Struct Gradient 

pub struct Gradient {
    pub ramp: Ramp,
    pub fill: bool,
    pub shape: Shape,
    pub ellipse: [f64; 3],
    pub start: (f64, f64),
    pub end: (f64, f64),
}

A gradient or fill layer (Layer.GradationFillInfo).

Fields

ramp: Ramp

The colours.

fill: bool

A fill layer (べた塗り): the first stop’s colour everywhere.

shape: Shape

Linear or circular.

ellipse: [f64; 3]

Ellipse width and height (pixels) and rotation (degrees).

start: (f64, f64)

Start point in layer pixels.

end: (f64, f64)

End point in layer pixels.

Implementations

impl Gradient

pub fn parse(data: &[u8]) -> Result<Self>

Parses GradationFillInfo.

pub fn position(&self, x: f64, y: f64) -> f64

Position (0..1, clamped) of the canvas point (x, y).

pub fn is_approximate(&self) -> bool

True when CSP’s look is only approximated (the 知覚的 mix).

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

Straight RGBA (0..1) at position t.

pub fn draw(&self, width: u32, height: u32, scale: f64) -> RgbaImage

The gradient at scale into a width × height image (pixel centres).

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