Enum ColorScale 

pub enum ColorScale {
    Viridis,
    Plasma,
    Inferno,
    Magma,
    Heat,
    Coolwarm,
    Greys,
    Custom(Arc<dyn Fn(f64) -> D3Color + Send + Sync>),
}

Color scale for 2D visualizations (heatmaps, contours).

Variants

Viridis

Viridis - perceptually uniform, colorblind-friendly (purple → yellow).

Plasma

Plasma - perceptually uniform (purple → orange → yellow).

Inferno

Inferno - perceptually uniform (black → purple → orange → yellow).

Magma

Magma - perceptually uniform (black → purple → orange → white).

Heat

Heat - diverging (blue → white → red).

Coolwarm

Coolwarm - diverging (cool blue → neutral → warm red).

Greys

Greys - sequential grayscale (white → black).

Custom(Arc<dyn Fn(f64) -> D3Color + Send + Sync>)

Custom color scale function.

Implementations

impl ColorScale

pub fn custom<F>(f: F) -> Self

where F: Fn(f64) -> D3Color + Send + Sync + 'static,

Create a custom color scale from a function.

The function should map values in [0, 1] to colors.

pub fn to_fn(&self) -> impl Fn(f64) -> D3Color + Send + Sync + Clone + 'static

Convert to a function that maps [0, 1] → D3Color.

pub fn map(&self, t: f64) -> D3Color

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

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.

impl Default for ColorScale

fn default() -> ColorScale

Returns the “default value” for a type.