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 | // $Id: G4FieldManager.cc,v 1.15 2007/12/07 15:34:10 japost Exp $ |
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28 | // GEANT4 tag $Name: HEAD $ |
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29 | // |
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30 | // ------------------------------------------------------------------- |
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31 | |
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32 | #include "G4FieldManager.hh" |
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33 | #include "G4Field.hh" |
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34 | #include "G4MagneticField.hh" |
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35 | #include "G4ChordFinder.hh" |
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36 | #include "G4FieldManagerStore.hh" |
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37 | |
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38 | G4FieldManager::G4FieldManager(G4Field *detectorField, |
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39 | G4ChordFinder *pChordFinder, |
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40 | G4bool fieldChangesEnergy |
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41 | ) |
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42 | : fDetectorField(detectorField), |
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43 | fChordFinder(pChordFinder), |
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44 | fAllocatedChordFinder(false), |
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45 | fDefault_Delta_One_Step_Value(0.01*mm), |
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46 | fDefault_Delta_Intersection_Val(0.001*mm), |
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47 | fEpsilonMinDefault(5.0e-5), |
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48 | fEpsilonMaxDefault(0.001), |
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49 | fEpsilonMin( fEpsilonMinDefault ), |
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50 | fEpsilonMax( fEpsilonMaxDefault) |
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51 | { |
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52 | fDelta_One_Step_Value= fDefault_Delta_One_Step_Value; |
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53 | fDelta_Intersection_Val= fDefault_Delta_Intersection_Val; |
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54 | if ( detectorField ) |
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55 | fFieldChangesEnergy= detectorField->DoesFieldChangeEnergy(); |
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56 | else |
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57 | fFieldChangesEnergy= fieldChangesEnergy; |
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58 | |
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59 | // Add to store |
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60 | G4FieldManagerStore::Register(this); |
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61 | |
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62 | } |
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63 | |
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64 | G4FieldManager::G4FieldManager(G4MagneticField *detectorField) |
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65 | : fDetectorField(detectorField), fAllocatedChordFinder(true), |
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66 | fFieldChangesEnergy(false), |
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67 | fDefault_Delta_One_Step_Value(0.01*mm), |
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68 | fDefault_Delta_Intersection_Val(0.001*mm), |
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69 | fEpsilonMinDefault(5.0e-5), |
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70 | fEpsilonMaxDefault(0.001), |
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71 | fEpsilonMin( fEpsilonMinDefault ), |
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72 | fEpsilonMax( fEpsilonMaxDefault) |
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73 | { |
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74 | fChordFinder= new G4ChordFinder( detectorField ); |
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75 | fDelta_One_Step_Value= fDefault_Delta_One_Step_Value; |
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76 | fDelta_Intersection_Val= fDefault_Delta_Intersection_Val; |
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77 | // Add to store |
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78 | G4FieldManagerStore::Register(this); |
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79 | } |
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80 | |
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81 | void G4FieldManager::ConfigureForTrack( const G4Track * ) |
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82 | { |
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83 | // Default is to do nothing! |
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84 | ; |
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85 | } |
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86 | |
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87 | G4FieldManager::~G4FieldManager() |
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88 | { |
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89 | if( fAllocatedChordFinder ){ |
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90 | delete fChordFinder; |
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91 | } |
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92 | G4FieldManagerStore::DeRegister(this); |
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93 | } |
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94 | |
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95 | void |
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96 | G4FieldManager::CreateChordFinder(G4MagneticField *detectorMagField) |
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97 | { |
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98 | if ( fAllocatedChordFinder ) |
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99 | delete fChordFinder; |
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100 | fChordFinder= new G4ChordFinder( detectorMagField ); |
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101 | fAllocatedChordFinder= true; |
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102 | } |
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103 | |
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104 | G4bool G4FieldManager::SetDetectorField(G4Field *pDetectorField) |
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105 | { |
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106 | fDetectorField= pDetectorField; |
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107 | |
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108 | if ( pDetectorField ) |
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109 | fFieldChangesEnergy= pDetectorField->DoesFieldChangeEnergy(); |
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110 | else |
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111 | fFieldChangesEnergy= false; // No field |
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112 | |
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113 | return false; |
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114 | } |
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115 | |
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