override public void draw_x(Image b, Viewport vp, bool selected)
{
draw_points(b, vp, selected, Util.eView.x);
}
new static public AObjects create_z(Points p1, Points p2, Viewport vp, bool tmp = false)
{
var d = (int)Math.Sqrt(Math.Pow(p1.Y - p2.Y, 2) + Math.Pow(p1.X - p2.X, 2));
return(new Cylinder(p1, d, tmp));
}