Zooming And Panning

Zooming and panning is disabled by default, you can enable it by setting the ZoomMode property, this property is of type LiveChartsCore.Measure.ZoomAndPanMode (enum) and the options are X, Y, Both and None (default), you can learn more about zooming an panning here.

View model

using System;
using CommunityToolkit.Mvvm.ComponentModel;
using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.Lines.Zoom;

[ObservableObject]
public partial class ViewModel
{
    public ViewModel()
    {
        var values = new int[100];
        var r = new Random();
        var t = 0;

        for (var i = 0; i < 100; i++)
        {
            t += r.Next(-90, 100);
            values[i] = t;
        }

        SeriesCollection = new ISeries[] { new LineSeries<int> { Values = values } };
    }

    public ISeries[] SeriesCollection { get; set; }
}

using Eto.Forms;
using LiveChartsCore.SkiaSharpView.Eto;
using ViewModelsSamples.Lines.Zoom;

namespace EtoFormsSample.Lines.Zoom;

public class View : Panel
{
    private readonly CartesianChart cartesianChart;

    public View()
    {
        var viewModel = new ViewModel();

        cartesianChart = new CartesianChart
        {
            Series = viewModel.SeriesCollection,
            TooltipPosition = LiveChartsCore.Measure.TooltipPosition.Hidden,
            ZoomMode = LiveChartsCore.Measure.ZoomAndPanMode.X // mark
        };

        Content = cartesianChart;
    }
}

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