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geant4/examples/novice/N01/src/ExN01PrimaryGeneratorAction.cc
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2016-06-09 14:55:03 +02:00

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//
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//
// $Id: ExN01PrimaryGeneratorAction.cc,v 1.6 2006/06/29 17:47:23 gunter Exp $
// GEANT4 tag $Name: geant4-08-02 $
//
#include "ExN01PrimaryGeneratorAction.hh"
#include "G4Event.hh"
#include "G4ParticleGun.hh"
#include "G4ParticleTable.hh"
#include "G4ParticleDefinition.hh"
#include "globals.hh"
ExN01PrimaryGeneratorAction::ExN01PrimaryGeneratorAction()
{
G4int n_particle = 1;
particleGun = new G4ParticleGun(n_particle);
G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
G4String particleName;
particleGun->SetParticleDefinition(particleTable->FindParticle(particleName="geantino"));
particleGun->SetParticleEnergy(1.0*GeV);
particleGun->SetParticlePosition(G4ThreeVector(-2.0*m, 0.0, 0.0));
}
ExN01PrimaryGeneratorAction::~ExN01PrimaryGeneratorAction()
{
delete particleGun;
}
void ExN01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
G4int i = anEvent->GetEventID() % 3;
G4ThreeVector v(1.0,0.0,0.0);
switch(i)
{
case 0:
break;
case 1:
v.setY(0.1);
break;
case 2:
v.setZ(0.1);
break;
}
particleGun->SetParticleMomentumDirection(v);
particleGun->GeneratePrimaryVertex(anEvent);
}