// A Summable Digits is the sum of all hits originating
// from one in one tower of the EMCAL
// A threshold for assignment of the primary to SDigit is applied
+//
+// JLK 26-Jun-2008 Added explanation:
+// SDigits need to hold the energy sum of the hits, but AliEMCALDigit
+// can (should) only store amplitude. Therefore, the SDigit energy is
+// "digitized" before being stored and must be "calibrated" back to an
+// energy before SDigits are summed to form true Digits
+//
// SDigits are written to TreeS, branch "EMCAL"
// AliEMCALSDigitizer with all current parameters is written
// to TreeS branch "AliEMCALSDigitizer".
// based on : AliPHOSSDigitzer
//////////////////////////////////////////////////////////////////////////////
-
// --- ROOT system ---
-#include "TFile.h"
-#include "TTask.h"
-#include "TTree.h"
-#include "TSystem.h"
-#include "TROOT.h"
-#include "TFolder.h"
-#include "TBenchmark.h"
+#include <TBenchmark.h>
+#include <TBrowser.h>
+//#include <Riostream.h>
+#include <TMath.h>
+#include <TROOT.h>
+
// --- Standard library ---
-#include <iomanip.h>
+#include "stdlib.h"
// --- AliRoot header files ---
-#include "AliRun.h"
+#include "AliLog.h"
+#include "AliRunLoader.h"
+#include "AliStack.h"
#include "AliEMCALDigit.h"
+#include "AliEMCALLoader.h"
#include "AliEMCALHit.h"
#include "AliEMCALSDigitizer.h"
#include "AliEMCALGeometry.h"
-#include "AliEMCALv1.h"
-#include "AliEMCALGetter.h"
+#include "AliEMCALSimParam.h"
ClassImp(AliEMCALSDigitizer)
-
//____________________________________________________________________________
- AliEMCALSDigitizer::AliEMCALSDigitizer():TTask("AliEMCALSDigitizer","")
+AliEMCALSDigitizer::AliEMCALSDigitizer()
+ : TTask("",""),
+ fA(0.),fB(0.),fECPrimThreshold(0.),
+ fDefaultInit(kTRUE),
+ fEventFolderName(0),
+ fInit(0),
+ fSDigitsInRun(0),
+ fFirstEvent(0),
+ fLastEvent(0),
+ fSampling(0.)
{
// ctor
- fA = fB = fNevents = 0 ;
- fTowerPrimThreshold = fPreShowerPrimThreshold = fPhotonElectronFactor = 0. ;
- fHits = fSDigits = fSDigits = 0 ;
-
- fIsInitialized = kFALSE ;
-
-
+ InitParameters();
}
//____________________________________________________________________________
-AliEMCALSDigitizer::AliEMCALSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask(sDigitsTitle, headerFile)
+AliEMCALSDigitizer::AliEMCALSDigitizer(const char * alirunFileName,
+ const char * eventFolderName)
+ : TTask("EMCAL"+AliConfig::Instance()->GetSDigitizerTaskName(), alirunFileName),
+ fA(0.),fB(0.),fECPrimThreshold(0.),
+ fDefaultInit(kFALSE),
+ fEventFolderName(eventFolderName),
+ fInit(0),
+ fSDigitsInRun(0),
+ fFirstEvent(0),
+ fLastEvent(0),
+ fSampling(0.)
{
// ctor
- fA = 0;
- fB = 10000000.;
- fTowerPrimThreshold = 0.01 ;
- fPreShowerPrimThreshold = 0.0001 ;
- fNevents = 0 ;
- fPhotonElectronFactor = 5000. ; // photoelectrons per GeV
Init();
+ InitParameters() ;
+
}
+
//____________________________________________________________________________
-AliEMCALSDigitizer::~AliEMCALSDigitizer()
+AliEMCALSDigitizer::AliEMCALSDigitizer(const AliEMCALSDigitizer & sd)
+ : TTask(sd.GetName(),sd.GetTitle()),
+ fA(sd.fA),
+ fB(sd.fB),
+ fECPrimThreshold(sd.fECPrimThreshold),
+ fDefaultInit(sd.fDefaultInit),
+ fEventFolderName(sd.fEventFolderName),
+ fInit(sd.fInit),
+ fSDigitsInRun(sd.fSDigitsInRun),
+ fFirstEvent(sd.fFirstEvent),
+ fLastEvent(sd.fLastEvent),
+ fSampling(sd.fSampling)
{
- // dtor
- if(fSDigits)
- delete fSDigits ;
- if(fHits)
- delete fHits ;
+ //cpy ctor
}
+
+
//____________________________________________________________________________
-void AliEMCALSDigitizer::Init(){
+AliEMCALSDigitizer::~AliEMCALSDigitizer() {
+ //dtor
+ AliLoader *emcalLoader=0;
+ if ((emcalLoader = AliRunLoader::Instance()->GetDetectorLoader("EMCAL")))
+ emcalLoader->CleanSDigitizer();
+}
+//____________________________________________________________________________
+void AliEMCALSDigitizer::Init(){
// Initialization: open root-file, allocate arrays for hits and sdigits,
- // attach task SDigitizer to the list of PHOS tasks
+ // attach task SDigitizer to the list of EMCAL tasks
//
// Initialization can not be done in the default constructor
//============================================================= YS
// The initialisation is now done by the getter
-if( strcmp(GetTitle(), "") == 0 )
- SetTitle("galice.root") ;
-
- AliEMCALGetter * gime = AliEMCALGetter::GetInstance(GetTitle(), GetName(), "update") ;
- if ( gime == 0 ) {
- cerr << "ERROR: AliEMCALSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
+ fInit = kTRUE;
+
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+
+ if ( emcalLoader == 0 ) {
+ Fatal("Init", "Could not obtain the AliEMCALLoader");
return ;
}
- gime->PostSDigits( GetName(), GetTitle() ) ;
+ emcalLoader->PostSDigitizer(this);
+ emcalLoader->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
+
+}
- TString sdname(GetName() );
- sdname.Append(":") ;
- sdname.Append(GetTitle() ) ;
- SetName(sdname) ;
- gime->PostSDigitizer(this) ;
-
- // create a folder on the white board //YSAlice/WhiteBoard/SDigits/EMCAL/headerFile/sdigitsTitle
-
- }
-//____________________________________________________________________________
-void AliEMCALSDigitizer::Exec(Option_t *option) {
+//____________________________________________________________________________
+void AliEMCALSDigitizer::InitParameters()
+{
+ //initialize parameters for sdigitization
-// Collects all hits in the same active volume into digit
-
- if( strcmp(GetName(), "") == 0 )
- Init() ;
+ const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
+ if (geom->GetSampling() == 0.) {
+ Fatal("InitParameters", "Sampling factor not set !") ;
+ }
+
+ // Get the parameters from the OCDB via the loader
+ AliRunLoader *rl = AliRunLoader::Instance();
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
+ AliEMCALSimParam * simParam = 0x0;
+ if(emcalLoader) simParam = emcalLoader->SimulationParameters();
+
+ if(!simParam){
+ simParam = AliEMCALSimParam::GetInstance();
+ AliWarning("Simulation Parameters not available in OCDB?");
+ }
+
+ //
+ //JLK 26-Jun-2008 THIS SHOULD HAVE BEEN EXPLAINED AGES AGO:
+ //
+ //In order to be able to store SDigit Energy info into
+ //AliEMCALDigit, we need to convert it temporarily to an ADC amplitude
+ //and later when summing SDigits to form digits, convert it back to
+ //energy. These fA and fB parameters accomplish this through the
+ //Digitize() and Calibrate() methods
+ //
+ // Initializes parameters
+ fA = simParam->GetA(); //0;
+ fB = simParam->GetB(); //1.e+6; // Changed 24 Apr 2007. Dynamic range now 2 TeV
+ fSampling = geom->GetSampling();
+
+ // threshold for deposit energy of hit
+ fECPrimThreshold = simParam->GetECPrimaryThreshold();//0.05;// GeV // 22-may-07 was 0// 24-nov-04 - was 1.e-6;
+ AliDebug(2,Form("Print: \n------------------- %s -------------\n",GetName()));
+ AliDebug(2,Form(" fInit %i\n", int(fInit)));
+ AliDebug(2,Form(" fFirstEvent %i\n", fFirstEvent));
+ AliDebug(2,Form(" fLastEvent %i\n", fLastEvent));
+ AliDebug(2,Form(" Writing SDigits to branch with title %s\n", fEventFolderName.Data()));
+ AliDebug(2,Form(" with digitization parameters A = %f\n", fA));
+ AliDebug(2,Form(" B = %f\n", fB));
+ AliDebug(2,Form(" Threshold for EC Primary assignment = %f\n", fECPrimThreshold));
+ AliDebug(2,Form(" Sampling = %f\n", fSampling));
+ AliDebug(2,Form("---------------------------------------------------\n"));
+
+}
+
+//____________________________________________________________________________
+void AliEMCALSDigitizer::Exec(Option_t *option)
+{
+ // Collects all hit of the same tower into digits
+ TString o(option); o.ToUpper();
if (strstr(option, "print") ) {
- Print("") ;
+
+ AliDebug(2,Form("Print: \n------------------- %s -------------\n",GetName()));
+ AliDebug(2,Form(" fInit %i\n", int(fInit)));
+ AliDebug(2,Form(" fFirstEvent %i\n", fFirstEvent));
+ AliDebug(2,Form(" fLastEvent %i\n", fLastEvent));
+ AliDebug(2,Form(" Writing SDigits to branch with title %s\n", fEventFolderName.Data()));
+ AliDebug(2,Form(" with digitization parameters A = %f\n", fA));
+ AliDebug(2,Form(" B = %f\n", fB));
+ AliDebug(2,Form(" Threshold for EC Primary assignment = %f\n", fECPrimThreshold));
+ AliDebug(2,Form(" Sampling = %f\n", fSampling));
+ AliDebug(2,Form("---------------------------------------------------\n"));
+
return ;
}
-
+
+
if(strstr(option,"tim"))
gBenchmark->Start("EMCALSDigitizer");
- //Check, if this branch already exits
- gAlice->GetEvent(0) ;
- if(gAlice->TreeS() ) {
- TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
- TIter next(lob) ;
- TBranch * branch = 0 ;
- Bool_t emcalfound = kFALSE, sdigitizerfound = kFALSE ;
-
- while ( (branch = (static_cast<TBranch*>(next()))) && (!emcalfound || !sdigitizerfound) ) {
- if ( (strcmp(branch->GetName(), "EMCAL")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
- emcalfound = kTRUE ;
-
- else if ( (strcmp(branch->GetName(), "AliEMCALSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
- sdigitizerfound = kTRUE ;
+
+ AliRunLoader *rl = AliRunLoader::Instance();
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
+
+ //switch off reloading of this task while getting event
+ if (!fInit) { // to prevent overwrite existing file
+ AliError( Form("Give a version name different from %s", fEventFolderName.Data()) ) ;
+ return ;
}
-
- if ( emcalfound || sdigitizerfound ) {
- cerr << "WARNING: AliEMCALSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
- << " already exits" << endl ;
- return ;
- }
- }
- TString sdname(GetName()) ;
- sdname.Remove(sdname.Index(GetTitle())-1) ;
- AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
- Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
-
- Int_t ievent ;
- for(ievent = 0; ievent < nevents; ievent++){
- gime->Event(ievent,"H") ;
- const TClonesArray * fHits = gime->Hits() ;
- TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
- sdigits->Clear();
- Int_t nSdigits = 0 ;
- //Collects all hits in the same active volume into digit
-
-
-
-
- //Now made SDigits from hits, for EMCAL it is the same, so just copy
- // Int_t itrack ;
- // for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
- //gime->Track(itrack);
- //=========== Get the EMCAL branch from Hits Tree for the Primary track itrack
-
- Int_t i;
- for ( i = 0 ; i < fHits->GetEntries() ; i++ ) { // loop over all hits (hit = deposited energy/layer/entering particle)
- AliEMCALHit * hit = dynamic_cast<AliEMCALHit*>(fHits->At(i)) ;
- AliEMCALDigit * curSDigit = 0 ;
- AliEMCALDigit * sdigit = 0 ;
- Bool_t newsdigit = kTRUE;
+ if (fLastEvent == -1)
+ fLastEvent = rl->GetNumberOfEvents() - 1 ;
+ else {
+ fLastEvent = TMath::Min(fLastEvent, rl->GetNumberOfEvents()-1);
+ }
+ Int_t nEvents = fLastEvent - fFirstEvent + 1;
-
+ Int_t ievent;
+ Float_t energy=0.; // de * fSampling - 23-nov-04
+ rl->LoadKinematics();
+ rl->LoadHits("EMCAL");
- // Assign primary number only if deposited energy is significant
-
- if( (!hit->IsInPreShower() && hit->GetEnergy() > fTowerPrimThreshold) ||
- (hit->IsInPreShower() && hit->GetEnergy() > fPreShowerPrimThreshold)) {
- curSDigit = new AliEMCALDigit( hit->GetPrimary(),
- hit->GetIparent(),Layer2TowerID(hit->GetId(),hit->IsInPreShower()),
- Digitize(hit->GetEnergy()),
- hit->GetTime()) ;
- } else {
- curSDigit = new AliEMCALDigit( -1 ,
- -1 ,
- Layer2TowerID(hit->GetId(),hit->IsInPreShower()),
- Digitize(hit->GetEnergy()),
- hit->GetTime() ) ;
- }
- Int_t check = 0 ;
- for(check= 0; check < nSdigits ; check++) {
- sdigit = (AliEMCALDigit *)sdigits->At(check);
- if( sdigit->GetId() == curSDigit->GetId()) { // Are we in the same tower or the same preshower ?
- *sdigit = *sdigit + *curSDigit;
-
- newsdigit = kFALSE;
- }
- }
- if (newsdigit) {
- new((*sdigits)[nSdigits]) AliEMCALDigit(*curSDigit);
- nSdigits++ ;
- }
- } // loop over all hits (hit = deposited energy/layer/entering particle)
- // } // loop over tracks
-
- sdigits->Sort() ;
+ for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
+ rl->GetEvent(ievent);
+ TTree * treeS = emcalLoader->TreeS();
+ if ( !treeS ) {
+ emcalLoader->MakeSDigitsContainer();
+ treeS = emcalLoader->TreeS();
+ }
+ TClonesArray * hits = emcalLoader->Hits() ;
+ TClonesArray * sdigits = emcalLoader->SDigits() ;
+ sdigits->Clear();
+
+ Int_t nSdigits = 0 ;
+ Int_t i;
+
+ AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
+ for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
+ AliEMCALHit * hit = dynamic_cast<AliEMCALHit*>(hits->At(i)) ;
+ AliEMCALDigit * curSDigit = 0 ;
+ AliEMCALDigit * sdigit = 0 ;
+ Bool_t newsdigit = kTRUE;
- nSdigits = sdigits->GetEntriesFast() ;
- sdigits->Expand(nSdigits) ;
+ // hit->GetId() - Absolute Id number EMCAL segment
+ if(geom->CheckAbsCellId(hit->GetId())) { // was IsInECA(hit->GetId())
+ energy = hit->GetEnergy() * fSampling; // 23-nov-04
+ if(energy > fECPrimThreshold )
+ // Assign primary number only if deposited energy is significant
+ curSDigit = new AliEMCALDigit( hit->GetPrimary(),
+ hit->GetIparent(), hit->GetId(),
+ Digitize(energy), hit->GetTime(),
+ -1, energy ) ;
+ else
+ curSDigit = new AliEMCALDigit( -1 ,
+ -1 ,
+ hit->GetId(),
+ Digitize(energy), hit->GetTime(),
+ -1, energy ) ;
+ } else {
+ Warning("Exec"," abs id %i is bad \n", hit->GetId());
+ newsdigit = kFALSE;
+ curSDigit = 0;
+ }
- // Int_t i ;
- const AliEMCALGeometry * geom = gime->EMCALGeometry() ;
-
- Int_t lastPreShowerIndex = nSdigits - 1 ;
- if (!(dynamic_cast<AliEMCALDigit *>(sdigits->At(lastPreShowerIndex))->IsInPreShower()))
- lastPreShowerIndex = -2;
- Int_t firstPreShowerIndex = 100000 ;
- Int_t index ;
- AliEMCALDigit * sdigit = 0 ;
- for ( index = 0; index < nSdigits ; index++) {
- sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index) ) ;
- if (sdigit->IsInPreShower() ){
- firstPreShowerIndex = index ;
- break ;
- }
- }
-
- AliEMCALDigit * preshower ;
- AliEMCALDigit * tower ;
- Int_t lastIndex = lastPreShowerIndex +1 ;
-
-
- for (index = firstPreShowerIndex ; index <= lastPreShowerIndex; index++) {
- preshower = dynamic_cast<AliEMCALDigit *>(sdigits->At(index) );
- Bool_t towerFound = kFALSE ;
- Int_t jndex ;
- for (jndex = 0; jndex < firstPreShowerIndex; jndex++) {
- tower = dynamic_cast<AliEMCALDigit *>(sdigits->At(jndex) );
- if ( (preshower->GetId() - (geom->GetNZ() * geom->GetNPhi()) ) == tower->GetId() ) {
- Float_t towerEnergy = static_cast<Float_t>(tower->GetAmp()) ;
- Float_t preshoEnergy = static_cast<Float_t>(preshower->GetAmp()) ;
- towerEnergy +=preshoEnergy ;
- *tower = *tower + *preshower ; // and add preshower multiplied by layer ratio to tower
- tower->SetAmp(static_cast<Int_t>(TMath::Ceil(towerEnergy))) ;
- towerFound = kTRUE ;
+ if(curSDigit != 0){
+ for(Int_t check= 0; check < nSdigits ; check++) {
+ sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(check)) ;
+
+ if( sdigit->GetId() == curSDigit->GetId()) { // Are we in the same ECAL tower ?
+ *sdigit = *sdigit + *curSDigit;
+ newsdigit = kFALSE;
+ }
}
}
- if ( !towerFound ) {
-
- new((*sdigits)[lastIndex]) AliEMCALDigit(*preshower);
- AliEMCALDigit * temp = dynamic_cast<AliEMCALDigit *>(sdigits->At(lastIndex)) ;
- temp->SetId(temp->GetId() - (geom->GetNZ() * geom->GetNPhi()) ) ;
- lastIndex++ ;
+ if (newsdigit) {
+ new((*sdigits)[nSdigits]) AliEMCALDigit(*curSDigit);
+ nSdigits++ ;
}
- }
-
+ delete curSDigit ;
+ } // loop over all hits (hit = deposited energy/entering particle)
sdigits->Sort() ;
- Int_t NPrimarymax = -1 ;
+
+ nSdigits = sdigits->GetEntriesFast() ;
+ fSDigitsInRun += nSdigits ;
+
for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
- sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(i)) ;
+
AliEMCALDigit * sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(i)) ;
sdigit->SetIndexInList(i) ;
}
- for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
- if (((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) > NPrimarymax)
- NPrimarymax = ((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) ;
- }
- if(gAlice->TreeS() == 0)
- gAlice->MakeTree("S") ;
- cout << " AliEMCALSDigitizer:: NPrimaryMax = " << NPrimarymax << endl;
-
-
-
- //Make (if necessary) branches
- char * file =0;
- if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
- file = new char[strlen(gAlice->GetBaseFile())+20] ;
- sprintf(file,"%s/EMCAL.SDigits.root",gAlice->GetBaseFile()) ;
- }
-
- TDirectory *cwd = gDirectory;
-
- //First list of sdigits
- Int_t bufferSize = 32000 ;
- TBranch * sdigitsBranch = gAlice->TreeS()->Branch("EMCAL",&sdigits,bufferSize);
- sdigitsBranch->SetTitle(sdname);
- cout << " AliEMCALSDigitizer::Exec sdname " << sdname << endl ;
-
- if (file) {
- sdigitsBranch->SetFile(file);
- TIter next( sdigitsBranch->GetListOfBranches());
- TBranch * subbr;
- while ((subbr=(TBranch*)next())) {
- subbr->SetFile(file);
- }
- cwd->cd();
- }
-
- //second - SDigitizer
- Int_t splitlevel = 0 ;
- AliEMCALSDigitizer * sd = this ;
- TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliEMCALSDigitizer","AliEMCALSDigitizer",
- &sd,bufferSize,splitlevel);
- sdigitizerBranch->SetTitle(sdname);
- if (file) {
- sdigitizerBranch->SetFile(file);
- TIter next( sdigitizerBranch->GetListOfBranches());
- TBranch * subbr ;
- while ((subbr=(TBranch*)next())) {
- subbr->SetFile(file);
- }
- cwd->cd();
- delete file;
- }
-
- sdigitsBranch->Fill() ;
- sdigitizerBranch->Fill() ;
- gAlice->TreeS()->Write(0,TObject::kOverwrite) ;
-
- if(strstr(option,"deb"))
- PrintSDigits(option) ;
-
+ // Now write SDigits
+
+ Int_t bufferSize = 32000 ;
+ TBranch * sdigitsBranch = treeS->GetBranch("EMCAL");
+ if (sdigitsBranch)
+ sdigitsBranch->SetAddress(&sdigits);
+ else
+ treeS->Branch("EMCAL",&sdigits,bufferSize);
+
+ treeS->Fill();
+
+ emcalLoader->WriteSDigits("OVERWRITE");
+
+ //NEXT - SDigitizer
+ emcalLoader->WriteSDigitizer("OVERWRITE"); // why in event cycle ?
+
+ if(strstr(option,"deb"))
+ PrintSDigits(option) ;
}
- if(strstr(option,"tim")){
- gBenchmark->Stop("EMCALSDigitizer");
- cout << "AliEMCALSDigitizer:" << endl ;
- cout << " took " << gBenchmark->GetCpuTime("EMCALSDigitizer") << " seconds for SDigitizing "
- << gBenchmark->GetCpuTime("EMCALSDigitizer")/fNevents << " seconds per event " << endl ;
- cout << endl ;
- }
+ Unload();
+ emcalLoader->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
+ if(strstr(option,"tim")){
+ gBenchmark->Stop("EMCALSDigitizer");
+ printf("\n Exec: took %f seconds for SDigitizing %f seconds per event\n",
+ gBenchmark->GetCpuTime("EMCALSDigitizer"), gBenchmark->GetCpuTime("EMCALSDigitizer")/nEvents ) ;
+ }
}
+
//__________________________________________________________________
-void AliEMCALSDigitizer::SetSDigitsBranch(const char * title ){
-
- // Setting title to branch SDigits
-
- TString stitle(title) ;
-
- // check if branch with title already exists
- TBranch * sdigitsBranch =
- static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("EMCAL")) ;
- TBranch * sdigitizerBranch =
- static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliEMCALSDigitizer")) ;
- const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
- const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
- if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
- cerr << "ERROR: AliEMCALSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
- return ;
+Int_t AliEMCALSDigitizer::Digitize(Float_t energy)const {
+ // Digitize the energy
+ //
+ //JLK 26-Jun-2008 EXPLANATION LONG OVERDUE:
+ //
+ //We have to digitize the SDigit energy so that it can be stored in
+ //AliEMCALDigit, which has only an ADC amplitude member and
+ //(rightly) no energy member. This method converts the energy to an
+ //integer which can be re-converted back to an energy with the
+ //Calibrate(energy) method when it is time to create Digits from SDigits
+ //
+ Double_t aSignal = fA + energy*fB;
+ if (TMath::Abs(aSignal)>2147483647.0) {
+ //PH 2147483647 is the max. integer
+ //PH This apparently is a problem which needs investigation
+ AliWarning(Form("Too big or too small energy %f",aSignal));
+ aSignal = TMath::Sign((Double_t)2147483647,aSignal);
}
-
- cout << "AliEMCALSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
+ return (Int_t ) aSignal;
+}
- SetName(title) ;
-
- // Post to the WhiteBoard
- AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
- gime->PostSDigits( title, GetTitle()) ;
+//__________________________________________________________________
+Float_t AliEMCALSDigitizer::Calibrate(Int_t amp)const {
+ //
+ // Convert the amplitude back to energy in GeV
+ //
+ //JLK 26-Jun-2008 EXPLANATION LONG OVERDUE:
+ //
+ //We have to digitize the SDigit energy with the method Digitize()
+ //so that it can be stored in AliEMCALDigit, which has only an ADC
+ //amplitude member and (rightly) no energy member. This method is
+ //just the reverse of Digitize(): it converts the stored amplitude
+ //back to an energy value in GeV so that the SDigit energies can be
+ //summed before adding noise and creating digits out of them
+ //
+ return (Float_t)(amp - fA)/fB;
+}
+
+//__________________________________________________________________
+void AliEMCALSDigitizer::Print1(Option_t * option)
+{
+ Print();
+ PrintSDigits(option);
}
+
//__________________________________________________________________
-void AliEMCALSDigitizer::Print(Option_t* option)const{
- cout << "------------------- "<< GetName() << " -------------" << endl ;
- cout << " Writing SDigitis to branch with title " << GetName() << endl ;
- cout << " with digitization parameters A = " << fA << endl ;
- cout << " B = " << fB << endl ;
- cout << " Threshold for Primary assignment in Tower = " << fTowerPrimThreshold << endl ;
- cout << " Threshold for Primary assignment in PreShower = " << fPreShowerPrimThreshold << endl ;
- cout << "---------------------------------------------------"<<endl ;
-
+void AliEMCALSDigitizer::Print(Option_t *option) const
+{
+ // Prints parameters of SDigitizer
+ printf("Print: \n------------------- %s ------------- option %s\n", GetName() , option) ;
+ printf(" fInit %i\n", int(fInit));
+ printf(" fFirstEvent %i\n", fFirstEvent);
+ printf(" fLastEvent %i\n", fLastEvent);
+ printf(" Writing SDigits to branch with title %s\n", fEventFolderName.Data()) ;
+ printf(" with digitization parameters A = %f\n", fA) ;
+ printf(" B = %f\n", fB) ;
+ printf(" Threshold for EC Primary assignment = %f\n", fECPrimThreshold) ;
+ printf(" Sampling = %f\n", fSampling);
+ printf("---------------------------------------------------\n") ;
}
+
//__________________________________________________________________
-Bool_t AliEMCALSDigitizer::operator==( AliEMCALSDigitizer const &sd )const{
+Bool_t AliEMCALSDigitizer::operator==( AliEMCALSDigitizer const &sd )const
+{
+ // Equal operator.
+ // SDititizers are equal if their pedestal, slope and threshold are equal
if( (fA==sd.fA)&&(fB==sd.fB)&&
- (fTowerPrimThreshold==sd.fTowerPrimThreshold) &&
- (fPreShowerPrimThreshold==sd.fPreShowerPrimThreshold))
+ (fECPrimThreshold==sd.fECPrimThreshold))
return kTRUE ;
else
return kFALSE ;
}
+
//__________________________________________________________________
-void AliEMCALSDigitizer::PrintSDigits(Option_t * option){
+void AliEMCALSDigitizer::PrintSDigits(Option_t * option)
+{
//Prints list of digits produced at the current pass of AliEMCALDigitizer
+
+ AliEMCALLoader *rl = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+ const TClonesArray * sdigits = rl->SDigits() ;
- AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
- TString sdname(GetName()) ;
- sdname.Remove(sdname.Index(GetTitle())-1) ;
- const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
-
- cout << "AliEMCALSDigitiser: event " << gAlice->GetEvNumber() << endl ;
- cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
- cout << endl ;
+ printf("\n") ;
+ printf("event %i", rl->GetRunLoader()->GetEventNumber());
+ printf(" Number of entries in SDigits list %i", sdigits->GetEntriesFast());
if(strstr(option,"all")||strstr(option,"EMC")){
-
+
//loop over digits
AliEMCALDigit * digit;
- cout << "SDigit Id " << " Amplitude " << " Time " << " Index " << " Nprim " << " Primaries list " << endl;
- Int_t index ;
+ printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
+ Int_t index, isum=0;
+ char * tempo = new char[8192];
for (index = 0 ; index < sdigits->GetEntries() ; index++) {
- digit = (AliEMCALDigit * ) sdigits->At(index) ;
- cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " " << digit->GetTime()
- << setw(6) << digit->GetIndexInList() << " "
- << setw(5) << digit->GetNprimary() <<" ";
+ digit = dynamic_cast<AliEMCALDigit *>( sdigits->At(index) ) ;
+ sprintf(tempo, "\n%6d %8d %6.5e %4d %2d :",
+ digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
+ printf("%s",tempo);
+ isum += digit->GetAmp();
Int_t iprimary;
- for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
- cout << " " << digit->GetPrimary(iprimary+1) << " ";
- cout << endl;
+ for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
+ sprintf(tempo, "%d ",digit->GetPrimary(iprimary+1) ) ;
+ printf("%s",tempo);
+ }
}
- cout <<endl;
- }
+ delete tempo ;
+ printf("\n** Sum %i : %10.3f GeV/c **\n ", isum, Calibrate(isum));
+ } else printf("\n");
+}
+
+//____________________________________________________________________________
+void AliEMCALSDigitizer::Unload() const
+{
+ // Unload Hits and SDigits from the folder
+ AliEMCALLoader *rl = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+ rl->UnloadHits() ;
+ rl->UnloadSDigits() ;
}
-//________________________________________________________________________
-Int_t AliEMCALSDigitizer::Layer2TowerID(Int_t ihit, Bool_t preshower){
- // Method to Transform from Hit Id to Digit Id
- // This function should be one to one
- AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
- const AliEMCALGeometry * geom = gime->EMCALGeometry();
- Int_t ieta = (ihit/geom->GetNPhi())%geom->GetNZ(); // eta Tower Index
- Int_t iphi = (ihit-1)%(geom->GetNPhi())+1; //phi Tower Index
- Int_t it = -10;
- Int_t ipre = 0;
-
- if (preshower)ipre = 1;
- if (iphi > 0 && ieta >= 0){
- it = iphi+ieta*geom->GetNPhi() + ipre*geom->GetNPhi()*geom->GetNZ();
- return it;
- }else{
- cerr << " AliEMCALSDigitizer::Layer2TowerID() -- there is an error "<< endl << "Eta number = "
- << ieta << "Phi number = " << iphi << endl ;
- return it;
- } // end if iphi>0 && ieta>0
+
+//____________________________________________________________________________
+void AliEMCALSDigitizer::Browse(TBrowser* b)
+{
+ TTask::Browse(b);
}
-//_______________________________________________________________________________________
-// void AliEMCALSDigitizer::TestTowerID(void)
-// {
-// Int_t j;
-
-// Bool_t preshower = kFALSE;
-// for (j = 0 ; j < 10 ; j++){ // loop over hit id
-// Int_t i;
-// for (i = 0 ; i <= 2 ; i++){ // loop over
-// Int_t k = i*96*144+j*144+1;
-// cout << " Hit Index = " << k << " " << j*10 << " TOWERID = " << Layer2TowerID(k, preshower) << endl ;
-// }
-// }
-// }
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff