private void PopularLanguages_Load(object sender, EventArgs e)
        {
            tChart1.Panel.Gradient.Visible = false;

            Steema.TeeChart.Styles.BubbleCloud bCloud = new Steema.TeeChart.Styles.BubbleCloud(tChart1.Chart);

            bCloud.UseColorRange = false;
            bCloud.UsePalette    = true;

            bCloud.Rotation   = 5;
            bCloud.Separation = 51;
            bCloud.SizeRatio  = 1.44;

            bCloud.Add(0, 1175, 30.3, "Python");
            bCloud.Add(0, 1082.5, 22.2, "Java");
            bCloud.Add(0, 1077.5, 13, "C++");
            bCloud.Add(0, 1055, 10.6, "Ruby");
            bCloud.Add(0, 1042.5, 5.2, "JavaScript");
            bCloud.Add(0, 1035, 5, "C#");
            bCloud.Add(0, 1035, 4.1, "C");
            bCloud.Add(0, 1017.5, 3.3, "PHP");
            bCloud.Add(0, 1005, 1.6, "Perl");
            bCloud.Add(0, 975, 1.5, "Go");

            bCloud.Pen.Width = 2;
            bCloud.Pen.Color = Color.DarkGray;

            bCloud.Marks.Font.Color = Color.Black;
        }
        public PopularLanguages()
        {
            this.tChart1 = new Steema.TeeChart.Chart();
            // tChart1
            this.tChart1.Aspect.View3D                      = false;
            this.tChart1.Footer.Alignment                   = TextAlignment.Start;
            this.tChart1.Footer.Font.Brush.Color            = Color.Gray;
            this.tChart1.Header.Font.Brush.Color            = Color.Gray;
            this.tChart1.Header.Font.Size                   = 20;
            this.tChart1.Header.TextAlign                   = TextAlignment.End;
            this.tChart1.Header.Lines                       = new string[] { "Most popular coding languages of 2014" };
            this.tChart1.Legend.Font.Brush.Color            = Color.Gray;
            this.tChart1.Legend.Font.Size                   = 12;
            this.tChart1.Legend.Shadow.Visible              = false;
            this.tChart1.Legend.TextStyle                   = Steema.TeeChart.LegendTextStyles.Plain;
            this.tChart1.Panel.Brush.Color                  = Color.White;
            this.tChart1.Panel.Brush.Gradient.EndColor      = Color.White;
            this.tChart1.Walls.Back.Brush.Gradient.EndColor = Color.White;
            this.tChart1.Walls.Back.Visible                 = false;
            this.tChart1.GetLegendText                     += new Steema.TeeChart.GetLegendTextEventHandler(this.tChart1_GetLegendText);

            tChart1.Panel.Gradient.Visible = false;

            Steema.TeeChart.Styles.BubbleCloud bCloud = new Steema.TeeChart.Styles.BubbleCloud(tChart1.Chart);

            bCloud.UseColorRange = false;
            bCloud.UsePalette    = true;

            bCloud.Rotation   = 5;
            bCloud.Separation = 51;
            bCloud.SizeRatio  = 1.44;

            bCloud.Add(0, 1175, 30.3, "Python");
            bCloud.Add(0, 1082.5, 22.2, "Java");
            bCloud.Add(0, 1077.5, 13, "C++");
            bCloud.Add(0, 1055, 10.6, "Ruby");
            bCloud.Add(0, 1042.5, 5.2, "JavaScript");
            bCloud.Add(0, 1035, 5, "C#");
            bCloud.Add(0, 1035, 4.1, "C");
            bCloud.Add(0, 1017.5, 3.3, "PHP");
            bCloud.Add(0, 1005, 1.6, "Perl");
            bCloud.Add(0, 975, 1.5, "Go");

            bCloud.Pen.Width = 2;
            bCloud.Pen.Color = Color.FromRgb(169, 169, 169);

            bCloud.Marks.Font.Color      = Color.Black;
            this.tChart1.Aspect.ZoomText = true;

            chartView = new ChartView
            {
                VerticalOptions   = LayoutOptions.FillAndExpand,
                HorizontalOptions = LayoutOptions.FillAndExpand,
                WidthRequest      = 25,
                HeightRequest     = 25
            };
            chartView.Model = tChart1;

            Content = new StackLayout
            {
                Children =
                {
                    chartView
                }
            };
        }