examplePar01.cc File Reference

Main program of the Par01 example. More...

#include "G4Types.hh"
#include "Par01DetectorConstruction.hh"
#include "Par01ParallelWorldForPion.hh"
#include "FTFP_BERT.hh"
#include "G4FastSimulationPhysics.hh"
#include "G4UImanager.hh"
#include "G4RunManagerFactory.hh"
#include "Par01ActionInitialization.hh"
#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

Go to the source code of this file.

Functions
int	main (int argc, char **argv)

Detailed Description

Main program of the Par01 example.

Definition in file examplePar01.cc.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 68 of file examplePar01.cc.

{
  // Instantiate G4UIExecutive if interactive mode
  G4UIExecutive* ui = nullptr;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }
 
  //-------------------------------
  // Initialization of Run manager
  //-------------------------------
  auto* runManager = G4RunManagerFactory::CreateRunManager();
  runManager->SetNumberOfThreads(4);
 
  // -----------------------------------------------------
  // -- Detector/mass geometry and parallel geometry(ies):
  // -----------------------------------------------------
  // -- Mass geometry (ie : standard geometry):
  auto detector = new Par01DetectorConstruction();
  // -- Parallel geometry for pion parameterisation
  detector->RegisterParallelWorld(new Par01ParallelWorldForPion("pionGhostWorld"));
  // -- Passed to the run manager:
  runManager->SetUserInitialization(detector);
 
  // ----------------------------------------------
  // -- PhysicsList and fast simulation activation:
  // ----------------------------------------------
  // -- Create a physics list (note : FTFP_BERT is a G4VModularPhysicsList
  // -- which allows to use the subsequent G4FastSimulationPhysics tool to
  // -- activate the fast simulation):
  auto  physicsList = new FTFP_BERT;
  // -- Create helper tool, used to activate the fast simulation:
  auto  fastSimulationPhysics = new G4FastSimulationPhysics();
  fastSimulationPhysics->BeVerbose();
  // -- activation of fast simulation for particles having fast simulation models
  // -- attached in the mass geometry:
  fastSimulationPhysics->ActivateFastSimulation("e-");
  fastSimulationPhysics->ActivateFastSimulation("e+");
  fastSimulationPhysics->ActivateFastSimulation("gamma");
  // -- activation of fast simulation for particles having fast simulation models
  // -- attached in the parallel geometry:
  fastSimulationPhysics->ActivateFastSimulation("pi+","pionGhostWorld");
  fastSimulationPhysics->ActivateFastSimulation("pi-","pionGhostWorld");
  // -- Attach the fast simulation physics constructor to the physics list:
  physicsList->RegisterPhysics( fastSimulationPhysics );
  // -- Finally passes the physics list to the run manager:
  runManager->SetUserInitialization(physicsList);
 
  //-------------------------------
  // UserAction classes
  //-------------------------------
  runManager->SetUserInitialization( new Par01ActionInitialization );
 
  // Initialize Run manager
  runManager->Initialize();
 
  //----------------
  // Visualization:
  //----------------
  G4cout << "Instantiating Visualization Manager......." << G4endl;
  G4VisManager* visManager = new G4VisExecutive;
  visManager -> Initialize ();
 
  if(ui)
  {
    //--------------------------
    // Define (G)UI
    //--------------------------
    ui->SessionStart();
    delete ui;
  }
  else
  {
    G4String command = "/control/execute ";
    G4String fileName = argv[1];
    G4UImanager * UImanager = G4UImanager::GetUIpointer();
    UImanager->ApplyCommand(command+fileName);
  }
 
  // 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;
 
  return 0;
}