B2/B2b/exampleB2b.cc

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0025 //
0026 //
0027 /// \file exampleB2b.cc
0028 /// \brief Main program of the B2b example
0029
0030 #include "ActionInitialization.hh"
0031 #include "DetectorConstruction.hh"
0032 #include "FTFP_BERT.hh"
0033
0034 #include "G4RunManagerFactory.hh"
0035 #include "G4StepLimiterPhysics.hh"
0036 #include "G4SteppingVerbose.hh"
0037 #include "G4UIExecutive.hh"
0038 #include "G4UImanager.hh"
0039 #include "G4VisExecutive.hh"
0040 // #include "Randomize.hh"
0041
0042 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0043
0044 int main(int argc, char** argv)
0045 {
0046   // Detect interactive mode (if no arguments) and define UI session
0047   //
0048   G4UIExecutive* ui = nullptr;
0049   if (argc == 1) {
0050     ui = new G4UIExecutive(argc, argv);
0051   }
0052
0053   // Optionally: choose a different Random engine...
0054   // G4Random::setTheEngine(new CLHEP::MTwistEngine);
0055
0056   // use G4SteppingVerboseWithUnits
0057   G4int precision = 4;
0058   G4SteppingVerbose::UseBestUnit(precision);
0059
0060   // Construct the default run manager
0061   //
0062   auto runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::Default);
0063
0064   // Set mandatory initialization classes
0065   //
0066   runManager->SetUserInitialization(new B2b::DetectorConstruction());
0067
0068   auto physicsList = new FTFP_BERT;
0069   physicsList->RegisterPhysics(new G4StepLimiterPhysics());
0070   runManager->SetUserInitialization(physicsList);
0071
0072   // Set user action classes
0073   runManager->SetUserInitialization(new B2::ActionInitialization());
0074
0075   // Initialize visualization with the default graphics system
0076   auto visManager = new G4VisExecutive(argc, argv);
0077   // Constructors can also take optional arguments:
0078   // - a graphics system of choice, eg. "OGL"
0079   // - and a verbosity argument - see /vis/verbose guidance.
0080   // auto visManager = new G4VisExecutive(argc, argv, "OGL", "Quiet");
0081   // auto visManager = new G4VisExecutive("Quiet");
0082   visManager->Initialize();
0083
0084   // Get the pointer to the User Interface manager
0085   auto UImanager = G4UImanager::GetUIpointer();
0086
0087   // Process macro or start UI session
0088   //
0089   if (!ui) {
0090     // barch mode
0091     G4String command = "/control/execute ";
0092     G4String fileName = argv[1];
0093     UImanager->ApplyCommand(command + fileName);
0094   }
0095   else {
0096     // interactive mode
0097     UImanager->ApplyCommand("/control/execute init_vis.mac");
0098     if (ui->IsGUI()) {
0099       UImanager->ApplyCommand("/control/execute gui.mac");
0100     }
0101     ui->SessionStart();
0102     delete ui;
0103   }
0104
0105   // Job termination
0106   // Free the store: user actions, physics_list and detector_description are
0107   // owned and deleted by the run manager, so they should not be deleted
0108   // in the main() program !
0109
0110   delete visManager;
0111   delete runManager;
0112 }
0113
0114 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....