* provided "as is" without express or implied warranty. *
**************************************************************************/
-//_________________________________________________________________________
-//
-// This constructs Digits out of Hits
-//
+///_________________________________________________________________________
+///
+/// This class constructs Digits out of Hits
+///
+///
// --- Standard library ---
-#include <Riostream.h>
-#include <stdlib.h>
// --- ROOT system ---
-#include <TFile.h>
-#include <TFolder.h>
-#include <TROOT.h>
-#include <TSystem.h>
#include <TTree.h>
-#include <TVirtualMC.h>
// --- AliRoot header files ---
#include "AliVZEROConst.h"
#include "AliRun.h"
#include "AliVZERO.h"
#include "AliVZEROhit.h"
-#include "AliHit.h"
-#include "AliDetector.h"
#include "AliRunLoader.h"
#include "AliLoader.h"
-#include "AliConfig.h"
#include "AliRunDigitizer.h"
-#include "AliDigitizer.h"
-#include "AliHeader.h"
-#include "AliStack.h"
-#include "AliVZERODigitizer.h"
#include "AliVZEROdigit.h"
-#include "AliMC.h"
+#include "AliVZERODigitizer.h"
ClassImp(AliVZERODigitizer)
AliVZERODigitizer::AliVZERODigitizer()
{
- if (!fDigits) fDigits = new TClonesArray("AliVZEROdigit", 1000);
-
- fNevents = 0 ;
- fDigits = 0 ;
+ // default constructor
+
fNdigits = 0;
- fHits = 0 ;
- fRunLoader = 0;
+ fDigits = 0 ;
fPhotoCathodeEfficiency = 0.18;
fPMVoltage = 768.0;
{
// constructor
- fNevents = 0;
- fDigits = 0;
fNdigits = 0;
- fHits = 0;
- fRunLoader = 0;
+ fDigits = 0 ;
fPhotoCathodeEfficiency = 0.18;
fPMVoltage = 768.0;
if (fDigits) {
fDigits->Delete();
delete fDigits;
- fDigits=0; }
+ fDigits=0;
+ }
}
-//____________________________________________________________________________
-void AliVZERODigitizer::OpengAliceFile(const char *file)
+//_____________________________________________________________________________
+Bool_t AliVZERODigitizer::Init()
{
- // Loads galice.root file and corresponding header, kinematics
- // hits and digits
-
- fRunLoader = AliRunLoader::Open(file,AliConfig::GetDefaultEventFolderName(),
- "UPDATE");
-
- if (!fRunLoader)
- {
- Error("Open","Can not open session for file %s.",file);
- }
-
- fRunLoader->LoadgAlice();
- fRunLoader->LoadHeader();
- fRunLoader->LoadKinematics();
+ // Initialises the digitizer
- gAlice = fRunLoader->GetAliRun();
-
- if (gAlice)
- { printf("<AliVZEROdigitizer::Open> ");
- printf("AliRun object found on file.\n");}
- else
- { printf("<AliVZEROdigitizer::Open> ");
- printf("Could not find AliRun object.\n");}
-
- // Initialise Hit and Digit arrays
- fHits = new TClonesArray ("AliVZEROhit", 1000);
+ // Initialises the Digit array
fDigits = new TClonesArray ("AliVZEROdigit", 1000);
- fVZERO = (AliVZERO*) gAlice->GetDetector("VZERO");
- fVZEROLoader = fRunLoader->GetLoader("VZEROLoader");
-
- if (fVZEROLoader == 0x0){
- cerr<<"Hits2Digits : Can not find VZERO or VZEROLoader\n";}
-
- Int_t retval = fVZEROLoader->LoadHits("read");
- if (retval){
- Error("Open","Error occured while loading hits... Exiting.");
- return;}
-
- fVZEROLoader->LoadDigits("recreate");
+ return kTRUE;
}
//____________________________________________________________________________
-void AliVZERODigitizer::Exec()
- {
-
+void AliVZERODigitizer::Exec(Option_t* /*option*/)
+{
+ //
+ // Creates digits from hits
+ //
+
fNdigits = 0;
- Int_t N;
Int_t map[96];
- Int_t cell = 0;
Float_t cPM = fPhotoCathodeEfficiency * fPMGain;
for(Int_t i=0; i<96; i++) map[i] = 0;
- fNevents = (Int_t) fRunLoader->TreeE()->GetEntries ();
- printf(" Number of events in file = %d \n", fNevents);
-
- for (Int_t ievent = 0; ievent < fNevents; ievent++){
-
- for(Int_t i=0; i<96; i++) map[i] = 0;
-
- fRunLoader->GetEvent(ievent);
+ AliRunLoader* outRunLoader =
+ AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
+ if (!outRunLoader) {
+ Error("Exec", "Can not get output Run Loader");
+ return;
+ }
+ AliLoader* outLoader = outRunLoader->GetLoader("VZEROLoader");
+ if (!outLoader) {
+ Error("Exec", "Can not get output VZERO Loader");
+ return;
+ }
+
+ outLoader->LoadDigits("update");
+ if (!outLoader->TreeD()) outLoader->MakeTree("D");
+ outLoader->MakeDigitsContainer();
+ TTree* treeD = outLoader->TreeD();
+ Int_t bufsize = 16000;
+ treeD->Branch("VZERODigit", &fDigits, bufsize);
+
+ for (Int_t iInput = 0; iInput < fManager->GetNinputs(); iInput++) {
+ AliRunLoader* runLoader =
+ AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
+ AliLoader* loader = runLoader->GetLoader("VZEROLoader");
+ if (!loader) {
+ Error("Exec", "Can not get VZERO Loader for input %d", iInput);
+ continue;
+ }
+ if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
+
+ AliVZERO* vzero = (AliVZERO*) runLoader->GetAliRun()->GetDetector("VZERO");
+ if (!vzero) {
+ Error("Exec", "No VZERO detector for input %d", iInput);
+ continue;
+ }
- fTreeH = fVZEROLoader->TreeH();
- if (fTreeH == 0x0)
- { Error("Exec","Cannot get TreeH");
- return; }
+ loader->LoadHits();
+ TTree* treeH = loader->TreeH();
+ if (!treeH) {
+ Error("Exec", "Cannot get TreeH for input %d", iInput);
+ continue;
+ }
+ TClonesArray* hits = vzero->Hits();
- fTreeD = fVZEROLoader->TreeD();
- if (fTreeD == 0x0)
- { fVZEROLoader->MakeTree("D");
- fVZEROLoader->MakeDigitsContainer();
- fTreeD = fVZEROLoader->TreeD(); }
-
- Int_t bufsize = 16000;
- fTreeD->Branch("VZERODigit", &fDigits, bufsize);
-
-// Now make Digits from hits
-
- if (fVZERO)
- {
- fHits = fVZERO->Hits();
+// Now makes Digits from hits
- Int_t ntracks = (Int_t) fTreeH->GetEntries ();
-// printf(" Number of Tracks in the TreeH = %d \n", ntracks);
- for (Int_t track = 0; track < ntracks; track++)
- {
- gAlice->ResetHits ();
- fTreeH->GetEvent(track);
- fParticle = fRunLoader->Stack()->Particle(track);
- Int_t nhits = fHits->GetEntriesFast();
- for (Int_t hit = 0; hit < nhits; hit++)
- {
- fVZEROHit = (AliVZEROhit *)fHits->UncheckedAt(hit);
- N = fVZEROHit->Nphot();
- cell = fVZEROHit->Cell();
- map[cell] = map[cell] + N;
- } // hit loop
- } // track loop
+ Int_t nTracks = (Int_t) treeH->GetEntries();
+ for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
+ vzero->ResetHits();
+ treeH->GetEvent(iTrack);
+ Int_t nHits = hits->GetEntriesFast();
+ for (Int_t iHit = 0; iHit < nHits; iHit++) {
+ AliVZEROhit* hit = (AliVZEROhit *)hits->UncheckedAt(iHit);
+ Int_t nPhot = hit->Nphot();
+ Int_t cell = hit->Cell();
+ map[cell] += nPhot;
+ } // hit loop
+ } // track loop
+
+ loader->UnloadHits();
+
+ } // input loop
- Int_t icount = 0;
-
- for(Int_t i=0; i<96; i++) {
- Float_t q1 = Float_t ( map[i] )* cPM * kQe;
- Float_t noise = gRandom->Gaus(10.5,3.22);
- Float_t PMresponse = q1/kC*TMath::Power(ktheta/kthau,1/(1-ktheta/kthau))
- + noise*1e-3;
- map[i] = Int_t( PMresponse * 200.0);
- if(map[i] > 3) {
- icount++;
-// printf(" Event, cell, adc = %d %d %d\n", ievent, i, map[i]);
- AddDigit(ievent, i, map[i]);}
- }
-
- fTreeD->Reset();
- fTreeD->Fill();
- ResetDigit();
- fVZEROLoader->WriteDigits("OVERWRITE");
- fVZEROLoader->UnloadDigits();
- } // VZERO loop
- } //event loop
+ for (Int_t i=0; i<96; i++) {
+ Float_t q1 = Float_t ( map[i] )* cPM * kQe;
+ Float_t noise = gRandom->Gaus(10.5,3.22);
+ Float_t pmResponse = q1/kC*TMath::Power(ktheta/kthau,1/(1-ktheta/kthau))
+ + noise*1e-3;
+ map[i] = Int_t( pmResponse * 200.0);
+ if(map[i] > 3) {
+// printf(" Event, cell, adc = %d %d %d\n", outRunLoader->GetEventNumber(),i, map[i]);
+ AddDigit(i, map[i]);
+ }
+ }
+
+ treeD->Fill();
+ outLoader->WriteDigits("OVERWRITE");
+ outLoader->UnloadDigits();
+ ResetDigit();
}
//____________________________________________________________________________
-void AliVZERODigitizer::AddDigit(Int_t eventnumber, Int_t cellnumber, Int_t adc)
+void AliVZERODigitizer::AddDigit(Int_t cellnumber, Int_t adc)
{
// Adds Digit
TClonesArray &ldigits = *fDigits;
- new(ldigits[fNdigits++]) AliVZEROdigit(eventnumber,cellnumber,adc);
+ new(ldigits[fNdigits++]) AliVZEROdigit(cellnumber,adc);
}
//____________________________________________________________________________
void AliVZERODigitizer::ResetDigit()
{
+//
// Clears Digits
+//
fNdigits = 0;
- if (fDigits) fDigits->Clear();
+ if (fDigits) fDigits->Delete();
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff