Pie & Donut Chart

Pie chart with configurable inner radius for donut mode, label formatting, and slice animations.

Pie Chart

<HelixPieChart TItem="Segment" Data="@data"
               NameField="@(d => d.Label)"
               ValueField="@(d => d.Amount)"
               Height="350" Width="500" />

Donut Chart

<HelixPieChart InnerRadius="70" ... />

Label Formats

<HelixPieChart LabelFormat="PieLabelFormat.Percent" />     // "45%"
<HelixPieChart LabelFormat="PieLabelFormat.Value" />        // "$45,000"
<HelixPieChart LabelFormat="PieLabelFormat.Name" />         // "Sales"
<HelixPieChart LabelFormat="PieLabelFormat.NamePercent" />  // "Sales 45%"
<HelixPieChart LabelFormat="PieLabelFormat.None" />         // No labels

Parameters

Parameter	Type	Default	Description
`NameField`	`Func<T, string>`	—	Category name selector
`ValueField`	`Func<T, double>`	—	Value selector
`InnerRadius`	`double`	0	Inner radius (0 = pie, >0 = donut)
`LabelFormat`	`PieLabelFormat`	Percent	Label display format
`MinLabelPercent`	`double`	5	Hide labels on slices below this %
`StartAngle`	`double`	-90	Start angle in degrees
`ShowLegend`	`bool`	true	Show legend below chart