eventgenerator/particleGun/particleGun.cc

0001 //
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0025 //
0026 /// \file eventgenerator/particleGun/particleGun.cc
0027 /// \brief Main program of the eventgenerator/particleGun example
0028 //
0029 //
0030 //
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0033
0034 #include "ActionInitialization.hh"
0035 #include "DetectorConstruction.hh"
0036 #include "PhysicsList.hh"
0037
0038 #include "G4RunManagerFactory.hh"
0039 #include "G4SteppingVerbose.hh"
0040 #include "G4Types.hh"
0041 #include "G4UIExecutive.hh"
0042 #include "G4UImanager.hh"
0043 #include "G4VisExecutive.hh"
0044 #include "Randomize.hh"
0045
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0047
0048 int main(int argc, char** argv)
0049 {
0050   // detect interactive mode (if no arguments) and define UI session
0051   G4UIExecutive* ui = 0;
0052   if (argc == 1) ui = new G4UIExecutive(argc, argv);
0053
0054   // choose the Random engine
0055   CLHEP::HepRandom::setTheEngine(new CLHEP::RanecuEngine);
0056
0057   // use G4SteppingVerboseWithUnits
0058   G4int precision = 4;
0059   G4SteppingVerbose::UseBestUnit(precision);
0060
0061   // construct the run manager
0062   auto runManager = G4RunManagerFactory::CreateRunManager();
0063   if (argc == 3) {
0064     G4int nThreads = G4UIcommand::ConvertToInt(argv[2]);
0065     runManager->SetNumberOfThreads(nThreads);
0066   }
0067   // set mandatory initialization classes
0068   DetectorConstruction* detector = new DetectorConstruction;
0069   runManager->SetUserInitialization(detector);
0070   runManager->SetUserInitialization(new PhysicsList);
0071
0072   runManager->SetUserInitialization(new ActionInitialization);
0073
0074   // initialize visualization
0075   G4VisManager* visManager = nullptr;
0076
0077   // get the pointer to the User Interface manager
0078   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0079
0080   if (ui) {
0081     // interactive mode
0082     visManager = new G4VisExecutive;
0083     visManager->Initialize();
0084     UImanager->ApplyCommand("/control/execute vis.mac");
0085     ui->SessionStart();
0086     delete ui;
0087   }
0088   else {
0089     // batch mode
0090     G4String command = "/control/execute ";
0091     G4String fileName = argv[1];
0092     UImanager->ApplyCommand(command + fileName);
0093   }
0094
0095   // job termination
0096   delete visManager;
0097   delete runManager;
0098 }
0099
0100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....