HepMCEx01/src/ExN04PrimaryGeneratorAction.cc

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0026 /// \file eventgenerator/HepMC/HepMCEx01/src/ExN04PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the ExN04PrimaryGeneratorAction class
0028 //
0029 //
0030
0031 #include "ExN04PrimaryGeneratorAction.hh"
0032
0033 #include "ExN04PrimaryGeneratorMessenger.hh"
0034 #include "HepMCG4AsciiReader.hh"
0035 #include "HepMCG4PythiaInterface.hh"
0036
0037 #include "G4Event.hh"
0038 #include "G4ParticleGun.hh"
0039
0040 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0041 ExN04PrimaryGeneratorAction::ExN04PrimaryGeneratorAction() : G4VUserPrimaryGeneratorAction()
0042 {
0043   // default generator is particle gun.
0044   fCurrentGenerator = fParticleGun = new G4ParticleGun();
0045   fCurrentGeneratorName = "fParticleGun";
0046   fHepmcAscii = new HepMCG4AsciiReader();
0047 #ifdef G4LIB_USE_PYTHIA
0048   fPythiaGen = new HepMCG4PythiaInterface();
0049 #else
0050   fPythiaGen = 0;
0051 #endif
0052   fGentypeMap["particleGun"] = fParticleGun;
0053   fGentypeMap["hepmcAscii"] = fHepmcAscii;
0054   fGentypeMap["pythia"] = fPythiaGen;
0055
0056   fMessenger = new ExN04PrimaryGeneratorMessenger(this);
0057 }
0058
0059 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0060 ExN04PrimaryGeneratorAction::~ExN04PrimaryGeneratorAction()
0061 {
0062   delete fMessenger;
0063 }
0064
0065 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0066 void ExN04PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0067 {
0068   if (fCurrentGenerator)
0069     fCurrentGenerator->GeneratePrimaryVertex(anEvent);
0070   else
0071     G4Exception("ExN04PrimaryGeneratorAction::GeneratePrimaries", "PrimaryGeneratorAction001",
0072                 FatalException, "generator is not instanciated.");
0073 }