aistudio-wpf-diagram/Others/Live-Charts-master/Examples/WinForms/PieChart/PieChartExample.cs

using System;
using System.Windows.Forms;
using LiveCharts;
using LiveCharts.Wpf;

namespace Winforms.PieChart
{
    public partial class PieChartExample : Form
    {
        public PieChartExample()
        {
            InitializeComponent();

            Func<ChartPoint, string> labelPoint = chartPoint =>
                string.Format("{0} ({1:P})", chartPoint.Y, chartPoint.Participation);

            pieChart1.Series = new SeriesCollection
            {
                new PieSeries
                {
                    Title = "Maria",
                    Values = new ChartValues<double> {3},
                    PushOut = 15,
                    DataLabels = true,
                    LabelPoint = labelPoint
                },
                new PieSeries
                {
                    Title = "Charles",
                    Values = new ChartValues<double> {4},
                    DataLabels = true,
                    LabelPoint = labelPoint
                },
                new PieSeries
                {
                    Title = "Frida",
                    Values = new ChartValues<double> {6},
                    DataLabels = true,
                    LabelPoint = labelPoint
                },
                new PieSeries
                {
                    Title = "Frederic",
                    Values = new ChartValues<double> {2},
                    DataLabels = true,
                    LabelPoint = labelPoint
                }
            };

            pieChart1.LegendLocation = LegendLocation.Bottom;
        }
    }
}