cerr replaced by Error
[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigitizer.cxx
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990119d6 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
88cb7938 18
990119d6 19//_________________________________________________________________________
990119d6 20//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
21//////////////////////////////////////////////////////////////////////////////
a4e98857 22// This TTask performs digitization of Summable digits (in the PHOS case it is just
23// the sum of contributions from all primary particles into a given cell).
990119d6 24// In addition it performs mixing of summable digits from different events.
7b7c1533 25// The name of the TTask is also the title of the branch that will contain
26// the created SDigits
27// The title of the TTAsk is the name of the file that contains the hits from
28// which the SDigits are created
bca3b32a 29//
30// For each event two branches are created in TreeD:
31// "PHOS" - list of digits
32// "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
33//
a4e98857 34// Note, that one can set a title for new digits branch, and repeat digitization with
bca3b32a 35// another set of parameters.
36//
a4e98857 37// Use case:
990119d6 38// root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
39// root[1] d->ExecuteTask()
40// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
41// //Digitizes SDigitis in all events found in file galice.root
bca3b32a 42//
8cb3533f 43// root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
44// // Will read sdigits from galice1.root
45// root[3] d1->MixWith("galice2.root")
990119d6 46// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
a4e98857 47// // Reads another set of sdigits from galice2.root
8cb3533f 48// root[3] d1->MixWith("galice3.root")
a4e98857 49// // Reads another set of sdigits from galice3.root
8cb3533f 50// root[4] d->ExecuteTask("deb timing")
51// // Reads SDigits from files galice1.root, galice2.root ....
52// // mixes them and stores produced Digits in file galice1.root
53// // deb - prints number of produced digits
54// // deb all - prints list of produced digits
55// // timing - prints time used for digitization
990119d6 56//
990119d6 57
58// --- ROOT system ---
990119d6 59#include "TTree.h"
60#include "TSystem.h"
8cb3533f 61#include "TBenchmark.h"
e957fea8 62#include "TRandom.h"
ba54256b 63
990119d6 64// --- Standard library ---
65
66// --- AliRoot header files ---
e957fea8 67
3f81a70b 68#include "AliRunDigitizer.h"
990119d6 69#include "AliPHOSDigit.h"
7b7c1533 70#include "AliPHOSGetter.h"
990119d6 71#include "AliPHOSDigitizer.h"
72#include "AliPHOSSDigitizer.h"
8cb3533f 73#include "AliPHOSGeometry.h"
7437a0f7 74#include "AliPHOSTick.h"
990119d6 75
76ClassImp(AliPHOSDigitizer)
77
78
79//____________________________________________________________________________
88cb7938 80 AliPHOSDigitizer::AliPHOSDigitizer():AliDigitizer("",""),
81 fInput(0),
82 fInputFileNames(0x0),
83 fEventNames(0x0)
990119d6 84{
85 // ctor
8d0f3f77 86 InitParameters() ;
9bd3caba 87 fDefaultInit = kTRUE ;
fbf811ec 88 fManager = 0 ; // We work in the standalong mode
88cb7938 89 fEventFolderName = "" ;
90}
3f81a70b 91
92//____________________________________________________________________________
fc7e2f43 93AliPHOSDigitizer::AliPHOSDigitizer(TString alirunFileName, TString eventFolderName):
88cb7938 94 AliDigitizer("PHOS"+AliConfig::fgkDigitizerTaskName, alirunFileName),
95 fInputFileNames(0), fEventNames(0), fEventFolderName(eventFolderName)
3f81a70b 96{
97 // ctor
8d0f3f77 98 InitParameters() ;
3f81a70b 99 Init() ;
92f521a9 100 fDefaultInit = kFALSE ;
88cb7938 101 fManager = 0 ; // We work in the standalong mode
102}
103
104//____________________________________________________________________________
105AliPHOSDigitizer::AliPHOSDigitizer(const AliPHOSDigitizer & d)
a8c47ab6 106 : AliDigitizer(d)
88cb7938 107{
108 // copyy ctor
109
110 SetName(d.GetName()) ;
111 SetTitle(d.GetTitle()) ;
112 fPinNoise = d.fPinNoise ;
113 fEMCDigitThreshold = d.fEMCDigitThreshold ;
114 fCPVNoise = d.fCPVNoise ;
115 fCPVDigitThreshold = d.fCPVDigitThreshold ;
116 fTimeResolution = d.fTimeResolution ;
117 fTimeThreshold = d.fTimeThreshold ;
118 fTimeSignalLength = d.fTimeSignalLength ;
119 fADCchanelEmc = d.fADCchanelEmc ;
120 fADCpedestalEmc = d.fADCpedestalEmc ;
121 fNADCemc = d.fNADCemc ;
122 fADCchanelCpv = d.fADCchanelCpv ;
123 fADCpedestalCpv = d.fADCpedestalCpv ;
124 fNADCcpv = d.fNADCcpv ;
125 fEventFolderName = d.fEventFolderName;
990119d6 126}
127
990119d6 128//____________________________________________________________________________
88cb7938 129AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * rd):
130 AliDigitizer(rd,"PHOS"+AliConfig::fgkDigitizerTaskName),
131 fEventFolderName(0)
990119d6 132{
133 // ctor
88cb7938 134 fManager = rd ;
8da7719d 135 fEventFolderName = fManager->GetInputFolderName(0) ;
88cb7938 136 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
b22e4735 137 InitParameters() ;
88cb7938 138 Init() ;
fbf811ec 139 fDefaultInit = kFALSE ;
990119d6 140}
141
142//____________________________________________________________________________
143 AliPHOSDigitizer::~AliPHOSDigitizer()
144{
145 // dtor
797e311f 146 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(),fEventFolderName);
147 gime->PhosLoader()->CleanDigitizer();
88cb7938 148 delete [] fInputFileNames ;
149 delete [] fEventNames ;
150
990119d6 151}
152
153//____________________________________________________________________________
fc7e2f43 154void AliPHOSDigitizer::Digitize(Int_t event)
a4e98857 155{
156
157 // Makes the digitization of the collected summable digits.
158 // It first creates the array of all PHOS modules
159 // filled with noise (different for EMC, CPV and PPSD) and
160 // then adds contributions from SDigits.
161 // This design avoids scanning over the list of digits to add
162 // contribution to new SDigits only.
990119d6 163
88cb7938 164 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
165 TClonesArray * digits = gime->Digits() ;
7b7c1533 166 digits->Clear() ;
990119d6 167
7b7c1533 168 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 169 //Making digits with noise, first EMC
170 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
171
172 Int_t nCPV ;
990119d6 173 Int_t absID ;
990119d6 174
88cb7938 175 nCPV = nEMC + geom->GetNumberOfCPVPadsZ() * geom->GetNumberOfCPVPadsPhi() * geom->GetNModules() ;
176
9688c1dd 177 digits->Expand(nCPV) ;
8cb3533f 178
88cb7938 179 // get first the sdigitizer from the tasks list
180 if ( !gime->SDigitizer() )
181 gime->LoadSDigitizer();
182 AliPHOSSDigitizer * sDigitizer = gime->SDigitizer();
183
184 if ( !sDigitizer )
185 Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
186
187 //take all the inputs to add together and load the SDigits
188 TObjArray * sdigArray = new TObjArray(fInput) ;
189 sdigArray->AddAt(gime->SDigits(), 0) ;
190 Int_t i ;
191 for(i = 1 ; i < fInput ; i++){
192 TString tempo(fEventNames[i]) ;
193 tempo += i ;
194 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[i], tempo) ;
195 gime->Event(event,"S");
196 sdigArray->AddAt(gime->SDigits(), i) ;
38bb0fd5 197 }
9688c1dd 198
7a9d98f9 199 //Find the first crystall with signal
9688c1dd 200 Int_t nextSig = 200000 ;
88cb7938 201 TClonesArray * sdigits ;
202 for(i = 0 ; i < fInput ; i++){
203 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
a6eedfad 204 if ( !sdigits->GetEntriesFast() )
7a9d98f9 205 continue ;
88cb7938 206 Int_t curNext = dynamic_cast<AliPHOSDigit *>(sdigits->At(0))->GetId() ;
207 if(curNext < nextSig)
208 nextSig = curNext ;
9688c1dd 209 }
88cb7938 210
211 TArrayI index(fInput) ;
9688c1dd 212 index.Reset() ; //Set all indexes to zero
88cb7938 213
9688c1dd 214 AliPHOSDigit * digit ;
215 AliPHOSDigit * curSDigit ;
88cb7938 216
7437a0f7 217 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
88cb7938 218
9688c1dd 219 //Put Noise contribution
88cb7938 220 for(absID = 1 ; absID <= nEMC ; absID++){
9688c1dd 221 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
88cb7938 222 new((*digits)[absID-1]) AliPHOSDigit( -1, absID, sDigitizer->Digitize(noise), TimeOfNoise() ) ;
9688c1dd 223 //look if we have to add signal?
88cb7938 224 digit = dynamic_cast<AliPHOSDigit *>(digits->At(absID-1)) ;
225
9688c1dd 226 if(absID==nextSig){
227 //Add SDigits from all inputs
7437a0f7 228 ticks->Clear() ;
9688c1dd 229 Int_t contrib = 0 ;
7437a0f7 230 Float_t a = digit->GetAmp() ;
88cb7938 231 Float_t b = TMath::Abs( a / fTimeSignalLength) ;
232 //Mark the beginning of the signal
7437a0f7 233 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
234 //Mark the end of the ignal
235 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
88cb7938 236
9688c1dd 237 //loop over inputs
88cb7938 238 for(i = 0 ; i < fInput ; i++){
239 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
240 curSDigit = dynamic_cast<AliPHOSDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 241 else
242 curSDigit = 0 ;
9688c1dd 243 //May be several digits will contribute from the same input
244 while(curSDigit && curSDigit->GetId() == absID){
245 //Shift primary to separate primaries belonging different inputs
246 Int_t primaryoffset ;
9891b76e 247 if(fManager)
248 primaryoffset = fManager->GetMask(i) ;
9688c1dd 249 else
21c293b7 250 primaryoffset = 10000000*i ;
251 curSDigit->ShiftPrimary(primaryoffset) ;
7437a0f7 252
253 a = curSDigit->GetAmp() ;
254 b = a /fTimeSignalLength ;
255 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
256 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
88cb7938 257
9688c1dd 258 *digit = *digit + *curSDigit ; //add energies
88cb7938 259
9688c1dd 260 index[i]++ ;
88cb7938 261 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
262 curSDigit = dynamic_cast<AliPHOSDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 263 else
264 curSDigit = 0 ;
9688c1dd 265 }
266 }
88cb7938 267
9688c1dd 268 //calculate and set time
7437a0f7 269 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 270 digit->SetTime(time) ;
88cb7938 271
9688c1dd 272 //Find next signal module
7437a0f7 273 nextSig = 200000 ;
88cb7938 274 for(i = 0 ; i < fInput ; i++){
275 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
5c9dfca0 276 Int_t curNext = nextSig ;
277 if(sdigits->GetEntriesFast() > index[i] ){
88cb7938 278 curNext = dynamic_cast<AliPHOSDigit *>(sdigits->At(index[i]))->GetId() ;
5c9dfca0 279 }
9688c1dd 280 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 281 }
282 }
990119d6 283 }
3f81a70b 284
7437a0f7 285 ticks->Delete() ;
286 delete ticks ;
88cb7938 287
9688c1dd 288 //Now CPV digits (different noise and no timing)
289 for(absID = nEMC+1; absID <= nCPV; absID++){
290 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
291 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
292 //look if we have to add signal?
293 if(absID==nextSig){
88cb7938 294 digit = dynamic_cast<AliPHOSDigit *>(digits->At(absID-1)) ;
9688c1dd 295 //Add SDigits from all inputs
88cb7938 296 for(i = 0 ; i < fInput ; i++){
297 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
298 curSDigit = dynamic_cast<AliPHOSDigit*>( dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 299 else
300 curSDigit = 0 ;
a6eedfad 301
9688c1dd 302 //May be several digits will contribute from the same input
303 while(curSDigit && curSDigit->GetId() == absID){
304 //Shift primary to separate primaries belonging different inputs
305 Int_t primaryoffset ;
9891b76e 306 if(fManager)
307 primaryoffset = fManager->GetMask(i) ;
9688c1dd 308 else
309 primaryoffset = 10000000*i ;
310 curSDigit->ShiftPrimary(primaryoffset) ;
311
312 //add energies
313 *digit = *digit + *curSDigit ;
314 index[i]++ ;
88cb7938 315 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
316 curSDigit = dynamic_cast<AliPHOSDigit*>( dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i]) ) ;
5c9dfca0 317 else
318 curSDigit = 0 ;
9688c1dd 319 }
320 }
a6eedfad 321
9688c1dd 322 //Find next signal module
a6eedfad 323 nextSig = 200000 ;
88cb7938 324 for(i = 0 ; i < fInput ; i++){
325 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
5c9dfca0 326 Int_t curNext = nextSig ;
327 if(sdigits->GetEntriesFast() > index[i] )
88cb7938 328 curNext = dynamic_cast<AliPHOSDigit *>( sdigits->At(index[i]) )->GetId() ;
9688c1dd 329 if(curNext < nextSig) nextSig = curNext ;
330 }
331
332 }
333 }
88cb7938 334
335 delete sdigArray ; //We should not delete its contents
9688c1dd 336
990119d6 337 //remove digits below thresholds
88cb7938 338 for(i = 0 ; i < nEMC ; i++){
548f0134 339 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
aaf8a71c 340 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
a6eedfad 341 digits->RemoveAt(i) ;
aaf8a71c 342 else
343 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
344 }
345
a6eedfad 346
347 for(i = nEMC; i < nCPV ; i++)
88cb7938 348 if( sDigitizer->Calibrate( dynamic_cast<AliPHOSDigit*>(digits->At(i))->GetAmp() ) < fCPVDigitThreshold )
a6eedfad 349 digits->RemoveAt(i) ;
9688c1dd 350
7b7c1533 351 digits->Compress() ;
990119d6 352
7b7c1533 353 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 354 digits->Expand(ndigits) ;
990119d6 355
3758d9fc 356 //Set indexes in list of digits and make true digitization of the energy
990119d6 357 for (i = 0 ; i < ndigits ; i++) {
548f0134 358 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
990119d6 359 digit->SetIndexInList(i) ;
f672adc8 360 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
3758d9fc 361 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 362 }
7b7c1533 363}
548f0134 364
3758d9fc 365//____________________________________________________________________________
366Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
367{
0bc3b8ed 368 // Returns digitized value of the energy in a cell absId
369
3758d9fc 370 Int_t chanel ;
371 if(absId <= fEmcCrystals){ //digitize as EMC
372 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
373 if(chanel > fNADCemc ) chanel = fNADCemc ;
374 }
375 else{ //Digitize as CPV
376 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
377 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
378 }
379 return chanel ;
380}
548f0134 381
7b7c1533 382//____________________________________________________________________________
383void AliPHOSDigitizer::Exec(Option_t *option)
384{
212d1c0f 385 // Steering method to process digitization for events
386 // in the range from fFirstEvent to fLastEvent.
387 // This range is optionally set by SetEventRange().
388 // if fLastEvent=-1 (by default), then process events until the end.
88cb7938 389
390 if (!fInit) { // to prevent overwrite existing file
391 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
392 return ;
393 }
990119d6 394
7b7c1533 395 if (strstr(option,"print")) {
88cb7938 396 Print();
7b7c1533 397 return ;
8cb3533f 398 }
990119d6 399
7b7c1533 400 if(strstr(option,"tim"))
401 gBenchmark->Start("PHOSDigitizer");
3f81a70b 402
88cb7938 403 if (fManager)
404 fInput = fManager->GetNinputs() ;
3f81a70b 405
88cb7938 406 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
407
212d1c0f 408 if (fLastEvent == -1)
409 fLastEvent = gime->MaxEvent() - 1 ;
410 else
411 fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent());
412 Int_t nEvents = fLastEvent - fFirstEvent + 1;
413
7b7c1533 414 Int_t ievent ;
88cb7938 415
212d1c0f 416 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
88cb7938 417
418 gime->Event(ievent,"S") ;
b22e4735 419
7b7c1533 420 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
88cb7938 421
90cceaf6 422 WriteDigits() ;
88cb7938 423
01a599c9 424 if(strstr(option,"deb"))
425 PrintDigits(option);
94de8339 426
427 //increment the total number of Digits per run
428 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
88cb7938 429 }
430
8cb3533f 431 if(strstr(option,"tim")){
432 gBenchmark->Stop("PHOSDigitizer");
21cd0c07 433 TString message ;
434 message = " took %f seconds for Digitizing %f seconds per event\n" ;
435 Info("Exec", message.Data(),
436 gBenchmark->GetCpuTime("PHOSDigitizer"),
212d1c0f 437 gBenchmark->GetCpuTime("PHOSDigitizer")/nEvents );
21cd0c07 438 }
990119d6 439}
440
9688c1dd 441//____________________________________________________________________________
0bc3b8ed 442Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks) const
443{
444 // Returns the shortest time among all time ticks
445
7437a0f7 446 ticks->Sort() ; //Sort in accordance with times of ticks
447 TIter it(ticks) ;
448 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
449 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
450
451 AliPHOSTick * t ;
452 while((t=(AliPHOSTick*) it.Next())){
453 if(t->GetTime() < time) //This tick starts before crossing
454 *ctick+=*t ;
455 else
456 return time ;
457
458 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 459 }
460 return time ;
9688c1dd 461}
8d0f3f77 462
7b7c1533 463//____________________________________________________________________________
3f81a70b 464Bool_t AliPHOSDigitizer::Init()
8d0f3f77 465{
fbf811ec 466 // Makes all memory allocations
88cb7938 467 fInit = kTRUE ;
468 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
8d0f3f77 469 if ( gime == 0 ) {
88cb7938 470 Fatal("Init" ,"Could not obtain the Getter object for file %s and event %s !", GetTitle(), fEventFolderName.Data()) ;
8d0f3f77 471 return kFALSE;
472 }
473
474 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
b22e4735 475
88cb7938 476 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
8d0f3f77 477
88cb7938 478 TString opt("Digits") ;
479 if(gime->VersionExists(opt) ) {
480 Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ;
481 fInit = kFALSE ;
482 }
483
8d0f3f77 484 // Post Digitizer to the white board
485 gime->PostDigitizer(this) ;
486
88cb7938 487 if (fManager)
488 fInput = fManager->GetNinputs() ;
489 else
490 fInput = 1 ;
491
492 fInputFileNames = new TString[fInput] ;
493 fEventNames = new TString[fInput] ;
494 fInputFileNames[0] = GetTitle() ;
495 fEventNames[0] = fEventFolderName.Data() ;
496 Int_t index ;
497 for (index = 1 ; index < fInput ; index++) {
498 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
499 TString tempo = fManager->GetInputFolderName(index) ;
500 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
8d0f3f77 501 }
88cb7938 502
503 //to prevent cleaning of this object while GetEvent is called
504 gime->PhosLoader()->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
505
506 return fInit ;
8d0f3f77 507}
508
509//____________________________________________________________________________
510void AliPHOSDigitizer::InitParameters()
a4e98857 511{
0bc3b8ed 512 // Set initial parameters for Digitizer
513
c74936f1 514 fPinNoise = 0.004 ;
515 fEMCDigitThreshold = 0.012 ;
3758d9fc 516 fCPVNoise = 0.01;
517 fCPVDigitThreshold = 0.09 ;
aaf8a71c 518 fTimeResolution = 0.5e-9 ;
3758d9fc 519 fTimeSignalLength = 1.0e-9 ;
520 fDigitsInRun = 0 ;
521 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
522 fADCpedestalEmc = 0.005 ; //
523 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
524
525 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
526 fADCpedestalCpv = 0.012 ; //
527 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
528
529 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
212d1c0f 530 SetEventRange(0,-1) ;
8cb3533f 531
990119d6 532}
7b7c1533 533
990119d6 534//__________________________________________________________________
fc7e2f43 535void AliPHOSDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
a4e98857 536{
ba54256b 537 // Allows to produce digits by superimposing background and signal event.
bca3b32a 538 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 539 // the constructor.
540 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
541 // Thus we avoid writing (changing) huge and expensive
bca3b32a 542 // backgound files: all output will be writen into SIGNAL, i.e.
543 // opened in constructor file.
544 //
a4e98857 545 // One can open as many files to mix with as one needs.
7b7c1533 546 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
547 // can be mixed.
bca3b32a 548
88cb7938 549 if( strcmp(fEventFolderName, "") == 0 )
8cb3533f 550 Init() ;
551
9891b76e 552 if(fManager){
88cb7938 553 Warning("MixWith", "Cannot use this method with AliRunDigitizer\n" ) ;
3f81a70b 554 return ;
555 }
88cb7938 556 // looking for file which contains AliRun
557 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
558 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
559 return ;
990119d6 560 }
88cb7938 561 // looking for the file which contains SDigits
562 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
563 TString fileName( gime->GetSDigitsFileName() ) ;
564 if ( eventFolderName != AliConfig::fgkDefaultEventFolderName) // only if not the default folder name
565 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
566 if ( (gSystem->AccessPathName(fileName)) ) {
567 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
568 return ;
7b7c1533 569 }
88cb7938 570 // need to increase the arrays
571 TString tempo = fInputFileNames[fInput-1] ;
572 delete [] fInputFileNames ;
573 fInputFileNames = new TString[fInput+1] ;
574 fInputFileNames[fInput-1] = tempo ;
575
576 tempo = fEventNames[fInput-1] ;
577 delete [] fEventNames ;
578 fEventNames = new TString[fInput+1] ;
579 fEventNames[fInput-1] = tempo ;
580
581 fInputFileNames[fInput] = alirunFileName ;
582 fEventNames[fInput] = eventFolderName ;
583 fInput++ ;
990119d6 584}
7b7c1533 585
990119d6 586//__________________________________________________________________
88cb7938 587void AliPHOSDigitizer::Print()const
21cd0c07 588{
dd5c4038 589 // Print Digitizer's parameters
88cb7938 590 Info("Print", "\n------------------- %s -------------", GetName() ) ;
591 if( strcmp(fEventFolderName.Data(), "") != 0 ){
592 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
593
594 Int_t nStreams ;
595 if (fManager)
596 nStreams = GetNInputStreams() ;
597 else
598 nStreams = fInput ;
599
600 Int_t index = 0 ;
601 for (index = 0 ; index < nStreams ; index++) {
602 TString tempo(fEventNames[index]) ;
603 tempo += index ;
604 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[index], tempo) ;
605 TString fileName( gime->GetSDigitsFileName() ) ;
606 if ( fEventNames[index] != AliConfig::fgkDefaultEventFolderName) // only if not the default folder name
607 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
608 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
609 }
610 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
611 printf("\nWriting digits to %s", gime->GetDigitsFileName().Data()) ;
612
613 printf("\nWith following parameters:\n") ;
614 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise ) ;
615 printf(" Threshold in EMC (fEMCDigitThreshold) = %f\n", fEMCDigitThreshold ) ;
616 printf(" Noise in CPV (fCPVNoise) = %f\n", fCPVNoise ) ;
617 printf(" Threshold in CPV (fCPVDigitThreshold) = %f\n",fCPVDigitThreshold ) ;
618 printf(" ---------------------------------------------------\n") ;
990119d6 619 }
8cb3533f 620 else
88cb7938 621 Info("Print", "AliPHOSDigitizer not initialized" ) ;
8cb3533f 622
623}
88cb7938 624
8cb3533f 625//__________________________________________________________________
21cd0c07 626 void AliPHOSDigitizer::PrintDigits(Option_t * option)
627{
3bf72d32 628 // Print a table of digits
21cd0c07 629
88cb7938 630 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
3bf72d32 631 TClonesArray * digits = gime->Digits() ;
632
88cb7938 633 Info("PrintDigits", "%d", digits->GetEntriesFast()) ;
634 printf("\nevent %d", gAlice->GetEvNumber()) ;
635 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
636
11f9c5ff 637
3bf72d32 638 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 639 //loop over digits
640 AliPHOSDigit * digit;
88cb7938 641 printf("\nEMC digits (with primaries):\n") ;
642 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 643 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 644 Int_t index ;
a6eedfad 645 for (index = 0 ; (index < digits->GetEntriesFast()) &&
88cb7938 646 (dynamic_cast<AliPHOSDigit *>(digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 647 digit = (AliPHOSDigit * ) digits->At(index) ;
21cd0c07 648 if(digit->GetNprimary() == 0)
649 continue;
81d5f731 650 printf("%6d %8d %6.5e %4d %2d :",
11f9c5ff 651 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
8cb3533f 652 Int_t iprimary;
21cd0c07 653 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 654 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 655 }
81d5f731 656 printf("\n") ;
21cd0c07 657 }
9688c1dd 658 }
3bf72d32 659
9688c1dd 660 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 661
9688c1dd 662 //loop over CPV digits
663 AliPHOSDigit * digit;
88cb7938 664 printf("\nCPV digits (with primaries):\n") ;
665 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 666 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
667 Int_t index ;
a6eedfad 668 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 669 digit = (AliPHOSDigit * ) digits->At(index) ;
670 if(digit->GetId() > maxEmc){
81d5f731 671 printf("%6d %8d %4d %2d :",
11f9c5ff 672 digit->GetId(), digit->GetAmp(), digit->GetIndexInList(), digit->GetNprimary()) ;
9688c1dd 673 Int_t iprimary;
21cd0c07 674 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 675 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 676 }
81d5f731 677 printf("\n") ;
21cd0c07 678 }
9688c1dd 679 }
8cb3533f 680 }
88cb7938 681
8cb3533f 682}
7b7c1533 683
9688c1dd 684//__________________________________________________________________
0bc3b8ed 685Float_t AliPHOSDigitizer::TimeOfNoise(void) const
9688c1dd 686{ // Calculates the time signal generated by noise
687 //to be rewritten, now returns just big number
688 return 1. ;
689
8cb3533f 690}
7b7c1533 691
88cb7938 692//__________________________________________________________________
693void AliPHOSDigitizer::Unload()
694{
695
696 Int_t i ;
697 for(i = 1 ; i < fInput ; i++){
698 TString tempo(fEventNames[i]) ;
699 tempo += i ;
700 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[i], tempo) ;
701 gime->PhosLoader()->UnloadSDigits() ;
702 }
703
704 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
705 gime->PhosLoader()->UnloadDigits() ;
706}
707
7b7c1533 708//____________________________________________________________________________
90cceaf6 709void AliPHOSDigitizer::WriteDigits()
7b7c1533 710{
711
712 // Makes TreeD in the output file.
713 // Check if branch already exists:
714 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
715 // already existing branches.
716 // else creates branch with Digits, named "PHOS", title "...",
717 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
718 // and names of files, from which digits are made.
719
88cb7938 720 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
721 const TClonesArray * digits = gime->Digits() ;
722 TTree * treeD = gime->TreeD();
723
7b7c1533 724 // -- create Digits branch
725 Int_t bufferSize = 32000 ;
ba54256b 726 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
88cb7938 727 digitsBranch->SetTitle(fEventFolderName);
728 digitsBranch->Fill() ;
fbf811ec 729
88cb7938 730 gime->WriteDigits("OVERWRITE");
731 gime->WriteDigitizer("OVERWRITE");
732
733 Unload() ;
b3690abb 734
7b7c1533 735}