Geant4 Cross Reference

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Geant4/examples/extended/persistency/gdml/G01/src/G01PrimaryGeneratorAction.cc

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 25 //
 26 /// \file persistency/gdml/G01/src/G01PrimaryGeneratorAction.cc
 27 /// \brief Implementation of the G01PrimaryGeneratorAction class
 28 //
 29 //
 30 //
 31 //
 32 
 33 #include "G01PrimaryGeneratorAction.hh"
 34 
 35 #include "G4Event.hh"
 36 #include "G4ParticleDefinition.hh"
 37 #include "G4ParticleGun.hh"
 38 #include "G4ParticleTable.hh"
 39 #include "G4SystemOfUnits.hh"
 40 
 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 42 
 43 G01PrimaryGeneratorAction::G01PrimaryGeneratorAction()
 44   : G4VUserPrimaryGeneratorAction(), fParticleGun(0)
 45 {
 46   G4int n_particle = 1;
 47   fParticleGun = new G4ParticleGun(n_particle);
 48 
 49   G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
 50   G4String particleName;
 51   fParticleGun->SetParticleDefinition(particleTable->FindParticle(particleName = "geantino"));
 52   fParticleGun->SetParticleEnergy(1.0 * GeV);
 53   fParticleGun->SetParticlePosition(G4ThreeVector(-2.0 * m, 0.1, 0.1));
 54 }
 55 
 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 57 
 58 G01PrimaryGeneratorAction::~G01PrimaryGeneratorAction()
 59 {
 60   delete fParticleGun;
 61 }
 62 
 63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 64 
 65 void G01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
 66 {
 67   G4int i = anEvent->GetEventID() % 3;
 68   G4ThreeVector v(1.0, 0.0, 0.0);
 69   switch (i) {
 70     case 0:
 71       break;
 72     case 1:
 73       v.setY(0.1);
 74       break;
 75     case 2:
 76       v.setZ(0.1);
 77       break;
 78   }
 79   fParticleGun->SetParticleMomentumDirection(v);
 80   fParticleGun->GeneratePrimaryVertex(anEvent);
 81 }
 82