public Ellipse(Circle c)
{
_radius1 = c.R1;
_radius2 = c.R1;
}
public void Func1()
{
Circle c = new Circle(new PointF(3.0f, 0), 5.0f);
ComputeArea(c);
Flatten(c);
Circle c2 = new Circle(new PointF(3.0f, 0), 5.0f);
Flatten(new Ellipse(c2));
Circle c3 = new Circle(new PointF(3.0f, 0), 5.0f);
Ellipse e = new Ellipse(c3);
Flatten(new Ellipse(c3));
}