electromagnetic/TestEm1/TestEm1.cc

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0025 //
0026 /// \file electromagnetic/TestEm1/TestEm1.cc
0027 /// \brief Main program of the electromagnetic/TestEm1 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 G4SteppingVerboseWithUnits
0057   G4int precision = 4;
0058   G4SteppingVerbose::UseBestUnit(precision);
0059
0060   // construct the run manager
0061   auto runManager = G4RunManagerFactory::CreateRunManager();
0062   if (argc == 3) {
0063     G4int nThreads = G4UIcommand::ConvertToInt(argv[2]);
0064     runManager->SetNumberOfThreads(nThreads);
0065   }
0066
0067   // set mandatory initialization classes
0068   DetectorConstruction* det = new DetectorConstruction;
0069   runManager->SetUserInitialization(det);
0070
0071   PhysicsList* phys = new PhysicsList(det);
0072   runManager->SetUserInitialization(phys);
0073
0074   // set user action classes
0075   runManager->SetUserInitialization(new ActionInitialization(det));
0076
0077   // initialize visualization
0078   G4VisManager* visManager = nullptr;
0079
0080   // get the pointer to the User Interface manager
0081   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0082
0083   if (ui) {
0084     // interactive mode
0085     visManager = new G4VisExecutive;
0086     visManager->Initialize();
0087     ui->SessionStart();
0088     delete ui;
0089   }
0090   else {
0091     // batch mode
0092     G4String command = "/control/execute ";
0093     G4String fileName = argv[1];
0094     UImanager->ApplyCommand(command + fileName);
0095   }
0096
0097   // job termination
0098   delete visManager;
0099   delete runManager;
0100 }
0101
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