Struct palette::Lch

#[repr(C)]
pub struct Lch<Wp = D65, T = f32> where
    T: FloatComponent,
    Wp: WhitePoint,  {
    pub l: T,
    pub chroma: T,
    pub hue: LabHue<T>,
    pub white_point: PhantomData<Wp>,
}

CIE L*C*h°, a polar version of CIE L*a*b*.

L*C*h° shares its range and perceptual uniformity with L*a*b*, but it’s a cylindrical color space, like HSL and HSV. This gives it the same ability to directly change the hue and colorfulness of a color, while preserving other visual aspects.

Fields

l: T

L* is the lightness of the color. 0.0 gives absolute black and 100.0 gives the brightest white.

chroma: T

C* is the colorfulness of the color. It’s similar to saturation. 0.0 gives gray scale colors, and numbers around 128-181 gives fully saturated colors. The upper limit of 128 should include the whole L*a*b* space and some more.

hue: LabHue<T>

The hue of the color, in degrees. Decides if it’s red, blue, purple, etc.

white_point: PhantomData<Wp>

The white point associated with the color’s illuminant and observer. D65 for 2 degree observer is used by default.

Implementations

impl<T> Lch<D65, T> where
    T: FloatComponent, 

pub fn new<H: Into<LabHue<T>>>(l: T, chroma: T, hue: H) -> Lch<D65, T>

CIE L*C*h° with white point D65.

impl<Wp, T> Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

pub fn with_wp<H: Into<LabHue<T>>>(l: T, chroma: T, hue: H) -> Lch<Wp, T>

CIE L*C*h°.

pub fn into_components(self) -> (T, T, LabHue<T>)

Convert to a (L\*, C\*, h°) tuple.

pub fn from_components<H: Into<LabHue<T>>>((l, chroma, hue): (T, T, H)) -> Self

Convert from a (L\*, C\*, h°) tuple.

pub fn min_l() -> T

Return the l value minimum.

pub fn max_l() -> T

Return the l value maximum.

pub fn min_chroma() -> T

Return the chroma value minimum.

pub fn max_chroma() -> T

Return the chroma value maximum. This value does not cover the entire color space, but covers enough to be practical for downsampling to smaller color spaces like sRGB.

pub fn max_extended_chroma() -> T

Return the chroma extended maximum value. This value covers the entire color space and is included for completeness, but the additional range should be unnecessary for most use cases.

Trait Implementations

impl<Wp, T> AbsDiffEq<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + AbsDiffEq,
    T::Epsilon: Copy + FloatComponent,
    Wp: WhitePoint + PartialEq, 

type Epsilon = <T as AbsDiffEq<T>>::Epsilon

Used for specifying relative comparisons.

fn default_epsilon() -> Self::Epsilon

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

fn abs_diff_eq(&self, other: &Self, epsilon: T::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: &Self, epsilon: T::Epsilon) -> bool

The inverse of AbsDiffEq::abs_diff_eq.

impl<Wp, T> Add<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Output = Lch<Wp, T>

The resulting type after applying the + operator.

fn add(self, other: Lch<Wp, T>) -> Self::Output

Performs the + operation.

impl<Wp, T> Add<T> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Output = Lch<Wp, T>

The resulting type after applying the + operator.

fn add(self, c: T) -> Self::Output

Performs the + operation.

impl<Wp, T> AddAssign<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + AddAssign,
    Wp: WhitePoint, 

fn add_assign(&mut self, other: Lch<Wp, T>)

Performs the += operation.

impl<Wp, T> AddAssign<T> for Lch<Wp, T> where
    T: FloatComponent + AddAssign,
    Wp: WhitePoint, 

fn add_assign(&mut self, c: T)

Performs the += operation.

impl<Wp, T, P> AsMut<P> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    P: RawPixel<T> + ?Sized, 

fn as_mut(&mut self) -> &mut P

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

impl<Wp, T, P> AsRef<P> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    P: RawPixel<T> + ?Sized, 

fn as_ref(&self) -> &P

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

impl<Wp, T> Clamp for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

fn is_within_bounds(&self) -> bool

Check if the color’s components are within the expected clamped range bounds.

fn clamp(&self) -> Lch<Wp, T>

Return a new color where the components have been clamped to the nearest valid values.

fn clamp_self(&mut self)

Clamp the color’s components to the nearest valid values.

impl<Wp, T> Clone for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

fn clone(&self) -> Lch<Wp, T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Wp, T> ColorDifference for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

CIEDE2000 distance metric for color difference.

type Scalar = T

The type of the calculated color difference

fn get_color_difference(&self, other: &Lch<Wp, T>) -> Self::Scalar

Return the difference or distance between two colors

impl<Wp: Debug, T: Debug> Debug for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

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

Formats the value using the given formatter.

impl<Wp, T> Default for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

fn default() -> Lch<Wp, T>

Returns the “default value” for a type.

impl<Wp: WhitePoint, T: FloatComponent, H: Into<LabHue<T>>> From<(T, T, H)> for Lch<Wp, T>

fn from(components: (T, T, H)) -> Self

Converts to this type from the input type.

impl<Wp, T, _C, _A> FromColorUnclamped<Alpha<_C, _A>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    _C: IntoColorUnclamped<Self>,
    _A: Component, 

fn from_color_unclamped(color: Alpha<_C, _A>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T, _S> FromColorUnclamped<Hsl<_S, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    _S: RgbStandard,
    _S::Space: RgbSpace<WhitePoint = Wp>, 

fn from_color_unclamped(color: Hsl<_S, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Hsluv<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Hsluv<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T, _S> FromColorUnclamped<Hsv<_S, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    _S: RgbStandard,
    _S::Space: RgbSpace<WhitePoint = Wp>, 

fn from_color_unclamped(color: Hsv<_S, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T, _S> FromColorUnclamped<Hwb<_S, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    _S: RgbStandard,
    _S::Space: RgbSpace<WhitePoint = Wp>, 

fn from_color_unclamped(color: Hwb<_S, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lab<Wp, T>> for Lch<Wp, T> where
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lab<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<S, T> FromColorUnclamped<Lch<<<S as RgbStandard>::Space as RgbSpace>::WhitePoint, T>> for Hsl<S, T> where
    T: FloatComponent,
    S: RgbStandard,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(
    color: Lch<<S::Space as RgbSpace>::WhitePoint, T>
) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<S, T> FromColorUnclamped<Lch<<<S as RgbStandard>::Space as RgbSpace>::WhitePoint, T>> for Hsv<S, T> where
    T: FloatComponent,
    S: RgbStandard,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(
    color: Lch<<S::Space as RgbSpace>::WhitePoint, T>
) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<S, T> FromColorUnclamped<Lch<<<S as RgbStandard>::Space as RgbSpace>::WhitePoint, T>> for Hwb<S, T> where
    T: FloatComponent,
    S: RgbStandard,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(
    color: Lch<<S::Space as RgbSpace>::WhitePoint, T>
) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<S: RgbStandard, T: Component> FromColorUnclamped<Lch<<<S as RgbStandard>::Space as RgbSpace>::WhitePoint, T>> for Rgb<S, T> where
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(
    color: Lch<<S::Space as RgbSpace>::WhitePoint, T>
) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<S, T> FromColorUnclamped<Lch<<S as LumaStandard>::WhitePoint, T>> for Luma<S, T> where
    T: Component,
    S: LumaStandard,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<S::WhitePoint, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<T> FromColorUnclamped<Lch<D65, T>> for Oklab<T> where
    T: FloatComponent,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<D65, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<T> FromColorUnclamped<Lch<D65, T>> for Oklch<T> where
    T: FloatComponent,
    T: FloatComponent,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<D65, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Hsluv<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Lab<Wp, T> where
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Lch<Wp, T> where
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Lchuv<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Luv<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Xyz<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lch<Wp, T>> for Yxy<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lch<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Lchuv<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Lchuv<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T, _S> FromColorUnclamped<Luma<_S, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    _S: LumaStandard<WhitePoint = Wp>, 

fn from_color_unclamped(color: Luma<_S, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Luv<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Luv<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Oklab<T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Xyz<Wp, T>: FromColorUnclamped<Oklab<T>>, 

fn from_color_unclamped(color: Oklab<T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Oklch<T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Xyz<Wp, T>: FromColorUnclamped<Oklch<T>>, 

fn from_color_unclamped(color: Oklch<T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T, _S> FromColorUnclamped<Rgb<_S, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    _S: RgbStandard,
    _S::Space: RgbSpace<WhitePoint = Wp>, 

fn from_color_unclamped(color: Rgb<_S, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Xyz<Wp, T>> for Lch<Wp, T> where
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Xyz<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> FromColorUnclamped<Yxy<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent,
    Wp: WhitePoint,
    T: FloatComponent, 

fn from_color_unclamped(color: Yxy<Wp, T>) -> Self

Convert from T. The resulting color might be invalid in its color space.

impl<Wp, T> GetHue for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Hue = LabHue<T>

The kind of hue unit this color space uses.

fn get_hue(&self) -> Option<LabHue<T>>

Calculate a hue if possible.

impl<Wp, T> Hue for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

fn with_hue<H: Into<Self::Hue>>(&self, hue: H) -> Lch<Wp, T>

Return a new copy of self, but with a specific hue.

fn shift_hue<H: Into<Self::Hue>>(&self, amount: H) -> Lch<Wp, T>

Return a new copy of self, but with the hue shifted by amount.

impl<Wp: WhitePoint, T: FloatComponent> Into<(T, T, LabHue<T>)> for Lch<Wp, T>

fn into(self) -> (T, T, LabHue<T>)

Converts this type into the (usually inferred) input type.

impl<Wp, T> Mix for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Scalar = T

The type of the mixing factor.

fn mix(&self, other: &Lch<Wp, T>, factor: T) -> Lch<Wp, T>

Mix the color with an other color, by factor.

impl<Wp, T> PartialEq<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + PartialEq,
    Wp: WhitePoint, 

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl<Wp, T> Pixel<T> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

const CHANNELS: usize = 3usize

The number of color channels.

fn as_raw<P: RawPixel<T> + ?Sized>(&self) -> &P

Cast as a reference to raw color components.

fn as_raw_mut<P: RawPixel<T> + ?Sized>(&mut self) -> &mut P

Cast as a mutable reference to raw color components.

fn into_raw<P: RawPixelSized<T>>(self) -> P

Convert into raw color components.

fn from_raw<P: RawPixel<T> + ?Sized>(pixel: &P) -> &Self

Cast from a reference to raw color components.

fn from_raw_mut<P: RawPixel<T> + ?Sized>(pixel: &mut P) -> &mut Self

Cast from a mutable reference to raw color components.

fn from_raw_slice(slice: &[T]) -> &[Self]

Cast a slice of raw color components to a slice of colors.

fn from_raw_slice_mut(slice: &mut [T]) -> &mut [Self]

Cast a mutable slice of raw color components to a mutable slice of colors.

fn into_raw_slice(slice: &[Self]) -> &[T]

Cast a slice of colors to a slice of raw color components.

fn into_raw_slice_mut(slice: &mut [Self]) -> &mut [T]

Cast a mutable slice of colors to a mutable slice of raw color components.

impl<Wp, T> RelativeContrast for Lch<Wp, T> where
    Wp: WhitePoint,
    T: FloatComponent, 

type Scalar = T

The type of the contrast ratio.

fn get_contrast_ratio(&self, other: &Self) -> T

Calculate the contrast ratio between two colors.

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

Verify the contrast between two colors satisfies SC 1.4.3. Contrast is at least 4.5:1 (Level AA).

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

Verify the contrast between two colors satisfies SC 1.4.3 for large text. Contrast is at least 3:1 (Level AA).

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

Verify the contrast between two colors satisfies SC 1.4.6. Contrast is at least 7:1 (Level AAA).

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

Verify the contrast between two colors satisfies SC 1.4.6 for large text. Contrast is at least 4.5:1 (Level AAA).

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

Verify the contrast between two colors satisfies SC 1.4.11 for graphical objects. Contrast is at least 3:1 (Level AA).

impl<Wp, T> RelativeEq<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + RelativeEq,
    T::Epsilon: Copy + FloatComponent,
    Wp: WhitePoint + PartialEq, 

fn default_max_relative() -> T::Epsilon

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

fn relative_eq(
    &self,
    other: &Self,
    epsilon: T::Epsilon,
    max_relative: T::Epsilon
) -> bool

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

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

The inverse of RelativeEq::relative_eq.

impl<Wp, T> Saturate for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Scalar = T

The type of the (de)saturation modifier.

fn saturate(&self, factor: T) -> Lch<Wp, T>

Scale the color towards the maximum saturation by factor, a value ranging from 0.0 to 1.0.

fn saturate_fixed(&self, amount: T) -> Lch<Wp, T>

Increase the saturation by amount, a value ranging from 0.0 to 1.0.

fn desaturate(&self, factor: Self::Scalar) -> Self

Scale the color towards the minimum saturation by factor, a value ranging from 0.0 to 1.0.

fn desaturate_fixed(&self, amount: Self::Scalar) -> Self

Increase the saturation by amount, a value ranging from 0.0 to 1.0.

impl<Wp, T> Shade for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Scalar = T

The type of the lighten/darken modifier.

fn lighten(&self, factor: T) -> Lch<Wp, T>

Scale the color towards the maximum lightness by factor, a value ranging from 0.0 to 1.0.

fn lighten_fixed(&self, amount: T) -> Lch<Wp, T>

Lighten the color by amount, a value ranging from 0.0 to 1.0.

fn darken(&self, factor: Self::Scalar) -> Self

Scale the color towards the minimum lightness by factor, a value ranging from 0.0 to 1.0.

fn darken_fixed(&self, amount: Self::Scalar) -> Self

Darken the color by amount, a value ranging from 0.0 to 1.0.

impl<Wp, T> Sub<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Output = Lch<Wp, T>

The resulting type after applying the - operator.

fn sub(self, other: Lch<Wp, T>) -> Self::Output

Performs the - operation.

impl<Wp, T> Sub<T> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

type Output = Lch<Wp, T>

The resulting type after applying the - operator.

fn sub(self, c: T) -> Self::Output

Performs the - operation.

impl<Wp, T> SubAssign<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + SubAssign,
    Wp: WhitePoint, 

fn sub_assign(&mut self, other: Lch<Wp, T>)

Performs the -= operation.

impl<Wp, T> SubAssign<T> for Lch<Wp, T> where
    T: FloatComponent + SubAssign,
    Wp: WhitePoint, 

fn sub_assign(&mut self, c: T)

Performs the -= operation.

impl<Wp, T> UlpsEq<Lch<Wp, T>> for Lch<Wp, T> where
    T: FloatComponent + UlpsEq,
    T::Epsilon: Copy + FloatComponent,
    Wp: WhitePoint + PartialEq, 

fn default_max_ulps() -> u32

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

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

The inverse of UlpsEq::ulps_eq.

impl<Wp, T, _A> WithAlpha<_A> for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint,
    _A: Component, 

type Color = Lch<Wp, T>

The opaque color type, without any transparency.

type WithAlpha = Alpha<Lch<Wp, T>, _A>

The color type with transparency applied.

fn with_alpha(self, alpha: _A) -> Self::WithAlpha

Transforms the color into a transparent color with the provided alpha value. If Self already has a transparency, it is overwritten.

fn without_alpha(self) -> Self::Color

Removes the transparency from the color. If Self::Color has an internal transparency field, that field will be set to A::max_intensity() to make it opaque.

fn split(self) -> (Self::Color, _A)

Splits the color into separate color and transparency values.

fn opaque(self) -> Self::WithAlpha

Transforms the color into a fully opaque color with a transparency field. If Self already has a transparency, it is overwritten.

fn transparent(self) -> Self::WithAlpha

Transforms the color into a fully transparent color. If Self already has a transparency, it is overwritten.

impl<Wp, T> Copy for Lch<Wp, T> where
    T: FloatComponent,
    Wp: WhitePoint, 

impl<Wp, T> Eq for Lch<Wp, T> where
    T: FloatComponent + Eq,
    Wp: WhitePoint,