coding convention
[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//____________________________________________________________________________
88cb7938 93AliPHOSDigitizer::AliPHOSDigitizer(const TString alirunFileName, const TString eventFolderName):
94 AliDigitizer("PHOS"+AliConfig::fgkDigitizerTaskName, alirunFileName),
95 fInputFileNames(0), fEventNames(0), fEventFolderName(eventFolderName)
3f81a70b 96{
97 // ctor
ea5f3389 98
8d0f3f77 99 InitParameters() ;
3f81a70b 100 Init() ;
92f521a9 101 fDefaultInit = kFALSE ;
88cb7938 102 fManager = 0 ; // We work in the standalong mode
103}
104
105//____________________________________________________________________________
106AliPHOSDigitizer::AliPHOSDigitizer(const AliPHOSDigitizer & d)
a8c47ab6 107 : AliDigitizer(d)
88cb7938 108{
109 // copyy ctor
110
111 SetName(d.GetName()) ;
112 SetTitle(d.GetTitle()) ;
113 fPinNoise = d.fPinNoise ;
114 fEMCDigitThreshold = d.fEMCDigitThreshold ;
115 fCPVNoise = d.fCPVNoise ;
116 fCPVDigitThreshold = d.fCPVDigitThreshold ;
117 fTimeResolution = d.fTimeResolution ;
118 fTimeThreshold = d.fTimeThreshold ;
119 fTimeSignalLength = d.fTimeSignalLength ;
120 fADCchanelEmc = d.fADCchanelEmc ;
121 fADCpedestalEmc = d.fADCpedestalEmc ;
122 fNADCemc = d.fNADCemc ;
123 fADCchanelCpv = d.fADCchanelCpv ;
124 fADCpedestalCpv = d.fADCpedestalCpv ;
125 fNADCcpv = d.fNADCcpv ;
126 fEventFolderName = d.fEventFolderName;
990119d6 127}
128
990119d6 129//____________________________________________________________________________
88cb7938 130AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * rd):
131 AliDigitizer(rd,"PHOS"+AliConfig::fgkDigitizerTaskName),
132 fEventFolderName(0)
990119d6 133{
134 // ctor
88cb7938 135 fManager = rd ;
136 SetName(fManager->GetInputFolderName(0)) ;
137 // take title as name of stream 0
138 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
b22e4735 139 InitParameters() ;
88cb7938 140 Init() ;
fbf811ec 141 fDefaultInit = kFALSE ;
990119d6 142}
143
144//____________________________________________________________________________
145 AliPHOSDigitizer::~AliPHOSDigitizer()
146{
147 // dtor
88cb7938 148 delete [] fInputFileNames ;
149 delete [] fEventNames ;
150
990119d6 151}
152
153//____________________________________________________________________________
7b7c1533 154void AliPHOSDigitizer::Digitize(const 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{
88cb7938 385 // Does the job
386
387 if (!fInit) { // to prevent overwrite existing file
388 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
389 return ;
390 }
990119d6 391
7b7c1533 392 if (strstr(option,"print")) {
88cb7938 393 Print();
7b7c1533 394 return ;
8cb3533f 395 }
990119d6 396
7b7c1533 397 if(strstr(option,"tim"))
398 gBenchmark->Start("PHOSDigitizer");
3f81a70b 399
88cb7938 400 if (fManager)
401 fInput = fManager->GetNinputs() ;
3f81a70b 402
88cb7938 403 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
404
405 Int_t nevents = gime->MaxEvent() ;
8cb3533f 406
7b7c1533 407 Int_t ievent ;
88cb7938 408
7b7c1533 409 for(ievent = 0; ievent < nevents; ievent++){
88cb7938 410
411 gime->Event(ievent,"S") ;
b22e4735 412
7b7c1533 413 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
88cb7938 414
90cceaf6 415 WriteDigits() ;
88cb7938 416
01a599c9 417 if(strstr(option,"deb"))
418 PrintDigits(option);
94de8339 419
420 //increment the total number of Digits per run
421 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
88cb7938 422 }
423
8cb3533f 424 if(strstr(option,"tim")){
425 gBenchmark->Stop("PHOSDigitizer");
21cd0c07 426 TString message ;
427 message = " took %f seconds for Digitizing %f seconds per event\n" ;
428 Info("Exec", message.Data(),
429 gBenchmark->GetCpuTime("PHOSDigitizer"),
430 gBenchmark->GetCpuTime("PHOSDigitizer")/nevents );
431 }
990119d6 432}
433
7b7c1533 434//____________________________________________________________________________
0bc3b8ed 435Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks) const
436{
437 // Returns the shortest time among all time ticks
438
7437a0f7 439 ticks->Sort() ; //Sort in accordance with times of ticks
440 TIter it(ticks) ;
441 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
442 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
443
444 AliPHOSTick * t ;
445 while((t=(AliPHOSTick*) it.Next())){
446 if(t->GetTime() < time) //This tick starts before crossing
447 *ctick+=*t ;
448 else
449 return time ;
450
451 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 452 }
453 return time ;
9688c1dd 454}
8d0f3f77 455
9688c1dd 456//____________________________________________________________________________
3f81a70b 457Bool_t AliPHOSDigitizer::Init()
a4e98857 458{
fbf811ec 459 // Makes all memory allocations
88cb7938 460 fInit = kTRUE ;
461 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
8d0f3f77 462 if ( gime == 0 ) {
88cb7938 463 Fatal("Init" ,"Could not obtain the Getter object for file %s and event %s !", GetTitle(), fEventFolderName.Data()) ;
8d0f3f77 464 return kFALSE;
465 }
466
467 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
b22e4735 468
88cb7938 469 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
8d0f3f77 470
88cb7938 471 TString opt("Digits") ;
472 if(gime->VersionExists(opt) ) {
473 Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ;
474 fInit = kFALSE ;
475 }
476
8d0f3f77 477 // Post Digitizer to the white board
478 gime->PostDigitizer(this) ;
479
88cb7938 480 if (fManager)
481 fInput = fManager->GetNinputs() ;
482 else
483 fInput = 1 ;
484
485 fInputFileNames = new TString[fInput] ;
486 fEventNames = new TString[fInput] ;
487 fInputFileNames[0] = GetTitle() ;
488 fEventNames[0] = fEventFolderName.Data() ;
489 Int_t index ;
490 for (index = 1 ; index < fInput ; index++) {
491 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
492 TString tempo = fManager->GetInputFolderName(index) ;
493 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
8d0f3f77 494 }
88cb7938 495
496 //to prevent cleaning of this object while GetEvent is called
497 gime->PhosLoader()->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
498
499 return fInit ;
8d0f3f77 500}
501
502//____________________________________________________________________________
503void AliPHOSDigitizer::InitParameters()
504{
0bc3b8ed 505 // Set initial parameters for Digitizer
506
c74936f1 507 fPinNoise = 0.004 ;
508 fEMCDigitThreshold = 0.012 ;
3758d9fc 509 fCPVNoise = 0.01;
510 fCPVDigitThreshold = 0.09 ;
aaf8a71c 511 fTimeResolution = 0.5e-9 ;
3758d9fc 512 fTimeSignalLength = 1.0e-9 ;
513 fDigitsInRun = 0 ;
514 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
515 fADCpedestalEmc = 0.005 ; //
516 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
517
518 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
519 fADCpedestalCpv = 0.012 ; //
520 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
521
522 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
8cb3533f 523
990119d6 524}
7b7c1533 525
990119d6 526//__________________________________________________________________
88cb7938 527void AliPHOSDigitizer::MixWith(const TString alirunFileName, const TString eventFolderName)
a4e98857 528{
ba54256b 529 // Allows to produce digits by superimposing background and signal event.
bca3b32a 530 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 531 // the constructor.
532 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
533 // Thus we avoid writing (changing) huge and expensive
bca3b32a 534 // backgound files: all output will be writen into SIGNAL, i.e.
535 // opened in constructor file.
536 //
a4e98857 537 // One can open as many files to mix with as one needs.
7b7c1533 538 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
539 // can be mixed.
bca3b32a 540
88cb7938 541 if( strcmp(fEventFolderName, "") == 0 )
8cb3533f 542 Init() ;
543
9891b76e 544 if(fManager){
88cb7938 545 Warning("MixWith", "Cannot use this method with AliRunDigitizer\n" ) ;
3f81a70b 546 return ;
547 }
88cb7938 548 // looking for file which contains AliRun
549 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
550 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
551 return ;
990119d6 552 }
88cb7938 553 // looking for the file which contains SDigits
554 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
555 TString fileName( gime->GetSDigitsFileName() ) ;
556 if ( eventFolderName != AliConfig::fgkDefaultEventFolderName) // only if not the default folder name
557 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
558 if ( (gSystem->AccessPathName(fileName)) ) {
559 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
560 return ;
7b7c1533 561 }
88cb7938 562 // need to increase the arrays
563 TString tempo = fInputFileNames[fInput-1] ;
564 delete [] fInputFileNames ;
565 fInputFileNames = new TString[fInput+1] ;
566 fInputFileNames[fInput-1] = tempo ;
567
568 tempo = fEventNames[fInput-1] ;
569 delete [] fEventNames ;
570 fEventNames = new TString[fInput+1] ;
571 fEventNames[fInput-1] = tempo ;
572
573 fInputFileNames[fInput] = alirunFileName ;
574 fEventNames[fInput] = eventFolderName ;
575 fInput++ ;
990119d6 576}
7b7c1533 577
b3690abb 578//__________________________________________________________________
88cb7938 579void AliPHOSDigitizer::Print()const
21cd0c07 580{
dd5c4038 581 // Print Digitizer's parameters
88cb7938 582 Info("Print", "\n------------------- %s -------------", GetName() ) ;
583 if( strcmp(fEventFolderName.Data(), "") != 0 ){
584 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
585
586 Int_t nStreams ;
587 if (fManager)
588 nStreams = GetNInputStreams() ;
589 else
590 nStreams = fInput ;
591
592 Int_t index = 0 ;
593 for (index = 0 ; index < nStreams ; index++) {
594 TString tempo(fEventNames[index]) ;
595 tempo += index ;
596 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[index], tempo) ;
597 TString fileName( gime->GetSDigitsFileName() ) ;
598 if ( fEventNames[index] != AliConfig::fgkDefaultEventFolderName) // only if not the default folder name
599 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
600 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
601 }
602 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
603 printf("\nWriting digits to %s", gime->GetDigitsFileName().Data()) ;
604
605 printf("\nWith following parameters:\n") ;
606 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise ) ;
607 printf(" Threshold in EMC (fEMCDigitThreshold) = %f\n", fEMCDigitThreshold ) ;
608 printf(" Noise in CPV (fCPVNoise) = %f\n", fCPVNoise ) ;
609 printf(" Threshold in CPV (fCPVDigitThreshold) = %f\n",fCPVDigitThreshold ) ;
610 printf(" ---------------------------------------------------\n") ;
990119d6 611 }
8cb3533f 612 else
88cb7938 613 Info("Print", "AliPHOSDigitizer not initialized" ) ;
8cb3533f 614
615}
88cb7938 616
8cb3533f 617//__________________________________________________________________
21cd0c07 618 void AliPHOSDigitizer::PrintDigits(Option_t * option)
619{
3bf72d32 620 // Print a table of digits
21cd0c07 621
88cb7938 622 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
3bf72d32 623 TClonesArray * digits = gime->Digits() ;
624
88cb7938 625 Info("PrintDigits", "%d", digits->GetEntriesFast()) ;
626 printf("\nevent %d", gAlice->GetEvNumber()) ;
627 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
628
11f9c5ff 629
3bf72d32 630 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 631 //loop over digits
632 AliPHOSDigit * digit;
88cb7938 633 printf("\nEMC digits (with primaries):\n") ;
634 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 635 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 636 Int_t index ;
a6eedfad 637 for (index = 0 ; (index < digits->GetEntriesFast()) &&
88cb7938 638 (dynamic_cast<AliPHOSDigit *>(digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 639 digit = (AliPHOSDigit * ) digits->At(index) ;
21cd0c07 640 if(digit->GetNprimary() == 0)
641 continue;
81d5f731 642 printf("%6d %8d %6.5e %4d %2d :",
11f9c5ff 643 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
8cb3533f 644 Int_t iprimary;
21cd0c07 645 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 646 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 647 }
81d5f731 648 printf("\n") ;
21cd0c07 649 }
9688c1dd 650 }
3bf72d32 651
9688c1dd 652 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 653
9688c1dd 654 //loop over CPV digits
655 AliPHOSDigit * digit;
88cb7938 656 printf("\nCPV digits (with primaries):\n") ;
657 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 658 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
659 Int_t index ;
a6eedfad 660 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 661 digit = (AliPHOSDigit * ) digits->At(index) ;
662 if(digit->GetId() > maxEmc){
81d5f731 663 printf("%6d %8d %4d %2d :",
11f9c5ff 664 digit->GetId(), digit->GetAmp(), digit->GetIndexInList(), digit->GetNprimary()) ;
9688c1dd 665 Int_t iprimary;
21cd0c07 666 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 667 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 668 }
81d5f731 669 printf("\n") ;
21cd0c07 670 }
9688c1dd 671 }
8cb3533f 672 }
88cb7938 673
8cb3533f 674}
7b7c1533 675
9688c1dd 676//__________________________________________________________________
0bc3b8ed 677Float_t AliPHOSDigitizer::TimeOfNoise(void) const
9688c1dd 678{ // Calculates the time signal generated by noise
679 //to be rewritten, now returns just big number
680 return 1. ;
681
682}
7b7c1533 683
88cb7938 684//__________________________________________________________________
685void AliPHOSDigitizer::Unload()
686{
687
688 Int_t i ;
689 for(i = 1 ; i < fInput ; i++){
690 TString tempo(fEventNames[i]) ;
691 tempo += i ;
692 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[i], tempo) ;
693 gime->PhosLoader()->UnloadSDigits() ;
694 }
695
696 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
697 gime->PhosLoader()->UnloadDigits() ;
698}
699
7b7c1533 700//____________________________________________________________________________
90cceaf6 701void AliPHOSDigitizer::WriteDigits()
7b7c1533 702{
703
704 // Makes TreeD in the output file.
705 // Check if branch already exists:
706 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
707 // already existing branches.
708 // else creates branch with Digits, named "PHOS", title "...",
709 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
710 // and names of files, from which digits are made.
711
88cb7938 712 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
713 const TClonesArray * digits = gime->Digits() ;
714 TTree * treeD = gime->TreeD();
715
7b7c1533 716 // -- create Digits branch
717 Int_t bufferSize = 32000 ;
ba54256b 718 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
88cb7938 719 digitsBranch->SetTitle(fEventFolderName);
720 digitsBranch->Fill() ;
fbf811ec 721
88cb7938 722 gime->WriteDigits("OVERWRITE");
723 gime->WriteDigitizer("OVERWRITE");
724
725 Unload() ;
b3690abb 726
7b7c1533 727}