Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/include/G4EqGravityField.hh

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  1 //
  2 // ********************************************************************
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 25 //
 26 // G4EqGravityField
 27 //
 28 // Class description:
 29 //
 30 // This is the right-hand side of equation of motion in a gravity field.
 31 
 32 // Created: P.Gumplinger, 14.06.11 - Adopted from G4EqMagElectricField
 33 //          Thanks to P.Fierlinger (PSI) and A.Capra and A.Fontana (INFN Pavia)
 34 // -------------------------------------------------------------------
 35 #ifndef G4EQGRAVITYFIELD_HH
 36 #define G4EQGRAVITYFIELD_HH
 37 
 38 #include "G4ChargeState.hh"
 39 #include "G4EquationOfMotion.hh"
 40 #include "G4UniformGravityField.hh"
 41 
 42 class G4EqGravityField : public G4EquationOfMotion
 43 {
 44   public:
 45 
 46     G4EqGravityField(G4UniformGravityField* gField);
 47    ~G4EqGravityField() override;
 48 
 49     void SetChargeMomentumMass(G4ChargeState particleCharge, // in e+ units
 50                                G4double MomentumXc,
 51                                G4double mass) override;
 52 
 53     void EvaluateRhsGivenB( const G4double y[],
 54                             const G4double Field[],
 55                                   G4double dydx[] ) const override;
 56       // Given the value of the gravitational field, this function
 57       // calculates the value of the derivative dydx.
 58 
 59   private:
 60 
 61     G4double fMass = 0.0;
 62 };
 63 
 64 #endif
 65