Ellipse Clip

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Media3D;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace lec_vec
{
    /// <summary>
    /// Логика взаимодействия для MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            AddEllipse();
        }
        private void AddEllipse()
        {
            Ellipse ell = new Ellipse();
            ell.Stroke = Brushes.Black;
            ell.Fill = Brushes.DarkBlue;
            ell.Height = 300;
            ell.Width = 300;
            ell.Clip = new RectangleGeometry(new Rect(new Point(0, 0), new Size(100, 300)), 0,0);
            canvas1.Children.Add(ell);
        }
        private void textBox_TextChanged(object sender, TextChangedEventArgs e)
        {

        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {

        }
    }
}