HepMCEx01/src/ExN04PrimaryGeneratorAction.cc

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /// \file ExN04PrimaryGeneratorAction.cc
0027 /// \brief Implementation of the ExN04PrimaryGeneratorAction class
0028
0029 #include "ExN04PrimaryGeneratorAction.hh"
0030
0031 #include "ExN04PrimaryGeneratorMessenger.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 ExN04PrimaryGeneratorAction::ExN04PrimaryGeneratorAction() : G4VUserPrimaryGeneratorAction()
0040 {
0041   // default generator is particle gun.
0042   fCurrentGenerator = fParticleGun = new G4ParticleGun();
0043   fCurrentGeneratorName = "fParticleGun";
0044   fHepmcAscii = new HepMCG4AsciiReader();
0045 #ifdef G4LIB_USE_PYTHIA
0046   fPythiaGen = new HepMCG4PythiaInterface();
0047 #else
0048   fPythiaGen = 0;
0049 #endif
0050   fGentypeMap["particleGun"] = fParticleGun;
0051   fGentypeMap["hepmcAscii"] = fHepmcAscii;
0052   fGentypeMap["pythia"] = fPythiaGen;
0053
0054   fMessenger = new ExN04PrimaryGeneratorMessenger(this);
0055 }
0056
0057 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0058 ExN04PrimaryGeneratorAction::~ExN04PrimaryGeneratorAction()
0059 {
0060   delete fMessenger;
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064 void ExN04PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
0065 {
0066   if (fCurrentGenerator)
0067     fCurrentGenerator->GeneratePrimaryVertex(anEvent);
0068   else
0069     G4Exception("ExN04PrimaryGeneratorAction::GeneratePrimaries", "PrimaryGeneratorAction001",
0070                 FatalException, "generator is not instanciated.");
0071 }