wls.cc

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// ********************************************************************
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//
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#ifndef WIN32
#include <unistd.h>
#endif

#include "G4Types.hh"

#ifdef G4MULTITHREADED
#include "G4MTRunManager.hh"
#else
#include "G4RunManager.hh"
#endif

#include "G4UImanager.hh"

#include "FTFP_BERT.hh"
#include "G4OpticalPhysics.hh"
#include "G4EmStandardPhysics_option4.hh"

#include "WLSDetectorConstruction.hh"

#include "WLSActionInitialization.hh"

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

// argc holds the number of arguments (including the name) on the command line
// -> it is ONE when only the name is  given !!!
// argv[0] is always the name of the program
// argv[1] points to the first argument, and so on

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int main(int argc,char** argv)
{
  // Instantiate G4UIExecutive if interactive mode
  G4UIExecutive* ui = nullptr;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }

#ifdef G4MULTITHREADED
  G4MTRunManager * runManager = new G4MTRunManager;
#else
  G4int seed = 123;
  if (argc  > 2) seed = atoi(argv[argc-1]);

  // Choose the Random engine and set the seed

  G4Random::setTheEngine(new CLHEP::RanecuEngine);
  G4Random::setTheSeed(seed);

  G4RunManager * runManager = new G4RunManager;
#endif

  // Set mandatory initialization classes
  //
  // Detector construction
  WLSDetectorConstruction* detector = new WLSDetectorConstruction();
  runManager->SetUserInitialization(detector);
  // Physics list

  G4VModularPhysicsList* physicsList = new FTFP_BERT;
  physicsList->ReplacePhysics(new G4EmStandardPhysics_option4());
  G4OpticalPhysics* opticalPhysics = new G4OpticalPhysics();
  physicsList->RegisterPhysics(opticalPhysics);
  runManager->SetUserInitialization(physicsList);

  // User action initialization
  runManager->SetUserInitialization(new WLSActionInitialization(detector));

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

  // Get the pointer to the User Interface manager

  G4UImanager * UImanager = G4UImanager::GetUIpointer();

#ifndef WIN32
  G4int optmax = argc;
  if (argc > 2)  { optmax = optmax-1; }

  if (optind < optmax)
  {
     G4String command = "/control/execute ";
     for ( ; optind < optmax; optind++)
     {
         G4String macroFilename = argv[optind];
         UImanager->ApplyCommand(command+macroFilename);
     }
  }
#else  // Simple UI for Windows runs, no possibility of additional arguments
  if (argc!=1)
  {
     G4String command = "/control/execute ";
     G4String fileName = argv[1];
     UImanager->ApplyCommand(command+fileName);
  }
#endif
  else  {
     // Define (G)UI terminal for interactive mode
     UImanager->ApplyCommand("/control/execute init.in");
     if (ui->IsGUI())
        UImanager->ApplyCommand("/control/execute gui.mac");
     ui->SessionStart();
     delete ui;
  }

  // job termination

  delete visManager;
  delete runManager;

  return 0;
}

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