WPF中的饼图NuGet包

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:lvc="clr-namespace:LiveCharts.Wpf;assembly=LiveCharts.Wpf"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <lvc:PieChart Values="{Binding PieValues}" />
    </Grid>
</Window>

using LiveCharts;
using LiveCharts.Wpf;
using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace WpfApp
{
    public partial class MainWindow : Window, INotifyPropertyChanged
    {
        public ObservableCollection<ChartValues.PieValue> PieValues { get; set; }

        public MainWindow()
        {
            InitializeComponent();
            DataContext = this;
            PieValues = new ObservableCollection<ChartValues.PieValue>
            {
                new ChartValues.PieValue(4) { Label = "Apples" },
                new ChartValues.PieValue(6) { Label = "Bananas" },
                new ChartValues.PieValue(5) { Label = "Oranges" }
            };
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}