hadronic/Hadr02/Hadr02.cc

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0025 //
0026 /// \file hadronic/Hadr02/Hadr02.cc
0027 /// \brief Main program of the hadronic/Hadr02 example
0028 //
0029 //
0030 // -------------------------------------------------------------
0031 //      GEANT4 Hadr02
0032 //
0033 //  Application demonstrating Geant4 hadronic cross sections
0034 //
0035 //  Author: V.Ivanchenko 20 June 2008
0036 //
0037 //  Modified:
0038 //
0039 // -------------------------------------------------------------
0040 //
0041 //
0042 #include "CRMC_FTFP_BERT.hh"
0043 #include "DetectorConstruction.hh"
0044 #include "EventAction.hh"
0045 #include "HistoManager.hh"
0046 #include "PrimaryGeneratorAction.hh"
0047 #include "RunAction.hh"
0048 #include "StackingAction.hh"
0049 #include "UrQMD.hh"
0050
0051 #include "G4PhysListFactory.hh"
0052 #include "G4RunManagerFactory.hh"
0053 #include "G4UIExecutive.hh"
0054 #include "G4UImanager.hh"
0055 #include "G4VModularPhysicsList.hh"
0056 #include "G4VisExecutive.hh"
0057 #include "Randomize.hh"
0058
0059 int main(int argc, char** argv)
0060 {
0061   // detect interactive mode (if no arguments) and define UI session
0062   G4UIExecutive* ui = nullptr;
0063   if (argc == 1) ui = new G4UIExecutive(argc, argv);
0064
0065   // choose the Random engine
0066   CLHEP::HepRandom::setTheEngine(new CLHEP::RanecuEngine());
0067
0068   // Construct a serial run manager
0069   auto* runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::SerialOnly);
0070
0071   // set mandatory initialization classes
0072   runManager->SetUserInitialization(new DetectorConstruction());
0073
0074   G4PhysListFactory factory;
0075   G4VModularPhysicsList* phys = 0;
0076
0077   // default Physics List for this example
0078   G4String physName = "QBBC";
0079
0080   // Physics List name defined via 2nd argument
0081   if (argc == 3) {
0082     physName = argv[2];
0083   }
0084   else {
0085     char* path = std::getenv("PHYSLIST");
0086     if (path) {
0087       physName = G4String(path);
0088     }
0089   }
0090   if (physName == "UrQMD") {
0091     phys = new UrQMD;
0092   }
0093   else if (physName == "CRMC_FTFP_BERT") {
0094     phys = new CRMC_FTFP_BERT;
0095   }
0096   else {
0097     phys = factory.GetReferencePhysList(physName);
0098   }
0099
0100   // Physics List is defined via environment variable PHYSLIST
0101   if (!phys) {
0102     G4cout << "Hadr02 FATAL ERROR: Physics List is not defined" << G4endl;
0103     return 1;
0104   }
0105   runManager->SetUserInitialization(phys);
0106   HistoManager::GetPointer()->SetPhysicsList(phys);
0107
0108   runManager->SetUserAction(new PrimaryGeneratorAction());
0109
0110   // set user action classes
0111   runManager->SetUserAction(new RunAction());
0112   runManager->SetUserAction(new EventAction());
0113   runManager->SetUserAction(new StackingAction());
0114
0115   // initialize visualization
0116   G4VisManager* visManager = new G4VisExecutive;
0117   visManager->Initialize();
0118
0119   // get the pointer to the User Interface manager
0120   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0121
0122   if (ui) {
0123     // interactive mode
0124     ui->SessionStart();
0125     delete ui;
0126   }
0127   else {
0128     // batch mode
0129     G4String command = "/control/execute ";
0130     G4String fileName = argv[1];
0131     UImanager->ApplyCommand(command + fileName);
0132   }
0133
0134   // job termination
0135   delete visManager;
0136   delete runManager;
0137 }