Struct Quantity 

pub struct Quantity {
    pub value: f64,
    pub dim: Dim,
}

A value with a physical dimension, stored in canonical units (mm, rad, s).

Fields

value: f64

Value in canonical units.

dim: Dim

Dimension.

Implementations

impl Quantity

pub const fn scalar(v: f64) -> Self

Dimensionless number.

pub fn length(v: f64, unit: LengthUnit) -> Self

Length from a value in unit.

pub fn angle(v: f64, unit: AngleUnit) -> Self

Angle from a value in unit.

pub fn time(v: f64, unit: TimeUnit) -> Self

Time from a value in unit.

pub fn checked_add(self, o: Self) -> GeoResult<Self>

Checked addition (dimensions must match).

pub fn checked_sub(self, o: Self) -> GeoResult<Self>

Checked subtraction.

pub fn times(self, o: Self) -> Self

Product (dimensions multiply).

pub fn per(self, o: Self) -> Self

Quotient (dimensions divide).

pub fn parse(s: &str) -> GeoResult<Self>

Parse strings like "60 cm", "2.5m", "90 deg", "15 min", "3".

Trait Implementations

impl Clone for Quantity

fn clone(&self) -> Quantity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Quantity

impl Debug for Quantity

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Quantity

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Quantity

fn eq(&self, other: &Quantity) -> 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 Quantity

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Quantity