The GeoMap chart is experimental and is not as stable as the rest of the charts in the library.

World Heat Map

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

Code behind

using System;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using LiveChartsCore.SkiaSharpView.WinForms;
using LiveChartsCore.Geo;
using LiveChartsCore.SkiaSharpView;
using LiveChartsCore.SkiaSharpView.Drawing.Geometries;

namespace WinFormsSample.Maps.World;

public partial class View : UserControl
{
    public View()
    {
        InitializeComponent();
        Size = new System.Drawing.Size(50, 50);

        var lands = new HeatLand[]
        {
            new() { Name = "bra", Value = 13 },
            new() { Name = "mex", Value = 10 },
            new() { Name = "usa", Value = 15 },
            new() { Name = "can", Value = 8 },
            new() { Name = "ind", Value = 12 },
            new() { Name = "deu", Value = 13 },
            new() { Name= "jpn", Value = 15 },
            new() { Name = "chn", Value = 14 },
            new() { Name = "rus", Value = 11 },
            new() { Name = "fra", Value = 8 },
            new() { Name = "esp", Value = 7 },
            new() { Name = "kor", Value = 10 },
            new() { Name = "zaf", Value = 12 },
            new() { Name = "are", Value = 13 }
        };

        var series = new HeatLandSeries[]
        {
            new() { Lands = lands }
        };

        var chart = new GeoMap
        {
            Series = series,
            MapProjection = MapProjection.Mercator,
            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(chart);

        _ = DoRandomChanges(series[0]);
    }

    private async Task DoRandomChanges(HeatLandSeries series)
    {
        var r = new Random();
        await Task.Delay(1000);
        while (true)
        {
            foreach (var shape in series.Lands ?? Enumerable.Empty<IWeigthedMapLand>())
            {
                shape.Value = r.Next(0, 20);
            }
            await Task.Delay(500);
        }
    }
}

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