Arction 图表控件 LightningChart.NET 如何具有鼠标点跟踪和注释的 3D 图表

1.将 View3D 定义为活动视图并定义 Z 轴范围。

// Set View3D as active view and set Z-axis range.chart.ActiveView = ActiveView.View3D;chart.View3D.ZAxisPrimary3D.SetRange(0, 80);

2.创建一个新的 PointLineSeries3D 对象以显示数据。

// Create a new PointLineSeries3D for displaying data and set axis bindings to primary axes.var series = new PointLineSeries3D(chart.View3D, Axis3DBinding.Primary, Axis3DBinding.Primary, Axis3DBinding.Primary){// Set this to true to set a color for individual points.IndividualPointColors = true,// Set this to true in order for mouse tracking to work.MouseInteraction = true};

3.将样式应用于新创建的系列。

// Set a title to the series.series.Title.Text = "Series 0";

// Set point shape to a sphere.series.PointStyle.Shape3D = PointShape3D.Sphere;

// Set individual point size.series.PointStyle.Size3D.SetValues(3, 3, 3);

// Set the width of the line between points.series.LineStyle.Width = 0.4f;

// Draw the line between points with the same color as the points.series.LineStyle.LineOptimization = LineOptimization.NormalWithShading;

// Set a color to the line.series.LineStyle.Color = Color.FromArgb(255, 255, 0, 0);

4.为数据点创建 SeriesPoint3D 数组并添加数据。

// Create a SeriesPoint3D array for data points.SeriesPoint3D[] points = new SeriesPoint3D[10];

// Generate sample data to the array.for (int j = 0; j < 10; j++) { // Random values for data points. points[j].X = 5 + j * 10; points[j].Y = 30 + random.NextDouble() * 25.0; points[j].Z = 10 + i * 10; // You can set an individual color to each point with the Color property. points[j].Color = Color.FromArgb(255, 255, 0, 0); } // Set the points array to series Points property. series.Points = points; // Add the series to chart's View3D. chart.View3D.PointLineSeries3D.Add(series);

5.创建一个注释以显示鼠标跟踪值

// Create a new annotation to display target values when hovering over a point with the mouse.mouseAnnotation = new Annotation3D(chart.View3D, Axis3DBinding.Primary, Axis3DBinding.Primary, Axis3DBinding.Primary){// Set the annotation as invisible by default.Visible = false,

// Set the annotations target location coordinates to use axis values.TargetCoordinateSystem = AnnotationTargetCoordinates.AxisValues,
// Set the annotations location to use relative screen coordinates to target.LocationCoordinateSystem = CoordinateSystem.RelativeCoordinatesToTarget,
// Disable mouse interaction with the annotation.MouseInteraction = false

};

// Set offset to annotation.mouseAnnotation.LocationRelativeOffset.SetValues(40, -70);

// Add annotation to View3D.chart.View3D.Annotations.Add(mouseAnnotation);

6.将 MouseMove 事件处理程序添加到图表中以启用点跟踪

chart.MouseMove += Chart_MouseMove;

7.为鼠标移动事件处理程序创建一个函数

private void Chart_MouseMove(object sender, System.Windows.Input.MouseEventArgs e){// Call BeginUpdate for chart to disable rendering while mouse is moving// over the chart to improve performance.chart.BeginUpdate();

// Set label visible when not hovered over by mouse.mouseAnnotation.Visible = false;
// Check if any object has been found under the mouse.object obj = chart.GetActiveMouseOverObject();if (obj != null){    // Check if the active mouse over object is a PointLineSeries object.    if (obj is PointLineSeries3D)    {        PointLineSeries3D pointLineSeries3D = obj as PointLineSeries3D;
        // Get the point last hit by mouse.        int pointIndex = pointLineSeries3D.LastMouseHitTestIndex;        SeriesPoint3D point = pointLineSeries3D.Points[pointIndex];
        // Set annotation position to the moused over point.        mouseAnnotation.TargetAxisValues.SetValues(point.X, point.Y, point.Z);
        // Set annotation text to display information about the moused over point.        mouseAnnotation.Text = "Series index: " + chart.View3D.PointLineSeries3D.IndexOf(pointLineSeries3D).ToString()            + "\nPoint index: " + pointIndex.ToString()            + "\nX=" + point.X.ToString("0.0") + " ; Y=" + point.Y.ToString("0.0") + " ; Z=" + point.Z.ToString("0.0");
        // Set the annotation visible while mouse is hovering over the point.        mouseAnnotation.Visible = true;    }}
// Call EndUpdate to enable rendering again after handling mouse move event.chart.EndUpdate();}

关于 LightningChart

LightningChart是一家坐落于北欧芬兰的控件开发商Arction Ltd 的产品，是微软公司认证的合作伙伴。高性能图标控件 LightningChart 高效渲染效率很受.NET 开发者青睐。Arction 在重塑图表控件领域中做出极大成绩: 2009 年，Arction 成为业界第一家WinForms图表控件领域中引入 DirectX 2D 渲染的制造商; 2013 年，以第一家针对 WPF 制图行业中使用 DirectX 引入真正硬件加速的制造商而闻名; 近年来，Arction 专注于开发最高性能和最先进的数据可视化工具，设定行业最高标准。