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geant4/source/geometry/magneticfield/include/G4EquationOfMotion.icc
2025-12-05 08:54:02 +01:00

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// G4EquationOfMotion inline methods implementation
//
// Author: John Apostolakis (CERN), 1998
// -------------------------------------------------------------------
inline
const G4Field* G4EquationOfMotion::GetFieldObj() const
{
return itsField;
}
inline
G4Field* G4EquationOfMotion::GetFieldObj()
{
return itsField;
}
inline
void G4EquationOfMotion::SetFieldObj(G4Field* pField)
{
itsField = pField;
}
inline
void G4EquationOfMotion::GetFieldValue(const G4double Point[4],
G4double Field[]) const
{
itsField->GetFieldValue(Point, Field);
}
inline
void G4EquationOfMotion::RightHandSide(const G4double y[],
G4double dydx[]) const
{
G4double Field[G4Field::MAX_NUMBER_OF_COMPONENTS];
G4double PositionAndTime[4];
// Position
PositionAndTime[0] = y[0];
PositionAndTime[1] = y[1];
PositionAndTime[2] = y[2];
// Global Time
PositionAndTime[3] = y[7]; // See G4FieldTrack::LoadFromArray
GetFieldValue(PositionAndTime, Field);
EvaluateRhsGivenB(y, Field, dydx);
}
inline
void G4EquationOfMotion::EvaluateRhsReturnB( const G4double y[],
G4double dydx[],
G4double Field[] ) const
{
G4double PositionAndTime[4];
// Position
PositionAndTime[0] = y[0];
PositionAndTime[1] = y[1];
PositionAndTime[2] = y[2];
// Global Time
PositionAndTime[3] = y[7]; // See G4FieldTrack::LoadFromArray
GetFieldValue(PositionAndTime, Field) ;
EvaluateRhsGivenB( y, Field, dydx );
}