Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/include/G4UniformGravityField.hh

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 25 //
 26 // G4UniformGravifyField
 27 //
 28 // Class description:
 29 //
 30 // Class for creation of Uniform Gravitation Field.
 31 
 32 // Created: P.Gumplinger, 14.06.2011 - Adapted from G4UniformElectricField
 33 //          Thanks to P.Fierlinger (PSI), A.Capra and A.Fontana (INFN Pavia)
 34 // -------------------------------------------------------------------
 35 #ifndef G4UNIFORMGRAVITYFIELD_HH
 36 #define G4UNIFORMGRAVITYFIELD_HH
 37 
 38 #include <CLHEP/Units/PhysicalConstants.h>
 39 
 40 #include "G4Types.hh"
 41 #include "G4ThreeVector.hh"
 42 #include "G4Field.hh"
 43 
 44 class G4UniformGravityField : public G4Field
 45 {
 46   public:
 47 
 48     G4UniformGravityField(const G4ThreeVector& FieldVector );
 49       // A field with value equal to FieldVector.
 50 
 51     G4UniformGravityField(const G4double gy = -9.81*CLHEP::m/CLHEP::s/CLHEP::s);
 52       // Standard Gravitational field on earth's surface
 53 
 54    ~G4UniformGravityField() override;
 55 
 56     G4UniformGravityField(const G4UniformGravityField& p);
 57     G4UniformGravityField& operator=(const G4UniformGravityField& p);
 58       // Copy constructor and assignment operator
 59 
 60     inline G4bool DoesFieldChangeEnergy() const override { return true; }
 61       // Since a gravitational field can change track energy
 62 
 63     void GetFieldValue(const G4double Point[4], G4double* field) const override;
 64     
 65     G4Field* Clone() const override;
 66 
 67   private:
 68 
 69     G4double fFieldComponents[3];
 70 };
 71 
 72 #endif
 73