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d599d913 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
88cb7938 16/* $Id$ */
17
d599d913 18//_________________________________________________________________________
0e46b9ae 19//
d599d913 20// This is a TTask that made the calculation of the Time zero using TOF.
7aeeaf38 21// Description: The algorithm used to calculate the time zero of
22// interaction using TOF detector is the following.
23// We select in the MonteCarlo some primary particles - or tracks in
24// the following - that strike the TOF detector (the larger part are
25// pions, kaons or protons).
26// We choose a set of 10 selected tracks, for each track You have the
27// length of the track when the TOF is reached (a standard TOF hit
28// does not contain this additional information, this is the reason
29// why we implemented a new time zero dedicated TOF hit class
30// AliTOFhitT0; in order to store this type of hit You have to use the
31// AliTOFv4T0 as TOF class in Your Config.C. In AliTOFv4T0 the
32// StepManager was modified in order to fill the TOF hit branch with
33// this type of hits; in fact the AliTOF::AddT0Hit is called rather
34// that the usual AliTOF::AddHit), the momentum at generation (from
35// TreeK) and the time of flight given by the TOF detector.
36// (Observe that the ctor of the AliTOF class, when the AliTOFv4T0
37// class is used, is called with the "tzero" option: it is in order
38// create the fHits TClonesArray filled with AliTOFhitT0 objects,
39// rather than with normal AliTOFhit)
40// Then Momentum and time of flight for each track are smeared
41// according to known experimental resolution (all sources of error
42// have been token into account).
43// Let consider now only one set of 10 tracks (the algorithm is the
44// same for all sets).
45// Assuming the (mass) hypothesis that each track can be AUT a pion,
46// AUT a kaon, AUT a proton, we consider all the 3 at 10 possible
47// cases.
d599d913 48// For each track in each (mass) configuration
7aeeaf38 49// (a configuration can be
50// e.g. pion/pion/kaon/proton/pion/proton/kaon/kaon/pion/pion)
51// we calculate the time zero (we know in fact the velocity of the
52// track after the assumption about its mass, the time of flight given
53// by the TOF, and the corresponding path travelled till the TOF
54// detector). Then for each mass configuration we have 10 time zero
55// and we can calculate the ChiSquare for the current configuration
56// using the weighted mean over all 10 time zero.
57// We call the best assignment the mass configuration that gives the
58// minimum value of the ChiSquare.
59// We plot the weighted mean over all 10 time zero for the best
60// assignment, the ChiSquare for the best assignment and the
61// corresponding confidence level.
62// The strong assumption is the MC selection of primary particles. It
63// will be introduced in the future also some more realistic
64// simulation about this point.
0e46b9ae 65//
d599d913 66// Use case:
67// root [0] AliTOFT0 * tzero = new AliTOFT0("galice.root")
68// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
69// root [1] tzero->ExecuteTask()
70// root [2] tzero->ExecuteTask("tim")
71// // available parameters:
72// tim - print benchmarking information
7aeeaf38 73// all - print usefull informations about the number of
74// misidentified tracks and a comparison about the
75// true configuration (known from MC) and the best
d599d913 76// assignment
0e46b9ae 77//
d599d913 78//-- Author: F. Pierella
0e46b9ae 79//
80//_________________________________________________________________________
81
e939a978 82#include <TCanvas.h>
83#include <TClonesArray.h>
84#include <TFile.h>
5c7c93fa 85//#include <TFolder.h>
e939a978 86#include <TFrame.h>
87#include <TH1.h>
88#include <TParticle.h>
89#include <TBenchmark.h>
90#include <TTask.h>
91#include <TTree.h>
92#include <TRandom.h>
a1e17193 93#include <TROOT.h>
0e46b9ae 94
c93255fe 95#include "AliLoader.h"
d3c7bfac 96#include "AliMC.h"
88cb7938 97#include "AliRun.h"
d3c7bfac 98
d599d913 99#include "AliTOFhitT0.h"
0e46b9ae 100#include "AliTOFT0.h"
101#include "AliTOF.h"
102
5c7c93fa 103extern TROOT *gROOT;
104extern TRandom *gRandom;
105extern TBenchmark *gBenchmark;
106
107extern AliRun *gAlice;
108
d599d913 109ClassImp(AliTOFT0)
110
111//____________________________________________________________________________
655e379f 112AliTOFT0::AliTOFT0():
113 TTask("AliTOFT0",""),
114 fNevents(0),
115 fTimeResolution(0),
116 fLowerMomBound(0),
117 fUpperMomBound(0),
118 fT0File(""),
119 fHeadersFile("")
d599d913 120{
121 // ctor
d599d913 122}
123
124//____________________________________________________________________________
655e379f 125AliTOFT0::AliTOFT0(char* headerFile, Int_t nEvents):
126 TTask("AliTOFT0",""),
127 fNevents(nEvents),
128 fTimeResolution(1.2e-10),
129 fLowerMomBound(1.5),
130 fUpperMomBound(2.),
131 fT0File(""),
132 fHeadersFile(headerFile)
d599d913 133{
7aeeaf38 134 //
135 //
136 //
137
655e379f 138 //fNevents=nEvents ; // Number of events for which calculate the T0,
d599d913 139 // default 0: it means all evens in current file
655e379f 140 //fLowerMomBound=1.5; // [GeV/c] default value
141 //fUpperMomBound=2. ; // [GeV/c] default value
142 //fTimeResolution = 1.2e-10; // 120 ps by default
143 //fHeadersFile = headerFile ;
d599d913 144
145 TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
146
147 //File was not opened yet
148 if(file == 0){
149 if(fHeadersFile.Contains("rfio"))
150 file = TFile::Open(fHeadersFile,"update") ;
151 else
152 file = new TFile(fHeadersFile.Data(),"update") ;
153 gAlice = (AliRun *) file->Get("gAlice") ;
154 }
155
156 // add Task to //root/Tasks folder
157 TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
158 roottasks->Add(this) ;
159}
160
5c016a7b 161//____________________________________________________________________________
655e379f 162AliTOFT0::AliTOFT0(const AliTOFT0 & tzero):
163 TTask("AliTOFT0",""),
164 fNevents(0),
165 fTimeResolution(0),
166 fLowerMomBound(0),
167 fUpperMomBound(0),
168 fT0File(""),
169 fHeadersFile("")
5c016a7b 170{
7aeeaf38 171 // copy ctr
172
5c016a7b 173( (AliTOFT0 &)tzero ).Copy(*this);
174}
175
a3b608e8 176//____________________________________________________________________________
177AliTOFT0& AliTOFT0::operator = (const AliTOFT0 & tzero)
178{
179 if (this==&tzero) return *this;
180
181 fNevents=tzero.fNevents;
182 fTimeResolution=tzero.fTimeResolution;
183 fLowerMomBound=tzero.fLowerMomBound;
184 fUpperMomBound=tzero.fUpperMomBound;
185 fT0File=tzero.fT0File;
186 fHeadersFile=tzero.fHeadersFile;
187 return *this;
188
189}
190
d599d913 191//____________________________________________________________________________
192 AliTOFT0::~AliTOFT0()
193{
194 // dtor
195}
196
197//____________________________________________________________________________
198void AliTOFT0::Exec(Option_t *option)
199{
200 //
201 // calculate T0 distribution for all events using chisquare
202 //
203 Int_t ngood=0;
204 Int_t nmisidentified=0;
205 Int_t nmisidentified0=0;
206 Int_t nmisidentified1=0;
207 Int_t nmisidentified2=0;
208 Int_t nmisidentified3=0;
209 Int_t nmisidentified4=0;
210 Int_t nmisidentified5=0;
211 Int_t nmisidentified6=0;
212 Int_t nmisidentified7=0;
213 Int_t nmisidentified8=0;
214 Int_t nmisidentified9=0;
215 Int_t ipartold = -1;
216 Int_t ipart;
217 Int_t selected=0;
218 Int_t istop=0;
219 Float_t timeresolutioninns=fTimeResolution*(1.e+9); // convert in [ns]
220 const Int_t kUPDATE = 5; // for visual option
221 Int_t itimes=0;
222 TCanvas* c1=0;
223 TCanvas* c2=0;
224 TCanvas* c3=0;
225
226 if(strstr(option,"visual")){
227 // Create a new canvas.
228 //c1 = new TCanvas("c1","Dynamic Visual Filling of time zero histo",10,10,500,500);
229 c1 = new TCanvas("c1","Dynamic Visual Filling of time zero histo",10,10,370,370);
230 c1->SetFillColor(35);
231 c1->GetFrame()->SetFillColor(21);
232 c1->GetFrame()->SetBorderSize(6);
233 c1->GetFrame()->SetBorderMode(-1);
234
235 //c2 = new TCanvas("c2","Dynamic Visual Filling of chisquare histo",550,10,500,500);
236 c2 = new TCanvas("c2","Dynamic Visual Filling of chisquare histo",380,10,370,370);
237 c2->SetFillColor(35);
238 c2->GetFrame()->SetFillColor(21);
239 c2->GetFrame()->SetBorderSize(6);
240 c2->GetFrame()->SetBorderMode(-1);
241
242 //c3 = new TCanvas("c3","Dynamic Visual Filling of confidence level histo",280,550,500,500);
243 c3 = new TCanvas("c3","Dynamic Visual Filling of confidence level histo",760,10,370,370);
244 c3->SetFillColor(35);
245 c3->GetFrame()->SetFillColor(21);
246 c3->GetFrame()->SetBorderSize(6);
247 c3->GetFrame()->SetBorderMode(-1);
248 }
249
250 if(strstr(option,"tim") || strstr(option,"all"))
251 gBenchmark->Start("TOFT0");
252
253 TH1F *htzerobest= new TH1F("htzerobest","T0 for best assignment",200,-1.,1.);
254 TH1F* hchibest = new TH1F("hchibest","ChiSquare Min Distribution",80,0.,40.);
255 TH1F* hchibestconflevel = new TH1F("hchibestconflevel","ChiSquare Min Confidence Level",10,0.,1.);
256
257 // setting histo colors
258 if(strstr(option,"visual")){
259 htzerobest->SetFillColor(48);
260 hchibest->SetFillColor(50);
261 hchibestconflevel->SetFillColor(52);
262 }
263
264 Int_t assparticle[10]={3,3,3,3,3,3,3,3,3,3};
265 Int_t truparticle[10]={3,3,3,3,3,3,3,3,3,3};
266 Float_t t0best=999.;
267 Float_t timeofflight[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
268 Float_t momentum[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
269 Float_t timezero[10];
270 Float_t weightedtimezero[10];
271 Float_t beta[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
272 Float_t sqMomError[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
273 Float_t sqTrackError[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
274 Float_t massarray[3]={0.13957,0.493677,0.9382723};
275 Float_t dummychisquare=0.;
276 Float_t chisquare=999.;
277 Float_t tracktoflen[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
278
7aeeaf38 279 AliTOF *detTOF = (AliTOF *) gAlice->GetDetector ("TOF");
d599d913 280
7aeeaf38 281 if (!detTOF) {
d599d913 282 Error("AliTOFT0","TOF not found");
283 return;
284 }
285
286 if(strstr(option,"all")){
4682c56e 287 AliInfo(Form("Selecting primary tracks with momentum between %f GeV/c and %f GeV/c", fLowerMomBound, fUpperMomBound));
13242232 288 AliInfo("Memorandum: 0 means PION | 1 means KAON | 2 means PROTON");
d599d913 289 }
290
33c3c91a 291 if (fNevents == 0) fNevents = (Int_t) AliRunLoader::Instance()->TreeE()->GetEntries();
d599d913 292
293 for (Int_t ievent = 0; ievent < fNevents; ievent++) {
294 gAlice->GetEvent(ievent);
cb5b8b21 295 TTree *hitTree = detTOF->GetLoader()->TreeH ();
7aeeaf38 296 if (!hitTree)
d599d913 297 return;
298 TParticle* particle;
299 AliTOFhitT0* tofHit;
7aeeaf38 300 TClonesArray* tofHits = detTOF->Hits();
d599d913 301
302 Int_t lasttrack=-1;
303 Int_t nset=0;
5fff655e 304
7aeeaf38 305 hitTree->SetBranchStatus("*",0); // switch off all branches
306 hitTree->SetBranchStatus("TOF*",1); // switch on only TOF
5fff655e 307
d599d913 308 // Start loop on primary tracks in the hits containers
309
7aeeaf38 310 Int_t ntracks = static_cast<Int_t>(hitTree->GetEntries());
d599d913 311 for (Int_t track = 0; track < ntracks; track++)
312 {
313 if(nset>=5) break; // check on the number of set analyzed
314
3e2e3ece 315 gAlice->GetMCApp()->ResetHits();
7aeeaf38 316 hitTree->GetEvent(track);
0e46b9ae 317
1d834a1e 318 //AliMC *mcApplication = (AliMC*)gAlice->GetMCApp();
0e46b9ae 319
1d834a1e 320 //particle = mcApplication->Particle(track);
7aeeaf38 321 Int_t nhits = tofHits->GetEntriesFast();
d599d913 322
323 for (Int_t hit = 0; hit < nhits; hit++)
324 {
7aeeaf38 325 tofHit = (AliTOFhitT0 *) tofHits->UncheckedAt(hit);
d599d913 326 ipart = tofHit->GetTrack();
327 // check to discard the case when the same particle is selected more than one
328 // time
329
330 if (ipart != ipartold){
331
5d12ce38 332 particle = (TParticle*)gAlice->GetMCApp()->Particle(ipart);
d599d913 333
334 Float_t idealtime=tofHit->GetTof();
335 // Float_t time=idealtime;
336 Float_t time = gRandom->Gaus(idealtime, fTimeResolution);
337 Float_t toflen=tofHit->GetLen();
338 toflen=toflen/100.; // toflen given in m
339 Int_t pdg = particle->GetPdgCode();
340 Int_t abspdg =TMath::Abs(pdg);
341 Float_t idealmom = particle->P();
342 Float_t momres=idealmom*0.025; // 2.5% res token into account for all momenta
343 Float_t mom =gRandom->Gaus(idealmom,momres);
344
345 Bool_t isgoodpart=(abspdg==211 || abspdg==2212 || abspdg==321);
346
347 time*=1.E+9; // tof given in nanoseconds
348 if (particle->GetFirstMother() < 0 && isgoodpart && mom<=fUpperMomBound && mom>=fLowerMomBound){
349 selected+=1;
350 istop=selected;
351 if(istop>10) break;
352 Int_t index=selected-1;
353 timeofflight[index]=time;
354 tracktoflen[index]=toflen;
355 momentum[index]=mom;
0e46b9ae 356 //AliInfo(Form(" %d %d %d ", timeofflight[index], tracktoflen[index], momentum[index]));
d599d913 357 switch (abspdg) {
358 case 211:
359 truparticle[index]=0;
360 break ;
361 case 321:
362 truparticle[index]=1;
363 break ;
364 case 2212:
365 truparticle[index]=2;
366 break ;
367 }
368
369 }
370 ipartold = ipart;
371
372 if(istop==10){ // start analysis on current set
373 nset+=1;
374 lasttrack=track;
375 istop=0;
376 selected=0;
0e46b9ae 377 //AliInfo("starting t0 calculation for current set");
d599d913 378 for (Int_t i1=0; i1<3;i1++) {
ea7a588a 379 beta[0]=momentum[0]/sqrt(massarray[i1]*massarray[i1]+momentum[0]*momentum[0]);
d599d913 380 for (Int_t i2=0; i2<3;i2++) {
ea7a588a 381 beta[1]=momentum[1]/sqrt(massarray[i2]*massarray[i2]+momentum[1]*momentum[1]);
d599d913 382 for (Int_t i3=0; i3<3;i3++) {
ea7a588a 383 beta[2]=momentum[2]/sqrt(massarray[i3]*massarray[i3]+momentum[2]*momentum[2]);
d599d913 384 for (Int_t i4=0; i4<3;i4++) {
ea7a588a 385 beta[3]=momentum[3]/sqrt(massarray[i4]*massarray[i4]+momentum[3]*momentum[3]);
d599d913 386 for (Int_t i5=0; i5<3;i5++) {
ea7a588a 387 beta[4]=momentum[4]/sqrt(massarray[i5]*massarray[i5]+momentum[4]*momentum[4]);
d599d913 388 for (Int_t i6=0; i6<3;i6++) {
ea7a588a 389 beta[5]=momentum[5]/sqrt(massarray[i6]*massarray[i6]+momentum[5]*momentum[5]);
d599d913 390 for (Int_t i7=0; i7<3;i7++) {
ea7a588a 391 beta[6]=momentum[6]/sqrt(massarray[i7]*massarray[i7]+momentum[6]*momentum[6]);
d599d913 392 for (Int_t i8=0; i8<3;i8++) {
ea7a588a 393 beta[7]=momentum[7]/sqrt(massarray[i8]*massarray[i8]+momentum[7]*momentum[7]);
d599d913 394 for (Int_t i9=0; i9<3;i9++) {
ea7a588a 395 beta[8]=momentum[8]/sqrt(massarray[i9]*massarray[i9]+momentum[8]*momentum[8]);
d599d913 396 for (Int_t i10=0; i10<3;i10++) {
d599d913 397 beta[9]=momentum[9]/sqrt(massarray[i10]*massarray[i10]+momentum[9]*momentum[9]);
398
d599d913 399 Float_t meantzero=0.;
400 Float_t sumAllweights=0.;
401 for (Int_t itz=0; itz<10;itz++) {
402 sqMomError[itz]=((1.-beta[itz]*beta[itz])*0.025)*((1.-beta[itz]*beta[itz])*0.025)*(tracktoflen[itz]/(0.299792*beta[itz]))*(tracktoflen[itz]/(0.299792*beta[itz])); // this gives the square of the momentum error in nanoseconds
403 sqTrackError[itz]=(timeresolutioninns*timeresolutioninns+sqMomError[itz]); // total error for the current track
404 sumAllweights+=1./sqTrackError[itz];
ea7a588a 405
406 timezero[itz]=(tracktoflen[itz]/(beta[itz]*0.299792))-timeofflight[itz];
407 weightedtimezero[itz]=((tracktoflen[itz]/(beta[itz]*0.299792))-timeofflight[itz])/sqTrackError[itz];// weighted time zero for current track
d599d913 408 meantzero+=weightedtimezero[itz];
409 } // end loop for (Int_t itz=0; itz<10;itz++)
410 meantzero=meantzero/sumAllweights; // it is given in [ns]
411
412 dummychisquare=0.;
413 // calculate the chisquare for the current assignment
414 for (Int_t icsq=0; icsq<10;icsq++) {
415 dummychisquare+=(timezero[icsq]-meantzero)*(timezero[icsq]-meantzero)/sqTrackError[icsq];
416 } // end loop for (Int_t icsq=0; icsq<10;icsq++)
417
418 if(dummychisquare<=chisquare){
419 assparticle[0]=i1;
420 assparticle[1]=i2;
421 assparticle[2]=i3;
422 assparticle[3]=i4;
423 assparticle[4]=i5;
424 assparticle[5]=i6;
425 assparticle[6]=i7;
426 assparticle[7]=i8;
427 assparticle[8]=i9;
428 assparticle[9]=i10;
429 chisquare=dummychisquare;
430 t0best=meantzero;
431 } // close if(dummychisquare<=chisquare)
432
433 } // end loop on i10
434 } // end loop on i9
435 } // end loop on i8
436 } // end loop on i7
437 } // end loop on i6
438 } // end loop on i5
439 } // end loop on i4
440 } // end loop on i3
441 } // end loop on i2
442 } // end loop on i1
443
444 if(truparticle[0]==assparticle[0] && truparticle[1]==assparticle[1] && truparticle[2]==assparticle[2] && truparticle[3]==assparticle[3] && truparticle[4]==assparticle[4]&& truparticle[5]==assparticle[5] && truparticle[6]==assparticle[6] && truparticle[7]==assparticle[7] && truparticle[8]==assparticle[8] && truparticle[9]==assparticle[9]) ngood+=1;
445 if(truparticle[0]!=assparticle[0]) nmisidentified0+=1;
446 if(truparticle[1]!=assparticle[1]) nmisidentified1+=1;
447 if(truparticle[2]!=assparticle[2]) nmisidentified2+=1;
448 if(truparticle[3]!=assparticle[3]) nmisidentified3+=1;
449 if(truparticle[4]!=assparticle[4]) nmisidentified4+=1;
450 if(truparticle[5]!=assparticle[5]) nmisidentified5+=1;
451 if(truparticle[6]!=assparticle[6]) nmisidentified6+=1;
452 if(truparticle[7]!=assparticle[7]) nmisidentified7+=1;
453 if(truparticle[8]!=assparticle[8]) nmisidentified8+=1;
454 if(truparticle[9]!=assparticle[9]) nmisidentified9+=1;
455 // filling histos
456 htzerobest->Fill(t0best);
457 hchibest->Fill(chisquare);
458 Double_t dblechisquare=(Double_t)chisquare;
459 Float_t confLevel=(Float_t)TMath::Prob(dblechisquare,9); // ndf 10-1=9
460 hchibestconflevel->Fill(confLevel);
461 itimes++;
462 if(strstr(option,"all")){
0e46b9ae 463 AliInfo(Form("True Assignment %d %d %d %d %d %d %d %d %d %d", truparticle[0], truparticle[1], truparticle[2], truparticle[3], truparticle[4], truparticle[5], truparticle[6], truparticle[7], truparticle[8], truparticle[9]));
464 AliInfo(Form("Best Assignment %d %d %d %d %d %d %d %d %d %d", assparticle[0], assparticle[1], assparticle[2], assparticle[3], assparticle[4], assparticle[5], assparticle[6], assparticle[7], assparticle[8], assparticle[9]));
4682c56e 465 AliInfo(Form("Minimum ChiSquare for current set %f ", chisquare));
466 AliInfo(Form("Confidence Level (Minimum ChiSquare) %f", confLevel));
d599d913 467 }
468 if (strstr(option,"visual") && itimes && (itimes%kUPDATE) == 0) {
469 if (itimes == kUPDATE){
470 c1->cd();
471 htzerobest->Draw();
472 c2->cd();
473 hchibest->Draw();
474 c3->cd();
475 hchibestconflevel->Draw();
476 }
477 c1->Modified();
478 c1->Update();
479 c2->Modified();
480 c2->Update();
481 c3->Modified();
482 c3->Update();
483 if (gSystem->ProcessEvents())
484 break;
485 }
486 chisquare=999.;
487 t0best=999.;
488
489 } // end for the current set. close if(istop==5)
490 } // end condition on ipartold
491 } // end loop on hits for the current track
492 if(istop>=10) break;
493 } // end loop on ntracks
494 } //event loop
495
496 if(strstr(option,"all")){
497 nmisidentified=(nmisidentified0+nmisidentified1+nmisidentified2+nmisidentified3+nmisidentified4+nmisidentified5+nmisidentified6+nmisidentified7+nmisidentified8+nmisidentified9);
0e46b9ae 498 AliInfo(Form("total number of tracks token into account %i", 10*5*fNevents));
d599d913 499 Float_t badPercentage=100.*(Float_t)nmisidentified/(10*5*fNevents);
4c6e817d 500 AliInfo(Form("total misidentified %i (%f %%) ", nmisidentified, badPercentage));
0e46b9ae 501 AliInfo(Form("Total Number of set token into account %i", 5*fNevents));
d599d913 502 Float_t goodSetPercentage=100.*(Float_t)ngood/(5*fNevents);
4c6e817d 503 AliInfo(Form("Number of set with no misidentified tracks %i (%f %%)", ngood, goodSetPercentage));
d599d913 504 }
505
506 // free used memory for canvas
507 delete c1; c1=0;
508 delete c2; c2=0;
509 delete c3; c3=0;
510
511 // generating output filename only if not previously specified using SetTZeroFile
1d834a1e 512
13242232 513 /*const*/ Int_t kSize = 70+fHeadersFile.Length()+1;
1d834a1e 514 char outFileName[kSize];
de40f9c1 515 strncpy(outFileName,"ht010tr120ps",kSize); // global time resolution has to be converted from Int_t to char
d599d913 516 // in order to have in the output filename this parameter
de40f9c1 517 strncat(outFileName,fHeadersFile,kSize);
d599d913 518
519 if(fT0File.IsNull()) fT0File=outFileName;
520
521 TFile* houtfile = new TFile(fT0File,"recreate");
522 houtfile->cd();
523 htzerobest->Write(0,TObject::kOverwrite);
524 hchibest->Write(0,TObject::kOverwrite);
525 hchibestconflevel->Write(0,TObject::kOverwrite);
526 houtfile->Close();
527
528
529 if(strstr(option,"tim") || strstr(option,"all")){
530 gBenchmark->Stop("TOFT0");
0e46b9ae 531 AliInfo("AliTOFT0:");
532 /*
d599d913 533 cout << " took " << gBenchmark->GetCpuTime("TOFT0") << " seconds in order to calculate T0 "
0e46b9ae 534 << gBenchmark->GetCpuTime("TOFT0")/fNevents << " seconds per event " << endl ;
535 */
536 gBenchmark->Print("TOFT0");
d599d913 537 }
538}
539
540//__________________________________________________________________
7aeeaf38 541void AliTOFT0::SetTZeroFile(char * file )
542{
543 //
6a4e212e 544 // Set T0 file name
7aeeaf38 545 //
546 printf("Destination file : %s \n", file) ;
d599d913 547 fT0File=file;
7aeeaf38 548
d599d913 549}
7aeeaf38 550
d599d913 551//__________________________________________________________________
5c016a7b 552void AliTOFT0::Print(Option_t* /*option*/)const
d599d913 553{
7aeeaf38 554 //
6a4e212e 555 // Print class content
7aeeaf38 556 //
557 printf("------------------- %s -------------\n", GetName()) ;
d599d913 558 if(!fT0File.IsNull())
7aeeaf38 559 printf(" Writing T0 Distribution to file %s \n",(char*) fT0File.Data());
560
d599d913 561}
562
563//__________________________________________________________________
564Bool_t AliTOFT0::operator==( AliTOFT0 const &tzero )const
565{
7aeeaf38 566 //
567 // Equal operator
d599d913 568 //
569
a3b608e8 570 if( (fTimeResolution==tzero.fTimeResolution)&&
571 (fLowerMomBound==tzero.fLowerMomBound)&&
572 (fUpperMomBound==tzero.fUpperMomBound))
d599d913 573 return kTRUE ;
574 else
575 return kFALSE ;
576}