public NiceShapes()
{
circle = new Circle();
circle.GetRadius();
x = 5;
//draw3D = new Triangle();
draw3D = new Circle();
//draw3D = new Canvas();
object obj = circle;
draw3D.DrawIn3D();
}
static void Draw3D(IDraw3D draw3D)
{
draw3D.DrawIn3D();
}