[807] | 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 | // |
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| 28 | // |
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| 29 | |
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| 30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 31 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 32 | |
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| 33 | #ifndef F04GlobalField_h |
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| 34 | #define F04GlobalField_h 1 |
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| 35 | |
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| 36 | #include <vector> |
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| 37 | |
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| 38 | #include "G4FieldManager.hh" |
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| 39 | #include "G4PropagatorInField.hh" |
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| 40 | #include "G4MagIntegratorStepper.hh" |
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| 41 | #include "G4ChordFinder.hh" |
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| 42 | |
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| 43 | #include "G4MagneticField.hh" |
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| 44 | #include "G4ElectroMagneticField.hh" |
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| 45 | |
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| 46 | #include "G4Mag_EqRhs.hh" |
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| 47 | #include "G4Mag_SpinEqRhs.hh" |
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| 48 | |
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| 49 | #include "G4EqMagElectricField.hh" |
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| 50 | #include "G4EqEMFieldWithSpin.hh" |
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| 51 | |
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| 52 | #include "F04FieldMessenger.hh" |
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| 53 | #include "F04ElementField.hh" |
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| 54 | |
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| 55 | // F04GlobalField - handles the global ElectroMagnetic field |
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| 56 | // |
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| 57 | // There is a single G04GlobalField object. |
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| 58 | // |
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| 59 | // The field from each individual beamline element is given by a |
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| 60 | // ElementField object. Any number of overlapping ElementField |
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| 61 | // objects can be added to the global field. Any element that |
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| 62 | // represents an element with an EM field must add the appropriate |
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| 63 | // ElementField to the global GlobalField object. |
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| 64 | |
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| 65 | typedef std::vector<F04ElementField*> FieldList; |
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| 66 | |
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| 67 | class F04GlobalField : public G4ElectroMagneticField { |
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| 68 | //class F04GlobalField : public G4MagneticField { |
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| 69 | |
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| 70 | private: |
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| 71 | |
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| 72 | F04GlobalField(); |
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| 73 | F04GlobalField(const F04GlobalField&); |
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| 74 | |
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| 75 | ~F04GlobalField(); |
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| 76 | |
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| 77 | F04GlobalField& operator=(const F04GlobalField&); |
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| 78 | |
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| 79 | void setupArray(); |
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| 80 | |
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| 81 | public: |
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| 82 | |
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| 83 | /// getObject() returns the single F04GlobalField object. |
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| 84 | /// It is constructed, if necessary. |
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| 85 | static F04GlobalField* getObject(); |
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| 86 | |
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| 87 | /// GetFieldValue() returns the field value at a given point[]. |
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| 88 | /// field is really field[6]: Bx,By,Bz,Ex,Ey,Ez. |
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| 89 | /// point[] is in global coordinates: x,y,z,t. |
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| 90 | void GetFieldValue(const G4double* point, G4double* field) const; |
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| 91 | |
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| 92 | /// DoesFieldChangeEnergy() returns true. |
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| 93 | G4bool DoesFieldChangeEnergy() const { return true; } |
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| 94 | |
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| 95 | /// addElementField() adds the ElementField object for a single |
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| 96 | /// element to the global field. |
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| 97 | void addElementField(F04ElementField* f) { if (fields) fields->push_back(f); } |
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| 98 | |
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| 99 | /// clear() removes all ElementField-s from the global object, |
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| 100 | /// and destroys them. Used before the geometry is completely |
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| 101 | /// re-created. |
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| 102 | void clear(); |
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| 103 | |
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| 104 | /// updates all field tracking objects and clear() |
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| 105 | void updateField(); |
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| 106 | |
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| 107 | /// Set the Stepper types |
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| 108 | void SetStepperType( G4int i ) { fStepperType = i; } |
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| 109 | |
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| 110 | /// Set the Stepper |
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| 111 | void SetStepper(); |
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| 112 | |
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| 113 | /// Set the minimum step length |
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| 114 | void SetMinStep(G4double s) { minStep = s; } |
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| 115 | |
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| 116 | /// Set the delta chord length |
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| 117 | void SetDeltaChord(G4double s) { deltaChord = s; } |
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| 118 | |
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| 119 | /// Set the delta one step length |
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| 120 | void SetDeltaOneStep(G4double s) { deltaOneStep = s; } |
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| 121 | |
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| 122 | /// Set the delta intersection length |
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| 123 | void SetDeltaIntersection(G4double s) { deltaIntersection = s; } |
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| 124 | |
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| 125 | /// Set the minimum eps length |
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| 126 | void SetEpsMin(G4double s) { epsMin = s; } |
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| 127 | |
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| 128 | /// Set the maximum eps length |
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| 129 | void SetEpsMax(G4double s) { epsMax = s; } |
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| 130 | |
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| 131 | /// Return the list of Element Fields |
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| 132 | FieldList* getFields() { return fields; } |
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| 133 | |
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| 134 | protected: |
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| 135 | |
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| 136 | /// Get the global field manager |
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| 137 | G4FieldManager* GetGlobalFieldManager(); |
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| 138 | |
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| 139 | private: |
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| 140 | |
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| 141 | static F04GlobalField* object; |
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| 142 | |
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| 143 | G4int nfp; |
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| 144 | G4bool first; |
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| 145 | |
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| 146 | FieldList* fields; |
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| 147 | |
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| 148 | const F04ElementField **fp; |
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| 149 | |
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| 150 | private: |
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| 151 | |
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| 152 | G4int fStepperType; |
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| 153 | |
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| 154 | G4double minStep; |
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| 155 | G4double deltaChord; |
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| 156 | G4double deltaOneStep; |
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| 157 | G4double deltaIntersection; |
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| 158 | G4double epsMin; |
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| 159 | G4double epsMax; |
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| 160 | |
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| 161 | // G4Mag_EqRhs* fEquation; |
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| 162 | // G4Mag_SpinEqRhs* fEquation; |
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| 163 | |
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| 164 | // G4EqMagElectricField* fEquation; |
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| 165 | G4EqEMFieldWithSpin* fEquation; |
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| 166 | |
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| 167 | G4FieldManager* fFieldManager; |
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| 168 | G4PropagatorInField* fFieldPropagator; |
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| 169 | G4MagIntegratorStepper* fStepper; |
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| 170 | G4ChordFinder* fChordFinder; |
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| 171 | |
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| 172 | F04FieldMessenger* fFieldMessenger; |
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| 173 | |
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| 174 | }; |
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| 175 | |
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| 176 | #endif |
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