B4aEventAction.cc

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// $Id$
// 

#include "B4aEventAction.hh"
#include "B4RunAction.hh"
#include "B4Analysis.hh"

#include "G4RunManager.hh"
#include "G4Event.hh"
#include "G4GenericMessenger.hh"
#include "G4UnitsTable.hh"

#include "Randomize.hh"
#include <iomanip>

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B4aEventAction::B4aEventAction()
 : G4UserEventAction(),
   fMessenger(0),
   fEnergyAbs(0.),
   fEnergyGap(0.),
   fTrackLAbs(0.),
   fTrackLGap(0.),
   fPrintModulo(1)
{
  // Define /B4/event commands using generic messenger class
  fMessenger = new G4GenericMessenger(this, "/B4/event/", "Event control");

  // Define /B4/event/setPrintModulo command
  G4GenericMessenger::Command& setPrintModulo 
    = fMessenger->DeclareProperty("setPrintModulo", 
                                  fPrintModulo, 
                                 "Print events modulo n");
  setPrintModulo.SetRange("value>0");                                
}

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B4aEventAction::~B4aEventAction()
{
  delete fMessenger;
}

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void B4aEventAction::BeginOfEventAction(const G4Event* evt)
{  

  G4int eventID = evt->GetEventID();
  if ( eventID % fPrintModulo == 0 )  { 
    G4cout << "\n---> Begin of event: " << eventID << G4endl;
    //CLHEP::HepRandom::showEngineStatus();
  }

  // initialisation per event
  fEnergyAbs = 0.;
  fEnergyGap = 0.;
  fTrackLAbs = 0.;
  fTrackLGap = 0.;
}

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void B4aEventAction::EndOfEventAction(const G4Event* evt)
{
  // Accumulate statistics
  //

  // get analysis manager
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();

  // fill histograms
  analysisManager->FillH1(1, fEnergyAbs);
  analysisManager->FillH1(2, fEnergyGap);
  analysisManager->FillH1(3, fTrackLAbs);
  analysisManager->FillH1(4, fTrackLGap);
  
  // fill ntuple
  analysisManager->FillNtupleDColumn(0, fEnergyAbs);
  analysisManager->FillNtupleDColumn(1, fEnergyGap);
  analysisManager->FillNtupleDColumn(2, fTrackLAbs);
  analysisManager->FillNtupleDColumn(3, fTrackLGap);
  analysisManager->AddNtupleRow();  
  
  // Print per event (modulo n)
  //
  G4int eventID = evt->GetEventID();
  if ( eventID % fPrintModulo == 0) {
    G4cout << "---> End of event: " << eventID << G4endl;     

    G4cout
       << "   Absorber: total energy: " << std::setw(7)
                                        << G4BestUnit(fEnergyAbs,"Energy")
       << "       total track length: " << std::setw(7)
                                        << G4BestUnit(fTrackLAbs,"Length")
       << G4endl
       << "        Gap: total energy: " << std::setw(7)
                                        << G4BestUnit(fEnergyGap,"Energy")
       << "       total track length: " << std::setw(7)
                                        << G4BestUnit(fTrackLGap,"Length")
       << G4endl;
  }
}  

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