[1199] | 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: F02ElectroMagneticField.hh,v 1.2 2006/06/29 18:27:13 gunter 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 | // A class for control of the Magnetic Field of the detector. |
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| 32 | // The field is assumed to be uniform. |
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| 33 | // |
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| 34 | // $ Id: $ |
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| 35 | |
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| 36 | // Should this be a: |
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| 37 | // i) messenger |
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| 38 | // ii) user class that creates the field ? |
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| 39 | // iii) simply a derived class of Uniform field ? <== I have chosen this now. |
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| 40 | // iv) a field manager that creates/updates field (Prefered?) |
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| 41 | // |
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| 42 | |
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| 43 | |
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| 44 | #ifndef F02ElectroMagneticField_H |
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| 45 | #define F02ElectroMagneticField_H |
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| 46 | |
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| 47 | #include "G4MagneticField.hh" |
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| 48 | // #include "G4ElectroMagneticField.hh" |
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| 49 | #include "G4UniformElectricField.hh" |
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| 50 | |
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| 51 | class G4FieldManager; |
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| 52 | class G4ChordFinder; |
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| 53 | class G4EquationOfMotion; |
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| 54 | class G4Mag_EqRhs; |
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| 55 | class G4EqMagElectricField; |
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| 56 | class G4MagIntegratorStepper; |
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| 57 | class F02FieldMessenger; |
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| 58 | |
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| 59 | class F02ElectroMagneticField : public G4UniformElectricField |
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| 60 | { |
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| 61 | public: |
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| 62 | F02ElectroMagneticField(G4ThreeVector) ; // The value of the field |
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| 63 | F02ElectroMagneticField() ; // A zero field |
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| 64 | |
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| 65 | ~F02ElectroMagneticField() ; |
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| 66 | |
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| 67 | void GetFieldValue( const G4double Point[3], |
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| 68 | G4double Bfield[3] ) const {;} ; |
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| 69 | |
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| 70 | void SetStepperType( G4int i) { fStepperType = i ; } ; |
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| 71 | |
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| 72 | void SetStepper(); |
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| 73 | |
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| 74 | void SetMinStep(G4double s) { fMinStep = s ; } ; |
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| 75 | |
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| 76 | void UpdateField(); |
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| 77 | |
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| 78 | void SetFieldValue(G4ThreeVector fieldVector) ; |
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| 79 | void SetFieldValue(G4double fieldValue) ; |
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| 80 | G4ThreeVector GetConstantFieldValue(); |
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| 81 | |
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| 82 | protected: |
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| 83 | |
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| 84 | // Find the global Field Manager |
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| 85 | |
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| 86 | G4FieldManager* GetGlobalFieldManager() ; // static |
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| 87 | |
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| 88 | G4FieldManager* fFieldManager ; |
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| 89 | |
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| 90 | G4ChordFinder* fChordFinder ; |
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| 91 | |
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| 92 | G4EqMagElectricField* fEquation ; |
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| 93 | |
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| 94 | G4UniformElectricField* fEMfield ; |
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| 95 | |
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| 96 | G4MagIntegratorStepper* fStepper ; |
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| 97 | |
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| 98 | G4int fStepperType ; |
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| 99 | |
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| 100 | G4double fMinStep ; |
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| 101 | |
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| 102 | F02FieldMessenger* fFieldMessenger; |
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| 103 | |
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| 104 | }; |
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| 105 | |
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| 106 | #endif |
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