BandScale<T> class

A band scale for categorical/ordinal data.

Band scales divide the range into uniform bands, one for each domain value.

Inheritance
Available extensions

Constructors

BandScale({required List<T> domain, required (double, double) range, double paddingInner = 0.0, double paddingOuter = 0.0, double align = 0.5})

Properties

align → double
Alignment of bands within the range (0.0 to 1.0).
final
bandwidth → double
The width of each band.
no setter
domain → (T, T)
The input domain (data space) as (min, max).
no setteroverride
domainValues → List<T>
The full list of domain values.
no setter
hashCode → int
The hash code for this object.
no setterinherited
isInverted → bool
Whether this scale is inverted (range end < range start).
no setterinherited
paddingInner → double
Padding between bands (0.0 to 1.0).
final
paddingOuter → double
Padding at the edges (0.0 to 1.0).
final
range → (double, double)
The output range (screen space) as (start, end).
no setteroverride
rangeExtent → double
The length of the range.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
step → double
The step size between band starts.
no setter

Methods

axis({ChartPosition position = ChartPosition.bottom}) → AxisBuilder<T>

Available on Scale<T>, provided by the ScaleAxisExtension extension

Creates an axis builder for this scale.
copyWithDomain(T min, T max) → Scale<T>
Creates a copy of this scale with a new domain.
override
copyWithRange(double start, double end) → Scale<T>
Creates a copy of this scale with a new range.
override
invert(double value) → T
Inverse mapping from range value to domain value.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
scale(T value) → double
Maps a domain value to a range value.
override
scaleCenter(T value) → double
Returns the center position of the band for a value.
tickFormatter({int? precision}) → String Function(T)
Returns a tick formatter function for this scale.
override
ticks({int? count}) → List<T>
Returns nicely-rounded tick values for this scale.
override
toString() → String
A string representation of this object.
inherited
withDomainList(List<T> newDomain) → BandScale<T>
Creates a new band scale with the given domain list.

Operators

operator ==(Object other) → bool
The equality operator.
inherited