ExUCN.cc File Reference

Main program of the exoticphysics/ucn example. More...

#include <unistd.h>
#include "G4Types.hh"
#include "ExUCNPhysicsList.hh"
#include "ExUCNDetectorConstruction.hh"
#include "ExUCNActionInitialization.hh"
#include "G4RunManagerFactory.hh"
#include "G4UImanager.hh"
#include "G4UIcommand.hh"
#include "Randomize.hh"
#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

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

Detailed Description

Main program of the exoticphysics/ucn example.

Definition in file ExUCN.cc.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 70 of file ExUCN.cc.

{
  // Evaluate arguments
  //
  if ( argc > 9 ) {
    PrintUsage();
    return 1;
  }
 
  G4String macro;
  G4String session;
  G4int nThreads = 0;
 
  G4long myseed = 1234;
  for ( G4int i=1; i<argc; i=i+2 ) {
     if      ( G4String(argv[i]) == "-m" ) macro   = argv[i+1];
     else if ( G4String(argv[i]) == "-u" ) session = argv[i+1];
     else if ( G4String(argv[i]) == "-r" ) myseed  = atoi(argv[i+1]);
     else if ( G4String(argv[i]) == "-t" ) {
                    nThreads = G4UIcommand::ConvertToInt(argv[i+1]);
    }
    else {
      PrintUsage();
      return 1;
    }
  }
 
  // Instantiate G4UIExecutive if interactive mode
  G4UIExecutive* ui = nullptr;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }
 
  // Choose the Random engine
  //
  G4Random::setTheEngine(new CLHEP::RanecuEngine);
 
  // Construct the default run manager
  //
  auto* runManager = G4RunManagerFactory::CreateRunManager();
  if ( nThreads > 0 ) runManager->SetNumberOfThreads(nThreads);
 
  // Seed the random number generator manually
  G4Random::setTheSeed(myseed);
 
  // Set mandatory initialization classes
  //
  // Detector construction
  runManager->SetUserInitialization(new ExUCNDetectorConstruction());
  // Physics list
  runManager->SetUserInitialization(new ExUCNPhysicsList());
  // User action initialization
  runManager->SetUserInitialization(new ExUCNActionInitialization());
 
  // Initialize G4 kernel
  //
  runManager->Initialize();
 
  // Initialize visualization
  //
  G4VisManager* visManager = new G4VisExecutive;
  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
  // G4VisManager* visManager = new G4VisExecutive("Quiet");
  visManager->Initialize();
 
  // Get the pointer to the User Interface manager
  //
  G4UImanager* UImanager = G4UImanager::GetUIpointer();
 
  if ( macro.size() ) {
     // batch mode
     G4String command = "/control/execute ";
     UImanager->ApplyCommand(command+macro);
  }
  else
  {  // interactive mode : define UI session
     UImanager->ApplyCommand("/control/execute vis.mac");
     if (ui->IsGUI())
        UImanager->ApplyCommand("/control/execute gui.mac");
     ui->SessionStart();
     delete ui;
  }
 
  // Job termination
  // 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;
}