SDigits has become a copy of hits and threshold to associate primary particles has...
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigitizer.cxx
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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 ;
89 fNinputs = 1 ;
d968cee0 90 fPinNoise = 0.00001 ;
91 fTowerDigitThreshold = 0.001 ;
814ad4bf 92 fTimeResolution = 0.5e-9 ;
93 fTimeSignalLength = 1.0e-9 ;
d968cee0 94 fPreShowerDigitThreshold = fTowerDigitThreshold/25. ;
95 fADCchannelTower = 0.003; // width of one ADC channel in GeV
814ad4bf 96 fADCpedestalTower = 0.005 ; // pedestal of ADC
97 fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
61e0abb5 98
d968cee0 99 fADCchannelPreSho = 0.0003 ; // width of one ADC channel in Pre Shower
814ad4bf 100 fADCpedestalPreSho = 0.005 ; // pedestal of ADC
d968cee0 101 fNADCPreSho = (Int_t) TMath::Power(2,12); // number of channels in Pre Shower ADC
814ad4bf 102 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
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 ;
d968cee0 121 fADCchannelTower = 0.003; // width of one ADC channel in GeV
122 fADCpedestalTower = 0.005 ; // GeV
814ad4bf 123 fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
124
d968cee0 125 fADCchannelPreSho = 0.0003 ; // 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
133if(fManager)
134 SetTitle("aliroot") ;
135 else if (strcmp(GetTitle(),"")==0)
136 SetTitle("galice.root") ;
137
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{
170 SetName(name) ;
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 }
233
814ad4bf 234// loop through the sdigits posted to the White Board and add them to the noise
235 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
236 TIter next(folderslist) ;
237 TFolder * folder = 0 ;
238 TClonesArray * sdigits = 0 ;
239 Int_t input = 0 ;
240 TObjArray * sdigArray = new TObjArray(2) ;
241 while ( (folder = (TFolder*)next()) )
242 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
243 cout << "INFO: AliEMCALDigitizer::Digitize -> Adding SDigits "
244 << GetName() << " from " << folder->GetName() << endl ;
245 sdigArray->AddAt(sdigits, input) ;
246 input++ ;
247 }
61e0abb5 248
d968cee0 249 //Find the first tower with signal
814ad4bf 250 Int_t nextSig = 200000 ;
251 Int_t i;
252 for(i=0; i<input; i++){
253 sdigits = (TClonesArray *)sdigArray->At(i) ;
254 if ( !sdigits->GetEntriesFast() )
255 continue ;
256 Int_t curNext = ((AliEMCALDigit *)sdigits->At(0))->GetId() ;
257 if(curNext < nextSig)
258 nextSig = curNext ;
259 }
61e0abb5 260
814ad4bf 261 TArrayI index(input) ;
262 index.Reset() ; //Set all indexes to zero
61e0abb5 263
814ad4bf 264 AliEMCALDigit * digit = 0 ;
265 AliEMCALDigit * curSDigit = 0 ;
ffa6d63b 266
814ad4bf 267 TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
ffa6d63b 268
814ad4bf 269 //Put Noise contribution
270 for(absID = 1; absID <= nEMC; absID++){
d968cee0 271 Float_t noise = gRandom->Gaus(0., fPinNoise);
814ad4bf 272 new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
273 //look if we have to add signal?
274 if(absID==nextSig){
275 //Add SDigits from all inputs
276 digit = (AliEMCALDigit *) digits->At(absID-1) ;
277
278 ticks->Clear() ;
279 Int_t contrib = 0 ;
280 Float_t a = digit->GetAmp() ;
281 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
282 //Mark the beginnign of the signal
283 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
284 //Mark the end of the ignal
285 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
286
287 // loop over input
288
289 for(i = 0; i< input ; i++){ //loop over (possible) merge sources
290 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
291 curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
292 else
293 curSDigit = 0 ;
294 //May be several digits will contribute from the same input
295 while(curSDigit && curSDigit->GetId() == absID){
296 //Shift primary to separate primaries belonging different inputs
297 Int_t primaryoffset ;
298 if(fManager)
299 primaryoffset = fManager->GetMask(i) ;
300 else
301 primaryoffset = i ;
302 curSDigit->ShiftPrimary(primaryoffset) ;
303
304 a = curSDigit->GetAmp() ;
305 b = a /fTimeSignalLength ;
306 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
307 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
308
309 *digit = *digit + *curSDigit ; //add energies
310
311 index[i]++ ;
312 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
313 curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
314 else
315 curSDigit = 0 ;
316 }
317 }
ffa6d63b 318
814ad4bf 319//calculate and set time
320 Float_t time = FrontEdgeTime(ticks) ;
321 digit->SetTime(time) ;
322
323 //Find next signal module
324 nextSig = 200000 ;
325 for(i=0; i<input; i++){
326 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
327 Int_t curNext = nextSig ;
328 if(sdigits->GetEntriesFast() > index[i] ){
329 curNext = ((AliEMCALDigit *) sdigits->At(index[i]))->GetId() ;
330
331 }
332 if(curNext < nextSig) nextSig = curNext ;
333 }
334 }
335 }
336
337 ticks->Delete() ;
338 delete ticks ;
61e0abb5 339
61e0abb5 340
61e0abb5 341
61e0abb5 342
814ad4bf 343 //remove digits below thresholds
344 for(absID = 0; absID < nEMC/2 ; absID++){
d968cee0 345 if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fTowerDigitThreshold)
814ad4bf 346 digits->RemoveAt(absID) ;
347 else
348 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
349 }
61e0abb5 350
814ad4bf 351 for(absID = nEMC/2; absID < nEMC ; absID++){
352 if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fPreShowerDigitThreshold)
353 digits->RemoveAt(absID) ;
354 else
355 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
61e0abb5 356 }
357
814ad4bf 358 digits->Compress() ;
61e0abb5 359
814ad4bf 360 Int_t ndigits = digits->GetEntriesFast() ;
61e0abb5 361
814ad4bf 362 digits->Expand(ndigits) ;
61e0abb5 363
61e0abb5 364
814ad4bf 365 //Set indexes in list of digits
366 //Int_t i ;
367 for (i = 0 ; i < ndigits ; i++) {
368 AliEMCALDigit * digit = (AliEMCALDigit *) digits->At(i) ;
369 digit->SetIndexInList(i) ;
370 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
371 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
61e0abb5 372 }
814ad4bf 373}
61e0abb5 374
814ad4bf 375//____________________________________________________________________________
61e0abb5 376
814ad4bf 377Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
378{
379 Int_t channel = -999;
380 Int_t nphi = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNPhi() ;
381 Int_t nz = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNZ() ;
382
383 if(absId <= nphi*nz) //digitize as tower
8e87f56a 384 channel = (Int_t) TMath::Ceil( (energy + fADCpedestalTower)/fADCchannelTower ) ;
814ad4bf 385 if(channel > fNADCTower ) channel = fNADCTower ;
386 else
8e87f56a 387 channel = (Int_t) TMath::Ceil( (energy + fADCpedestalPreSho)/fADCchannelPreSho ) ;
814ad4bf 388 if(channel > fNADCPreSho ) channel = fNADCPreSho ;
389
390 return channel ;
61e0abb5 391}
392
393//____________________________________________________________________________
394void AliEMCALDigitizer::Exec(Option_t *option) {
395 // Managing method
814ad4bf 396if(strcmp(GetName(), "") == 0 )
397 Init() ;
398
399 if (strstr(option,"print")) {
400 Print("");
401 return ;
402 }
403
61e0abb5 404 if(strstr(option,"tim"))
405 gBenchmark->Start("EMCALDigitizer");
406
814ad4bf 407 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
408
409 Int_t nevents ;
410
411 TTree * treeD ;
412
413 if(fManager){
414 treeD = fManager->GetTreeD() ;
415 nevents = 1 ; // Will process only one event
416 }
417 else {
418 gAlice->GetEvent(0) ;
419 nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
420 treeD=gAlice->TreeD() ;
421 }
422 if(treeD == 0 ){
423 cerr << " AliEMCALDigitizer :: Can not find TreeD " << endl ;
424 return ;
425 }
426
427 //Check, if this branch already exits
428 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
429 TIter next(lob) ;
430 TBranch * branch = 0 ;
431 Bool_t emcalfound = kFALSE, digitizerfound = kFALSE ;
61e0abb5 432
814ad4bf 433 while ( (branch = (TBranch*)next()) && (!emcalfound || !digitizerfound) ) {
434 if ( (strcmp(branch->GetName(), "EMCAL")==0) &&
435 (strcmp(branch->GetTitle(), GetName())==0) )
436 emcalfound = kTRUE ;
437
438 else if ( (strcmp(branch->GetName(), "AliEMCALDigitizer")==0) &&
439 (strcmp(branch->GetTitle(), GetName())==0) )
440 digitizerfound = kTRUE ;
441 }
442
443 if ( emcalfound ) {
444 cerr << "WARNING: AliEMCALDigitizer -> Digits branch with name " << GetName()
445 << " already exits" << endl ;
446 return ;
447 }
448 if ( digitizerfound ) {
449 cerr << "WARNING: AliEMCALDigitizer -> Digitizer branch with name " << GetName()
450 << " already exits" << endl ;
451 return ;
452 }
453
454 Int_t ievent ;
455
456 for(ievent = 0; ievent < nevents; ievent++){
457
458 if(fManager){
459 Int_t input ;
460 for(input = 0 ; input < fManager->GetNinputs(); input ++){
461 TTree * treeS = fManager->GetInputTreeS(input) ;
462 if(!treeS){
463 cerr << "AliEMCALDigitizer -> No Input " << endl ;
464 return ;
465 }
466 gime->ReadTreeS(treeS,input) ;
467 }
468 }
469 else
470 gime->Event(ievent,"S") ;
61e0abb5 471
814ad4bf 472 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
61e0abb5 473
814ad4bf 474 WriteDigits(ievent) ;
61e0abb5 475
476 if(strstr(option,"deb"))
477 PrintDigits(option);
814ad4bf 478
479 //increment the total number of Digits per run
480 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
61e0abb5 481 }
814ad4bf 482
61e0abb5 483 if(strstr(option,"tim")){
484 gBenchmark->Stop("EMCALDigitizer");
485 cout << "AliEMCALDigitizer:" << endl ;
814ad4bf 486 cout << " took " << gBenchmark->GetCpuTime("EMCALDigitizer") << " seconds for Digitizing "
487 << gBenchmark->GetCpuTime("EMCALDigitizer")/nevents << " seconds per event " << endl ;
61e0abb5 488 cout << endl ;
489 }
490
491}
492
61e0abb5 493
61e0abb5 494
61e0abb5 495//__________________________________________________________________
814ad4bf 496void AliEMCALDigitizer::MixWith(char* headerFile){
61e0abb5 497 // Alows produce digits by superimposing background and signal event.
498 // It is assumed, that headers file with SIGNAL events is opened in
499 // constructor, and now we set the BACKGROUND event, with which we
500 // will mix. Thus we avoid writing (changing) huge and expencive
501 // backgound files: all output will be writen into SIGNAL, i.e.
502 // opened in constructor file.
503 //
504 // One can open as many files to mix with as one wants.
505
814ad4bf 506if( strcmp(GetName(), "") == 0 )
61e0abb5 507 Init() ;
814ad4bf 508
509 if(fManager){
510 cout << "Can not use this method under AliRunDigitizer " << endl ;
61e0abb5 511 return ;
814ad4bf 512 } // check if the specified SDigits do not already exist on the White Board:
513 // //Folders/RunMC/Event/Data/EMCAL/SDigits/headerFile/sdigitsname
514
515 TString path = "Folders/RunMC/Event/Data/EMCAL/SDigits" ;
516 path += headerFile ;
517 path += "/" ;
518 path += GetName() ;
519 if ( gROOT->FindObjectAny(path.Data()) ) {
520 cerr << "WARNING: AliEMCALDigitizer::MixWith -> Entry already exists, do not add" << endl ;
521 return;
61e0abb5 522 }
814ad4bf 523
524 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
525 gime->PostSDigits(GetName(),headerFile) ;
61e0abb5 526
814ad4bf 527 // check if the requested file is already open or exist and if SDigits Branch exist
528 TFile * file = (TFile*)gROOT->FindObject(headerFile);
529 if ( !file ) {
530 file = new TFile(headerFile, "READ") ;
531 if (!file) {
532 cerr << "ERROR: AliEMCALDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
533 return ;
534 }
535 }
61e0abb5 536
537}
814ad4bf 538
61e0abb5 539//__________________________________________________________________
540void AliEMCALDigitizer::Print(Option_t* option)const {
814ad4bf 541 if( strcmp(GetName(), "") != 0) {
61e0abb5 542
543 cout << "------------------- "<< GetName() << " -------------" << endl ;
544 cout << "Digitizing sDigits from file(s): " <<endl ;
61e0abb5 545
814ad4bf 546 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("Folders/RunMC/Event/Data/EMCAL/SDigits"))->GetListOfFolders() ;
547 TIter next(folderslist) ;
548 TFolder * folder = 0 ;
549 while ( (folder = (TFolder*)next()) )
550 if ( folder->FindObject(GetName()) )
551 {
552 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
553 cout << endl ;
554 cout << "Writing digits to " << GetTitle() << endl ;
555
556 cout << endl ;
557 cout << "With following parameters: " << endl ;
558 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
d968cee0 559 cout << " Threshold in EMC (fTowerDigitThreshold) = " << fTowerDigitThreshold << endl;
814ad4bf 560 cout << " Threshold in PreShower (fPreShowerDigitThreshold) = " << fPreShowerDigitThreshold << endl ; ;
561 cout << "---------------------------------------------------" << endl ;
562 }
563 else
564 cout << "AliEMCALDigitizer not initialized " << endl ;
565 }
61e0abb5 566}
814ad4bf 567
61e0abb5 568//__________________________________________________________________
569void AliEMCALDigitizer::PrintDigits(Option_t * option){
570
814ad4bf 571 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
572 TClonesArray * fDigits = gime->Digits() ;
573
61e0abb5 574 cout << "AliEMCALDigitiser:"<< endl ;
575 cout << " Number of entries in Digits list " << fDigits->GetEntriesFast() << endl ;
576 cout << endl ;
577 if(strstr(option,"all")){
578
579 //loop over digits
580 AliEMCALDigit * digit;
581 cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
582 Int_t index ;
583 for (index = 0 ; index < fDigits->GetEntries() ; index++) {
584 digit = (AliEMCALDigit * ) fDigits->At(index) ;
585 cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
586 << setw(6) << digit->GetIndexInList() << " "
587 << setw(5) << digit->GetNprimary() <<" ";
588
589 Int_t iprimary;
590 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
591 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
592 cout << endl;
593 }
594
595 }
596}
814ad4bf 597//_________________________________________________________________________________________
598void AliEMCALDigitizer::WriteDigits(Int_t event)
599{
61e0abb5 600
814ad4bf 601 // Makes TreeD in the output file.
602 // Check if branch already exists:
603 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
604 // already existing branches.
605 // else creates branch with Digits, named "EMCAL", title "...",
606 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
607 // and names of files, from which digits are made.
61e0abb5 608
814ad4bf 609 AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
610 const TClonesArray * digits = gime->Digits(GetName()) ;
611 TTree * treeD ;
612
613 if(fManager)
614 treeD = fManager->GetTreeD() ;
615 else
616 treeD = gAlice->TreeD();
61e0abb5 617
814ad4bf 618 // create new branches
619 // -- generate file name if necessary
620 char * file =0;
621 if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
622 file = new char[strlen(gAlice->GetBaseFile())+20] ;
623 sprintf(file,"%s/EMCAL.Digits.root",gAlice->GetBaseFile()) ;
624 }
625
626 TDirectory *cwd = gDirectory;
627 // -- create Digits branch
628 Int_t bufferSize = 32000 ;
629 TBranch * digitsBranch = treeD->Branch("EMCAL",&digits,bufferSize);
630 digitsBranch->SetTitle(GetName());
631 if (file) {
632 digitsBranch->SetFile(file);
633 TIter next( digitsBranch->GetListOfBranches());
634 TBranch * sbr ;
635 while ((sbr=(TBranch*)next())) {
636 sbr->SetFile(file);
637 }
638 cwd->cd();
639 }
640
641 // -- Create Digitizer branch
642 Int_t splitlevel = 0 ;
643 AliEMCALDigitizer * d = gime->Digitizer(GetName()) ;
644 TBranch * digitizerBranch = treeD->Branch("AliEMCALDigitizer", "AliEMCALDigitizer", &d,bufferSize,splitlevel);
645 digitizerBranch->SetTitle(GetName());
646 if (file) {
647 digitizerBranch->SetFile(file);
648 TIter next( digitizerBranch->GetListOfBranches());
649 TBranch * sbr;
650 while ((sbr=(TBranch*)next())) {
651 sbr->SetFile(file);
652 }
653 cwd->cd();
654 }
655
656 digitsBranch->Fill() ;
657 digitizerBranch->Fill() ;
658
659 treeD->Write(0,kOverwrite) ;
660
661}
662//____________________________________________________________________________
663Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
664{ //
665 ticks->Sort() ; //Sort in accordance with times of ticks
666 TIter it(ticks) ;
667 AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
668 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
669
670 AliEMCALTick * t ;
671 while((t=(AliEMCALTick*) it.Next())){
672 if(t->GetTime() < time) //This tick starts before crossing
673 *ctick+=*t ;
674 else
675 return time ;
676
677 time = ctick->CrossingTime(fTimeThreshold) ;
678 }
679 return time ;
680}
681//____________________________________________________________________________
682Float_t AliEMCALDigitizer::TimeOfNoise(void)
683{ // Calculates the time signal generated by noise
684 //to be rewritten, now returns just big number
685 return 1. ;
686
687}
688//____________________________________________________________________________
689void AliEMCALDigitizer::SetSDigitsBranch(const char* title)
690{
691 // we set title (comment) of the SDigits branch in the first! header file
692 if( strcmp(GetName(), "") == 0 )
693 Init() ;
61e0abb5 694
814ad4bf 695 AliEMCALGetter::GetInstance()->SDigits()->SetName(title) ;
61e0abb5 696}