PieData class

Represents a segment in a pie or donut chart.

Each segment has a label, a numeric value, and a color for visualization. The percentage is calculated automatically based on the total of all segments.

This is an immutable value class used for pie, donut, pyramid, and funnel charts.

Example

const PieData(
  label: 'Mobile',
  value: 45.0,
  color: Colors.blue,
)

See also:

Constructors

PieData({required String label, double value = 0.0, required Color color, bool showValue = true, bool showLabel = true, double circleSize = 18.0})

Creates a pie chart segment.

const

Properties

circleSize → double

width and height

final

color → Color

The color used to render this segment.

final

hashCode → int

The hash code for this object.

no setter, override

label → String

The label displayed in the legend and tooltips.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

showLabel → bool

final

showValue → bool

Whether to show the value for this segment.

final

value → double

The numeric value of this segment.

final

Methods

copyWith({String? label, double? value, Color? color, bool? showValue}) → PieData

Creates a copy of this pie data with the given fields replaced.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override