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geant4/examples/extended/gdml/src/PrimaryGeneratorAction.cc
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2016-06-09 15:37:50 +02:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
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// * Neither the authors of this software system, nor their employing *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
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// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
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// * any work based on the software) you agree to acknowledge its *
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// ********************************************************************
//
//
// $Id: PrimaryGeneratorAction.cc,v 1.4 2007/12/05 08:41:18 gcosmo Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
#include "PrimaryGeneratorAction.hh"
PrimaryGeneratorAction::PrimaryGeneratorAction() {
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, 0.1, 0.1));
}
PrimaryGeneratorAction::~PrimaryGeneratorAction()
{
delete particleGun;
}
void PrimaryGeneratorAction::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);
}