint& p) const
783 : {
784 : // Get track space point with index i
785 : // Coordinates are in the global system
786 0 : AliTOFcluster *cl = fClusters[index];
787 0 : Float_t xyz[3];
788 0 : cl->GetGlobalXYZ(xyz);
789 0 : Float_t phi=TMath::ATan2(xyz[1],xyz[0]);
790 0 : Float_t phiangle = (Int_t(phi*TMath::RadToDeg()/20.)+0.5)*20.*TMath::DegToRad();
791 0 : Float_t sinphi = TMath::Sin(phiangle), cosphi = TMath::Cos(phiangle);
792 0 : Float_t tiltangle = AliTOFGeometry::GetAngles(cl->GetDetInd(1),cl->GetDetInd(2))*TMath::DegToRad();
793 0 : Float_t sinth = TMath::Sin(tiltangle), costh = TMath::Cos(tiltangle);
794 0 : Float_t sigmay2 = AliTOFGeometry::XPad()*AliTOFGeometry::XPad()/12.;
795 0 : Float_t sigmaz2 = AliTOFGeometry::ZPad()*AliTOFGeometry::ZPad()/12.;
796 0 : Float_t cov[6];
797 0 : cov[0] = sinphi*sinphi*sigmay2 + cosphi*cosphi*sinth*sinth*sigmaz2;
798 0 : cov[1] = -sinphi*cosphi*sigmay2 + sinphi*cosphi*sinth*sinth*sigmaz2;
799 0 : cov[2] = -cosphi*sinth*costh*sigmaz2;
800 0 : cov[3] = cosphi*cosphi*sigmay2 + sinphi*sinphi*sinth*sinth*sigmaz2;
801 0 : cov[4] = -sinphi*sinth*costh*sigmaz2;
802 0 : cov[5] = costh*costh*sigmaz2;
803 0 : p.SetXYZ(xyz[0],xyz[1],xyz[2],cov);
804 :
805 : // Detector numbering scheme
806 0 : Int_t nSector = AliTOFGeometry::NSectors();
807 0 : Int_t nPlate = AliTOFGeometry::NPlates();
808 0 : Int_t nStripA = AliTOFGeometry::NStripA();
809 0 : Int_t nStripB = AliTOFGeometry::NStripB();
810 0 : Int_t nStripC = AliTOFGeometry::NStripC();
811 :
812 0 : Int_t isector = cl->GetDetInd(0);
813 0 : if (isector >= nSector)
814 0 : AliError(Form("Wrong sector number in TOF (%d) !",isector));
815 0 : Int_t iplate = cl->GetDetInd(1);
816 0 : if (iplate >= nPlate)
817 0 : AliError(Form("Wrong plate number in TOF (%d) !",iplate));
818 0 : Int_t istrip = cl->GetDetInd(2);
819 :
820 : Int_t stripOffset = 0;
821 0 : switch (iplate) {
822 : case 0:
823 : stripOffset = 0;
824 0 : break;
825 : case 1:
826 : stripOffset = nStripC;
827 0 : break;
828 : case 2:
829 0 : stripOffset = nStripC+nStripB;
830 0 : break;
831 : case 3:
832 0 : stripOffset = nStripC+nStripB+nStripA;
833 0 : break;
834 : case 4:
835 0 : stripOffset = nStripC+nStripB+nStripA+nStripB;
836 0 : break;
837 : default:
838 0 : AliError(Form("Wrong plate number in TOF (%d) !",iplate));
839 0 : break;
840 : };
841 :
842 0 : Int_t idet = (2*(nStripC+nStripB)+nStripA)*isector +
843 0 : stripOffset +
844 : istrip;
845 0 : UShort_t volid = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,idet);
846 0 : p.SetVolumeID((UShort_t)volid);
847 0 : return kTRUE;
848 0 : }
849 : //_________________________________________________________________________
850 : void AliTOFtrackerV1::InitCheckHists() {
851 :
852 : //Init histos for Digits/Reco QA and Calibration
853 :
854 0 : TDirectory *dir = gDirectory;
855 : TFile *logFileTOF = 0;
856 :
857 0 : TSeqCollection *list = gROOT->GetListOfFiles();
858 0 : int n = list->GetEntries();
859 : Bool_t isThere=kFALSE;
860 0 : for(int i=0; i<n; i++) {
861 0 : logFileTOF = (TFile*)list->At(i);
862 0 : if (strstr(logFileTOF->GetName(), "TOFQA.root")){
863 : isThere=kTRUE;
864 0 : break;
865 : }
866 : }
867 :
868 0 : if(!isThere)logFileTOF = new TFile( "TOFQA.root","RECREATE");
869 0 : logFileTOF->cd();
870 :
871 : //Digits "QA"
872 0 : fHDigClusMap = new TH2F("TOFDig_ClusMap", "",182,0.5,182.5,864, 0.5,864.5);
873 0 : fHDigNClus = new TH1F("TOFDig_NClus", "",200,0.5,200.5);
874 0 : fHDigClusTime = new TH1F("TOFDig_ClusTime", "",2000,0.,200.);
875 0 : fHDigClusToT = new TH1F("TOFDig_ClusToT", "",500,0.,100);
876 :
877 : //Reco "QA"
878 0 : fHRecNClus =new TH1F("TOFRec_NClusW", "",50,0.5,50.5);
879 0 : fHRecDistZ=new TH1F("TOFRec_DistZ", "",50,0.5,10.5);
880 0 : fHRecChi2=new TH1F("TOFRec_Chi2", "",100,0.,10.);
881 0 : fHRecSigYVsP=new TH2F("TOFDig_SigYVsP", "",40,0.,4.,100, 0.,5.);
882 0 : fHRecSigZVsP=new TH2F("TOFDig_SigZVsP", "",40,0.,4.,100, 0.,5.);
883 0 : fHRecSigYVsPWin=new TH2F("TOFDig_SigYVsPWin", "",40,0.,4.,100, 0.,50.);
884 0 : fHRecSigZVsPWin=new TH2F("TOFDig_SigZVsPWin", "",40,0.,4.,100, 0.,50.);
885 :
886 0 : dir->cd();
887 :
888 0 : }
889 :
890 : //_________________________________________________________________________
891 : void AliTOFtrackerV1::SaveCheckHists() {
892 :
893 : //write histos for Digits/Reco QA and Calibration
894 :
895 0 : TDirectory *dir = gDirectory;
896 : //TFile *logFile = 0;
897 : TFile *logFileTOF = 0;
898 :
899 0 : TSeqCollection *list = gROOT->GetListOfFiles();
900 0 : int n = list->GetEntries();
901 : /*
902 : for(int i=0; i<n; i++) {
903 : logFile = (TFile*)list->At(i);
904 : if (strstr(logFile->GetName(), "AliESDs.root")) break;
905 : }
906 : */
907 : Bool_t isThere=kFALSE;
908 0 : for(int i=0; i<n; i++) {
909 0 : logFileTOF = (TFile*)list->At(i);
910 0 : if (strstr(logFileTOF->GetName(), "TOFQA.root")){
911 : isThere=kTRUE;
912 0 : break;
913 : }
914 : }
915 :
916 0 : if(!isThere) {
917 0 : AliError(Form("File TOFQA.root not found!! not wring histograms...."));
918 0 : return;
919 : }
920 : //logFile->cd();
921 0 : logFileTOF->cd();
922 0 : fHDigClusMap->Write(fHDigClusMap->GetName(), TObject::kOverwrite);
923 0 : fHDigNClus->Write(fHDigNClus->GetName(), TObject::kOverwrite);
924 0 : fHDigClusTime->Write(fHDigClusTime->GetName(), TObject::kOverwrite);
925 0 : fHDigClusToT->Write(fHDigClusToT->GetName(), TObject::kOverwrite);
926 0 : fHRecNClus->Write(fHRecNClus->GetName(), TObject::kOverwrite);
927 0 : fHRecChi2->Write(fHRecChi2->GetName(), TObject::kOverwrite);
928 0 : fHRecDistZ->Write(fHRecDistZ->GetName(), TObject::kOverwrite);
929 0 : fHRecSigYVsP->Write(fHRecSigYVsP->GetName(), TObject::kOverwrite);
930 0 : fHRecSigZVsP->Write(fHRecSigZVsP->GetName(), TObject::kOverwrite);
931 0 : fHRecSigYVsPWin->Write(fHRecSigYVsPWin->GetName(), TObject::kOverwrite);
932 0 : fHRecSigZVsPWin->Write(fHRecSigZVsPWin->GetName(), TObject::kOverwrite);
933 : //logFile->Flush();
934 0 : logFileTOF->Flush();
935 :
936 0 : dir->cd();
937 :
938 0 : }
939 : //_________________________________________________________________________
940 : Float_t AliTOFtrackerV1::CorrectTimeWalk( Float_t dist, Float_t tof) const {
941 :
942 : //dummy, for the moment
943 : Float_t tofcorr=0.;
944 0 : if(dist<AliTOFGeometry::ZPad()*0.5){
945 : tofcorr=tof;
946 : //place here the actual correction
947 : }else{
948 : tofcorr=tof;
949 : }
950 0 : return tofcorr;
951 : }
952 : //_________________________________________________________________________
953 : Float_t AliTOFtrackerV1::GetTimeZerofromT0(const AliESDEvent * const event) const {
954 :
955 : //Returns TimeZero as measured by T0 detector
956 :
957 0 : return event->GetT0();
958 : }
959 : //_________________________________________________________________________
960 : Float_t AliTOFtrackerV1::GetTimeZerofromTOF(AliESDEvent * /*event*/) const {
961 :
962 : //dummy, for the moment. T0 algorithm using tracks on TOF
963 : {
964 : //place T0 algo here...
965 : }
966 0 : return 0.;
967 : }
968 : //_________________________________________________________________________
969 :
970 : void AliTOFtrackerV1::FillClusterArray(TObjArray* arr) const
971 : {
972 : //
973 : // Returns the TOF cluster array
974 : //
975 :
976 0 : if (fN==0)
977 0 : arr = 0x0;
978 : else
979 0 : for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]);
980 :
981 0 : }
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