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//
// $Id: EventAction.cc,v 1.3 2006/06/29 16:50:24 gunter Exp $
// GEANT4 tag $Name: geant4-09-03-cand-01 $
//
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#include "EventAction.hh"

#include "EventActionMessenger.hh"
#include "RunAction.hh"
#include "G4Event.hh"
#include "G4TrajectoryContainer.hh"
#include "G4Trajectory.hh"
#include "G4VVisManager.hh"
#include "G4UnitsTable.hh"

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EventAction::EventAction(RunAction* run)
:Run(run),drawFlag("none"),printModulo(10000)
{
  eventMessenger = new EventActionMessenger(this);
}

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EventAction::~EventAction()
{
  delete eventMessenger;
}

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void EventAction::BeginOfEventAction(const G4Event* evt)
{
 G4int evtNb = evt->GetEventID();     
 
 //printing survey
 if (evtNb%printModulo == 0) 
    G4cout << "\n---> Begin of Event: " << evtNb << G4endl;

 //additional initializations 
 Run->initializePerEvent();
}

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void EventAction::EndOfEventAction(const G4Event* evt)
{  
  Run->fillPerEvent();  
    
  if (G4VVisManager::GetConcreteInstance())
    {                         
     G4TrajectoryContainer* trajectoryContainer = evt->GetTrajectoryContainer();
     G4int n_trajectories = 0;
     if (trajectoryContainer) n_trajectories = trajectoryContainer->entries();
     for (G4int i=0; i<n_trajectories; i++) 
        { G4Trajectory* trj = (G4Trajectory *)
	                               ((*(evt->GetTrajectoryContainer()))[i]);
          if (drawFlag == "all") trj->DrawTrajectory(50);
          else if ((drawFlag == "charged")&&(trj->GetCharge() != 0.))
                                  trj->DrawTrajectory(50); 
        }
  }
}

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