static MagickBooleanType TraceCircle(MVGInfo *mvg_info,const PointInfo start,
  const PointInfo end)
{
  double
    alpha,
    beta,
    radius;

  PointInfo
    offset,
    degrees;

  alpha=end.x-start.x;
  beta=end.y-start.y;
  radius=hypot((double) alpha,(double) beta);
  offset.x=(double) radius;
  offset.y=(double) radius;
  degrees.x=0.0;
  degrees.y=360.0;
  return(TraceEllipse(mvg_info,start,offset,degrees));
}
Unknown