Time Span Scale

sample image

View model

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using LiveChartsCore;
using LiveChartsCore.Defaults;
using LiveChartsCore.Kernel.Sketches;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.Axes.TimeSpanScaled;

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

        XAxes = new List<Axis>
        {
            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
            }
        };
    }

    public IEnumerable<ISeries> Series { get; set; }

    public IEnumerable<ICartesianAxis> XAxes { get; set; }
}

XAML

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="MauiSample.Axes.TimeSpanScaled.View"
             xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:lvc="clr-namespace:LiveChartsCore.SkiaSharpView.Maui;assembly=LiveChartsCore.SkiaSharpView.Maui"
             xmlns:vms="clr-namespace:ViewModelsSamples.Axes.TimeSpanScaled;assembly=ViewModelsSamples">
    <ContentPage.BindingContext>
        <vms:ViewModel/>
    </ContentPage.BindingContext>
    <lvc:CartesianChart
        Series="{Binding Series}"
        YAxes="{Binding YAxes}">
    </lvc:CartesianChart>
</ContentPage>

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