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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//_________________________________________________________________________
19//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
20//////////////////////////////////////////////////////////////////////////////
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).
23// In addition it performs mixing of summable digits from different events.
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
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//
33// Note, that one can set a title for new digits branch, and repeat digitization with
34// another set of parameters.
35//
36// Use case:
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
41//
42// root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
43// // Will read sdigits from galice1.root
44// root[3] d1->MixWith("galice2.root")
45// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
46// // Reads another set of sdigits from galice2.root
47// root[3] d1->MixWith("galice3.root")
48// // Reads another set of sdigits from galice3.root
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
55//
56
57// --- ROOT system ---
58#include "TFile.h"
59#include "TTree.h"
60#include "TSystem.h"
61#include "TROOT.h"
62#include "TFolder.h"
63#include "TObjString.h"
64#include "TGeometry.h"
65#include "TBenchmark.h"
66
67// --- Standard library ---
68#include <iomanip.h>
69
70// --- AliRoot header files ---
71
72#include "AliRun.h"
73#include "AliHeader.h"
74#include "AliRunDigitizer.h"
75#include "AliPHOSDigit.h"
76#include "AliPHOS.h"
77#include "AliPHOSGetter.h"
78#include "AliPHOSDigitizer.h"
79#include "AliPHOSSDigitizer.h"
80#include "AliPHOSGeometry.h"
81#include "AliPHOSTick.h"
82
83ClassImp(AliPHOSDigitizer)
84
85
86//____________________________________________________________________________
87 AliPHOSDigitizer::AliPHOSDigitizer()
88{
89 // ctor
90
91 fPinNoise = 0.004 ;
92 fEMCDigitThreshold = 0.012 ;
93 fCPVNoise = 0.01;
94 fCPVDigitThreshold = 0.09 ;
95 fTimeResolution = 0.5e-9 ;
96 fTimeSignalLength = 1.0e-9 ;
97 fDigitsInRun = 0 ;
98 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
99 fADCpedestalEmc = 0.005 ; //
100 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
101
102 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
103 fADCpedestalCpv = 0.012 ; //
104 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
105
106 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
107 fManager = 0 ; // We work in the standalong mode
108 fSplitFile= 0 ;
109}
110
111//____________________________________________________________________________
112AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile,const char * name)
113{
114 // ctor
115 SetName(name) ;
116 SetTitle(headerFile) ;
117 fManager = 0 ; // We work in the standalong mode
118 fSplitFile= 0 ;
119 Init() ;
120
121}
122
123//____________________________________________________________________________
124AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
125{
126 // ctor
127 SetName(""); //Will call init in the digitizing
128 SetTitle("aliroot") ;
129}
130
131//____________________________________________________________________________
132 AliPHOSDigitizer::~AliPHOSDigitizer()
133{
134 // dtor
135
136 if (fSplitFile)
137 if ( fSplitFile->IsOpen() )
138 fSplitFile->Close() ;
139
140 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
141 // Close the root file
142 gime->CloseFile() ;
143 // remove the task from the folder list
144 gime->RemoveTask("D",GetName()) ;
145 // remove the Digits from the folder list
146 gime->RemoveObjects("D", GetName()) ;
147 // remove the SDigits from the folder list
148 gime->RemoveSDigits() ;
149
150}
151
152//____________________________________________________________________________
153void AliPHOSDigitizer::Digitize(const Int_t event)
154{
155
156 // Makes the digitization of the collected summable digits.
157 // It first creates the array of all PHOS modules
158 // filled with noise (different for EMC, CPV and PPSD) and
159 // then adds contributions from SDigits.
160 // This design avoids scanning over the list of digits to add
161 // contribution to new SDigits only.
162
163 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
164 TClonesArray * digits = gime->Digits(GetName()) ;
165
166 digits->Clear() ;
167
168 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
169
170 //Making digits with noise, first EMC
171 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
172
173 Int_t nCPV ;
174 Int_t absID ;
175 TString name = geom->GetName() ;
176
177 nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
178 geom->GetNModules() ;
179
180 digits->Expand(nCPV) ;
181
182 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
183 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
184 if ( !sDigitizer) {
185 cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
186 abort() ;
187 }
188
189 // loop through the sdigits posted to the White Board and add them to the noise
190 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
191 TIter next(folderslist) ;
192 TFolder * folder = 0 ;
193 TClonesArray * sdigits = 0 ;
194 Int_t input = 0 ;
195 TObjArray * sdigArray = new TObjArray(2) ;
196 while ( (folder = (TFolder*)next()) )
197 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
198 TString fileName(folder->GetName()) ;
199 fileName.ReplaceAll("_","/") ;
200 cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits "
201 << GetName() << " from " << fileName << endl ;
202 sdigArray->AddAt(sdigits, input) ;
203 input++ ;
204 }
205
206 //Find the first crystall with signal
207 Int_t nextSig = 200000 ;
208 Int_t i;
209 for(i=0; i<input; i++){
210 sdigits = (TClonesArray *)sdigArray->At(i) ;
211 if ( !sdigits->GetEntriesFast() )
212 continue ;
213 Int_t curNext = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
214 if(curNext < nextSig)
215 nextSig = curNext ;
216 }
217
218 TArrayI index(input) ;
219 index.Reset() ; //Set all indexes to zero
220
221 AliPHOSDigit * digit ;
222 AliPHOSDigit * curSDigit ;
223
224 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
225
226 //Put Noise contribution
227 for(absID = 1; absID <= nEMC; absID++){
228 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
229 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
230 //look if we have to add signal?
231 digit = (AliPHOSDigit *) digits->At(absID-1) ;
232
233 if(absID==nextSig){
234 //Add SDigits from all inputs
235 ticks->Clear() ;
236 Int_t contrib = 0 ;
237 Float_t a = digit->GetAmp() ;
238 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
239 //Mark the beginnign of the signal
240 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
241 //Mark the end of the ignal
242 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
243
244 //loop over inputs
245 for(i=0; i<input; i++){
246 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
247 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
248 else
249 curSDigit = 0 ;
250 //May be several digits will contribute from the same input
251 while(curSDigit && curSDigit->GetId() == absID){
252 //Shift primary to separate primaries belonging different inputs
253 Int_t primaryoffset ;
254 if(fManager)
255 primaryoffset = fManager->GetMask(i) ;
256 else
257 primaryoffset = 10000000*i ;
258 curSDigit->ShiftPrimary(primaryoffset) ;
259
260 a = curSDigit->GetAmp() ;
261 b = a /fTimeSignalLength ;
262 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
263 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
264
265 *digit = *digit + *curSDigit ; //add energies
266
267 index[i]++ ;
268 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
269 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
270 else
271 curSDigit = 0 ;
272 }
273 }
274
275 //calculate and set time
276 Float_t time = FrontEdgeTime(ticks) ;
277 digit->SetTime(time) ;
278
279 //Find next signal module
280 nextSig = 200000 ;
281 for(i=0; i<input; i++){
282 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
283 Int_t curNext = nextSig ;
284 if(sdigits->GetEntriesFast() > index[i] ){
285 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
286
287 }
288 if(curNext < nextSig) nextSig = curNext ;
289 }
290 }
291 }
292
293 ticks->Delete() ;
294 delete ticks ;
295
296
297 //Now CPV digits (different noise and no timing)
298 for(absID = nEMC+1; absID <= nCPV; absID++){
299 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
300 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
301 //look if we have to add signal?
302 if(absID==nextSig){
303 digit = (AliPHOSDigit *) digits->At(absID-1) ;
304 //Add SDigits from all inputs
305 for(i=0; i<input; i++){
306 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
307 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
308 else
309 curSDigit = 0 ;
310
311 //May be several digits will contribute from the same input
312 while(curSDigit && curSDigit->GetId() == absID){
313 //Shift primary to separate primaries belonging different inputs
314 Int_t primaryoffset ;
315 if(fManager)
316 primaryoffset = fManager->GetMask(i) ;
317 else
318 primaryoffset = 10000000*i ;
319 curSDigit->ShiftPrimary(primaryoffset) ;
320
321 //add energies
322 *digit = *digit + *curSDigit ;
323 index[i]++ ;
324 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
325 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
326 else
327 curSDigit = 0 ;
328 }
329 }
330
331 //Find next signal module
332 nextSig = 200000 ;
333 for(i=0; i<input; i++){
334 sdigits = (TClonesArray *)sdigArray->At(i) ;
335 Int_t curNext = nextSig ;
336 if(sdigits->GetEntriesFast() > index[i] )
337 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
338 if(curNext < nextSig) nextSig = curNext ;
339 }
340
341 }
342 }
343 delete sdigArray ; //We should not delete its contents
344
345
346
347 //remove digits below thresholds
348 for(i = 0; i < nEMC ; i++){
349 digit = (AliPHOSDigit*) digits->At(i) ;
350 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
351 digits->RemoveAt(i) ;
352 else
353 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
354 }
355
356
357 for(i = nEMC; i < nCPV ; i++)
358 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(i))->GetAmp()) < fCPVDigitThreshold)
359 digits->RemoveAt(i) ;
360
361 digits->Compress() ;
362
363 Int_t ndigits = digits->GetEntriesFast() ;
364 digits->Expand(ndigits) ;
365
366 //Set indexes in list of digits and make true digitization of the energy
367 for (i = 0 ; i < ndigits ; i++) {
368 AliPHOSDigit * digit = (AliPHOSDigit *) digits->At(i) ;
369 digit->SetIndexInList(i) ;
370 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
371 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
372 }
373
374}
375//____________________________________________________________________________
376Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
377{
378 Int_t chanel ;
379 if(absId <= fEmcCrystals){ //digitize as EMC
380 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
381 if(chanel > fNADCemc ) chanel = fNADCemc ;
382 }
383 else{ //Digitize as CPV
384 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
385 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
386 }
387 return chanel ;
388}
389//____________________________________________________________________________
390void AliPHOSDigitizer::Exec(Option_t *option)
391{
392 // Managing method
393
394 if(strcmp(GetName(), "") == 0 )
395 Init() ;
396
397 if (strstr(option,"print")) {
398 Print("");
399 return ;
400 }
401
402 if(strstr(option,"tim"))
403 gBenchmark->Start("PHOSDigitizer");
404
405 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
406
407 Int_t nevents ;
408
409 TTree * treeD ;
410
411 if(fManager){
412 treeD = fManager->GetTreeD() ;
413 nevents = 1 ; // Will process only one event
414 }
415 else {
416 gAlice->GetEvent(0) ;
417 nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
418 treeD=gAlice->TreeD() ;
419 }
420
421
422 //Check, if this branch already exits
423 if (treeD) {
424 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
425 TIter next(lob) ;
426 TBranch * branch = 0 ;
427 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
428
429 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
430 if ( (strcmp(branch->GetName(), "PHOS")==0) &&
431 (strcmp(branch->GetTitle(), GetName())==0) )
432 phosfound = kTRUE ;
433
434 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
435 (strcmp(branch->GetTitle(), GetName())==0) )
436 digitizerfound = kTRUE ;
437 }
438
439 if ( phosfound ) {
440 cerr << "WARNING: AliPHOSDigitizer -> Digits branch with name " << GetName()
441 << " already exits" << endl ;
442 return ;
443 }
444 if ( digitizerfound ) {
445 cerr << "WARNING: AliPHOSDigitizer -> Digitizer branch with name " << GetName()
446 << " already exits" << endl ;
447 return ;
448 }
449 }
450
451 Int_t ievent ;
452
453 for(ievent = 0; ievent < nevents; ievent++){
454
455 if(fManager){
456 Int_t input ;
457 for(input = 0 ; input < fManager->GetNinputs(); input ++){
458 TTree * treeS = fManager->GetInputTreeS(input) ;
459 if(!treeS){
460 cerr << "AliPHOSDigitizer -> No Input " << endl ;
461 return ;
462 }
463 gime->ReadTreeS(treeS,input) ;
464 }
465 }
466 else
467 gime->Event(ievent,"S") ;
468
469 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
470
471 WriteDigits(ievent) ;
472
473 if(strstr(option,"deb"))
474 PrintDigits(option);
475
476 //increment the total number of Digits per run
477 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
478 }
479
480 if (fSplitFile)
481 if ( fSplitFile->IsOpen() )
482 fSplitFile->Close() ;
483
484 if(strstr(option,"tim")){
485 gBenchmark->Stop("PHOSDigitizer");
486 cout << "AliPHOSDigitizer:" << endl ;
487 cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for Digitizing "
488 << gBenchmark->GetCpuTime("PHOSDigitizer")/nevents << " seconds per event " << endl ;
489 cout << endl ;
490 }
491
492}
493
494//____________________________________________________________________________
495Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks)
496{ //
497 ticks->Sort() ; //Sort in accordance with times of ticks
498 TIter it(ticks) ;
499 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
500 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
501
502 AliPHOSTick * t ;
503 while((t=(AliPHOSTick*) it.Next())){
504 if(t->GetTime() < time) //This tick starts before crossing
505 *ctick+=*t ;
506 else
507 return time ;
508
509 time = ctick->CrossingTime(fTimeThreshold) ;
510 }
511 return time ;
512}
513//____________________________________________________________________________
514Bool_t AliPHOSDigitizer::Init()
515{
516 fPinNoise = 0.004 ;
517 fEMCDigitThreshold = 0.012 ;
518 fCPVNoise = 0.01;
519 fCPVDigitThreshold = 0.09 ;
520 fTimeResolution = 0.5e-9 ;
521 fTimeSignalLength = 1.0e-9 ;
522 fDigitsInRun = 0 ;
523 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
524 fADCpedestalEmc = 0.005 ; //
525 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
526
527 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
528 fADCpedestalCpv = 0.012 ; //
529 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
530
531 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
532
533 if(fManager)
534 SetTitle("aliroot") ;
535 else if (strcmp(GetTitle(),"")==0)
536 SetTitle("galice.root") ;
537
538 if( strcmp(GetName(), "") == 0 )
539 SetName("Default") ;
540
541 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
542 if ( gime == 0 ) {
543 cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
544 return kFALSE;
545 }
546
547 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
548 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
549
550 // Post Digits to the white board
551 gime->PostDigits(GetName() ) ;
552
553 // Post Digitizer to the white board
554 gime->PostDigitizer(this) ;
555
556 //Mark that we will use current header file
557 if(!fManager){
558 gime->PostSDigits(GetName(),GetTitle()) ;
559 gime->PostSDigitizer(GetName(),GetTitle()) ;
560 }
561 return kTRUE ;
562}
563
564//__________________________________________________________________
565void AliPHOSDigitizer::MixWith(const char* headerFile)
566{
567 // Allows to produce digits by superimposing background and signal event.
568 // It is assumed, that headers file with SIGNAL events is opened in
569 // the constructor.
570 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
571 // Thus we avoid writing (changing) huge and expensive
572 // backgound files: all output will be writen into SIGNAL, i.e.
573 // opened in constructor file.
574 //
575 // One can open as many files to mix with as one needs.
576 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
577 // can be mixed.
578
579 if( strcmp(GetName(), "") == 0 )
580 Init() ;
581
582 if(fManager){
583 cout << "Can not use this method under AliRunDigitizer " << endl ;
584 return ;
585 }
586
587 // check if the specified SDigits do not already exist on the White Board:
588 // //Folders/RunMC/Event/Data/PHOS/SDigits/headerFile/sdigitsname
589
590 TString path = "Folders/RunMC/Event/Data/PHOS/SDigits" ;
591 path += headerFile ;
592 path += "/" ;
593 path += GetName() ;
594 if ( gROOT->FindObjectAny(path.Data()) ) {
595 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
596 return;
597 }
598
599 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
600 gime->PostSDigits(GetName(),headerFile) ;
601
602 // check if the requested file is already open or exist and if SDigits Branch exist
603 TFile * file = (TFile*)gROOT->FindObject(headerFile);
604 if ( !file ) {
605 file = new TFile(headerFile, "READ") ;
606 if (!file) {
607 cerr << "ERROR: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
608 return ;
609 }
610 }
611
612}
613
614//__________________________________________________________________
615void AliPHOSDigitizer::SetSplitFile(const TString splitFileName)
616{
617 // Diverts the Digits in a file separate from the hits file
618
619 // I guess it is not going to work if we do merging
620 if (fManager) {
621 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> Not yet available in case of merging activated " << endl ;
622 return ;
623 }
624
625 TDirectory * cwd = gDirectory ;
626 if ( !(gAlice->GetTreeDFileName() == splitFileName) ) {
627 if (gAlice->GetTreeDFile() )
628 gAlice->GetTreeDFile()->Close() ;
629 }
630
631 fSplitFile = gAlice->InitTreeFile("D",splitFileName.Data());
632 fSplitFile->cd() ;
633 if ( !fSplitFile->Get("gAlice") )
634 gAlice->Write();
635
636 TTree *treeE = gAlice->TreeE();
637 if (!treeE) {
638 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> No TreeE found "<<endl;
639 abort() ;
640 }
641
642 // copy TreeE
643 if ( !fSplitFile->Get("TreeE") ) {
644 AliHeader *header = new AliHeader();
645 treeE->SetBranchAddress("Header", &header);
646 treeE->SetBranchStatus("*",1);
647 TTree *treeENew = treeE->CloneTree();
648 treeENew->Write();
649 }
650
651 // copy AliceGeom
652 if ( !fSplitFile->Get("AliceGeom") ) {
653 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
654 if (!AliceGeom) {
655 cerr << "ERROR: AliPHOSDigitizer::SetSplitFile -> AliceGeom was not found in the input file "<<endl;
656 abort() ;
657 }
658 AliceGeom->Write();
659 }
660
661 gAlice->MakeTree("D",fSplitFile);
662 cwd->cd() ;
663 cout << "INFO: AliPHOSDigitizer::SetSPlitMode -> Digits will be stored in " << splitFileName.Data() << endl ;
664}
665
666//__________________________________________________________________
667void AliPHOSDigitizer::Print(Option_t* option)const {
668 // Print Digitizer's parameters
669 if( strcmp(GetName(), "") != 0 ){
670
671 cout << "------------------- "<< GetName() << " -------------" << endl ;
672 cout << "Digitizing sDigits from file(s): " <<endl ;
673
674 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("Folders/RunMC/Event/Data/PHOS/SDigits"))->GetListOfFolders() ;
675 TIter next(folderslist) ;
676 TFolder * folder = 0 ;
677
678 while ( (folder = (TFolder*)next()) ) {
679 if ( folder->FindObject(GetName()) )
680 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
681 }
682 cout << endl ;
683 cout << "Writing digits to " << GetTitle() << endl ;
684
685 cout << endl ;
686 cout << "With following parameters: " << endl ;
687 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
688 cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl ; ;
689 cout << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
690 cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
691 cout << "---------------------------------------------------" << endl ;
692 }
693 else
694 cout << "AliPHOSDigitizer not initialized " << endl ;
695
696}
697
698//__________________________________________________________________
699void AliPHOSDigitizer::PrintDigits(Option_t * option){
700 // Print a table of digits
701
702 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
703 TClonesArray * digits = gime->Digits() ;
704
705 cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
706 cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
707 cout << endl ;
708 if(strstr(option,"all")||strstr(option,"EMC")){
709
710 //loop over digits
711 AliPHOSDigit * digit;
712 cout << "EMC digits (with primaries): " << endl ;
713 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
714 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
715 Int_t index ;
716 for (index = 0 ; (index < digits->GetEntriesFast()) &&
717 (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
718 digit = (AliPHOSDigit * ) digits->At(index) ;
719 if(digit->GetNprimary() == 0) continue;
720 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
721 << setw(6) << digit->GetIndexInList() << " "
722 << setw(5) << digit->GetNprimary() <<" ";
723
724 Int_t iprimary;
725 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
726 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
727 cout << endl;
728 }
729 cout << endl;
730 }
731
732 if(strstr(option,"all")||strstr(option,"CPV")){
733
734 //loop over CPV digits
735 AliPHOSDigit * digit;
736 cout << "CPV digits: " << endl ;
737 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
738 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
739 Int_t index ;
740 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
741 digit = (AliPHOSDigit * ) digits->At(index) ;
742 if(digit->GetId() > maxEmc){
743 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
744 << setw(6) << digit->GetIndexInList() << " "
745 << setw(5) << digit->GetNprimary() <<" ";
746
747 Int_t iprimary;
748 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
749 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
750 cout << endl;
751 }
752 }
753 }
754
755}
756
757//__________________________________________________________________
758void AliPHOSDigitizer::SetSDigitsBranch(const char* title)
759{
760 // we set title (comment) of the SDigits branch in the first! header file
761 if( strcmp(GetName(), "") == 0 )
762 Init() ;
763
764 AliPHOSGetter::GetInstance()->SDigits()->SetName(title) ;
765
766}
767//__________________________________________________________________
768Float_t AliPHOSDigitizer::TimeOfNoise(void)
769{ // Calculates the time signal generated by noise
770 //to be rewritten, now returns just big number
771 return 1. ;
772
773}
774//____________________________________________________________________________
775void AliPHOSDigitizer::Reset()
776{
777 // sets current event number to the first simulated event
778
779 if( strcmp(GetName(), "") == 0 )
780 Init() ;
781
782 // Int_t inputs ;
783// for(inputs = 0; inputs < fNinputs ;inputs++)
784// fIevent->AddAt(-1, inputs ) ;
785
786}
787
788//____________________________________________________________________________
789void AliPHOSDigitizer::WriteDigits(Int_t event)
790{
791
792 // Makes TreeD in the output file.
793 // Check if branch already exists:
794 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
795 // already existing branches.
796 // else creates branch with Digits, named "PHOS", title "...",
797 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
798 // and names of files, from which digits are made.
799
800 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
801 const TClonesArray * digits = gime->Digits(GetName()) ;
802 TTree * treeD ;
803
804
805 if(fManager)
806 treeD = fManager->GetTreeD() ;
807 else {
808 if (!gAlice->TreeD() )
809 gAlice->MakeTree("D", fSplitFile);
810 treeD = gAlice->TreeD();
811 }
812
813
814 // -- create Digits branch
815 Int_t bufferSize = 32000 ;
816 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
817 digitsBranch->SetTitle(GetName());
818
819 // -- Create Digitizer branch
820 Int_t splitlevel = 0 ;
821 AliPHOSDigitizer * d = gime->Digitizer(GetName()) ;
822 TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
823 digitizerBranch->SetTitle(GetName());
824
825 digitsBranch->Fill() ;
826 digitizerBranch->Fill() ;
827 treeD->AutoSave() ;
828
829}