HepMCEx02/src/H02PrimaryGeneratorAction.cc

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0025 //
0026 /// \file eventgenerator/HepMC/HepMCEx02/src/H02PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the H02PrimaryGeneratorAction class
0028 //
0029 #include "H02PrimaryGeneratorAction.hh"
0030
0031 #include "H02PrimaryGeneratorMessenger.hh"
0032 #include "HepMCG4AsciiReader.hh"
0033 #include "HepMCG4PythiaInterface.hh"
0034
0035 #include "G4Event.hh"
0036 #include "G4ParticleGun.hh"
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039 H02PrimaryGeneratorAction::H02PrimaryGeneratorAction() : G4VUserPrimaryGeneratorAction()
0040 {
0041   // default generator is particle gun.
0042   fCurrentGenerator = fParticleGun = new G4ParticleGun();
0043   fCurrentGeneratorName = "particleGun";
0044   fHepmcAscii = new HepMCG4AsciiReader();
0045 #ifdef G4LIB_USE_PYTHIA
0046   fPythiaGen = new HepMCG4PythiaInterface();
0047 #else
0048   fPythiaGen = 0;
0049 #endif
0050
0051   fGentypeMap["particleGun"] = fParticleGun;
0052   fGentypeMap["hepmcAscii"] = fHepmcAscii;
0053   fGentypeMap["pythia"] = fPythiaGen;
0054
0055   fMessenger = new H02PrimaryGeneratorMessenger(this);
0056 }
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059 H02PrimaryGeneratorAction::~H02PrimaryGeneratorAction()
0060 {
0061   delete fMessenger;
0062 }
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065 void H02PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0066 {
0067   if (fCurrentGenerator)
0068     fCurrentGenerator->GeneratePrimaryVertex(anEvent);
0069   else
0070     G4Exception("H02PrimaryGeneratorAction::GeneratePrimaries", "InvalidSetup", FatalException,
0071                 "Generator is not instanciated.");
0072 }