Radial Area

This sample uses C# 13 preview features such as partial properties, it also uses features from the CommunityToolkit.Mvvm package, you can learn more about it here.

This web site wraps every sample using a UserControl instance, but LiveCharts controls can be used inside any container.

sample image

View model

using LiveChartsCore;

namespace ViewModelsSamples.Polar.RadialArea;

public class ViewModel
{
    public int[] Values1 { get; set; } =
        [7, 5, 7, 5, 6];

    public int[] Values2 { get; set; } =
        [2, 7, 5, 9, 7];

    public string[] Labels { get; set; } =
        ["first", "second", "third", "forth", "fifth"];

    public double TangentAngle { get; set; } =
        LiveCharts.TangentAngle;
}

XAML

<UserControl
    x:Class="AvaloniaSample.Polar.RadialArea.View"
    xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:lvc="using:LiveChartsCore.SkiaSharpView.Avalonia"
    xmlns:vms="using:ViewModelsSamples.Polar.RadialArea"
    xmlns:c="using:LiveChartsCore"
    x:DataType="vms:ViewModel">

    <UserControl.DataContext>
        <vms:ViewModel/>
    </UserControl.DataContext>

    <lvc:PolarChart InitialRotation="-45">

        <lvc:PolarChart.Series>

            <lvc:XamlPolarLineSeries
                Values="{Binding Values1}"
                LineSmoothness="0"
                GeometrySize="0"
                Fill="{lvc:SolidColorPaint Color='#900000ff'}"/>

            <lvc:XamlPolarLineSeries
                Values="{Binding Values2}"
                LineSmoothness="1"
                GeometrySize="0"
                Fill="{lvc:SolidColorPaint Color='#90ff0000'}"/>

        </lvc:PolarChart.Series>

        <lvc:PolarChart.AngleAxes>
            <lvc:XamlPolarAxis
                LabelsRotation="{Binding TangentAngle}"
                Labels="{Binding Labels}"/>
        </lvc:PolarChart.AngleAxes>

    </lvc:PolarChart>

</UserControl>

Articles you might also find useful:

Polar chart control
Polar series properties