Added the SetSplitFile method that allows to divert the Digits in a file different...
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigitizer.cxx
CommitLineData
61e0abb5 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/* $Id$ */
17
18//_________________________________________________________________________
ffa6d63b 19//
61e0abb5 20//////////////////////////////////////////////////////////////////////////////
ffa6d63b 21// Class performs digitization of Summable digits
22//
61e0abb5 23// In addition it performs mixing of summable digits from different events.
24//
25// For each event two branches are created in TreeD:
26// "EMCAL" - list of digits
27// "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
28//
29// Note, that one cset title for new digits branch, and repeat digitization with
30// another set of parameters.
31//
32// Examples of use:
33// root[0] AliEMCALDigitizer * d = new AliEMCALDigitizer() ;
34// root[1] d->ExecuteTask()
35// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
36// //Digitizes SDigitis in all events found in file galice.root
37//
38// root[2] AliEMCALDigitizer * d1 = new AliEMCALDigitizer("galice1.root") ;
39// // Will read sdigits from galice1.root
40// root[3] d1->MixWith("galice2.root")
41// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
42// // Reads another portion of sdigits from galice2.root
43// root[3] d1->MixWith("galice3.root")
44// // Reads another portion of sdigits from galice3.root
45// root[4] d->ExecuteTask("deb timing")
46// // Reads SDigits from files galice1.root, galice2.root ....
47// // mixes them and stores produced Digits in file galice1.root
48// // deb - prints number of produced digits
49// // deb all - prints list of produced digits
50// // timing - prints time used for digitization
ffa6d63b 51////////////////////////////////////////////////////////////////////////////////////
61e0abb5 52//
ffa6d63b 53//*-- Author: Sahal Yacoob (LBL)
814ad4bf 54// based on : AliEMCALDigitizer
ffa6d63b 55//_________________________________________________________________________________
61e0abb5 56
57// --- ROOT system ---
58#include "TFile.h"
59#include "TTree.h"
60#include "TSystem.h"
61#include "TROOT.h"
62#include "TFolder.h"
63#include "TObjString.h"
64#include "TBenchmark.h"
65// --- Standard library ---
66#include <iomanip.h>
67
68// --- AliRoot header files ---
69
70#include "AliRun.h"
71#include "AliEMCALDigit.h"
72#include "AliEMCALHit.h"
814ad4bf 73#include "AliEMCALTick.h"
61e0abb5 74#include "AliEMCALv1.h"
75#include "AliEMCALDigitizer.h"
76#include "AliEMCALSDigitizer.h"
77#include "AliEMCALGeometry.h"
814ad4bf 78#include "AliEMCALGetter.h"
79#include "AliRunDigitizer.h"
61e0abb5 80ClassImp(AliEMCALDigitizer)
81
82
83//____________________________________________________________________________
814ad4bf 84 AliEMCALDigitizer::AliEMCALDigitizer()
61e0abb5 85{
86 // ctor
87
88 fSDigitizer = 0 ;
556fa06b 89 fNinputs = 0 ;
556fa06b 90 fPinNoise = 0.0 ;
556fa06b 91 fTowerDigitThreshold = 0.0 ;
556fa06b 92 fTimeResolution = 0. ;
556fa06b 93 fTimeSignalLength = 0. ;
556fa06b 94 fPreShowerDigitThreshold = 0. ;
556fa06b 95 fADCchannelTower = 0.0; // width of one ADC channel in GeV
556fa06b 96 fADCpedestalTower = 0. ; // pedestal of ADC
556fa06b 97 fNADCTower = 0; // number of channels in Tower ADC
98
556fa06b 99 fADCchannelPreSho = 0.0; // width of one ADC channel in Pre Shower
556fa06b 100 fADCpedestalPreSho = 0.0 ; // pedestal of ADC
556fa06b 101 fNADCPreSho = 0; // number of channels in Pre Shower ADC
556fa06b 102 fTimeThreshold = 0.0; //Means 1 MeV in terms of SDigits amplitude
814ad4bf 103 fManager = 0 ;
61e0abb5 104
61e0abb5 105
61e0abb5 106
61e0abb5 107}
61e0abb5 108//____________________________________________________________________________
814ad4bf 109Bool_t AliEMCALDigitizer::Init()
61e0abb5 110{
814ad4bf 111 // Makes all memory allocations
112
113 fSDigitizer = 0 ;
114 fNinputs = 1 ;
d968cee0 115 fPinNoise = 0.00001 ;
116 fTowerDigitThreshold = 0.001 ;
814ad4bf 117 fTimeResolution = 0.5e-9 ;
118 fTimeSignalLength = 1.0e-9 ;
d968cee0 119 fPreShowerDigitThreshold = fTowerDigitThreshold/25. ;
814ad4bf 120 fInitialized = kFALSE ;
b66c1acf 121 fADCchannelTower = 0.000220; // width of one ADC channel in GeV
d968cee0 122 fADCpedestalTower = 0.005 ; // GeV
814ad4bf 123 fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
124
556fa06b 125 fADCchannelPreSho = 0.0000300; // width of one ADC channel in Pre Shower
814ad4bf 126 fADCpedestalPreSho = 0.005 ; //
d968cee0 127 fNADCPreSho = (Int_t) TMath::Power(2,12); // number of channels in Pre ShowerADC
814ad4bf 128
129 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
130
131
132
54b82aa4 133 if(fManager)
814ad4bf 134 SetTitle("aliroot") ;
135 else if (strcmp(GetTitle(),"")==0)
54b82aa4 136 SetTitle("galice.root") ;
137
814ad4bf 138 if( strcmp(GetName(), "") == 0 )
139 SetName("Default") ;
61e0abb5 140
814ad4bf 141 AliEMCALGetter * gime = AliEMCALGetter::GetInstance(GetTitle(), GetName(), "update") ;
142 if ( gime == 0 ) {
143 cerr << "ERROR: AliEMCALDigitizer::Init -> Could not obtain the Getter object !" << endl ;
144 return kFALSE;
145 }
61e0abb5 146
814ad4bf 147 //const AliEMCALGeometry * geom = gime->EMCALGeometry() ;
148 //fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
61e0abb5 149
814ad4bf 150 // Post Digits to the white board
151 gime->PostDigits(GetName() ) ;
61e0abb5 152
814ad4bf 153 // Post Digitizer to the white board
154 gime->PostDigitizer(this) ;
61e0abb5 155
814ad4bf 156 //Mark that we will use current header file
157 if(!fManager){
158 gime->PostSDigits(GetName(),GetTitle()) ;
159 gime->PostSDigitizer(GetName(),GetTitle()) ;
160 }
161 return kTRUE ;
61e0abb5 162
814ad4bf 163
61e0abb5 164
814ad4bf 165}
166
167//____________________________________________________________________________
168AliEMCALDigitizer::AliEMCALDigitizer(const char *headerFile,const char *name)
169{
54b82aa4 170 SetName(name) ;
814ad4bf 171 SetTitle(headerFile) ;
172 fManager = 0 ; // We work in the standalong mode
173 Init() ;
61e0abb5 174
814ad4bf 175
61e0abb5 176
177}
814ad4bf 178//____________________________________________________________________________
179AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
180{
181 // ctor
182 SetName(""); //Will call init in the digitizing
183 SetTitle("aliroot") ;
184}
61e0abb5 185
186//____________________________________________________________________________
187 AliEMCALDigitizer::~AliEMCALDigitizer()
188{
189 // dtor
190
61e0abb5 191}
192//____________________________________________________________________________
193void AliEMCALDigitizer::Reset() {
194 //sets current event number to the first simulated event
814ad4bf 195if( strcmp(GetName(), "") == 0 )
196 Init() ;
61e0abb5 197
814ad4bf 198 // Int_t inputs ;
199 // for(inputs = 0; inputs < fNinputs ;inputs++)
200 // fIevent->AddAt(-1, inputs ) ;
61e0abb5 201
202}
203
204//____________________________________________________________________________
814ad4bf 205void AliEMCALDigitizer::Digitize(const Int_t event) {
61e0abb5 206
207 // Makes the digitization of the collected summable digits
208 // for this it first creates the array of all EMCAL modules
209 // filled with noise (different for EMC, CPV and PPSD) and
210 // after that adds contributions from SDigits. This design
211 // helps to avoid scanning over the list of digits to add
212 // contribution of any new SDigit.
213
814ad4bf 214 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
215 TClonesArray * digits = gime->Digits(GetName()) ;
216
217 digits->Clear() ;
61e0abb5 218
814ad4bf 219 const AliEMCALGeometry *geom = gime->EMCALGeometry() ;
61e0abb5 220
61e0abb5 221
222 //Making digits with noise, first EMC
ffa6d63b 223 Int_t nEMC = 2*geom->GetNPhi()*geom->GetNZ();
61e0abb5 224 Int_t absID ;
225 TString name = geom->GetName() ;
61e0abb5 226
814ad4bf 227 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
228 const AliEMCALSDigitizer * sDigitizer = gime->SDigitizer(GetName());
229 if ( !sDigitizer) {
230 cerr << "ERROR: AliEMCALDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
231 abort() ;
61e0abb5 232 }
814ad4bf 233// loop through the sdigits posted to the White Board and add them to the noise
234 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
235 TIter next(folderslist) ;
236 TFolder * folder = 0 ;
237 TClonesArray * sdigits = 0 ;
238 Int_t input = 0 ;
239 TObjArray * sdigArray = new TObjArray(2) ;
240 while ( (folder = (TFolder*)next()) )
241 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
54b82aa4 242 TString fileName(folder->GetName()) ;
243 fileName.ReplaceAll("_","/") ;
814ad4bf 244 cout << "INFO: AliEMCALDigitizer::Digitize -> Adding SDigits "
54b82aa4 245 << GetName() << " from " << fileName << endl ;
814ad4bf 246 sdigArray->AddAt(sdigits, input) ;
247 input++ ;
248 }
61e0abb5 249
d968cee0 250 //Find the first tower with signal
814ad4bf 251 Int_t nextSig = 200000 ;
252 Int_t i;
253 for(i=0; i<input; i++){
254 sdigits = (TClonesArray *)sdigArray->At(i) ;
255 if ( !sdigits->GetEntriesFast() )
256 continue ;
257 Int_t curNext = ((AliEMCALDigit *)sdigits->At(0))->GetId() ;
258 if(curNext < nextSig)
259 nextSig = curNext ;
260 }
61e0abb5 261
814ad4bf 262 TArrayI index(input) ;
263 index.Reset() ; //Set all indexes to zero
61e0abb5 264
814ad4bf 265 AliEMCALDigit * digit = 0 ;
266 AliEMCALDigit * curSDigit = 0 ;
ffa6d63b 267
814ad4bf 268 TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
ffa6d63b 269
814ad4bf 270 //Put Noise contribution
271 for(absID = 1; absID <= nEMC; absID++){
d968cee0 272 Float_t noise = gRandom->Gaus(0., fPinNoise);
814ad4bf 273 new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
274 //look if we have to add signal?
275 if(absID==nextSig){
276 //Add SDigits from all inputs
277 digit = (AliEMCALDigit *) digits->At(absID-1) ;
278
279 ticks->Clear() ;
280 Int_t contrib = 0 ;
281 Float_t a = digit->GetAmp() ;
282 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
283 //Mark the beginnign of the signal
284 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
285 //Mark the end of the ignal
286 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
287
288 // loop over input
289
290 for(i = 0; i< input ; i++){ //loop over (possible) merge sources
291 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
292 curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
293 else
294 curSDigit = 0 ;
295 //May be several digits will contribute from the same input
296 while(curSDigit && curSDigit->GetId() == absID){
297 //Shift primary to separate primaries belonging different inputs
298 Int_t primaryoffset ;
299 if(fManager)
300 primaryoffset = fManager->GetMask(i) ;
301 else
302 primaryoffset = i ;
303 curSDigit->ShiftPrimary(primaryoffset) ;
304
305 a = curSDigit->GetAmp() ;
306 b = a /fTimeSignalLength ;
307 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
308 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
309
310 *digit = *digit + *curSDigit ; //add energies
311
312 index[i]++ ;
313 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
314 curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
315 else
316 curSDigit = 0 ;
317 }
318 }
ffa6d63b 319
814ad4bf 320//calculate and set time
321 Float_t time = FrontEdgeTime(ticks) ;
322 digit->SetTime(time) ;
323
324 //Find next signal module
325 nextSig = 200000 ;
326 for(i=0; i<input; i++){
327 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
328 Int_t curNext = nextSig ;
329 if(sdigits->GetEntriesFast() > index[i] ){
330 curNext = ((AliEMCALDigit *) sdigits->At(index[i]))->GetId() ;
331
332 }
333 if(curNext < nextSig) nextSig = curNext ;
334 }
335 }
336 }
337
338 ticks->Delete() ;
339 delete ticks ;
61e0abb5 340
61e0abb5 341
61e0abb5 342
61e0abb5 343
814ad4bf 344 //remove digits below thresholds
345 for(absID = 0; absID < nEMC/2 ; absID++){
d968cee0 346 if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fTowerDigitThreshold)
814ad4bf 347 digits->RemoveAt(absID) ;
348 else
349 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
350 }
61e0abb5 351
814ad4bf 352 for(absID = nEMC/2; absID < nEMC ; absID++){
353 if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fPreShowerDigitThreshold)
354 digits->RemoveAt(absID) ;
355 else
356 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
61e0abb5 357 }
358
814ad4bf 359 digits->Compress() ;
61e0abb5 360
814ad4bf 361 Int_t ndigits = digits->GetEntriesFast() ;
61e0abb5 362
814ad4bf 363 digits->Expand(ndigits) ;
61e0abb5 364
61e0abb5 365
814ad4bf 366 //Set indexes in list of digits
367 //Int_t i ;
ec803232 368 for (i = 0 ; i < ndigits ; i++) {
814ad4bf 369 AliEMCALDigit * digit = (AliEMCALDigit *) digits->At(i) ;
370 digit->SetIndexInList(i) ;
371 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
372 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
61e0abb5 373 }
814ad4bf 374}
61e0abb5 375
814ad4bf 376//____________________________________________________________________________
61e0abb5 377
814ad4bf 378Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
379{
380 Int_t channel = -999;
381 Int_t nphi = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNPhi() ;
382 Int_t nz = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNZ() ;
383
ec803232 384 if(absId <= nphi*nz){ //digitize as tower
385 channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalTower)/fADCchannelTower )) ;
386 if(channel > fNADCTower )
387 channel = fNADCTower ;
388 } else {
389 channel = static_cast<Int_t>(TMath::Ceil( (energy + fADCpedestalPreSho)/fADCchannelPreSho )) ;
390 if(channel > fNADCPreSho )
391 channel = fNADCPreSho ;
392 }
814ad4bf 393
394 return channel ;
61e0abb5 395}
396
397//____________________________________________________________________________
398void AliEMCALDigitizer::Exec(Option_t *option) {
399 // Managing method
814ad4bf 400if(strcmp(GetName(), "") == 0 )
401 Init() ;
402
403 if (strstr(option,"print")) {
404 Print("");
405 return ;
406 }
407
61e0abb5 408 if(strstr(option,"tim"))
409 gBenchmark->Start("EMCALDigitizer");
410
814ad4bf 411 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
412
413 Int_t nevents ;
414
415 TTree * treeD ;
416
417 if(fManager){
418 treeD = fManager->GetTreeD() ;
419 nevents = 1 ; // Will process only one event
420 }
421 else {
422 gAlice->GetEvent(0) ;
423 nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
424 treeD=gAlice->TreeD() ;
425 }
426 if(treeD == 0 ){
427 cerr << " AliEMCALDigitizer :: Can not find TreeD " << endl ;
428 return ;
429 }
430
431 //Check, if this branch already exits
432 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
433 TIter next(lob) ;
434 TBranch * branch = 0 ;
435 Bool_t emcalfound = kFALSE, digitizerfound = kFALSE ;
61e0abb5 436
814ad4bf 437 while ( (branch = (TBranch*)next()) && (!emcalfound || !digitizerfound) ) {
438 if ( (strcmp(branch->GetName(), "EMCAL")==0) &&
439 (strcmp(branch->GetTitle(), GetName())==0) )
440 emcalfound = kTRUE ;
441
442 else if ( (strcmp(branch->GetName(), "AliEMCALDigitizer")==0) &&
443 (strcmp(branch->GetTitle(), GetName())==0) )
444 digitizerfound = kTRUE ;
445 }
446
447 if ( emcalfound ) {
448 cerr << "WARNING: AliEMCALDigitizer -> Digits branch with name " << GetName()
449 << " already exits" << endl ;
450 return ;
451 }
452 if ( digitizerfound ) {
453 cerr << "WARNING: AliEMCALDigitizer -> Digitizer branch with name " << GetName()
454 << " already exits" << endl ;
455 return ;
456 }
457
458 Int_t ievent ;
459
460 for(ievent = 0; ievent < nevents; ievent++){
461
462 if(fManager){
463 Int_t input ;
464 for(input = 0 ; input < fManager->GetNinputs(); input ++){
465 TTree * treeS = fManager->GetInputTreeS(input) ;
466 if(!treeS){
467 cerr << "AliEMCALDigitizer -> No Input " << endl ;
468 return ;
469 }
470 gime->ReadTreeS(treeS,input) ;
471 }
472 }
54b82aa4 473 else
474 gime->Event(ievent,"S") ;
61e0abb5 475
814ad4bf 476 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
61e0abb5 477
814ad4bf 478 WriteDigits(ievent) ;
61e0abb5 479
480 if(strstr(option,"deb"))
481 PrintDigits(option);
814ad4bf 482
483 //increment the total number of Digits per run
484 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
61e0abb5 485 }
814ad4bf 486
61e0abb5 487 if(strstr(option,"tim")){
488 gBenchmark->Stop("EMCALDigitizer");
489 cout << "AliEMCALDigitizer:" << endl ;
814ad4bf 490 cout << " took " << gBenchmark->GetCpuTime("EMCALDigitizer") << " seconds for Digitizing "
491 << gBenchmark->GetCpuTime("EMCALDigitizer")/nevents << " seconds per event " << endl ;
61e0abb5 492 cout << endl ;
493 }
494
495}
496
61e0abb5 497
61e0abb5 498
61e0abb5 499//__________________________________________________________________
814ad4bf 500void AliEMCALDigitizer::MixWith(char* headerFile){
61e0abb5 501 // Alows produce digits by superimposing background and signal event.
502 // It is assumed, that headers file with SIGNAL events is opened in
503 // constructor, and now we set the BACKGROUND event, with which we
504 // will mix. Thus we avoid writing (changing) huge and expencive
505 // backgound files: all output will be writen into SIGNAL, i.e.
506 // opened in constructor file.
507 //
508 // One can open as many files to mix with as one wants.
509
814ad4bf 510if( strcmp(GetName(), "") == 0 )
61e0abb5 511 Init() ;
814ad4bf 512
513 if(fManager){
514 cout << "Can not use this method under AliRunDigitizer " << endl ;
61e0abb5 515 return ;
814ad4bf 516 } // check if the specified SDigits do not already exist on the White Board:
517 // //Folders/RunMC/Event/Data/EMCAL/SDigits/headerFile/sdigitsname
518
519 TString path = "Folders/RunMC/Event/Data/EMCAL/SDigits" ;
520 path += headerFile ;
521 path += "/" ;
522 path += GetName() ;
523 if ( gROOT->FindObjectAny(path.Data()) ) {
524 cerr << "WARNING: AliEMCALDigitizer::MixWith -> Entry already exists, do not add" << endl ;
525 return;
61e0abb5 526 }
814ad4bf 527
528 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
529 gime->PostSDigits(GetName(),headerFile) ;
61e0abb5 530
814ad4bf 531 // check if the requested file is already open or exist and if SDigits Branch exist
532 TFile * file = (TFile*)gROOT->FindObject(headerFile);
533 if ( !file ) {
534 file = new TFile(headerFile, "READ") ;
535 if (!file) {
536 cerr << "ERROR: AliEMCALDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
537 return ;
538 }
539 }
61e0abb5 540
541}
814ad4bf 542
61e0abb5 543//__________________________________________________________________
544void AliEMCALDigitizer::Print(Option_t* option)const {
814ad4bf 545 if( strcmp(GetName(), "") != 0) {
61e0abb5 546
547 cout << "------------------- "<< GetName() << " -------------" << endl ;
548 cout << "Digitizing sDigits from file(s): " <<endl ;
61e0abb5 549
814ad4bf 550 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("Folders/RunMC/Event/Data/EMCAL/SDigits"))->GetListOfFolders() ;
551 TIter next(folderslist) ;
552 TFolder * folder = 0 ;
553 while ( (folder = (TFolder*)next()) )
554 if ( folder->FindObject(GetName()) )
555 {
556 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
557 cout << endl ;
558 cout << "Writing digits to " << GetTitle() << endl ;
559
560 cout << endl ;
561 cout << "With following parameters: " << endl ;
562 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
d968cee0 563 cout << " Threshold in EMC (fTowerDigitThreshold) = " << fTowerDigitThreshold << endl;
814ad4bf 564 cout << " Threshold in PreShower (fPreShowerDigitThreshold) = " << fPreShowerDigitThreshold << endl ; ;
565 cout << "---------------------------------------------------" << endl ;
566 }
567 else
568 cout << "AliEMCALDigitizer not initialized " << endl ;
569 }
61e0abb5 570}
814ad4bf 571
61e0abb5 572//__________________________________________________________________
573void AliEMCALDigitizer::PrintDigits(Option_t * option){
574
814ad4bf 575 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
576 TClonesArray * fDigits = gime->Digits() ;
577
61e0abb5 578 cout << "AliEMCALDigitiser:"<< endl ;
579 cout << " Number of entries in Digits list " << fDigits->GetEntriesFast() << endl ;
580 cout << endl ;
581 if(strstr(option,"all")){
582
583 //loop over digits
584 AliEMCALDigit * digit;
585 cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
586 Int_t index ;
587 for (index = 0 ; index < fDigits->GetEntries() ; index++) {
588 digit = (AliEMCALDigit * ) fDigits->At(index) ;
589 cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
590 << setw(6) << digit->GetIndexInList() << " "
591 << setw(5) << digit->GetNprimary() <<" ";
592
593 Int_t iprimary;
594 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
595 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
596 cout << endl;
597 }
598
599 }
600}
814ad4bf 601//_________________________________________________________________________________________
602void AliEMCALDigitizer::WriteDigits(Int_t event)
603{
61e0abb5 604
814ad4bf 605 // Makes TreeD in the output file.
606 // Check if branch already exists:
607 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
608 // already existing branches.
609 // else creates branch with Digits, named "EMCAL", title "...",
610 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
611 // and names of files, from which digits are made.
61e0abb5 612
814ad4bf 613 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
614 const TClonesArray * digits = gime->Digits(GetName()) ;
615 TTree * treeD ;
616
617 if(fManager)
618 treeD = fManager->GetTreeD() ;
619 else
620 treeD = gAlice->TreeD();
61e0abb5 621
814ad4bf 622 // create new branches
623 // -- generate file name if necessary
624 char * file =0;
625 if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
626 file = new char[strlen(gAlice->GetBaseFile())+20] ;
627 sprintf(file,"%s/EMCAL.Digits.root",gAlice->GetBaseFile()) ;
628 }
629
630 TDirectory *cwd = gDirectory;
631 // -- create Digits branch
632 Int_t bufferSize = 32000 ;
633 TBranch * digitsBranch = treeD->Branch("EMCAL",&digits,bufferSize);
634 digitsBranch->SetTitle(GetName());
635 if (file) {
636 digitsBranch->SetFile(file);
637 TIter next( digitsBranch->GetListOfBranches());
638 TBranch * sbr ;
639 while ((sbr=(TBranch*)next())) {
640 sbr->SetFile(file);
641 }
642 cwd->cd();
643 }
644
645 // -- Create Digitizer branch
646 Int_t splitlevel = 0 ;
647 AliEMCALDigitizer * d = gime->Digitizer(GetName()) ;
648 TBranch * digitizerBranch = treeD->Branch("AliEMCALDigitizer", "AliEMCALDigitizer", &d,bufferSize,splitlevel);
649 digitizerBranch->SetTitle(GetName());
650 if (file) {
651 digitizerBranch->SetFile(file);
652 TIter next( digitizerBranch->GetListOfBranches());
653 TBranch * sbr;
654 while ((sbr=(TBranch*)next())) {
655 sbr->SetFile(file);
656 }
657 cwd->cd();
658 }
659
ed99616a 660 treeD->Fill() ;
814ad4bf 661 treeD->Write(0,kOverwrite) ;
662
663}
664//____________________________________________________________________________
665Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
666{ //
667 ticks->Sort() ; //Sort in accordance with times of ticks
668 TIter it(ticks) ;
669 AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
670 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
671
672 AliEMCALTick * t ;
673 while((t=(AliEMCALTick*) it.Next())){
674 if(t->GetTime() < time) //This tick starts before crossing
675 *ctick+=*t ;
676 else
677 return time ;
678
679 time = ctick->CrossingTime(fTimeThreshold) ;
680 }
681 return time ;
682}
683//____________________________________________________________________________
684Float_t AliEMCALDigitizer::TimeOfNoise(void)
685{ // Calculates the time signal generated by noise
686 //to be rewritten, now returns just big number
687 return 1. ;
688
689}
690//____________________________________________________________________________
691void AliEMCALDigitizer::SetSDigitsBranch(const char* title)
692{
693 // we set title (comment) of the SDigits branch in the first! header file
694 if( strcmp(GetName(), "") == 0 )
695 Init() ;
61e0abb5 696
814ad4bf 697 AliEMCALGetter::GetInstance()->SDigits()->SetName(title) ;
61e0abb5 698}