public static void Bezier(this IGeometryFigures _, double x, double y, double s1x, double s1y, double s2x, double s2y, double ex, double ey)
{
_.Bezier(new Point(x, y), new Point(s1x, s1y), new Point(s2x, s2y), new Point(ex, ey));
}
public static void Bezier(this IGeometryFigures _, Point start, Point span1, Point span2, Point end)
{
_.Bezier(new CubicBezier(start, span1, span2, end));
}
public void Bezier(CubicBezier bezier)
{
_figures.Bezier(bezier);
}