Time Span Scale

The [ObservableObject], [ObservableProperty] and [ICommand] attributes come from the CommunityToolkit.Mvvm package, you can read 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 System;
using System.Collections.ObjectModel;
using CommunityToolkit.Mvvm.ComponentModel;
using LiveChartsCore;
using LiveChartsCore.Defaults;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.Axes.TimeSpanScaled;

public partial class ViewModel
    public ISeries[] Series { get; set; } =
        new ColumnSeries<TimeSpanPoint>
            Values = new ObservableCollection<TimeSpanPoint>
                new TimeSpanPoint(TimeSpan.FromMilliseconds(1), 10),
                new TimeSpanPoint(TimeSpan.FromMilliseconds(2), 6),
             // new TimeSpanPoint(TimeSpan.FromMilliseconds(3), 3),
                new TimeSpanPoint(TimeSpan.FromMilliseconds(4), 12),
                new TimeSpanPoint(TimeSpan.FromMilliseconds(5), 8),

    public Axis[] XAxes { get; set; } =
        new Axis
            Labeler = value => TimeSpan.FromTicks((long)value).ToString("fff") + " ms",

            // when using a date time type, let the library know your unit // mark
            UnitWidth = TimeSpan.FromMilliseconds(1).Ticks, //mark

            // if the difference between our points is in hours then we would:
            // UnitWidth = TimeSpan.FromHours(1).Ticks,

            // since all the months and years have a different number of days
            // we can use the average, it would not cause any visible error in the user interface
            // Months: TimeSpan.FromDays(30.4375).Ticks
            // Years: TimeSpan.FromDays(365.25).Ticks

            // The MinStep property forces the separator to be greater than 1 ms.
            MinStep = TimeSpan.FromMilliseconds(1).Ticks, // mark


<UserControl x:Class="AvaloniaSample.Axes.TimeSpanScaled.View"
      Series="{Binding Series}"
      XAxes="{Binding XAxes}">

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