include/Geant4/G4EquationOfMotion.icc

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0024 // ********************************************************************
0025 //
0026 // G4EquationOfMotion inline methods implementation
0027 //
0028 // Created: J.Apostolakis, 1998
0029 // -------------------------------------------------------------------
0030
0031 inline
0032 const G4Field* G4EquationOfMotion::GetFieldObj() const
0033 {
0034     return itsField;
0035 }
0036
0037 inline
0038 G4Field* G4EquationOfMotion::GetFieldObj()
0039 {
0040     return itsField;
0041 }
0042
0043 inline
0044 void G4EquationOfMotion::SetFieldObj(G4Field* pField)
0045 {
0046     itsField = pField;
0047 }
0048
0049 inline
0050 void G4EquationOfMotion::GetFieldValue(const G4double Point[4],
0051                                              G4double Field[]) const
0052 {
0053     itsField->GetFieldValue(Point, Field);
0054 }
0055
0056 inline
0057 void G4EquationOfMotion::RightHandSide(const G4double y[],
0058                                              G4double dydx[]) const
0059 {
0060     G4double Field[G4Field::MAX_NUMBER_OF_COMPONENTS];
0061     G4double PositionAndTime[4];
0062
0063     // Position
0064     PositionAndTime[0] = y[0];
0065     PositionAndTime[1] = y[1];
0066     PositionAndTime[2] = y[2];
0067     // Global Time
0068     PositionAndTime[3] = y[7];  // See G4FieldTrack::LoadFromArray
0069
0070     GetFieldValue(PositionAndTime, Field);
0071     EvaluateRhsGivenB(y, Field, dydx);
0072 }
0073
0074 inline
0075 void G4EquationOfMotion::EvaluateRhsReturnB( const G4double y[],
0076                                                    G4double dydx[],
0077                                                    G4double Field[] ) const
0078 {
0079      G4double  PositionAndTime[4];
0080
0081      // Position
0082      PositionAndTime[0] = y[0];
0083      PositionAndTime[1] = y[1];
0084      PositionAndTime[2] = y[2];
0085      // Global Time
0086      PositionAndTime[3] = y[7];  // See G4FieldTrack::LoadFromArray
0087
0088      GetFieldValue(PositionAndTime, Field) ;
0089      EvaluateRhsGivenB( y, Field, dydx );
0090 }