Scale<V, SV extends num> class abstract

The specification of a scale.

A scale converts original tuple values to scaled values. For DiscreteScale, the scaled value is an int of natural number, and for ContinuousScale is a double normalized to [0, 1].

Besides, variable meta data and axis tick settings are also specified in it's scale.

The generic V is the type of original value, and SV is the type of scaled value.

See also:

• Variable, a scale corresponds to a variable.
• AxisGuide, axis tick settings are specified the scale.

Implementers

• ContinuousScale
• DiscreteScale

Constructors

Scale({String? title, String? formatter(V)?, List<V>? ticks, int? tickCount})

Creates a scale.

Properties

formatter ↔ (String? Function(V)?)

Convert the value to a String on the chart.

read / write

hashCode → int

The hash code for this object.

read-only, inherited

runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

tickCount ↔ int?

The desired count of axis ticks.

read / write

ticks ↔ List<V>?

Indicates the axis ticks directly.

read / write

title ↔ String?

Title of the variable this scale corresponds to.

read / write

Methods

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.

override