change fMaxiparent to 150
[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"
b3690abb 64#include "TGeometry.h"
8cb3533f 65#include "TBenchmark.h"
ba54256b 66
990119d6 67// --- Standard library ---
8cb3533f 68#include <iomanip.h>
990119d6 69
70// --- AliRoot header files ---
8cb3533f 71#include "AliRun.h"
b3690abb 72#include "AliHeader.h"
ea5f3389 73#include "AliStream.h"
3f81a70b 74#include "AliRunDigitizer.h"
990119d6 75#include "AliPHOSDigit.h"
dd5c4038 76#include "AliPHOS.h"
7b7c1533 77#include "AliPHOSGetter.h"
990119d6 78#include "AliPHOSDigitizer.h"
79#include "AliPHOSSDigitizer.h"
8cb3533f 80#include "AliPHOSGeometry.h"
7437a0f7 81#include "AliPHOSTick.h"
990119d6 82
83ClassImp(AliPHOSDigitizer)
84
85
86//____________________________________________________________________________
3f81a70b 87 AliPHOSDigitizer::AliPHOSDigitizer()
990119d6 88{
89 // ctor
8d0f3f77 90 InitParameters() ;
9bd3caba 91 fDefaultInit = kTRUE ;
fbf811ec 92 fManager = 0 ; // We work in the standalong mode
548f0134 93
9bd3caba 94 }
3f81a70b 95
96//____________________________________________________________________________
fbf811ec 97AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile, const char * name, const Bool_t toSplit)
3f81a70b 98{
99 // ctor
ea5f3389 100
3f81a70b 101 SetTitle(headerFile) ;
38bb0fd5 102 SetName(name) ;
9891b76e 103 fManager = 0 ; // We work in the standalong mode
64c73770 104 fSplitFile= 0 ;
8d0f3f77 105 InitParameters() ;
fbf811ec 106 fToSplit = toSplit ;
3f81a70b 107 Init() ;
92f521a9 108 fDefaultInit = kFALSE ;
990119d6 109}
110
990119d6 111//____________________________________________________________________________
9891b76e 112AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
990119d6 113{
114 // ctor
fbf811ec 115 SetTitle(ard->GetInputFileName(0,0)) ;
b22e4735 116 InitParameters() ;
fbf811ec 117 fDefaultInit = kFALSE ;
118 fSplitFile = 0 ;
119
120 if (ard->GetOutputFile()) {
121 SetName(ard->GetOutputFile().Data());
122 fToSplit = kTRUE ;
123 } else {
124 SetName("Default") ;
125 fToSplit = kFALSE ;
126 }
990119d6 127}
128
129//____________________________________________________________________________
130 AliPHOSDigitizer::~AliPHOSDigitizer()
131{
132 // dtor
548f0134 133
79bb1b62 134 fSplitFile = 0 ;
990119d6 135}
136
137//____________________________________________________________________________
7b7c1533 138void AliPHOSDigitizer::Digitize(const Int_t event)
a4e98857 139{
140
141 // Makes the digitization of the collected summable digits.
142 // It first creates the array of all PHOS modules
143 // filled with noise (different for EMC, CPV and PPSD) and
144 // then adds contributions from SDigits.
145 // This design avoids scanning over the list of digits to add
146 // contribution to new SDigits only.
990119d6 147
7b7c1533 148 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
38bb0fd5 149 TClonesArray * digits = gime->Digits(GetName()) ;
7b7c1533 150
151 digits->Clear() ;
990119d6 152
7b7c1533 153 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 154 //Making digits with noise, first EMC
155 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
156
157 Int_t nCPV ;
990119d6 158 Int_t absID ;
159 TString name = geom->GetName() ;
160
9688c1dd 161 nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
162 geom->GetNModules() ;
8cb3533f 163
9688c1dd 164 digits->Expand(nCPV) ;
8cb3533f 165
7b7c1533 166 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
92f521a9 167 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
7b7c1533 168 if ( !sDigitizer) {
169 cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
170 abort() ;
171 }
9688c1dd 172
7b7c1533 173 // loop through the sdigits posted to the White Board and add them to the noise
7a9d98f9 174 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
7b7c1533 175 TIter next(folderslist) ;
176 TFolder * folder = 0 ;
3f81a70b 177 TClonesArray * sdigits = 0 ;
178 Int_t input = 0 ;
9688c1dd 179 TObjArray * sdigArray = new TObjArray(2) ;
38bb0fd5 180 while ( (folder = (TFolder*)next()) ) {
3f81a70b 181 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
54b82aa4 182 TString fileName(folder->GetName()) ;
183 fileName.ReplaceAll("_","/") ;
fbf811ec 184// cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits "
185// << GetName() << " from " << fileName << endl ;
9688c1dd 186 sdigArray->AddAt(sdigits, input) ;
187 input++ ;
188 }
38bb0fd5 189 }
9688c1dd 190
7a9d98f9 191 //Find the first crystall with signal
9688c1dd 192 Int_t nextSig = 200000 ;
193 Int_t i;
194 for(i=0; i<input; i++){
195 sdigits = (TClonesArray *)sdigArray->At(i) ;
a6eedfad 196 if ( !sdigits->GetEntriesFast() )
7a9d98f9 197 continue ;
9688c1dd 198 Int_t curNext = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
7a9d98f9 199 if(curNext < nextSig)
200 nextSig = curNext ;
9688c1dd 201 }
7437a0f7 202
9688c1dd 203 TArrayI index(input) ;
204 index.Reset() ; //Set all indexes to zero
205
206 AliPHOSDigit * digit ;
207 AliPHOSDigit * curSDigit ;
208
7437a0f7 209 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
210
9688c1dd 211 //Put Noise contribution
212 for(absID = 1; absID <= nEMC; absID++){
213 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
214 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
215 //look if we have to add signal?
b3690abb 216 digit = (AliPHOSDigit *) digits->At(absID-1) ;
217
9688c1dd 218 if(absID==nextSig){
219 //Add SDigits from all inputs
7437a0f7 220 ticks->Clear() ;
9688c1dd 221 Int_t contrib = 0 ;
7437a0f7 222 Float_t a = digit->GetAmp() ;
223 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
224 //Mark the beginnign of the signal
225 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
226 //Mark the end of the ignal
227 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
228
9688c1dd 229 //loop over inputs
230 for(i=0; i<input; i++){
5c9dfca0 231 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
232 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
233 else
234 curSDigit = 0 ;
9688c1dd 235 //May be several digits will contribute from the same input
236 while(curSDigit && curSDigit->GetId() == absID){
237 //Shift primary to separate primaries belonging different inputs
238 Int_t primaryoffset ;
9891b76e 239 if(fManager)
240 primaryoffset = fManager->GetMask(i) ;
9688c1dd 241 else
21c293b7 242 primaryoffset = 10000000*i ;
243 curSDigit->ShiftPrimary(primaryoffset) ;
7437a0f7 244
245 a = curSDigit->GetAmp() ;
246 b = a /fTimeSignalLength ;
247 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
248 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
9688c1dd 249
250 *digit = *digit + *curSDigit ; //add energies
7437a0f7 251
9688c1dd 252 index[i]++ ;
5c9dfca0 253 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
254 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
255 else
256 curSDigit = 0 ;
9688c1dd 257 }
258 }
259
260 //calculate and set time
7437a0f7 261 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 262 digit->SetTime(time) ;
7437a0f7 263
9688c1dd 264 //Find next signal module
7437a0f7 265 nextSig = 200000 ;
9688c1dd 266 for(i=0; i<input; i++){
267 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
5c9dfca0 268 Int_t curNext = nextSig ;
269 if(sdigits->GetEntriesFast() > index[i] ){
270 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
271
272 }
9688c1dd 273 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 274 }
275 }
990119d6 276 }
3f81a70b 277
7437a0f7 278 ticks->Delete() ;
279 delete ticks ;
9688c1dd 280
281
282 //Now CPV digits (different noise and no timing)
283 for(absID = nEMC+1; absID <= nCPV; absID++){
284 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
285 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
286 //look if we have to add signal?
287 if(absID==nextSig){
288 digit = (AliPHOSDigit *) digits->At(absID-1) ;
289 //Add SDigits from all inputs
290 for(i=0; i<input; i++){
5c9dfca0 291 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
292 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
293 else
294 curSDigit = 0 ;
a6eedfad 295
9688c1dd 296 //May be several digits will contribute from the same input
297 while(curSDigit && curSDigit->GetId() == absID){
298 //Shift primary to separate primaries belonging different inputs
299 Int_t primaryoffset ;
9891b76e 300 if(fManager)
301 primaryoffset = fManager->GetMask(i) ;
9688c1dd 302 else
303 primaryoffset = 10000000*i ;
304 curSDigit->ShiftPrimary(primaryoffset) ;
305
306 //add energies
307 *digit = *digit + *curSDigit ;
308 index[i]++ ;
5c9dfca0 309 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
310 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
311 else
312 curSDigit = 0 ;
9688c1dd 313 }
314 }
a6eedfad 315
9688c1dd 316 //Find next signal module
a6eedfad 317 nextSig = 200000 ;
9688c1dd 318 for(i=0; i<input; i++){
319 sdigits = (TClonesArray *)sdigArray->At(i) ;
5c9dfca0 320 Int_t curNext = nextSig ;
321 if(sdigits->GetEntriesFast() > index[i] )
322 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
9688c1dd 323 if(curNext < nextSig) nextSig = curNext ;
324 }
325
326 }
327 }
9688c1dd 328 delete sdigArray ; //We should not delete its contents
329
330
331
990119d6 332 //remove digits below thresholds
a6eedfad 333 for(i = 0; i < nEMC ; i++){
548f0134 334 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
aaf8a71c 335 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
a6eedfad 336 digits->RemoveAt(i) ;
aaf8a71c 337 else
338 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
339 }
340
a6eedfad 341
342 for(i = nEMC; i < nCPV ; i++)
343 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(i))->GetAmp()) < fCPVDigitThreshold)
344 digits->RemoveAt(i) ;
9688c1dd 345
7b7c1533 346 digits->Compress() ;
990119d6 347
7b7c1533 348 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 349 digits->Expand(ndigits) ;
990119d6 350
3758d9fc 351 //Set indexes in list of digits and make true digitization of the energy
990119d6 352 for (i = 0 ; i < ndigits ; i++) {
548f0134 353 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
990119d6 354 digit->SetIndexInList(i) ;
f672adc8 355 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
3758d9fc 356 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 357 }
990119d6 358
7b7c1533 359}
548f0134 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}
548f0134 375
7b7c1533 376//____________________________________________________________________________
377void AliPHOSDigitizer::Exec(Option_t *option)
378{
379 // Managing method
990119d6 380
f672adc8 381 if(strcmp(GetName(), "") == 0 )
7b7c1533 382 Init() ;
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
9891b76e 397 if(fManager){
398 treeD = fManager->GetTreeD() ;
3f81a70b 399 nevents = 1 ; // Will process only one event
8cb3533f 400
fbf811ec 401 //Check, if this branch already exits
402 if (treeD) {
403 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
404 TIter next(lob) ;
405 TBranch * branch = 0 ;
406 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
b3690abb 407
fbf811ec 408 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
409 if ( (strcmp(branch->GetName(), "PHOS")==0) &&
410 (strcmp(branch->GetTitle(), GetName())==0) )
411 phosfound = kTRUE ;
412
413 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
414 (strcmp(branch->GetTitle(), GetName())==0) )
415 digitizerfound = kTRUE ;
416 }
417
418 if ( phosfound ) {
419 cerr << "WARNING: AliPHOSDigitizer -> Digits branch with name " << GetName()
420 << " already exits" << endl ;
421 return ;
422 }
423 if ( digitizerfound ) {
424 cerr << "WARNING: AliPHOSDigitizer -> Digitizer branch with name " << GetName()
425 << " already exits" << endl ;
426 return ;
427 }
b3690abb 428 }
8cb3533f 429 }
fbf811ec 430 else { //PHOS standalone
431 if(gime->BranchExists("Digits") )
432 return ;
433 nevents=gime->MaxEvent() ;
434 }
435
7b7c1533 436 Int_t ievent ;
b3690abb 437
7b7c1533 438 for(ievent = 0; ievent < nevents; ievent++){
b3690abb 439
9891b76e 440 if(fManager){
b22e4735 441
3f81a70b 442 Int_t input ;
9891b76e 443 for(input = 0 ; input < fManager->GetNinputs(); input ++){
444 TTree * treeS = fManager->GetInputTreeS(input) ;
3f81a70b 445 if(!treeS){
b22e4735 446 cerr << "AliPHOSDigitizer::Exec -> No Input " << endl ;
3f81a70b 447 return ;
448 }
449 gime->ReadTreeS(treeS,input) ;
450 }
b22e4735 451
3f81a70b 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);
94de8339 462
463 //increment the total number of Digits per run
464 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
01a599c9 465 }
8d0f3f77 466
8cb3533f 467 if(strstr(option,"tim")){
468 gBenchmark->Stop("PHOSDigitizer");
469 cout << "AliPHOSDigitizer:" << endl ;
ba54256b 470 cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for Digitizing "
471 << gBenchmark->GetCpuTime("PHOSDigitizer")/nevents << " seconds per event " << endl ;
8cb3533f 472 cout << endl ;
473 }
990119d6 474
475}
476
7b7c1533 477//____________________________________________________________________________
7437a0f7 478Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks)
9688c1dd 479{ //
7437a0f7 480 ticks->Sort() ; //Sort in accordance with times of ticks
481 TIter it(ticks) ;
482 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
483 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
484
485 AliPHOSTick * t ;
486 while((t=(AliPHOSTick*) it.Next())){
487 if(t->GetTime() < time) //This tick starts before crossing
488 *ctick+=*t ;
489 else
490 return time ;
491
492 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 493 }
494 return time ;
9688c1dd 495}
8d0f3f77 496
9688c1dd 497//____________________________________________________________________________
3f81a70b 498Bool_t AliPHOSDigitizer::Init()
a4e98857 499{
fbf811ec 500 // Makes all memory allocations
501
502 if( strcmp(GetTitle(), "") == 0 )
503 SetTitle("galice.root") ;
8d0f3f77 504
fbf811ec 505 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName(), fToSplit) ;
8d0f3f77 506 if ( gime == 0 ) {
507 cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
508 return kFALSE;
509 }
510
511 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
b22e4735 512
8d0f3f77 513 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
514
515 // Post Digits to the white board
516 gime->PostDigits(GetName() ) ;
517
518 // Post Digitizer to the white board
519 gime->PostDigitizer(this) ;
fbf811ec 520
521 fSplitFile = 0 ;
522 if(fToSplit){
523 // construct the name of the file as /path/PHOS.SDigits.root
524 //First - extract full path if necessary
525 TString digitsFileName(GetTitle()) ;
526 Ssiz_t islash = digitsFileName.Last('/') ;
527 if(islash<digitsFileName.Length())
528 digitsFileName.Remove(islash+1,digitsFileName.Length()) ;
529 else
530 digitsFileName="" ;
531 // Next - append the file name
532 digitsFileName+="PHOS.Digits." ;
533 if((strcmp(GetName(),"Default")!=0)&&(strcmp(GetName(),"")!=0)){
534 digitsFileName+=GetName() ;
535 digitsFileName+="." ;
536 }
537 digitsFileName+="root" ;
538 // Finally - check if the file already opened or open the file
539 fSplitFile = static_cast<TFile*>(gROOT->GetFile(digitsFileName.Data()));
540 if(!fSplitFile)
541 fSplitFile = TFile::Open(digitsFileName.Data(),"update") ;
542 }
8d0f3f77 543
544 //Mark that we will use current header file
545 if(!fManager){
546 gime->PostSDigits(GetName(),GetTitle()) ;
547 gime->PostSDigitizer(GetName(),GetTitle()) ;
548 }
549 return kTRUE ;
550}
551
552//____________________________________________________________________________
553void AliPHOSDigitizer::InitParameters()
554{
c74936f1 555 fPinNoise = 0.004 ;
556 fEMCDigitThreshold = 0.012 ;
3758d9fc 557 fCPVNoise = 0.01;
558 fCPVDigitThreshold = 0.09 ;
aaf8a71c 559 fTimeResolution = 0.5e-9 ;
3758d9fc 560 fTimeSignalLength = 1.0e-9 ;
561 fDigitsInRun = 0 ;
562 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
563 fADCpedestalEmc = 0.005 ; //
564 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
565
566 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
567 fADCpedestalCpv = 0.012 ; //
568 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
569
570 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
8cb3533f 571
990119d6 572}
7b7c1533 573
990119d6 574//__________________________________________________________________
7b7c1533 575void AliPHOSDigitizer::MixWith(const char* headerFile)
a4e98857 576{
ba54256b 577 // Allows to produce digits by superimposing background and signal event.
bca3b32a 578 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 579 // the constructor.
580 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
581 // Thus we avoid writing (changing) huge and expensive
bca3b32a 582 // backgound files: all output will be writen into SIGNAL, i.e.
583 // opened in constructor file.
584 //
a4e98857 585 // One can open as many files to mix with as one needs.
7b7c1533 586 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
587 // can be mixed.
bca3b32a 588
7b7c1533 589 if( strcmp(GetName(), "") == 0 )
8cb3533f 590 Init() ;
591
9891b76e 592 if(fManager){
3f81a70b 593 cout << "Can not use this method under AliRunDigitizer " << endl ;
594 return ;
595 }
7b7c1533 596
597 // check if the specified SDigits do not already exist on the White Board:
aad24ee7 598 // //Folders/RunMC/Event/Data/PHOS/SDigits/headerFile/sdigitsname
990119d6 599
548f0134 600 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
601 TString path = gime->SDigitsFolder()->GetName() ;
602
603 // before it was ???? "Folders/RunMC/Event/Data/PHOS/SDigits" ;
7b7c1533 604 path += headerFile ;
605 path += "/" ;
3f81a70b 606 path += GetName() ;
7b7c1533 607 if ( gROOT->FindObjectAny(path.Data()) ) {
608 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
609 return;
990119d6 610 }
3f81a70b 611
3f81a70b 612 gime->PostSDigits(GetName(),headerFile) ;
613
7b7c1533 614 // check if the requested file is already open or exist and if SDigits Branch exist
615 TFile * file = (TFile*)gROOT->FindObject(headerFile);
616 if ( !file ) {
617 file = new TFile(headerFile, "READ") ;
618 if (!file) {
619 cerr << "ERROR: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
620 return ;
621 }
622 }
3f81a70b 623
990119d6 624}
7b7c1533 625
b3690abb 626//__________________________________________________________________
dd5c4038 627void AliPHOSDigitizer::Print(Option_t* option)const {
628 // Print Digitizer's parameters
7b7c1533 629 if( strcmp(GetName(), "") != 0 ){
fbf811ec 630
631
8cb3533f 632 cout << "------------------- "<< GetName() << " -------------" << endl ;
6e89b8da 633
634 const Int_t nStreams = GetNInputStreams() ;
635 if (nStreams) {
636 Int_t index = 0 ;
637 for (index = 0 ; index < nStreams ; index++)
3685cf52 638 cout << "Adding SDigits " << GetName() << " from " << fManager->GetInputFileName(index, 0) << endl ;
6e89b8da 639
ea5f3389 640 cout << endl ;
3685cf52 641 cout << "Writing digits to " << fManager->GetInputFileName(0, 0) << endl ;
6e89b8da 642 } else {
643// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
644// gime->Folder("sdigits") ;
645// cout << "Digitizing sDigits from file(s): " <<endl ;
646// TCollection * folderslist = gime->Folder("sdigits")->GetListOfFolders() ;
647// TIter next(folderslist) ;
648// TFolder * folder = 0 ;
ea5f3389 649
6e89b8da 650// while ( (folder = (TFolder*)next()) ) {
651// if ( folder->FindObject(GetName()) )
fbf811ec 652 // cout << "Adding SDigits " << GetName() << " from " << GetSDigitsFileName() << endl ;
6e89b8da 653// }
ea5f3389 654 cout << endl ;
655 cout << "Writing digits to " << GetTitle() << endl ;
656 }
8cb3533f 657 cout << endl ;
658 cout << "With following parameters: " << endl ;
659 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
660 cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl ; ;
661 cout << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
662 cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
8cb3533f 663 cout << "---------------------------------------------------" << endl ;
990119d6 664 }
8cb3533f 665 else
666 cout << "AliPHOSDigitizer not initialized " << endl ;
667
668}
9688c1dd 669
8cb3533f 670//__________________________________________________________________
dd5c4038 671void AliPHOSDigitizer::PrintDigits(Option_t * option){
672 // Print a table of digits
a4e98857 673
7b7c1533 674 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
675 TClonesArray * digits = gime->Digits() ;
676
01a599c9 677 cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
7b7c1533 678 cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
990119d6 679 cout << endl ;
9688c1dd 680 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 681
682 //loop over digits
683 AliPHOSDigit * digit;
a6eedfad 684 cout << "EMC digits (with primaries): " << endl ;
685 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
9688c1dd 686 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 687 Int_t index ;
a6eedfad 688 for (index = 0 ; (index < digits->GetEntriesFast()) &&
9688c1dd 689 (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 690 digit = (AliPHOSDigit * ) digits->At(index) ;
9688c1dd 691 if(digit->GetNprimary() == 0) continue;
692 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
693 << setw(6) << digit->GetIndexInList() << " "
694 << setw(5) << digit->GetNprimary() <<" ";
8cb3533f 695
696 Int_t iprimary;
697 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
9688c1dd 698 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
8cb3533f 699 cout << endl;
9688c1dd 700 }
701 cout << endl;
702 }
703
704 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 705
9688c1dd 706 //loop over CPV digits
707 AliPHOSDigit * digit;
a6eedfad 708 cout << "CPV digits: " << endl ;
709 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
9688c1dd 710 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
711 Int_t index ;
a6eedfad 712 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 713 digit = (AliPHOSDigit * ) digits->At(index) ;
714 if(digit->GetId() > maxEmc){
715 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
716 << setw(6) << digit->GetIndexInList() << " "
717 << setw(5) << digit->GetNprimary() <<" ";
718
719 Int_t iprimary;
720 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
721 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
722 cout << endl;
723 }
724 }
8cb3533f 725 }
9688c1dd 726
8cb3533f 727}
7b7c1533 728
9688c1dd 729//__________________________________________________________________
730Float_t AliPHOSDigitizer::TimeOfNoise(void)
731{ // Calculates the time signal generated by noise
732 //to be rewritten, now returns just big number
733 return 1. ;
734
735}
7b7c1533 736
737//____________________________________________________________________________
738void AliPHOSDigitizer::WriteDigits(Int_t event)
739{
740
741 // Makes TreeD in the output file.
742 // Check if branch already exists:
743 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
744 // already existing branches.
745 // else creates branch with Digits, named "PHOS", title "...",
746 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
747 // and names of files, from which digits are made.
748
749 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
aad24ee7 750 const TClonesArray * digits = gime->Digits(GetName()) ;
8d0f3f77 751 TTree * treeD ;
fbf811ec 752
753 if(fManager)
754 treeD = fManager->GetTreeD() ;
755 else {
756 if((gAlice->TreeD() == 0) || (fSplitFile)) // we should not create TreeD if it is already here
757 gAlice->MakeTree("D", fSplitFile); // We overwrite TreeD in split file in the case of second reconstruction
758 if(fSplitFile)
759 fSplitFile->cd() ;
760 treeD = gAlice->TreeD();
761 }
762
7b7c1533 763 // -- create Digits branch
764 Int_t bufferSize = 32000 ;
ba54256b 765 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
7b7c1533 766 digitsBranch->SetTitle(GetName());
fbf811ec 767
7b7c1533 768 // -- Create Digitizer branch
769 Int_t splitlevel = 0 ;
c2cd5471 770 const AliPHOSDigitizer * d = dynamic_cast<const AliPHOSDigitizer *>(gime->Digitizer()) ;
ba54256b 771 TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
7b7c1533 772 digitizerBranch->SetTitle(GetName());
b3690abb 773
ec85099a 774 digitsBranch->Fill() ;
64c73770 775 digitizerBranch->Fill() ;
b3690abb 776 treeD->AutoSave() ;
7b7c1533 777}