ScaleOrdinal<X, Y> class Ordinal scales

Unlike continuous scales, ordinal scales have a discrete domain and range.

For example, an ordinal scale might map a set of named categories to a set of colors, or determine the horizontal positions of columns in a column chart.

Implemented types

• Scale<X, Y>

Implementers

• ScalePoint

Constructors

ScaleOrdinal.new({List<X>? domain, List<Y>? range})

Constructs a new ordinal scale with the specified domain and range.

Properties

domain ↔ List<X>

The scale's domain that specifies the input values.

getter/setter pair, override

hashCode → int

The hash code for this object.

no setter, inherited

implicit ↔ bool

Whether or not the scale currently infers domain implicitly from usage.

getter/setter pair

range ↔ List<Y>

The scale's range that specifies the output values.

getter/setter pair, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

unknown ↔ Y?

The output value of the scale for unknown input values.

getter/setter pair

Methods

call(X? d) → Y?

Given a value in the input domain, returns the corresponding value in the output range.

override

copy() → ScaleOrdinal<X, Y>

Returns an exact copy of this ordinal scale.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited