- fixed compilation warning
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigitizer.cxx
CommitLineData
61e0abb5 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//_________________________________________________________________________
ffa6d63b 19//
61e0abb5 20//////////////////////////////////////////////////////////////////////////////
ab6a174f 21// Class performs digitization of Summable digits from simulated data
ffa6d63b 22//
61e0abb5 23// In addition it performs mixing of summable digits from different events.
24//
25// For each event two branches are created in TreeD:
26// "EMCAL" - list of digits
27// "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
28//
29// Note, that one cset title for new digits branch, and repeat digitization with
30// another set of parameters.
31//
32// Examples of use:
33// root[0] AliEMCALDigitizer * d = new AliEMCALDigitizer() ;
34// root[1] d->ExecuteTask()
35// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
36// //Digitizes SDigitis in all events found in file galice.root
37//
38// root[2] AliEMCALDigitizer * d1 = new AliEMCALDigitizer("galice1.root") ;
39// // Will read sdigits from galice1.root
40// root[3] d1->MixWith("galice2.root")
41// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
42// // Reads another portion of sdigits from galice2.root
43// root[3] d1->MixWith("galice3.root")
44// // Reads another portion of sdigits from galice3.root
45// root[4] d->ExecuteTask("deb timing")
46// // Reads SDigits from files galice1.root, galice2.root ....
47// // mixes them and stores produced Digits in file galice1.root
48// // deb - prints number of produced digits
49// // deb all - prints list of produced digits
50// // timing - prints time used for digitization
ffa6d63b 51////////////////////////////////////////////////////////////////////////////////////
61e0abb5 52//
ffa6d63b 53//*-- Author: Sahal Yacoob (LBL)
814ad4bf 54// based on : AliEMCALDigitizer
05a92d59 55// Modif:
56// August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
57// of new IO (à la PHOS)
1963b290 58// November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry
59//_________________________________________________________________________________
61e0abb5 60
61// --- ROOT system ---
e939a978 62#include <TROOT.h>
63#include <TTree.h>
64#include <TSystem.h>
65#include <TBenchmark.h>
e939a978 66#include <TBrowser.h>
67#include <TObjectTable.h>
68#include <TRandom.h>
916f1e76 69#include <TF1.h>
21e7df44 70#include <cassert>
61e0abb5 71
72// --- AliRoot header files ---
b42d4197 73#include "AliLog.h"
e4dcc484 74#include "AliRun.h"
ea5f3389 75#include "AliRunDigitizer.h"
5dee926e 76#include "AliRunLoader.h"
53f1c378 77#include "AliCDBManager.h"
78#include "AliCDBEntry.h"
61e0abb5 79#include "AliEMCALDigit.h"
05a92d59 80#include "AliEMCAL.h"
5dee926e 81#include "AliEMCALLoader.h"
61e0abb5 82#include "AliEMCALDigitizer.h"
83#include "AliEMCALSDigitizer.h"
84#include "AliEMCALGeometry.h"
6b527f8f 85//#include "AliEMCALTick.h"
a435f763 86#include "AliEMCALCalibData.h"
33a52e55 87#include "AliEMCALSimParam.h"
916f1e76 88#include "AliEMCALRawDigit.h"
89
90namespace
91{
92 Double_t HeavisideTheta(Double_t x)
93 {
94 Double_t signal = 0.;
95
96 if (x > 0.) signal = 1.;
97
98 return signal;
99 }
100
101 Double_t AnalogFastORFunction(Double_t *x, Double_t *par)
102 {
103 Double_t v0 = par[0];
104 Double_t t0 = par[1];
105 Double_t tr = par[2];
106
107 Double_t R1 = 1000.;
108 Double_t C1 = 33e-12;
109 Double_t R2 = 1800;
110 Double_t C2 = 22e-12;
111
112 Double_t t = x[0];
113
114 return (((0.8*(-((TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-t + t0)/(C1*R1))*
115 TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2)) +
116 C1*C2*R1*R2*(1 - (C2*TMath::Power(TMath::E(),(-t + t0)/(C2*R2))*R2)/(-(C1*R1) + C2*R2)))*v0*
117 HeavisideTheta(t - t0))/tr
118 - (0.8*(C1*C2*R1*R2 -
119 (TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C1*R1))*
120 TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2) +
121 (C1*TMath::Power(C2,2)*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C2*R2))*
122 R1*TMath::Power(R2,2))/(C1*R1 - C2*R2))*v0*
123 HeavisideTheta(t - t0 - 1.25*tr))/tr)/(C2*R1));
124 }
125}
05a92d59 126
61e0abb5 127ClassImp(AliEMCALDigitizer)
128
129
130//____________________________________________________________________________
18a21c7c 131AliEMCALDigitizer::AliEMCALDigitizer()
132 : AliDigitizer("",""),
133 fDefaultInit(kTRUE),
134 fDigitsInRun(0),
135 fInit(0),
136 fInput(0),
137 fInputFileNames(0x0),
138 fEventNames(0x0),
139 fDigitThreshold(0),
140 fMeanPhotonElectron(0),
33a52e55 141// fPedestal(0), //Not used, remove?
142// fSlope(0), //Not used, remove?
18a21c7c 143 fPinNoise(0),
f0a6dc6f 144 fTimeDelay(0),
18a21c7c 145 fTimeResolution(0),
33a52e55 146// fTimeThreshold(0), //Not used, remove?
147// fTimeSignalLength(0), //Not used, remove?
18a21c7c 148 fADCchannelEC(0),
149 fADCpedestalEC(0),
150 fNADCEC(0),
151 fEventFolderName(""),
152 fFirstEvent(0),
153 fLastEvent(0),
7ea6391b 154 fCalibData(0x0)
61e0abb5 155{
156 // ctor
88cb7938 157 InitParameters() ;
ab6a174f 158 fManager = 0 ; // We work in the standalone mode
839828a6 159}
61e0abb5 160
839828a6 161//____________________________________________________________________________
18a21c7c 162AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName)
163 : AliDigitizer("EMCAL"+AliConfig::Instance()->GetDigitizerTaskName(), alirunFileName),
164 fDefaultInit(kFALSE),
165 fDigitsInRun(0),
166 fInit(0),
167 fInput(0),
168 fInputFileNames(0),
169 fEventNames(0),
170 fDigitThreshold(0),
171 fMeanPhotonElectron(0),
33a52e55 172// fPedestal(0),//Not used, remove?
173// fSlope(0), //Not used, remove?
18a21c7c 174 fPinNoise(0),
96d5ea0d 175 fTimeDelay(0),
18a21c7c 176 fTimeResolution(0),
33a52e55 177// fTimeThreshold(0), //Not used, remove?
178// fTimeSignalLength(0), //Not used, remove?
18a21c7c 179 fADCchannelEC(0),
180 fADCpedestalEC(0),
181 fNADCEC(0),
182 fEventFolderName(eventFolderName),
183 fFirstEvent(0),
184 fLastEvent(0),
7ea6391b 185 fCalibData(0x0)
839828a6 186{
05a92d59 187 // ctor
a9485c37 188 InitParameters() ;
88cb7938 189 Init() ;
ab6a174f 190 fManager = 0 ; // We work in the standalone mode
61e0abb5 191}
839828a6 192
61e0abb5 193//____________________________________________________________________________
18a21c7c 194AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d)
195 : AliDigitizer(d.GetName(),d.GetTitle()),
196 fDefaultInit(d.fDefaultInit),
197 fDigitsInRun(d.fDigitsInRun),
198 fInit(d.fInit),
199 fInput(d.fInput),
200 fInputFileNames(d.fInputFileNames),
201 fEventNames(d.fEventNames),
202 fDigitThreshold(d.fDigitThreshold),
203 fMeanPhotonElectron(d.fMeanPhotonElectron),
33a52e55 204// fPedestal(d.fPedestal), //Not used, remove?
205// fSlope(d.fSlope), //Not used, remove?
18a21c7c 206 fPinNoise(d.fPinNoise),
f0a6dc6f 207 fTimeDelay(d.fTimeDelay),
18a21c7c 208 fTimeResolution(d.fTimeResolution),
33a52e55 209// fTimeThreshold(d.fTimeThreshold), //Not used, remove?
210// fTimeSignalLength(d.fTimeSignalLength), //Not used, remove?
18a21c7c 211 fADCchannelEC(d.fADCchannelEC),
212 fADCpedestalEC(d.fADCpedestalEC),
213 fNADCEC(d.fNADCEC),
214 fEventFolderName(d.fEventFolderName),
215 fFirstEvent(d.fFirstEvent),
216 fLastEvent(d.fLastEvent),
7ea6391b 217 fCalibData(d.fCalibData)
88cb7938 218{
219 // copyy ctor
96d5ea0d 220}
88cb7938 221
222//____________________________________________________________________________
18a21c7c 223AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * rd)
224 : AliDigitizer(rd,"EMCAL"+AliConfig::Instance()->GetDigitizerTaskName()),
225 fDefaultInit(kFALSE),
226 fDigitsInRun(0),
227 fInit(0),
228 fInput(0),
229 fInputFileNames(0),
230 fEventNames(0),
da509d54 231 fDigitThreshold(0),
18a21c7c 232 fMeanPhotonElectron(0),
33a52e55 233// fPedestal(0), //Not used, remove?
234// fSlope(0.), //Not used, remove?
da509d54 235 fPinNoise(0.),
f0a6dc6f 236 fTimeDelay(0.),
18a21c7c 237 fTimeResolution(0.),
33a52e55 238// fTimeThreshold(0), //Not used, remove?
239// fTimeSignalLength(0), //Not used, remove?
18a21c7c 240 fADCchannelEC(0),
241 fADCpedestalEC(0),
242 fNADCEC(0),
243 fEventFolderName(0),
244 fFirstEvent(0),
245 fLastEvent(0),
7ea6391b 246 fCalibData(0x0)
61e0abb5 247{
45fa49ca 248 // ctor Init() is called by RunDigitizer
88cb7938 249 fManager = rd ;
e0e18b6d 250 fEventFolderName = fManager->GetInputFolderName(0) ;
88cb7938 251 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
05a92d59 252 InitParameters() ;
839828a6 253}
814ad4bf 254
839828a6 255//____________________________________________________________________________
256 AliEMCALDigitizer::~AliEMCALDigitizer()
257{
14ce0a6e 258 //dtor
33c3c91a 259 if (AliRunLoader::Instance()) {
5dee926e 260 AliLoader *emcalLoader=0;
33c3c91a 261 if ((emcalLoader = AliRunLoader::Instance()->GetDetectorLoader("EMCAL")))
5dee926e 262 emcalLoader->CleanDigitizer();
263 }
264 else
265 AliDebug(1," no runloader present");
96d5ea0d 266
f5f384f4 267 delete [] fInputFileNames ;
268 delete [] fEventNames ;
96d5ea0d 269
61e0abb5 270}
271
272//____________________________________________________________________________
09884213 273void AliEMCALDigitizer::Digitize(Int_t event)
05a92d59 274{
96d5ea0d 275
61e0abb5 276 // Makes the digitization of the collected summable digits
277 // for this it first creates the array of all EMCAL modules
ab6a174f 278 // filled with noise and after that adds contributions from
279 // SDigits. This design helps to avoid scanning over the
280 // list of digits to add contribution of any new SDigit.
281 //
282 // JLK 26-Jun-2008
283 // Note that SDigit energy info is stored as an amplitude, so we
284 // must call the Calibrate() method of the SDigitizer to convert it
285 // back to an energy in GeV before adding it to the Digit
286 //
1963b290 287 static int nEMC=0; //max number of digits possible
96d5ea0d 288
33c3c91a 289 AliRunLoader *rl = AliRunLoader::Instance();
5dee926e 290 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
14ce0a6e 291 Int_t readEvent = event ;
1963b290 292 // fManager is data member from AliDigitizer
45fa49ca 293 if (fManager)
14ce0a6e 294 readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ;
cf24bdc4 295 AliDebug(1,Form("Adding event %d from input stream 0 %s %s",
96d5ea0d 296 readEvent, GetTitle(), fEventFolderName.Data())) ;
14ce0a6e 297 rl->GetEvent(readEvent);
96d5ea0d 298
5dee926e 299 TClonesArray * digits = emcalLoader->Digits() ;
ab6a174f 300 digits->Delete() ; //correct way to clear array when memory is
96d5ea0d 301 //allocated by objects stored in array
302
e4dcc484 303 // Load Geometry
30bc5594 304 AliEMCALGeometry *geom = 0;
305 if (rl->GetAliRun()) {
306 AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL");
307 geom = emcal->GetGeometry();
308 }
309 else
310 AliFatal("Could not get AliRun from runLoader");
96d5ea0d 311
fe93d365 312 nEMC = geom->GetNCells();
313 AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName()));
314
53e430a3 315 Int_t absID = -1 ;
96d5ea0d 316
88cb7938 317 digits->Expand(nEMC) ;
96d5ea0d 318
88cb7938 319 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
5dee926e 320 if ( !emcalLoader->SDigitizer() )
321 emcalLoader->LoadSDigitizer();
322 AliEMCALSDigitizer * sDigitizer = dynamic_cast<AliEMCALSDigitizer*>(emcalLoader->SDigitizer());
88cb7938 323
96d5ea0d 324 if (!sDigitizer )
325 {
88cb7938 326 Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
814ad4bf 327 }
96d5ea0d 328 else
329 {
330 //take all the inputs to add together and load the SDigits
331 TObjArray * sdigArray = new TObjArray(fInput) ;
332 sdigArray->AddAt(emcalLoader->SDigits(), 0) ;
88cb7938 333
96d5ea0d 334 Int_t i ;
335 for(i = 1 ; i < fInput ; i++){
336 TString tempo(fEventNames[i]) ;
337 tempo += i ;
814ad4bf 338
96d5ea0d 339 AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ;
340
341 if (rl2==0)
342 rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ;
343
344 if (fManager)
345 readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
346 Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
347 rl2->LoadSDigits();
348 rl2->GetEvent(readEvent);
349 if(rl2->GetDetectorLoader("EMCAL"))
350 {
351 AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL"));
352 sdigArray->AddAt(emcalLoader2->SDigits(), i) ;
814ad4bf 353 }
96d5ea0d 354 else Fatal("Digitize", "Loader of second input not found");
355 }
356
357 //Find the first tower with signal
358 Int_t nextSig = nEMC + 1 ;
359 TClonesArray * sdigits ;
360 for(i = 0 ; i < fInput ; i++){
361
362 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
363 if(sdigits){
364 if (sdigits->GetEntriesFast() ){
365 if(sdigits->At(0)){
366
367 Int_t curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(0))->GetId() ;
368 if(curNext < nextSig)
369 nextSig = curNext ;
370 AliDebug(1,Form("input %i : #sdigits %i \n",
371 i, sdigits->GetEntriesFast()));
372
373 }//First entry is not NULL
374 else {
375 Info("Digitize", "NULL sdigit pointer");
376 continue;
377 }
378 }//There is at least one entry
379 else {
380 Info("Digitize", "NULL sdigits array");
381 continue;
53e430a3 382 }
96d5ea0d 383 }// SDigits array exists
384 else {
385 Info("Digitizer","Null sdigit pointer");
386 continue;
814ad4bf 387 }
96d5ea0d 388 }// input loop
389 AliDebug(1,Form("FIRST tower with signal %i \n", nextSig));
390
391 TArrayI index(fInput) ;
392 index.Reset() ; //Set all indexes to zero
393
394 AliEMCALDigit * digit ;
395 AliEMCALDigit * curSDigit ;
396
397 // TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
398
399 //Put Noise contribution
400 for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC
401 Float_t energy = 0 ;
402 // amplitude set to zero, noise will be added later
403 new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., TimeOfNoise(),kFALSE); // absID-1->absID
404 //look if we have to add signal?
405
406 digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID
407
408 if (digit) {
409
410 if(absID==nextSig){
411 //Add SDigits from all inputs
412 // ticks->Clear() ;
413 //Int_t contrib = 0 ;
414
415 //Follow PHOS and comment out this timing model til a better one
416 //can be developed - JLK 28-Apr-2008
417
418 //Float_t a = digit->GetAmplitude() ;
419 //Float_t b = TMath::Abs( a /fTimeSignalLength) ;
420 //Mark the beginning of the signal
421 //new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
422 //Mark the end of the signal
423 //new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
424
425 // Calculate time as time of the largest digit
426 Float_t time = digit->GetTime() ;
427 Float_t aTime= digit->GetAmplitude() ;
428
429 // loop over input
430 for(i = 0; i< fInput ; i++){ //loop over (possible) merge sources
431 if(sdigArray->At(i)) {
432 Int_t sDigitEntries = dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast();
433
434 if(sDigitEntries > index[i] )
435 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
436 else
437 curSDigit = 0 ;
438
439 //May be several digits will contribute from the same input
440 while(curSDigit && (curSDigit->GetId() == absID)){
441 //Shift primary to separate primaries belonging different inputs
442 Int_t primaryoffset ;
443 if(fManager)
444 primaryoffset = fManager->GetMask(i) ;
445 else
446 primaryoffset = i ;
447 curSDigit->ShiftPrimary(primaryoffset) ;
448
449 //Remove old timing model - JLK 28-April-2008
450 //a = curSDigit->GetAmplitude() ;
451 //b = a /fTimeSignalLength ;
452 //new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
453 //new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
454 if(curSDigit->GetAmplitude()>aTime) {
455 aTime = curSDigit->GetAmplitude();
456 time = curSDigit->GetTime();
457 }
458
459 *digit = *digit + *curSDigit ; //adds amplitudes of each digit
460
461 index[i]++ ;
462 if( sDigitEntries > index[i] )
463 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
464 else
465 curSDigit = 0 ;
466 }// while
467 }// source exists
468 }// loop over merging sources
469
470 //Here we convert the summed amplitude to an energy in GeV
471 energy = sDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV
472 // add fluctuations for photo-electron creation
473 energy *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
474
475 //calculate and set time
476 //New timing model needed - JLK 28-April-2008
477 //Float_t time = FrontEdgeTime(ticks) ;
478 digit->SetTime(time) ;
479
480 //Find next signal module
481 nextSig = nEMC + 1 ;
482 for(i = 0 ; i < fInput ; i++){
483 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
484 if(sdigits){
485 Int_t curNext = nextSig ;
486 if(sdigits->GetEntriesFast() > index[i] && sdigits->At(index[i])){
487 curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]))->GetId() ;
488 }
489 if(curNext < nextSig) nextSig = curNext ;
490 }// sdigits exist
491 } // input loop
492
493 }//absID==nextSig
494
495 // add the noise now
496 energy += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
497 // JLK 26-June-2008
498 //Now digitize the energy according to the sDigitizer method,
499 //which merely converts the energy to an integer. Later we will
500 //check that the stored value matches our allowed dynamic ranges
501 digit->SetAmplitude(sDigitizer->Digitize(energy)) ;
502 AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n",
503 absID, energy, nextSig));
504 }// Digit pointer exists
505 else{
506 Info("Digitizer","Digit pointer is null");
507 }
508 } // for(absID = 0; absID < nEMC; absID++)
509
510 //ticks->Delete() ;
511 //delete ticks ;
512
513 //JLK is it better to call Clear() here?
514 delete sdigArray ; //We should not delete its contents
515
516 //remove digits below thresholds
517 // until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise
518 // now, remove digits with Digitized ADC smaller than fDigitThreshold = 3
519 Float_t energy=0;
520 for(i = 0 ; i < nEMC ; i++){
521 digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
522 if(digit){
523 //First get the energy in GeV units.
524 energy = sDigitizer->Calibrate(digit->GetAmplitude()) ;
525 //Then digitize using the calibration constants of the ocdb
526 Float_t ampADC = DigitizeEnergy(energy, digit->GetId()) ;
527 //if(ampADC>2)printf("Digit energy %f, amp %d, amp cal %d, threshold %d\n",energy,digit->GetAmplitude(),ampADC,fDigitThreshold);
528 if(ampADC < fDigitThreshold)
529 digits->RemoveAt(i) ;
530 else
531 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
532 }// digit exists
533 } // digit loop
534
535 digits->Compress() ;
536
537 Int_t ndigits = digits->GetEntriesFast() ;
538
539 //JLK 26-June-2008
540 //After we have done the summing and digitizing to create the
541 //digits, now we want to calibrate the resulting amplitude to match
542 //the dynamic range of our real data.
543 for (i = 0 ; i < ndigits ; i++) {
544 digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
545 if(digit){
546 digit->SetIndexInList(i) ;
547 energy = sDigitizer->Calibrate(digit->GetAmplitude()) ;
548 digit->SetAmplitude(DigitizeEnergy(energy, digit->GetId()) ) ;
549 //Add delay to time
550 digit->SetTime(digit->GetTime()+fTimeDelay) ;
551 // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude());
552 }// digit exists
553 }//Digit loop
554
555 }//SDigitizer not null
814ad4bf 556}
61e0abb5 557
d62a891a 558// //_____________________________________________________________________
829ba234 559Float_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t AbsId)
814ad4bf 560{
ab6a174f 561 // JLK 26-June-2008
e4dcc484 562 // Returns digitized value of the energy in a cell absId
ab6a174f 563 // using the calibration constants stored in the OCDB
564 // or default values if no CalibData object is found.
565 // This effectively converts everything to match the dynamic range
566 // of the real data we will collect
567 //
53f1c378 568 // Load Geometry
569 const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
e4dcc484 570
829ba234 571 Float_t channel = -999;
d62a891a 572
96d5ea0d 573 if (geom==0){
574 AliFatal("Did not get geometry from EMCALLoader");
e4dcc484 575 }
96d5ea0d 576 else {
577 Int_t iSupMod = -1;
578 Int_t nModule = -1;
579 Int_t nIphi = -1;
580 Int_t nIeta = -1;
581 Int_t iphi = -1;
582 Int_t ieta = -1;
583 Bool_t bCell = geom->GetCellIndex(AbsId, iSupMod, nModule, nIphi, nIeta) ;
584 if(!bCell)
585 Error("DigitizeEnergy","Wrong cell id number : AbsId %i ", AbsId) ;
586 geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
5eb74a51 587
96d5ea0d 588 if(fCalibData) {
589 fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi);
590 fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi);
591 }
592
593 //channel = static_cast<Int_t> (TMath::Floor( (energy + fADCpedestalEC)/fADCchannelEC )) ;
594 channel = (energy + fADCpedestalEC)/fADCchannelEC ;
829ba234 595
96d5ea0d 596 if(channel > fNADCEC )
597 channel = fNADCEC ;
598 }// geometry exists
599
814ad4bf 600 return channel ;
d62a891a 601
61e0abb5 602}
603
604//____________________________________________________________________________
05a92d59 605void AliEMCALDigitizer::Exec(Option_t *option)
606{
45fa49ca 607 // Steering method to process digitization for events
608 // in the range from fFirstEvent to fLastEvent.
609 // This range is optionally set by SetEventRange().
610 // if fLastEvent=-1, then process events until the end.
611 // by default fLastEvent = fFirstEvent (process only one event)
05a92d59 612
88cb7938 613 if (!fInit) { // to prevent overwrite existing file
614 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
615 return ;
616 }
617
814ad4bf 618 if (strstr(option,"print")) {
b42d4197 619
88cb7938 620 Print();
814ad4bf 621 return ;
622 }
623
61e0abb5 624 if(strstr(option,"tim"))
625 gBenchmark->Start("EMCALDigitizer");
5dee926e 626
33c3c91a 627 AliRunLoader *rl = AliRunLoader::Instance();
5dee926e 628 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
96d5ea0d 629 Int_t nEvents = 0;
630 if(!emcalLoader){
631 AliFatal("Did not get the Loader");
30bc5594 632 }
96d5ea0d 633 else{
634 // Post Digitizer to the white board
635 emcalLoader->PostDigitizer(this) ;
64942713 636
96d5ea0d 637 if (fLastEvent == -1) {
638 fLastEvent = rl->GetNumberOfEvents() - 1 ;
639 }
640 else if (fManager)
641 fLastEvent = fFirstEvent ; // what is this ??
642
643 nEvents = fLastEvent - fFirstEvent + 1;
644 Int_t ievent = -1;
88cb7938 645
96d5ea0d 646 TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", 32*96);
647 TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", 32*96);
88cb7938 648
96d5ea0d 649 rl->LoadSDigits("EMCAL");
650 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
651
652 rl->GetEvent(ievent);
653
654 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
655
656 WriteDigits() ;
657
658 //Trigger Digits
659 //-------------------------------------
660
88cb7938 661
96d5ea0d 662 Digits2FastOR(digitsTMP, digitsTRG);
663
664 WriteDigits(digitsTRG);
665
666 (emcalLoader->TreeD())->Fill();
667
668 emcalLoader->WriteDigits( "OVERWRITE");
669 emcalLoader->WriteDigitizer("OVERWRITE");
670
671 Unload();
672
673 digitsTRG ->Delete();
674 digitsTMP ->Delete();
675
676 //-------------------------------------
677
678 if(strstr(option,"deb"))
679 PrintDigits(option);
680 if(strstr(option,"table")) gObjectTable->Print();
681
682 //increment the total number of Digits per run
683 fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ;
684 }//loop
685
96d5ea0d 686 emcalLoader->CleanDigitizer() ;
687
688 }//loader exists
64942713 689
61e0abb5 690 if(strstr(option,"tim")){
691 gBenchmark->Stop("EMCALDigitizer");
b42d4197 692 AliInfo(Form("Exec: took %f seconds for Digitizing %f seconds per event",
693 gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents )) ;
88cb7938 694 }
61e0abb5 695}
696
05a92d59 697//____________________________________________________________________________
916f1e76 698void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG)
699{
de39a0ff 700 // FEE digits afterburner to produce TRG digits
701 // we are only interested in the FEE digit deposited energy
702 // to be converted later into a voltage value
703
704 // push the FEE digit to its associated FastOR (numbered from 0:95)
705 // TRU is in charge of summing module digits
706
707 AliRunLoader *runLoader = AliRunLoader::Instance();
708
709 AliRun* run = runLoader->GetAliRun();
710
711 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL"));
712 if(!emcalLoader){
713 AliFatal("Did not get the Loader");
96d5ea0d 714 }
715 else {
716 AliEMCALGeometry* geom = dynamic_cast<AliEMCAL*>(run->GetDetector("EMCAL"))->GetGeometry();
717
718 // build FOR from simulated digits
719 // and xfer to the corresponding TRU input (mapping)
720
721 TClonesArray* digits = emcalLoader->Digits();
de39a0ff 722
96d5ea0d 723 TIter NextDigit(digits);
724 while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
96d5ea0d 725 {
de39a0ff 726 Int_t id = digit->GetId();
727
728 Int_t trgid;
729 if (geom->GetFastORIndexFromCellIndex(id , trgid))
730 {
731 AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id));
732
733 AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid));
734
735 if (!d)
736 {
737 new((*digitsTMP)[trgid]) AliEMCALDigit(*digit);
738 d = (AliEMCALDigit*)digitsTMP->At(trgid);
739 d->SetId(trgid);
740 }
741 else
742 {
743 *d = *d + *digit;
744 }
745 }
96d5ea0d 746 }
de39a0ff 747
748 if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast());
96d5ea0d 749
750 Int_t nSamples = 32;
751 Int_t *timeSamples = new Int_t[nSamples];
752
753 NextDigit = TIter(digitsTMP);
754 while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
96d5ea0d 755 {
de39a0ff 756 if (digit)
757 {
758 Int_t id = digit->GetId();
759 Float_t time = digit->GetTime();
760
761 Double_t depositedEnergy = 0.;
762 for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j);
763
764 if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy);
765
766 // FIXME: Check digit time!
767 if (depositedEnergy)
768 {
769 DigitalFastOR(time, depositedEnergy, timeSamples, nSamples);
770
771 for (Int_t j=0;j<nSamples;j++)
772 {
773 timeSamples[j] = ((j << 12) & 0xFF000) | (timeSamples[j] & 0xFFF);
774 }
775
776 new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples);
777 }
778 }
96d5ea0d 779 }
96d5ea0d 780
781 delete [] timeSamples;
782
783 }// loader exists
784
916f1e76 785}
786
787//____________________________________________________________________________
788void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples )
789{
790 // parameters:
791 // id: 0..95
792 const Int_t reso = 11; // 11-bit resolution ADC
793 const Double_t vFSR = 1; // Full scale input voltage range
794 const Double_t Ne = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30
795 const Double_t vA = .136e-6; // CSP output range: 0.136uV/e-
796 const Double_t rise = 40e-9; // rise time (10-90%) of the FastOR signal before shaping
797
798 const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz)
799
800 Double_t vV = 1000. * dE * Ne * vA; // GeV 2 MeV
801
802 TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3);
803 signalF.SetParameter( 0, vV );
804 signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths
805 signalF.SetParameter( 2, rise );
806
807 for (Int_t iTime=0; iTime<nSamples; iTime++)
808 {
809 // FIXME: add noise (probably not simply Gaussian) according to DA measurements
810 // probably plan an access to OCDB
811
812 timeSamples[iTime] = int((TMath::Power(2, reso) / vFSR) * signalF.Eval(iTime * kTimeBinWidth) + 0.5);
813 }
814}
815
816
817//____________________________________________________________________________
33a52e55 818//Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
819//{
820// // Returns the shortest time among all time ticks
821//
822// ticks->Sort() ; //Sort in accordance with times of ticks
823// TIter it(ticks) ;
824// AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
825// Float_t time = ctick->CrossingTime(fTimeThreshold) ;
826//
827// AliEMCALTick * t ;
828// while((t=(AliEMCALTick*) it.Next())){
829// if(t->GetTime() < time) //This tick starts before crossing
830// *ctick+=*t ;
831// else
832// return time ;
833//
834// time = ctick->CrossingTime(fTimeThreshold) ;
835// }
836// return time ;
837//}
838//
05a92d59 839
840//____________________________________________________________________________
841Bool_t AliEMCALDigitizer::Init()
842{
843 // Makes all memory allocations
88cb7938 844 fInit = kTRUE ;
33c3c91a 845 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
5dee926e 846
847 if ( emcalLoader == 0 ) {
848 Fatal("Init", "Could not obtain the AliEMCALLoader");
05a92d59 849 return kFALSE;
850 }
05a92d59 851
45fa49ca 852 fFirstEvent = 0 ;
853 fLastEvent = fFirstEvent ;
854
88cb7938 855 if(fManager)
856 fInput = fManager->GetNinputs() ;
857 else
858 fInput = 1 ;
859
860 fInputFileNames = new TString[fInput] ;
861 fEventNames = new TString[fInput] ;
862 fInputFileNames[0] = GetTitle() ;
863 fEventNames[0] = fEventFolderName.Data() ;
864 Int_t index ;
865 for (index = 1 ; index < fInput ; index++) {
866 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
867 TString tempo = fManager->GetInputFolderName(index) ;
868 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
05a92d59 869 }
870
88cb7938 871 //to prevent cleaning of this object while GetEvent is called
5dee926e 872 emcalLoader->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
e52475ed 873
53f1c378 874 //Calibration instance
875 fCalibData = emcalLoader->CalibData();
88cb7938 876 return fInit ;
05a92d59 877}
878
879//____________________________________________________________________________
880void AliEMCALDigitizer::InitParameters()
14ce0a6e 881{
29b5d492 882 // Parameter initialization for digitizer
6569f329 883
884 // Get the parameters from the OCDB via the loader
885 AliRunLoader *rl = AliRunLoader::Instance();
886 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
887 AliEMCALSimParam * simParam = 0x0;
888 if(emcalLoader) simParam = emcalLoader->SimulationParameters();
889
890 if(!simParam){
891 simParam = AliEMCALSimParam::GetInstance();
892 AliWarning("Simulation Parameters not available in OCDB?");
893 }
894
895 fMeanPhotonElectron = simParam->GetMeanPhotonElectron();//4400; // electrons per GeV
896 fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data
33a52e55 897 if (fPinNoise < 0.0001 )
88cb7938 898 Warning("InitParameters", "No noise added\n") ;
6569f329 899 fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma
f0a6dc6f 900 fTimeResolution = simParam->GetTimeResolution(); //0.6e-9 ; // 600 pc
901 fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns
05a92d59 902
97075cd8 903 // These defaults are normally not used.
904 // Values are read from calibration database instead
33a52e55 905 fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV
906 fADCpedestalEC = 0.0 ; // GeV
907
6569f329 908 fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536
33a52e55 909
29b7e56e 910 AliDebug(2,Form("Mean Photon Electron %d, Noise %f, Digit Threshold %d,Time Resolution %g,NADCEC %d",
33a52e55 911 fMeanPhotonElectron,fPinNoise,fDigitThreshold,fTimeResolution,fNADCEC));
a9485c37 912
33a52e55 913 // Not used anymore, remove?
914 // fTimeSignalLength = 1.0e-9 ;
915 // fTimeThreshold = 0.001*10000000 ; // Means 1 MeV in terms of SDigits amplitude ??
ab6a174f 916
05a92d59 917}
61e0abb5 918
61e0abb5 919//__________________________________________________________________
09884213 920void AliEMCALDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
05a92d59 921{
922 // Allows to produce digits by superimposing background and signal event.
61e0abb5 923 // It is assumed, that headers file with SIGNAL events is opened in
05a92d59 924 // the constructor.
925 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
926 // Thus we avoid writing (changing) huge and expensive
61e0abb5 927 // backgound files: all output will be writen into SIGNAL, i.e.
928 // opened in constructor file.
929 //
05a92d59 930 // One can open as many files to mix with as one needs.
931 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
932 // can be mixed.
61e0abb5 933
05a92d59 934 if( strcmp(GetName(), "") == 0 )
61e0abb5 935 Init() ;
814ad4bf 936
05a92d59 937 if(fManager){
9859bfc0 938 Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
61e0abb5 939 return ;
05a92d59 940 }
88cb7938 941 // looking for file which contains AliRun
942 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
943 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
944 return ;
61e0abb5 945 }
88cb7938 946 // looking for the file which contains SDigits
33c3c91a 947 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
96d5ea0d 948
949 if(emcalLoader){
950 AliFatal("Did not get the Loader");
951 }
952 else{
953 TString fileName( emcalLoader->GetSDigitsFileName() ) ;
e191bb57 954 if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 955 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
956 if ( (gSystem->AccessPathName(fileName)) ) {
957 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
958 return ;
814ad4bf 959 }
88cb7938 960 // need to increase the arrays
30bc5594 961 // MvL: This code only works when fInput == 1, I think.
88cb7938 962 TString tempo = fInputFileNames[fInput-1] ;
963 delete [] fInputFileNames ;
964 fInputFileNames = new TString[fInput+1] ;
965 fInputFileNames[fInput-1] = tempo ;
96d5ea0d 966
88cb7938 967 tempo = fEventNames[fInput-1] ;
968 delete [] fEventNames ;
969 fEventNames = new TString[fInput+1] ;
970 fEventNames[fInput-1] = tempo ;
96d5ea0d 971
88cb7938 972 fInputFileNames[fInput] = alirunFileName ;
973 fEventNames[fInput] = eventFolderName ;
974 fInput++ ;
96d5ea0d 975
976 }// Loader exits
977
88cb7938 978}
1963b290 979
fe93d365 980//__________________________________________________________________
1963b290 981void AliEMCALDigitizer::Print1(Option_t * option)
982{ // 19-nov-04 - just for convinience
983 Print();
984 PrintDigits(option);
985}
986
61e0abb5 987//__________________________________________________________________
eb0b1051 988void AliEMCALDigitizer::Print(Option_t*)const
88cb7938 989{
990 // Print Digitizer's parameters
fdebddeb 991 printf("Print: \n------------------- %s -------------", GetName() ) ;
88cb7938 992 if( strcmp(fEventFolderName.Data(), "") != 0 ){
993 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
994
995 Int_t nStreams ;
996 if (fManager)
997 nStreams = GetNInputStreams() ;
998 else
999 nStreams = fInput ;
53e430a3 1000
1001 AliRunLoader *rl=0;
88cb7938 1002
1003 Int_t index = 0 ;
1004 for (index = 0 ; index < nStreams ; index++) {
1005 TString tempo(fEventNames[index]) ;
1006 tempo += index ;
5dee926e 1007 if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0)
96d5ea0d 1008 rl = AliRunLoader::Open(fInputFileNames[index], tempo) ;
5dee926e 1009 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
96d5ea0d 1010 if(emcalLoader){
1011 TString fileName( emcalLoader->GetSDigitsFileName() ) ;
1012 if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
1013 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
1014 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
1015 }//loader
88cb7938 1016 }
5dee926e 1017
33c3c91a 1018 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
5dee926e 1019
96d5ea0d 1020 if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ;
1021 else printf("\nNULL LOADER");
1022
88cb7938 1023 printf("\nWith following parameters:\n") ;
1024
1025 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise) ;
4354827d 1026 printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ;
88cb7938 1027 printf("---------------------------------------------------\n") ;
ea5f3389 1028 }
1029 else
fdebddeb 1030 printf("Print: AliEMCALDigitizer not initialized") ;
61e0abb5 1031}
814ad4bf 1032
61e0abb5 1033//__________________________________________________________________
14ce0a6e 1034void AliEMCALDigitizer::PrintDigits(Option_t * option)
1035{
1036 //utility method for printing digit information
1037
33c3c91a 1038 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
96d5ea0d 1039 if(emcalLoader){
1040 TClonesArray * digits = emcalLoader->Digits() ;
1041 TClonesArray * sdigits = emcalLoader->SDigits() ;
1042
1043 printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ;
1044 printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber());
1045
1046 if(strstr(option,"all")){
1047 //loop over digits
1048 AliEMCALDigit * digit;
1049 printf("\nEMC digits (with primaries):\n") ;
1050 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
1051 Int_t index ;
1052 for (index = 0 ; index < digits->GetEntries() ; index++) {
1053 digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
1054 if(digit){
1055 printf("\n%6d %8f %6.5e %4d %2d : ",
1056 digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
1057 Int_t iprimary;
1058 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
1059 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
1060 }
1061 }// digit exists
1062 }// loop
1063 }
1064 printf("\n");
1065 }// loader exists
1066 else printf("NULL LOADER, cannot print\n");
61e0abb5 1067}
05a92d59 1068
1069//__________________________________________________________________
1070Float_t AliEMCALDigitizer::TimeOfNoise(void)
04f0bda3 1071{
1072 // Calculates the time signal generated by noise
26a2ef9d 1073 //PH Info("TimeOfNoise", "Change me") ;
04f0bda3 1074 return gRandom->Rndm() * 1.28E-5;
05a92d59 1075}
1076
88cb7938 1077//__________________________________________________________________
1078void AliEMCALDigitizer::Unload()
1079{
fdebddeb 1080 // Unloads the SDigits and Digits
5dee926e 1081 AliRunLoader *rl=0;
1082
88cb7938 1083 Int_t i ;
1084 for(i = 1 ; i < fInput ; i++){
1085 TString tempo(fEventNames[i]) ;
5dee926e 1086 tempo += i;
1087 if ((rl = AliRunLoader::GetRunLoader(tempo)))
1088 rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ;
88cb7938 1089 }
33c3c91a 1090 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
96d5ea0d 1091 if(emcalLoader)emcalLoader->UnloadDigits() ;
1092 else AliFatal("Did not get the loader");
88cb7938 1093}
1094
814ad4bf 1095//_________________________________________________________________________________________
9e5d2067 1096void AliEMCALDigitizer::WriteDigits()
814ad4bf 1097{
96d5ea0d 1098
814ad4bf 1099 // Makes TreeD in the output file.
1100 // Check if branch already exists:
1101 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
1102 // already existing branches.
1103 // else creates branch with Digits, named "EMCAL", title "...",
1104 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
1105 // and names of files, from which digits are made.
96d5ea0d 1106
33c3c91a 1107 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
96d5ea0d 1108
1109 if(emcalLoader){
1110 const TClonesArray * digits = emcalLoader->Digits() ;
1111 TTree * treeD = emcalLoader->TreeD();
1112 if ( !treeD ) {
1113 emcalLoader->MakeDigitsContainer();
1114 treeD = emcalLoader->TreeD();
1115 }
1116
1117 // -- create Digits branch
1118 Int_t bufferSize = 32000 ;
1119 TBranch * digitsBranch = 0;
1120 if ((digitsBranch = treeD->GetBranch("EMCAL"))) {
1121 digitsBranch->SetAddress(&digits);
1122 AliWarning("Digits Branch already exists. Not all digits will be visible");
1123 }
1124 else
1125 treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize);
1126 //digitsBranch->SetTitle(fEventFolderName);
1127
1128 // treeD->Fill() ;
1129 /*
1130 emcalLoader->WriteDigits("OVERWRITE");
1131 emcalLoader->WriteDigitizer("OVERWRITE");
1132
1133 Unload() ;
1134 */
1135
1136 }// loader exists
1137 else AliFatal("Loader not available");
916f1e76 1138}
88cb7938 1139
916f1e76 1140//__________________________________________________________________
1141void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName)
1142{
1143 //
1144 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
96d5ea0d 1145 if(emcalLoader){
1146
1147 TTree* treeD = emcalLoader->TreeD();
1148 if (!treeD)
1149 {
1150 emcalLoader->MakeDigitsContainer();
1151 treeD = emcalLoader->TreeD();
1152 }
1153
1154 // -- create Digits branch
1155 Int_t bufferSize = 32000;
1156
1157 if (TBranch* triggerBranch = treeD->GetBranch(branchName))
1158 {
1159 triggerBranch->SetAddress(&digits);
1160 }
1161 else
1162 {
1163 treeD->Branch(branchName,"TClonesArray",&digits,bufferSize);
1164 }
1165
1166 // treeD->Fill();
1167 }// loader exists
1168 else AliFatal("Loader not available");
814ad4bf 1169}
61e0abb5 1170
fe93d365 1171//__________________________________________________________________
1963b290 1172void AliEMCALDigitizer::Browse(TBrowser* b)
1173{
1963b290 1174 TTask::Browse(b);
1175}