| Geant4 Cross Reference |
1 //
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25 //
26 /// \file Par01/examplePar01.cc
27 /// \brief Main program of the Par01 example
28 //
29 //
30 //
31 //
32 // --------------------------------------------------------------
33 // Geant4 - examplePar01
34 // --------------------------------------------------------------
35 // Comments
36 //
37 // Example of a main program making use of parameterisation
38 // i.e. "Fast Simulation"
39 //-------------------------------------------------------------------
40
41 #include "G4Types.hh"
42
43 //---------------
44 // -- Geometries:
45 //---------------
46 #include "Par01DetectorConstruction.hh"
47 #include "Par01ParallelWorldForPion.hh"
48
49 //---------------------------------------------------------------------
50 // -- Physics list, and tool to modify it and activate fast simulation:
51 //---------------------------------------------------------------------
52 #include "FTFP_BERT.hh"
53
54 #include "G4FastSimulationPhysics.hh"
55 #include "G4RunManagerFactory.hh"
56 #include "G4UImanager.hh"
57
58 // ----------------------------------------------------------------
59 // -- Action initialization (includes the primary generator action:
60 // ----------------------------------------------------------------
61 #include "Par01ActionInitialization.hh"
62
63 #include "G4UIExecutive.hh"
64 #include "G4VisExecutive.hh"
65
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67
68 int main(int argc, char** argv)
69 {
70 // Instantiate G4UIExecutive if interactive mode
71 G4UIExecutive* ui = nullptr;
72 if (argc == 1) {
73 ui = new G4UIExecutive(argc, argv);
74 }
75
76 //-------------------------------
77 // Initialization of Run manager
78 //-------------------------------
79 auto* runManager = G4RunManagerFactory::CreateRunManager();
80 runManager->SetNumberOfThreads(4);
81
82 // -----------------------------------------------------
83 // -- Detector/mass geometry and parallel geometry(ies):
84 // -----------------------------------------------------
85 // -- Mass geometry (ie : standard geometry):
86 auto detector = new Par01DetectorConstruction();
87 // -- Parallel geometry for pion parameterisation
88 detector->RegisterParallelWorld(new Par01ParallelWorldForPion("pionGhostWorld"));
89 // -- Passed to the run manager:
90 runManager->SetUserInitialization(detector);
91
92 // ----------------------------------------------
93 // -- PhysicsList and fast simulation activation:
94 // ----------------------------------------------
95 // -- Create a physics list (note : FTFP_BERT is a G4VModularPhysicsList
96 // -- which allows to use the subsequent G4FastSimulationPhysics tool to
97 // -- activate the fast simulation):
98 auto physicsList = new FTFP_BERT;
99 // -- Create helper tool, used to activate the fast simulation:
100 auto fastSimulationPhysics = new G4FastSimulationPhysics();
101 fastSimulationPhysics->BeVerbose();
102 // -- activation of fast simulation for particles having fast simulation models
103 // -- attached in the mass geometry:
104 fastSimulationPhysics->ActivateFastSimulation("e-");
105 fastSimulationPhysics->ActivateFastSimulation("e+");
106 fastSimulationPhysics->ActivateFastSimulation("gamma");
107 // -- activation of fast simulation for particles having fast simulation models
108 // -- attached in the parallel geometry:
109 fastSimulationPhysics->ActivateFastSimulation("pi+", "pionGhostWorld");
110 fastSimulationPhysics->ActivateFastSimulation("pi-", "pionGhostWorld");
111 // -- Attach the fast simulation physics constructor to the physics list:
112 physicsList->RegisterPhysics(fastSimulationPhysics);
113 // -- Finally passes the physics list to the run manager:
114 runManager->SetUserInitialization(physicsList);
115
116 //-------------------------------
117 // UserAction classes
118 //-------------------------------
119 runManager->SetUserInitialization(new Par01ActionInitialization);
120
121 // Initialize Run manager
122 runManager->Initialize();
123
124 //----------------
125 // Visualization:
126 //----------------
127 G4cout << "Instantiating Visualization Manager......." << G4endl;
128 G4VisManager* visManager = new G4VisExecutive;
129 visManager->Initialize();
130
131 if (ui) {
132 //--------------------------
133 // Define (G)UI
134 //--------------------------
135 ui->SessionStart();
136 delete ui;
137 }
138 else {
139 G4String command = "/control/execute ";
140 G4String fileName = argv[1];
141 G4UImanager* UImanager = G4UImanager::GetUIpointer();
142 UImanager->ApplyCommand(command + fileName);
143 }
144
145 // Free the store: user actions, physics_list and detector_description are
146 // owned and deleted by the run manager, so they should not
147 // be deleted in the main() program !
148
149 delete visManager;
150 delete runManager;
151
152 return 0;
153 }
154