Geant4  9.6.p02
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electronScattering2.cc
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29 
30 #include "G4RunManager.hh"
31 #include "Randomize.hh"
32 #include "G4ScoringManager.hh"
33 
34 #ifdef G4VIS_USE
35 #include "G4VisExecutive.hh"
36 #endif
37 
38 #include "G4UImanager.hh"
39 #ifdef G4UI_USE
40 #include "G4UIExecutive.hh"
41 #endif
42 
43 #include "ElectronBenchmarkDetector.hh"
44 #include "PhysicsList.hh"
45 #include "ElectronPrimaryGeneratorAction.hh"
46 #include "ElectronRunAction.hh"
47 #include "ElectronEventAction.hh"
48 
49 int main(int argc,char** argv) {
50 
51  // Parse the arguments
52  G4String outputFile = "output.csv";
53  G4String startingSeed = "1";
54  G4String macroFile = "None";
55  if (argc > 1) macroFile = argv[1];
56  if (argc > 2) startingSeed = argv[2];
57  if (argc > 3) outputFile = argv[3];
58  G4cout << "Starting run with" << G4endl;
59  G4cout << "Macro File : " << macroFile << G4endl;
60  G4cout << "Starting Seed : " << startingSeed << G4endl;
61  G4cout << "Output File : " << outputFile << G4endl;
62 
63  // Instantiate the run manager
64  G4RunManager * runManager = new G4RunManager;
65 
66  // Instantiate the random engine
67  CLHEP::HepRandom::setTheEngine(new CLHEP::MTwistEngine);
68 
69  // Convert the starting seed to integer and feed it to the random engine
70  unsigned startingSeedInt;
71  std::istringstream is(startingSeed);
72  is >> startingSeedInt;
73  CLHEP::HepRandom::setTheSeed(startingSeedInt);
74 
75  // Instantiate the scoring manager
76  G4ScoringManager::GetScoringManager();
77 
78  // Instantiate the geometry
79  runManager->SetUserInitialization(new ElectronBenchmarkDetector);
80 
81  // Instantiate the physics list (in turn calls one of four choices of physics list)
82  runManager->SetUserInitialization(new PhysicsList);
83 
84  // Instantiate the primary generator action (in turn uses the G4GeneralParticleSource)
85  runManager->SetUserAction(new ElectronPrimaryGeneratorAction);
86 
87  // Instantiate the run action (in turn instantiates ElectronRun, which accumulates and dumps data)
88  runManager->SetUserAction(new ElectronRunAction(outputFile));
89 
90  // Instantiate the event action (just adds code to periodically report how many events are done)
91  runManager->SetUserAction(new ElectronEventAction);
92 
93  // Instantiate the visualization System
94 #ifdef G4VIS_USE
95  G4VisManager* visManager = new G4VisExecutive;
96  visManager->Initialize();
97 #endif
98 
99  if (argc == 1)
100  {
101  // Since no macro was specified, instantiate an interactive session
102  // (exact session type depends on user preference expressed in environment variables).
103 #ifdef G4UI_USE
104  G4UIExecutive* ui = new G4UIExecutive(argc, argv);
105  ui->SessionStart();
106  delete ui;
107 #endif
108  }
109  else
110  {
111  // A macro was specified. Execute it.
112  G4UImanager* UImanager = G4UImanager::GetUIpointer();
113  G4String command = "/control/execute ";
114  UImanager->ApplyCommand(command+macroFile);
115  }
116 
117 #ifdef G4VIS_USE
118  delete visManager;
119 #endif
120  delete runManager;
121 
122  return 0;
123 }
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