PolarSeries Closed Line

[James]

Hi, 

When creating my polar charts I sometimes need them to be open ended (if say I only have 180 degrees of data). Currently when I plot them they automatically close (image attached). Is there an "IsClosed" property for the series? I'm using the ChartSeriesProvider.

Thanks,

James

[Martin Ivanov]

Hello James,

Yes, the PolarLineSeries and the PolarAreaSeries expose IsClosed property that determines whether the line curve will be closed. The default value of this property is True. However, as this property is not a DependencyProperty it can't be set in Style. To resolve this you can create an attached property and use it to set the IsClosed property in the Style of the series descriptor.

Here is an example:

<telerik:PolarSeriesDescriptor.Style>
    <Style TargetType="telerik:PolarLineSeries">
        <Setter Property="local:PolarChartUtilities.IsSeriesClosed" Value="False" />
    </Style>
</telerik:PolarSeriesDescriptor.Style>

public class PolarChartUtilities

{

    public static bool GetIsSeriesClosed(DependencyObject obj)

    {

        return (bool)obj.GetValue(IsSeriesClosedProperty);

    }

 

    public static void SetIsSeriesClosed(DependencyObject obj, bool value)

    {

        obj.SetValue(IsSeriesClosedProperty, value);

    }

 

    public static readonly DependencyProperty IsSeriesClosedProperty =

        DependencyProperty.RegisterAttached("IsSeriesClosed", typeof(bool), typeof(PolarChartUtilities), new PropertyMetadata(true, OnIsSeriesClosedChanged));

 

    private static void OnIsSeriesClosedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

    {

        if (e.NewValue == null) { return; }
        var series = (PolarLineSeries)d;


        series.IsClosed = (bool)e.NewValue;

    }

}

Please try this approach and let me know if it works for you.

Regards,
Martin
Telerik

 

 

[James]

Thanks Martin that works for me!

[Marcello]

Hi,

 

exists a similar strategy in Windows Forms version?

thanks.

[Martin Ivanov]

Hi Marcello,

Can you post your question in the WinForms section of the forums? This way more people from the WinForms community could see your question and the chance to get a suitable answer increases. Thank you for the cooperation.

Regards,
Martin
Telerik by Progress

[Marcello]

Moved, thanks