数据图表ScottPlot.WPF用法示例

目录

 一、添加 NuGet 程序包（5.0.47）

二、MainWindow.xaml中添加引用 

三、MainWindow.xaml.cs 具体使用代码 

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图表示例：

 一、添加 NuGet 程序包（5.0.47）

二、MainWindow.xaml中添加引用 

<Window x:Class="jssc_analysis2.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"mc:Ignorable="d"xmlns:ScottPlot="clr-namespace:ScottPlot.WPF;assembly=ScottPlot.WPF"Title="数据分析" Width="1280" MinWidth="1280"  Height="725" MinHeight="725" Topmost="False" Background="Gray" WindowStartupLocation="CenterScreen"><Grid x:Name="control_grid"><Grid.ColumnDefinitions><ColumnDefinition></ColumnDefinition></Grid.ColumnDefinitions><ScottPlot:WpfPlot x:Name="wpfPlot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/></Grid>
</Window>

三、MainWindow.xaml.cs 具体使用代码 

private List<DateTime> timeData;
private List<double> priceData;
private Scatter scatterPlot;
private Crosshair crosshair;
private Annotation highlightAnnotation;	//文本提示框private async void Btn_startOnClick(object sender, RoutedEventArgs e)
{timeData = new List<DateTime>();priceData = new List<double>();for (int i = 0; i < pointCount; i++){timeData.Add(startTime.AddMinutes(i * 5)); // 每 5 分钟一个点priceData.Add(Math.Sin(i * 0.1) * 100 + rand.Next(-5, 5)); // 模拟盈亏金额走势}// 转换时间为 double（OADate 格式）double[] xs = timeData.ConvertAll(t => t.ToOADate()).ToArray();double[] ys = priceData.ToArray();// 添加曲线scatterPlot = wpfPlot.Plot.Add.Scatter(xs, ys, ScottPlot.Colors.Red);scatterPlot.LineWidth = 2;scatterPlot.MarkerSize = 4;scatterPlot.MarkerShape = MarkerShape.FilledCircle;crosshair = wpfPlot.Plot.Add.Crosshair(0, 0);crosshair.IsVisible = false;crosshair.MarkerShape = MarkerShape.FilledCircle;crosshair.MarkerSize = 15;// 添加鼠标悬停的文本提示 (Annotation)highlightAnnotation = wpfPlot.Plot.Add.Annotation("");highlightAnnotation.LabelOffsetX = 0;highlightAnnotation.LabelOffsetY = 0;highlightAnnotation.LabelBackgroundColor = ScottPlot.Colors.LightYellow;highlightAnnotation.LabelBorderColor = ScottPlot.Colors.Black;highlightAnnotation.LabelFontSize = 15;highlightAnnotation.IsVisible = false; // 初始时不显示// 配置 X 轴显示时间格式wpfPlot.Plot.Axes.DateTimeTicksBottom();wpfPlot.Refresh();// 绑定鼠标移动事件wpfPlot.MouseMove += WpfPlot_MouseMove;
}private void WpfPlot_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{// 获取鼠标位置（需转换为图表像素坐标）Pixel mousePixel = new Pixel(x: (int)e.GetPosition(wpfPlot).X,y: (int)e.GetPosition(wpfPlot).Y);Coordinates mouseLocation = wpfPlot.Plot.GetCoordinates(mousePixel);DataPoint nearest = scatterPlot.Data.GetNearest(mouseLocation, wpfPlot.Plot.LastRender);// 将十字线置于突出显示的点上if (nearest.IsReal){crosshair.IsVisible = true;crosshair.Position = nearest.Coordinates;highlightAnnotation.Text = $"Index:{nearest.Index}\r\nNumber:{nearest.Y:0.##}\r\nTime:{DateTime.FromOADate(nearest.X)}";highlightAnnotation.IsVisible = true;}// 当未选择任何点时隐藏十字准线if (!nearest.IsReal && crosshair.IsVisible){crosshair.IsVisible = false;highlightAnnotation.Text = $"";highlightAnnotation.IsVisible = false;}wpfPlot.Refresh(); // 刷新图表
}

另：Annotation暂时无法支持中文，有解决办法的话欢迎留言