Spread Windows Forms 11.0 Product Documentation
HoleSize Property
Example 


FarPoint.Win.Chart Assembly > FarPoint.Win.Chart Namespace > PiePlotArea Class : HoleSize Property
Gets or sets the size of the hole in the middle of the pie.
Syntax
'Declaration
 
Public Property HoleSize As Single
'Usage
 
Dim instance As PiePlotArea
Dim value As Single
 
instance.HoleSize = value
 
value = instance.HoleSize
public float HoleSize {get; set;}
Exceptions
ExceptionDescription
value is less than zero or is greater than or equal to one.
Remarks
Hole size is measured relative to the pie radius (0 = no hole, 1 = full pie radius).
Example
This example sets the HoleSize property.
FarPoint.Win.Chart.PieSeries series = new FarPoint.Win.Chart.PieSeries(); 
series.SeriesName = "Series 0"; 
series.Values.Add(1.0); 
series.Values.Add(2.0); 
series.Values.Add(4.0); 
series.Values.Add(8.0); 
series.CategoryNames.Add("alpha"); 
series.CategoryNames.Add("beta"); 
series.CategoryNames.Add("gamma"); 
series.CategoryNames.Add("delta"); 
series.PieDetachments.Add(0.5f); 
FarPoint.Win.Chart.PiePlotArea plotArea = new FarPoint.Win.Chart.PiePlotArea(); 
plotArea.Location = new PointF(0.2f, 0.2f); 
plotArea.Size = new SizeF(0.6f, 0.6f); 
plotArea.HoleSize = 0.5;
// elevation and rotation are useful with 3D charts
plotArea.Elevation = 15;
plotArea.Rotation = 20;
plotArea.Series.Add(series); 
FarPoint.Win.Chart.LabelArea label = new FarPoint.Win.Chart.LabelArea(); 
label.Text = "Exploded Pie Chart"; 
label.Location = new PointF(0.5f, 0.02f); 
label.AlignmentX = 0.5f; 
label.AlignmentY = 0.0f; 
FarPoint.Win.Chart.LegendArea legend = new FarPoint.Win.Chart.LegendArea(); 
legend.Location = new PointF(0.98f, 0.5f); 
legend.AlignmentX = 1.0f; 
legend.AlignmentY = 0.5f; 
FarPoint.Win.Chart.ChartModel model = new FarPoint.Win.Chart.ChartModel(); 
model.LabelAreas.Add(label); 
model.LegendAreas.Add(legend); 
model.PlotAreas.Add(plotArea); 
fpChart1.Model = model;
Dim series As New FarPoint.Win.Chart.PieSeries()
series.SeriesName = "Series 0"
series.Values.Add(1.0)
series.Values.Add(2.0)
series.Values.Add(4.0)
series.Values.Add(8.0)
series.CategoryNames.Add("alpha")
series.CategoryNames.Add("beta")
series.CategoryNames.Add("gamma")
series.CategoryNames.Add("delta")
series.PieDetachments.Add(0.5f)
Dim plotArea As New FarPoint.Win.Chart.PiePlotArea()
plotArea.Location = New PointF(0.2f, 0.2f)
plotArea.Size = New SizeF(0.6f, 0.6f)
plotArea.HoleSize = 0.5
'elevation and rotation are useful with 3D charts
plotArea.Elevation = 15
plotArea.Rotation = 20
plotArea.Series.Add(series)
Dim label As New FarPoint.Win.Chart.LabelArea()
label.Text = "Exploded Pie Chart"
label.Location = New PointF(0.5f, 0.02f)
label.AlignmentX = 0.5f
label.AlignmentY = 0.0f
Dim legend As New FarPoint.Win.Chart.LegendArea()
legend.Location = new PointF(0.98f, 0.5f)
legend.AlignmentX = 1.0f
legend.AlignmentY = 0.5f
Dim model As New FarPoint.Win.Chart.ChartModel()
model.LabelAreas.Add(label)
model.LegendAreas.Add(legend)
model.PlotAreas.Add(plotArea)
fpChart1.Model = model
See Also

Reference

PiePlotArea Class
PiePlotArea Members