H02PrimaryGeneratorAction.cc

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/// \file eventgenerator/HepMC/HepMCEx02/src/H02PrimaryGeneratorAction.cc
/// \brief Implementation of the H02PrimaryGeneratorAction class
//
#include "G4Event.hh"
#include "G4ParticleGun.hh"
#include "HepMCG4AsciiReader.hh"
#include "HepMCG4PythiaInterface.hh"
#include "H02PrimaryGeneratorAction.hh"
#include "H02PrimaryGeneratorMessenger.hh"
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
H02PrimaryGeneratorAction::H02PrimaryGeneratorAction()
 : G4VUserPrimaryGeneratorAction()
{
  // default generator is particle gun.
  fCurrentGenerator= fParticleGun= new G4ParticleGun();
  fCurrentGeneratorName= "particleGun";
  fHepmcAscii= new HepMCG4AsciiReader();
#ifdef G4LIB_USE_PYTHIA
  fPythiaGen= new HepMCG4PythiaInterface();
#else
  fPythiaGen= 0;
#endif
 
  fGentypeMap["particleGun"]= fParticleGun;
  fGentypeMap["hepmcAscii"]= fHepmcAscii;
  fGentypeMap["pythia"]= fPythiaGen;
 
  fMessenger= new H02PrimaryGeneratorMessenger(this);
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
H02PrimaryGeneratorAction::~H02PrimaryGeneratorAction()
{
  delete fMessenger;
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void H02PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
  if(fCurrentGenerator)
    fCurrentGenerator-> GeneratePrimaryVertex(anEvent);
  else
    G4Exception("H02PrimaryGeneratorAction::GeneratePrimaries",
                "InvalidSetup", FatalException,
                "Generator is not instanciated.");
}