//_________________________________________________________________________
//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
//////////////////////////////////////////////////////////////////////////////
-// Class performs digitization of Summable digits (in the PHOS case this is just
-// sum of contributions of all primary particles into given cell).
+// This TTask performs digitization of Summable digits (in the PHOS case it is just
+// the sum of contributions from all primary particles into a given cell).
// In addition it performs mixing of summable digits from different events.
+// The name of the TTask is also the title of the branch that will contain
+// the created SDigits
+// The title of the TTAsk is the name of the file that contains the hits from
+// which the SDigits are created
//
// For each event two branches are created in TreeD:
// "PHOS" - list of digits
// "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
//
-// Note, that one cset title for new digits branch, and repeat digitization with
+// Note, that one can set a title for new digits branch, and repeat digitization with
// another set of parameters.
//
-// Examples of use:
+// Use case:
// root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
// root[1] d->ExecuteTask()
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
// // 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
+// // Reads another set of sdigits from galice2.root
// root[3] d1->MixWith("galice3.root")
-// // Reads another portion of sdigits from galice3.root
+// // Reads another set 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
#include "TROOT.h"
#include "TFolder.h"
#include "TObjString.h"
+#include "TGeometry.h"
#include "TBenchmark.h"
+
// --- Standard library ---
#include <iomanip.h>
// --- AliRoot header files ---
-
#include "AliRun.h"
+#include "AliHeader.h"
+#include "AliStream.h"
+#include "AliRunDigitizer.h"
#include "AliPHOSDigit.h"
-#include "AliPHOSHit.h"
-#include "AliPHOSv1.h"
+#include "AliPHOS.h"
+#include "AliPHOSGetter.h"
#include "AliPHOSDigitizer.h"
#include "AliPHOSSDigitizer.h"
#include "AliPHOSGeometry.h"
+#include "AliPHOSTick.h"
ClassImp(AliPHOSDigitizer)
//____________________________________________________________________________
- AliPHOSDigitizer::AliPHOSDigitizer():TTask("AliPHOSDigitizer","")
+ AliPHOSDigitizer::AliPHOSDigitizer()
{
// ctor
+ InitParameters() ;
+ fDefaultInit = kTRUE ;
+ fManager = 0 ; // We work in the standalong mode
- fSDigitizer = 0 ;
- fNinputs = 1 ;
- fPinNoise = 0.01 ;
- fEMCDigitThreshold = 0.01 ;
- fCPVNoise = 0.01;
- fCPVDigitThreshold = 0.09 ;
- fPPSDNoise = 0.0000001;
- fPPSDDigitThreshold = 0.0000002 ;
- fInitialized = kFALSE ;
-
- fHeaderFiles = 0;
- fSDigitsTitles = 0;
- fSDigits = 0 ;
- fDigits = 0;
+ }
-}
//____________________________________________________________________________
-void AliPHOSDigitizer::Init(){
-// Makes all memory allocations
-
- if(!fInitialized){
-
- cout << "In Init" << endl ;
-
- fHeaderFiles = new TClonesArray("TObjString",1) ;
- new((*fHeaderFiles)[0]) TObjString("galice.root") ;
-
- //Test, if this file already open
-
- TFile *file = (TFile*) gROOT->GetFile(((TObjString *) fHeaderFiles->At(0))->GetString() ) ;
-
- if(file == 0){
- file = new TFile(((TObjString *) fHeaderFiles->At(0))->GetString(),"update") ;
- gAlice = (AliRun *) file->Get("gAlice") ;
- }
- else
- file = new TFile(((TObjString *) fHeaderFiles->At(0))->GetString()) ;
-
- file->cd() ;
-
- fSDigitsTitles = new TClonesArray("TObjString",1);
- new((*fSDigitsTitles)[0]) TObjString("") ;
-
- fSDigits = new TClonesArray("TClonesArray",1) ;
- new((*fSDigits)[0]) TClonesArray("AliPHOSDigit",1000) ;
+AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile, const char * name, const Bool_t toSplit)
+{
+ // ctor
- fSDigitizer = 0 ;
-
- fDigitsTitle = "" ;
-
- fDigits = new TClonesArray("AliPHOSDigit",200000) ;
-
- fIevent = new TArrayI(1) ;
- fIevent->AddAt(-1,0 ) ;
- fIeventMax = new TArrayI(1) ;
-
- fIeventMax->AddAt((Int_t) gAlice->TreeE()->GetEntries(), 0 );
-
- // add Task to //root/Tasks folder
- TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
- roottasks->Add(this) ;
-
- fInitialized = kTRUE ;
- }
-
+ SetTitle(headerFile) ;
+ SetName(name) ;
+ fManager = 0 ; // We work in the standalong mode
+ fSplitFile= 0 ;
+ InitParameters() ;
+ fToSplit = toSplit ;
+ Init() ;
+ fDefaultInit = kFALSE ;
}
//____________________________________________________________________________
-AliPHOSDigitizer::AliPHOSDigitizer(const char *HeaderFile,const char *sDigitsTitle):
- TTask("AliPHOSDigitizer","")
+AliPHOSDigitizer::AliPHOSDigitizer(AliRunDigitizer * ard):AliDigitizer(ard)
{
// ctor
- fHeaderFiles = new TClonesArray("TObjString",1) ;
- new((*fHeaderFiles)[0]) TObjString(HeaderFile) ;
-
- // Header file, where result will be stored
- TFile * file = (TFile*) gROOT->GetFile(((TObjString *) fHeaderFiles->At(0))->GetString() ) ;
- if(file==0){
- file = new TFile(((TObjString *) fHeaderFiles->At(0))->GetString(),"update") ;
- gAlice = (AliRun *) file->Get("gAlice") ; //If not read yet
+ SetTitle(ard->GetInputFileName(0,0)) ;
+ InitParameters() ;
+ fDefaultInit = kFALSE ;
+ fSplitFile = 0 ;
+
+ if (ard->GetOutputFile()) {
+ SetName(ard->GetOutputFile().Data());
+ fToSplit = kTRUE ;
+ } else {
+ SetName("Default") ;
+ fToSplit = kFALSE ;
}
-
- file->cd() ;
-
- fSDigitsTitles = new TClonesArray("TObjString",1); // Title name of the SDigits branch
- new((*fSDigitsTitles)[0]) TObjString(sDigitsTitle) ;
-
- fSDigits = new TClonesArray("TClonesArray",1) ; // here list of SDigits wil be stored
- new((*fSDigits)[0]) TClonesArray("AliPHOSDigit",1000) ;
-
- fDigits = new TClonesArray("AliPHOSDigit",200000) ;
-
- fDigitsTitle = "" ;
-
-
- fSDigitizer = 0 ;
-
- fIevent = new TArrayI(1) ;
- fIevent->AddAt(-1,0 ) ;
- fIeventMax = new TArrayI(1) ;
-
- // Get number of events to process
- fIeventMax->AddAt((Int_t) gAlice->TreeE()->GetEntries(), 0 );
-
- fNinputs = 1 ;
-
- fPinNoise = 0.01 ;
- fEMCDigitThreshold = 0.01 ;
- fCPVNoise = 0.01;
- fCPVDigitThreshold = 0.09 ;
- fPPSDNoise = 0.0000001;
- fPPSDDigitThreshold = 0.0000002 ;
-
- // add Task to //root/Tasks folder
- TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
- roottasks->Add(this) ;
- fInitialized = kTRUE ;
-
}
//____________________________________________________________________________
AliPHOSDigitizer::~AliPHOSDigitizer()
{
// dtor
-
- if(fHeaderFiles) delete fHeaderFiles ;
- if(fSDigitsTitles) delete fSDigitsTitles ;
- if(fSDigits) delete fSDigits ;
- if(fDigits) delete fDigits ;
+
+ fSplitFile = 0 ;
}
-//____________________________________________________________________________
-void AliPHOSDigitizer::Reset() {
- //sets current event number to the first simulated event
-
- if(!fInitialized)
- Init() ;
- Int_t inputs ;
- for(inputs = 0; inputs < fNinputs ;inputs++)
- fIevent->AddAt(-1, inputs ) ;
-
-}
//____________________________________________________________________________
-Bool_t AliPHOSDigitizer::Combinator() {
-
- //Makes all desirable combinations Signal+Background,
- // returns kFALSE when all combinations are made
- // May be useful to introduce some options like "One-to-One", "All-to-One" and "All-to-All" ?
-
- //realizing "One-to-One" option...
-
- if(!fInitialized)
- Init() ;
-
- Int_t inputs ;
- Bool_t endNotReached = kTRUE ;
-
- for(inputs = 0; (inputs < fNinputs) && endNotReached ;inputs++){
- if(fIevent->At(inputs)+1 < fIeventMax->At(inputs))
- fIevent->AddAt(fIevent->At(inputs)+1, inputs ) ;
- else
- if(inputs == 0)
- endNotReached = kFALSE ;
- else //for inputs other than base one start from the beginning
- fIevent->AddAt(0, inputs ) ;
-
- }
- return endNotReached ;
+void AliPHOSDigitizer::Digitize(const Int_t event)
+{
-}
+ // Makes the digitization of the collected summable digits.
+ // It first creates the array of all PHOS modules
+ // filled with noise (different for EMC, CPV and PPSD) and
+ // then adds contributions from SDigits.
+ // This design avoids scanning over the list of digits to add
+ // contribution to new SDigits only.
-//____________________________________________________________________________
-void AliPHOSDigitizer::Digitize(Option_t *option) {
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ TClonesArray * digits = gime->Digits(GetName()) ;
- // Makes the digitization of the collected summable digits
- // for this it first creates the array of all PHOS 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.
-
- if(!fInitialized)
- Init() ;
-
- fDigits->Clear() ;
-
- AliPHOS * PHOS = (AliPHOS *) gAlice->GetDetector("PHOS") ;
- AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance( PHOS->GetGeometry()->GetName(), PHOS->GetGeometry()->GetTitle() );
+ digits->Clear() ;
+ const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
//Making digits with noise, first EMC
Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
Int_t nCPV ;
- Int_t nPPSD ;
Int_t absID ;
TString name = geom->GetName() ;
- if ( name == "IHEP" || name == "MIXT" )
- nCPV =nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
- geom->GetNCPVModules()*geom->GetNumberOfCPVLayers() ;
- else
- nCPV = nEMC;
-
- if ( name == "GPS2" || name == "MIXT" )
- nPPSD =nCPV+2*geom->GetNPPSDModules()*geom->GetNumberOfModulesPhi()*geom->GetNumberOfModulesZ()*
- geom->GetNumberOfPadsPhi()*geom->GetNumberOfPadsZ() ;
- else
- nPPSD = nCPV;
+ nCPV = nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
+ geom->GetNModules() ;
+ digits->Expand(nCPV) ;
- fDigits->Expand(nPPSD) ;
-
-
- for(absID = 1; absID <= nEMC; absID++){
- Float_t noise = gRandom->Gaus(0., fPinNoise) ;
- new((*fDigits)[absID-1]) AliPHOSDigit( -1,absID,fSDigitizer->Digitize(noise) ) ;
- }
-
- for(absID = nEMC+1; absID <= nCPV; absID++){
- Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
- new((*fDigits)[absID-1]) AliPHOSDigit( -1,absID,fSDigitizer->Digitize(noise) ) ;
+ // get first the sdigitizer from the tasks list (must have same name as the digitizer)
+ const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
+ if ( !sDigitizer) {
+ cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
+ abort() ;
}
-
- for(absID = nCPV+1; absID <= nPPSD; absID++){
- Float_t noise = gRandom->Gaus(0., fPPSDNoise) ;
- new((*fDigits)[absID-1]) AliPHOSDigit( -1,absID,fSDigitizer->Digitize(noise) ) ;
+
+ // 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()) ) ) {
+ TString fileName(folder->GetName()) ;
+ fileName.ReplaceAll("_","/") ;
+// cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits "
+// << GetName() << " from " << fileName << endl ;
+ sdigArray->AddAt(sdigits, input) ;
+ input++ ;
+ }
}
-
- // Now look throught (unsorted) list of SDigits and add corresponding digits
- AliPHOSDigit *curSDigit ;
- AliPHOSDigit *digit ;
-
- Int_t inputs;
- for(inputs = 0; inputs< fNinputs ; inputs++){ //loop over (possible) merge sources
-
- TClonesArray * sdigits= (TClonesArray *)fSDigits->At(inputs) ;
- Int_t isdigit ;
-
- Int_t nSDigits = sdigits->GetEntries() ;
- for(isdigit=0;isdigit< nSDigits; isdigit++){
- curSDigit = (AliPHOSDigit *)sdigits->At(isdigit) ;
- if(inputs) //Shift primaries for non-background sdigits
- curSDigit->ShiftPrimary(inputs) ;
- digit = (AliPHOSDigit *)fDigits->At(curSDigit->GetId() - 1);
- *digit = *digit + *curSDigit ;
- }
+ //Find the first crystall 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 = ((AliPHOSDigit *)sdigits->At(0))->GetId() ;
+ if(curNext < nextSig)
+ nextSig = curNext ;
}
+ TArrayI index(input) ;
+ index.Reset() ; //Set all indexes to zero
- //remove digits below thresholds
- for(absID = 0; absID < nEMC ; absID++)
- if(fSDigitizer->Calibrate(((AliPHOSDigit*)fDigits->At(absID))->GetAmp()) < fEMCDigitThreshold)
- fDigits->RemoveAt(absID) ;
- for(absID = nEMC; absID < nCPV ; absID++)
- if(fSDigitizer->Calibrate(((AliPHOSDigit*)fDigits->At(absID))->GetAmp()) < fCPVDigitThreshold)
- fDigits->RemoveAt(absID) ;
- for(absID = nCPV; absID < nPPSD ; absID++)
- if(fSDigitizer->Calibrate(((AliPHOSDigit *)fDigits->At(absID))->GetAmp()) < fPPSDDigitThreshold)
- fDigits->RemoveAt(absID) ;
-
- fDigits->Compress() ;
-
- Int_t ndigits = fDigits->GetEntriesFast() ;
+ AliPHOSDigit * digit ;
+ AliPHOSDigit * curSDigit ;
- fDigits->Expand(ndigits) ;
+ TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
+ //Put Noise contribution
+ for(absID = 1; absID <= nEMC; absID++){
+ Float_t noise = gRandom->Gaus(0., fPinNoise) ;
+ new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
+ //look if we have to add signal?
+ digit = (AliPHOSDigit *) digits->At(absID-1) ;
+
+ if(absID==nextSig){
+ //Add SDigits from all inputs
+ 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++]) AliPHOSTick(digit->GetTime(),0, b);
+ //Mark the end of the ignal
+ new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
+
+ //loop over inputs
+ for(i=0; i<input; i++){
+ if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+ curSDigit = (AliPHOSDigit*)((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 = 10000000*i ;
+ curSDigit->ShiftPrimary(primaryoffset) ;
+
+ a = curSDigit->GetAmp() ;
+ b = a /fTimeSignalLength ;
+ new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
+ new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
+
+ *digit = *digit + *curSDigit ; //add energies
+
+ index[i]++ ;
+ if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+ curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
+ else
+ curSDigit = 0 ;
+ }
+ }
- //Set indexes in list of digits
- Int_t i ;
- for (i = 0 ; i < ndigits ; i++) {
- AliPHOSDigit * digit = (AliPHOSDigit *) fDigits->At(i) ;
- digit->SetIndexInList(i) ;
+ //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 = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
+
+ }
+ if(curNext < nextSig) nextSig = curNext ;
+ }
+ }
}
-}
-//____________________________________________________________________________
-void AliPHOSDigitizer::WriteDigits(){
-
- // Made TreeD in the output file. Check if branch already exists: if yes, exits
- // without writing: ROOT TTree does not suppert overwriting/updating of the
- // already existing branches. Creates branch with Digits, named "PHOS", title "...",
- // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
- // and names of files, from which digits are made.
+
+ ticks->Delete() ;
+ delete ticks ;
- gAlice->GetEvent(fIevent->At(0)) ; // Suitable only for One-To-One mixing
- gAlice->SetEvent(fIevent->At(0)) ; // for all-to-all will produce a lot of branches in TreeD
- if(gAlice->TreeD()==0)
- gAlice->MakeTree("D") ;
+ //Now CPV digits (different noise and no timing)
+ for(absID = nEMC+1; absID <= nCPV; absID++){
+ Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
+ new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
+ //look if we have to add signal?
+ if(absID==nextSig){
+ digit = (AliPHOSDigit *) digits->At(absID-1) ;
+ //Add SDigits from all inputs
+ for(i=0; i<input; i++){
+ if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+ curSDigit = (AliPHOSDigit*)((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 = 10000000*i ;
+ curSDigit->ShiftPrimary(primaryoffset) ;
+
+ //add energies
+ *digit = *digit + *curSDigit ;
+ index[i]++ ;
+ if(((TClonesArray *)sdigArray->At(i))->GetEntriesFast() > index[i] )
+ curSDigit = (AliPHOSDigit*)((TClonesArray *)sdigArray->At(i))->At(index[i]) ;
+ else
+ curSDigit = 0 ;
+ }
+ }
-
- //Check, if this branch already exits?
- TBranch * digitsBranch = 0;
- TBranch * digitizerBranch = 0;
-
- TObjArray * branches = gAlice->TreeD()->GetListOfBranches() ;
- Int_t ibranch;
- Bool_t phosNotFound = kTRUE ;
- Bool_t digitizerNotFound = kTRUE ;
-
- for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
-
- if(phosNotFound){
- digitsBranch=(TBranch *) branches->At(ibranch) ;
- if( (strcmp("PHOS",digitsBranch->GetName())==0 ) &&
- (fDigitsTitle.CompareTo(digitsBranch->GetTitle()) == 0) )
- phosNotFound = kFALSE ;
- }
- if(digitizerNotFound){
- digitizerBranch = (TBranch *) branches->At(ibranch) ;
- if( (strcmp(digitizerBranch->GetName(),"AliPHOSDigitizer") == 0) &&
- (fDigitsTitle.CompareTo(digitizerBranch->GetTitle()) == 0))
- digitizerNotFound = kFALSE ;
+ //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 = ((AliPHOSDigit *) sdigits->At(index[i]))->GetId() ;
+ if(curNext < nextSig) nextSig = curNext ;
+ }
+
}
}
+ delete sdigArray ; //We should not delete its contents
- if(!(digitizerNotFound && phosNotFound)){
- cout << "AliPHOSDigitizer error: " << endl ;
- cout << " can not update/overwrite existing branches "<< endl ;
- cout << " do not write " << endl ;
- return ;
+
+ //remove digits below thresholds
+ for(i = 0; i < nEMC ; i++){
+ digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
+ if(sDigitizer->Calibrate( digit->GetAmp() ) < fEMCDigitThreshold)
+ digits->RemoveAt(i) ;
+ else
+ digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
}
- // create new branches
- //First generate file name
- char * file =0;
- if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
- file = new char[strlen(gAlice->GetBaseFile())+20] ;
- sprintf(file,"%s/PHOS.Digits.root",gAlice->GetBaseFile()) ;
- }
-
- TDirectory *cwd = gDirectory;
-
- //First create list of sdigits
- Int_t bufferSize = 32000 ;
- digitsBranch = gAlice->TreeD()->Branch("PHOS",&fDigits,bufferSize);
- digitsBranch->SetTitle(fDigitsTitle.Data());
- if (file) {
- digitsBranch->SetFile(file);
- TIter next( digitsBranch->GetListOfBranches());
- while ((digitsBranch=(TBranch*)next())) {
- digitsBranch->SetFile(file);
- }
- cwd->cd();
- }
+ for(i = nEMC; i < nCPV ; i++)
+ if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(i))->GetAmp()) < fCPVDigitThreshold)
+ digits->RemoveAt(i) ;
- //second - create Digitizer
- Int_t splitlevel = 0 ;
- AliPHOSDigitizer * d = this ;
- digitizerBranch = gAlice->TreeD()->Branch("AliPHOSDigitizer","AliPHOSDigitizer",
- &d,bufferSize,splitlevel);
- digitizerBranch->SetTitle(fDigitsTitle.Data());
- if (file) {
- digitizerBranch->SetFile(file);
- TIter next( digitizerBranch->GetListOfBranches());
- while ((digitizerBranch=(TBranch*)next())) {
- digitizerBranch->SetFile(file);
- }
- cwd->cd();
- }
-
- gAlice->TreeD()->Fill() ;
+ digits->Compress() ;
- gAlice->TreeD()->Write(0,kOverwrite) ;
+ Int_t ndigits = digits->GetEntriesFast() ;
+ digits->Expand(ndigits) ;
- //remove fSDigitizer before new event.
- if(fSDigitizer){
- delete fSDigitizer ;
- fSDigitizer = 0 ;
+ //Set indexes in list of digits and make true digitization of the energy
+ for (i = 0 ; i < ndigits ; i++) {
+ digit = dynamic_cast<AliPHOSDigit*>( digits->At(i) ) ;
+ digit->SetIndexInList(i) ;
+ Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
+ digit->SetAmp(DigitizeEnergy(energy,digit->GetId()) ) ;
}
+}
+//____________________________________________________________________________
+Int_t AliPHOSDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
+{
+ Int_t chanel ;
+ if(absId <= fEmcCrystals){ //digitize as EMC
+ chanel = (Int_t) TMath::Ceil((energy - fADCpedestalEmc)/fADCchanelEmc) ;
+ if(chanel > fNADCemc ) chanel = fNADCemc ;
+ }
+ else{ //Digitize as CPV
+ chanel = (Int_t) TMath::Ceil((energy - fADCpedestalCpv)/fADCchanelCpv) ;
+ if(chanel > fNADCcpv ) chanel = fNADCcpv ;
+ }
+ return chanel ;
}
//____________________________________________________________________________
-void AliPHOSDigitizer::Exec(Option_t *option) {
+void AliPHOSDigitizer::Exec(Option_t *option)
+{
// Managing method
- if(!fInitialized) Init() ;
-
+ if(strcmp(GetName(), "") == 0 )
+ Init() ;
+ if (strstr(option,"print")) {
+ Print("");
+ return ;
+ }
+
if(strstr(option,"tim"))
gBenchmark->Start("PHOSDigitizer");
- //reset events numbers to start from the beginnig
- Reset() ;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+
+ Int_t nevents ;
- while(Combinator()){
+ TTree * treeD ;
+
+ if(fManager){
+ treeD = fManager->GetTreeD() ;
+ nevents = 1 ; // Will process only one event
- if(!ReadSDigits()) //read sdigits event(s) evaluated by Combinator() from file(s)
- return ;
+ //Check, if this branch already exits
+ if (treeD) {
+ TObjArray * lob = (TObjArray*)treeD->GetListOfBranches() ;
+ TIter next(lob) ;
+ TBranch * branch = 0 ;
+ Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
+
+ while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
+ if ( (strcmp(branch->GetName(), "PHOS")==0) &&
+ (strcmp(branch->GetTitle(), GetName())==0) )
+ phosfound = kTRUE ;
+
+ else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) &&
+ (strcmp(branch->GetTitle(), GetName())==0) )
+ digitizerfound = kTRUE ;
+ }
+
+ if ( phosfound ) {
+ cerr << "WARNING: AliPHOSDigitizer -> Digits branch with name " << GetName()
+ << " already exits" << endl ;
+ return ;
+ }
+ if ( digitizerfound ) {
+ cerr << "WARNING: AliPHOSDigitizer -> Digitizer branch with name " << GetName()
+ << " already exits" << endl ;
+ return ;
+ }
+ }
+ }
+ else { //PHOS standalone
+ if(gime->BranchExists("Digits") )
+ return ;
+ nevents=gime->MaxEvent() ;
+ }
+
+ 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 << "AliPHOSDigitizer::Exec -> No Input " << endl ;
+ return ;
+ }
+ gime->ReadTreeS(treeS,input) ;
+ }
+
+ }
+ else
+ gime->Event(ievent,"S") ;
+
+ Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
- Digitize(option) ; //Add prepared SDigits to digits and add the noise
- WriteDigits() ;
+ 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("PHOSDigitizer");
cout << "AliPHOSDigitizer:" << endl ;
- cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for SDigitizing "
- << gBenchmark->GetCpuTime("PHOSDigitizer")/(fIeventMax->At(0)) << " seconds per event " << endl ;
+ cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for Digitizing "
+ << gBenchmark->GetCpuTime("PHOSDigitizer")/nevents << " seconds per event " << endl ;
cout << endl ;
}
}
-//__________________________________________________________________
-Bool_t AliPHOSDigitizer::ReadSDigits(){
-// Reads summable digits from the opened files for the particular set of events given by fIevent
-
- if(!fInitialized) Init() ;
-
-
- Int_t inputs ;
- for(inputs = fNinputs-1; inputs >= 0; inputs --){
+//____________________________________________________________________________
+Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks)
+{ //
+ ticks->Sort() ; //Sort in accordance with times of ticks
+ TIter it(ticks) ;
+ AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
+ Float_t time = ctick->CrossingTime(fTimeThreshold) ;
+
+ AliPHOSTick * t ;
+ while((t=(AliPHOSTick*) it.Next())){
+ if(t->GetTime() < time) //This tick starts before crossing
+ *ctick+=*t ;
+ else
+ return time ;
- Int_t event = fIevent->At(inputs) ;
+ time = ctick->CrossingTime(fTimeThreshold) ;
+ }
+ return time ;
+}
- TFile * file = (TFile*) gROOT->GetFile(((TObjString *) fHeaderFiles->At(inputs))->GetString() ) ;
- file->cd() ;
+//____________________________________________________________________________
+Bool_t AliPHOSDigitizer::Init()
+{
+ // Makes all memory allocations
- // Get SDigits Tree header from file
- char treeName[20];
- sprintf(treeName,"TreeS%d",event);
- TTree * treeS = (TTree*)file->Get(treeName);
-
- if(treeS==0){
- cout << "Error at AliPHOSDigitizer: no "<<treeName << " in file " << file->GetName() << endl ;
- cout << "Do nothing " << endl ;
- return kFALSE ;
- }
+ if( strcmp(GetTitle(), "") == 0 )
+ SetTitle("galice.root") ;
- TBranch * sdigitsBranch = 0;
- TBranch * sdigitizerBranch = 0;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName(), fToSplit) ;
+ if ( gime == 0 ) {
+ cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
+ return kFALSE;
+ }
+
+ const AliPHOSGeometry * geom = gime->PHOSGeometry() ;
- TObjArray * branches = treeS->GetListOfBranches() ;
- Int_t ibranch;
- Bool_t phosNotFound = kTRUE ;
- Bool_t sdigitizerNotFound = kTRUE ;
+ fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
- for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
-
- if(phosNotFound){
- sdigitsBranch=(TBranch *) branches->At(ibranch) ;
- if(( strcmp("PHOS",sdigitsBranch->GetName())==0 ) &&
- ((TObjString*) fSDigitsTitles->At(inputs))->GetString().CompareTo(sdigitsBranch->GetTitle())== 0 )
- phosNotFound = kFALSE ;
-
- }
-
- if(sdigitizerNotFound){
- sdigitizerBranch = (TBranch *) branches->At(ibranch) ;
- if(( strcmp(sdigitizerBranch->GetName(),"AliPHOSSDigitizer") == 0) &&
- ((TObjString*) fSDigitsTitles->At(inputs))->GetString().CompareTo(sdigitizerBranch->GetTitle())== 0 )
- sdigitizerNotFound = kFALSE ;
-
- }
- }
-
- if(sdigitizerNotFound || phosNotFound){
- cout << "Can't find Branch with sdigits or SDigitizer in the file " ;
- if( ((TObjString*)fSDigitsTitles->At(inputs))->GetString().IsNull() )
- cout << file->GetName() << endl ;
- else
- cout << ((TObjString*)fSDigitsTitles->At(inputs))->GetString().Data() << endl ;
- cout << "Do nothing" <<endl ;
- return kFALSE ;
- }
-
- TClonesArray * sdigits = (TClonesArray*) fSDigits->At(inputs) ;
- sdigitsBranch->SetAddress(&sdigits) ;
-
- AliPHOSSDigitizer *sDigitizer = new AliPHOSSDigitizer();
- sdigitizerBranch->SetAddress(&sDigitizer) ;
- treeS->GetEvent(0) ;
-
- if(fSDigitizer == 0)
- fSDigitizer = sDigitizer ;
+ // Post Digits to the white board
+ gime->PostDigits(GetName() ) ;
+
+ // Post Digitizer to the white board
+ gime->PostDigitizer(this) ;
+
+ fSplitFile = 0 ;
+ if(fToSplit){
+ // construct the name of the file as /path/PHOS.SDigits.root
+ //First - extract full path if necessary
+ TString digitsFileName(GetTitle()) ;
+ Ssiz_t islash = digitsFileName.Last('/') ;
+ if(islash<digitsFileName.Length())
+ digitsFileName.Remove(islash+1,digitsFileName.Length()) ;
else
- if(!((*fSDigitizer)==(*sDigitizer)) ){
- cout << "AliPHOSDigitizer ERROR:" << endl ;
- cout << " you are using sdigits made with different SDigitizers" << endl ;
- cout << "fSD " << fSDigitizer << " SD" << sDigitizer << endl ;
- fSDigitizer->Print("") ;
- sDigitizer->Print("") ;
- cout << "Do Nothing " << endl ;
- return kFALSE ;
- }
-
+ digitsFileName="" ;
+ // Next - append the file name
+ digitsFileName+="PHOS.Digits." ;
+ if((strcmp(GetName(),"Default")!=0)&&(strcmp(GetName(),"")!=0)){
+ digitsFileName+=GetName() ;
+ digitsFileName+="." ;
+ }
+ digitsFileName+="root" ;
+ // Finally - check if the file already opened or open the file
+ fSplitFile = static_cast<TFile*>(gROOT->GetFile(digitsFileName.Data()));
+ if(!fSplitFile)
+ fSplitFile = TFile::Open(digitsFileName.Data(),"update") ;
}
- fPedestal = fSDigitizer->GetPedestalParameter() ;
- fSlope = fSDigitizer->GetCalibrationParameter() ;
+ //Mark that we will use current header file
+ if(!fManager){
+ gime->PostSDigits(GetName(),GetTitle()) ;
+ gime->PostSDigitizer(GetName(),GetTitle()) ;
+ }
return kTRUE ;
+}
+//____________________________________________________________________________
+void AliPHOSDigitizer::InitParameters()
+{
+ fPinNoise = 0.004 ;
+ fEMCDigitThreshold = 0.012 ;
+ fCPVNoise = 0.01;
+ fCPVDigitThreshold = 0.09 ;
+ fTimeResolution = 0.5e-9 ;
+ fTimeSignalLength = 1.0e-9 ;
+ fDigitsInRun = 0 ;
+ fADCchanelEmc = 0.0015; // width of one ADC channel in GeV
+ fADCpedestalEmc = 0.005 ; //
+ fNADCemc = (Int_t) TMath::Power(2,16) ; // number of channels in EMC ADC
+
+ fADCchanelCpv = 0.0012 ; // width of one ADC channel in CPV 'popugais'
+ fADCpedestalCpv = 0.012 ; //
+ fNADCcpv = (Int_t) TMath::Power(2,12); // number of channels in CPV ADC
+
+ fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
+
}
+
//__________________________________________________________________
-void AliPHOSDigitizer::MixWith(char* HeaderFile, char* sDigitsTitle){
- // Alows produce digits by superimposing background and signal event.
+void AliPHOSDigitizer::MixWith(const char* headerFile)
+{
+ // Allows to 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
+ // the constructor.
+ // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
+ // Thus we avoid writing (changing) huge and expensive
// 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.
+ // One can open as many files to mix with as one needs.
+ // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
+ // can be mixed.
-
- if(!fInitialized)
+ if( strcmp(GetName(), "") == 0 )
Init() ;
-
- if(HeaderFile == 0){
- cout << "Specify at least header file to merge"<< endl ;
+ if(fManager){
+ cout << "Can not use this method under AliRunDigitizer " << endl ;
return ;
}
- Int_t inputs ;
- for(inputs = 0; inputs < fNinputs ; inputs++){
- if(strcmp(((TObjString *)fHeaderFiles->At(inputs))->GetString(),HeaderFile) == 0 ){
- if(sDigitsTitle == 0){
- if(((TObjString*)fSDigitsTitles->At(inputs))->GetString().CompareTo("") == 0){
- cout << "Entry already exists, do not add" << endl ;
- return ;
- }
- }
- else
- if(((TObjString*)fSDigitsTitles->At(inputs))->GetString().CompareTo(sDigitsTitle)){
- cout << "Entry already exists, do not add" << endl ;
- return;
- }
- }
- }
-
- fHeaderFiles->Expand(fNinputs+1) ;
- new((*fHeaderFiles)[fNinputs]) TObjString(HeaderFile) ;
-
-
- TFile * file = new TFile(((TObjString *) fHeaderFiles->At(fNinputs))->GetString()) ;
-
- file->cd() ;
-
- fSDigitsTitles->Expand(fNinputs+1) ;
- new((*fSDigitsTitles)[fNinputs]) TObjString(sDigitsTitle) ;
-
- fSDigits->Expand(fNinputs+1) ;
- new((*fSDigits)[fNinputs]) TClonesArray("AliPHOSDigit",1000) ;
-
- fIevent->Set(fNinputs+1) ;
- fIevent->AddAt(-1, fNinputs) ;
-
- fIeventMax->Set(fNinputs+1) ;
-
- TTree * te = (TTree *) file->Get("TE") ;
- fIeventMax->AddAt((Int_t) te->GetEntries(), fNinputs );
+ // check if the specified SDigits do not already exist on the White Board:
+ // //Folders/RunMC/Event/Data/PHOS/SDigits/headerFile/sdigitsname
+
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ TString path = gime->SDigitsFolder()->GetName() ;
+
+ // before it was ???? "Folders/RunMC/Event/Data/PHOS/SDigits" ;
+ path += headerFile ;
+ path += "/" ;
+ path += GetName() ;
+ if ( gROOT->FindObjectAny(path.Data()) ) {
+ cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
+ return;
+ }
+
+ gime->PostSDigits(GetName(),headerFile) ;
- fNinputs++ ;
+ // 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: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
+ return ;
+ }
+ }
}
+
//__________________________________________________________________
void AliPHOSDigitizer::Print(Option_t* option)const {
-
- if(fInitialized){
-
+ // Print Digitizer's parameters
+ if( strcmp(GetName(), "") != 0 ){
+
+
cout << "------------------- "<< GetName() << " -------------" << endl ;
- cout << "Digitizing sDigits from file(s): " <<endl ;
- Int_t input ;
- for(input = 0; input < fNinputs ; input++) {
- cout << " " << ((TObjString *) fHeaderFiles->At(input))->GetString() <<
- " Branch title:" << ((TObjString *) fSDigitsTitles->At(input))->GetString() << endl ;
- }
- cout << endl ;
- cout << "Writing digits to " << ((TObjString *) fHeaderFiles->At(0))->GetString() << endl ;
-
+
+ const Int_t nStreams = GetNInputStreams() ;
+ if (nStreams) {
+ Int_t index = 0 ;
+ for (index = 0 ; index < nStreams ; index++)
+ cout << "Adding SDigits " << GetName() << " from " << fManager->GetInputFileName(index, 0) << endl ;
+
+ cout << endl ;
+ cout << "Writing digits to " << fManager->GetInputFileName(0, 0) << endl ;
+ } else {
+// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+// gime->Folder("sdigits") ;
+// cout << "Digitizing sDigits from file(s): " <<endl ;
+// TCollection * folderslist = gime->Folder("sdigits")->GetListOfFolders() ;
+// TIter next(folderslist) ;
+// TFolder * folder = 0 ;
+
+// while ( (folder = (TFolder*)next()) ) {
+// if ( folder->FindObject(GetName()) )
+ // cout << "Adding SDigits " << GetName() << " from " << GetSDigitsFileName() << 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 << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
- cout << " Noise in PPSD (fPPSDNoise) = " << fPPSDNoise << endl ;
- cout << " Threshold in PPSD (fPPSDDigitThreshold) = " << fPPSDDigitThreshold << endl ;
cout << "---------------------------------------------------" << endl ;
}
else
cout << "AliPHOSDigitizer not initialized " << endl ;
}
+
//__________________________________________________________________
void AliPHOSDigitizer::PrintDigits(Option_t * option){
-
- cout << "AliPHOSDigitiser:"<< endl ;
- cout << " Number of entries in Digits list " << fDigits->GetEntriesFast() << endl ;
+ // Print a table of digits
+
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ TClonesArray * digits = gime->Digits() ;
+
+ cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
+ cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
cout << endl ;
- if(strstr(option,"all")){
+ if(strstr(option,"all")||strstr(option,"EMC")){
//loop over digits
AliPHOSDigit * digit;
- cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
+ cout << "EMC digits (with primaries): " << endl ;
+ cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
+ Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
Int_t index ;
- for (index = 0 ; index < fDigits->GetEntries() ; index++) {
- digit = (AliPHOSDigit * ) fDigits->At(index) ;
- cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
- << setw(6) << digit->GetIndexInList() << " "
- << setw(5) << digit->GetNprimary() <<" ";
+ for (index = 0 ; (index < digits->GetEntriesFast()) &&
+ (((AliPHOSDigit * ) digits->At(index))->GetId() <= maxEmc) ; index++) {
+ digit = (AliPHOSDigit * ) digits->At(index) ;
+ if(digit->GetNprimary() == 0) continue;
+ cout << setw(6) << digit->GetId() << " " << setw(10) << 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 << setw(5) << digit->GetPrimary(iprimary+1) << " ";
cout << endl;
- }
+ }
+ cout << endl;
+ }
+
+ if(strstr(option,"all")||strstr(option,"CPV")){
+ //loop over CPV digits
+ AliPHOSDigit * digit;
+ cout << "CPV digits: " << endl ;
+ cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
+ Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
+ Int_t index ;
+ for (index = 0 ; index < digits->GetEntriesFast(); index++) {
+ digit = (AliPHOSDigit * ) digits->At(index) ;
+ if(digit->GetId() > maxEmc){
+ cout << setw(6) << digit->GetId() << " " << setw(10) << 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 AliPHOSDigitizer::SetSDigitsBranch(const char* title){
- // we set title (comment) of the SDigits branch in the first! header file
- if(!fInitialized) Init() ;
- ((TObjString*) fSDigitsTitles->At(0) )->SetString((char*)title) ;
+//__________________________________________________________________
+Float_t AliPHOSDigitizer::TimeOfNoise(void)
+{ // Calculates the time signal generated by noise
+ //to be rewritten, now returns just big number
+ return 1. ;
}
-//__________________________________________________________________
-void AliPHOSDigitizer::SetDigitsBranch(const char* title){
- //Sets the title (comment) of the branch to which Digits branch
- if(!fInitialized) Init() ;
+
+//____________________________________________________________________________
+void AliPHOSDigitizer::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 "PHOS", title "...",
+ // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
+ // and names of files, from which digits are made.
+
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ const TClonesArray * digits = gime->Digits(GetName()) ;
+ TTree * treeD ;
+
+ if(fManager)
+ treeD = fManager->GetTreeD() ;
+ else {
+ if((gAlice->TreeD() == 0) || (fSplitFile)) // we should not create TreeD if it is already here
+ gAlice->MakeTree("D", fSplitFile); // We overwrite TreeD in split file in the case of second reconstruction
+ if(fSplitFile)
+ fSplitFile->cd() ;
+ treeD = gAlice->TreeD();
+ }
- fDigitsTitle = title ;
+ // -- create Digits branch
+ Int_t bufferSize = 32000 ;
+ TBranch * digitsBranch = treeD->Branch("PHOS",&digits,bufferSize);
+ digitsBranch->SetTitle(GetName());
+
+ // -- Create Digitizer branch
+ Int_t splitlevel = 0 ;
+ const AliPHOSDigitizer * d = dynamic_cast<const AliPHOSDigitizer *>(gime->Digitizer()) ;
+ TBranch * digitizerBranch = treeD->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
+ digitizerBranch->SetTitle(GetName());
+ digitsBranch->Fill() ;
+ digitizerBranch->Fill() ;
+ treeD->AutoSave() ;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff