Struct measurements::speed::Speed

pub struct Speed { /* fields omitted */ }

The Speed struct can be used to deal with speeds in a common way. Common metric and imperial units are supported.

Example

use measurements::Speed;

let light = Speed::from_meters_per_second(300_000_000.0);
let mph = light.as_miles_per_hour();
println!("The speed of light is {} mph.", mph);

Methods

impl Speed

pub fn from_meters_per_second(meters_per_second: f64) -> Speed

Create a new Speed from a floating point number of m/s

pub fn from_metres_per_second(metres_per_second: f64) -> Speed

Create a new Speed from a floating point number of m/s

pub fn from_kilometers_per_hour(kilometers_per_hour: f64) -> Speed

Create a new Speed from a floating point number of km/h (kph)

pub fn from_kilometres_per_hour(kilometres_per_hour: f64) -> Speed

Create a new Speed from a floating point number of km/h (kph)

pub fn from_miles_per_hour(miles_per_hour: f64) -> Speed

Create a new Speed from a floating point number of miles/hour (mph)

pub fn as_meters_per_second(&self) -> f64

Convert this speed to a floating point number of m/s

pub fn as_metres_per_second(&self) -> f64

Convert this speed to a floating point number of m/s

pub fn as_kilometers_per_hour(&self) -> f64

Convert this speed to a floating point number of km/hour (kph)

pub fn as_kilometres_per_hour(&self) -> f64

Convert this speed to a floating point number of km/hour (kph)

pub fn as_miles_per_hour(&self) -> f64

Convert this speed to a floating point number of miles/hour (mph)

Trait Implementations

impl Copy for Speed

impl Clone for Speed

fn clone(&self) -> Speed

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Speed

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

Formats the value using the given formatter.

impl Measurement for Speed

fn as_base_units(&self) -> f64

Get this quantity in the base units

fn from_base_units(units: f64) -> Self

Create a new quantity from the base units

fn get_base_units_name(&self) -> &'static str

Return the base unit for this type, as a string. For example "kilograms"

fn get_appropriate_units(&self) -> (&'static str, f64)

Returns a string containing the most appropriate units for this quantity, and a floating point value representing this quantity in those units. Useful when, for example, a length might be in millimeters if it is very small, or kilometers when it is very large.

fn pick_appropriate_units(     &self,     list: &[(&'static str, f64)] ) -> (&'static str, f64)

Given a list of units and their scale relative to the base unit, select the most appropriate one.

impl Display for Speed

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

Formats the value using the given formatter.

impl Add for Speed

type Output = Self

The resulting type after applying the + operator.

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

Performs the + operation.

impl Sub for Speed

type Output = Self

The resulting type after applying the - operator.

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

Performs the - operation.

impl Div<Speed> for Speed

type Output = f64

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> f64

Performs the / operation.

impl Div<f64> for Speed

type Output = Self

The resulting type after applying the / operator.

fn div(self, rhs: f64) -> Self

Performs the / operation.

impl Mul<f64> for Speed

type Output = Self

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> Self

Performs the * operation.

impl Mul<Speed> for f64

type Output = Speed

The resulting type after applying the * operator.

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

Performs the * operation.

impl Eq for Speed

impl PartialEq for Speed

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd for Speed

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Mul<Duration> for Speed

type Output = Length

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul<Speed> for Duration

type Output = Length

The resulting type after applying the * operator.

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

Performs the * operation.

impl Div<Speed> for Length

type Output = Duration

The resulting type after applying the / operator.

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

Performs the / operation.

impl Mul<Force> for Speed

type Output = Power

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul<Speed> for Force

type Output = Power

The resulting type after applying the * operator.

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

Performs the * operation.

impl Div<Speed> for Power

type Output = Force

The resulting type after applying the / operator.

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

Performs the / operation.

impl Div<Acceleration> for Speed

type Output = Duration

The resulting type after applying the / operator.

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

Performs the / operation.

impl Div<Duration> for Speed

type Output = Acceleration

The resulting type after applying the / operator.

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

Performs the / operation.