P01/src/ExP01MagneticField.cc

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0025 //
0026 /// \file ExP01MagneticField.cc
0027 /// \brief Implementation of the ExP01MagneticField class
0028
0029 //   User Field class implementation.
0030 //
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0033
0034 #include "ExP01MagneticField.hh"
0035
0036 #include "G4FieldManager.hh"
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039
0040 ExP01MagneticField::ExP01MagneticField() : G4UniformMagField(G4ThreeVector())
0041 {
0042   GetGlobalFieldManager()->SetDetectorField(this);
0043   GetGlobalFieldManager()->CreateChordFinder(this);
0044 }
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 ExP01MagneticField::ExP01MagneticField(G4ThreeVector fieldVector) : G4UniformMagField(fieldVector)
0049 {
0050   GetGlobalFieldManager()->SetDetectorField(this);
0051   GetGlobalFieldManager()->CreateChordFinder(this);
0052 }
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055
0056 // Set the value of the Global Field to fieldValue along X
0057 //
0058 void ExP01MagneticField::SetFieldValue(G4double fieldValue)
0059 {
0060   G4UniformMagField::SetFieldValue(G4ThreeVector(fieldValue, 0, 0));
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 // Set the value of the Global Field
0066 //
0067 void ExP01MagneticField::SetFieldValue(G4ThreeVector fieldVector)
0068 {
0069   // Find the Field Manager for the global field
0070   G4FieldManager* fieldMgr = GetGlobalFieldManager();
0071
0072   if (fieldVector != G4ThreeVector(0., 0., 0.)) {
0073     G4UniformMagField::SetFieldValue(fieldVector);
0074     fieldMgr->SetDetectorField(this);
0075   }
0076   else {
0077     // If the new field's value is Zero, then it is best to
0078     //  insure that it is not used for propagation.
0079     G4MagneticField* magField = NULL;
0080     fieldMgr->SetDetectorField(magField);
0081   }
0082 }
0083
0084 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0085
0086 ExP01MagneticField::~ExP01MagneticField()
0087 {
0088   // GetGlobalFieldManager()->SetDetectorField(0);
0089 }
0090
0091 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0092
0093 #include "G4TransportationManager.hh"
0094
0095 G4FieldManager* ExP01MagneticField::GetGlobalFieldManager()
0096 {
0097   return G4TransportationManager::GetTransportationManager()->GetFieldManager();
0098 }
0099
0100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......