B2/B2b/exampleB2b.cc

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