Class SplineAreaSeries

SplineAreaSeries connects it data points using a smooth line segment with the areas below are filled in.

Inheritance
System.Object
ChartSeriesBase
ChartSeries
DataMarkerSeries
CartesianSeries
XyDataSeries
SplineAreaSeries
Inherited Members
Namespace: Syncfusion.UI.Xaml.Charts
Assembly: Syncfusion.Chart.WinUI.dll
Syntax
public class SplineAreaSeries : XyDataSeries, ISupportAxes2D, ISupportAxes, ISegmentSelectable
Examples
      <syncfusion:SplineAreaSeries ItemsSource="{Binding Data}" XBindingPath="Year" YBindingPath="Value">
      </syncfusion:SplineAreaSeries>
      SplineAreaSeries series1 = new SplineAreaSeries();
      series1.ItemsSource = viewmodel.Data;
      series1.XBindingPath = "Year";
      series1.YBindingPath = "Value";
      chart.Series.Add(series1);

Constructors

SplineAreaSeries()

Declaration
public SplineAreaSeries()

Fields

IsClosedProperty

The DependencyProperty for IsClosed property.

Declaration
public static readonly DependencyProperty IsClosedProperty
Field Value
Type Description
Microsoft.UI.Xaml.DependencyProperty

SelectedIndexProperty

The DependencyProperty for SelectedIndex property.

Declaration
public static readonly DependencyProperty SelectedIndexProperty
Field Value
Type Description
Microsoft.UI.Xaml.DependencyProperty

SelectionBrushProperty

The DependencyProperty for SelectionBrush property.

Declaration
public static readonly DependencyProperty SelectionBrushProperty
Field Value
Type Description
Microsoft.UI.Xaml.DependencyProperty

SplineTypeProperty

Using a DependencyProperty as the backing store for SplineType. This enables animation, styling, binding, etc...

Declaration
public static readonly DependencyProperty SplineTypeProperty
Field Value
Type Description
Microsoft.UI.Xaml.DependencyProperty

Properties

IsClosed

Gets or sets a value indicating whether area path should be closed or opened.

Declaration
public bool IsClosed { get; set; }
Property Value
Type Description
System.Boolean

If its true, Area stroke will be closed; otherwise stroke will be applied on top of the series only.

SelectedIndex

Gets or sets the index of the selected segment.

Declaration
public int SelectedIndex { get; set; }
Property Value
Type Description
System.Int32

Int value represents the index of the data point(or segment) to be selected.

SelectedSegments

Gets the selected segments in this series, when we enable the multiple selection.

Declaration
protected override List<ChartSegment> SelectedSegments { get; }
Property Value
Type Description
System.Collections.Generic.List<ChartSegment>

It returns the list of ChartSegment.
Overrides

SelectionBrush

Gets or sets the interior(brush) for the selected segment(s).

Declaration
public Brush SelectionBrush { get; set; }
Property Value
Type Description
Microsoft.UI.Xaml.Media.Brush

The Microsoft.UI.Xaml.Media.Brush value.

SplineType

Gets or sets SplineType enum value which indicates the spline series type.

Declaration
public SplineType SplineType { get; set; }
Property Value
Type Description
SplineType

SplineType

Methods

CreateSegment()

Creates an instance of series segment.

Declaration
protected override ChartSegment CreateSegment()
Returns
Type Description
ChartSegment

Returns the instance of corresponding series segment.
Overrides
Remarks

This customization is not supported for fast type series and technical indicators.

Examples

This sample shows how to call the CreateSegment() method to customize the line series segments.

public class LineSeriesExt : LineSeries
{​ 
    protected override ChartSegment CreateSegment()
    {​
        return new LineSegmentExt();
    }​
}​

public class LineSegmentExt : LineSegment
{​
    public override UIElement CreateVisual(Size size)
    {​
        // Write your customization code here.
    }​

    public override void Update(IChartTransformer transformer)
    {​
        // Write your customization code here.
    }​
}

CreateSegments()

Creates the segments of SplineAreaSeries.

Declaration
public override void CreateSegments()
Overrides

GetBezierControlPoints(ChartPoint, ChartPoint, Double, Double, out ChartPoint, out ChartPoint)

Method used to calculate the bezier values.

Declaration
protected void GetBezierControlPoints(ChartPoint point1, ChartPoint point2, double ys1, double ys2, out ChartPoint controlPoint1, out ChartPoint controlPoint2)
Parameters
Type Name Description
ChartPoint point1

chart point
ChartPoint point2

chart point
System.Double ys1

ys1
System.Double ys2

ys2
ChartPoint controlPoint1

chart point
ChartPoint controlPoint2

chart point

GetCardinalSpline(List<Double>, IList<Double>)

Method used to calculate cardinal spline values.

Declaration
protected void GetCardinalSpline(List<double> xValues, IList<double> yValues)
Parameters
Type Name Description
System.Collections.Generic.List<System.Double> xValues

xvalues
System.Collections.Generic.IList<System.Double> yValues

yvalues

GetMonotonicSpline(List<Double>, IList<Double>)

Method used to calculate monotonic spline values.

Declaration
protected void GetMonotonicSpline(List<double> xValues, IList<double> yValues)
Parameters
Type Name Description
System.Collections.Generic.List<System.Double> xValues

xvalues
System.Collections.Generic.IList<System.Double> yValues

yvalues

NaturalSpline(List<Double>, IList<Double>, out Double[])

Method used to calculate the natural spline values.

Declaration
protected void NaturalSpline(List<double> xValues, IList<double> yValues, out double[] ys2)
Parameters
Type Name Description
System.Collections.Generic.List<System.Double> xValues

xvalues
System.Collections.Generic.IList<System.Double> yValues

yvalues
System.Double[] ys2

ys2

OnDataSourceChanged(IEnumerable, IEnumerable)

Called when ItemsSource property changed.

Declaration
protected override void OnDataSourceChanged(IEnumerable oldValue, IEnumerable newValue)
Parameters
Type Name Description
System.Collections.IEnumerable oldValue

old value
System.Collections.IEnumerable newValue

new value
Overrides

OnTapped(TappedRoutedEventArgs)

Used to update the series tooltip when tapping on the series segments.

Declaration
protected override void OnTapped(TappedRoutedEventArgs e)
Parameters
Type Name Description
Microsoft.UI.Xaml.Input.TappedRoutedEventArgs e

TappedRoutedEventArgs
Overrides

SelectedIndexChanged(Int32, Int32)

Method used to set SelectionBrush to SelectedIndex segment.

Declaration
protected override void SelectedIndexChanged(int newIndex, int oldIndex)
Parameters
Type Name Description
System.Int32 newIndex

new index
System.Int32 oldIndex

old index
Overrides

Implements

See Also