exampleGarfield.cc

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// $Id: exampleB4a.cc 86065 2014-11-07 08:51:15Z gcosmo $
//
/// \file exampleB4a.cc
/// \brief Main program of the B4a example
 
#include "G4RunManager.hh"
#include "G4UIExecutive.hh"
#include "G4UIcommand.hh"
#include "G4UImanager.hh"
#include "G4VisExecutive.hh"
#include "GarfieldDetectorConstruction.hh"
#include "GarfieldEventAction.hh"
#include "GarfieldPhysics.hh"
#include "GarfieldPhysicsList.hh"
#include "GarfieldPrimaryGeneratorAction.hh"
#include "GarfieldRunAction.hh"
#include "GarfieldSteppingAction.hh"
#include "Randomize.hh"
 
// Header for Garfield random engine
#include "Garfield/Random.hh"
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namespace {
void PrintUsage() {
  G4cerr << " Usage: " << G4endl;
  G4cerr << " Garfield++ [-m macro ] [-u UIsession]" << G4endl;
}
}  // namespace
 
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int main(int argc, char** argv) {
  // Evaluate arguments
  if (argc > 7) {
    PrintUsage();
    return 1;
  }
 
  G4String macro;
  G4String session;
 
  for (G4int i = 1; i < argc; i = i + 2) {
    if (G4String(argv[i]) == "-m")
      macro = argv[i + 1];
    else if (G4String(argv[i]) == "-u")
      session = argv[i + 1];
    else {
      PrintUsage();
      return 1;
    }
  }
 
  // Detect interactive mode (if no macro provided) and define UI session
  G4UIExecutive* ui = 0;
  if (!macro.size()) {
    ui = new G4UIExecutive(argc, argv);
  }
 
  // Choose the Random engine
  G4Random::setTheEngine(new CLHEP::RanecuEngine);
  G4Random::setTheSeed(1);
  // Choose seed for Garfield random engine
  Garfield::randomEngine.Seed(1);
 
  // Construct the default run manager
  G4RunManager* runManager = new G4RunManager;
 
  GarfieldDetectorConstruction* detConstruction =
      new GarfieldDetectorConstruction();
  runManager->SetUserInitialization(detConstruction);
 
  runManager->SetUserInitialization(new GarfieldPhysicsList());
 
  runManager->SetUserAction(new GarfieldPrimaryGeneratorAction);
  runManager->SetUserAction(new GarfieldRunAction);
  GarfieldEventAction* eventAction = new GarfieldEventAction;
  runManager->SetUserAction(eventAction);
  runManager->SetUserAction(
      new GarfieldSteppingAction(detConstruction, eventAction));
 
  // Initialize visualization
  G4VisManager* visManager = new G4VisExecutive;
  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
  // G4VisManager* visManager = new G4VisExecutive("Quiet");
  visManager->Initialize();
 
  // Get the pointer to the User Interface manager
  G4UImanager* UImanager = G4UImanager::GetUIpointer();
 
  // Process macro or start UI session
  if (macro.size()) {
    // batch mode
    G4String command = "/control/execute ";
    UImanager->ApplyCommand(command + macro);
  } else {
    // interactive mode : define UI session
    UImanager->ApplyCommand("/control/execute init_vis.mac");
    if (ui->IsGUI()) {
      UImanager->ApplyCommand("/control/execute gui.mac");
    }
    ui->SessionStart();
    delete ui;
  }
 
  // Job termination
  // Free the store: user actions, physics_list and detector_description are
  // owned and deleted by the run manager, so they should not be deleted
  // in the main() program !
 
  delete visManager;
  delete runManager;
  GarfieldPhysics::Dispose();
}
 
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