Class FastScatterBitmapSeries

Represents a special kind of scatter series which uses writeablebitmap for rendering chart points. FastScatterBitmapSeries allows to render a collection with large number of data points.

Inheritance
System.Object
ChartSeriesBase
ChartSeries
DataMarkerSeries
CartesianSeries
XyDataSeries
FastScatterBitmapSeries
Inherited Members
Namespace: Syncfusion.UI.Xaml.Charts
Assembly: Syncfusion.Chart.WinUI.dll
Syntax
public class FastScatterBitmapSeries : XyDataSeries, ISupportAxes2D, ISupportAxes
Remarks

FastScatterBitmapSeries renders large quantity of data in fraction of milliseconds using writeablebitmap.

Examples
    <chart:SfChart>

          <chart:SfChart.PrimaryAxis>
              <chart:NumericalAxis/>
          </chart:SfChart.PrimaryAxis>

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

          <chart:FastScatterBitmapSeries
              ItemsSource="{Binding Data}"
              XBindingPath="XValue"
              YBindingPath="YValue"/>

    </chart:SfChart>

Constructors

FastScatterBitmapSeries()

Declaration
public FastScatterBitmapSeries()

Fields

ScatterHeightProperty

Identifies the ScatterHeight dependency property.

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

The identifier for ScatterHeight dependency property.

ScatterWidthProperty

Identifies the ScatterWidth dependency property.

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

The identifier for ScatterWidth dependency property.

ShapeTypeProperty

Identifies the ShapeType dependency property.

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

The identifier for ShapeType dependency property.

Properties

ScatterHeight

Gets or sets a value that specifies the height of the FastScatterBitmap segment.

Declaration
public double ScatterHeight { get; set; }
Property Value
Type Description
System.Double

The default value is 3.

ScatterWidth

Gets or sets a value that specifies the width of the FastScatterBitmap segment.

Declaration
public double ScatterWidth { get; set; }
Property Value
Type Description
System.Double

The default value is 3.

ShapeType

Gets or sets different types of shapes in a fast scatter bitmap series.

Declaration
public ChartSymbol ShapeType { get; set; }
Property Value
Type Description
ChartSymbol

This property takes fast scatter shape value, and its default shape type is ellipse.
Remarks

Fast scatter bitmap series does not support Custom, HorizontalLine and VerticalLine shapes. By using the above shapes for fast scatter bitmap series, you can render only the default type, which is ellipse.

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()

Used to create the segment of FastScatterBitmapSeries.

Declaration
public override void CreateSegments()
Overrides

OnPointerMoved(PointerRoutedEventArgs)

Called when pointer or mouse move on chart area.

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

Event args that contains the event data.
Overrides

OnVisibleRangeChanged(VisibleRangeChangedEventArgs)

Invoked when VisibleRange property changed.

Declaration
protected override void OnVisibleRangeChanged(VisibleRangeChangedEventArgs e)
Parameters
Type Name Description
VisibleRangeChangedEventArgs e

VisibleRangeChangedEventArgs that contains the event data.
Overrides

Implements

See Also