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ExN02MagneticField.cc
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27 // $Id: ExN02MagneticField.cc 69899 2013-05-17 10:05:33Z gcosmo $
28 //
29 // User Field class implementation.
30 //
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33 
34 #include "ExN02MagneticField.hh"
35 #include "G4FieldManager.hh"
36 #include "G4TransportationManager.hh"
37 
38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
39 
40 ExN02MagneticField::ExN02MagneticField()
41  : G4UniformMagField(G4ThreeVector())
42 {
43  GetGlobalFieldManager()->SetDetectorField(this);
44  GetGlobalFieldManager()->CreateChordFinder(this);
45 }
46 
47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48 
49 ExN02MagneticField::ExN02MagneticField(G4ThreeVector fieldVector)
50  : G4UniformMagField(fieldVector)
51 {
52  GetGlobalFieldManager()->SetDetectorField(this);
53  GetGlobalFieldManager()->CreateChordFinder(this);
54 }
55 
56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 
58 ExN02MagneticField::~ExN02MagneticField()
59 {
60 }
61 
62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
63 
64 // Set the value of the Global Field to fieldValue along X
65 //
66 void ExN02MagneticField::SetMagFieldValue(G4double fieldValue)
67 {
68  SetMagFieldValue(G4ThreeVector(fieldValue,0,0));
69 }
70 
71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
72 
73 // Set the value of the Global Field
74 //
75 void ExN02MagneticField::SetMagFieldValue(G4ThreeVector fieldVector)
76 {
77  // Find the Field Manager for the global field
78  G4FieldManager* fieldMgr= GetGlobalFieldManager();
79 
80  if(fieldVector!=G4ThreeVector(0.,0.,0.))
81  {
82  SetFieldValue(fieldVector);
83  fieldMgr->SetDetectorField(this);
84  } else {
85  // If the new field's value is Zero, then it is best to
86  // insure that it is not used for propagation.
87  G4MagneticField* magField = 0;
88  fieldMgr->SetDetectorField(magField);
89  }
90 }
91 
92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 
94 G4FieldManager* ExN02MagneticField::GetGlobalFieldManager()
95 {
96  return G4TransportationManager::GetTransportationManager()->GetFieldManager();
97 }
98 
99 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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