electromagnetic/TestEm2/TestEm2.cc

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0025 //
0026 /// \file electromagnetic/TestEm2/TestEm2.cc
0027 /// \brief Main program of the electromagnetic/TestEm2 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 = nullptr;
0052   if (argc == 1) {
0053     ui = new G4UIExecutive(argc, argv);
0054   }
0055
0056   // Use SteppingVerbose with Unit
0057   G4int precision = 4;
0058   G4SteppingVerbose::UseBestUnit(precision);
0059
0060   // Creating run manager
0061   auto runManager = G4RunManagerFactory::CreateRunManager();
0062
0063   if (argc == 3) {
0064     G4int nThreads = G4UIcommand::ConvertToInt(argv[2]);
0065     runManager->SetNumberOfThreads(nThreads);
0066   }
0067
0068   // set mandatory initialization classes
0069   DetectorConstruction* detector = new DetectorConstruction();
0070   runManager->SetUserInitialization(detector);
0071   runManager->SetUserInitialization(new PhysicsList());
0072
0073   // set user actions
0074   runManager->SetUserInitialization(new ActionInitialization(detector));
0075
0076   // initialize visualization
0077   G4VisManager* visManager = nullptr;
0078
0079   // get the pointer to the User Interface manager
0080   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0081
0082   if (ui) {
0083     // interactive mode
0084     visManager = new G4VisExecutive;
0085     visManager->Initialize();
0086     ui->SessionStart();
0087     delete ui;
0088   }
0089   else {
0090     // batch mode
0091     G4String command = "/control/execute ";
0092     G4String fileName = argv[1];
0093     UImanager->ApplyCommand(command + fileName);
0094   }
0095
0096   // job termination
0097   delete visManager;
0098   delete runManager;
0099 }
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