Version 1.49 and 1.48 merged
[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
18//_________________________________________________________________________
990119d6 19//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
20//////////////////////////////////////////////////////////////////////////////
a4e98857 21// This TTask performs digitization of Summable digits (in the PHOS case it is just
22// the sum of contributions from all primary particles into a given cell).
990119d6 23// In addition it performs mixing of summable digits from different events.
7b7c1533 24// The name of the TTask is also the title of the branch that will contain
25// the created SDigits
26// The title of the TTAsk is the name of the file that contains the hits from
27// which the SDigits are created
bca3b32a 28//
29// For each event two branches are created in TreeD:
30// "PHOS" - list of digits
31// "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
32//
a4e98857 33// Note, that one can set a title for new digits branch, and repeat digitization with
bca3b32a 34// another set of parameters.
35//
a4e98857 36// Use case:
990119d6 37// root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
38// root[1] d->ExecuteTask()
39// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
40// //Digitizes SDigitis in all events found in file galice.root
bca3b32a 41//
8cb3533f 42// root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
43// // Will read sdigits from galice1.root
44// root[3] d1->MixWith("galice2.root")
990119d6 45// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
a4e98857 46// // Reads another set of sdigits from galice2.root
8cb3533f 47// root[3] d1->MixWith("galice3.root")
a4e98857 48// // Reads another set of sdigits from galice3.root
8cb3533f 49// root[4] d->ExecuteTask("deb timing")
50// // Reads SDigits from files galice1.root, galice2.root ....
51// // mixes them and stores produced Digits in file galice1.root
52// // deb - prints number of produced digits
53// // deb all - prints list of produced digits
54// // timing - prints time used for digitization
990119d6 55//
990119d6 56
57// --- ROOT system ---
8cb3533f 58#include "TFile.h"
990119d6 59#include "TTree.h"
60#include "TSystem.h"
8cb3533f 61#include "TROOT.h"
62#include "TFolder.h"
63#include "TObjString.h"
64#include "TBenchmark.h"
ba54256b 65
990119d6 66// --- Standard library ---
8cb3533f 67#include <iomanip.h>
990119d6 68
69// --- AliRoot header files ---
70
8cb3533f 71#include "AliRun.h"
3f81a70b 72#include "AliRunDigitizer.h"
990119d6 73#include "AliPHOSDigit.h"
dd5c4038 74#include "AliPHOS.h"
7b7c1533 75#include "AliPHOSGetter.h"
990119d6 76#include "AliPHOSDigitizer.h"
77#include "AliPHOSSDigitizer.h"
8cb3533f 78#include "AliPHOSGeometry.h"
7437a0f7 79#include "AliPHOSTick.h"
990119d6 80
81ClassImp(AliPHOSDigitizer)
82
83
84//____________________________________________________________________________
3f81a70b 85 AliPHOSDigitizer::AliPHOSDigitizer()
990119d6 86{
87 // ctor
88
2bd5457f 89 fPinNoise = 0.01 ;
90 fEMCDigitThreshold = 0.01 ;
91 fCPVNoise = 0.01;
92 fCPVDigitThreshold = 0.09 ;
9688c1dd 93 fTimeResolution = 1.0e-9 ;
7437a0f7 94 fTimeSignalLength = 1.0e-9 ;
2b60655b 95 fDigitsInRun = 0 ;
3758d9fc 96 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
97 fADCpedestalEmc = 0.005 ; //
98 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
99
100 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
101 fADCpedestalCpv = 0.012 ; //
102 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
103
104 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
105 fARD = 0 ; // We work in the standalong mode
3f81a70b 106}
107
108//____________________________________________________________________________
109AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile,const char * name)
110{
111 // ctor
112 SetName(name) ;
113 SetTitle(headerFile) ;
3f81a70b 114 fARD = 0 ; // We work in the standalong mode
3f81a70b 115 Init() ;
116
990119d6 117}
118
990119d6 119//____________________________________________________________________________
3f81a70b 120AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard)
990119d6 121{
122 // ctor
3f81a70b 123 fARD = ard ;
124 SetName("Default");
125 SetTitle("aliroot") ;
2bd5457f 126 Init() ;
8cb3533f 127
990119d6 128}
129
130//____________________________________________________________________________
131 AliPHOSDigitizer::~AliPHOSDigitizer()
132{
133 // dtor
8cb3533f 134
8cb3533f 135
990119d6 136}
137
138//____________________________________________________________________________
7b7c1533 139void AliPHOSDigitizer::Digitize(const Int_t event)
a4e98857 140{
141
142 // Makes the digitization of the collected summable digits.
143 // It first creates the array of all PHOS modules
144 // filled with noise (different for EMC, CPV and PPSD) and
145 // then adds contributions from SDigits.
146 // This design avoids scanning over the list of digits to add
147 // contribution to new SDigits only.
990119d6 148
7b7c1533 149 if( strcmp(GetName(), "") == 0 )
8cb3533f 150 Init() ;
990119d6 151
7b7c1533 152 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
3f81a70b 153 TClonesArray * digits = gime->Digits(GetName()) ;
3758d9fc 154 AliPHOSSDigitizer * sdiz = gime->SDigitizer(GetName()) ;
7b7c1533 155
156 digits->Clear() ;
990119d6 157
7b7c1533 158 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 159
160 //Making digits with noise, first EMC
161 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
162
163 Int_t nCPV ;
990119d6 164 Int_t absID ;
165 TString name = geom->GetName() ;
166
9688c1dd 167 nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
168 geom->GetNModules() ;
8cb3533f 169
9688c1dd 170 digits->Expand(nCPV) ;
8cb3533f 171
7b7c1533 172
173 // sdigitize random gaussian noise and add it to all cells (EMCA+CPV+PPSD)
174 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
175 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
176 if ( !sDigitizer) {
177 cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
178 abort() ;
179 }
9688c1dd 180
7b7c1533 181 // loop through the sdigits posted to the White Board and add them to the noise
7a9d98f9 182 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
7b7c1533 183 TIter next(folderslist) ;
184 TFolder * folder = 0 ;
3f81a70b 185 TClonesArray * sdigits = 0 ;
186 Int_t input = 0 ;
9688c1dd 187 TObjArray * sdigArray = new TObjArray(2) ;
188 while ( (folder = (TFolder*)next()) )
3f81a70b 189 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
190 cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits "
191 << GetName() << " from " << folder->GetName() << endl ;
9688c1dd 192 sdigArray->AddAt(sdigits, input) ;
193 input++ ;
194 }
195
7a9d98f9 196 //Find the first crystall with signal
9688c1dd 197 Int_t nextSig = 200000 ;
198 Int_t i;
199 for(i=0; i<input; i++){
200 sdigits = (TClonesArray *)sdigArray->At(i) ;
7a9d98f9 201 //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ATTENTION !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
202 // if there are no SDigits in this event ===> Dmitri should check
203 if ( !sdigits->GetEntries() )
204 continue ;
9688c1dd 205 Int_t curNext = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
7a9d98f9 206 if(curNext < nextSig)
207 nextSig = curNext ;
9688c1dd 208 }
7437a0f7 209
7a9d98f9 210 cout << " AliPHOSDigitizer::Digitize 2" << endl ;
9688c1dd 211 TArrayI index(input) ;
212 index.Reset() ; //Set all indexes to zero
213
214 AliPHOSDigit * digit ;
215 AliPHOSDigit * curSDigit ;
216
7437a0f7 217 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
218
9688c1dd 219 //Put Noise contribution
220 for(absID = 1; absID <= nEMC; absID++){
221 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
222 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
223 //look if we have to add signal?
224 if(absID==nextSig){
225 //Add SDigits from all inputs
226 digit = (AliPHOSDigit *) digits->At(absID-1) ;
7437a0f7 227
228 ticks->Clear() ;
9688c1dd 229 Int_t contrib = 0 ;
7437a0f7 230 Float_t a = digit->GetAmp() ;
231 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
232 //Mark the beginnign of the signal
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);
236
9688c1dd 237 //loop over inputs
238 for(i=0; i<input; i++){
5c9dfca0 239 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
240 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
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 ;
247 if(fARD)
248 primaryoffset = fARD->GetMask(i) ;
249 else
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);
9688c1dd 257
258 *digit = *digit + *curSDigit ; //add energies
7437a0f7 259
9688c1dd 260 index[i]++ ;
5c9dfca0 261 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
262 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
263 else
264 curSDigit = 0 ;
9688c1dd 265 }
266 }
267
268 //calculate and set time
7437a0f7 269 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 270 digit->SetTime(time) ;
7437a0f7 271
9688c1dd 272 //Find next signal module
7437a0f7 273 nextSig = 200000 ;
9688c1dd 274 for(i=0; i<input; i++){
275 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
5c9dfca0 276 Int_t curNext = nextSig ;
277 if(sdigits->GetEntriesFast() > index[i] ){
278 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
279
280 }
9688c1dd 281 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 282 }
283 }
990119d6 284 }
3f81a70b 285
7437a0f7 286 ticks->Delete() ;
287 delete ticks ;
9688c1dd 288
289
290 //Now CPV digits (different noise and no timing)
291 for(absID = nEMC+1; absID <= nCPV; absID++){
292 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
293 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
294 //look if we have to add signal?
295 if(absID==nextSig){
296 digit = (AliPHOSDigit *) digits->At(absID-1) ;
297 //Add SDigits from all inputs
298 for(i=0; i<input; i++){
5c9dfca0 299 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
300 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
301 else
302 curSDigit = 0 ;
9688c1dd 303 //May be several digits will contribute from the same input
304 while(curSDigit && curSDigit->GetId() == absID){
305 //Shift primary to separate primaries belonging different inputs
306 Int_t primaryoffset ;
307 if(fARD)
308 primaryoffset = fARD->GetMask(i) ;
309 else
310 primaryoffset = 10000000*i ;
311 curSDigit->ShiftPrimary(primaryoffset) ;
312
313 //add energies
314 *digit = *digit + *curSDigit ;
315 index[i]++ ;
5c9dfca0 316 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
317 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
318 else
319 curSDigit = 0 ;
9688c1dd 320 }
321 }
322
323 //Find next signal module
324 for(i=0; i<input; i++){
325 sdigits = (TClonesArray *)sdigArray->At(i) ;
5c9dfca0 326 Int_t curNext = nextSig ;
327 if(sdigits->GetEntriesFast() > index[i] )
328 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
9688c1dd 329 if(curNext < nextSig) nextSig = curNext ;
330 }
331
332 }
333 }
9688c1dd 334 delete sdigArray ; //We should not delete its contents
335
336
337
990119d6 338 //remove digits below thresholds
339 for(absID = 0; absID < nEMC ; absID++)
7b7c1533 340 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(absID))->GetAmp()) < fEMCDigitThreshold)
341 digits->RemoveAt(absID) ;
342
990119d6 343 for(absID = nEMC; absID < nCPV ; absID++)
7b7c1533 344 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(absID))->GetAmp()) < fCPVDigitThreshold)
345 digits->RemoveAt(absID) ;
9688c1dd 346
7b7c1533 347 digits->Compress() ;
990119d6 348
7b7c1533 349 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 350 digits->Expand(ndigits) ;
990119d6 351
3758d9fc 352 //Set indexes in list of digits and make true digitization of the energy
990119d6 353 for (i = 0 ; i < ndigits ; i++) {
7b7c1533 354 AliPHOSDigit * digit = (AliPHOSDigit *) digits->At(i) ;
990119d6 355 digit->SetIndexInList(i) ;
3758d9fc 356 Float_t energy = sdiz->Calibrate(digit->GetAmp()) ;
357 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 358 }
990119d6 359
7b7c1533 360}
3758d9fc 361//____________________________________________________________________________
362Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
363{
364 Int_t chanel ;
365 if(absId <= fEmcCrystals){ //digitize as EMC
366 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
367 if(chanel > fNADCemc ) chanel = fNADCemc ;
368 }
369 else{ //Digitize as CPV
370 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
371 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
372 }
373 return chanel ;
374}
7b7c1533 375//____________________________________________________________________________
376void AliPHOSDigitizer::Exec(Option_t *option)
377{
378 // Managing method
990119d6 379
7b7c1533 380 if( strcmp(GetName(), "") == 0 )
381 Init() ;
8cb3533f 382
7b7c1533 383 if (strstr(option,"print")) {
384 Print("");
385 return ;
8cb3533f 386 }
990119d6 387
7b7c1533 388 if(strstr(option,"tim"))
389 gBenchmark->Start("PHOSDigitizer");
8cb3533f 390
3f81a70b 391 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
392
393 Int_t nevents ;
394
395 TTree * treeD ;
396
397 if(fARD){
398 treeD = fARD->GetTreeD() ;
399 nevents = 1 ; // Will process only one event
400 }
401 else {
402 gAlice->GetEvent(0) ;
403 nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
404 treeD=gAlice->TreeD() ;
405 }
406 if(treeD == 0 ){
407 cerr << " AliPHOSDigitizer :: Can not find TreeD " << endl ;
408 return ;
409 }
410
7b7c1533 411 //Check, if this branch already exits
3f81a70b 412 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
7b7c1533 413 TIter next(lob) ;
414 TBranch * branch = 0 ;
415 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
8cb3533f 416
7b7c1533 417 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
3f81a70b 418 if ( (strcmp(branch->GetName(), "PHOS")==0) &&
419 (strcmp(branch->GetTitle(), GetName())==0) )
7b7c1533 420 phosfound = kTRUE ;
8cb3533f 421
3f81a70b 422 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
423 (strcmp(branch->GetTitle(), GetName())==0) )
7b7c1533 424 digitizerfound = kTRUE ;
8cb3533f 425 }
990119d6 426
3f81a70b 427 if ( phosfound ) {
428 cerr << "WARNING: AliPHOSDigitizer -> Digits branch with name " << GetName()
429 << " already exits" << endl ;
430 return ;
431 }
432 if ( digitizerfound ) {
433 cerr << "WARNING: AliPHOSDigitizer -> Digitizer branch with name " << GetName()
7b7c1533 434 << " already exits" << endl ;
435 return ;
436 }
eec3ac52 437
7b7c1533 438 Int_t ievent ;
bca3b32a 439
7b7c1533 440 for(ievent = 0; ievent < nevents; ievent++){
3f81a70b 441
442 if(fARD){
443 Int_t input ;
444 for(input = 0 ; input < fARD->GetNinputs(); input ++){
445 TTree * treeS = fARD->GetInputTreeS(input) ;
446 if(!treeS){
447 cerr << "AliPHOSDigitizer -> No Input " << endl ;
448 return ;
449 }
450 gime->ReadTreeS(treeS,input) ;
451 }
452 }
453 else
454 gime->Event(ievent,"S") ;
990119d6 455
7b7c1533 456 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
3f81a70b 457
7b7c1533 458 WriteDigits(ievent) ;
3f81a70b 459
01a599c9 460 if(strstr(option,"deb"))
461 PrintDigits(option);
462 }
3f81a70b 463
8cb3533f 464 if(strstr(option,"tim")){
465 gBenchmark->Stop("PHOSDigitizer");
466 cout << "AliPHOSDigitizer:" << endl ;
ba54256b 467 cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for Digitizing "
468 << gBenchmark->GetCpuTime("PHOSDigitizer")/nevents << " seconds per event " << endl ;
8cb3533f 469 cout << endl ;
470 }
990119d6 471
472}
473
7b7c1533 474//____________________________________________________________________________
7437a0f7 475Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks)
9688c1dd 476{ //
7437a0f7 477 ticks->Sort() ; //Sort in accordance with times of ticks
478 TIter it(ticks) ;
479 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
480 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
481
482 AliPHOSTick * t ;
483 while((t=(AliPHOSTick*) it.Next())){
484 if(t->GetTime() < time) //This tick starts before crossing
485 *ctick+=*t ;
486 else
487 return time ;
488
489 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 490 }
491 return time ;
9688c1dd 492}
493//____________________________________________________________________________
3f81a70b 494Bool_t AliPHOSDigitizer::Init()
a4e98857 495{
3758d9fc 496 fPinNoise = 0.01 ;
497 fEMCDigitThreshold = 0.01 ;
498 fCPVNoise = 0.01;
499 fCPVDigitThreshold = 0.09 ;
500 fTimeResolution = 1.0e-9 ;
501 fTimeSignalLength = 1.0e-9 ;
502 fDigitsInRun = 0 ;
503 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
504 fADCpedestalEmc = 0.005 ; //
505 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
506
507 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
508 fADCpedestalCpv = 0.012 ; //
509 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
510
511 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
512
7b7c1533 513 // Makes all memory allocations
514 // Adds Digitizer task to the folder of PHOS tasks
3758d9fc 515
7b7c1533 516 //============================================================= YS
517 // The initialisation is now done by AliPHOSGetter
8cb3533f 518
7b7c1533 519 if( strcmp(GetTitle(), "") == 0 )
520 SetTitle("galice.root") ;
521
7b7c1533 522 // the SDigits name is stored by AliPHOSGetter as the name of the TClones Array
523 // //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/branchname and has branchTitle as title.
990119d6 524
7b7c1533 525 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
526 if ( gime == 0 ) {
527 cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
3f81a70b 528 return kFALSE;
7b7c1533 529 }
3758d9fc 530
531 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
532 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
3f81a70b 533
534 // create a folder on the white board //YSAlice/WhiteBoard/Digits/PHOS/headerFile/digitsTitle
535 gime->PostDigits(GetName() ) ;
7b7c1533 536
537 //add Task to //YSAlice/tasks/Digitizer/PHOS
3f81a70b 538 gime->PostDigitizer(this) ;
539
540 //Mark that we will use current header file
541 if(!fARD){
542 gime->PostSDigits(GetName(),GetTitle()) ;
543 gime->PostSDigitizer(GetName(),GetTitle()) ;
544 }
545 return kTRUE ;
990119d6 546}
7b7c1533 547
990119d6 548//__________________________________________________________________
7b7c1533 549void AliPHOSDigitizer::MixWith(const char* headerFile)
a4e98857 550{
ba54256b 551 // Allows to produce digits by superimposing background and signal event.
bca3b32a 552 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 553 // the constructor.
554 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
555 // Thus we avoid writing (changing) huge and expensive
bca3b32a 556 // backgound files: all output will be writen into SIGNAL, i.e.
557 // opened in constructor file.
558 //
a4e98857 559 // One can open as many files to mix with as one needs.
7b7c1533 560 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
561 // can be mixed.
bca3b32a 562
7b7c1533 563 if( strcmp(GetName(), "") == 0 )
8cb3533f 564 Init() ;
565
3f81a70b 566 if(fARD){
567 cout << "Can not use this method under AliRunDigitizer " << endl ;
568 return ;
569 }
7b7c1533 570
571 // check if the specified SDigits do not already exist on the White Board:
572 // //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/sDigitsTitle
990119d6 573
7b7c1533 574 TString path = "YSAlice/WhiteBoard/SDigits/PHOS/" ;
575 path += headerFile ;
576 path += "/" ;
3f81a70b 577 path += GetName() ;
7b7c1533 578 if ( gROOT->FindObjectAny(path.Data()) ) {
579 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
580 return;
990119d6 581 }
3f81a70b 582
583 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
584 gime->PostSDigits(GetName(),headerFile) ;
585
7b7c1533 586 // check if the requested file is already open or exist and if SDigits Branch exist
587 TFile * file = (TFile*)gROOT->FindObject(headerFile);
588 if ( !file ) {
589 file = new TFile(headerFile, "READ") ;
590 if (!file) {
591 cerr << "ERROR: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
592 return ;
593 }
594 }
3f81a70b 595
990119d6 596}
7b7c1533 597
990119d6 598//__________________________________________________________________
dd5c4038 599void AliPHOSDigitizer::Print(Option_t* option)const {
600 // Print Digitizer's parameters
7b7c1533 601 if( strcmp(GetName(), "") != 0 ){
8cb3533f 602
603 cout << "------------------- "<< GetName() << " -------------" << endl ;
604 cout << "Digitizing sDigits from file(s): " <<endl ;
7b7c1533 605
606 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("YSAlice/WhiteBoard/SDigits/PHOS"))->GetListOfFolders() ;
607 TIter next(folderslist) ;
608 TFolder * folder = 0 ;
609
610 while ( (folder = (TFolder*)next()) ) {
611 if ( folder->FindObject(GetName()) )
612 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
8cb3533f 613 }
614 cout << endl ;
7b7c1533 615 cout << "Writing digits to " << GetTitle() << endl ;
8cb3533f 616
617 cout << endl ;
618 cout << "With following parameters: " << endl ;
619 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
620 cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl ; ;
621 cout << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
622 cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
8cb3533f 623 cout << "---------------------------------------------------" << endl ;
990119d6 624 }
8cb3533f 625 else
626 cout << "AliPHOSDigitizer not initialized " << endl ;
627
628}
9688c1dd 629
8cb3533f 630//__________________________________________________________________
dd5c4038 631void AliPHOSDigitizer::PrintDigits(Option_t * option){
632 // Print a table of digits
a4e98857 633
7b7c1533 634 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
635 TClonesArray * digits = gime->Digits() ;
636
01a599c9 637 cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
7b7c1533 638 cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
990119d6 639 cout << endl ;
9688c1dd 640 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 641
642 //loop over digits
643 AliPHOSDigit * digit;
9688c1dd 644 cout << "Digit Id Amplitude Index " << " Nprim " << " Primaries list " << endl;
645 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 646 Int_t index ;
9688c1dd 647 for (index = 0 ; (index < digits->GetEntries()) &&
648 (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 649 digit = (AliPHOSDigit * ) digits->At(index) ;
9688c1dd 650 if(digit->GetNprimary() == 0) continue;
651 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
652 << setw(6) << digit->GetIndexInList() << " "
653 << setw(5) << digit->GetNprimary() <<" ";
8cb3533f 654
655 Int_t iprimary;
656 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
9688c1dd 657 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
8cb3533f 658 cout << endl;
9688c1dd 659 }
660 cout << endl;
661 }
662
663 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 664
9688c1dd 665 //loop over CPV digits
666 AliPHOSDigit * digit;
667 cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
668 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
669 Int_t index ;
670 for (index = 0 ; index < digits->GetEntries(); index++) {
671 digit = (AliPHOSDigit * ) digits->At(index) ;
672 if(digit->GetId() > maxEmc){
673 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
674 << setw(6) << digit->GetIndexInList() << " "
675 << setw(5) << digit->GetNprimary() <<" ";
676
677 Int_t iprimary;
678 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
679 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
680 cout << endl;
681 }
682 }
8cb3533f 683 }
9688c1dd 684
8cb3533f 685}
7b7c1533 686
8cb3533f 687//__________________________________________________________________
a4e98857 688void AliPHOSDigitizer::SetSDigitsBranch(const char* title)
689{
bca3b32a 690 // we set title (comment) of the SDigits branch in the first! header file
7b7c1533 691 if( strcmp(GetName(), "") == 0 )
692 Init() ;
990119d6 693
7b7c1533 694 AliPHOSGetter::GetInstance()->SDigits()->SetName(title) ;
695
8cb3533f 696}
9688c1dd 697//__________________________________________________________________
698Float_t AliPHOSDigitizer::TimeOfNoise(void)
699{ // Calculates the time signal generated by noise
700 //to be rewritten, now returns just big number
701 return 1. ;
702
703}
7b7c1533 704//____________________________________________________________________________
705void AliPHOSDigitizer::Reset()
706{
707 // sets current event number to the first simulated event
708
709 if( strcmp(GetName(), "") == 0 )
710 Init() ;
711
712 // Int_t inputs ;
713// for(inputs = 0; inputs < fNinputs ;inputs++)
714// fIevent->AddAt(-1, inputs ) ;
715
716}
717
718//____________________________________________________________________________
719void AliPHOSDigitizer::WriteDigits(Int_t event)
720{
721
722 // Makes TreeD in the output file.
723 // Check if branch already exists:
724 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
725 // already existing branches.
726 // else creates branch with Digits, named "PHOS", title "...",
727 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
728 // and names of files, from which digits are made.
729
730 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
3f81a70b 731 TClonesArray * digits = gime->Digits(GetName()) ;
ba54256b 732
3f81a70b 733 TTree * treeD ;
7b7c1533 734
3f81a70b 735 if(fARD)
736 treeD = fARD->GetTreeD() ;
737 else
738 treeD = gAlice->TreeD();
739
7b7c1533 740 // create new branches
741 // -- generate file name if necessary
742 char * file =0;
743 if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
744 file = new char[strlen(gAlice->GetBaseFile())+20] ;
745 sprintf(file,"%s/PHOS.Digits.root",gAlice->GetBaseFile()) ;
746 }
747
748 TDirectory *cwd = gDirectory;
7b7c1533 749 // -- create Digits branch
750 Int_t bufferSize = 32000 ;
ba54256b 751 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
7b7c1533 752 digitsBranch->SetTitle(GetName());
753 if (file) {
754 digitsBranch->SetFile(file);
755 TIter next( digitsBranch->GetListOfBranches());
756 TBranch * sbr ;
757 while ((sbr=(TBranch*)next())) {
758 sbr->SetFile(file);
759 }
760 cwd->cd();
761 }
762
763 // -- Create Digitizer branch
764 Int_t splitlevel = 0 ;
765 AliPHOSDigitizer * d = gime->Digitizer(GetName()) ;
ba54256b 766 TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
7b7c1533 767 digitizerBranch->SetTitle(GetName());
768 if (file) {
769 digitizerBranch->SetFile(file);
770 TIter next( digitizerBranch->GetListOfBranches());
771 TBranch * sbr;
772 while ((sbr=(TBranch*)next())) {
773 sbr->SetFile(file);
774 }
775 cwd->cd();
776 }
3f81a70b 777
7b7c1533 778 digitsBranch->Fill() ;
779 digitizerBranch->Fill() ;
780
ba54256b 781 treeD->Write(0,kOverwrite) ;
3f81a70b 782
7b7c1533 783}