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//
// Implementation of inline methods of G4Trap
// --------------------------------------------------------------------

inline
G4double G4Trap::GetZHalfLength() const
{
  return fDz ;
}

inline
G4ThreeVector G4Trap::GetSymAxis() const
{
  G4double cosTheta = 1.0/std::sqrt(1+fTthetaCphi*fTthetaCphi +
                               fTthetaSphi*fTthetaSphi) ;

  return { fTthetaCphi*cosTheta, fTthetaSphi*cosTheta, cosTheta } ;
}

inline
G4double G4Trap::GetYHalfLength1() const
{
  return fDy1 ;
}

inline
G4double G4Trap::GetXHalfLength1() const
{
  return fDx1 ;
}

inline
G4double G4Trap::GetXHalfLength2() const
{
  return fDx2 ;
}

inline
G4double G4Trap::GetTanAlpha1() const
{
  return fTalpha1 ;
}

inline
G4double G4Trap::GetYHalfLength2() const
{
  return fDy2 ;
}

inline
G4double G4Trap::GetXHalfLength3() const
{
  return fDx3 ;
}

inline
G4double G4Trap::GetXHalfLength4() const
{
  return fDx4 ;
}

inline
G4double G4Trap::GetTanAlpha2() const
{
  return fTalpha2 ;
}

inline
TrapSidePlane G4Trap::GetSidePlane( G4int n ) const
{
  return fPlanes[n] ;
}

inline G4double G4Trap::GetPhi() const       
{
   return std::atan2(fTthetaSphi,fTthetaCphi);
}

inline G4double G4Trap::GetTheta() const
{
   return std::atan(std::sqrt(fTthetaCphi*fTthetaCphi
                              +fTthetaSphi*fTthetaSphi));
}

inline G4double G4Trap::GetAlpha1() const
{
  return std::atan(fTalpha1);
}

inline G4double G4Trap::GetAlpha2() const
{
  return std::atan(fTalpha2);
}