Struct Gradient 

pub struct Gradient {
    pub geometry: Geometry,
    pub stops: Arc<[(f64, Color)]>,
    pub space: GradientSpace,
    pub units: GradientUnits,
    pub extend: GradientExtend,
}

Shared gradient description retained by paint and validated before preparation.

Fields

geometry: Geometry

Finite, nondegenerate shape of the gradient coordinate field.

stops: Arc<[(f64, Color)]>

Two to 64 ordered stops including positions zero and one; equal positions make hard stops.

space: GradientSpace

Straight-color interpolation space; sampled output is linear premultiplied RGBA.

units: GradientUnits

Whether geometry uses local logical units or normalized shape bounds.

extend: GradientExtend

Coordinate policy before interpolation between the stop colors.

Implementations

impl Gradient

pub fn validate(&self) -> Result<(), ValidationError>

Checks ordered endpoint-inclusive stops and finite, nondegenerate geometry.

pub fn position( &self, point: Point, bounds: Rect, ) -> Result<f64, ValidationError>

Converts a local point to an extended normalized coordinate. Object-bounds units require finite positive width and height; validate geometry first.

pub fn color(&self, position: f64) -> [f64; 4]

Interpolates validated stops to linear-premultiplied RGBA at a normalized position. Call Self::validate first and apply coordinate extension before sampling.

Trait Implementations

impl Clone for Gradient

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Gradient

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

Formats the value using the given formatter.

impl PartialEq for Gradient

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Gradient