clGeometry.cc File Reference

Main program of the g3tog4/clGeometry example. More...

#include "G3toG4DetectorConstruction.hh"
#include "G3toG4ActionInitialization.hh"
#include "G4RunManager.hh"
#include "FTFP_BERT.hh"
#include "G3VolTable.hh"
#include "G4UImanager.hh"
#include "G4ios.hh"
#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

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

Detailed Description

Main program of the g3tog4/clGeometry example.

Definition in file clGeometry.cc.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 68 of file clGeometry.cc.

References in, PrintUsage(), and session.

{
  // Evaluate arguments
  //
  G4cout << "argc " << argc << G4endl;
  if ( argc < 2 || argc > 8 ) {
    PrintUsage();
    return 1;
  }
  
  G4String inFile;
  G4String macro = "";
  G4String session;
#ifdef G4MULTITHREADED
  G4int nofThreads = 4;
#endif

  // First argument is mandatory
  inFile = argv[1];
  G4cout << "Geometry data file: " << inFile << G4endl;
  std::ifstream in(inFile);
  if ( ! in ) {
    G4cerr << "Cannot open input file \"" << inFile << "\"" << G4endl;
    return EXIT_FAILURE;
  }

  // Optional arguments
  for ( G4int i=2; i<argc; i=i+2 ) {
    G4cout << "evaluating " << argv[i] << G4endl;
    if      ( G4String(argv[i]) == "-m" ) macro = argv[i+1];
    else if ( G4String(argv[i]) == "-u" ) session = argv[i+1];
#ifdef G4MULTITHREADED
    else if ( G4String(argv[i]) == "-t" ) {
      nofThreads = G4UIcommand::ConvertToInt(argv[i+1]);
    }
#endif
    else {
      PrintUsage();
      return 1;
    }
  }  
    
  // Detect interactive mode (if no macro provided) and define UI session
  //
  G4UIExecutive* ui = nullptr;
  if ( ! macro.size() ) {
    ui = new G4UIExecutive(argc, argv, session);
  }

  // Construct the default run manager
#ifdef G4MULTITHREADED
  G4MTRunManager* runManager = new G4MTRunManager;
  runManager->SetNumberOfThreads(nofThreads);
#else
  G4RunManager* runManager = new G4RunManager;
#endif
    
  // Set mandatory initialization classes
  //
  // Detector construction
  runManager->SetUserInitialization(new G3toG4DetectorConstruction(inFile));

  // Physics list
  runManager->SetUserInitialization(new FTFP_BERT);
    
  // User action initialization
  runManager->SetUserInitialization(new G3toG4ActionInitialization());
    
  // Initialize visualization
  //
  auto 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
  auto UImanager = G4UImanager::GetUIpointer();

  // Process macro or start UI session
  //
  if ( macro.size() ) {
    // batch mode
    G4String command = "/control/execute ";
    UImanager->ApplyCommand(command+macro);
  }
  else  {  
    // interactive mode : define UI session
    UImanager->ApplyCommand("/control/execute init_vis.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;
}