// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4ToroidalSurface.icc,v 1.2 2000/08/28 15:00:35 gcosmo Exp $
// GEANT4 tag $Name: geant4-03-00 $
//
// --------------------------------------------------------------------
// GEANT 4 inline definitions file
//
// G4ToroidalSurface.icc
//
// Implementation of inline methods of G4ToroidalSurface
// --------------------------------------------------------------------

inline
G4String G4ToroidalSurface::GetEntityType() const
{
  return G4String("Toroidal_Surface");
}

inline
G4Vector3D G4ToroidalSurface::GetDirection() const
{
  return Placement.GetRefDirection();
}

inline
G4Vector3D G4ToroidalSurface::GetAxis() const
{
  return Placement.GetAxis();
}

inline
G4Point3D G4ToroidalSurface::GetLocation() const
{
  return Placement.GetLocation();
}

inline
G4double G4ToroidalSurface::GetMinRadius() const
{
  return MinRadius;
}

inline G4double G4ToroidalSurface::GetMaxRadius() const
{
  return MaxRadius;
}

inline
void G4ToroidalSurface::MultiplyPointByMatrix(G4Point3D& Base)
{
  Base.setX((Base.x() * TransMatrix->get(0,0)) + 
	    (Base.y() * TransMatrix->get(1,0)) + 
	    (Base.z() * TransMatrix->get(2,0)));
  Base.setY((Base.x() * TransMatrix->get(0,1)) + 
	    (Base.y() * TransMatrix->get(1,1)) + 
	    (Base.z() * TransMatrix->get(2,1)));
  Base.setZ((Base.x() * TransMatrix->get(0,2)) + 
	    (Base.y() * TransMatrix->get(1,2)) + 
	    (Base.z() * TransMatrix->get(2,2)));
}

inline
void G4ToroidalSurface::MultiplyVectorByMatrix(G4Vector3D& DCos)
{
  G4double w;
  DCos.setX((DCos.x() * TransMatrix->get(0,0)) + 
	    (DCos.y() * TransMatrix->get(1,0)) + 
	    (DCos.z() * TransMatrix->get(2,0)) + TransMatrix->get(3,0));

  DCos.setY((DCos.x() * TransMatrix->get(0,1)) + 
	    (DCos.y() * TransMatrix->get(1,1)) + 
	    (DCos.z() * TransMatrix->get(2,1)) + TransMatrix->get(3,1));

  DCos.setY((DCos.x() * TransMatrix->get(0,2)) + 
	    (DCos.y() * TransMatrix->get(1,2)) + 
	    (DCos.z() * TransMatrix->get(2,2)) + TransMatrix->get(3,2));
  
  w      = ((DCos.x() * TransMatrix->get(0,3)) + 
	    (DCos.y() * TransMatrix->get(1,3)) + 
	    (DCos.z() * TransMatrix->get(2,3)) + TransMatrix->get(3,3));
    
  if (w != 0.0) 
  {
    DCos.setX(DCos.x() / w);  
    DCos.setY(DCos.y() / w); 
    DCos.setZ(DCos.z() / w);
  }
}

inline
G4int G4ToroidalSurface::IsZero(G4double x) const
{
  if((x) > -EQN_EPS && (x) < EQN_EPS) 
    return 1;
  else return 0;
}