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// $Id: G4Ellipsoid.icc,v 1.7 2006/10/20 13:45:20 gcosmo Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//
//
// --------------------------------------------------------------------
// GEANT 4 inline definitions file
//
// G4Ellipsoid.icc
//
// Implementation of inline methods of G4Ellipsoid
// --------------------------------------------------------------------

inline
G4double G4Ellipsoid::GetSemiAxisMax (G4int i) const
{
  return (i==0) ? xSemiAxis
       : (i==1) ? ySemiAxis
       : zSemiAxis;
}

inline
G4double G4Ellipsoid::GetZBottomCut() const
{
  return zBottomCut;
}

inline
G4double G4Ellipsoid::GetZTopCut() const
{
  return zTopCut;
}

inline
void G4Ellipsoid::SetSemiAxis (G4double newxSemiAxis,
                               G4double newySemiAxis,
                               G4double newzSemiAxis)
{
  xSemiAxis= newxSemiAxis; ySemiAxis= newySemiAxis; zSemiAxis= newzSemiAxis;
  semiAxisMax = xSemiAxis > ySemiAxis ? xSemiAxis : ySemiAxis;
  if (zSemiAxis > semiAxisMax) { semiAxisMax= zSemiAxis; }
  if (zBottomCut < -zSemiAxis) { zBottomCut = -zSemiAxis; }
  if (zTopCut > +zSemiAxis) { zTopCut = +zSemiAxis; }
}

inline
void G4Ellipsoid::SetZCuts (G4double newzBottomCut, G4double newzTopCut)
{
  if (newzBottomCut < -zSemiAxis)
    { zBottomCut = -zSemiAxis; }
  else
    { zBottomCut = newzBottomCut; }

  if (newzTopCut > +zSemiAxis)
    { zTopCut = +zSemiAxis; }
  else
    { zTopCut = newzTopCut; }
}

inline
G4double G4Ellipsoid::GetCubicVolume()
{
  if(fCubicVolume != 0 ) {;}
  else
  {
    if ((zTopCut > +zSemiAxis && zBottomCut < -zSemiAxis)
     || (zTopCut == 0 && zBottomCut == 0) )
    {
      fCubicVolume = (4./3.)*pi*xSemiAxis*ySemiAxis*zSemiAxis;
    }
    else 
    {   
      fCubicVolume = pi*xSemiAxis*ySemiAxis
                   * ((zTopCut-std::pow(zTopCut,3.)/(3.*sqr(zSemiAxis)))
                   - (zBottomCut-std::pow(zBottomCut,3.)/(3.*sqr(zSemiAxis))));
    }
  }
  return fCubicVolume;
}

inline
G4double G4Ellipsoid::GetSurfaceArea()
{
  if(fSurfaceArea != 0.) {;}
  else   { fSurfaceArea = G4VSolid::GetSurfaceArea(); }
  return fSurfaceArea;
}