Struct Laba

pub struct Laba {
    pub lightness: f32,
    pub a: f32,
    pub b: f32,
    pub alpha: f32,
}

Color in LAB color space, with alpha

Conversion

Conversion between the various color spaces is achieved using Rust’s native From trait. Because certain color spaces are defined by their transformation to and from another space, these From implementations reflect that set of definitions.

let color = Srgba::rgb(0.5, 0.5, 0.5);

// Using From explicitly
let linear_color = LinearRgba::from(color);

// Using Into
let linear_color: LinearRgba = color.into();

For example, the sRGB space is defined by its relationship with Linear RGB, and HWB by its with sRGB. As such, it is the responsibility of sRGB to provide From implementations for Linear RGB, and HWB for sRGB. To then provide conversion between Linear RGB and HWB directly, HWB is responsible for implementing these conversions, delegating to sRGB as an intermediatory. This ensures that all conversions take the shortest path between any two spaces, and limit the proliferation of domain specific knowledge for each color space to their respective definitions.

Fields

lightness: f32

The lightness channel. [0.0, 1.5]

a: f32

The a axis. [-1.5, 1.5]

b: f32

The b axis. [-1.5, 1.5]

alpha: f32

The alpha channel. [0.0, 1.0]

Implementations

impl Laba

pub const CIE_EPSILON: f32 = 0.00885645207f32

CIE Epsilon Constant

See Continuity (16) (17)

pub const CIE_KAPPA: f32 = 903.296325f32

CIE Kappa Constant

See Continuity (16) (17)

pub const fn new(lightness: f32, a: f32, b: f32, alpha: f32) -> Laba

Construct a new Laba color from components.

Arguments

• lightness - Lightness channel. [0.0, 1.5]
• a - a axis. [-1.5, 1.5]
• b - b axis. [-1.5, 1.5]
• alpha - Alpha channel. [0.0, 1.0]

pub const fn lab(lightness: f32, a: f32, b: f32) -> Laba

Construct a new Laba color from (l, a, b) components, with the default alpha (1.0).

Arguments

• lightness - Lightness channel. [0.0, 1.5]
• a - a axis. [-1.5, 1.5]
• b - b axis. [-1.5, 1.5]

pub const fn with_lightness(self, lightness: f32) -> Laba

Return a copy of this color with the lightness channel set to the given value.

Trait Implementations

impl Add for Laba

type Output = Laba

The resulting type after applying the + operator.

fn add(self, rhs: Laba) -> <Laba as Add>::Output

Performs the + operation.

impl AddAssign for Laba

fn add_assign(&mut self, rhs: Laba)

Performs the += operation.

impl Alpha for Laba

fn with_alpha(&self, alpha: f32) -> Laba

Return a new version of this color with the given alpha value.

fn alpha(&self) -> f32

Return a the alpha component of this color.

fn set_alpha(&mut self, alpha: f32)

Sets the alpha component of this color.

fn is_fully_transparent(&self) -> bool

Is the alpha component of this color less than or equal to 0.0?

fn is_fully_opaque(&self) -> bool

Is the alpha component of this color greater than or equal to 1.0?

impl Animatable for Laba

fn interpolate(a: &Laba, b: &Laba, t: f32) -> Laba

Interpolates between a and b with a interpolation factor of time.

fn blend(inputs: impl Iterator<Item = BlendInput<Laba>>) -> Laba

Blends one or more values together.

impl Clone for Laba

fn clone(&self) -> Laba

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ColorToComponents for Laba

fn to_f32_array(self) -> [f32; 4]

Convert to an f32 array

fn to_f32_array_no_alpha(self) -> [f32; 3]

Convert to an f32 array without the alpha value

fn to_vec4(self) -> Vec4

Convert to a Vec4

fn to_vec3(self) -> Vec3

Convert to a Vec3

fn from_f32_array(color: [f32; 4]) -> Laba

Convert from an f32 array

fn from_f32_array_no_alpha(color: [f32; 3]) -> Laba

Convert from an f32 array without the alpha value

fn from_vec4(color: Vec4) -> Laba

Convert from a Vec4

fn from_vec3(color: Vec3) -> Laba

Convert from a Vec3

impl Debug for Laba

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

Formats the value using the given formatter.

impl Default for Laba

fn default() -> Laba

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Laba

fn deserialize<__D>( __deserializer: __D, ) -> Result<Laba, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Div<f32> for Laba

type Output = Laba

The resulting type after applying the / operator.

fn div(self, rhs: f32) -> <Laba as Div<f32>>::Output

Performs the / operation.

impl DivAssign<f32> for Laba

fn div_assign(&mut self, rhs: f32)

Performs the /= operation.

impl From<Color> for Laba

fn from(value: Color) -> Laba

Converts to this type from the input type.

impl From<Hsla> for Laba

fn from(value: Hsla) -> Laba

Converts to this type from the input type.

impl From<Hsva> for Laba

fn from(value: Hsva) -> Laba

Converts to this type from the input type.

impl From<Hwba> for Laba

fn from(value: Hwba) -> Laba

Converts to this type from the input type.

impl From<Laba> for Color

fn from(value: Laba) -> Color

Converts to this type from the input type.

impl From<Laba> for Hsla

fn from(value: Laba) -> Hsla

Converts to this type from the input type.

impl From<Laba> for Hsva

fn from(value: Laba) -> Hsva

Converts to this type from the input type.

impl From<Laba> for Hwba

fn from(value: Laba) -> Hwba

Converts to this type from the input type.

impl From<Laba> for Lcha

fn from(_: Laba) -> Lcha

Converts to this type from the input type.

impl From<Laba> for LinearRgba

fn from(value: Laba) -> LinearRgba

Converts to this type from the input type.

impl From<Laba> for Oklaba

fn from(value: Laba) -> Oklaba

Converts to this type from the input type.

impl From<Laba> for Oklcha

fn from(value: Laba) -> Oklcha

Converts to this type from the input type.

impl From<Laba> for Srgba

fn from(value: Laba) -> Srgba

Converts to this type from the input type.

impl From<Laba> for Xyza

fn from(_: Laba) -> Xyza

Converts to this type from the input type.

impl From<Lcha> for Laba

fn from(_: Lcha) -> Laba

Converts to this type from the input type.

impl From<LinearRgba> for Laba

fn from(value: LinearRgba) -> Laba

Converts to this type from the input type.

impl From<Oklaba> for Laba

fn from(value: Oklaba) -> Laba

Converts to this type from the input type.

impl From<Oklcha> for Laba

fn from(value: Oklcha) -> Laba

Converts to this type from the input type.

impl From<Srgba> for Laba

fn from(value: Srgba) -> Laba

Converts to this type from the input type.

impl From<Xyza> for Laba

fn from(_: Xyza) -> Laba

Converts to this type from the input type.

impl FromArg for &'static Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = &'from_arg Laba

The type to convert into.

fn from_arg( arg: Arg<'_>, ) -> Result<<&'static Laba as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl FromArg for &'static mut Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = &'from_arg mut Laba

The type to convert into.

fn from_arg( arg: Arg<'_>, ) -> Result<<&'static mut Laba as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl FromArg for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = Laba

The type to convert into.

fn from_arg(arg: Arg<'_>) -> Result<<Laba as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl FromReflect for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn from_reflect(reflect: &(dyn PartialReflect + 'static)) -> Option<Laba>

Constructs a concrete instance of Self from a reflected value.

fn take_from_reflect( reflect: Box<dyn PartialReflect>, ) -> Result<Self, Box<dyn PartialReflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails.

impl GetOwnership for &Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl GetOwnership for &mut Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl GetOwnership for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl GetTypeRegistration for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.

fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type.

impl Gray for Laba

const BLACK: Laba

A pure black color.

const WHITE: Laba

A pure white color.

fn gray(lightness: f32) -> Self

Returns a grey color with the provided lightness from (0.0 - 1.0). 0 is black, 1 is white.

impl IntoReturn for &Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn into_return<'into_return>(self) -> Return<'into_return>

where &Laba: 'into_return,

Converts Self into a Return value.

impl IntoReturn for &mut Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn into_return<'into_return>(self) -> Return<'into_return>

where &mut Laba: 'into_return,

Converts Self into a Return value.

impl IntoReturn for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn into_return<'into_return>(self) -> Return<'into_return>

where Laba: 'into_return,

Converts Self into a Return value.

impl Luminance for Laba

fn with_luminance(&self, lightness: f32) -> Laba

Return a new version of this color with the given luminance. The resulting color will be clamped to the valid range for the color space; for some color spaces, clamping may cause the hue or chroma to change.

fn luminance(&self) -> f32

Return the luminance of this color (0.0 - 1.0).

fn darker(&self, amount: f32) -> Laba

Return a darker version of this color. The amount should be between 0.0 and 1.0. The amount represents an absolute decrease in luminance, and is distributive: color.darker(a).darker(b) == color.darker(a + b). Colors are clamped to black if the amount would cause them to go below black.

fn lighter(&self, amount: f32) -> Laba

Return a lighter version of this color. The amount should be between 0.0 and 1.0. The amount represents an absolute increase in luminance, and is distributive: color.lighter(a).lighter(b) == color.lighter(a + b). Colors are clamped to white if the amount would cause them to go above white.

impl Mix for Laba

fn mix(&self, other: &Laba, factor: f32) -> Laba

Linearly interpolate between this and another color, by factor. Factor should be between 0.0 and 1.0.

fn mix_assign(&mut self, other: Self, factor: f32)

Linearly interpolate between this and another color, by factor, storing the result in this color. Factor should be between 0.0 and 1.0.

impl Mul<Laba> for f32

type Output = Laba

The resulting type after applying the * operator.

fn mul(self, rhs: Laba) -> <f32 as Mul<Laba>>::Output

Performs the * operation.

impl Mul<f32> for Laba

type Output = Laba

The resulting type after applying the * operator.

fn mul(self, rhs: f32) -> <Laba as Mul<f32>>::Output

Performs the * operation.

impl MulAssign<f32> for Laba

fn mul_assign(&mut self, rhs: f32)

Performs the *= operation.

impl Neg for Laba

type Output = Laba

The resulting type after applying the - operator.

fn neg(self) -> <Laba as Neg>::Output

Performs the unary - operation.

impl PartialEq for Laba

fn eq(&self, other: &Laba) -> 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 PartialReflect for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value.

fn clone_value(&self) -> Box<dyn PartialReflect>

Clones the value as a Reflect trait object.

fn try_apply( &mut self, value: &(dyn PartialReflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value.

fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type.

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type.

fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type.

fn reflect_owned(self: Box<Laba>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn try_into_reflect( self: Box<Laba>, ) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>

Attempts to cast this type to a boxed, fully-reflected value.

fn try_as_reflect(&self) -> Option<&(dyn Reflect + 'static)>

Attempts to cast this type to a fully-reflected value.

fn try_as_reflect_mut(&mut self) -> Option<&mut (dyn Reflect + 'static)>

Attempts to cast this type to a mutable, fully-reflected value.

fn into_partial_reflect(self: Box<Laba>) -> Box<dyn PartialReflect>

Casts this type to a boxed, reflected value.

fn as_partial_reflect(&self) -> &(dyn PartialReflect + 'static)

Casts this type to a reflected value.

fn as_partial_reflect_mut(&mut self) -> &mut (dyn PartialReflect + 'static)

Casts this type to a mutable, reflected value.

fn reflect_partial_eq( &self, value: &(dyn PartialReflect + 'static), ) -> Option<bool>

Returns a “partial equality” comparison result.

fn apply(&mut self, value: &(dyn PartialReflect + 'static))

Applies a reflected value to this value.

fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type).

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

Debug formatter for the value.

fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value.

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl Reflect for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn into_any(self: Box<Laba>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.

fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.

fn into_reflect(self: Box<Laba>) -> Box<dyn Reflect>

Casts this type to a boxed, fully-reflected value.

fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a fully-reflected value.

fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable, fully-reflected value.

fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value.

impl Serialize for Laba

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 Struct for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn field(&self, name: &str) -> Option<&(dyn PartialReflect + 'static)>

Returns a reference to the value of the field named name as a &dyn PartialReflect.

fn field_mut( &mut self, name: &str, ) -> Option<&mut (dyn PartialReflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn PartialReflect.

fn field_at(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn PartialReflect.

fn field_at_mut( &mut self, index: usize, ) -> Option<&mut (dyn PartialReflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn PartialReflect.

fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.

fn field_len(&self) -> usize

Returns the number of fields in the struct.

fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.

fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.

fn get_represented_struct_info(&self) -> Option<&'static StructInfo>

Will return None if TypeInfo is not available.

impl Sub for Laba

type Output = Laba

The resulting type after applying the - operator.

fn sub(self, rhs: Laba) -> <Laba as Sub>::Output

Performs the - operation.

impl SubAssign for Laba

fn sub_assign(&mut self, rhs: Laba)

Performs the -= operation.

impl TypePath for Laba

where Laba: Any + Send + Sync,

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.

impl Typed for Laba

where Laba: Any + Send + Sync, f32: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

impl VectorSpace for Laba

const ZERO: Laba

The zero vector, which is the identity of addition for the vector space type.

fn lerp(self, rhs: Self, t: f32) -> Self

Perform vector space linear interpolation between this element and another, based on the parameter t. When t is 0, self is recovered. When t is 1, rhs is recovered.

impl Copy for Laba

impl StructuralPartialEq for Laba