Slim Gauge

sample image

View model

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

namespace ViewModelsSamples.Pies.Gauge4;

public partial class ViewModel : ObservableObject
{
    public IEnumerable<ISeries> Series { get; set; }
        = new GaugeBuilder()
        .WithLabelsSize(20)
        .WithLabelsPosition(PolarLabelsPosition.End)
        .WithLabelFormatter(point => point.PrimaryValue.ToString())
        .WithInnerRadius(20)
        .WithMaxColumnWidth(5)
        .WithBackground(null)

        .AddValue(50, "Vanessa")
        .AddValue(80, "Charles")
        .AddValue(95, "Ana")

        .BuildSeries();
}

HTML

@page "/Pies/Gauge4"
@using LiveChartsCore.SkiaSharpView.Blazor
@using ViewModelsSamples.Pies.Gauge4

<style>
	.sample-wrap {
		display: inline-block;
		width: 600px;
		height: 600px;
	}
</style>

<div class="sample-wrap">
	<PieChart
		Series="ViewModel.Series"
		InitialRotation="-225"
        MaxAngle="270"
        Total="100">
	</PieChart>
</div>

@code {
	public ViewModel ViewModel { get; set; } = new();
}

Articles you might also find useful:

Pie chart control
pie series properties
Gauges