Scatter

Unlike Categorical series, ScatterSeries plots its data upon two numerical axes. Scatter series identify the position of each ScatterDataPoint using two numerical values - XValue and YValue for the horizontal and vertical axes respectively, just like in the typical Cartesian coordinate system. Here is how to create two ScatterSeries and populate them manually:

Initial Setup

• C#
• VB.NET

ScatterSeries scatterSeries = new ScatterSeries();
scatterSeries.Name = "";
scatterSeries.DataPoints.Add(new ScatterDataPoint(15, 19));
scatterSeries.DataPoints.Add(new ScatterDataPoint(18, 10));
scatterSeries.DataPoints.Add(new ScatterDataPoint(13, 15));
scatterSeries.DataPoints.Add(new ScatterDataPoint(10, 8));
scatterSeries.DataPoints.Add(new ScatterDataPoint(5, 12));
scatterSeries.PointSize = new SizeF(8, 8);
this.radChartView1.Series.Add(scatterSeries);

ScatterSeries scatterSeries2 = new ScatterSeries();
scatterSeries2.Name = "";
scatterSeries2.DataPoints.Add(new ScatterDataPoint(20, 20));
scatterSeries2.DataPoints.Add(new ScatterDataPoint(15, 10));
scatterSeries2.DataPoints.Add(new ScatterDataPoint(7, 6));
scatterSeries2.DataPoints.Add(new ScatterDataPoint(18, 22));
scatterSeries2.DataPoints.Add(new ScatterDataPoint(10, 10));
scatterSeries2.PointSize = new SizeF(8, 8);
scatterSeries.Shape = new RoundRectShape(0);
this.radChartView1.Series.Add(scatterSeries2);

Dim scatterSeries As New ScatterSeries()
scatterSeries.Name = ""
scatterSeries.DataPoints.Add(New ScatterDataPoint(15, 19))
scatterSeries.DataPoints.Add(New ScatterDataPoint(18, 10))
scatterSeries.DataPoints.Add(New ScatterDataPoint(13, 15))
scatterSeries.DataPoints.Add(New ScatterDataPoint(10, 8))
scatterSeries.DataPoints.Add(New ScatterDataPoint(5, 12))
scatterSeries.PointSize = New SizeF(8, 8)
Me.RadChartView1.Series.Add(scatterSeries)
Dim scatterSeries2 As New ScatterSeries()
scatterSeries2.Name = ""
scatterSeries2.DataPoints.Add(New ScatterDataPoint(20, 20))
scatterSeries2.DataPoints.Add(New ScatterDataPoint(15, 10))
scatterSeries2.DataPoints.Add(New ScatterDataPoint(7, 6))
scatterSeries2.DataPoints.Add(New ScatterDataPoint(18, 22))
scatterSeries2.DataPoints.Add(New ScatterDataPoint(10, 10))
scatterSeries2.PointSize = New SizeF(8, 8)
Me.RadChartView1.Series.Add(scatterSeries2)

Figure 1: Initial Setup

ScatterSeries have few important properties:

• PointSize: The property defines the size of the ScatterSeries points.

• XValueMember: If a DataSource is set, the property determines the name of the field that holds the XValue.

• YValueMember: If a DataSource is set, the property determines the name of the field that holds the YValue.

• Shape: To change the shape of a series points use the Shape property of the series

Custom Shape

• C#
• VB.NET

RoundRectShape shape = new RoundRectShape(0);
scatterSeries2.Shape = shape;

Dim shape As New RoundRectShape(0)
scatterSeries2.Shape = shape

Figure 2: Custom Shape