ChartDataSet class

Represents a single data point in a chart.

Each ChartDataSet represents one data point with a color. Multiple ChartDataSet instances can be used to create charts with multiple points, where each dataset represents one point.

This is the primary data structure for line, bar, area, scatter, and other point-based charts.

Example

ChartDataSet(
  color: Colors.blue,
  dataPoint: ChartDataPoint(x: 1, y: 20, label: 'January'),
)

See also:

• ChartDataPoint for individual data points
• BubbleDataSet for bubble charts
• RadarDataSet for radar charts

Constructors

ChartDataSet({required Color color, required ChartDataPoint dataPoint})

Creates a chart data set.

const

Properties

color → Color

The color used to render this data point.

final

dataPoint → ChartDataPoint

The single data point in this dataset.

final

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

copyWith({ChartDataPoint? dataPoint, Color? color}) → ChartDataSet

Creates a copy of this data set 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

Static Methods

isAllDataPointsEmpty(List<ChartDataSet> dataSets) → bool

Returns true if dataSets is empty or every data point has both x and y equal to zero (no meaningful data to display).