/// <summary> Creates an line using the 2nd LineGeometry constructor. </summary>
        private void CreateLine2()
        {
            var data = new Line3D(new Point3D(), new Point3D(1.0, 2.0, 0.0));
            var line = new LineGeometry(data);

            line.Commit();
        }
        /// <summary> Creates an line using the 3rd LineGeometry constructor. </summary>
        private void CreateLine3()
        {
            var line = new LineGeometry(new Point3D(), new Point3D(3.0, 2.0, 0.0));

            line.Commit();
        }
        /// <summary> Creates an line using the 1st LineGeometry constructor. </summary>
        private void CreateLine1()
        {
            var line = new LineGeometry();

            line.Commit();
        }