Struct PreAlpha

#[repr(C)]
pub struct PreAlpha<C>
where
    C: Premultiply,
{
    pub color: C,
    pub alpha: <C as Premultiply>::Scalar,
}

Premultiplied alpha wrapper.

Premultiplied, or alpha masked, or associated alpha colors have had their component values multiplied with their alpha value. They are commonly used in composition algorithms and as output from computer generated graphics. It may also be preferred when interpolating between colors and in other image manipulation operations, such as blurring or resizing images.

use palette::{LinSrgb, LinSrgba};
use palette::blend::{Blend, PreAlpha};

let a = PreAlpha::from(LinSrgba::new(0.4, 0.5, 0.5, 0.3));
let b = PreAlpha::from(LinSrgba::new(0.3, 0.8, 0.4, 0.4));
let c = PreAlpha::from(LinSrgba::new(0.7, 0.1, 0.8, 0.8));

let res: LinSrgba = a.screen(b).overlay(c).into();

Note that converting to and from premultiplied alpha will cause the alpha component to be clamped to [0.0, 1.0], and fully transparent colors will become black.

Fields

color: C

The premultiplied color components (original.color * original.alpha).

alpha: <C as Premultiply>::Scalar

The transparency component. 0.0 is fully transparent and 1.0 is fully opaque.

Implementations

impl<C> PreAlpha<C>

where C: Premultiply,

pub fn new(color: C, alpha: <C as Premultiply>::Scalar) -> PreAlpha<C>

Alpha mask color with alpha.

pub fn new_opaque(color: C) -> PreAlpha<C>

where <C as Premultiply>::Scalar: Stimulus,

Create an opaque alpha masked color.

pub fn unpremultiply(self) -> Alpha<C, <C as Premultiply>::Scalar>

Alpha unmask the color.

Trait Implementations

impl<C, T> AbsDiffEq for PreAlpha<C>

where C: AbsDiffEq<Epsilon = <T as AbsDiffEq>::Epsilon> + Premultiply<Scalar = T>, T: AbsDiffEq, <T as AbsDiffEq>::Epsilon: Clone,

type Epsilon = <T as AbsDiffEq>::Epsilon

Used for specifying relative comparisons.

fn default_epsilon() -> <PreAlpha<C> as AbsDiffEq>::Epsilon

The default tolerance to use when testing values that are close together.

fn abs_diff_eq( &self, other: &PreAlpha<C>, epsilon: <PreAlpha<C> as AbsDiffEq>::Epsilon, ) -> bool

A test for equality that uses the absolute difference to compute the approximate equality of two numbers.

fn abs_diff_ne(&self, other: &Rhs, epsilon: Self::Epsilon) -> bool

The inverse of AbsDiffEq::abs_diff_eq.

impl<C> Add<f32> for PreAlpha<C>

where C: Premultiply<Scalar = f32> + Add<f32, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the + operator.

fn add(self, c: f32) -> <PreAlpha<C> as Add<f32>>::Output

Performs the + operation.

impl<C> Add<f64> for PreAlpha<C>

where C: Premultiply<Scalar = f64> + Add<f64, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the + operator.

fn add(self, c: f64) -> <PreAlpha<C> as Add<f64>>::Output

Performs the + operation.

impl<C> Add for PreAlpha<C>

where C: Premultiply + Add<Output = C>, <C as Premultiply>::Scalar: Add<Output = <C as Premultiply>::Scalar>,

type Output = PreAlpha<C>

The resulting type after applying the + operator.

fn add(self, other: PreAlpha<C>) -> <PreAlpha<C> as Add>::Output

Performs the + operation.

impl<C> AddAssign<f32> for PreAlpha<C>

where C: AddAssign<f32> + Premultiply<Scalar = f32>,

fn add_assign(&mut self, c: f32)

Performs the += operation.

impl<C> AddAssign<f64> for PreAlpha<C>

where C: AddAssign<f64> + Premultiply<Scalar = f64>,

fn add_assign(&mut self, c: f64)

Performs the += operation.

impl<C> AddAssign for PreAlpha<C>

where C: AddAssign + Premultiply, <C as Premultiply>::Scalar: AddAssign + Real,

fn add_assign(&mut self, other: PreAlpha<C>)

Performs the += operation.

impl<C, T> ArrayCast for PreAlpha<C>

where C: ArrayCast + Premultiply<Scalar = T>, <C as ArrayCast>::Array: NextArray + ArrayExt<Item = T>,

type Array = <<C as ArrayCast>::Array as NextArray>::Next

The output type of a cast to an array.

impl<C, const N: usize> AsMut<[<C as Premultiply>::Scalar]> for PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn as_mut(&mut self) -> &mut [<C as Premultiply>::Scalar]

Converts this type into a mutable reference of the (usually inferred) input type.

impl<C, const N: usize> AsMut<[<C as Premultiply>::Scalar; N]> for PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn as_mut(&mut self) -> &mut [<C as Premultiply>::Scalar; N]

Converts this type into a mutable reference of the (usually inferred) input type.

impl<C, const N: usize> AsRef<[<C as Premultiply>::Scalar]> for PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn as_ref(&self) -> &[<C as Premultiply>::Scalar]

Converts this type into a shared reference of the (usually inferred) input type.

impl<C, const N: usize> AsRef<[<C as Premultiply>::Scalar; N]> for PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn as_ref(&self) -> &[<C as Premultiply>::Scalar; N]

Converts this type into a shared reference of the (usually inferred) input type.

impl<C, T, const N: usize> Blend for PreAlpha<C>

where C: Premultiply<Scalar = T> + StimulusColor + ArrayCast<Array = [T; N]> + Clone, T: Real + Zero + One + MinMax + Clamp + Sqrt + Abs + Arithmetics + PartialCmp + Clone, <T as HasBoolMask>::Mask: LazySelect<T>,

fn multiply(self, other: PreAlpha<C>) -> PreAlpha<C>

Multiply self with other. This uses the alpha component to regulate the effect, so it’s not just plain component wise multiplication.

fn screen(self, other: PreAlpha<C>) -> PreAlpha<C>

Make a color which is at least as light as self or other.

fn overlay(self, other: PreAlpha<C>) -> PreAlpha<C>

Multiply self or other if other is dark, or screen them if other is light. This results in an S curve.

fn darken(self, other: PreAlpha<C>) -> PreAlpha<C>

Return the darkest parts of self and other.

fn lighten(self, other: PreAlpha<C>) -> PreAlpha<C>

Return the lightest parts of self and other.

fn dodge(self, other: PreAlpha<C>) -> PreAlpha<C>

Lighten other to reflect self. Results in other if self is black.

fn burn(self, other: PreAlpha<C>) -> PreAlpha<C>

Darken other to reflect self. Results in other if self is white.

fn hard_light(self, other: PreAlpha<C>) -> PreAlpha<C>

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.

fn soft_light(self, other: PreAlpha<C>) -> PreAlpha<C>

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.

fn difference(self, other: PreAlpha<C>) -> PreAlpha<C>

Return the absolute difference between self and other. It’s basically abs(self - other), but regulated by the alpha component.

fn exclusion(self, other: PreAlpha<C>) -> PreAlpha<C>

Similar to difference, but appears to result in a lower contrast. other is inverted if self is white, and preserved if self is black.

impl<C> BlendWith for PreAlpha<C>

where C: Premultiply,

type Color = C

The base color type of Self.

fn blend_with<F>(self, other: PreAlpha<C>, blend_function: F) -> PreAlpha<C>

where F: BlendFunction<<PreAlpha<C> as BlendWith>::Color>,

Blend self, as the source color, with destination, using blend_function. Anything that implements BlendFunction is acceptable, including functions and closures.

impl<C> Clone for PreAlpha<C>

where C: Clone + Premultiply, <C as Premultiply>::Scalar: Clone,

fn clone(&self) -> PreAlpha<C>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C, T, const N: usize> Compose for PreAlpha<C>

where C: ArrayCast<Array = [T; N]> + Premultiply<Scalar = T>, T: Real + Zero + One + Arithmetics + Clamp + Clone,

fn over(self, other: PreAlpha<C>) -> PreAlpha<C>

Place self over other. This is the good old common alpha composition equation.

fn inside(self, other: PreAlpha<C>) -> PreAlpha<C>

Results in the parts of self that overlaps the visible parts of other.

fn outside(self, other: PreAlpha<C>) -> PreAlpha<C>

Results in the parts of self that lies outside the visible parts of other.

fn atop(self, other: PreAlpha<C>) -> PreAlpha<C>

Place self over only the visible parts of other.

fn xor(self, other: PreAlpha<C>) -> PreAlpha<C>

Results in either self or other, where they do not overlap.

fn plus(self, other: PreAlpha<C>) -> PreAlpha<C>

Add self and other. This uses the alpha component to regulate the effect, so it’s not just plain component wise addition.

impl<C> Debug for PreAlpha<C>

where C: Debug + Premultiply, <C as Premultiply>::Scalar: Debug,

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

Formats the value using the given formatter.

impl<C> Default for PreAlpha<C>

where C: Default + Premultiply, <C as Premultiply>::Scalar: Stimulus,

fn default() -> PreAlpha<C>

Returns the “default value” for a type.

impl<C> DerefMut for PreAlpha<C>

where C: Premultiply,

fn deref_mut(&mut self) -> &mut C

Mutably dereferences the value.

impl<'de, C> Deserialize<'de> for PreAlpha<C>

where C: Premultiply + Deserialize<'de>, <C as Premultiply>::Scalar: Deserialize<'de>,

fn deserialize<D>( deserializer: D, ) -> Result<PreAlpha<C>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<C> Div<f32> for PreAlpha<C>

where C: Premultiply<Scalar = f32> + Div<f32, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the / operator.

fn div(self, c: f32) -> <PreAlpha<C> as Div<f32>>::Output

Performs the / operation.

impl<C> Div<f64> for PreAlpha<C>

where C: Premultiply<Scalar = f64> + Div<f64, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the / operator.

fn div(self, c: f64) -> <PreAlpha<C> as Div<f64>>::Output

Performs the / operation.

impl<C> Div for PreAlpha<C>

where C: Premultiply + Div<Output = C>, <C as Premultiply>::Scalar: Div<Output = <C as Premultiply>::Scalar>,

type Output = PreAlpha<C>

The resulting type after applying the / operator.

fn div(self, other: PreAlpha<C>) -> <PreAlpha<C> as Div>::Output

Performs the / operation.

impl<C> DivAssign<f32> for PreAlpha<C>

where C: DivAssign<f32> + Premultiply<Scalar = f32>,

fn div_assign(&mut self, c: f32)

Performs the /= operation.

impl<C> DivAssign<f64> for PreAlpha<C>

where C: DivAssign<f64> + Premultiply<Scalar = f64>,

fn div_assign(&mut self, c: f64)

Performs the /= operation.

impl<C> DivAssign for PreAlpha<C>

where C: DivAssign + Premultiply, <C as Premultiply>::Scalar: DivAssign + Real,

fn div_assign(&mut self, other: PreAlpha<C>)

Performs the /= operation.

impl<'a, C, const N: usize> From<&'a [<C as Premultiply>::Scalar; N]> for &'a PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(array: &'a [<C as Premultiply>::Scalar; N]) -> &'a PreAlpha<C>

Converts to this type from the input type.

impl<'a, C, const N: usize> From<&'a PreAlpha<C>> for &'a [<C as Premultiply>::Scalar]

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(color: &'a PreAlpha<C>) -> &'a [<C as Premultiply>::Scalar]

Converts to this type from the input type.

impl<'a, C, const N: usize> From<&'a mut [<C as Premultiply>::Scalar; N]> for &'a mut PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(array: &'a mut [<C as Premultiply>::Scalar; N]) -> &'a mut PreAlpha<C>

Converts to this type from the input type.

impl<'a, C, const N: usize> From<&'a mut PreAlpha<C>> for &'a mut [<C as Premultiply>::Scalar]

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(color: &'a mut PreAlpha<C>) -> &'a mut [<C as Premultiply>::Scalar]

Converts to this type from the input type.

impl<C, const N: usize> From<[<C as Premultiply>::Scalar; N]> for PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(array: [<C as Premultiply>::Scalar; N]) -> PreAlpha<C>

Converts to this type from the input type.

impl<T, V, const N: usize> From<[PreAlpha<Cam16UcsJab<T>>; N]> for PreAlpha<Cam16UcsJab<V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Cam16UcsJab<T>: Premultiply<Scalar = T>, Cam16UcsJab<V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Cam16UcsJab<T>>; N]) -> PreAlpha<Cam16UcsJab<V>>

Converts to this type from the input type.

impl<Wp, T, V, const N: usize> From<[PreAlpha<Lab<Wp, T>>; N]> for PreAlpha<Lab<Wp, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Lab<Wp, T>: Premultiply<Scalar = T>, Lab<Wp, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Lab<Wp, T>>; N]) -> PreAlpha<Lab<Wp, V>>

Converts to this type from the input type.

impl<S, T, V, const N: usize> From<[PreAlpha<Luma<S, T>>; N]> for PreAlpha<Luma<S, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Luma<S, T>: Premultiply<Scalar = T>, Luma<S, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Luma<S, T>>; N]) -> PreAlpha<Luma<S, V>>

Converts to this type from the input type.

impl<Wp, T, V, const N: usize> From<[PreAlpha<Luv<Wp, T>>; N]> for PreAlpha<Luv<Wp, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Luv<Wp, T>: Premultiply<Scalar = T>, Luv<Wp, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Luv<Wp, T>>; N]) -> PreAlpha<Luv<Wp, V>>

Converts to this type from the input type.

impl<T, V, const N: usize> From<[PreAlpha<Oklab<T>>; N]> for PreAlpha<Oklab<V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Oklab<T>: Premultiply<Scalar = T>, Oklab<V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Oklab<T>>; N]) -> PreAlpha<Oklab<V>>

Converts to this type from the input type.

impl<S, T, V, const N: usize> From<[PreAlpha<Rgb<S, T>>; N]> for PreAlpha<Rgb<S, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Rgb<S, T>: Premultiply<Scalar = T>, Rgb<S, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Rgb<S, T>>; N]) -> PreAlpha<Rgb<S, V>>

Converts to this type from the input type.

impl<Wp, T, V, const N: usize> From<[PreAlpha<Xyz<Wp, T>>; N]> for PreAlpha<Xyz<Wp, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Xyz<Wp, T>: Premultiply<Scalar = T>, Xyz<Wp, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Xyz<Wp, T>>; N]) -> PreAlpha<Xyz<Wp, V>>

Converts to this type from the input type.

impl<Wp, T, V, const N: usize> From<[PreAlpha<Yxy<Wp, T>>; N]> for PreAlpha<Yxy<Wp, V>>

where [T; N]: Default, V: FromScalarArray<N, Scalar = T>, Yxy<Wp, T>: Premultiply<Scalar = T>, Yxy<Wp, V>: Premultiply<Scalar = V>,

fn from(colors: [PreAlpha<Yxy<Wp, T>>; N]) -> PreAlpha<Yxy<Wp, V>>

Converts to this type from the input type.

impl<C> From<Alpha<C, <C as Premultiply>::Scalar>> for PreAlpha<C>

where C: Premultiply,

fn from(color: Alpha<C, <C as Premultiply>::Scalar>) -> PreAlpha<C>

Converts to this type from the input type.

impl<C, const N: usize> From<Box<[<C as Premultiply>::Scalar; N]>> for Box<PreAlpha<C>>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

fn from(array: Box<[<C as Premultiply>::Scalar; N]>) -> Box<PreAlpha<C>>

Converts to this type from the input type.

impl<C> From<C> for PreAlpha<C>

where C: Premultiply, <C as Premultiply>::Scalar: Stimulus,

fn from(color: C) -> PreAlpha<C>

Converts to this type from the input type.

impl<C> From<PreAlpha<C>> for Alpha<C, <C as Premultiply>::Scalar>

where C: Premultiply,

fn from(color: PreAlpha<C>) -> Alpha<C, <C as Premultiply>::Scalar>

Converts to this type from the input type.

impl<T> From<PreAlpha<Cam16UcsJab<T>>> for Cam16UcsJab<T>

where Cam16UcsJab<T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Cam16UcsJab<T>>) -> Cam16UcsJab<T>

Converts to this type from the input type.

impl<Wp, T> From<PreAlpha<Lab<Wp, T>>> for Lab<Wp, T>

where Lab<Wp, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Lab<Wp, T>>) -> Lab<Wp, T>

Converts to this type from the input type.

impl<S, T> From<PreAlpha<Luma<S, T>>> for Luma<S, T>

where Luma<S, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Luma<S, T>>) -> Luma<S, T>

Converts to this type from the input type.

impl<Wp, T> From<PreAlpha<Luv<Wp, T>>> for Luv<Wp, T>

where Luv<Wp, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Luv<Wp, T>>) -> Luv<Wp, T>

Converts to this type from the input type.

impl<T> From<PreAlpha<Oklab<T>>> for Oklab<T>

where Oklab<T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Oklab<T>>) -> Oklab<T>

Converts to this type from the input type.

impl<S, T> From<PreAlpha<Rgb<S, T>>> for Rgb<S, T>

where Rgb<S, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Rgb<S, T>>) -> Rgb<S, T>

Converts to this type from the input type.

impl<Wp, T> From<PreAlpha<Xyz<Wp, T>>> for Xyz<Wp, T>

where Xyz<Wp, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Xyz<Wp, T>>) -> Xyz<Wp, T>

Converts to this type from the input type.

impl<Wp, T> From<PreAlpha<Yxy<Wp, T>>> for Yxy<Wp, T>

where Yxy<Wp, T>: Premultiply<Scalar = T>,

fn from(premultiplied: PreAlpha<Yxy<Wp, T>>) -> Yxy<Wp, T>

Converts to this type from the input type.

impl<C, T> Mix for PreAlpha<C>

where C: Mix<Scalar = T> + Premultiply<Scalar = T>, T: Real + Zero + One + Clamp + Arithmetics + Clone,

type Scalar = T

The type of the mixing factor.

fn mix(self, other: PreAlpha<C>, factor: T) -> PreAlpha<C>

Mix the color with an other color, by factor.

impl<C, T> MixAssign for PreAlpha<C>

where C: MixAssign<Scalar = T> + Premultiply<Scalar = T>, T: Real + Zero + One + Clamp + Arithmetics + AddAssign + Clone,

type Scalar = T

The type of the mixing factor.

fn mix_assign(&mut self, other: PreAlpha<C>, factor: T)

Mix the color with an other color, by factor.

impl<C> Mul<f32> for PreAlpha<C>

where C: Premultiply<Scalar = f32> + Mul<f32, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the * operator.

fn mul(self, c: f32) -> <PreAlpha<C> as Mul<f32>>::Output

Performs the * operation.

impl<C> Mul<f64> for PreAlpha<C>

where C: Premultiply<Scalar = f64> + Mul<f64, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the * operator.

fn mul(self, c: f64) -> <PreAlpha<C> as Mul<f64>>::Output

Performs the * operation.

impl<C> Mul for PreAlpha<C>

where C: Premultiply + Mul<Output = C>, <C as Premultiply>::Scalar: Mul<Output = <C as Premultiply>::Scalar>,

type Output = PreAlpha<C>

The resulting type after applying the * operator.

fn mul(self, other: PreAlpha<C>) -> <PreAlpha<C> as Mul>::Output

Performs the * operation.

impl<C> MulAssign<f32> for PreAlpha<C>

where C: MulAssign<f32> + Premultiply<Scalar = f32>,

fn mul_assign(&mut self, c: f32)

Performs the *= operation.

impl<C> MulAssign<f64> for PreAlpha<C>

where C: MulAssign<f64> + Premultiply<Scalar = f64>,

fn mul_assign(&mut self, c: f64)

Performs the *= operation.

impl<C> MulAssign for PreAlpha<C>

where C: MulAssign + Premultiply, <C as Premultiply>::Scalar: MulAssign + Real,

fn mul_assign(&mut self, other: PreAlpha<C>)

Performs the *= operation.

impl<C> PartialEq for PreAlpha<C>

where C: PartialEq + Premultiply, <C as Premultiply>::Scalar: PartialEq,

fn eq(&self, other: &PreAlpha<C>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<C, T> RelativeEq for PreAlpha<C>

where C: RelativeEq<Epsilon = <T as AbsDiffEq>::Epsilon> + Premultiply<Scalar = T>, T: RelativeEq, <T as AbsDiffEq>::Epsilon: Clone,

fn default_max_relative() -> <PreAlpha<C> as AbsDiffEq>::Epsilon

The default relative tolerance for testing values that are far-apart.

fn relative_eq( &self, other: &PreAlpha<C>, epsilon: <PreAlpha<C> as AbsDiffEq>::Epsilon, max_relative: <PreAlpha<C> as AbsDiffEq>::Epsilon, ) -> bool

A test for equality that uses a relative comparison if the values are far apart.

fn relative_ne( &self, other: &Rhs, epsilon: Self::Epsilon, max_relative: Self::Epsilon, ) -> bool

The inverse of RelativeEq::relative_eq.

impl<C> Serialize for PreAlpha<C>

where C: Premultiply + Serialize, <C as Premultiply>::Scalar: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<C> Sub<f32> for PreAlpha<C>

where C: Premultiply<Scalar = f32> + Sub<f32, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the - operator.

fn sub(self, c: f32) -> <PreAlpha<C> as Sub<f32>>::Output

Performs the - operation.

impl<C> Sub<f64> for PreAlpha<C>

where C: Premultiply<Scalar = f64> + Sub<f64, Output = C>,

type Output = PreAlpha<C>

The resulting type after applying the - operator.

fn sub(self, c: f64) -> <PreAlpha<C> as Sub<f64>>::Output

Performs the - operation.

impl<C> Sub for PreAlpha<C>

where C: Premultiply + Sub<Output = C>, <C as Premultiply>::Scalar: Sub<Output = <C as Premultiply>::Scalar>,

type Output = PreAlpha<C>

The resulting type after applying the - operator.

fn sub(self, other: PreAlpha<C>) -> <PreAlpha<C> as Sub>::Output

Performs the - operation.

impl<C> SubAssign<f32> for PreAlpha<C>

where C: SubAssign<f32> + Premultiply<Scalar = f32>,

fn sub_assign(&mut self, c: f32)

Performs the -= operation.

impl<C> SubAssign<f64> for PreAlpha<C>

where C: SubAssign<f64> + Premultiply<Scalar = f64>,

fn sub_assign(&mut self, c: f64)

Performs the -= operation.

impl<C> SubAssign for PreAlpha<C>

where C: SubAssign + Premultiply, <C as Premultiply>::Scalar: SubAssign + Real,

fn sub_assign(&mut self, other: PreAlpha<C>)

Performs the -= operation.

impl<'a, C, const N: usize> TryFrom<&'a [<C as Premultiply>::Scalar]> for &'a PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

type Error = <&'a [<C as Premultiply>::Scalar; N] as TryFrom<&'a [<C as Premultiply>::Scalar]>>::Error

The type returned in the event of a conversion error.

fn try_from( slice: &'a [<C as Premultiply>::Scalar], ) -> Result<&'a PreAlpha<C>, <&'a PreAlpha<C> as TryFrom<&'a [<C as Premultiply>::Scalar]>>::Error>

Performs the conversion.

impl<'a, C, const N: usize> TryFrom<&'a mut [<C as Premultiply>::Scalar]> for &'a mut PreAlpha<C>

where C: Premultiply, PreAlpha<C>: ArrayCast<Array = [<C as Premultiply>::Scalar; N]>,

type Error = <&'a mut [<C as Premultiply>::Scalar; N] as TryFrom<&'a mut [<C as Premultiply>::Scalar]>>::Error

The type returned in the event of a conversion error.

fn try_from( slice: &'a mut [<C as Premultiply>::Scalar], ) -> Result<&'a mut PreAlpha<C>, <&'a mut PreAlpha<C> as TryFrom<&'a mut [<C as Premultiply>::Scalar]>>::Error>

Performs the conversion.

impl<C, T> UlpsEq for PreAlpha<C>

where C: UlpsEq<Epsilon = <T as AbsDiffEq>::Epsilon> + Premultiply<Scalar = T>, T: UlpsEq, <T as AbsDiffEq>::Epsilon: Clone,

fn default_max_ulps() -> u32

The default ULPs to tolerate when testing values that are far-apart.

fn ulps_eq( &self, other: &PreAlpha<C>, epsilon: <PreAlpha<C> as AbsDiffEq>::Epsilon, max_ulps: u32, ) -> bool

A test for equality that uses units in the last place (ULP) if the values are far apart.

fn ulps_ne(&self, other: &Rhs, epsilon: Self::Epsilon, max_ulps: u32) -> bool

The inverse of UlpsEq::ulps_eq.

impl<C> Deref for PreAlpha<C>

where C: Premultiply,

type Target = C

The resulting type after dereferencing.

fn deref(&self) -> &C

Dereferences the value.

impl<C> Copy for PreAlpha<C>

where C: Copy + Premultiply, <C as Premultiply>::Scalar: Copy,

impl<C> Eq for PreAlpha<C>

where C: Eq + Premultiply, <C as Premultiply>::Scalar: Eq,