LArSoft  v06_85_00
Liquid Argon Software toolkit - http://larsoft.org/
exampleB4a.cc File Reference

Main program of the B4a example. More...

#include "B4DetectorConstruction.hh"
#include "B4aActionInitialization.hh"
#include "G4RunManager.hh"
#include "G4UImanager.hh"
#include "G4UIcommand.hh"
#include "FTFP_BERT.hh"
#include "Randomize.hh"
#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

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Functions

int main (int argc, char **argv)
 

Detailed Description

Main program of the B4a example.

Definition in file exampleB4a.cc.

Function Documentation

int main ( int  argc,
char **  argv 
)

Definition at line 62 of file exampleB4a.cc.

References PrintUsage(), and session.

63 {
64  // Evaluate arguments
65  //
66  if ( argc > 7 ) {
67  PrintUsage();
68  return 1;
69  }
70 
71  G4String macro;
73 #ifdef G4MULTITHREADED
74  G4int nThreads = 0;
75 #endif
76  for ( G4int i=1; i<argc; i=i+2 ) {
77  if ( G4String(argv[i]) == "-m" ) macro = argv[i+1];
78  else if ( G4String(argv[i]) == "-u" ) session = argv[i+1];
79 #ifdef G4MULTITHREADED
80  else if ( G4String(argv[i]) == "-t" ) {
81  nThreads = G4UIcommand::ConvertToInt(argv[i+1]);
82  }
83 #endif
84  else {
85  PrintUsage();
86  return 1;
87  }
88  }
89 
90  // Detect interactive mode (if no macro provided) and define UI session
91  //
92  G4UIExecutive* ui = nullptr;
93  if ( ! macro.size() ) {
94  ui = new G4UIExecutive(argc, argv, session);
95  }
96 
97  // Choose the Random engine
98  //
99  G4Random::setTheEngine(new CLHEP::RanecuEngine);
100 
101  // Construct the default run manager
102  //
103 #ifdef G4MULTITHREADED
104  auto runManager = new G4MTRunManager;
105  if ( nThreads > 0 ) {
106  runManager->SetNumberOfThreads(nThreads);
107  }
108 #else
109  auto runManager = new G4RunManager;
110 #endif
111 
112  // Set mandatory initialization classes
113  //
114  auto detConstruction = new B4DetectorConstruction();
115  runManager->SetUserInitialization(detConstruction);
116 
117  auto physicsList = new FTFP_BERT;
118  runManager->SetUserInitialization(physicsList);
119 
120  auto actionInitialization = new B4aActionInitialization(detConstruction);
121  runManager->SetUserInitialization(actionInitialization);
122 
123  // Initialize visualization
124  //
125  auto visManager = new G4VisExecutive;
126  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
127  // G4VisManager* visManager = new G4VisExecutive("Quiet");
128  visManager->Initialize();
129 
130  // Get the pointer to the User Interface manager
131  auto UImanager = G4UImanager::GetUIpointer();
132 
133  // Process macro or start UI session
134  //
135  if ( macro.size() ) {
136  // batch mode
137  G4String command = "/control/execute ";
138  UImanager->ApplyCommand(command+macro);
139  }
140  else {
141  // interactive mode : define UI session
142  UImanager->ApplyCommand("/control/execute init_vis.mac");
143  if (ui->IsGUI()) {
144  UImanager->ApplyCommand("/control/execute gui.mac");
145  }
146  ui->SessionStart();
147  delete ui;
148  }
149 
150  // Job termination
151  // Free the store: user actions, physics_list and detector_description are
152  // owned and deleted by the run manager, so they should not be deleted
153  // in the main() program !
154 
155  delete visManager;
156  delete runManager;
157 }
static G4UIterminal * session
void PrintUsage()