Multiple Values Gauge

This web site builds the control from code behind but you could also grab it from the toolbox, this sample also uses a ViewModel to populate the properties of the control(s) in this sample.

sample image

View model

using System.Collections.Generic;
using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;
using CommunityToolkit.Mvvm.ComponentModel;
using LiveChartsCore.SkiaSharpView.Extensions;
using LiveChartsCore.Defaults;
using LiveChartsCore.Measure;

namespace ViewModelsSamples.Pies.Gauge3;

public partial class ViewModel : ObservableObject
{
    public IEnumerable<ISeries> Series { get; set; } =
        GaugeGenerator.BuildSolidGauge(
            new GaugeItem(30, series => SetStyle("Vanessa", series)),
            new GaugeItem(50, series => SetStyle("Charles", series)),
            new GaugeItem(70, series => SetStyle("Ana", series)),
            new GaugeItem(GaugeItem.Background, series =>
            {
                series.InnerRadius = 20;
            }));

    public static void SetStyle(string name, PieSeries<ObservableValue> series)
    {
        series.Name = name;
        series.DataLabelsPosition = PolarLabelsPosition.Start;
        series.DataLabelsFormatter =
                point => $"{point.Coordinate.PrimaryValue} {point.Context.Series.Name}";
        series.InnerRadius = 20;
        series.RelativeOuterRadius = 8;
        series.RelativeInnerRadius = 8;
    }
}

Form code behind

using System.Windows.Forms;
using LiveChartsCore.SkiaSharpView.WinForms;
using ViewModelsSamples.Pies.Gauge3;

namespace WinFormsSample.Pies.Gauge3;

public partial class View : UserControl
{
    private readonly PieChart pieChart;

    public View()
    {
        InitializeComponent();
        Size = new System.Drawing.Size(50, 50);

        var viewModel = new ViewModel();

        pieChart = new PieChart
        {
            Series = viewModel.Series,
            InitialRotation = 45,
            MaxAngle = 270,
            MinValue = 0,
            MaxValue = 100,

            // out of livecharts properties...
            Location = new System.Drawing.Point(0, 0),
            Size = new System.Drawing.Size(50, 50),
            Anchor = AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Top | AnchorStyles.Bottom
        };

        Controls.Add(pieChart);
    }
}

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