Gabriele Cosmo
104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: F02ElectroMagneticField.hh,v 1.6 2001/12/04 17:53:53 gcosmo Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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//
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//
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// A class for control of the Magnetic Field of the detector.
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// The field is assumed to be uniform.
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//
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// $ Id: $
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// Should this be a:
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// i) messenger
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// ii) user class that creates the field ?
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// iii) simply a derived class of Uniform field ? <== I have chosen this now.
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// iv) a field manager that creates/updates field (Prefered?)
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//
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#ifndef F02ElectroMagneticField_H
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#define F02ElectroMagneticField_H
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#include "G4MagneticField.hh"
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// #include "G4ElectroMagneticField.hh"
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#include "G4UniformElectricField.hh"
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class G4FieldManager;
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class G4ChordFinder;
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class G4EquationOfMotion;
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class G4Mag_EqRhs;
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class G4EqMagElectricField;
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class G4MagIntegratorStepper;
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class F02FieldMessenger;
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class F02ElectroMagneticField : public G4UniformElectricField
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{
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public:
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F02ElectroMagneticField(G4ThreeVector) ; // The value of the field
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F02ElectroMagneticField() ; // A zero field
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~F02ElectroMagneticField() ;
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void GetFieldValue( const G4double [4], G4double * ) const {;}
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void SetStepperType( G4int i) { fStepperType = i ; }
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void SetStepper();
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void SetMinStep(G4double s) { fMinStep = s ; }
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void UpdateField();
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void SetFieldValue(G4ThreeVector fieldVector);
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void SetFieldValue(G4double fieldValue);
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G4ThreeVector GetConstantFieldValue();
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protected:
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// Find the global Field Manager
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G4FieldManager* GetGlobalFieldManager() ;
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G4FieldManager* fFieldManager ;
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G4ChordFinder* fChordFinder ;
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G4EqMagElectricField* fEquation ;
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G4UniformElectricField* fEMfield ;
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G4MagIntegratorStepper* fStepper ;
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G4int fStepperType ;
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G4double fMinStep ;
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F02FieldMessenger* fFieldMessenger;
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};
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#endif
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