/**************************************************************************
+
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+
* *
+
* Author: The ALICE Off-line Project. *
+
* Contributors are mentioned in the code where appropriate. *
+
* *
+
* Permission to use, copy, modify and distribute this software and its *
+
* documentation strictly for non-commercial purposes is hereby granted *
+
* without fee, provided that the above copyright notice appears in all *
+
* copies and that both the copyright notice and this permission notice *
+
* appear in the supporting documentation. The authors make no claims *
+
* about the suitability of this software for any purpose. It is *
+
* provided "as is" without express or implied warranty. *
+
**************************************************************************/
+
+
/* $Id$ */
+
+
//_________________________________________________________________________
+
//
+
//////////////////////////////////////////////////////////////////////////////
+
// Class performs digitization of Summable digits
+
//
+
// In addition it performs mixing of summable digits from different events.
+
//
+
// For each event two branches are created in TreeD:
+
// "EMCAL" - list of digits
+
// "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
+
//
+
// Note, that one cset title for new digits branch, and repeat digitization with
+
// another set of parameters.
+
//
+
// Examples of use:
+
// root[0] AliEMCALDigitizer * d = new AliEMCALDigitizer() ;
+
// root[1] d->ExecuteTask()
+
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
+
// //Digitizes SDigitis in all events found in file galice.root
+
//
+
// root[2] AliEMCALDigitizer * d1 = new AliEMCALDigitizer("galice1.root") ;
+
// // Will read sdigits from galice1.root
+
// root[3] d1->MixWith("galice2.root")
+
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
+
// // Reads another portion of sdigits from galice2.root
+
// root[3] d1->MixWith("galice3.root")
+
// // Reads another portion of sdigits from galice3.root
+
// root[4] d->ExecuteTask("deb timing")
+
// // Reads SDigits from files galice1.root, galice2.root ....
+
// // mixes them and stores produced Digits in file galice1.root
+
// // deb - prints number of produced digits
+
// // deb all - prints list of produced digits
+
// // timing - prints time used for digitization
+
////////////////////////////////////////////////////////////////////////////////////
+
//
+
//*-- Author: Sahal Yacoob (LBL)
+
// based on : AliEMCALDigitizer
+
//_________________________________________________________________________________
+
+
// --- ROOT system ---
+
#include "TFile.h"
+
#include "TTree.h"
+
#include "TSystem.h"
+
#include "TROOT.h"
+
#include "TFolder.h"
+
#include "TObjString.h"
+
#include "TBenchmark.h"
+
// --- Standard library ---
+
#include <iomanip.h>
+
+
// --- AliRoot header files ---
+
+
#include "AliRun.h"
+
#include "AliEMCALDigit.h"
+
#include "AliEMCALHit.h"
+
#include "AliEMCALTick.h"
+
#include "AliEMCALv1.h"
+
#include "AliEMCALDigitizer.h"
+
#include "AliEMCALSDigitizer.h"
+
#include "AliEMCALGeometry.h"
+
#include "AliEMCALGetter.h"
+
#include "AliRunDigitizer.h"
+
ClassImp(AliEMCALDigitizer)
+
+
+
//____________________________________________________________________________
+
AliEMCALDigitizer::AliEMCALDigitizer()
+
{
+
// ctor
+
+
fSDigitizer = 0 ;
- fNinputs = 1 ;
- fPinNoise = 0.01 ;
- fEMCDigitThreshold = 0.01 ;
- fTimeResolution = 0.5e-9 ;
- fTimeSignalLength = 1.0e-9 ;
- fPreShowerDigitThreshold = fEMCDigitThreshold/100. ;
- fADCchannelTower = 0.0030; // width of one ADC channel in GeV
- fADCpedestalTower = 0.005 ; // pedestal of ADC
- fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
- fADCchannelPreSho = 0.0030 ; // width of one ADC channel in Pre Shower
- fADCpedestalPreSho = 0.005 ; // pedestal of ADC
- fNADCPreSho = (Int_t) TMath::Power(2,16); // number of channels in Pre Shower ADC
- fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
+ fNinputs = 0 ;
+
+ fPinNoise = 0. ;
+
+ fTowerDigitThreshold = 0. ;
+
+ fTimeResolution =0.;
+
+ fTimeSignalLength =0.;
+
+ fPreShowerDigitThreshold = 0. ;
+
+ fADCchannelTower = 0.0; // width of one ADC channel in GeV
+
+ fADCpedestalTower = 0.0 ; // pedestal of ADC
+
+ fNADCTower = 0 ;
+
+ fADCchannelPreSho = 0.0 ; // width of one ADC channel in Pre Shower
+
+ fADCpedestalPreSho = 0.0 ; // pedestal of ADC
+
+ fNADCPreSho = 0; // number of channels in Pre Shower ADC
+
+ fTimeThreshold = 0.0 ;
+
fManager = 0 ;
+
+
+
+
}
+
//____________________________________________________________________________
+
Bool_t AliEMCALDigitizer::Init()
+
{
+
// Makes all memory allocations
+
+
fSDigitizer = 0 ;
+
fNinputs = 1 ;
- fPinNoise = 0.01 ;
- fEMCDigitThreshold = 0.01 ;
+
+ fPinNoise = 0.00001 ;
+
+ fTowerDigitThreshold = 0.001 ;
+
fTimeResolution = 0.5e-9 ;
+
fTimeSignalLength = 1.0e-9 ;
- fPreShowerDigitThreshold = fEMCDigitThreshold/100. ;
+
+ fPreShowerDigitThreshold = fTowerDigitThreshold/25. ;
+
fInitialized = kFALSE ;
- fADCchannelTower = 0.0030; // width of one ADC channel in GeV
- fADCpedestalTower = 0.005 ; //
+
+ fADCchannelTower = 0.000160; // width of one ADC channel in GeV
+
+ fADCpedestalTower = 0.005 ; // GeV
+
fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
- fADCchannelPreSho = 0.0030 ; // width of one ADC channel in Pre Shower
+
+
+ fADCchannelPreSho = 0.00000170; // width of one ADC channel in Pre Shower
+
fADCpedestalPreSho = 0.005 ; //
- fNADCPreSho = (Int_t) TMath::Power(2,16); // number of channels in Pre ShowerADC
+
+ fNADCPreSho = (Int_t) TMath::Power(2,12); // number of channels in Pre ShowerADC
+
+
fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
+
+
+
+
if(fManager)
+
SetTitle("aliroot") ;
+
else if (strcmp(GetTitle(),"")==0)
+
SetTitle("galice.root") ;
+
+
if( strcmp(GetName(), "") == 0 )
+
SetName("Default") ;
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance(GetTitle(), GetName(), "update") ;
+
if ( gime == 0 ) {
+
cerr << "ERROR: AliEMCALDigitizer::Init -> Could not obtain the Getter object !" << endl ;
+
return kFALSE;
+
}
+
+
//const AliEMCALGeometry * geom = gime->EMCALGeometry() ;
+
//fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
+
+
// Post Digits to the white board
+
gime->PostDigits(GetName() ) ;
+
+
// Post Digitizer to the white board
+
gime->PostDigitizer(this) ;
+
+
//Mark that we will use current header file
+
if(!fManager){
+
gime->PostSDigits(GetName(),GetTitle()) ;
+
gime->PostSDigitizer(GetName(),GetTitle()) ;
+
}
+
return kTRUE ;
+
+
+
+
}
+
+
//____________________________________________________________________________
+
AliEMCALDigitizer::AliEMCALDigitizer(const char *headerFile,const char *name)
+
{
+
SetName(name) ;
+
SetTitle(headerFile) ;
+
fManager = 0 ; // We work in the standalong mode
+
Init() ;
+
+
+
+
}
+
//____________________________________________________________________________
+
AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
+
{
+
// ctor
+
SetName(""); //Will call init in the digitizing
+
SetTitle("aliroot") ;
+
}
+
+
//____________________________________________________________________________
+
AliEMCALDigitizer::~AliEMCALDigitizer()
+
{
+
// dtor
+
+
}
+
//____________________________________________________________________________
+
void AliEMCALDigitizer::Reset() {
+
//sets current event number to the first simulated event
+
if( strcmp(GetName(), "") == 0 )
+
Init() ;
+
+
// Int_t inputs ;
+
// for(inputs = 0; inputs < fNinputs ;inputs++)
+
// fIevent->AddAt(-1, inputs ) ;
+
+
}
+
+
//____________________________________________________________________________
+
void AliEMCALDigitizer::Digitize(const Int_t event) {
+
+
// Makes the digitization of the collected summable digits
+
// for this it first creates the array of all EMCAL modules
+
// filled with noise (different for EMC, CPV and PPSD) and
+
// after that adds contributions from SDigits. This design
+
// helps to avoid scanning over the list of digits to add
+
// contribution of any new SDigit.
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
+
TClonesArray * digits = gime->Digits(GetName()) ;
+
+
digits->Clear() ;
+
+
const AliEMCALGeometry *geom = gime->EMCALGeometry() ;
+
+
+
//Making digits with noise, first EMC
+
Int_t nEMC = 2*geom->GetNPhi()*geom->GetNZ();
+
Int_t absID ;
+
TString name = geom->GetName() ;
+
+
// get first the sdigitizer from the tasks list (must have same name as the digitizer)
+
const AliEMCALSDigitizer * sDigitizer = gime->SDigitizer(GetName());
+
if ( !sDigitizer) {
+
cerr << "ERROR: AliEMCALDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
+
abort() ;
+
}
+
+
// loop through the sdigits posted to the White Board and add them to the noise
+
TCollection * folderslist = gime->SDigitsFolder()->GetListOfFolders() ;
+
TIter next(folderslist) ;
+
TFolder * folder = 0 ;
+
TClonesArray * sdigits = 0 ;
+
Int_t input = 0 ;
+
TObjArray * sdigArray = new TObjArray(2) ;
+
while ( (folder = (TFolder*)next()) )
+
if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
+
cout << "INFO: AliEMCALDigitizer::Digitize -> Adding SDigits "
+
<< GetName() << " from " << folder->GetName() << endl ;
+
sdigArray->AddAt(sdigits, input) ;
+
input++ ;
+
}
- //Find the first crystall with signal
+
+
+ //Find the first tower with signal
+
Int_t nextSig = 200000 ;
+
Int_t i;
+
for(i=0; i<input; i++){
+
sdigits = (TClonesArray *)sdigArray->At(i) ;
+
if ( !sdigits->GetEntriesFast() )
+
continue ;
+
Int_t curNext = ((AliEMCALDigit *)sdigits->At(0))->GetId() ;
+
if(curNext < nextSig)
+
nextSig = curNext ;
+
}
+
+
TArrayI index(input) ;
+
index.Reset() ; //Set all indexes to zero
+
+
AliEMCALDigit * digit = 0 ;
+
AliEMCALDigit * curSDigit = 0 ;
+
+
TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
+
+
//Put Noise contribution
+
for(absID = 1; absID <= nEMC; absID++){
- Float_t noise = gRandom->Gaus(0., fPinNoise) ;
+
+ Float_t noise = gRandom->Gaus(0., fPinNoise);
+
new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
+
//look if we have to add signal?
+
if(absID==nextSig){
+
//Add SDigits from all inputs
+
digit = (AliEMCALDigit *) digits->At(absID-1) ;
+
+
ticks->Clear() ;
+
Int_t contrib = 0 ;
+
Float_t a = digit->GetAmp() ;
+
Float_t b = TMath::Abs( a /fTimeSignalLength) ;
+
//Mark the beginnign of the signal
+
new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
+
//Mark the end of the ignal
+
new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
+
+
// loop over input
+
+
for(i = 0; i< input ; i++){ //loop over (possible) merge sources
+
if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+
curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
+
else
+
curSDigit = 0 ;
+
//May be several digits will contribute from the same input
+
while(curSDigit && curSDigit->GetId() == absID){
+
//Shift primary to separate primaries belonging different inputs
+
Int_t primaryoffset ;
+
if(fManager)
+
primaryoffset = fManager->GetMask(i) ;
+
else
+
primaryoffset = i ;
+
curSDigit->ShiftPrimary(primaryoffset) ;
+
+
a = curSDigit->GetAmp() ;
+
b = a /fTimeSignalLength ;
+
new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
+
new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
+
+
*digit = *digit + *curSDigit ; //add energies
+
+
index[i]++ ;
+
if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+
curSDigit = (AliEMCALDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
+
else
+
curSDigit = 0 ;
+
}
+
}
+
+
//calculate and set time
+
Float_t time = FrontEdgeTime(ticks) ;
+
digit->SetTime(time) ;
+
+
//Find next signal module
+
nextSig = 200000 ;
+
for(i=0; i<input; i++){
+
sdigits = ((TClonesArray *)sdigArray->At(i)) ;
+
Int_t curNext = nextSig ;
+
if(sdigits->GetEntriesFast() > index[i] ){
+
curNext = ((AliEMCALDigit *) sdigits->At(index[i]))->GetId() ;
+
+
}
+
if(curNext < nextSig) nextSig = curNext ;
+
}
+
}
+
}
+
+
ticks->Delete() ;
+
delete ticks ;
+
+
+
+
+
//remove digits below thresholds
+
for(absID = 0; absID < nEMC/2 ; absID++){
- if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fEMCDigitThreshold)
+
+ if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fTowerDigitThreshold)
+
digits->RemoveAt(absID) ;
+
else
+
digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
+
}
+
+
for(absID = nEMC/2; absID < nEMC ; absID++){
+
if(sDigitizer->Calibrate(((AliEMCALDigit*)digits->At(absID))->GetAmp()) < fPreShowerDigitThreshold)
+
digits->RemoveAt(absID) ;
+
else
+
digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
+
}
+
+
digits->Compress() ;
+
+
Int_t ndigits = digits->GetEntriesFast() ;
+
+
digits->Expand(ndigits) ;
+
+
+
//Set indexes in list of digits
+
//Int_t i ;
- for (i = 0 ; i < ndigits ; i++) {
+
+ cout << "fNADCTower = " << fNADCTower << " fNADCPreSho = " << fNADCPreSho << endl ;
+
+ for (i = 0 ; i < ndigits ; i++) {
+
AliEMCALDigit * digit = (AliEMCALDigit *) digits->At(i) ;
+
digit->SetIndexInList(i) ;
+
Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
+
digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
+
}
+
}
+
+
//____________________________________________________________________________
+
+
Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
+
{
+
Int_t channel = -999;
+
Int_t nphi = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNPhi() ;
+
Int_t nz = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNZ() ;
+
- if(absId <= nphi*nz) //digitize as tower
- channel = (Int_t) TMath::Ceil( (energy + fADCpedestalTower)/fADCchannelTower ) ;
- if(channel > fNADCTower ) channel = fNADCTower ;
- else
- channel = (Int_t) TMath::Ceil( (energy + fADCpedestalPreSho)/fADCchannelPreSho ) ;
- if(channel > fNADCPreSho ) channel = fNADCPreSho ;
+
+ if(absId <= nphi*nz){ //digitize as tower
+
+ channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalTower)/fADCchannelTower )) ;
+
+ if(channel > fNADCTower )
+
+ channel = fNADCTower ;
+
+ } else {
+
+ channel = static_cast<Int_t>(TMath::Ceil( (energy + fADCpedestalPreSho)/fADCchannelPreSho )) ;
+
+ if(channel > fNADCPreSho )
+
+ channel = fNADCPreSho ;
+
+ }
+
+
return channel ;
+
}
+
+
//____________________________________________________________________________
+
void AliEMCALDigitizer::Exec(Option_t *option) {
+
// Managing method
+
if(strcmp(GetName(), "") == 0 )
+
Init() ;
+
+
if (strstr(option,"print")) {
+
Print("");
+
return ;
+
}
+
+
if(strstr(option,"tim"))
+
gBenchmark->Start("EMCALDigitizer");
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
+
+
Int_t nevents ;
+
+
TTree * treeD ;
+
+
if(fManager){
+
treeD = fManager->GetTreeD() ;
+
nevents = 1 ; // Will process only one event
+
}
+
else {
+
gAlice->GetEvent(0) ;
+
nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
+
treeD=gAlice->TreeD() ;
+
}
+
if(treeD == 0 ){
+
cerr << " AliEMCALDigitizer :: Can not find TreeD " << endl ;
+
return ;
+
}
+
+
//Check, if this branch already exits
+
TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
+
TIter next(lob) ;
+
TBranch * branch = 0 ;
+
Bool_t emcalfound = kFALSE, digitizerfound = kFALSE ;
+
+
while ( (branch = (TBranch*)next()) && (!emcalfound || !digitizerfound) ) {
+
if ( (strcmp(branch->GetName(), "EMCAL")==0) &&
+
(strcmp(branch->GetTitle(), GetName())==0) )
+
emcalfound = kTRUE ;
+
+
else if ( (strcmp(branch->GetName(), "AliEMCALDigitizer")==0) &&
+
(strcmp(branch->GetTitle(), GetName())==0) )
+
digitizerfound = kTRUE ;
+
}
+
+
if ( emcalfound ) {
+
cerr << "WARNING: AliEMCALDigitizer -> Digits branch with name " << GetName()
+
<< " already exits" << endl ;
+
return ;
+
}
+
if ( digitizerfound ) {
+
cerr << "WARNING: AliEMCALDigitizer -> Digitizer branch with name " << GetName()
+
<< " already exits" << endl ;
+
return ;
+
}
+
+
Int_t ievent ;
+
+
for(ievent = 0; ievent < nevents; ievent++){
+
+
if(fManager){
+
Int_t input ;
+
for(input = 0 ; input < fManager->GetNinputs(); input ++){
+
TTree * treeS = fManager->GetInputTreeS(input) ;
+
if(!treeS){
+
cerr << "AliEMCALDigitizer -> No Input " << endl ;
+
return ;
+
}
+
gime->ReadTreeS(treeS,input) ;
+
}
+
}
+
else
+
gime->Event(ievent,"S") ;
+
+
Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
+
+
WriteDigits(ievent) ;
+
+
if(strstr(option,"deb"))
+
PrintDigits(option);
+
+
//increment the total number of Digits per run
+
fDigitsInRun += gime->Digits()->GetEntriesFast() ;
+
}
+
+
if(strstr(option,"tim")){
+
gBenchmark->Stop("EMCALDigitizer");
+
cout << "AliEMCALDigitizer:" << endl ;
+
cout << " took " << gBenchmark->GetCpuTime("EMCALDigitizer") << " seconds for Digitizing "
+
<< gBenchmark->GetCpuTime("EMCALDigitizer")/nevents << " seconds per event " << endl ;
+
cout << endl ;
+
}
+
+
}
+
+
+
+
//__________________________________________________________________
+
void AliEMCALDigitizer::MixWith(char* headerFile){
+
// Alows produce digits by superimposing background and signal event.
+
// It is assumed, that headers file with SIGNAL events is opened in
+
// constructor, and now we set the BACKGROUND event, with which we
+
// will mix. Thus we avoid writing (changing) huge and expencive
+
// backgound files: all output will be writen into SIGNAL, i.e.
+
// opened in constructor file.
+
//
+
// One can open as many files to mix with as one wants.
+
+
if( strcmp(GetName(), "") == 0 )
+
Init() ;
+
+
if(fManager){
+
cout << "Can not use this method under AliRunDigitizer " << endl ;
+
return ;
+
} // check if the specified SDigits do not already exist on the White Board:
+
// //Folders/RunMC/Event/Data/EMCAL/SDigits/headerFile/sdigitsname
+
+
TString path = "Folders/RunMC/Event/Data/EMCAL/SDigits" ;
+
path += headerFile ;
+
path += "/" ;
+
path += GetName() ;
+
if ( gROOT->FindObjectAny(path.Data()) ) {
+
cerr << "WARNING: AliEMCALDigitizer::MixWith -> Entry already exists, do not add" << endl ;
+
return;
+
}
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
+
gime->PostSDigits(GetName(),headerFile) ;
+
+
// check if the requested file is already open or exist and if SDigits Branch exist
+
TFile * file = (TFile*)gROOT->FindObject(headerFile);
+
if ( !file ) {
+
file = new TFile(headerFile, "READ") ;
+
if (!file) {
+
cerr << "ERROR: AliEMCALDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
+
return ;
+
}
+
}
+
+
}
+
+
//__________________________________________________________________
+
void AliEMCALDigitizer::Print(Option_t* option)const {
+
if( strcmp(GetName(), "") != 0) {
+
+
cout << "------------------- "<< GetName() << " -------------" << endl ;
+
cout << "Digitizing sDigits from file(s): " <<endl ;
+
+
TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("Folders/RunMC/Event/Data/EMCAL/SDigits"))->GetListOfFolders() ;
+
TIter next(folderslist) ;
+
TFolder * folder = 0 ;
+
while ( (folder = (TFolder*)next()) )
+
if ( folder->FindObject(GetName()) )
+
{
+
cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
+
cout << endl ;
+
cout << "Writing digits to " << GetTitle() << endl ;
+
+
cout << endl ;
+
cout << "With following parameters: " << endl ;
+
cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
- cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl;
+
+ cout << " Threshold in EMC (fTowerDigitThreshold) = " << fTowerDigitThreshold << endl;
+
cout << " Threshold in PreShower (fPreShowerDigitThreshold) = " << fPreShowerDigitThreshold << endl ; ;
+
cout << "---------------------------------------------------" << endl ;
+
}
+
else
+
cout << "AliEMCALDigitizer not initialized " << endl ;
+
}
+
}
+
+
//__________________________________________________________________
+
void AliEMCALDigitizer::PrintDigits(Option_t * option){
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
+
TClonesArray * fDigits = gime->Digits() ;
+
+
cout << "AliEMCALDigitiser:"<< endl ;
+
cout << " Number of entries in Digits list " << fDigits->GetEntriesFast() << endl ;
+
cout << endl ;
+
if(strstr(option,"all")){
+
+
//loop over digits
+
AliEMCALDigit * digit;
+
cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
+
Int_t index ;
+
for (index = 0 ; index < fDigits->GetEntries() ; index++) {
+
digit = (AliEMCALDigit * ) fDigits->At(index) ;
+
cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
+
<< setw(6) << digit->GetIndexInList() << " "
+
<< setw(5) << digit->GetNprimary() <<" ";
+
+
Int_t iprimary;
+
for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
+
cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
+
cout << endl;
+
}
+
+
}
+
}
+
//_________________________________________________________________________________________
+
void AliEMCALDigitizer::WriteDigits(Int_t event)
+
{
+
+
// Makes TreeD in the output file.
+
// Check if branch already exists:
+
// if yes, exit without writing: ROOT TTree does not support overwriting/updating of
+
// already existing branches.
+
// else creates branch with Digits, named "EMCAL", title "...",
+
// and branch "AliEMCALDigitizer", with the same title to keep all the parameters
+
// and names of files, from which digits are made.
+
+
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
+
const TClonesArray * digits = gime->Digits(GetName()) ;
+
TTree * treeD ;
+
+
if(fManager)
+
treeD = fManager->GetTreeD() ;
+
else
+
treeD = gAlice->TreeD();
+
+
// create new branches
+
// -- generate file name if necessary
+
char * file =0;
+
if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
+
file = new char[strlen(gAlice->GetBaseFile())+20] ;
+
sprintf(file,"%s/EMCAL.Digits.root",gAlice->GetBaseFile()) ;
+
}
+
+
TDirectory *cwd = gDirectory;
+
// -- create Digits branch
+
Int_t bufferSize = 32000 ;
+
TBranch * digitsBranch = treeD->Branch("EMCAL",&digits,bufferSize);
+
digitsBranch->SetTitle(GetName());
+
if (file) {
+
digitsBranch->SetFile(file);
+
TIter next( digitsBranch->GetListOfBranches());
+
TBranch * sbr ;
+
while ((sbr=(TBranch*)next())) {
+
sbr->SetFile(file);
+
}
+
cwd->cd();
+
}
+
+
// -- Create Digitizer branch
+
Int_t splitlevel = 0 ;
+
AliEMCALDigitizer * d = gime->Digitizer(GetName()) ;
+
TBranch * digitizerBranch = treeD->Branch("AliEMCALDigitizer", "AliEMCALDigitizer", &d,bufferSize,splitlevel);
+
digitizerBranch->SetTitle(GetName());
+
if (file) {
+
digitizerBranch->SetFile(file);
+
TIter next( digitizerBranch->GetListOfBranches());
+
TBranch * sbr;
+
while ((sbr=(TBranch*)next())) {
+
sbr->SetFile(file);
+
}
+
cwd->cd();
+
}
+
+
digitsBranch->Fill() ;
+
digitizerBranch->Fill() ;
+
+
treeD->Write(0,kOverwrite) ;
+
+
}
+
//____________________________________________________________________________
+
Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
+
{ //
+
ticks->Sort() ; //Sort in accordance with times of ticks
+
TIter it(ticks) ;
+
AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
+
Float_t time = ctick->CrossingTime(fTimeThreshold) ;
+
+
AliEMCALTick * t ;
+
while((t=(AliEMCALTick*) it.Next())){
+
if(t->GetTime() < time) //This tick starts before crossing
+
*ctick+=*t ;
+
else
+
return time ;
+
+
time = ctick->CrossingTime(fTimeThreshold) ;
+
}
+
return time ;
+
}
+
//____________________________________________________________________________
+
Float_t AliEMCALDigitizer::TimeOfNoise(void)
+
{ // Calculates the time signal generated by noise
+
//to be rewritten, now returns just big number
+
return 1. ;
+
+
}
+
//____________________________________________________________________________
+
void AliEMCALDigitizer::SetSDigitsBranch(const char* title)
+
{
+
// we set title (comment) of the SDigits branch in the first! header file
+
if( strcmp(GetName(), "") == 0 )
+
Init() ;
+
+
AliEMCALGetter::GetInstance()->SDigits()->SetName(title) ;
+
}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff