Typo corrected
[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 ---
68
69// --- AliRoot header files ---
8cb3533f 70#include "AliRun.h"
b3690abb 71#include "AliHeader.h"
ea5f3389 72#include "AliStream.h"
3f81a70b 73#include "AliRunDigitizer.h"
990119d6 74#include "AliPHOSDigit.h"
dd5c4038 75#include "AliPHOS.h"
7b7c1533 76#include "AliPHOSGetter.h"
990119d6 77#include "AliPHOSDigitizer.h"
78#include "AliPHOSSDigitizer.h"
8cb3533f 79#include "AliPHOSGeometry.h"
7437a0f7 80#include "AliPHOSTick.h"
990119d6 81
82ClassImp(AliPHOSDigitizer)
83
84
85//____________________________________________________________________________
3f81a70b 86 AliPHOSDigitizer::AliPHOSDigitizer()
990119d6 87{
88 // ctor
8d0f3f77 89 InitParameters() ;
9bd3caba 90 fDefaultInit = kTRUE ;
fbf811ec 91 fManager = 0 ; // We work in the standalong mode
548f0134 92
9bd3caba 93 }
3f81a70b 94
95//____________________________________________________________________________
fbf811ec 96AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile, const char * name, const Bool_t toSplit)
3f81a70b 97{
98 // ctor
ea5f3389 99
3f81a70b 100 SetTitle(headerFile) ;
38bb0fd5 101 SetName(name) ;
9891b76e 102 fManager = 0 ; // We work in the standalong mode
64c73770 103 fSplitFile= 0 ;
8d0f3f77 104 InitParameters() ;
fbf811ec 105 fToSplit = toSplit ;
3f81a70b 106 Init() ;
92f521a9 107 fDefaultInit = kFALSE ;
990119d6 108}
109
990119d6 110//____________________________________________________________________________
9891b76e 111AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
990119d6 112{
113 // ctor
fbf811ec 114 SetTitle(ard->GetInputFileName(0,0)) ;
b22e4735 115 InitParameters() ;
fbf811ec 116 fDefaultInit = kFALSE ;
117 fSplitFile = 0 ;
118
119 if (ard->GetOutputFile()) {
120 SetName(ard->GetOutputFile().Data());
121 fToSplit = kTRUE ;
122 } else {
123 SetName("Default") ;
124 fToSplit = kFALSE ;
125 }
990119d6 126}
127
128//____________________________________________________________________________
129 AliPHOSDigitizer::~AliPHOSDigitizer()
130{
131 // dtor
548f0134 132
79bb1b62 133 fSplitFile = 0 ;
990119d6 134}
135
136//____________________________________________________________________________
7b7c1533 137void AliPHOSDigitizer::Digitize(const Int_t event)
a4e98857 138{
139
140 // Makes the digitization of the collected summable digits.
141 // It first creates the array of all PHOS modules
142 // filled with noise (different for EMC, CPV and PPSD) and
143 // then adds contributions from SDigits.
144 // This design avoids scanning over the list of digits to add
145 // contribution to new SDigits only.
990119d6 146
7b7c1533 147 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
38bb0fd5 148 TClonesArray * digits = gime->Digits(GetName()) ;
7b7c1533 149
150 digits->Clear() ;
990119d6 151
7b7c1533 152 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 153 //Making digits with noise, first EMC
154 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
155
156 Int_t nCPV ;
990119d6 157 Int_t absID ;
158 TString name = geom->GetName() ;
159
9688c1dd 160 nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
161 geom->GetNModules() ;
8cb3533f 162
9688c1dd 163 digits->Expand(nCPV) ;
8cb3533f 164
7b7c1533 165 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
92f521a9 166 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
7b7c1533 167 if ( !sDigitizer) {
21cd0c07 168 Error("Digitize", "SDigitizer with name %s not found", GetName() ) ;
7b7c1533 169 abort() ;
170 }
9688c1dd 171
7b7c1533 172 // loop through the sdigits posted to the White Board and add them to the noise
7a9d98f9 173 TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
7b7c1533 174 TIter next(folderslist) ;
175 TFolder * folder = 0 ;
3f81a70b 176 TClonesArray * sdigits = 0 ;
177 Int_t input = 0 ;
9688c1dd 178 TObjArray * sdigArray = new TObjArray(2) ;
38bb0fd5 179 while ( (folder = (TFolder*)next()) ) {
3f81a70b 180 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
54b82aa4 181 TString fileName(folder->GetName()) ;
182 fileName.ReplaceAll("_","/") ;
21cd0c07 183// Info("Digitize", "Adding SDigits %s from %s", GetName(), fileName() ) ;
9688c1dd 184 sdigArray->AddAt(sdigits, input) ;
185 input++ ;
186 }
38bb0fd5 187 }
9688c1dd 188
7a9d98f9 189 //Find the first crystall with signal
9688c1dd 190 Int_t nextSig = 200000 ;
191 Int_t i;
192 for(i=0; i<input; i++){
193 sdigits = (TClonesArray *)sdigArray->At(i) ;
a6eedfad 194 if ( !sdigits->GetEntriesFast() )
7a9d98f9 195 continue ;
9688c1dd 196 Int_t curNext = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
7a9d98f9 197 if(curNext < nextSig)
198 nextSig = curNext ;
9688c1dd 199 }
7437a0f7 200
9688c1dd 201 TArrayI index(input) ;
202 index.Reset() ; //Set all indexes to zero
203
204 AliPHOSDigit * digit ;
205 AliPHOSDigit * curSDigit ;
206
7437a0f7 207 TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
208
9688c1dd 209 //Put Noise contribution
210 for(absID = 1; absID <= nEMC; absID++){
211 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
212 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
213 //look if we have to add signal?
b3690abb 214 digit = (AliPHOSDigit *) digits->At(absID-1) ;
215
9688c1dd 216 if(absID==nextSig){
217 //Add SDigits from all inputs
7437a0f7 218 ticks->Clear() ;
9688c1dd 219 Int_t contrib = 0 ;
7437a0f7 220 Float_t a = digit->GetAmp() ;
221 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
222 //Mark the beginnign of the signal
223 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
224 //Mark the end of the ignal
225 new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
226
9688c1dd 227 //loop over inputs
228 for(i=0; i<input; i++){
5c9dfca0 229 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
230 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
231 else
232 curSDigit = 0 ;
9688c1dd 233 //May be several digits will contribute from the same input
234 while(curSDigit && curSDigit->GetId() == absID){
235 //Shift primary to separate primaries belonging different inputs
236 Int_t primaryoffset ;
9891b76e 237 if(fManager)
238 primaryoffset = fManager->GetMask(i) ;
9688c1dd 239 else
21c293b7 240 primaryoffset = 10000000*i ;
241 curSDigit->ShiftPrimary(primaryoffset) ;
7437a0f7 242
243 a = curSDigit->GetAmp() ;
244 b = a /fTimeSignalLength ;
245 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
246 new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
9688c1dd 247
248 *digit = *digit + *curSDigit ; //add energies
7437a0f7 249
9688c1dd 250 index[i]++ ;
5c9dfca0 251 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
252 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
253 else
254 curSDigit = 0 ;
9688c1dd 255 }
256 }
257
258 //calculate and set time
7437a0f7 259 Float_t time = FrontEdgeTime(ticks) ;
9688c1dd 260 digit->SetTime(time) ;
7437a0f7 261
9688c1dd 262 //Find next signal module
7437a0f7 263 nextSig = 200000 ;
9688c1dd 264 for(i=0; i<input; i++){
265 sdigits = ((TClonesArray *)sdigArray->At(i)) ;
5c9dfca0 266 Int_t curNext = nextSig ;
267 if(sdigits->GetEntriesFast() > index[i] ){
268 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
269
270 }
9688c1dd 271 if(curNext < nextSig) nextSig = curNext ;
7b7c1533 272 }
273 }
990119d6 274 }
3f81a70b 275
7437a0f7 276 ticks->Delete() ;
277 delete ticks ;
9688c1dd 278
279
280 //Now CPV digits (different noise and no timing)
281 for(absID = nEMC+1; absID <= nCPV; absID++){
282 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
283 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
284 //look if we have to add signal?
285 if(absID==nextSig){
286 digit = (AliPHOSDigit *) digits->At(absID-1) ;
287 //Add SDigits from all inputs
288 for(i=0; i<input; i++){
5c9dfca0 289 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
290 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
291 else
292 curSDigit = 0 ;
a6eedfad 293
9688c1dd 294 //May be several digits will contribute from the same input
295 while(curSDigit && curSDigit->GetId() == absID){
296 //Shift primary to separate primaries belonging different inputs
297 Int_t primaryoffset ;
9891b76e 298 if(fManager)
299 primaryoffset = fManager->GetMask(i) ;
9688c1dd 300 else
301 primaryoffset = 10000000*i ;
302 curSDigit->ShiftPrimary(primaryoffset) ;
303
304 //add energies
305 *digit = *digit + *curSDigit ;
306 index[i]++ ;
5c9dfca0 307 if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
308 curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
309 else
310 curSDigit = 0 ;
9688c1dd 311 }
312 }
a6eedfad 313
9688c1dd 314 //Find next signal module
a6eedfad 315 nextSig = 200000 ;
9688c1dd 316 for(i=0; i<input; i++){
317 sdigits = (TClonesArray *)sdigArray->At(i) ;
5c9dfca0 318 Int_t curNext = nextSig ;
319 if(sdigits->GetEntriesFast() > index[i] )
320 curNext = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
9688c1dd 321 if(curNext < nextSig) nextSig = curNext ;
322 }
323
324 }
325 }
9688c1dd 326 delete sdigArray ; //We should not delete its contents
327
328
329
990119d6 330 //remove digits below thresholds
a6eedfad 331 for(i = 0; i < nEMC ; i++){
548f0134 332 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
aaf8a71c 333 if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
a6eedfad 334 digits->RemoveAt(i) ;
aaf8a71c 335 else
336 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
337 }
338
a6eedfad 339
340 for(i = nEMC; i < nCPV ; i++)
341 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(i))->GetAmp()) < fCPVDigitThreshold)
342 digits->RemoveAt(i) ;
9688c1dd 343
7b7c1533 344 digits->Compress() ;
990119d6 345
7b7c1533 346 Int_t ndigits = digits->GetEntriesFast() ;
7b7c1533 347 digits->Expand(ndigits) ;
990119d6 348
3758d9fc 349 //Set indexes in list of digits and make true digitization of the energy
990119d6 350 for (i = 0 ; i < ndigits ; i++) {
548f0134 351 digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
990119d6 352 digit->SetIndexInList(i) ;
f672adc8 353 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
3758d9fc 354 digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
990119d6 355 }
990119d6 356
7b7c1533 357}
548f0134 358
3758d9fc 359//____________________________________________________________________________
360Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
361{
362 Int_t chanel ;
363 if(absId <= fEmcCrystals){ //digitize as EMC
364 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
365 if(chanel > fNADCemc ) chanel = fNADCemc ;
366 }
367 else{ //Digitize as CPV
368 chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
369 if(chanel > fNADCcpv ) chanel = fNADCcpv ;
370 }
371 return chanel ;
372}
548f0134 373
7b7c1533 374//____________________________________________________________________________
375void AliPHOSDigitizer::Exec(Option_t *option)
376{
377 // Managing method
990119d6 378
f672adc8 379 if(strcmp(GetName(), "") == 0 )
7b7c1533 380 Init() ;
7b7c1533 381 if (strstr(option,"print")) {
382 Print("");
383 return ;
8cb3533f 384 }
990119d6 385
7b7c1533 386 if(strstr(option,"tim"))
387 gBenchmark->Start("PHOSDigitizer");
8cb3533f 388
3f81a70b 389 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
390
391 Int_t nevents ;
392
393 TTree * treeD ;
394
9891b76e 395 if(fManager){
396 treeD = fManager->GetTreeD() ;
3f81a70b 397 nevents = 1 ; // Will process only one event
8cb3533f 398
fbf811ec 399 //Check, if this branch already exits
400 if (treeD) {
401 TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
402 TIter next(lob) ;
403 TBranch * branch = 0 ;
404 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
b3690abb 405
fbf811ec 406 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
407 if ( (strcmp(branch->GetName(), "PHOS")==0) &&
408 (strcmp(branch->GetTitle(), GetName())==0) )
409 phosfound = kTRUE ;
410
411 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
412 (strcmp(branch->GetTitle(), GetName())==0) )
413 digitizerfound = kTRUE ;
414 }
415
416 if ( phosfound ) {
21cd0c07 417 Error("Exec", "Digits branch with name %s already exists", GetName() ) ;
fbf811ec 418 return ;
419 }
420 if ( digitizerfound ) {
21cd0c07 421 Error("Exec", "Digitizer branch with name %s already exists", GetName() );
fbf811ec 422 return ;
423 }
b3690abb 424 }
8cb3533f 425 }
fbf811ec 426 else { //PHOS standalone
427 if(gime->BranchExists("Digits") )
428 return ;
429 nevents=gime->MaxEvent() ;
430 }
431
7b7c1533 432 Int_t ievent ;
b3690abb 433
7b7c1533 434 for(ievent = 0; ievent < nevents; ievent++){
b3690abb 435
9891b76e 436 if(fManager){
b22e4735 437
3f81a70b 438 Int_t input ;
9891b76e 439 for(input = 0 ; input < fManager->GetNinputs(); input ++){
440 TTree * treeS = fManager->GetInputTreeS(input) ;
3f81a70b 441 if(!treeS){
21cd0c07 442 Error("Exec", "No Input") ;
3f81a70b 443 return ;
444 }
445 gime->ReadTreeS(treeS,input) ;
446 }
b22e4735 447
3f81a70b 448 }
449 else
450 gime->Event(ievent,"S") ;
990119d6 451
7b7c1533 452 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
3f81a70b 453
7b7c1533 454 WriteDigits(ievent) ;
3f81a70b 455
01a599c9 456 if(strstr(option,"deb"))
457 PrintDigits(option);
94de8339 458
459 //increment the total number of Digits per run
460 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
01a599c9 461 }
8d0f3f77 462
8cb3533f 463 if(strstr(option,"tim")){
464 gBenchmark->Stop("PHOSDigitizer");
21cd0c07 465 TString message ;
466 message = " took %f seconds for Digitizing %f seconds per event\n" ;
467 Info("Exec", message.Data(),
468 gBenchmark->GetCpuTime("PHOSDigitizer"),
469 gBenchmark->GetCpuTime("PHOSDigitizer")/nevents );
470 }
990119d6 471}
472
7b7c1533 473//____________________________________________________________________________
7437a0f7 474Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks)
9688c1dd 475{ //
7437a0f7 476 ticks->Sort() ; //Sort in accordance with times of ticks
477 TIter it(ticks) ;
478 AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
479 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
480
481 AliPHOSTick * t ;
482 while((t=(AliPHOSTick*) it.Next())){
483 if(t->GetTime() < time) //This tick starts before crossing
484 *ctick+=*t ;
485 else
486 return time ;
487
488 time = ctick->CrossingTime(fTimeThreshold) ;
9688c1dd 489 }
490 return time ;
9688c1dd 491}
8d0f3f77 492
9688c1dd 493//____________________________________________________________________________
3f81a70b 494Bool_t AliPHOSDigitizer::Init()
a4e98857 495{
fbf811ec 496 // Makes all memory allocations
497
498 if( strcmp(GetTitle(), "") == 0 )
499 SetTitle("galice.root") ;
8d0f3f77 500
fbf811ec 501 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName(), fToSplit) ;
8d0f3f77 502 if ( gime == 0 ) {
21cd0c07 503 Error("Init", "Could not obtain the Getter object !") ;
8d0f3f77 504 return kFALSE;
505 }
506
507 const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
b22e4735 508
8d0f3f77 509 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
510
511 // Post Digits to the white board
512 gime->PostDigits(GetName() ) ;
513
514 // Post Digitizer to the white board
515 gime->PostDigitizer(this) ;
fbf811ec 516
517 fSplitFile = 0 ;
518 if(fToSplit){
519 // construct the name of the file as /path/PHOS.SDigits.root
520 //First - extract full path if necessary
521 TString digitsFileName(GetTitle()) ;
522 Ssiz_t islash = digitsFileName.Last('/') ;
523 if(islash<digitsFileName.Length())
524 digitsFileName.Remove(islash+1,digitsFileName.Length()) ;
525 else
526 digitsFileName="" ;
527 // Next - append the file name
528 digitsFileName+="PHOS.Digits." ;
529 if((strcmp(GetName(),"Default")!=0)&&(strcmp(GetName(),"")!=0)){
530 digitsFileName+=GetName() ;
531 digitsFileName+="." ;
532 }
533 digitsFileName+="root" ;
534 // Finally - check if the file already opened or open the file
535 fSplitFile = static_cast<TFile*>(gROOT->GetFile(digitsFileName.Data()));
536 if(!fSplitFile)
537 fSplitFile = TFile::Open(digitsFileName.Data(),"update") ;
538 }
8d0f3f77 539
540 //Mark that we will use current header file
541 if(!fManager){
542 gime->PostSDigits(GetName(),GetTitle()) ;
543 gime->PostSDigitizer(GetName(),GetTitle()) ;
544 }
545 return kTRUE ;
546}
547
548//____________________________________________________________________________
549void AliPHOSDigitizer::InitParameters()
550{
c74936f1 551 fPinNoise = 0.004 ;
552 fEMCDigitThreshold = 0.012 ;
3758d9fc 553 fCPVNoise = 0.01;
554 fCPVDigitThreshold = 0.09 ;
aaf8a71c 555 fTimeResolution = 0.5e-9 ;
3758d9fc 556 fTimeSignalLength = 1.0e-9 ;
557 fDigitsInRun = 0 ;
558 fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
559 fADCpedestalEmc = 0.005 ; //
560 fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
561
562 fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
563 fADCpedestalCpv = 0.012 ; //
564 fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
565
566 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
8cb3533f 567
990119d6 568}
7b7c1533 569
990119d6 570//__________________________________________________________________
7b7c1533 571void AliPHOSDigitizer::MixWith(const char* headerFile)
a4e98857 572{
ba54256b 573 // Allows to produce digits by superimposing background and signal event.
bca3b32a 574 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 575 // the constructor.
576 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
577 // Thus we avoid writing (changing) huge and expensive
bca3b32a 578 // backgound files: all output will be writen into SIGNAL, i.e.
579 // opened in constructor file.
580 //
a4e98857 581 // One can open as many files to mix with as one needs.
7b7c1533 582 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
583 // can be mixed.
bca3b32a 584
7b7c1533 585 if( strcmp(GetName(), "") == 0 )
8cb3533f 586 Init() ;
587
9891b76e 588 if(fManager){
21cd0c07 589 Warning("MixWith", "Can not use this method under AliRunDigitizer\n" ) ;
3f81a70b 590 return ;
591 }
7b7c1533 592
593 // check if the specified SDigits do not already exist on the White Board:
aad24ee7 594 // //Folders/RunMC/Event/Data/PHOS/SDigits/headerFile/sdigitsname
990119d6 595
548f0134 596 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
597 TString path = gime->SDigitsFolder()->GetName() ;
598
599 // before it was ???? "Folders/RunMC/Event/Data/PHOS/SDigits" ;
7b7c1533 600 path += headerFile ;
601 path += "/" ;
3f81a70b 602 path += GetName() ;
7b7c1533 603 if ( gROOT->FindObjectAny(path.Data()) ) {
21cd0c07 604 Warning("MixWith", "Entry already exists, do not add\n" ) ;
7b7c1533 605 return;
990119d6 606 }
21cd0c07 607
3f81a70b 608 gime->PostSDigits(GetName(),headerFile) ;
609
7b7c1533 610 // check if the requested file is already open or exist and if SDigits Branch exist
611 TFile * file = (TFile*)gROOT->FindObject(headerFile);
612 if ( !file ) {
613 file = new TFile(headerFile, "READ") ;
614 if (!file) {
21cd0c07 615 Error("MixWith", "File %s does not exist\n", headerFile );
7b7c1533 616 return ;
617 }
618 }
990119d6 619}
7b7c1533 620
b3690abb 621//__________________________________________________________________
21cd0c07 622void AliPHOSDigitizer::Print(Option_t* option)const
623{
dd5c4038 624 // Print Digitizer's parameters
7b7c1533 625 if( strcmp(GetName(), "") != 0 ){
fbf811ec 626
21cd0c07 627 TString message("\n-------------------") ;
628 message += GetName() ;
629 message += "-------------\n" ;
6e89b8da 630
631 const Int_t nStreams = GetNInputStreams() ;
632 if (nStreams) {
633 Int_t index = 0 ;
21cd0c07 634 for (index = 0 ; index < nStreams ; index++) {
635 message += "Adding SDigits " ;
636 message += GetName() ;
637 message += "from " ;
638 message += fManager->GetInputFileName(index, 0) ;
639 }
640 message += "\nWriting digits to " ;
641 message += fManager->GetInputFileName(0, 0) ;
6e89b8da 642 } else {
21cd0c07 643 // AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
644 // gime->Folder("sdigits") ;
645 // TCollection * folderslist = gime->Folder("sdigits")->GetListOfFolders() ;
646 // TIter next(folderslist) ;
647 // TFolder * folder = 0 ;
ea5f3389 648
21cd0c07 649 // while ( (folder = (TFolder*)next()) ) {
650 // if ( folder->FindObject(GetName()) )
651 // }
652 message += "\nWriting digits to " ;
653 message += GetTitle() ;
ea5f3389 654 }
21cd0c07 655 message += "\nWith following parameters:\n" ;
656 message += " Electronics noise in EMC (fPinNoise) = %f\n" ;
657 message += " Threshold in EMC (fEMCDigitThreshold) = %f\n" ;
658 message += " Noise in CPV (fCPVNoise) = %f\n" ;
659 message += " Threshold in CPV (fCPVDigitThreshold) = %f\n" ;
660 message += "---------------------------------------------------\n" ;
661 Info("Print", message.Data(),
662 fPinNoise,
663 fEMCDigitThreshold,
664 fCPVNoise,
665 fCPVDigitThreshold ) ;
990119d6 666 }
8cb3533f 667 else
21cd0c07 668 Info("Print", "AliPHOSDigitizer not initialized\n" ) ;
8cb3533f 669
670}
21cd0c07 671
8cb3533f 672//__________________________________________________________________
21cd0c07 673 void AliPHOSDigitizer::PrintDigits(Option_t * option)
674{
675 // Print a table of digits
676
677 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
678 TClonesArray * digits = gime->Digits() ;
679
680 TString message ;
681 message = "event %d\n" ;
682 message += " Number of entries in Digits list %d\n" ;
683 Info("Print", message.Data(), gAlice->GetEvNumber(), digits->GetEntriesFast() ) ;
684 if(strstr(option,"all")||strstr(option,"EMC")){
8cb3533f 685
686 //loop over digits
687 AliPHOSDigit * digit;
21cd0c07 688 message = "EMC digits (with primaries):\n" ;
689 message += "Digit Id Amplitude Index Nprim Primaries list\n" ;
690 Info("Print", message.Data()) ;
9688c1dd 691 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
8cb3533f 692 Int_t index ;
a6eedfad 693 for (index = 0 ; (index < digits->GetEntriesFast()) &&
9688c1dd 694 (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 695 digit = (AliPHOSDigit * ) digits->At(index) ;
21cd0c07 696 if(digit->GetNprimary() == 0)
697 continue;
698 message = " %d %d %d %d\n" ;
699 Info("Print", message.Data(),
700 digit->GetId(),
701 digit->GetAmp(),
702 digit->GetIndexInList(),
703 digit->GetNprimary() ) ;
8cb3533f 704
705 Int_t iprimary;
21cd0c07 706 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
707 message = " %d\n" ;
708 Info("Print", message.Data(), digit->GetPrimary(iprimary+1) ) ;
709 }
710 }
9688c1dd 711 }
712
713 if(strstr(option,"all")||strstr(option,"CPV")){
8cb3533f 714
9688c1dd 715 //loop over CPV digits
716 AliPHOSDigit * digit;
21cd0c07 717 message = "CPV digits:\n" ;
718 message += "Digit Id Amplitude Index Nprim Primaries list\n" ;
719 Info("Print", message.Data()) ;
9688c1dd 720 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
721 Int_t index ;
a6eedfad 722 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
9688c1dd 723 digit = (AliPHOSDigit * ) digits->At(index) ;
724 if(digit->GetId() > maxEmc){
21cd0c07 725 message = " %d %d %d %d\n" ;
726 Info("Print", message.Data(),
727 digit->GetId(),
728 digit->GetAmp(),
729 digit->GetIndexInList(),
730 digit->GetNprimary() ) ;
9688c1dd 731
732 Int_t iprimary;
21cd0c07 733 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
734 message = " %d\n" ;
735 Info("Print", message.Data(), digit->GetPrimary(iprimary+1) ) ;
736 }
737 }
9688c1dd 738 }
8cb3533f 739 }
740}
7b7c1533 741
9688c1dd 742//__________________________________________________________________
743Float_t AliPHOSDigitizer::TimeOfNoise(void)
744{ // Calculates the time signal generated by noise
745 //to be rewritten, now returns just big number
746 return 1. ;
747
748}
7b7c1533 749
750//____________________________________________________________________________
751void AliPHOSDigitizer::WriteDigits(Int_t event)
752{
753
754 // Makes TreeD in the output file.
755 // Check if branch already exists:
756 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
757 // already existing branches.
758 // else creates branch with Digits, named "PHOS", title "...",
759 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
760 // and names of files, from which digits are made.
761
762 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
aad24ee7 763 const TClonesArray * digits = gime->Digits(GetName()) ;
8d0f3f77 764 TTree * treeD ;
fbf811ec 765
766 if(fManager)
767 treeD = fManager->GetTreeD() ;
768 else {
769 if((gAlice->TreeD() == 0) || (fSplitFile)) // we should not create TreeD if it is already here
770 gAlice->MakeTree("D", fSplitFile); // We overwrite TreeD in split file in the case of second reconstruction
771 if(fSplitFile)
772 fSplitFile->cd() ;
773 treeD = gAlice->TreeD();
774 }
775
7b7c1533 776 // -- create Digits branch
777 Int_t bufferSize = 32000 ;
ba54256b 778 TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
7b7c1533 779 digitsBranch->SetTitle(GetName());
fbf811ec 780
7b7c1533 781 // -- Create Digitizer branch
782 Int_t splitlevel = 0 ;
c2cd5471 783 const AliPHOSDigitizer * d = dynamic_cast<const AliPHOSDigitizer *>(gime->Digitizer()) ;
ba54256b 784 TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
7b7c1533 785 digitizerBranch->SetTitle(GetName());
b3690abb 786
ec85099a 787 digitsBranch->Fill() ;
64c73770 788 digitizerBranch->Fill() ;
b3690abb 789 treeD->AutoSave() ;
7b7c1533 790}