Struct LCh

#[repr(C)]
pub struct LCh {
    pub l: f32,
    pub c: f32,
    pub h: f32,
}

Representing a color in cylindrical CIE LCh(uv) color space

Fields

l: f32

The L* value (achromatic luminance) of the colour in 0–100 range.

This is the same value as in the Luv object.

c: f32

The C*_uv value (chroma) of the colour.

Together with h_uv, it defines chromaticity of the colour. The typical values of the coordinate go from zero up to around 150 (but exact range for ‘valid’ colours depends on luminance and hue). Zero represents shade of grey.

h: f32

The h_uv value (hue) of the colour measured in radians.

Together with C*_uv, it defines chromaticity of the colour. The value represents an angle thus it wraps around τ. Typically, the value will be in the -π–π range. The value is undefined if C*_uv is zero.

Implementations

impl LCh

pub const fn new(l: f32, c: f32, h: f32) -> Self

pub fn from_luv(luv: Luv) -> Self

Converts Lab to LCh(uv)

pub fn from_lab(lab: Lab) -> Self

Converts Lab to LCh(ab)

pub fn from_xyz(xyz: Xyz) -> Self

Computes LCh(uv)

pub fn from_xyz_lab(xyz: Xyz) -> Self

Computes LCh(ab)

pub fn to_xyz(&self) -> Xyz

Converts LCh(uv) to Luv

pub fn to_xyz_lab(&self) -> Xyz

Converts LCh(ab) to Lab

pub fn to_luv(&self) -> Luv

pub fn to_lab(&self) -> Lab

impl LCh

pub fn euclidean_distance(&self, other: LCh) -> f32

impl LCh

pub const fn taxicab_distance(&self, other: Self) -> f32

impl LCh

pub fn sqrt(&self) -> LCh

pub fn cbrt(&self) -> LCh

Trait Implementations

impl Add<f32> for LCh

type Output = LCh

The resulting type after applying the + operator.

fn add(self, rhs: f32) -> Self::Output

Performs the + operation.

impl Add for LCh

type Output = LCh

The resulting type after applying the + operator.

fn add(self, rhs: LCh) -> LCh

Performs the + operation.

impl AddAssign<f32> for LCh

fn add_assign(&mut self, rhs: f32)

Performs the += operation.

impl AddAssign for LCh

fn add_assign(&mut self, rhs: LCh)

Performs the += operation.

impl Clone for LCh

fn clone(&self) -> LCh

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LCh

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

Formats the value using the given formatter.

impl Default for LCh

fn default() -> LCh

Returns the “default value” for a type.

impl Div<f32> for LCh

type Output = LCh

The resulting type after applying the / operator.

fn div(self, rhs: f32) -> Self::Output

Performs the / operation.

impl Div for LCh

type Output = LCh

The resulting type after applying the / operator.

fn div(self, rhs: LCh) -> LCh

Performs the / operation.

impl DivAssign<f32> for LCh

fn div_assign(&mut self, rhs: f32)

Performs the /= operation.

impl DivAssign for LCh

fn div_assign(&mut self, rhs: LCh)

Performs the /= operation.

impl Mul<f32> for LCh

type Output = LCh

The resulting type after applying the * operator.

fn mul(self, rhs: f32) -> Self::Output

Performs the * operation.

impl Mul for LCh

type Output = LCh

The resulting type after applying the * operator.

fn mul(self, rhs: LCh) -> LCh

Performs the * operation.

impl MulAssign<f32> for LCh

fn mul_assign(&mut self, rhs: f32)

Performs the *= operation.

impl MulAssign for LCh

fn mul_assign(&mut self, rhs: LCh)

Performs the *= operation.

impl Neg for LCh

type Output = LCh

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl PartialEq for LCh

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

Compares two colours ignoring chromaticity if L* is zero and hue if C* is zero. Hues which are τ apart are compared equal.

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 PartialOrd for LCh

fn partial_cmp(&self, other: &LCh) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Pow<LCh> for LCh

type Output = LCh

The result after applying the operator.

fn pow(self, rhs: LCh) -> Self::Output

Returns self to the power rhs.

impl Pow<f32> for LCh

type Output = LCh

The result after applying the operator.

fn pow(self, rhs: f32) -> Self::Output

Returns self to the power rhs.

impl Sub<f32> for LCh

type Output = LCh

The resulting type after applying the - operator.

fn sub(self, rhs: f32) -> Self::Output

Performs the - operation.

impl Sub for LCh

type Output = LCh

The resulting type after applying the - operator.

fn sub(self, rhs: LCh) -> LCh

Performs the - operation.

impl SubAssign<f32> for LCh

fn sub_assign(&mut self, rhs: f32)

Performs the -= operation.

impl SubAssign for LCh

fn sub_assign(&mut self, rhs: LCh)

Performs the -= operation.

impl Copy for LCh