HepMCEx01.cc

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//
// ********************************************************************
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//
//
//
// --------------------------------------------------------------
//      GEANT 4 - example derived from novice exampleN04
// --------------------------------------------------------------

#include "G4Types.hh"

#include "FTFP_BERT.hh"
#include "G4RunManager.hh"
#include "G4UImanager.hh"

#include "ExN04DetectorConstruction.hh"
#include "ExN04EventAction.hh"
#include "ExN04PrimaryGeneratorAction.hh"
#include "ExN04RunAction.hh"
#include "ExN04StackingAction.hh"
#include "ExN04SteppingAction.hh"
#include "ExN04SteppingVerbose.hh"
#include "ExN04TrackingAction.hh"

#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

int main(int argc,char** argv)
{
  // Instantiate G4UIExecutive if there are no arguments (interactive mode)
  G4UIExecutive* ui = nullptr;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }

  // User Verbose output class
  //
  G4VSteppingVerbose* verbosity = new ExN04SteppingVerbose;
  G4VSteppingVerbose::SetInstance(verbosity);

  // Run manager
  //
  G4RunManager* runManager = new G4RunManager;

  // User Initialization classes (mandatory)
  //
  G4VUserDetectorConstruction* detector = new ExN04DetectorConstruction;
  runManager->SetUserInitialization(detector);
  //
  G4VUserPhysicsList* physics = new FTFP_BERT;
  runManager->SetUserInitialization(physics);

  runManager->Initialize();

  // User Action classes
  //
  G4VUserPrimaryGeneratorAction* gen_action = new ExN04PrimaryGeneratorAction;
  runManager->SetUserAction(gen_action);
  //
  G4UserRunAction* run_action = new ExN04RunAction;
  runManager->SetUserAction(run_action);
  //
  G4UserEventAction* event_action = new ExN04EventAction;
  runManager->SetUserAction(event_action);
  //
  G4UserStackingAction* stacking_action = new ExN04StackingAction;
  runManager->SetUserAction(stacking_action);
  //
  G4UserTrackingAction* tracking_action = new ExN04TrackingAction;
  runManager->SetUserAction(tracking_action);
  //
  G4UserSteppingAction* stepping_action = new ExN04SteppingAction;
  runManager->SetUserAction(stepping_action);

  G4VisManager* visManager = new G4VisExecutive;
  visManager->Initialize();

  //get the pointer to the User Interface manager
  G4UImanager* UImanager = G4UImanager::GetUIpointer();

  if (!ui)   // batch mode
    {
      visManager->SetVerboseLevel("quiet");
      G4String command = "/control/execute ";
      G4String fileName = argv[1];
      UImanager->ApplyCommand(command+fileName);
    }
  else
    {  // interactive mode : define UI session
      ui->SessionStart();
      delete ui;
    }

  // Free the store: user actions, physics_list and detector_description are
  //                 owned and deleted by the run manager, so they should not
  //                 be deleted in the main() program !

  delete visManager;
  delete runManager;
  delete verbosity;
}