Custom

sample image

View model

using System.Collections.Generic;
using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;
using CommunityToolkit.Mvvm.ComponentModel;

namespace ViewModelsSamples.Pies.Custom;

[ObservableObject]
public partial class ViewModel
{
    public ISeries[] Series { get; set; } =
    {
        new PieSeries<double> { Values = new List<double> { 4 }, MaxOuterRadius = 0.60 },
        new PieSeries<double> { Values = new List<double> { 5 }, MaxOuterRadius = 0.65 },
        new PieSeries<double> { Values = new List<double> { 3 }, MaxOuterRadius = 0.70 },
        new PieSeries<double> { Values = new List<double> { 5 }, MaxOuterRadius = 0.85 },
        new PieSeries<double> { Values = new List<double> { 7 }, MaxOuterRadius = 1.00 },
    };
}

using Eto.Forms;
using LiveChartsCore.SkiaSharpView.Eto;
using ViewModelsSamples.Pies.Custom;

namespace EtoFormsSample.Pies.Custom;

public class View : Panel
{
    private readonly PieChart pieChart;

    public View()
    {
        var viewModel = new ViewModel();

        pieChart = new PieChart
        {
            Series = viewModel.Series,
            InitialRotation = -90,
        };

        Content = pieChart;
    }
}

Articles you might also find useful: