Struct ColorScale 

pub struct ColorScale { /* private fields */ }

A continuous color scale mapping [0, 1] → Color.

Implementations

impl ColorScale

pub fn new(palette: Palette) -> Self

Create a color scale from a palette.

pub fn viridis() -> Self

Viridis color scale.

pub fn rdbu() -> Self

Red-Blue diverging scale.

pub fn map(&self, t: f32) -> Color

Map a value in [0, 1] to a color.

pub fn to_texture_data(&self, width: u32) -> Vec<u8>

Generate texture data (RGBA8 sRGB) for GPU 1D lookup.

Returns width × 4 bytes of sRGB-encoded RGBA.

Trait Implementations

impl Clone for ColorScale

fn clone(&self) -> ColorScale

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColorScale

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.