25-apr-2002 NvE Projectile and target specifications introduced in AliEvent.
[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 ---
71
8cb3533f 72#include "AliRun.h"
b3690abb 73#include "AliHeader.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
90
8d0f3f77 91 InitParameters() ;
3f81a70b 92}
93
94//____________________________________________________________________________
95AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile,const char * name)
96{
97 // ctor
98 SetName(name) ;
99 SetTitle(headerFile) ;
9891b76e 100 fManager = 0 ; // We work in the standalong mode
64c73770 101 fSplitFile= 0 ;
8d0f3f77 102 InitParameters() ;
3f81a70b 103 Init() ;
104
990119d6 105}
106
990119d6 107//____________________________________________________________________________
9891b76e 108AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
990119d6 109{
110 // ctor
93aeb834 111 SetName(""); //Will call init in the digitizing
8d0f3f77 112 SetTitle("aliroot") ;
990119d6 113}
114
115//____________________________________________________________________________
116 AliPHOSDigitizer::~AliPHOSDigitizer()
117{
118 // dtor
8cb3533f 119
6f51f90b 120
121 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
8d0f3f77 122
6f51f90b 123 // remove the task from the folder list
8d0f3f77 124 gime->RemoveTask("S",GetName()) ;
6f51f90b 125 gime->RemoveTask("D",GetName()) ;
8d0f3f77 126
6f51f90b 127 // remove the Digits from the folder list
128 gime->RemoveObjects("D", GetName()) ;
8d0f3f77 129
6f51f90b 130 // remove the SDigits from the folder list
131 gime->RemoveSDigits() ;
8cb3533f 132
8d0f3f77 133 // Delete gAlice
134 gime->CloseFile() ;
135
136 fSplitFile = 0 ;
990119d6 137}
138
139//____________________________________________________________________________
7b7c1533 140void AliPHOSDigitizer::Digitize(const Int_t event)
a4e98857 141{
142
143 // Makes the digitization of the collected summable digits.
144 // It first creates the array of all PHOS modules
145 // filled with noise (different for EMC, CPV and PPSD) and
146 // then adds contributions from SDigits.
147 // This design avoids scanning over the list of digits to add
148 // contribution to new SDigits only.
990119d6 149
7b7c1533 150 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
3f81a70b 151 TClonesArray * digits = gime->Digits(GetName()) ;
7b7c1533 152
153 digits->Clear() ;
990119d6 154
7b7c1533 155 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 156
157 //Making digits with noise, first EMC
158 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
159
160 Int_t nCPV ;
990119d6 161 Int_t absID ;
162 TString name = geom->GetName() ;
163
9688c1dd 164 nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
165 geom->GetNModules() ;
8cb3533f 166
9688c1dd 167 digits->Expand(nCPV) ;
8cb3533f 168
7b7c1533 169 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
170 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
171 if ( !sDigitizer) {
172 cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
173 abort() ;
174 }
9688c1dd 175
7b7c1533 176 // loop through the sdigits posted to the White Board and add them to the noise
7a9d98f9 177 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
7b7c1533 178 TIter next(folderslist) ;
179 TFolder * folder = 0 ;
3f81a70b 180 TClonesArray * sdigits = 0 ;
181 Int_t input = 0 ;
9688c1dd 182 TObjArray * sdigArray = new TObjArray(2) ;
183 while ( (folder = (TFolder*)next()) )
3f81a70b 184 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
54b82aa4 185 TString fileName(folder->GetName()) ;
186 fileName.ReplaceAll("_","/") ;
3f81a70b 187 cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits "
54b82aa4 188 << GetName() << " from " << fileName << endl ;
9688c1dd 189 sdigArray->AddAt(sdigits, input) ;
190 input++ ;
191 }
192
7a9d98f9 193 //Find the first crystall with signal
9688c1dd 194 Int_t nextSig = 200000 ;
195 Int_t i;
196 for(i=0; i<input; i++){
197 sdigits = (TClonesArray *)sdigArray->At(i) ;
a6eedfad 198 if ( !sdigits->GetEntriesFast() )
7a9d98f9 199 continue ;
9688c1dd 200 Int_t curNext = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
7a9d98f9 201 if(curNext < nextSig)
202 nextSig = curNext ;
9688c1dd 203 }
7437a0f7 204
9688c1dd 205 TArrayI index(input) ;
206 index.Reset() ; //Set all indexes to zero
207
208 AliPHOSDigit * digit ;
209 AliPHOSDigit * curSDigit ;
210
7437a0f7 211 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
212
9688c1dd 213 //Put Noise contribution
214 for(absID = 1; absID <= nEMC; absID++){
215 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
216 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
217 //look if we have to add signal?
b3690abb 218 digit = (AliPHOSDigit *) digits->At(absID-1) ;
219
9688c1dd 220 if(absID==nextSig){
221 //Add SDigits from all inputs
7437a0f7 222 ticks->Clear() ;
9688c1dd 223 Int_t contrib = 0 ;
7437a0f7 224 Float_t a = digit->GetAmp() ;
225 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
226 //Mark the beginnign of the signal
227 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
228 //Mark the end of the ignal
229 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
230
9688c1dd 231 //loop over inputs
232 for(i=0; i<input; i++){
5c9dfca0 233 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
234 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
235 else
236 curSDigit = 0 ;
9688c1dd 237 //May be several digits will contribute from the same input
238 while(curSDigit && curSDigit->GetId() == absID){
239 //Shift primary to separate primaries belonging different inputs
240 Int_t primaryoffset ;
9891b76e 241 if(fManager)
242 primaryoffset = fManager->GetMask(i) ;
9688c1dd 243 else
21c293b7 244 primaryoffset = 10000000*i ;
245 curSDigit->ShiftPrimary(primaryoffset) ;
7437a0f7 246
247 a = curSDigit->GetAmp() ;
248 b = a /fTimeSignalLength ;
249 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
250 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
9688c1dd 251
252 *digit = *digit + *curSDigit ; //add energies
7437a0f7 253
9688c1dd 254 index[i]++ ;
5c9dfca0 255 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
256 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
257 else
258 curSDigit = 0 ;
9688c1dd 259 }
260 }
261
262 //calculate and set time
7437a0f7 263 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 264 digit->SetTime(time) ;
7437a0f7 265
9688c1dd 266 //Find next signal module
7437a0f7 267 nextSig = 200000 ;
9688c1dd 268 for(i=0; i<input; i++){
269 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
5c9dfca0 270 Int_t curNext = nextSig ;
271 if(sdigits->GetEntriesFast() > index[i] ){
272 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
273
274 }
9688c1dd 275 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 276 }
277 }
990119d6 278 }
3f81a70b 279
7437a0f7 280 ticks->Delete() ;
281 delete ticks ;
9688c1dd 282
283
284 //Now CPV digits (different noise and no timing)
285 for(absID = nEMC+1; absID <= nCPV; absID++){
286 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
287 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
288 //look if we have to add signal?
289 if(absID==nextSig){
290 digit = (AliPHOSDigit *) digits->At(absID-1) ;
291 //Add SDigits from all inputs
292 for(i=0; i<input; i++){
5c9dfca0 293 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
294 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
295 else
296 curSDigit = 0 ;
a6eedfad 297
9688c1dd 298 //May be several digits will contribute from the same input
299 while(curSDigit && curSDigit->GetId() == absID){
300 //Shift primary to separate primaries belonging different inputs
301 Int_t primaryoffset ;
9891b76e 302 if(fManager)
303 primaryoffset = fManager->GetMask(i) ;
9688c1dd 304 else
305 primaryoffset = 10000000*i ;
306 curSDigit->ShiftPrimary(primaryoffset) ;
307
308 //add energies
309 *digit = *digit + *curSDigit ;
310 index[i]++ ;
5c9dfca0 311 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
312 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
313 else
314 curSDigit = 0 ;
9688c1dd 315 }
316 }
a6eedfad 317
9688c1dd 318 //Find next signal module
a6eedfad 319 nextSig = 200000 ;
9688c1dd 320 for(i=0; i<input; i++){
321 sdigits = (TClonesArray *)sdigArray->At(i) ;
5c9dfca0 322 Int_t curNext = nextSig ;
323 if(sdigits->GetEntriesFast() > index[i] )
324 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
9688c1dd 325 if(curNext < nextSig) nextSig = curNext ;
326 }
327
328 }
329 }
9688c1dd 330 delete sdigArray ; //We should not delete its contents
331
332
333
990119d6 334 //remove digits below thresholds
a6eedfad 335 for(i = 0; i < nEMC ; i++){
336 digit = (AliPHOSDigit*) digits->At(i) ;
aaf8a71c 337 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
a6eedfad 338 digits->RemoveAt(i) ;
aaf8a71c 339 else
340 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
341 }
342
a6eedfad 343
344 for(i = nEMC; i < nCPV ; i++)
345 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(i))->GetAmp()) < fCPVDigitThreshold)
346 digits->RemoveAt(i) ;
9688c1dd 347
7b7c1533 348 digits->Compress() ;
990119d6 349
7b7c1533 350 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 351 digits->Expand(ndigits) ;
990119d6 352
3758d9fc 353 //Set indexes in list of digits and make true digitization of the energy
990119d6 354 for (i = 0 ; i < ndigits ; i++) {
7b7c1533 355 AliPHOSDigit * digit = (AliPHOSDigit *) digits->At(i) ;
990119d6 356 digit->SetIndexInList(i) ;
f672adc8 357 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
3758d9fc 358 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 359 }
990119d6 360
7b7c1533 361}
3758d9fc 362//____________________________________________________________________________
363Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
364{
365 Int_t chanel ;
366 if(absId <= fEmcCrystals){ //digitize as EMC
367 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
368 if(chanel > fNADCemc ) chanel = fNADCemc ;
369 }
370 else{ //Digitize as CPV
371 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
372 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
373 }
374 return chanel ;
375}
7b7c1533 376//____________________________________________________________________________
377void AliPHOSDigitizer::Exec(Option_t *option)
378{
379 // Managing method
990119d6 380
f672adc8 381 if(strcmp(GetName(), "") == 0 )
7b7c1533 382 Init() ;
8cb3533f 383
7b7c1533 384 if (strstr(option,"print")) {
385 Print("");
386 return ;
8cb3533f 387 }
990119d6 388
7b7c1533 389 if(strstr(option,"tim"))
390 gBenchmark->Start("PHOSDigitizer");
8cb3533f 391
3f81a70b 392 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
393
394 Int_t nevents ;
395
396 TTree * treeD ;
397
9891b76e 398 if(fManager){
399 treeD = fManager->GetTreeD() ;
3f81a70b 400 nevents = 1 ; // Will process only one event
401 }
402 else {
403 gAlice->GetEvent(0) ;
404 nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
405 treeD=gAlice->TreeD() ;
406 }
b3690abb 407
3f81a70b 408
7b7c1533 409 //Check, if this branch already exits
b3690abb 410 if (treeD) {
411 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
412 TIter next(lob) ;
413 TBranch * branch = 0 ;
414 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
8cb3533f 415
b3690abb 416 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
417 if ( (strcmp(branch->GetName(), "PHOS")==0) &&
418 (strcmp(branch->GetTitle(), GetName())==0) )
419 phosfound = kTRUE ;
420
421 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
422 (strcmp(branch->GetTitle(), GetName())==0) )
423 digitizerfound = kTRUE ;
424 }
425
426 if ( phosfound ) {
427 cerr << "WARNING: AliPHOSDigitizer -> Digits branch with name " << GetName()
428 << " already exits" << endl ;
429 return ;
430 }
431 if ( digitizerfound ) {
432 cerr << "WARNING: AliPHOSDigitizer -> Digitizer branch with name " << GetName()
433 << " already exits" << endl ;
434 return ;
435 }
8cb3533f 436 }
990119d6 437
7b7c1533 438 Int_t ievent ;
b3690abb 439
7b7c1533 440 for(ievent = 0; ievent < nevents; ievent++){
b3690abb 441
9891b76e 442 if(fManager){
3f81a70b 443 Int_t input ;
9891b76e 444 for(input = 0 ; input < fManager->GetNinputs(); input ++){
445 TTree * treeS = fManager->GetInputTreeS(input) ;
3f81a70b 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);
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{
8d0f3f77 500
501 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
502 if ( gime == 0 ) {
503 cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
504 return kFALSE;
505 }
506
507 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
508 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
509
510 // Post Digits to the white board
511 gime->PostDigits(GetName() ) ;
512
513 // Post Digitizer to the white board
514 gime->PostDigitizer(this) ;
515
516 //Mark that we will use current header file
517 if(!fManager){
518 gime->PostSDigits(GetName(),GetTitle()) ;
519 gime->PostSDigitizer(GetName(),GetTitle()) ;
520 }
521 return kTRUE ;
522}
523
524//____________________________________________________________________________
525void AliPHOSDigitizer::InitParameters()
526{
c74936f1 527 fPinNoise = 0.004 ;
528 fEMCDigitThreshold = 0.012 ;
3758d9fc 529 fCPVNoise = 0.01;
530 fCPVDigitThreshold = 0.09 ;
aaf8a71c 531 fTimeResolution = 0.5e-9 ;
3758d9fc 532 fTimeSignalLength = 1.0e-9 ;
533 fDigitsInRun = 0 ;
534 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
535 fADCpedestalEmc = 0.005 ; //
536 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
537
538 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
539 fADCpedestalCpv = 0.012 ; //
540 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
541
542 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
8cb3533f 543
9891b76e 544 if(fManager)
f672adc8 545 SetTitle("aliroot") ;
4a72b8de 546 else if (strcmp(GetTitle(),"")==0)
53c09043 547 SetTitle("galice.root") ;
f672adc8 548
549 if( strcmp(GetName(), "") == 0 )
550 SetName("Default") ;
990119d6 551}
7b7c1533 552
990119d6 553//__________________________________________________________________
7b7c1533 554void AliPHOSDigitizer::MixWith(const char* headerFile)
a4e98857 555{
ba54256b 556 // Allows to produce digits by superimposing background and signal event.
bca3b32a 557 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 558 // the constructor.
559 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
560 // Thus we avoid writing (changing) huge and expensive
bca3b32a 561 // backgound files: all output will be writen into SIGNAL, i.e.
562 // opened in constructor file.
563 //
a4e98857 564 // One can open as many files to mix with as one needs.
7b7c1533 565 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
566 // can be mixed.
bca3b32a 567
7b7c1533 568 if( strcmp(GetName(), "") == 0 )
8cb3533f 569 Init() ;
570
9891b76e 571 if(fManager){
3f81a70b 572 cout << "Can not use this method under AliRunDigitizer " << endl ;
573 return ;
574 }
7b7c1533 575
576 // check if the specified SDigits do not already exist on the White Board:
aad24ee7 577 // //Folders/RunMC/Event/Data/PHOS/SDigits/headerFile/sdigitsname
990119d6 578
aad24ee7 579 TString path = "Folders/RunMC/Event/Data/PHOS/SDigits" ;
7b7c1533 580 path += headerFile ;
581 path += "/" ;
3f81a70b 582 path += GetName() ;
7b7c1533 583 if ( gROOT->FindObjectAny(path.Data()) ) {
584 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
585 return;
990119d6 586 }
3f81a70b 587
588 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
589 gime->PostSDigits(GetName(),headerFile) ;
590
7b7c1533 591 // check if the requested file is already open or exist and if SDigits Branch exist
592 TFile * file = (TFile*)gROOT->FindObject(headerFile);
593 if ( !file ) {
594 file = new TFile(headerFile, "READ") ;
595 if (!file) {
596 cerr << "ERROR: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
597 return ;
598 }
599 }
3f81a70b 600
990119d6 601}
7b7c1533 602
990119d6 603//__________________________________________________________________
64c73770 604void AliPHOSDigitizer::SetSplitFile(const TString splitFileName)
b3690abb 605{
606 // Diverts the Digits in a file separate from the hits file
607
608 // I guess it is not going to work if we do merging
609 if (fManager) {
610 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> Not yet available in case of merging activated " << endl ;
611 return ;
612 }
613
614 TDirectory * cwd = gDirectory ;
64c73770 615 if ( !(gAlice->GetTreeDFileName() == splitFileName) ) {
616 if (gAlice->GetTreeDFile() )
617 gAlice->GetTreeDFile()->Close() ;
618 }
619
620 fSplitFile = gAlice->InitTreeFile("D",splitFileName.Data());
621 fSplitFile->cd() ;
8d0f3f77 622 gAlice->Write(0, TObject::kOverwrite);
623
b3690abb 624 TTree *treeE = gAlice->TreeE();
625 if (!treeE) {
626 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> No TreeE found "<<endl;
627 abort() ;
628 }
629
630 // copy TreeE
8d0f3f77 631 AliHeader *header = new AliHeader();
632 treeE->SetBranchAddress("Header", &header);
633 treeE->SetBranchStatus("*",1);
634 TTree *treeENew = treeE->CloneTree();
635 treeENew->Write(0, TObject::kOverwrite);
636
b3690abb 637 // copy AliceGeom
8d0f3f77 638 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
639 if (!AliceGeom) {
640 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> AliceGeom was not found in the input file "<<endl;
641 abort() ;
349db5e7 642 }
8d0f3f77 643 AliceGeom->Write(0, TObject::kOverwrite);
349db5e7 644
64c73770 645 gAlice->MakeTree("D",fSplitFile);
b3690abb 646 cwd->cd() ;
b3690abb 647 cout << "INFO: AliPHOSDigitizer::SetSPlitMode -> Digits will be stored in " << splitFileName.Data() << endl ;
648}
649
650//__________________________________________________________________
dd5c4038 651void AliPHOSDigitizer::Print(Option_t* option)const {
652 // Print Digitizer's parameters
7b7c1533 653 if( strcmp(GetName(), "") != 0 ){
8cb3533f 654
655 cout << "------------------- "<< GetName() << " -------------" << endl ;
656 cout << "Digitizing sDigits from file(s): " <<endl ;
7b7c1533 657
aad24ee7 658 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("Folders/RunMC/Event/Data/PHOS/SDigits"))->GetListOfFolders() ;
7b7c1533 659 TIter next(folderslist) ;
660 TFolder * folder = 0 ;
661
662 while ( (folder = (TFolder*)next()) ) {
663 if ( folder->FindObject(GetName()) )
664 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
8cb3533f 665 }
666 cout << endl ;
7b7c1533 667 cout << "Writing digits to " << GetTitle() << endl ;
8cb3533f 668
669 cout << endl ;
670 cout << "With following parameters: " << endl ;
671 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
672 cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl ; ;
673 cout << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
674 cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
8cb3533f 675 cout << "---------------------------------------------------" << endl ;
990119d6 676 }
8cb3533f 677 else
678 cout << "AliPHOSDigitizer not initialized " << endl ;
679
680}
9688c1dd 681
8cb3533f 682//__________________________________________________________________
dd5c4038 683void AliPHOSDigitizer::PrintDigits(Option_t * option){
684 // Print a table of digits
a4e98857 685
7b7c1533 686 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
687 TClonesArray * digits = gime->Digits() ;
688
01a599c9 689 cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
7b7c1533 690 cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
990119d6 691 cout << endl ;
9688c1dd 692 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 693
694 //loop over digits
695 AliPHOSDigit * digit;
a6eedfad 696 cout << "EMC digits (with primaries): " << endl ;
697 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
9688c1dd 698 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 699 Int_t index ;
a6eedfad 700 for (index = 0 ; (index < digits->GetEntriesFast()) &&
9688c1dd 701 (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 702 digit = (AliPHOSDigit * ) digits->At(index) ;
9688c1dd 703 if(digit->GetNprimary() == 0) continue;
704 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
705 << setw(6) << digit->GetIndexInList() << " "
706 << setw(5) << digit->GetNprimary() <<" ";
8cb3533f 707
708 Int_t iprimary;
709 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
9688c1dd 710 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
8cb3533f 711 cout << endl;
9688c1dd 712 }
713 cout << endl;
714 }
715
716 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 717
9688c1dd 718 //loop over CPV digits
719 AliPHOSDigit * digit;
a6eedfad 720 cout << "CPV digits: " << endl ;
721 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
9688c1dd 722 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
723 Int_t index ;
a6eedfad 724 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 725 digit = (AliPHOSDigit * ) digits->At(index) ;
726 if(digit->GetId() > maxEmc){
727 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
728 << setw(6) << digit->GetIndexInList() << " "
729 << setw(5) << digit->GetNprimary() <<" ";
730
731 Int_t iprimary;
732 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
733 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
734 cout << endl;
735 }
736 }
8cb3533f 737 }
9688c1dd 738
8cb3533f 739}
7b7c1533 740
8cb3533f 741//__________________________________________________________________
a4e98857 742void AliPHOSDigitizer::SetSDigitsBranch(const char* title)
743{
bca3b32a 744 // we set title (comment) of the SDigits branch in the first! header file
7b7c1533 745 if( strcmp(GetName(), "") == 0 )
746 Init() ;
990119d6 747
7b7c1533 748 AliPHOSGetter::GetInstance()->SDigits()->SetName(title) ;
749
8cb3533f 750}
9688c1dd 751//__________________________________________________________________
752Float_t AliPHOSDigitizer::TimeOfNoise(void)
753{ // Calculates the time signal generated by noise
754 //to be rewritten, now returns just big number
755 return 1. ;
756
757}
7b7c1533 758//____________________________________________________________________________
759void AliPHOSDigitizer::Reset()
760{
761 // sets current event number to the first simulated event
762
763 if( strcmp(GetName(), "") == 0 )
764 Init() ;
765
766 // Int_t inputs ;
767// for(inputs = 0; inputs < fNinputs ;inputs++)
768// fIevent->AddAt(-1, inputs ) ;
769
770}
771
772//____________________________________________________________________________
773void AliPHOSDigitizer::WriteDigits(Int_t event)
774{
775
776 // Makes TreeD in the output file.
777 // Check if branch already exists:
778 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
779 // already existing branches.
780 // else creates branch with Digits, named "PHOS", title "...",
781 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
782 // and names of files, from which digits are made.
783
784 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
aad24ee7 785 const TClonesArray * digits = gime->Digits(GetName()) ;
8d0f3f77 786 TTree * treeD ;
7b7c1533 787
b3690abb 788
789 if(fManager)
790 treeD = fManager->GetTreeD() ;
791 else {
792 if (!gAlice->TreeD() )
64c73770 793 gAlice->MakeTree("D", fSplitFile);
b3690abb 794 treeD = gAlice->TreeD();
795 }
796
7b7c1533 797
7b7c1533 798 // -- create Digits branch
799 Int_t bufferSize = 32000 ;
ba54256b 800 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
7b7c1533 801 digitsBranch->SetTitle(GetName());
7b7c1533 802
803 // -- Create Digitizer branch
804 Int_t splitlevel = 0 ;
805 AliPHOSDigitizer * d = gime->Digitizer(GetName()) ;
ba54256b 806 TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
7b7c1533 807 digitizerBranch->SetTitle(GetName());
b3690abb 808
ec85099a 809 digitsBranch->Fill() ;
64c73770 810 digitizerBranch->Fill() ;
b3690abb 811 treeD->AutoSave() ;
3f81a70b 812
7b7c1533 813}