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CartesianFreeFigureAnnotation

CartesianFreeFigureAnnotation allows you to add an annotation in RadChartView that is formed by a set of FreeFigurePoints. This allows you to create a free figure plotted on the view-port. Each FreeFigurePoint is defined by X and Y values.

Figure 1: CartesianFreeFigureAnnotation

free-figure-annotation 001

Define Annotation

ScatterSeries scatterSeries = new ScatterSeries();
scatterSeries.Name = "ChartData";
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.DataPoints.Add(new ScatterDataPoint(20, 20));
scatterSeries.DataPoints.Add(new ScatterDataPoint(15, 10));
scatterSeries.DataPoints.Add(new ScatterDataPoint(7, 6));
scatterSeries.DataPoints.Add(new ScatterDataPoint(18, 22));
scatterSeries.DataPoints.Add(new ScatterDataPoint(10, 10));
scatterSeries.PointSize = new SizeF(8, 8);
this.radChartView1.Series.Add(scatterSeries);
CartesianFreeFigureAnnotation freeAnnotation = new CartesianFreeFigureAnnotation();
freeAnnotation.Points.Add(new FreeFigurePoint(6, 8));
freeAnnotation.Points.Add(new FreeFigurePoint(8, 15));
freeAnnotation.Points.Add(new FreeFigurePoint(15, 17));
freeAnnotation.Points.Add(new FreeFigurePoint(17, 8));
freeAnnotation.Points.Add(new FreeFigurePoint(12, 5));
freeAnnotation.Points.Add(new FreeFigurePoint(6, 8));
freeAnnotation.CloseFigure = true;
freeAnnotation.Spline = false;
freeAnnotation.Label = "Annotation";
freeAnnotation.Font = new Font("Arial", 12f, FontStyle.Regular);
freeAnnotation.BackColor = Color.FromArgb(50, 37, 160, 219);
freeAnnotation.BorderDashStyle = DashStyle.Custom;
freeAnnotation.BorderDashPattern = new float[] { 9, 3, 2, 4 };
freeAnnotation.BorderColor = Color.Orange;
freeAnnotation.BorderWidth = 2;
freeAnnotation.PointShape = new StarShape();
freeAnnotation.PointSize = new SizeF(24, 24);
this.radChartView1.Annotations.Add(freeAnnotation);

Dim scatterSeries As ScatterSeries = New ScatterSeries()
scatterSeries.Name = "ChartData"
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.DataPoints.Add(New ScatterDataPoint(20, 20))
scatterSeries.DataPoints.Add(New ScatterDataPoint(15, 10))
scatterSeries.DataPoints.Add(New ScatterDataPoint(7, 6))
scatterSeries.DataPoints.Add(New ScatterDataPoint(18, 22))
scatterSeries.DataPoints.Add(New ScatterDataPoint(10, 10))
scatterSeries.PointSize = New SizeF(8, 8)
Me.radChartView1.Series.Add(scatterSeries)
Dim freeAnnotation As CartesianFreeFigureAnnotation = New CartesianFreeFigureAnnotation()
freeAnnotation.Points.Add(New FreeFigurePoint(6, 8))
freeAnnotation.Points.Add(New FreeFigurePoint(8, 15))
freeAnnotation.Points.Add(New FreeFigurePoint(15, 17))
freeAnnotation.Points.Add(New FreeFigurePoint(17, 8))
freeAnnotation.Points.Add(New FreeFigurePoint(12, 5))
freeAnnotation.Points.Add(New FreeFigurePoint(6, 8))
freeAnnotation.CloseFigure = True
freeAnnotation.Spline = False
freeAnnotation.Label = "Annotation"
freeAnnotation.Font = New Font("Arial", 12.0F, FontStyle.Regular)
freeAnnotation.BackColor = Color.FromArgb(50, 37, 160, 219)
freeAnnotation.BorderDashStyle = DashStyle.Custom
freeAnnotation.BorderDashPattern = New Single() {9, 3, 2, 4}
freeAnnotation.BorderColor = Color.Orange
freeAnnotation.BorderWidth = 2
freeAnnotation.PointShape = New StarShape()
freeAnnotation.PointSize = New SizeF(24, 24) 
Me.radChartView1.Annotations.Add(freeAnnotation)

Properties

Property Description
Label Gets or sets the label.
PointSize Gets or sets the point size.
PointShape Gets or sets the point shape.
Points Gets the collection of data points.
CloseFigure Determines whether the figure will be closed by connecting a line from the endpoint to the starting point.
Spline Gets or sets a value indicating whether the annotation will be drawn as a spline.
SplineTension Gets or sets a value indicating the tension of the spline. Spline property must be set to true for this property to have effect.
PositonOffset Allows you to specify the offset for the label.

See Also

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