样条图

样条图 是由 Spline3DSeriesView 对象来表示的，此对象属于点、折线和样条系列视图。这种视图类似于折线图，但是绘制一条适当的穿过系列中每个数据点的曲线。

在下面的插图中显示了一个样条图。

下表列出了这种图表类型的主要特征。

特征	取值
系列视图类型	Spline3DSeriesView
图象类型	XYDiagram3D
每个数据点的参数个数	1
每个数据点的取值个数	1

注意
要获得关于哪些图表类型可以与样条图组合使用的信息，请参阅组合使用不同的系列视图文档。

下面的示例演示了在运行时刻如何创建 ChartControl (拥有一个 Spline3DSeriesView 类型的系列)，设置它的常规属性，并把图表添加到窗体中。在继续本示例之前，首先要在 Visual Studio 中创建一个 Windows 窗体应用程序，并把所有必需的程序集包含到项目的“引用”列表中。

然后，把下列代码添加到 Form.Load 事件处理程序。

C#	复制代码
using System; using System.Windows.Forms; using DevExpress.XtraCharts; // ... private void Form1_Load(object sender, EventArgs e) { // Create a new chart. ChartControl SplineChart3D = new ChartControl(); // Add a spline series to it. Series series1 = new Series("Series 1", ViewType.Spline3D); // Add points to the series. series1.Points.Add(new SeriesPoint("A", 12)); series1.Points.Add(new SeriesPoint("B", 4)); series1.Points.Add(new SeriesPoint("C", 17)); series1.Points.Add(new SeriesPoint("D", 7)); series1.Points.Add(new SeriesPoint("E", 12)); series1.Points.Add(new SeriesPoint("F", 4)); series1.Points.Add(new SeriesPoint("G", 17)); series1.Points.Add(new SeriesPoint("H", 7)); // Add both series to the chart. SplineChart3D.Series.Add(series1); // Access labels of the series. ((Line3DSeriesLabel)series1.Label).Visible = true; ((Line3DSeriesLabel)series1.Label).ResolveOverlappingMode = ResolveOverlappingMode.Default; // Access another series options. series1.PointOptions.PointView = PointView.ArgumentAndValues; // Customize the view-type-specific properties of the series. Spline3DSeriesView myView = (Spline3DSeriesView)series1.View; myView.LineWidth = 5; myView.LineThickness = 4; myView.LineTensionPercent = 50; // Access the diagram's options. ((XYDiagram3D)SplineChart3D.Diagram).ZoomPercent = 110; ((XYDiagram3D)SplineChart3D.Diagram).VerticalScrollPercent = 10; // Add a title to the chart and hide the legend. ChartTitle chartTitle1 = new ChartTitle(); chartTitle1.Text = "3D Spline Chart"; SplineChart3D.Titles.Add(chartTitle1); SplineChart3D.Legend.Visible = false; // Add the chart to the form. SplineChart3D.Dock = DockStyle.Fill; this.Controls.Add(SplineChart3D); }

C#

复制代码

using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...

private void Form1_Load(object sender, EventArgs e) {
    // Create a new chart.
    ChartControl SplineChart3D = new ChartControl();

    // Add a spline series to it.
    Series series1 = new Series("Series 1", ViewType.Spline3D);

    // Add points to the series.
    series1.Points.Add(new SeriesPoint("A", 12));
    series1.Points.Add(new SeriesPoint("B", 4));
    series1.Points.Add(new SeriesPoint("C", 17));
    series1.Points.Add(new SeriesPoint("D", 7));
    series1.Points.Add(new SeriesPoint("E", 12));
    series1.Points.Add(new SeriesPoint("F", 4));
    series1.Points.Add(new SeriesPoint("G", 17));
    series1.Points.Add(new SeriesPoint("H", 7));

    // Add both series to the chart.
    SplineChart3D.Series.Add(series1);

    // Access labels of the series.
    ((Line3DSeriesLabel)series1.Label).Visible = true;
    ((Line3DSeriesLabel)series1.Label).ResolveOverlappingMode =
        ResolveOverlappingMode.Default;

    // Access another series options.
    series1.PointOptions.PointView = PointView.ArgumentAndValues;

    // Customize the view-type-specific properties of the series.
    Spline3DSeriesView myView = (Spline3DSeriesView)series1.View;
    myView.LineWidth = 5;
    myView.LineThickness = 4;
    myView.LineTensionPercent = 50;

    // Access the diagram's options.
    ((XYDiagram3D)SplineChart3D.Diagram).ZoomPercent = 110;
    ((XYDiagram3D)SplineChart3D.Diagram).VerticalScrollPercent = 10;

    // Add a title to the chart and hide the legend.
    ChartTitle chartTitle1 = new ChartTitle();
    chartTitle1.Text = "3D Spline Chart";
    SplineChart3D.Titles.Add(chartTitle1);
    SplineChart3D.Legend.Visible = false;

    // Add the chart to the form.
    SplineChart3D.Dock = DockStyle.Fill;
    this.Controls.Add(SplineChart3D);
}

Visual Basic	复制代码
Imports System Imports System.Windows.Forms Imports DevExpress.XtraCharts ' ... Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load ' Create a new chart. Dim SplineChart3D As New ChartControl() ' Add a spline series to it. Dim series1 As New Series("Series 1", ViewType.Spline3D) ' Add points to the series. series1.Points.Add(New SeriesPoint("A", 12)) series1.Points.Add(New SeriesPoint("B", 4)) series1.Points.Add(New SeriesPoint("C", 17)) series1.Points.Add(New SeriesPoint("D", 7)) series1.Points.Add(New SeriesPoint("E", 12)) series1.Points.Add(New SeriesPoint("F", 4)) series1.Points.Add(New SeriesPoint("G", 17)) series1.Points.Add(New SeriesPoint("H", 7)) ' Add both series to the chart. SplineChart3D.Series.Add(series1) ' Access labels of the series. CType(series1.Label, Line3DSeriesLabel).Visible = True CType(series1.Label, Line3DSeriesLabel).ResolveOverlappingMode = _ ResolveOverlappingMode.Default ' Access another series options. series1.PointOptions.PointView = PointView.ArgumentAndValues ' Customize the view-type-specific properties of the series. Dim myView As Spline3DSeriesView = CType(series1.View, Spline3DSeriesView) myView.LineWidth = 5 myView.LineThickness = 4 myView.LineTensionPercent = 50 ' Access the diagram's options. CType(SplineChart3D.Diagram, XYDiagram3D).ZoomPercent = 110 CType(SplineChart3D.Diagram, XYDiagram3D).VerticalScrollPercent = 10 ' Add a title to the chart and hide the legend. Dim chartTitle1 As New ChartTitle() chartTitle1.Text = "3D Spline Chart" SplineChart3D.Titles.Add(chartTitle1) SplineChart3D.Legend.Visible = False ' Add the chart to the form. SplineChart3D.Dock = DockStyle.Fill Me.Controls.Add(SplineChart3D) End Sub

Visual Basic

复制代码

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...

Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
    ' Create a new chart.
    Dim SplineChart3D As New ChartControl()

    ' Add a spline series to it.
    Dim series1 As New Series("Series 1", ViewType.Spline3D)

    ' Add points to the series.
    series1.Points.Add(New SeriesPoint("A", 12))
    series1.Points.Add(New SeriesPoint("B", 4))
    series1.Points.Add(New SeriesPoint("C", 17))
    series1.Points.Add(New SeriesPoint("D", 7))
    series1.Points.Add(New SeriesPoint("E", 12))
    series1.Points.Add(New SeriesPoint("F", 4))
    series1.Points.Add(New SeriesPoint("G", 17))
    series1.Points.Add(New SeriesPoint("H", 7))

    ' Add both series to the chart.
    SplineChart3D.Series.Add(series1)

    ' Access labels of the series.
    CType(series1.Label, Line3DSeriesLabel).Visible = True
    CType(series1.Label, Line3DSeriesLabel).ResolveOverlappingMode = _ 
        ResolveOverlappingMode.Default

    ' Access another series options.
    series1.PointOptions.PointView = PointView.ArgumentAndValues

    ' Customize the view-type-specific properties of the series.
    Dim myView As Spline3DSeriesView = CType(series1.View, Spline3DSeriesView)
    myView.LineWidth = 5
    myView.LineThickness = 4
    myView.LineTensionPercent = 50

    ' Access the diagram's options.
    CType(SplineChart3D.Diagram, XYDiagram3D).ZoomPercent = 110
    CType(SplineChart3D.Diagram, XYDiagram3D).VerticalScrollPercent = 10

    ' Add a title to the chart and hide the legend.
    Dim chartTitle1 As New ChartTitle()
    chartTitle1.Text = "3D Spline Chart"
    SplineChart3D.Titles.Add(chartTitle1)
    SplineChart3D.Legend.Visible = False

    ' Add the chart to the form.
    SplineChart3D.Dock = DockStyle.Fill
    Me.Controls.Add(SplineChart3D)
End Sub

Show Me
在 DevExpress Code Central 数据库中可以找到完整的示例项目，网址是 http://www.devexpress.com/example=E1676。取决于目标平台类型 (ASP.NET、WinForms 等)，可以在线运行本示例，或者下载自动可执行的示例。

三维 XY-图象

简要说明

图表类型特征

示例

参阅