RadarDiagram.StartAngleInDegrees Property
Specifies the angle for the radial axis to start drawing.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v18.2.dll
Declaration
[XtraChartsLocalizableCategory(XtraChartsCategory.Appearance)]
[XtraSerializableProperty]
public double StartAngleInDegrees { get; set; }Property Value
| Type | Description |
|---|---|
| Double | A Double value (in degrees, from -360 to 360). |
Remarks
The rotation angle direction depends on the RadarDiagram.RotationDirection property value.
The following images demonstrate the StartAngleInDegrees property in action.
| StartAngleInDegrees = 0 | StartAngleInDegrees = 60 |
|---|---|
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Example
The following example demonstrates how to create a ChartControl with a series of the PolarAreaSeriesView type, set its general properties, and add this chart to a form at runtime. Before proceeding with this example, first create a Windows Forms Application in Visual Studio, and include all necessary assemblies to the References list of your project.
Then, add the following code to the Form.Load event handler.
using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...
private void Form1_Load(object sender, EventArgs e) {
// Create a new chart.
ChartControl polarAreaChart = new ChartControl();
// Add a polar series to it.
Series series1 = new Series("Series 1", ViewType.PolarArea);
// Populate the series with points.
series1.Points.Add(new SeriesPoint(0, 90));
series1.Points.Add(new SeriesPoint(90, 70));
series1.Points.Add(new SeriesPoint(180, 50));
series1.Points.Add(new SeriesPoint(270, 100));
// Add the series to the chart.
polarAreaChart.Series.Add(series1);
// Flip the diagram (if necessary).
((PolarDiagram)polarAreaChart.Diagram).StartAngleInDegrees = 180;
((PolarDiagram)polarAreaChart.Diagram).RotationDirection =
RadarDiagramRotationDirection.Counterclockwise;
// Add a title to the chart and hide the legend.
ChartTitle chartTitle1 = new ChartTitle();
chartTitle1.Text = "Polar Area Chart";
polarAreaChart.Titles.Add(chartTitle1);
polarAreaChart.Legend.Visible = false;
// Add the chart to the form.
polarAreaChart.Dock = DockStyle.Fill;
this.Controls.Add(polarAreaChart);
}