public override bool PointInObject(ICanvas canvas, UnitPoint point)
{
//RectangleF boundingrect = GetBoundingRect(canvas);
//if (boundingrect.Contains(point.Point) == false)
// return false;
// float thWidth = Line.ThresholdWidth(canvas, Width, ThresholdPixel);
//if (HitUtil.PointInPoint(m_center, point, thWidth))
// return true;
float halfWidth, halfHeight;
GetHalfWidthAndHeight(out halfWidth, out halfHeight);
return(HitUtil.IsPointInOval(m_center, halfWidth, halfHeight, point));
}