Struct ScaleLinear 

pub struct ScaleLinear { /* private fields */ }

Maps a continuous domain to a continuous range via linear interpolation. Equivalent to D3’s scaleLinear().

Implementations

impl ScaleLinear

pub fn new(domain: (f64, f64), range: (f64, f64)) -> Self

Create a new linear scale with the given domain and range.

pub fn map(&self, value: f64) -> f64

Map a domain value to a range value using linear interpolation.

pub fn invert(&self, value: f64) -> f64

Inverse mapping: range value back to domain value.

pub fn ticks(&self, count: usize) -> Vec<f64>

Generate approximately count nice tick values using the D3 “nice numbers” algorithm. Ticks are returned in the same order as the domain (descending if domain is reversed).

pub fn nice(self, count: usize) -> Self

Extend the domain to nice round numbers (like D3’s .nice()). Uses D3’s iterative algorithm (up to 10 passes) so the domain expands until the tick step stabilises — matching d3-scale’s linearish.nice(). Preserves domain direction (reversed domains stay reversed).

pub fn domain(&self) -> (f64, f64)

Get the domain extent.

pub fn range(&self) -> (f64, f64)

Get the range extent.

Trait Implementations

impl ContinuousScale for ScaleLinear

fn map(&self, value: f64) -> f64

Map a domain value to a range value.

fn domain(&self) -> (f64, f64)

Get the domain extent as (min, max).

fn range(&self) -> (f64, f64)

Get the range extent as (min, max).

fn ticks(&self, count: usize) -> Vec<f64>

Generate approximately count nice tick values within the domain.

fn clamp(&self, value: f64) -> f64

Clamp a value to domain bounds.