1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | |
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27 | #include "ExErrorMagneticField.hh" |
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28 | #include "G4FieldManager.hh" |
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29 | #include "G4TransportationManager.hh" |
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30 | |
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31 | //------------------------------------------------------------- |
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32 | ExErrorMagneticField::ExErrorMagneticField() |
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33 | : G4UniformMagField(G4ThreeVector()) |
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34 | { |
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35 | GetGlobalFieldManager()->SetDetectorField(this); |
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36 | GetGlobalFieldManager()->CreateChordFinder(this); |
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37 | } |
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38 | |
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39 | |
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40 | //------------------------------------------------------------- |
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41 | ExErrorMagneticField::ExErrorMagneticField(G4ThreeVector fieldVector) |
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42 | : G4UniformMagField(fieldVector) |
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43 | { |
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44 | GetGlobalFieldManager()->SetDetectorField(this); |
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45 | GetGlobalFieldManager()->CreateChordFinder(this); |
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46 | } |
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47 | |
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48 | |
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49 | //------------------------------------------------------------- |
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50 | void ExErrorMagneticField::SetFieldValue(G4double fieldValue) |
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51 | { |
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52 | G4UniformMagField::SetFieldValue(G4ThreeVector(0,0,fieldValue)); |
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53 | |
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54 | } |
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55 | |
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56 | |
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57 | //------------------------------------------------------------- |
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58 | void ExErrorMagneticField::SetFieldValue(G4ThreeVector fieldVector) |
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59 | { |
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60 | // Find the Field Manager for the global field |
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61 | G4FieldManager* fieldMgr= GetGlobalFieldManager(); |
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62 | |
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63 | if(fieldVector!=G4ThreeVector(0.,0.,0.)) |
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64 | { |
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65 | G4UniformMagField::SetFieldValue(fieldVector); |
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66 | fieldMgr->SetDetectorField(this); |
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67 | } else { |
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68 | // If the new field's value is Zero, then it is best to |
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69 | // insure that it is not used for propagation. |
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70 | G4MagneticField* magField = NULL; |
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71 | fieldMgr->SetDetectorField(magField); |
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72 | } |
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73 | } |
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74 | |
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75 | |
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76 | //------------------------------------------------------------- |
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77 | ExErrorMagneticField::~ExErrorMagneticField() |
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78 | { |
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79 | } |
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80 | |
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81 | |
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82 | //------------------------------------------------------------- |
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83 | G4FieldManager* ExErrorMagneticField::GetGlobalFieldManager() |
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84 | { |
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85 | return G4TransportationManager::GetTransportationManager()->GetFieldManager(); |
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86 | } |
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87 | |
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