public void Add(AffineVertex v)
        {
            Vertecies.Add(v);

        }
        private void AddCubeFace(AffineMesh a, string t, AffinePoint A, AffinePoint B, AffinePoint C, AffinePoint D, AffinePoint Offset = null)
        {
            if (Offset == null)
                Offset = new AffinePoint();

            var v1 =
               new AffineVertex
               {
                   A = A + Offset,
                   B = B + Offset,
                   C = C + Offset,

                   Element = new Avalon.Images._17
                   {
                       Width = 100,
                       Height = 100,
                   }.AttachTo(AffineContent),
                   ElementWidth = 100,
                   ElementHeight = 100
               };

            //var t1 = new TextBox { Text = t, Foreground = Brushes.Blue }.AttachTo(InfoContent);

            //v1.Tag = new Action<AffineVertex>(
            //    k =>
            //    {
            //        t1.Text = t + " " + Convert.ToInt32(k.Center.Z);
            //        t1.MoveTo(k.Center.X + DefaultWidth / 2, k.Center.Y + DefaultHeight / 2);

            //    }
            //);

            a.Add(v1);

            var v2 =
                new AffineVertex
                {
                    A = D + Offset,
                    B = C + Offset,
                    C = B + Offset,

                    Element = new Avalon.Images._19g
                    {
                        Width = 100,
                        Height = 100,
                    }.AttachTo(AffineContent),
                    ElementWidth = 100,
                    ElementHeight = 100
                };

            //v2.Element.Opacity = 0.5;

            //var t2 = new TextBox { Text = t }.AttachTo(InfoContent);

            //v2.Tag = new Action<AffineVertex>(
            //    k =>
            //    {
            //        t2.Text = t + " " + Convert.ToInt32(k.Center.Z);
            //        t2.MoveTo(k.Center.X + DefaultWidth / 2, k.Center.Y + DefaultHeight / 2);

            //    }
            //);

            a.Add(v2);

        }