Dashed Lines

View model

using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;
using LiveChartsCore.SkiaSharpView.Painting;
using LiveChartsCore.SkiaSharpView.Painting.Effects;
using SkiaSharp;

namespace ViewModelsSamples.Design.StrokeDashArray;

public class ViewModel
{
    public ViewModel()
    {
        // The LiveChartsCore.SkiaSharpView.Painting.EffectsPathEffect abstract class is a wrapper for
        // the SkiaSharp.SKPathEffect object, in this case we will use the DashEffect class
        // to create a dash line as the stroke of our line series

        // notice the stroke thickness affects the stroke dash array
        // if you want to learn more about stroke dash arrays please see:
        // https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/graphics/skiasharp/curves/effects#dots-and-dashes

        var strokeThickness = 10;
        var strokeDashArray = new float[] { 3 * strokeThickness, 2 * strokeThickness };
        var effect = new DashEffect(strokeDashArray);

        Series = new ISeries[]
        {
                new LineSeries<int>
                {
                    Values = new [] { 4, 2, 8, 5, 3 },
                    LineSmoothness = 1,
                    GeometrySize = 22,
                    Stroke = new SolidColorPaint
                    {
                        Color = SKColors.CornflowerBlue,
                        StrokeCap = SKStrokeCap.Round,
                        StrokeThickness = strokeThickness,
                        PathEffect = effect
                    },
                    Fill = null
                }
        };
    }

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

HTML

@page "/Design/StrokeDashArray"
@using LiveChartsCore.SkiaSharpView.Blazor
@using ViewModelsSamples.Design.StrokeDashArray

<CartesianChart
	Series="ViewModel.Series">
</CartesianChart>

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