Struct picto::color::Alpha [−][src]
pub struct Alpha<C, T> where
T: Float, {
pub color: C,
pub alpha: T,
}
Expand description
An alpha component wrapper for colors.
Fields
color: C
The color.
alpha: T
The transparency component. 0.0 is fully transparent and 1.0 is fully opaque.
Implementations
Rgba
implementations.
Linear RGB with transparency.
Linear RGB with transparency from 8 bit values.
Linear RGB from a linear pixel value.
Convert to a linear RGB pixel. Rgb
is already assumed to be linear,
so the components will just be clamped to [0.0, 1.0] before conversion.
use palette::Rgba;
let c = Rgba::new(0.5, 0.3, 0.1, 0.5);
assert_eq!((c.red, c.green, c.blue, c.alpha), c.to_pixel());
assert_eq!((0.5, 0.3, 0.1, 0.5), c.to_pixel());
Lumaa
implementations.
Yxya
implementations.
Xyza
implementations.
Laba
implementations.
Lcha
implementations.
Hsva
implementations.
Hsla
implementations.
Hwba
implementations.
Trait Implementations
type Epsilon = <T as ApproxEq>::Epsilon
type Epsilon = <T as ApproxEq>::Epsilon
Used for specifying relative comparisons.
The default tolerance to use when testing values that are close together. Read more
The default relative tolerance for testing values that are far-apart. Read more
The default ULPs to tolerate when testing values that are far-apart. Read more
A test for equality that uses a relative comparison if the values are far apart.
A test for equality that uses units in the last place (ULP) if the values are far apart.
fn relative_ne(
&self,
other: &Self,
epsilon: Self::Epsilon,
max_relative: Self::Epsilon
) -> bool
fn relative_ne(
&self,
other: &Self,
epsilon: Self::Epsilon,
max_relative: Self::Epsilon
) -> bool
The inverse of ApproxEq::relative_eq
.
Convert the color to premultiplied alpha.
Convert the color from premultiplied alpha.
fn blend<F>(self, destination: Self, blend_function: F) -> Self where
F: BlendFunction<Self::Color>,
fn blend<F>(self, destination: Self, blend_function: F) -> Self where
F: BlendFunction<Self::Color>,
Blend self, as the source color, with destination
, using
blend_function
. Anything that implements BlendFunction
is
acceptable, including functions and closures. Read more
Place self
over other
. This is the good old common alpha
composition equation. Read more
Results in the parts of self
that overlaps the visible parts of
other
. Read more
Results in the parts of self
that lies outside the visible parts of
other
. Read more
Add self
and other
. This uses the alpha component to regulate the
effect, so it’s not just plain component wise addition. Read more
Multiply self
with other
. This uses the alpha component to regulate
the effect, so it’s not just plain component wise multiplication. Read more
Multiply self
or other
if other is dark, or screen them if other
is light. This results in an S curve. Read more
Lighten other
to reflect self
. Results in other
if self
is
black. Read more
Darken other
to reflect self
. Results in other
if self
is
white. Read more
Multiply self
or other
if other is dark, or screen them if self
is light. This is similar to overlay
, but depends on self
instead
of other
. Read more
Lighten other
if self
is light, or darken other
as if it’s burned
if self
is dark. The effect is increased if the components of self
is further from 0.5. Read more
Return the absolute difference between self
and other
. It’s
basically abs(self - other)
, but regulated by the alpha component. Read more
type Scalar = T
type Scalar = T
The scalar type for color components.
pub fn component_wise<F>(&self, other: &Alpha<C, T>, f: F) -> Alpha<C, T> where
F: FnMut(T, T) -> T,
pub fn component_wise<F>(&self, other: &Alpha<C, T>, f: F) -> Alpha<C, T> where
F: FnMut(T, T) -> T,
Perform a binary operation on this and an other color.
Perform a unary operation on this color.
Return a new color where the components has been clamped to the nearest valid values. Read more
Clamp the color’s components to the nearest valid values.
Auto Trait Implementations
impl<C, T> RefUnwindSafe for Alpha<C, T> where
C: RefUnwindSafe,
T: RefUnwindSafe,
impl<C, T> UnwindSafe for Alpha<C, T> where
C: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more