Polar Area Chart in .NET MAUI Polar Chart

18 Nov 20183 minutes to read

Polar Area Chart

To display an area series in a polar chart, instantiate the PolarAreaSeries and include it in the Series collection property of SfPolarChart.

Prerequisite: Ensure that the required NuGet package is installed, the necessary namespaces are imported, and the SfPolarChart control is properly configured in your application. For detailed setup and configuration instructions, refer to the Getting Started guide.

XAML

<chart:SfPolarChart> 
    <chart:SfPolarChart.PrimaryAxis>
        <chart:CategoryAxis/>
    </chart:SfPolarChart.PrimaryAxis>

    <chart:SfPolarChart.SecondaryAxis>
        <chart:NumericalAxis/>
    </chart:SfPolarChart.SecondaryAxis>   

    <chart:PolarAreaSeries ItemsSource = "{Binding PlantDetails}"
                           XBindingPath = "Direction" 
                           YBindingPath = "Tree"/>  
</chart:SfPolarChart>

C#

SfPolarChart chart = new SfPolarChart();

CategoryAxis primaryAxis = new CategoryAxis();
chart.PrimaryAxis = primaryAxis;

NumericalAxis secondaryAxis = new NumericalAxis();
chart.SecondaryAxis = secondaryAxis;

PolarAreaSeries series = new PolarAreaSeries()
{
    ItemsSource = new PlantViewModel().PlantDetails,
    XBindingPath = "Direction",
    YBindingPath = "Tree"
};

chart.Series.Add(series);
this.Content = chart;

Closed Series

The IsClosed property is used to render the series with or without a closed path. The default value is true, which creates a closed polygon shape. Set to false to create an open path that doesn’t connect the last point to the first.

Note: Negative Y values are not recommended for polar area charts as they may produce unexpected visualizations. Ensure all Y values are non-negative for optimal results.

XAML

<chart:SfPolarChart> 
    <!-- code omitted for brevity -->
    <chart:PolarAreaSeries ItemsSource = "{Binding PlantDetails}" 
                           XBindingPath = "Direction" 
                           YBindingPath = "Tree"
                           IsClosed = "False"/>  
</chart:SfPolarChart>

C#

SfPolarChart chart = new SfPolarChart();
// code omitted for brevity
PolarAreaSeries series = new PolarAreaSeries()
{
    ItemsSource = new PlantViewModel().PlantDetails,
    XBindingPath = "Direction",
    YBindingPath = "Tree",
    IsClosed  = false
};

chart.Series.Add(series);
this.Content = chart;