今天大姚给大家分享一个.NET开源(MIT License)、功能强大、简单、灵活、跨平台的图表、地图和仪表库:LiveCharts2。
LiveCharts2是一个.NET开源、简单、灵活、交互式且功能强大的.NET图表、地图和仪表,现在几乎可以在任何地方运行如:Maui、Uno Platform、Blazor-wasm、WPF、WinForms、Xamarin、Avalonia、WinUI、UWP。
NuGet包管理器中搜索:LiveChartsCore.SkiaSharpView.Blazor 点击安装。
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注意:该包目前仍处于预发行阶段,尚未有正式版,很多同学反馈说找不到,是因为没有勾选:包括预发行版。
using CommunityToolkit.Mvvm.ComponentModel;using LiveChartsCore;using LiveChartsCore.SkiaSharpView;using LiveChartsCore.SkiaSharpView.Painting;using SkiaSharp;namespace ViewModelsSamples.Bars.Basic;public partial class ViewModel : ObservableObject{ public ISeries[] Series { get; set; } = { new ColumnSeries<double> { Name = "Mary", Values = new double[] { 2, 5, 4 } }, new ColumnSeries<double> { Name = "Ana", Values = new double[] { 3, 1, 6 } } }; public Axis[] XAxes { get; set; } = { new Axis { Labels = new string[] { "Category 1", "Category 2", "Category 3" }, LabelsRotation = 0, SeparatorsPaint = new SolidColorPaint(new SKColor(200, 200, 200)), SeparatorsAtCenter = false, TicksPaint = new SolidColorPaint(new SKColor(35, 35, 35)), TicksAtCenter = true, // By default the axis tries to optimize the number of // labels to fit the available space, // when you need to force the axis to show all the labels then you must: ForceStepToMin = true, MinStep = 1 } };}
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@page "/Bars/Basic"@using LiveChartsCore.SkiaSharpView.Blazor@using ViewModelsSamples.Bars.Basic<CartesianChart Series="ViewModel.Series" XAxes="ViewModel.XAxes" LegendPosition="LiveChartsCore.Measure.LegendPosition.Right"></CartesianChart>@code { public ViewModel ViewModel { get; set; } = new();}
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using System;using System.Collections.Generic;using CommunityToolkit.Mvvm.ComponentModel;using LiveChartsCore;using LiveChartsCore.Drawing;using LiveChartsCore.Kernel;using LiveChartsCore.SkiaSharpView;using LiveChartsCore.SkiaSharpView.Drawing.Geometries;namespace ViewModelsSamples.Bars.DelayedAnimation;public partial class ViewModel : ObservableObject{ public ViewModel() { var values1 = new List<float>(); var values2 = new List<float>(); var fx = EasingFunctions.BounceInOut; // this is the function we are going to plot var x = 0f; while (x <= 1) { values1.Add(fx(x)); values2.Add(fx(x - 0.15f)); x += 0.025f; } var columnSeries1 = new ColumnSeries<float> { Values = values1, Stroke = null, Padding = 2 }; var columnSeries2 = new ColumnSeries<float> { Values = values2, Stroke = null, Padding = 2 }; columnSeries1.PointMeasured += OnPointMeasured; columnSeries2.PointMeasured += OnPointMeasured; Series = new List<ISeries> { columnSeries1, columnSeries2 }; } private void OnPointMeasured(ChartPoint<float, RoundedRectangleGeometry, LabelGeometry> point) { var perPointDelay = 100; // milliseconds var delay = point.Context.Entity.MetaData!.EntityIndex * perPointDelay; var speed = (float)point.Context.Chart.AnimationsSpeed.TotalMilliseconds + delay; point.Visual?.SetTransition( new Animation(progress => { var d = delay / speed; return progress <= d ? 0 : EasingFunctions.BuildCustomElasticOut(1.5f, 0.60f)((progress - d) / (1 - d)); }, TimeSpan.FromMilliseconds(speed))); } public List<ISeries> Series { get; set; }}
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@page "/Bars/DelayedAnimation"@using LiveChartsCore.SkiaSharpView.Blazor@using ViewModelsSamples.Bars.DelayedAnimation<CartesianChart Series="ViewModel.Series"></CartesianChart>@code { public ViewModel ViewModel { get; set; } = new();}
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