medical/electronScattering/electronScattering.cc

0001 //
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0025 //
0026 /// \file medical/electronScattering/electronScattering.cc
0027 /// \brief Main program of the medical/electronScattering 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) ui = new G4UIExecutive(argc, argv);
0053
0054   // Use SteppingVerbose with Unit
0055   G4int precision = 4;
0056   G4SteppingVerbose::UseBestUnit(precision);
0057
0058   // Creating run manager
0059   auto runManager = G4RunManagerFactory::CreateRunManager();
0060
0061   if (argc == 3) {
0062     G4int nThreads = G4UIcommand::ConvertToInt(argv[2]);
0063     runManager->SetNumberOfThreads(nThreads);
0064   }
0065
0066   // set mandatory initialization classes
0067   DetectorConstruction* detector = new DetectorConstruction;
0068   runManager->SetUserInitialization(detector);
0069
0070   runManager->SetUserInitialization(new PhysicsList());
0071
0072   // set user action classes
0073   runManager->SetUserInitialization(new ActionInitialization(detector));
0074
0075   // initialize visualization
0076   G4VisManager* visManager = nullptr;
0077
0078   // get the pointer to the User Interface manager
0079   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0080
0081   if (nullptr != ui) {
0082     // interactive mode
0083     visManager = new G4VisExecutive;
0084     visManager->Initialize();
0085     ui->SessionStart();
0086     delete ui;
0087     delete visManager;
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 runManager;
0098 }
0099
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