1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 *
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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 **************************************************************************/
18 //_________________________________________________________________________
20 //////////////////////////////////////////////////////////////////////////////
21 // Class performs digitization of Summable digits from simulated data
23 // In addition it performs mixing of summable digits from different events.
25 // For each event two branches are created in TreeD:
26 // "EMCAL" - list of digits
27 // "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
29 // Note, that one cset title for new digits branch, and repeat digitization with
30 // another set of parameters.
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
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
51 ////////////////////////////////////////////////////////////////////////////////////
53 //*-- Author: Sahal Yacoob (LBL)
54 // based on : AliEMCALDigitizer
56 // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
57 // of new IO (à la PHOS)
58 // November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry
59 //_________________________________________________________________________________
61 // --- ROOT system ---
65 #include <TBenchmark.h>
67 #include <TObjectTable.h>
71 // --- AliRoot header files ---
74 #include "AliRunDigitizer.h"
75 #include "AliRunLoader.h"
76 #include "AliCDBManager.h"
77 #include "AliCDBEntry.h"
78 #include "AliEMCALDigit.h"
80 #include "AliEMCALLoader.h"
81 #include "AliEMCALDigitizer.h"
82 #include "AliEMCALSDigitizer.h"
83 #include "AliEMCALGeometry.h"
84 #include "AliEMCALTick.h"
85 #include "AliEMCALCalibData.h"
86 #include "AliEMCALSimParam.h"
88 ClassImp(AliEMCALDigitizer)
91 //____________________________________________________________________________
92 AliEMCALDigitizer::AliEMCALDigitizer()
93 : AliDigitizer("",""),
101 fMeanPhotonElectron(0),
102 // fPedestal(0), //Not used, remove?
103 // fSlope(0), //Not used, remove?
106 // fTimeThreshold(0), //Not used, remove?
107 // fTimeSignalLength(0), //Not used, remove?
111 fEventFolderName(""),
118 fManager = 0 ; // We work in the standalone mode
121 //____________________________________________________________________________
122 AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName)
123 : AliDigitizer("EMCAL"+AliConfig::Instance()->GetDigitizerTaskName(), alirunFileName),
124 fDefaultInit(kFALSE),
131 fMeanPhotonElectron(0),
132 // fPedestal(0),//Not used, remove?
133 // fSlope(0), //Not used, remove?
136 // fTimeThreshold(0), //Not used, remove?
137 // fTimeSignalLength(0), //Not used, remove?
141 fEventFolderName(eventFolderName),
149 fManager = 0 ; // We work in the standalone mode
152 //____________________________________________________________________________
153 AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d)
154 : AliDigitizer(d.GetName(),d.GetTitle()),
155 fDefaultInit(d.fDefaultInit),
156 fDigitsInRun(d.fDigitsInRun),
159 fInputFileNames(d.fInputFileNames),
160 fEventNames(d.fEventNames),
161 fDigitThreshold(d.fDigitThreshold),
162 fMeanPhotonElectron(d.fMeanPhotonElectron),
163 // fPedestal(d.fPedestal), //Not used, remove?
164 // fSlope(d.fSlope), //Not used, remove?
165 fPinNoise(d.fPinNoise),
166 fTimeResolution(d.fTimeResolution),
167 // fTimeThreshold(d.fTimeThreshold), //Not used, remove?
168 // fTimeSignalLength(d.fTimeSignalLength), //Not used, remove?
169 fADCchannelEC(d.fADCchannelEC),
170 fADCpedestalEC(d.fADCpedestalEC),
172 fEventFolderName(d.fEventFolderName),
173 fFirstEvent(d.fFirstEvent),
174 fLastEvent(d.fLastEvent),
175 fCalibData(d.fCalibData)
180 //____________________________________________________________________________
181 AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * rd)
182 : AliDigitizer(rd,"EMCAL"+AliConfig::Instance()->GetDigitizerTaskName()),
183 fDefaultInit(kFALSE),
190 fMeanPhotonElectron(0),
191 // fPedestal(0), //Not used, remove?
192 // fSlope(0.), //Not used, remove?
195 // fTimeThreshold(0), //Not used, remove?
196 // fTimeSignalLength(0), //Not used, remove?
205 // ctor Init() is called by RunDigitizer
207 fEventFolderName = fManager->GetInputFolderName(0) ;
208 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
212 //____________________________________________________________________________
213 AliEMCALDigitizer::~AliEMCALDigitizer()
216 if (AliRunLoader::Instance()) {
217 AliLoader *emcalLoader=0;
218 if ((emcalLoader = AliRunLoader::Instance()->GetDetectorLoader("EMCAL")))
219 emcalLoader->CleanDigitizer();
222 AliDebug(1," no runloader present");
223 delete [] fInputFileNames ;
224 delete [] fEventNames ;
228 //____________________________________________________________________________
229 void AliEMCALDigitizer::Digitize(Int_t event)
232 // Makes the digitization of the collected summable digits
233 // for this it first creates the array of all EMCAL modules
234 // filled with noise and after that adds contributions from
235 // SDigits. This design helps to avoid scanning over the
236 // list of digits to add contribution of any new SDigit.
239 // Note that SDigit energy info is stored as an amplitude, so we
240 // must call the Calibrate() method of the SDigitizer to convert it
241 // back to an energy in GeV before adding it to the Digit
243 static int nEMC=0; //max number of digits possible
245 AliRunLoader *rl = AliRunLoader::Instance();
246 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
247 Int_t readEvent = event ;
248 // fManager is data member from AliDigitizer
250 readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ;
251 AliDebug(1,Form("Adding event %d from input stream 0 %s %s",
252 readEvent, GetTitle(), fEventFolderName.Data())) ;
253 rl->GetEvent(readEvent);
255 TClonesArray * digits = emcalLoader->Digits() ;
256 digits->Delete() ; //correct way to clear array when memory is
257 //allocated by objects stored in array
260 AliEMCALGeometry *geom = 0;
261 if (rl->GetAliRun()) {
262 AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL");
263 geom = emcal->GetGeometry();
266 AliFatal("Could not get AliRun from runLoader");
268 nEMC = geom->GetNCells();
269 AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName()));
273 digits->Expand(nEMC) ;
275 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
276 if ( !emcalLoader->SDigitizer() )
277 emcalLoader->LoadSDigitizer();
278 AliEMCALSDigitizer * sDigitizer = dynamic_cast<AliEMCALSDigitizer*>(emcalLoader->SDigitizer());
281 Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
283 //take all the inputs to add together and load the SDigits
284 TObjArray * sdigArray = new TObjArray(fInput) ;
285 sdigArray->AddAt(emcalLoader->SDigits(), 0) ;
288 for(i = 1 ; i < fInput ; i++){
289 TString tempo(fEventNames[i]) ;
292 AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ;
295 rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ;
298 readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
299 Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
301 rl2->GetEvent(readEvent);
302 AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL"));
303 sdigArray->AddAt(emcalLoader2->SDigits(), i) ;
306 //Find the first tower with signal
307 Int_t nextSig = nEMC + 1 ;
308 TClonesArray * sdigits ;
309 for(i = 0 ; i < fInput ; i++){
310 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
311 if ( !sdigits->GetEntriesFast() )
313 Int_t curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(0))->GetId() ;
314 if(curNext < nextSig)
316 AliDebug(1,Form("input %i : #sdigits %i \n",
317 i, sdigits->GetEntriesFast()));
319 AliDebug(1,Form("FIRST tower with signal %i \n", nextSig));
321 TArrayI index(fInput) ;
322 index.Reset() ; //Set all indexes to zero
324 AliEMCALDigit * digit ;
325 AliEMCALDigit * curSDigit ;
327 // TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
329 //Put Noise contribution
330 for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC
332 // amplitude set to zero, noise will be added later
333 new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0, TimeOfNoise() ); // absID-1->absID
334 //look if we have to add signal?
335 digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID
338 //Add SDigits from all inputs
340 //Int_t contrib = 0 ;
342 //Follow PHOS and comment out this timing model til a better one
343 //can be developed - JLK 28-Apr-2008
345 //Float_t a = digit->GetAmp() ;
346 //Float_t b = TMath::Abs( a /fTimeSignalLength) ;
347 //Mark the beginning of the signal
348 //new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
349 //Mark the end of the signal
350 //new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
352 // Calculate time as time of the largest digit
353 Float_t time = digit->GetTime() ;
354 Float_t aTime= digit->GetAmp() ;
357 for(i = 0; i< fInput ; i++){ //loop over (possible) merge sources
358 if(dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
359 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
362 //May be several digits will contribute from the same input
363 while(curSDigit && (curSDigit->GetId() == absID)){
364 //Shift primary to separate primaries belonging different inputs
365 Int_t primaryoffset ;
367 primaryoffset = fManager->GetMask(i) ;
370 curSDigit->ShiftPrimary(primaryoffset) ;
372 //Remove old timing model - JLK 28-April-2008
373 //a = curSDigit->GetAmp() ;
374 //b = a /fTimeSignalLength ;
375 //new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
376 //new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
377 if(curSDigit->GetAmp()>aTime) {
378 aTime = curSDigit->GetAmp();
379 time = curSDigit->GetTime();
382 *digit = *digit + *curSDigit ; //adds amplitudes of each digit
385 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
386 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
391 //Here we convert the summed amplitude to an energy in GeV
392 energy = sDigitizer->Calibrate(digit->GetAmp()) ; // GeV
393 // add fluctuations for photo-electron creation
394 energy *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
396 //calculate and set time
397 //New timing model needed - JLK 28-April-2008
398 //Float_t time = FrontEdgeTime(ticks) ;
399 digit->SetTime(time) ;
401 //Find next signal module
403 for(i = 0 ; i < fInput ; i++){
404 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
405 Int_t curNext = nextSig ;
406 if(sdigits->GetEntriesFast() > index[i] ){
407 curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]))->GetId() ;
409 if(curNext < nextSig) nextSig = curNext ;
413 energy += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
415 //Now digitize the energy according to the sDigitizer method,
416 //which merely converts the energy to an integer. Later we will
417 //check that the stored value matches our allowed dynamic ranges
418 digit->SetAmp(sDigitizer->Digitize(energy)) ;
419 AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n",
420 absID, energy, nextSig));
421 } // for(absID = 0; absID < nEMC; absID++)
426 //JLK is it better to call Clear() here?
427 delete sdigArray ; //We should not delete its contents
429 //remove digits below thresholds
430 for(i = 0 ; i < nEMC ; i++){
431 digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
432 Float_t threshold = fDigitThreshold ; //this is in GeV
433 //need to calibrate digit amplitude to energy in GeV for comparison
434 if(sDigitizer->Calibrate( digit->GetAmp() ) < threshold)
435 digits->RemoveAt(i) ;
437 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
442 Int_t ndigits = digits->GetEntriesFast() ;
445 //After we have done the summing and digitizing to create the
446 //digits, now we want to calibrate the resulting amplitude to match
447 //the dynamic range of our real data.
449 for (i = 0 ; i < ndigits ; i++) {
450 digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
451 digit->SetIndexInList(i) ;
452 energy = sDigitizer->Calibrate(digit->GetAmp()) ;
453 digit->SetAmp(DigitizeEnergy(energy, digit->GetId()) ) ;
458 // //_____________________________________________________________________
459 Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t AbsId)
462 // Returns digitized value of the energy in a cell absId
463 // using the calibration constants stored in the OCDB
464 // or default values if no CalibData object is found.
465 // This effectively converts everything to match the dynamic range
466 // of the real data we will collect
469 const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
472 AliFatal("Did not get geometry from EMCALLoader");
480 Int_t channel = -999;
482 Bool_t bCell = geom->GetCellIndex(AbsId, iSupMod, nModule, nIphi, nIeta) ;
484 Error("DigitizeEnergy","Wrong cell id number : AbsId %i ", AbsId) ;
485 geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
488 fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi);
489 fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi);
492 channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalEC)/fADCchannelEC )) ;
494 if(channel > fNADCEC )
500 //____________________________________________________________________________
501 void AliEMCALDigitizer::Exec(Option_t *option)
503 // Steering method to process digitization for events
504 // in the range from fFirstEvent to fLastEvent.
505 // This range is optionally set by SetEventRange().
506 // if fLastEvent=-1, then process events until the end.
507 // by default fLastEvent = fFirstEvent (process only one event)
509 if (!fInit) { // to prevent overwrite existing file
510 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
514 if (strstr(option,"print")) {
520 if(strstr(option,"tim"))
521 gBenchmark->Start("EMCALDigitizer");
523 AliRunLoader *rl = AliRunLoader::Instance();
524 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
526 // Post Digitizer to the white board
527 emcalLoader->PostDigitizer(this) ;
529 if (fLastEvent == -1) {
530 fLastEvent = rl->GetNumberOfEvents() - 1 ;
533 fLastEvent = fFirstEvent ; // what is this ??
535 Int_t nEvents = fLastEvent - fFirstEvent + 1;
538 rl->LoadSDigits("EMCAL");
539 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
541 rl->GetEvent(ievent);
543 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
547 if(strstr(option,"deb"))
549 if(strstr(option,"table")) gObjectTable->Print();
551 //increment the total number of Digits per run
552 fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ;
555 emcalLoader->CleanDigitizer() ;
557 if(strstr(option,"tim")){
558 gBenchmark->Stop("EMCALDigitizer");
559 AliInfo(Form("Exec: took %f seconds for Digitizing %f seconds per event",
560 gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents )) ;
564 //____________________________________________________________________________
565 //Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
567 // // Returns the shortest time among all time ticks
569 // ticks->Sort() ; //Sort in accordance with times of ticks
571 // AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
572 // Float_t time = ctick->CrossingTime(fTimeThreshold) ;
574 // AliEMCALTick * t ;
575 // while((t=(AliEMCALTick*) it.Next())){
576 // if(t->GetTime() < time) //This tick starts before crossing
581 // time = ctick->CrossingTime(fTimeThreshold) ;
587 //____________________________________________________________________________
588 Bool_t AliEMCALDigitizer::Init()
590 // Makes all memory allocations
592 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
594 if ( emcalLoader == 0 ) {
595 Fatal("Init", "Could not obtain the AliEMCALLoader");
600 fLastEvent = fFirstEvent ;
603 fInput = fManager->GetNinputs() ;
607 fInputFileNames = new TString[fInput] ;
608 fEventNames = new TString[fInput] ;
609 fInputFileNames[0] = GetTitle() ;
610 fEventNames[0] = fEventFolderName.Data() ;
612 for (index = 1 ; index < fInput ; index++) {
613 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
614 TString tempo = fManager->GetInputFolderName(index) ;
615 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
618 //to prevent cleaning of this object while GetEvent is called
619 emcalLoader->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
621 //Calibration instance
622 fCalibData = emcalLoader->CalibData();
626 //____________________________________________________________________________
627 void AliEMCALDigitizer::InitParameters()
629 // Parameter initialization for digitizer
631 fMeanPhotonElectron = AliEMCALSimParam::GetInstance()->GetMeanPhotonElectron();//4400; // electrons per GeV
632 fPinNoise = AliEMCALSimParam::GetInstance()->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data
633 if (fPinNoise < 0.0001 )
634 Warning("InitParameters", "No noise added\n") ;
635 fDigitThreshold = AliEMCALSimParam::GetInstance()->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma
636 fTimeResolution = AliEMCALSimParam::GetInstance()->GetTimeResolution(); //0.6e-9 ; // 600 psc
638 // These defaults are normally not used.
639 // Values are read from calibration database instead
640 fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV
641 fADCpedestalEC = 0.0 ; // GeV
643 fNADCEC = AliEMCALSimParam::GetInstance()->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536
645 AliDebug(2,Form("Mean Photon Electron %d, Noise %f, E Threshold %f,Time Resolution %g,NADCEC %d",
646 fMeanPhotonElectron,fPinNoise,fDigitThreshold,fTimeResolution,fNADCEC));
648 // Not used anymore, remove?
649 // fTimeSignalLength = 1.0e-9 ;
650 // fTimeThreshold = 0.001*10000000 ; // Means 1 MeV in terms of SDigits amplitude ??
654 //__________________________________________________________________
655 void AliEMCALDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
657 // Allows to produce digits by superimposing background and signal event.
658 // It is assumed, that headers file with SIGNAL events is opened in
660 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
661 // Thus we avoid writing (changing) huge and expensive
662 // backgound files: all output will be writen into SIGNAL, i.e.
663 // opened in constructor file.
665 // One can open as many files to mix with as one needs.
666 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
669 if( strcmp(GetName(), "") == 0 )
673 Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
676 // looking for file which contains AliRun
677 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
678 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
681 // looking for the file which contains SDigits
682 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
683 TString fileName( emcalLoader->GetSDigitsFileName() ) ;
684 if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
685 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
686 if ( (gSystem->AccessPathName(fileName)) ) {
687 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
690 // need to increase the arrays
691 // MvL: This code only works when fInput == 1, I think.
692 TString tempo = fInputFileNames[fInput-1] ;
693 delete [] fInputFileNames ;
694 fInputFileNames = new TString[fInput+1] ;
695 fInputFileNames[fInput-1] = tempo ;
697 tempo = fEventNames[fInput-1] ;
698 delete [] fEventNames ;
699 fEventNames = new TString[fInput+1] ;
700 fEventNames[fInput-1] = tempo ;
702 fInputFileNames[fInput] = alirunFileName ;
703 fEventNames[fInput] = eventFolderName ;
707 //__________________________________________________________________
708 void AliEMCALDigitizer::Print1(Option_t * option)
709 { // 19-nov-04 - just for convinience
714 //__________________________________________________________________
715 void AliEMCALDigitizer::Print(Option_t*)const
717 // Print Digitizer's parameters
718 printf("Print: \n------------------- %s -------------", GetName() ) ;
719 if( strcmp(fEventFolderName.Data(), "") != 0 ){
720 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
724 nStreams = GetNInputStreams() ;
732 for (index = 0 ; index < nStreams ; index++) {
733 TString tempo(fEventNames[index]) ;
735 if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0)
736 rl = AliRunLoader::Open(fInputFileNames[index], tempo) ;
737 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
738 TString fileName( emcalLoader->GetSDigitsFileName() ) ;
739 if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
740 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
741 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
744 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
746 printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ;
748 printf("\nWith following parameters:\n") ;
750 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise) ;
751 printf(" Threshold in EMC (fDigitThreshold) = %f\n", fDigitThreshold) ;
752 printf("---------------------------------------------------\n") ;
755 printf("Print: AliEMCALDigitizer not initialized") ;
758 //__________________________________________________________________
759 void AliEMCALDigitizer::PrintDigits(Option_t * option)
761 //utility method for printing digit information
763 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
764 TClonesArray * digits = emcalLoader->Digits() ;
765 TClonesArray * sdigits = emcalLoader->SDigits() ;
767 printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ;
768 printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber());
770 if(strstr(option,"all")){
772 AliEMCALDigit * digit;
773 printf("\nEMC digits (with primaries):\n") ;
774 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
776 for (index = 0 ; index < digits->GetEntries() ; index++) {
777 digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
778 printf("\n%6d %8d %6.5e %4d %2d : ",
779 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
781 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
782 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
789 //__________________________________________________________________
790 Float_t AliEMCALDigitizer::TimeOfNoise(void)
792 // Calculates the time signal generated by noise
793 //PH Info("TimeOfNoise", "Change me") ;
794 return gRandom->Rndm() * 1.28E-5;
797 //__________________________________________________________________
798 void AliEMCALDigitizer::Unload()
800 // Unloads the SDigits and Digits
804 for(i = 1 ; i < fInput ; i++){
805 TString tempo(fEventNames[i]) ;
807 if ((rl = AliRunLoader::GetRunLoader(tempo)))
808 rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ;
810 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
811 emcalLoader->UnloadDigits() ;
814 //_________________________________________________________________________________________
815 void AliEMCALDigitizer::WriteDigits()
818 // Makes TreeD in the output file.
819 // Check if branch already exists:
820 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
821 // already existing branches.
822 // else creates branch with Digits, named "EMCAL", title "...",
823 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
824 // and names of files, from which digits are made.
826 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
828 const TClonesArray * digits = emcalLoader->Digits() ;
829 TTree * treeD = emcalLoader->TreeD();
831 emcalLoader->MakeDigitsContainer();
832 treeD = emcalLoader->TreeD();
835 // -- create Digits branch
836 Int_t bufferSize = 32000 ;
837 TBranch * digitsBranch = 0;
838 if ((digitsBranch = treeD->GetBranch("EMCAL"))) {
839 digitsBranch->SetAddress(&digits);
840 AliWarning("Digits Branch already exists. Not all digits will be visible");
843 treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize);
844 //digitsBranch->SetTitle(fEventFolderName);
847 emcalLoader->WriteDigits("OVERWRITE");
848 emcalLoader->WriteDigitizer("OVERWRITE");
854 //__________________________________________________________________
855 void AliEMCALDigitizer::Browse(TBrowser* b)