Geant4 Cross Reference

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Geant4/examples/extended/persistency/P01/src/ExP01MagneticField.cc

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 25 //
 26 /// \file persistency/P01/src/ExP01MagneticField.cc
 27 /// \brief Implementation of the ExP01MagneticField class
 28 //
 29 //
 30 //
 31 //   User Field class implementation.
 32 //
 33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 34 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 35 
 36 #include "ExP01MagneticField.hh"
 37 
 38 #include "G4FieldManager.hh"
 39 
 40 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 41 
 42 ExP01MagneticField::ExP01MagneticField() : G4UniformMagField(G4ThreeVector())
 43 {
 44   GetGlobalFieldManager()->SetDetectorField(this);
 45   GetGlobalFieldManager()->CreateChordFinder(this);
 46 }
 47 
 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 49 
 50 ExP01MagneticField::ExP01MagneticField(G4ThreeVector fieldVector) : G4UniformMagField(fieldVector)
 51 {
 52   GetGlobalFieldManager()->SetDetectorField(this);
 53   GetGlobalFieldManager()->CreateChordFinder(this);
 54 }
 55 
 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 57 
 58 // Set the value of the Global Field to fieldValue along X
 59 //
 60 void ExP01MagneticField::SetFieldValue(G4double fieldValue)
 61 {
 62   G4UniformMagField::SetFieldValue(G4ThreeVector(fieldValue, 0, 0));
 63 }
 64 
 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 66 
 67 // Set the value of the Global Field
 68 //
 69 void ExP01MagneticField::SetFieldValue(G4ThreeVector fieldVector)
 70 {
 71   // Find the Field Manager for the global field
 72   G4FieldManager* fieldMgr = GetGlobalFieldManager();
 73 
 74   if (fieldVector != G4ThreeVector(0., 0., 0.)) {
 75     G4UniformMagField::SetFieldValue(fieldVector);
 76     fieldMgr->SetDetectorField(this);
 77   }
 78   else {
 79     // If the new field's value is Zero, then it is best to
 80     //  insure that it is not used for propagation.
 81     G4MagneticField* magField = NULL;
 82     fieldMgr->SetDetectorField(magField);
 83   }
 84 }
 85 
 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 87 
 88 ExP01MagneticField::~ExP01MagneticField()
 89 {
 90   // GetGlobalFieldManager()->SetDetectorField(0);
 91 }
 92 
 93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 94 
 95 #include "G4TransportationManager.hh"
 96 
 97 G4FieldManager* ExP01MagneticField::GetGlobalFieldManager()
 98 {
 99   return G4TransportationManager::GetTransportationManager()->GetFieldManager();
100 }
101 
102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103