Correct raw data fitting for digit amplitude in energy units. Coding conventions...
[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigitizer.cxx
CommitLineData
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
702ab87e 18/* History of cvs commits:
19 *
20 * $Log$
28871337 21 * Revision 1.88 2006/03/13 14:05:43 kharlov
22 * Calibration objects for EMC and CPV
23 *
fc6706cb 24 * Revision 1.87 2005/08/24 15:33:49 kharlov
25 * Calibration data for raw digits
26 *
a8ec0771 27 * Revision 1.86 2005/07/12 20:07:35 hristov
28 * Changes needed to run simulation and reconstrruction in the same AliRoot session
29 *
7c193632 30 * Revision 1.85 2005/05/28 14:19:04 schutz
31 * Compilation warnings fixed by T.P.
32 *
702ab87e 33 */
88cb7938 34
990119d6 35//_________________________________________________________________________
990119d6 36//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
37//////////////////////////////////////////////////////////////////////////////
a4e98857 38// This TTask performs digitization of Summable digits (in the PHOS case it is just
39// the sum of contributions from all primary particles into a given cell).
990119d6 40// In addition it performs mixing of summable digits from different events.
7b7c1533 41// The name of the TTask is also the title of the branch that will contain
42// the created SDigits
43// The title of the TTAsk is the name of the file that contains the hits from
44// which the SDigits are created
bca3b32a 45//
46// For each event two branches are created in TreeD:
47// "PHOS" - list of digits
48// "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
49//
a4e98857 50// Note, that one can set a title for new digits branch, and repeat digitization with
bca3b32a 51// another set of parameters.
52//
a4e98857 53// Use case:
990119d6 54// root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
55// root[1] d->ExecuteTask()
56// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
57// //Digitizes SDigitis in all events found in file galice.root
bca3b32a 58//
8cb3533f 59// root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
60// // Will read sdigits from galice1.root
61// root[3] d1->MixWith("galice2.root")
990119d6 62// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
a4e98857 63// // Reads another set of sdigits from galice2.root
8cb3533f 64// root[3] d1->MixWith("galice3.root")
a4e98857 65// // Reads another set of sdigits from galice3.root
8cb3533f 66// root[4] d->ExecuteTask("deb timing")
67// // Reads SDigits from files galice1.root, galice2.root ....
68// // mixes them and stores produced Digits in file galice1.root
69// // deb - prints number of produced digits
70// // deb all - prints list of produced digits
71// // timing - prints time used for digitization
990119d6 72//
990119d6 73
74// --- ROOT system ---
990119d6 75#include "TTree.h"
76#include "TSystem.h"
8cb3533f 77#include "TBenchmark.h"
e957fea8 78#include "TRandom.h"
ba54256b 79
990119d6 80// --- Standard library ---
81
82// --- AliRoot header files ---
351dd634 83#include "AliLog.h"
3f81a70b 84#include "AliRunDigitizer.h"
990119d6 85#include "AliPHOSDigit.h"
7b7c1533 86#include "AliPHOSGetter.h"
990119d6 87#include "AliPHOSDigitizer.h"
88#include "AliPHOSSDigitizer.h"
8cb3533f 89#include "AliPHOSGeometry.h"
7437a0f7 90#include "AliPHOSTick.h"
990119d6 91
92ClassImp(AliPHOSDigitizer)
93
94
95//____________________________________________________________________________
88cb7938 96 AliPHOSDigitizer::AliPHOSDigitizer():AliDigitizer("",""),
97 fInput(0),
98 fInputFileNames(0x0),
99 fEventNames(0x0)
990119d6 100{
101 // ctor
8d0f3f77 102 InitParameters() ;
9bd3caba 103 fDefaultInit = kTRUE ;
fbf811ec 104 fManager = 0 ; // We work in the standalong mode
88cb7938 105 fEventFolderName = "" ;
106}
3f81a70b 107
108//____________________________________________________________________________
e191bb57 109AliPHOSDigitizer::AliPHOSDigitizer(TString alirunFileName,
110 TString eventFolderName):
111 AliDigitizer("PHOS"+AliConfig::Instance()->GetDigitizerTaskName(),
112 alirunFileName),
88cb7938 113 fInputFileNames(0), fEventNames(0), fEventFolderName(eventFolderName)
3f81a70b 114{
115 // ctor
8d0f3f77 116 InitParameters() ;
3f81a70b 117 Init() ;
92f521a9 118 fDefaultInit = kFALSE ;
88cb7938 119 fManager = 0 ; // We work in the standalong mode
120}
121
122//____________________________________________________________________________
123AliPHOSDigitizer::AliPHOSDigitizer(const AliPHOSDigitizer & d)
a8c47ab6 124 : AliDigitizer(d)
88cb7938 125{
126 // copyy ctor
127
128 SetName(d.GetName()) ;
129 SetTitle(d.GetTitle()) ;
130 fPinNoise = d.fPinNoise ;
131 fEMCDigitThreshold = d.fEMCDigitThreshold ;
132 fCPVNoise = d.fCPVNoise ;
133 fCPVDigitThreshold = d.fCPVDigitThreshold ;
134 fTimeResolution = d.fTimeResolution ;
135 fTimeThreshold = d.fTimeThreshold ;
136 fTimeSignalLength = d.fTimeSignalLength ;
137 fADCchanelEmc = d.fADCchanelEmc ;
138 fADCpedestalEmc = d.fADCpedestalEmc ;
139 fNADCemc = d.fNADCemc ;
140 fADCchanelCpv = d.fADCchanelCpv ;
141 fADCpedestalCpv = d.fADCpedestalCpv ;
142 fNADCcpv = d.fNADCcpv ;
143 fEventFolderName = d.fEventFolderName;
990119d6 144}
145
990119d6 146//____________________________________________________________________________
88cb7938 147AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * rd):
e191bb57 148 AliDigitizer(rd,"PHOS"+AliConfig::Instance()->GetDigitizerTaskName()),
88cb7938 149 fEventFolderName(0)
990119d6 150{
45fa49ca 151 // ctor Init() is called by RunDigitizer
88cb7938 152 fManager = rd ;
8da7719d 153 fEventFolderName = fManager->GetInputFolderName(0) ;
88cb7938 154 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
b22e4735 155 InitParameters() ;
fbf811ec 156 fDefaultInit = kFALSE ;
990119d6 157}
158
159//____________________________________________________________________________
160 AliPHOSDigitizer::~AliPHOSDigitizer()
161{
7c193632 162 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ;
163
164 // Clean Digitizer from the white board
165 gime->PhosLoader()->CleanDigitizer() ;
990119d6 166 // dtor
88cb7938 167 delete [] fInputFileNames ;
168 delete [] fEventNames ;
169
990119d6 170}
171
172//____________________________________________________________________________
fc7e2f43 173void AliPHOSDigitizer::Digitize(Int_t event)
a4e98857 174{
175
176 // Makes the digitization of the collected summable digits.
177 // It first creates the array of all PHOS modules
dc986a1d 178 // filled with noise (different for EMC, and CPV) and
a4e98857 179 // then adds contributions from SDigits.
180 // This design avoids scanning over the list of digits to add
181 // contribution to new SDigits only.
990119d6 182
f98c06a1 183 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ;
45fa49ca 184 Int_t ReadEvent = event ;
185 if (fManager)
186 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ;
351dd634 187 AliInfo(Form("Adding event %d from input stream 0 %s %s",
188 ReadEvent, GetTitle(), fEventFolderName.Data())) ;
45fa49ca 189 gime->Event(ReadEvent, "S") ;
88cb7938 190 TClonesArray * digits = gime->Digits() ;
7b7c1533 191 digits->Clear() ;
990119d6 192
7b7c1533 193 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 194 //Making digits with noise, first EMC
195 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
196
197 Int_t nCPV ;
990119d6 198 Int_t absID ;
990119d6 199
88cb7938 200 nCPV = nEMC + geom->GetNumberOfCPVPadsZ() * geom->GetNumberOfCPVPadsPhi() * geom->GetNModules() ;
201
9688c1dd 202 digits->Expand(nCPV) ;
8cb3533f 203
88cb7938 204 // get first the sdigitizer from the tasks list
205 if ( !gime->SDigitizer() )
206 gime->LoadSDigitizer();
207 AliPHOSSDigitizer * sDigitizer = gime->SDigitizer();
208
209 if ( !sDigitizer )
351dd634 210 AliFatal(Form("SDigitizer with name %s %s not found",
211 GetTitle(), fEventFolderName.Data() )) ;
88cb7938 212
213 //take all the inputs to add together and load the SDigits
214 TObjArray * sdigArray = new TObjArray(fInput) ;
215 sdigArray->AddAt(gime->SDigits(), 0) ;
216 Int_t i ;
217 for(i = 1 ; i < fInput ; i++){
218 TString tempo(fEventNames[i]) ;
219 tempo += i ;
45fa49ca 220 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[i], tempo) ;
221 if (fManager)
222 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
351dd634 223 AliInfo(Form("Adding event %d from input stream %d %s %s",
224 ReadEvent, i, fInputFileNames[i].Data(), tempo.Data())) ;
45fa49ca 225 gime->Event(ReadEvent,"S");
88cb7938 226 sdigArray->AddAt(gime->SDigits(), i) ;
38bb0fd5 227 }
9688c1dd 228
7a9d98f9 229 //Find the first crystall with signal
9688c1dd 230 Int_t nextSig = 200000 ;
88cb7938 231 TClonesArray * sdigits ;
232 for(i = 0 ; i < fInput ; i++){
233 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
a6eedfad 234 if ( !sdigits->GetEntriesFast() )
7a9d98f9 235 continue ;
88cb7938 236 Int_t curNext = dynamic_cast<AliPHOSDigit *>(sdigits->At(0))->GetId() ;
237 if(curNext < nextSig)
238 nextSig = curNext ;
9688c1dd 239 }
88cb7938 240
241 TArrayI index(fInput) ;
9688c1dd 242 index.Reset() ; //Set all indexes to zero
88cb7938 243
9688c1dd 244 AliPHOSDigit * digit ;
245 AliPHOSDigit * curSDigit ;
88cb7938 246
7437a0f7 247 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
88cb7938 248
9688c1dd 249 //Put Noise contribution
88cb7938 250 for(absID = 1 ; absID <= nEMC ; absID++){
9688c1dd 251 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
88cb7938 252 new((*digits)[absID-1]) AliPHOSDigit( -1, absID, sDigitizer->Digitize(noise), TimeOfNoise() ) ;
9688c1dd 253 //look if we have to add signal?
88cb7938 254 digit = dynamic_cast<AliPHOSDigit *>(digits->At(absID-1)) ;
255
9688c1dd 256 if(absID==nextSig){
257 //Add SDigits from all inputs
7437a0f7 258 ticks->Clear() ;
9688c1dd 259 Int_t contrib = 0 ;
7437a0f7 260 Float_t a = digit->GetAmp() ;
88cb7938 261 Float_t b = TMath::Abs( a / fTimeSignalLength) ;
262 //Mark the beginning of the signal
7437a0f7 263 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
264 //Mark the end of the ignal
265 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
88cb7938 266
9688c1dd 267 //loop over inputs
88cb7938 268 for(i = 0 ; i < fInput ; i++){
269 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
270 curSDigit = dynamic_cast<AliPHOSDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 271 else
272 curSDigit = 0 ;
9688c1dd 273 //May be several digits will contribute from the same input
274 while(curSDigit && curSDigit->GetId() == absID){
275 //Shift primary to separate primaries belonging different inputs
276 Int_t primaryoffset ;
9891b76e 277 if(fManager)
278 primaryoffset = fManager->GetMask(i) ;
9688c1dd 279 else
21c293b7 280 primaryoffset = 10000000*i ;
281 curSDigit->ShiftPrimary(primaryoffset) ;
7437a0f7 282
283 a = curSDigit->GetAmp() ;
284 b = a /fTimeSignalLength ;
285 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
286 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
88cb7938 287
9688c1dd 288 *digit = *digit + *curSDigit ; //add energies
88cb7938 289
9688c1dd 290 index[i]++ ;
88cb7938 291 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
292 curSDigit = dynamic_cast<AliPHOSDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 293 else
294 curSDigit = 0 ;
9688c1dd 295 }
296 }
88cb7938 297
9688c1dd 298 //calculate and set time
7437a0f7 299 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 300 digit->SetTime(time) ;
88cb7938 301
9688c1dd 302 //Find next signal module
7437a0f7 303 nextSig = 200000 ;
88cb7938 304 for(i = 0 ; i < fInput ; i++){
305 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
5c9dfca0 306 Int_t curNext = nextSig ;
307 if(sdigits->GetEntriesFast() > index[i] ){
88cb7938 308 curNext = dynamic_cast<AliPHOSDigit *>(sdigits->At(index[i]))->GetId() ;
5c9dfca0 309 }
9688c1dd 310 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 311 }
312 }
990119d6 313 }
3f81a70b 314
7437a0f7 315 ticks->Delete() ;
316 delete ticks ;
88cb7938 317
9688c1dd 318 //Now CPV digits (different noise and no timing)
319 for(absID = nEMC+1; absID <= nCPV; absID++){
320 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
321 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
322 //look if we have to add signal?
323 if(absID==nextSig){
88cb7938 324 digit = dynamic_cast<AliPHOSDigit *>(digits->At(absID-1)) ;
9688c1dd 325 //Add SDigits from all inputs
88cb7938 326 for(i = 0 ; i < fInput ; i++){
327 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
328 curSDigit = dynamic_cast<AliPHOSDigit*>( dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
5c9dfca0 329 else
330 curSDigit = 0 ;
a6eedfad 331
9688c1dd 332 //May be several digits will contribute from the same input
333 while(curSDigit && curSDigit->GetId() == absID){
334 //Shift primary to separate primaries belonging different inputs
335 Int_t primaryoffset ;
9891b76e 336 if(fManager)
337 primaryoffset = fManager->GetMask(i) ;
9688c1dd 338 else
339 primaryoffset = 10000000*i ;
340 curSDigit->ShiftPrimary(primaryoffset) ;
341
342 //add energies
343 *digit = *digit + *curSDigit ;
344 index[i]++ ;
88cb7938 345 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
346 curSDigit = dynamic_cast<AliPHOSDigit*>( dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i]) ) ;
5c9dfca0 347 else
348 curSDigit = 0 ;
9688c1dd 349 }
350 }
a6eedfad 351
9688c1dd 352 //Find next signal module
a6eedfad 353 nextSig = 200000 ;
88cb7938 354 for(i = 0 ; i < fInput ; i++){
355 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
5c9dfca0 356 Int_t curNext = nextSig ;
357 if(sdigits->GetEntriesFast() > index[i] )
88cb7938 358 curNext = dynamic_cast<AliPHOSDigit *>( sdigits->At(index[i]) )->GetId() ;
9688c1dd 359 if(curNext < nextSig) nextSig = curNext ;
360 }
361
362 }
363 }
88cb7938 364
365 delete sdigArray ; //We should not delete its contents
9688c1dd 366
990119d6 367 //remove digits below thresholds
88cb7938 368 for(i = 0 ; i < nEMC ; i++){
548f0134 369 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
aaf8a71c 370 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
a6eedfad 371 digits->RemoveAt(i) ;
aaf8a71c 372 else
373 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
374 }
375
a6eedfad 376
377 for(i = nEMC; i < nCPV ; i++)
88cb7938 378 if( sDigitizer->Calibrate( dynamic_cast<AliPHOSDigit*>(digits->At(i))->GetAmp() ) < fCPVDigitThreshold )
a6eedfad 379 digits->RemoveAt(i) ;
9688c1dd 380
7b7c1533 381 digits->Compress() ;
990119d6 382
7b7c1533 383 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 384 digits->Expand(ndigits) ;
990119d6 385
3758d9fc 386 //Set indexes in list of digits and make true digitization of the energy
990119d6 387 for (i = 0 ; i < ndigits ; i++) {
548f0134 388 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
990119d6 389 digit->SetIndexInList(i) ;
f672adc8 390 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
3758d9fc 391 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 392 }
7b7c1533 393}
548f0134 394
3758d9fc 395//____________________________________________________________________________
396Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
397{
0bc3b8ed 398 // Returns digitized value of the energy in a cell absId
399
a8ec0771 400 AliPHOSGetter* gime = AliPHOSGetter::Instance();
401
fc6706cb 402 if(!gime->CalibData()) {
28871337 403 //AliPHOSCalibData* cdb = new AliPHOSCalibData(gAlice->GetRunNumber()); // original
404 AliPHOSCalibData* cdb = new AliPHOSCalibData(-1); // use AliCDBManager's run number
fc6706cb 405 gime->SetCalibData(cdb);
406 }
407
a8ec0771 408 //Determine rel.position of the cell absId
409 Int_t relId[4];
410 gime->PHOSGeometry()->AbsToRelNumbering(absId,relId);
411 Int_t module=relId[0];
412 Int_t raw=relId[2];
413 Int_t column=relId[3];
414
3758d9fc 415 Int_t chanel ;
a8ec0771 416
3758d9fc 417 if(absId <= fEmcCrystals){ //digitize as EMC
a8ec0771 418
419 //reading calibration data for cell absId.
420 //If no calibration DB found, accept default values.
421
422 if(gime->CalibData()) {
423 fADCpedestalEmc = gime->CalibData()->GetADCpedestalEmc(module,column,raw);
424 fADCchanelEmc = gime->CalibData()->GetADCchannelEmc(module,column,raw);
425 }
426// printf("\t\tabsId %d ==>>module=%d column=%d raw=%d ped=%.4f gain=%.4f\n",
427// absId,module,column,raw,fADCpedestalEmc,fADCchanelEmc);
428
3758d9fc 429 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
430 if(chanel > fNADCemc ) chanel = fNADCemc ;
431 }
432 else{ //Digitize as CPV
fc6706cb 433 if(gime->CalibData()) {
434 fADCpedestalCpv = gime->CalibData()->GetADCpedestalCpv(module,column,raw);
435 fADCchanelCpv = gime->CalibData()->GetADCchannelCpv(module,column,raw);
436 }
437
3758d9fc 438 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
439 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
440 }
441 return chanel ;
442}
548f0134 443
7b7c1533 444//____________________________________________________________________________
445void AliPHOSDigitizer::Exec(Option_t *option)
446{
212d1c0f 447 // Steering method to process digitization for events
448 // in the range from fFirstEvent to fLastEvent.
449 // This range is optionally set by SetEventRange().
45fa49ca 450 // if fLastEvent=-1, then process events until the end.
451 // by default fLastEvent = fFirstEvent (process only one event)
88cb7938 452
453 if (!fInit) { // to prevent overwrite existing file
351dd634 454 AliError(Form("Give a version name different from %s",
455 fEventFolderName.Data() )) ;
88cb7938 456 return ;
457 }
990119d6 458
7b7c1533 459 if (strstr(option,"print")) {
88cb7938 460 Print();
7b7c1533 461 return ;
8cb3533f 462 }
990119d6 463
7b7c1533 464 if(strstr(option,"tim"))
465 gBenchmark->Start("PHOSDigitizer");
3f81a70b 466
fb43ada4 467 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ;
88cb7938 468
5b4d2c50 469 // Post Digitizer to the white board
470 gime->PostDigitizer(this) ;
471
212d1c0f 472 if (fLastEvent == -1)
473 fLastEvent = gime->MaxEvent() - 1 ;
396a348e 474 else if (fManager)
475 fLastEvent = fFirstEvent ;
45fa49ca 476
212d1c0f 477 Int_t nEvents = fLastEvent - fFirstEvent + 1;
478
7b7c1533 479 Int_t ievent ;
88cb7938 480
212d1c0f 481 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
88cb7938 482
483 gime->Event(ievent,"S") ;
b22e4735 484
7b7c1533 485 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
88cb7938 486
90cceaf6 487 WriteDigits() ;
88cb7938 488
01a599c9 489 if(strstr(option,"deb"))
490 PrintDigits(option);
94de8339 491
492 //increment the total number of Digits per run
493 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
88cb7938 494 }
495
5b4d2c50 496 gime->PhosLoader()->CleanDigitizer();
497
8cb3533f 498 if(strstr(option,"tim")){
499 gBenchmark->Stop("PHOSDigitizer");
21cd0c07 500 TString message ;
501 message = " took %f seconds for Digitizing %f seconds per event\n" ;
351dd634 502 AliInfo(Form( message.Data(),
21cd0c07 503 gBenchmark->GetCpuTime("PHOSDigitizer"),
351dd634 504 gBenchmark->GetCpuTime("PHOSDigitizer")/nEvents ));
21cd0c07 505 }
990119d6 506}
507
9688c1dd 508//____________________________________________________________________________
0bc3b8ed 509Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks) const
510{
511 // Returns the shortest time among all time ticks
512
7437a0f7 513 ticks->Sort() ; //Sort in accordance with times of ticks
514 TIter it(ticks) ;
515 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
516 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
517
518 AliPHOSTick * t ;
519 while((t=(AliPHOSTick*) it.Next())){
520 if(t->GetTime() < time) //This tick starts before crossing
521 *ctick+=*t ;
522 else
523 return time ;
524
525 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 526 }
527 return time ;
9688c1dd 528}
8d0f3f77 529
7b7c1533 530//____________________________________________________________________________
3f81a70b 531Bool_t AliPHOSDigitizer::Init()
8d0f3f77 532{
fbf811ec 533 // Makes all memory allocations
88cb7938 534 fInit = kTRUE ;
535 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
8d0f3f77 536 if ( gime == 0 ) {
351dd634 537 AliFatal(Form("Could not obtain the Getter object for file %s and event %s !",
538 GetTitle(), fEventFolderName.Data()));
8d0f3f77 539 return kFALSE;
540 }
541
542 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
b22e4735 543
88cb7938 544 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
8d0f3f77 545
88cb7938 546 TString opt("Digits") ;
547 if(gime->VersionExists(opt) ) {
351dd634 548 AliError(Form("Give a version name different from %s",
549 fEventFolderName.Data() )) ;
88cb7938 550 fInit = kFALSE ;
551 }
552
45fa49ca 553 fFirstEvent = 0 ;
554 fLastEvent = fFirstEvent ;
88cb7938 555 if (fManager)
556 fInput = fManager->GetNinputs() ;
557 else
558 fInput = 1 ;
559
560 fInputFileNames = new TString[fInput] ;
561 fEventNames = new TString[fInput] ;
562 fInputFileNames[0] = GetTitle() ;
563 fEventNames[0] = fEventFolderName.Data() ;
564 Int_t index ;
565 for (index = 1 ; index < fInput ; index++) {
566 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
567 TString tempo = fManager->GetInputFolderName(index) ;
45fa49ca 568 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added by fManager
8d0f3f77 569 }
88cb7938 570
571 //to prevent cleaning of this object while GetEvent is called
572 gime->PhosLoader()->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
573
574 return fInit ;
8d0f3f77 575}
576
577//____________________________________________________________________________
578void AliPHOSDigitizer::InitParameters()
a4e98857 579{
45fa49ca 580 // Set initial parameters Digitizer
0bc3b8ed 581
c74936f1 582 fPinNoise = 0.004 ;
583 fEMCDigitThreshold = 0.012 ;
3758d9fc 584 fCPVNoise = 0.01;
585 fCPVDigitThreshold = 0.09 ;
aaf8a71c 586 fTimeResolution = 0.5e-9 ;
3758d9fc 587 fTimeSignalLength = 1.0e-9 ;
588 fDigitsInRun = 0 ;
589 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
590 fADCpedestalEmc = 0.005 ; //
591 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
592
593 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
594 fADCpedestalCpv = 0.012 ; //
595 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
596
597 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
212d1c0f 598 SetEventRange(0,-1) ;
8cb3533f 599
990119d6 600}
7b7c1533 601
990119d6 602//__________________________________________________________________
fc7e2f43 603void AliPHOSDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
a4e98857 604{
ba54256b 605 // Allows to produce digits by superimposing background and signal event.
bca3b32a 606 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 607 // the constructor.
608 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
609 // Thus we avoid writing (changing) huge and expensive
bca3b32a 610 // backgound files: all output will be writen into SIGNAL, i.e.
611 // opened in constructor file.
612 //
a4e98857 613 // One can open as many files to mix with as one needs.
7b7c1533 614 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
615 // can be mixed.
bca3b32a 616
88cb7938 617 if( strcmp(fEventFolderName, "") == 0 )
8cb3533f 618 Init() ;
619
9891b76e 620 if(fManager){
88cb7938 621 Warning("MixWith", "Cannot use this method with AliRunDigitizer\n" ) ;
3f81a70b 622 return ;
623 }
88cb7938 624 // looking for file which contains AliRun
625 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
351dd634 626 AliError(Form("File %s does not exist!", alirunFileName.Data())) ;
88cb7938 627 return ;
990119d6 628 }
88cb7938 629 // looking for the file which contains SDigits
630 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
631 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 632 if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 633 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
634 if ( (gSystem->AccessPathName(fileName)) ) {
351dd634 635 AliError(Form("The file %s does not exist!", fileName.Data())) ;
88cb7938 636 return ;
7b7c1533 637 }
88cb7938 638 // need to increase the arrays
639 TString tempo = fInputFileNames[fInput-1] ;
640 delete [] fInputFileNames ;
641 fInputFileNames = new TString[fInput+1] ;
642 fInputFileNames[fInput-1] = tempo ;
643
644 tempo = fEventNames[fInput-1] ;
645 delete [] fEventNames ;
646 fEventNames = new TString[fInput+1] ;
647 fEventNames[fInput-1] = tempo ;
648
649 fInputFileNames[fInput] = alirunFileName ;
650 fEventNames[fInput] = eventFolderName ;
651 fInput++ ;
990119d6 652}
7b7c1533 653
990119d6 654//__________________________________________________________________
702ab87e 655void AliPHOSDigitizer::Print(const Option_t *)const
21cd0c07 656{
dd5c4038 657 // Print Digitizer's parameters
351dd634 658 AliInfo(Form("\n------------------- %s -------------", GetName() )) ;
88cb7938 659 if( strcmp(fEventFolderName.Data(), "") != 0 ){
660 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
661
662 Int_t nStreams ;
663 if (fManager)
664 nStreams = GetNInputStreams() ;
665 else
666 nStreams = fInput ;
667
668 Int_t index = 0 ;
669 for (index = 0 ; index < nStreams ; index++) {
670 TString tempo(fEventNames[index]) ;
671 tempo += index ;
672 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[index], tempo) ;
673 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 674 if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 675 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
676 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
677 }
678 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
679 printf("\nWriting digits to %s", gime->GetDigitsFileName().Data()) ;
680
681 printf("\nWith following parameters:\n") ;
682 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise ) ;
683 printf(" Threshold in EMC (fEMCDigitThreshold) = %f\n", fEMCDigitThreshold ) ;
684 printf(" Noise in CPV (fCPVNoise) = %f\n", fCPVNoise ) ;
685 printf(" Threshold in CPV (fCPVDigitThreshold) = %f\n",fCPVDigitThreshold ) ;
686 printf(" ---------------------------------------------------\n") ;
990119d6 687 }
8cb3533f 688 else
351dd634 689 AliInfo(Form("AliPHOSDigitizer not initialized" )) ;
8cb3533f 690
691}
88cb7938 692
8cb3533f 693//__________________________________________________________________
21cd0c07 694 void AliPHOSDigitizer::PrintDigits(Option_t * option)
695{
3bf72d32 696 // Print a table of digits
21cd0c07 697
88cb7938 698 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
3bf72d32 699 TClonesArray * digits = gime->Digits() ;
700
351dd634 701 AliInfo(Form("%d", digits->GetEntriesFast())) ;
88cb7938 702 printf("\nevent %d", gAlice->GetEvNumber()) ;
703 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
704
11f9c5ff 705
3bf72d32 706 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 707 //loop over digits
708 AliPHOSDigit * digit;
88cb7938 709 printf("\nEMC digits (with primaries):\n") ;
710 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 711 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 712 Int_t index ;
a6eedfad 713 for (index = 0 ; (index < digits->GetEntriesFast()) &&
88cb7938 714 (dynamic_cast<AliPHOSDigit *>(digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 715 digit = (AliPHOSDigit * ) digits->At(index) ;
21cd0c07 716 if(digit->GetNprimary() == 0)
717 continue;
81d5f731 718 printf("%6d %8d %6.5e %4d %2d :",
11f9c5ff 719 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
8cb3533f 720 Int_t iprimary;
21cd0c07 721 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 722 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 723 }
81d5f731 724 printf("\n") ;
21cd0c07 725 }
9688c1dd 726 }
3bf72d32 727
9688c1dd 728 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 729
9688c1dd 730 //loop over CPV digits
731 AliPHOSDigit * digit;
88cb7938 732 printf("\nCPV digits (with primaries):\n") ;
733 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
9688c1dd 734 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
735 Int_t index ;
a6eedfad 736 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 737 digit = (AliPHOSDigit * ) digits->At(index) ;
738 if(digit->GetId() > maxEmc){
81d5f731 739 printf("%6d %8d %4d %2d :",
11f9c5ff 740 digit->GetId(), digit->GetAmp(), digit->GetIndexInList(), digit->GetNprimary()) ;
9688c1dd 741 Int_t iprimary;
21cd0c07 742 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 743 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
21cd0c07 744 }
81d5f731 745 printf("\n") ;
21cd0c07 746 }
9688c1dd 747 }
8cb3533f 748 }
88cb7938 749
8cb3533f 750}
7b7c1533 751
9688c1dd 752//__________________________________________________________________
0bc3b8ed 753Float_t AliPHOSDigitizer::TimeOfNoise(void) const
9688c1dd 754{ // Calculates the time signal generated by noise
26a2ef9d 755 //PH Info("TimeOfNoise", "Change me") ;
04f0bda3 756 return gRandom->Rndm() * 1.28E-5;
8cb3533f 757}
7b7c1533 758
88cb7938 759//__________________________________________________________________
760void AliPHOSDigitizer::Unload()
761{
762
763 Int_t i ;
764 for(i = 1 ; i < fInput ; i++){
765 TString tempo(fEventNames[i]) ;
766 tempo += i ;
767 AliPHOSGetter * gime = AliPHOSGetter::Instance(fInputFileNames[i], tempo) ;
768 gime->PhosLoader()->UnloadSDigits() ;
769 }
770
771 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName) ;
772 gime->PhosLoader()->UnloadDigits() ;
773}
774
7b7c1533 775//____________________________________________________________________________
90cceaf6 776void AliPHOSDigitizer::WriteDigits()
7b7c1533 777{
778
779 // Makes TreeD in the output file.
780 // Check if branch already exists:
781 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
782 // already existing branches.
783 // else creates branch with Digits, named "PHOS", title "...",
784 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
785 // and names of files, from which digits are made.
786
f98c06a1 787 AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ;
88cb7938 788 const TClonesArray * digits = gime->Digits() ;
789 TTree * treeD = gime->TreeD();
790
7b7c1533 791 // -- create Digits branch
792 Int_t bufferSize = 32000 ;
2524c56f 793 TBranch * digitsBranch = treeD->Branch("PHOS","TClonesArray",&digits,bufferSize);
88cb7938 794 digitsBranch->SetTitle(fEventFolderName);
795 digitsBranch->Fill() ;
fbf811ec 796
88cb7938 797 gime->WriteDigits("OVERWRITE");
798 gime->WriteDigitizer("OVERWRITE");
799
800 Unload() ;
b3690abb 801
7b7c1533 802}