Struct RGBA 

pub struct RGBA {
    pub r: f64,
    pub g: f64,
    pub b: f64,
    pub a: f64,
}

Red Green Blue Alpha container

Description

RGBA data in 0->1 range floats

These values remove gamma-corrected values so that you can apply maths on them

This means the RGBA values are in linear space

Usage

Methods that are available:

• RGBA::default: returns a new RGBA value with RGB set to 0.0 and alpha set to 1.0
• RGBA::new: returns a new RGBA value
• RGBA::from_gamma: Create a new RGBA value from gamma-corrected values
• RGBA::to_gamma: Convert RGBA to gamma-corrected values
• RGBA::from_reader: returns a new RGBA value from a reader
• RGBA::from_u8s: returns a new RGBA value from 4 u8 values
• RGBA::to_u8s: returns a new RGBA value from 4 u8 values
• RGBA::from_u16s: returns a new RGBA value from 4 u16 values
• RGBA::to_u16s: returns a new RGBA value from 4 u16 values
• RGBA::from_u32: returns a new RGBA value from 4 u32 values
• RGBA::to_u32s: returns a new RGBA value from 4 u32 values
• RGBA::from_u64: returns a new RGBA value from 4 u64 values
• RGBA::to_u64s: returns a new RGBA value from 4 u64 values
• RGBA::from_hex: Create an RGBA color from a hex string

Fields

r: f64

Gamma corrected Red between 0 and 1

g: f64

Gamma corrected Green between 0 and 1

b: f64

Gamma corrected Blue between 0 and 1

a: f64

Opacity between 0 and 1 (not gamma corrected as opacity is linear)

Implementations

impl RGBA

pub fn new(r: f64, g: f64, b: f64, a: f64) -> Self

Create a new RGBA value

pub fn from_gamma(r: f64, g: f64, b: f64, a: f64) -> Self

Create a new RGBA value from gamma-corrected values

pub fn to_gamma(self) -> (f64, f64, f64, f64)

Convert RGBA to gamma-corrected values

pub fn from_u8s(r: u8, g: u8, b: u8, a: u8) -> Self

Create a new RGBA value from 4 u8 values

pub fn to_u8s(self) -> (u8, u8, u8, u8)

Convert RGBA to 4 u8 values in Gamma corrected 0->255 range

pub fn from_reader<R: Reader>(reader: &R, offset: Option<u64>) -> Self

Create a new RGBA value from 4 u16 values

pub fn from_u16s(r: u16, g: u16, b: u16, a: u16) -> Self

Create a new RGBA value from 4 u16 values

pub fn to_u16s(&self) -> (u16, u16, u16, u16)

Convert RGBA to 4 u16 values in Gamma corrected 0->65,535 range

pub fn from_u32(value: u32) -> Self

Convert a 32-bit integer to RGBA

pub fn to_u32s(&self) -> u32

Convert RGBA to a 32-bit integer (Big-endian: 0xRRGGBBAA) big-endian is more common in graphics formats like BMP, PNG, etc.

pub fn from_u64(value: u64) -> Self

Convert an unsigned 64-bit integer to RGBA

pub fn to_u64s(&self) -> u64

Convert RGBA to an unsigned 64-bit integer

pub fn from_hex(hex: &str) -> Self

Create an RGBA color from a hex string. Accepts formats: “#RRGGBB”, “#RRGGBBAA”, “RRGGBB”, “RRGGBBAA” (case-insensitive). Panics on invalid input.

Trait Implementations

impl Add for RGBA

type Output = RGBA

The resulting type after applying the + operator.

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

Performs the + operation.

impl AddAssign<f64> for RGBA

fn add_assign(&mut self, rhs: f64)

Performs the += operation.

impl AddAssign for RGBA

fn add_assign(&mut self, rhs: RGBA)

Performs the += operation.

impl Clone for RGBA

fn clone(&self) -> RGBA

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RGBA

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

Formats the value using the given formatter.

impl Default for RGBA

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RGBA

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Div for RGBA

type Output = RGBA

The resulting type after applying the / operator.

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

Performs the / operation.

impl DivAssign<f64> for RGBA

fn div_assign(&mut self, rhs: f64)

Performs the /= operation.

impl DivAssign for RGBA

fn div_assign(&mut self, rhs: RGBA)

Performs the /= operation.

impl<T: Reader> FeatureReader<GeoTIFFMetadata, Map<String, ValueType>, RGBA> for GeoTIFFReader<T>

A feature reader trait with a callback-based approach

type FeatureIterator<'a> = GeoTIFFIterator<'a, T> where T: 'a

The Feature Reader should implement an iterator of some kind

fn iter(&self) -> Self::FeatureIterator<'_>

All readers have an iter function that returns a Iterator struct

fn par_iter( &self, pool_size: usize, thread_id: usize, ) -> Self::FeatureIterator<'_>

All readers have a par_iter function that returns a ParallelIterator struct

impl From<&Map<String, PrimitiveValue>> for RGBA

Starting from a ref to an ValuePrimitive, convert to a struct

fn from(m: &ValuePrimitive) -> Self

Converts to this type from the input type.

impl From<&Map<String, ValueType>> for RGBA

fn from(mvalue: &MValue) -> Self

Converts to this type from the input type.

impl From<&ValuePrimitiveType> for RGBA

where RGBA: Default,

Starting from an ValuePrimitiveType ref, pull out the struct and apply the conversions

fn from(m: &ValuePrimitiveType) -> Self

Converts to this type from the input type.

impl From<&ValueType> for RGBA

fn from(value: &ValueType) -> Self

Converts to this type from the input type.

impl From<Map<String, PrimitiveValue>> for RGBA

Starting from an ValuePrimitive, convert to a struct

fn from(m: ValuePrimitive) -> Self

Converts to this type from the input type.

impl From<Map<String, ValueType>> for RGBA

fn from(mvalue: MValue) -> Self

Converts to this type from the input type.

impl From<RGBA> for ValuePrimitive

Starting from a struct, convert to an ValuePrimitive

fn from(value: RGBA) -> ValuePrimitive

Converts to this type from the input type.

impl From<RGBA> for MValue

fn from(value: RGBA) -> Self

Converts to this type from the input type.

impl From<RGBA> for ValuePrimitiveType

Starting from a struct, convert to an ValuePrimitiveType for Vec types

fn from(m: RGBA) -> Self

Converts to this type from the input type.

impl From<RGBA> for ValueType

fn from(value: RGBA) -> Self

Converts to this type from the input type.

impl From<ValuePrimitiveType> for RGBA

where RGBA: Default,

Starting from an ValuePrimitiveType, pull out the struct and apply the conversions

fn from(m: ValuePrimitiveType) -> Self

Converts to this type from the input type.

impl GetM<RGBA> for RGBA

fn m(&self) -> Option<&RGBA>

Returns the m value

impl GetRasterTileValue for RGBA

Available on crate feature std only.

fn get_raster_tile_value(r: u8, g: u8, b: u8, a: Option<u8>) -> Self

Get the value of a raster tile pixel

impl Mul for RGBA

type Output = RGBA

The resulting type after applying the * operator.

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

Performs the * operation.

impl MulAssign<f64> for RGBA

fn mul_assign(&mut self, rhs: f64)

Performs the *= operation.

impl MulAssign for RGBA

fn mul_assign(&mut self, rhs: RGBA)

Performs the *= operation.

impl PartialEq<f64> for RGBA

fn eq(&self, rhs: &f64) -> 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 PartialEq for RGBA

fn eq(&self, other: &RGBA) -> 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 Serialize for RGBA

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for RGBA

type Output = RGBA

The resulting type after applying the - operator.

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

Performs the - operation.

impl Copy for RGBA

impl MValueCompatible for RGBA

impl StructuralPartialEq for RGBA