Trait uom::Conversion

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pub trait Conversion<V> {
    type T: ConversionFactor<V>;

    // Provided methods
    fn coefficient() -> Self::T { ... }
    fn constant(op: ConstantOp) -> Self::T { ... }
    fn conversion(&self) -> Self::T
       where Self: Sized { ... }
}

Expand description

Trait to identify units which have a conversion factor.

§Generic Parameters

V: Underlying storage type trait is implemented for.

Required Associated Types§

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type T: ConversionFactor<V>

Conversion factor type specific to the underlying storage type.

Provided Methods§

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fn coefficient() -> Self::T

Coefficient portion of conversion factor for converting the given unit. To convert to the base unit for the quantity use (value + constant()) * coefficient(). To convert from the base unit, (value / coefficient()) - constant() is used. Implementation should return the multiplicative identity (Self::T::one()) if no coefficient exists.

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fn constant(op: ConstantOp) -> Self::T

Constant portion of conversion factor for converting the given unit. To convert to the base unit for the quantity use (value + constant()) * coefficient(). To convert from the base unit, (value / coefficient()) - constant() is used. Implementation should return the additive identity (Self::T::zero()) if no constant exists. See ConstantOp documentation for details about parameter use to ensure the method optimizes correctly.

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fn conversion(&self) -> Self::T
where Self: Sized,

Instance conversion factor.

Default implementation returns the coefficient: Self::coefficient().

Object Safety§

This trait is not object safe.

Trait uom::Conversion

§Generic Parameters

Required Associated Types§

type T: ConversionFactor<V>

Provided Methods§

fn coefficient() -> Self::T

fn constant(op: ConstantOp) -> Self::T

fn conversion(&self) -> Self::Twhere Self: Sized,

Object Safety§

Implementations on Foreign Types§

impl Conversion<f32> for f32

type T = f32

fn constant(op: ConstantOp) -> Self::T

fn conversion(&self) -> Self::T

impl Conversion<f64> for f64

type T = f64

fn constant(op: ConstantOp) -> Self::T

fn conversion(&self) -> Self::T

impl Conversion<i32> for i32

type T = Ratio<i32>

fn conversion(&self) -> Self::T

impl Conversion<i64> for i64

type T = Ratio<i64>

fn conversion(&self) -> Self::T

impl Conversion<isize> for isize

type T = Ratio<isize>

fn conversion(&self) -> Self::T

impl Conversion<u32> for u32

type T = Ratio<u32>

fn conversion(&self) -> Self::T

impl Conversion<u64> for u64

type T = Ratio<u64>

fn conversion(&self) -> Self::T

impl Conversion<usize> for usize

type T = Ratio<usize>

fn conversion(&self) -> Self::T

impl Conversion<BigInt> for BigInt

type T = Ratio<BigInt>

fn conversion(&self) -> Self::T

impl Conversion<BigUint> for BigUint

type T = Ratio<BigUint>

fn conversion(&self) -> Self::T

impl Conversion<Ratio<i32>> for Rational32

type T = Ratio<i32>

fn conversion(&self) -> Self::T

impl Conversion<Ratio<i64>> for Rational64

type T = Ratio<i64>

fn conversion(&self) -> Self::T

impl Conversion<Ratio<BigInt>> for BigRational

type T = Ratio<BigInt>

fn conversion(&self) -> Self::T

Implementors§

impl Conversion<f32> for attometer_second

type T = f32

impl Conversion<f32> for centimeter_second

type T = f32

impl Conversion<f32> for decameter_second

type T = f32

impl Conversion<f32> for decimeter_second

type T = f32

impl Conversion<f32> for exameter_second

type T = f32

impl Conversion<f32> for femtometer_second

type T = f32

impl Conversion<f32> for foot_second

type T = f32

impl Conversion<f32> for gigameter_second

type T = f32

impl Conversion<f32> for hectometer_second

type T = f32

impl Conversion<f32> for inch_second

type T = f32

impl Conversion<f32> for kilometer_hour

type T = f32

impl Conversion<f32> for kilometer_second

type T = f32

impl Conversion<f32> for megameter_second

type T = f32

impl Conversion<f32> for meter_second

type T = f32

fn conversion(&self) -> Self::T
where Self: Sized,