Basic

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.Basic;

public class ViewModel
{
    public double[] Values { get; set; } =
        [15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1];

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

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

XAML

<UserControl
    x:Class="AvaloniaSample.Polar.Basic.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.Basic"
    xmlns:c="using:LiveChartsCore"
    x:DataType="vms:ViewModel">

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

    <lvc:PolarChart>

        <lvc:PolarChart.Title>
            <lvc:XamlDrawnLabelVisual
                Text="My chart title"
                Paint="{lvc:SolidColorPaint Color='#303030'}"
                TextSize="25"
                Padding="{lvc:Padding '15'}"/>
        </lvc:PolarChart.Title>

        <lvc:PolarChart.Series>
            <lvc:XamlPolarLineSeries
                Values="{Binding Values}"
                ShowDataLabels="True"
                GeometrySize="15"
                DataLabelsSize="8"
                DataLabelsPosition="Middle"
                DataLabelsRotation="{x:Static c:LiveCharts.CotangentAngle}"
                IsClosed="True"/>
        </lvc:PolarChart.Series>

        <lvc:PolarChart.RadiusAxes>
            <lvc:XamlPolarAxis
                LabelsAngle="-60"
                MaxLimit="30"/>
        </lvc:PolarChart.RadiusAxes>

        <lvc:PolarChart.AngleAxes>
            <lvc:XamlPolarAxis
                LabelsRotation="{x:Static c:LiveCharts.TangentAngle}"/>
        </lvc:PolarChart.AngleAxes>

    </lvc:PolarChart>

</UserControl>

Articles you might also find useful:

Polar chart control
Polar series properties