[1199] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: F03ElectroMagneticField.cc,v 1.2 2006/06/29 18:30:05 gunter Exp $ |
---|
| 28 | // GEANT4 tag $Name: HEAD $ |
---|
| 29 | // |
---|
| 30 | // |
---|
| 31 | // User Field class implementation. |
---|
| 32 | // |
---|
| 33 | |
---|
| 34 | |
---|
| 35 | #include "F03ElectroMagneticField.hh" |
---|
| 36 | #include "F03FieldMessenger.hh" |
---|
| 37 | |
---|
| 38 | #include "G4UniformMagField.hh" |
---|
| 39 | #include "G4MagneticField.hh" |
---|
| 40 | #include "G4FieldManager.hh" |
---|
| 41 | #include "G4TransportationManager.hh" |
---|
| 42 | #include "G4Mag_UsualEqRhs.hh" |
---|
| 43 | #include "G4MagIntegratorStepper.hh" |
---|
| 44 | #include "G4ChordFinder.hh" |
---|
| 45 | |
---|
| 46 | #include "G4ExplicitEuler.hh" |
---|
| 47 | #include "G4ImplicitEuler.hh" |
---|
| 48 | #include "G4SimpleRunge.hh" |
---|
| 49 | #include "G4SimpleHeum.hh" |
---|
| 50 | #include "G4ClassicalRK4.hh" |
---|
| 51 | #include "G4HelixExplicitEuler.hh" |
---|
| 52 | #include "G4HelixImplicitEuler.hh" |
---|
| 53 | #include "G4HelixSimpleRunge.hh" |
---|
| 54 | #include "G4CashKarpRKF45.hh" |
---|
| 55 | #include "G4RKG3_Stepper.hh" |
---|
| 56 | |
---|
| 57 | ////////////////////////////////////////////////////////////////////////// |
---|
| 58 | // |
---|
| 59 | // Constructors: |
---|
| 60 | |
---|
| 61 | F03ElectroMagneticField::F03ElectroMagneticField() |
---|
| 62 | : fStepper(NULL),fChordFinder(NULL),fLocalChordFinder(NULL) |
---|
| 63 | { |
---|
| 64 | fMagneticField = new G4UniformMagField( |
---|
| 65 | G4ThreeVector(3.3*tesla, |
---|
| 66 | 0.0, // 0.5*tesla, |
---|
| 67 | 0.0 )); |
---|
| 68 | fLocalMagneticField = new G4UniformMagField( |
---|
| 69 | G4ThreeVector(3.3*tesla, |
---|
| 70 | 0.0, // 0.5*tesla, |
---|
| 71 | 0.0 )); |
---|
| 72 | |
---|
| 73 | // G4FieldManager* fieldMgr = G4TransportationManager::GetTransportationManager() |
---|
| 74 | // ->GetFieldManager(); |
---|
| 75 | // fieldMgr->SetDetectorField(fMagneticField); |
---|
| 76 | // fieldMgr->CreateChordFinder(fMagneticField); |
---|
| 77 | |
---|
| 78 | fFieldMessenger = new F03FieldMessenger(this) ; |
---|
| 79 | |
---|
| 80 | fEquation = new G4Mag_UsualEqRhs(fMagneticField); |
---|
| 81 | fLocalEquation = new G4Mag_UsualEqRhs(fLocalMagneticField); |
---|
| 82 | |
---|
| 83 | fMinStep = 1.0*mm ; // minimal step of 1 mm is default |
---|
| 84 | |
---|
| 85 | fStepperType = 4 ; // ClassicalRK4 is default stepper |
---|
| 86 | |
---|
| 87 | fFieldManager = G4TransportationManager::GetTransportationManager() |
---|
| 88 | ->GetFieldManager(); |
---|
| 89 | |
---|
| 90 | fLocalFieldManager = G4TransportationManager::GetTransportationManager() |
---|
| 91 | ->GetFieldManager(); |
---|
| 92 | |
---|
| 93 | UpdateField(); |
---|
| 94 | |
---|
| 95 | // GetGlobalFieldManager()->CreateChordFinder(this); |
---|
| 96 | } |
---|
| 97 | |
---|
| 98 | ///////////////////////////////////////////////////////////////////////////////// |
---|
| 99 | |
---|
| 100 | F03ElectroMagneticField::F03ElectroMagneticField(G4ThreeVector fieldVector) |
---|
| 101 | { |
---|
| 102 | fMagneticField = new G4UniformMagField(fieldVector); |
---|
| 103 | GetGlobalFieldManager()->CreateChordFinder(this); |
---|
| 104 | } |
---|
| 105 | |
---|
| 106 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 107 | |
---|
| 108 | F03ElectroMagneticField::~F03ElectroMagneticField() |
---|
| 109 | { |
---|
| 110 | // GetGlobalFieldManager()->SetDetectorField(0); |
---|
| 111 | |
---|
| 112 | if(fMagneticField) delete fMagneticField; |
---|
| 113 | if(fChordFinder) delete fChordFinder; |
---|
| 114 | if(fStepper) delete fStepper; |
---|
| 115 | } |
---|
| 116 | |
---|
| 117 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 118 | // |
---|
| 119 | // Update field |
---|
| 120 | // |
---|
| 121 | |
---|
| 122 | void F03ElectroMagneticField::UpdateField() |
---|
| 123 | { |
---|
| 124 | SetStepper(); |
---|
| 125 | G4cout<<"The minimal step is equal to "<<fMinStep/mm<<" mm"<<G4endl ; |
---|
| 126 | |
---|
| 127 | fFieldManager->SetDetectorField(fMagneticField ); |
---|
| 128 | fLocalFieldManager->SetDetectorField(fLocalMagneticField ); |
---|
| 129 | |
---|
| 130 | if(fChordFinder) delete fChordFinder; |
---|
| 131 | if(fLocalChordFinder) delete fLocalChordFinder; |
---|
| 132 | |
---|
| 133 | fChordFinder = new G4ChordFinder( fMagneticField, fMinStep,fStepper); |
---|
| 134 | fLocalChordFinder = new G4ChordFinder( fLocalMagneticField, |
---|
| 135 | fMinStep,fLocalStepper); |
---|
| 136 | |
---|
| 137 | fFieldManager->SetChordFinder( fChordFinder ); |
---|
| 138 | fLocalFieldManager->SetChordFinder( fLocalChordFinder ); |
---|
| 139 | |
---|
| 140 | return; |
---|
| 141 | } |
---|
| 142 | |
---|
| 143 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 144 | // |
---|
| 145 | // Set stepper according to the stepper type |
---|
| 146 | // |
---|
| 147 | |
---|
| 148 | void F03ElectroMagneticField::SetStepper() |
---|
| 149 | { |
---|
| 150 | if(fStepper) delete fStepper; |
---|
| 151 | |
---|
| 152 | switch ( fStepperType ) |
---|
| 153 | { |
---|
| 154 | case 0: |
---|
| 155 | fStepper = new G4ExplicitEuler( fEquation ); |
---|
| 156 | fLocalStepper = new G4ExplicitEuler( fLocalEquation ); |
---|
| 157 | G4cout<<"G4ExplicitEuler is calledS"<<G4endl; |
---|
| 158 | break; |
---|
| 159 | case 1: |
---|
| 160 | fStepper = new G4ImplicitEuler( fEquation ); |
---|
| 161 | fLocalStepper = new G4ImplicitEuler( fLocalEquation ); |
---|
| 162 | G4cout<<"G4ImplicitEuler is called"<<G4endl; |
---|
| 163 | break; |
---|
| 164 | case 2: |
---|
| 165 | fStepper = new G4SimpleRunge( fEquation ); |
---|
| 166 | fLocalStepper = new G4SimpleRunge( fLocalEquation ); |
---|
| 167 | G4cout<<"G4SimpleRunge is called"<<G4endl; |
---|
| 168 | break; |
---|
| 169 | case 3: |
---|
| 170 | fStepper = new G4SimpleHeum( fEquation ); |
---|
| 171 | fLocalStepper = new G4SimpleHeum( fLocalEquation ); |
---|
| 172 | G4cout<<"G4SimpleHeum is called"<<G4endl; |
---|
| 173 | break; |
---|
| 174 | case 4: |
---|
| 175 | fStepper = new G4ClassicalRK4( fEquation ); |
---|
| 176 | fLocalStepper = new G4ClassicalRK4( fLocalEquation ); |
---|
| 177 | G4cout<<"G4ClassicalRK4 (default) is called"<<G4endl; |
---|
| 178 | break; |
---|
| 179 | case 5: |
---|
| 180 | fStepper = new G4HelixExplicitEuler( fEquation ); |
---|
| 181 | fLocalStepper = new G4HelixExplicitEuler( fLocalEquation ); |
---|
| 182 | G4cout<<"G4HelixExplicitEuler is called"<<G4endl; |
---|
| 183 | break; |
---|
| 184 | case 6: |
---|
| 185 | fStepper = new G4HelixImplicitEuler( fEquation ); |
---|
| 186 | fLocalStepper = new G4HelixImplicitEuler( fLocalEquation ); |
---|
| 187 | G4cout<<"G4HelixImplicitEuler is called"<<G4endl; |
---|
| 188 | break; |
---|
| 189 | case 7: |
---|
| 190 | fStepper = new G4HelixSimpleRunge( fEquation ); |
---|
| 191 | fLocalStepper = new G4HelixSimpleRunge( fLocalEquation ); |
---|
| 192 | G4cout<<"G4HelixSimpleRunge is called"<<G4endl; |
---|
| 193 | break; |
---|
| 194 | case 8: |
---|
| 195 | fStepper = new G4CashKarpRKF45( fEquation ); |
---|
| 196 | fLocalStepper = new G4CashKarpRKF45( fLocalEquation ); |
---|
| 197 | G4cout<<"G4CashKarpRKF45 is called"<<G4endl; |
---|
| 198 | break; |
---|
| 199 | case 9: |
---|
| 200 | fStepper = new G4RKG3_Stepper( fEquation ); |
---|
| 201 | fLocalStepper = new G4RKG3_Stepper( fLocalEquation ); |
---|
| 202 | G4cout<<"G4RKG3_Stepper is called"<<G4endl; |
---|
| 203 | break; |
---|
| 204 | default: fStepper = 0; |
---|
| 205 | } |
---|
| 206 | return; |
---|
| 207 | } |
---|
| 208 | |
---|
| 209 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 210 | // |
---|
| 211 | // Set the value of the Global Field to fieldValue along Z |
---|
| 212 | // |
---|
| 213 | |
---|
| 214 | void F03ElectroMagneticField::SetFieldValue(G4double fieldValue) |
---|
| 215 | { |
---|
| 216 | if(fMagneticField) delete fMagneticField; |
---|
| 217 | fMagneticField = new G4UniformMagField(G4ThreeVector(0,0,fieldValue)); |
---|
| 218 | // UpdateField(); |
---|
| 219 | } |
---|
| 220 | |
---|
| 221 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 222 | // |
---|
| 223 | // Set the value of the Global Field |
---|
| 224 | // |
---|
| 225 | |
---|
| 226 | void F03ElectroMagneticField::SetFieldValue(G4ThreeVector fieldVector) |
---|
| 227 | { |
---|
| 228 | // Find the Field Manager for the global field |
---|
| 229 | G4FieldManager* fieldMgr= GetGlobalFieldManager(); |
---|
| 230 | |
---|
| 231 | if(fieldVector != G4ThreeVector(0.,0.,0.)) |
---|
| 232 | { |
---|
| 233 | if(fMagneticField) delete fMagneticField; |
---|
| 234 | fMagneticField = new G4UniformMagField(fieldVector); |
---|
| 235 | |
---|
| 236 | // UpdateField(); |
---|
| 237 | |
---|
| 238 | fieldMgr->SetDetectorField(this); |
---|
| 239 | } |
---|
| 240 | else |
---|
| 241 | { |
---|
| 242 | // If the new field's value is Zero, then it is best to |
---|
| 243 | // insure that it is not used for propagation. |
---|
| 244 | |
---|
| 245 | G4MagneticField* fMagneticField = NULL; |
---|
| 246 | fieldMgr->SetDetectorField(fMagneticField); |
---|
| 247 | } |
---|
| 248 | } |
---|
| 249 | |
---|
| 250 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 251 | // |
---|
| 252 | // Utility method |
---|
| 253 | |
---|
| 254 | G4FieldManager* F03ElectroMagneticField::GetGlobalFieldManager() |
---|
| 255 | { |
---|
| 256 | return G4TransportationManager::GetTransportationManager() |
---|
| 257 | ->GetFieldManager(); |
---|
| 258 | } |
---|
| 259 | |
---|
| 260 | |
---|
| 261 | |
---|
| 262 | |
---|