Spread for ASP.NET 9.0 Product Documentation
HoleSize Property
Example 


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
System.ArgumentOutOfRangeException 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 creates an exploded doughnut chart.
PieSeries series = new 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);
PiePlotArea plotArea = new PiePlotArea();
plotArea.Location = new PointF(0.2f, 0.2f);
plotArea.Size = new SizeF(0.6f, 0.6f);
plotArea.HoleSize = 0.5;
plotArea.Elevation = 15;
plotArea.Rotation = 20;
plotArea.Series.Add(series);
LabelArea label = new LabelArea();
label.Text = "Exploded Pie Chart";
label.Location = new PointF(0.5f, 0.02f);
label.AlignmentX = 0.5f;
label.AlignmentY = 0.0f;
LegendArea legend = new LegendArea();
legend.Location = new PointF(0.98f, 0.5f);
legend.AlignmentX = 1.0f;
legend.AlignmentY = 0.5f;
ChartModel model = new ChartModel();
model.LabelAreas.Add(label);
model.LegendAreas.Add(legend);
model.PlotAreas.Add(plotArea);
FarPoint.Web.Spread.Chart.SpreadChart chart = new FarPoint.Web.Spread.Chart.SpreadChart();
chart.Model = model;
chart.ViewType = FarPoint.Web.Chart.ChartViewType.View3D
FpSpread1.Sheets[0].Charts.Add(chart);
Dim series As New FarPoint.Web.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.Web.Chart.PiePlotArea()
plotArea.Location = New System.Drawing.PointF(0.2F, 0.2F)
plotArea.Size = New System.Drawing.SizeF(0.6F, 0.6F)
plotArea.HoleSize = 0.5
plotArea.Elevation = 15
plotArea.Rotation = 20
plotArea.Series.Add(series)
Dim label As New FarPoint.Web.Chart.LabelArea()
label.Text = "Exploded Doughnut Chart"
label.Location = New System.Drawing.PointF(0.5F, 0.02F)
label.AlignmentX = 0.5F
label.AlignmentY = 0.0F
Dim legend As New FarPoint.Web.Chart.LegendArea()
legend.Location = New System.Drawing.PointF(0.98F, 0.5F)
legend.AlignmentX = 1.0F
legend.AlignmentY = 0.5F
Dim model As New FarPoint.Web.Chart.ChartModel()
model.LabelAreas.Add(label)
model.LegendAreas.Add(legend)
model.PlotAreas.Add(plotArea)
Dim chart As New FarPoint.Web.Spread.Chart.SpreadChart()
chart.Model = model
chart.ViewType = FarPoint.Web.Chart.ChartViewType.View3D
FpSpread1.Sheets(0).Charts.Add(chart)
Requirements

Target Platforms: Windows 7, Windows 8, Windows 10, Windows Vista, Windows Server 2003, Windows Server 2008, Windows Server 2012, Windows XP Professional

See Also

Reference

PiePlotArea Class
PiePlotArea Members

 

 


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