DxPolarChartArgumentAxis.StartAngle Property

Specifies the start angle of the argument axis.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

[DefaultValue(0)]
[Parameter]
public int StartAngle { get; set; }

Property Value

Type	Default	Description
Int32	0	The start angle, in degrees.

Remarks

Use the StartAngle property to rotate the Polar Chart’s argument axis clockwise (negative angles) or counterclockwise (positive angles).

The following code snippet sets the StartAngle property to 30:

<DxPolarChart Data="@GetData()">
    <DxChartLegend Visible="false" />
    <DxPolarChartArgumentAxis Type="ChartAxisType.Discrete"
                              StartAngle="30" />
    <DxPolarChartValueAxis Type="ChartAxisType.Logarithmic" LogarithmBase="2" />
    <DxPolarChartLineSeries ArgumentField="@((DataPoint s) => s.Argument)" ValueField="@((DataPoint s) => s.Value)" />
</DxPolarChart>

@code {
    List<DataPoint> GetData() {
        List<DataPoint> result = new List<DataPoint>(11);
        result.Add(new DataPoint("Silence", 0));
        result.Add(new DataPoint("Breathing", 0.075));
        result.Add(new DataPoint("Whisper", 0.15));
        result.Add(new DataPoint("Street noise", 8));
        result.Add(new DataPoint("Jackhummer", 32));
        result.Add(new DataPoint("Subway train", 64));
        result.Add(new DataPoint("Loud music", 128));
        result.Add(new DataPoint("Pain threshold", 256));
        result.Add(new DataPoint("Buzzer", 512));
        result.Add(new DataPoint("Rocket start", 2048));
        result.Add(new DataPoint("Deadly level", 16348));
        return result;
    }

    struct DataPoint {
        public DataPoint (string argument, double value) { Argument = argument; Value = value; }
        public string Argument { get; set; }
        public double Value { get; set; }
    }
}

Run Demo: Polar and Radar - Continuous Data