Ellipse

 using cAlgo.API;
 namespace cAlgo
 {
     // This sample shows how to draw an ellipse shape on your chart
     [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class EllipseShapeSample : Indicator
     {
         protected override void Initialize()
         {
             var ellipse = new Ellipse
             {
                 HorizontalAlignment = HorizontalAlignment.Center,
                 VerticalAlignment = VerticalAlignment.Center,
                 Margin = 5,
                 Width = 100,
                 Height = 200,
                 StrokeColor = Color.Black,
                 FillColor = Color.Aqua,
                 StrokeThickness = 2,
                 StrokeStartLineCap = PenLineCap.Square,
                 Left = 100,
                 Top = 50
             };
             var canvas = new Canvas
             {
                 BackgroundColor = Color.Gold,
                 Opacity = 0.5
             };
             canvas.AddChild(ellipse);
             Chart.AddControl(canvas);
         }
         public override void Calculate(int index)
         {
         }
     }
 }

 import clr
 clr.AddReference("cAlgo.API")
 from cAlgo.API import *
 class Test():    
     def initialize(self):
         ellipse = Ellipse()
         ellipse.HorizontalAlignment = HorizontalAlignment.Center
         ellipse.VerticalAlignment = VerticalAlignment.Center
         ellipse.Margin = Thickness(5)
         ellipse.Width = 100
         ellipse.Height = 200
         ellipse.StrokeColor = Color.Black
         ellipse.FillColor = Color.Aqua
         ellipse.StrokeThickness = 2
         ellipse.StrokeStartLineCap = PenLineCap.Square
         ellipse.Left = 100
         ellipse.Top = 50
         canvas = Canvas()
         canvas.BackgroundColor = Color.Gold
         canvas.Opacity = 0.5
         canvas.AddChild(ellipse)
         api.Chart.AddControl(canvas)