Trait UnitFromType

Source

pub trait UnitFromType {
    // Provided method
    fn unit_from_type() -> Unit { ... }
}

Expand description

A trait to derive Unit from a type. This trait bridges the gap between (external) types representing physical quantities (such as e.g. the Quantity type from the uom crate) and Unit.

Provided Methods§

Source

fn unit_from_type() -> Unit

This function derives an Unit from any type which implements UnitFromType. Its default implementation returns an Unit where all exponents are zero.

§Examples

use dyn_quantity::UnitFromType;
use uom::si::f64::Length;

// 64-bit floats do not represent a physical quantity
let exp = f64::unit_from_type();
assert_eq!(exp.meter, 0);

// The "Length" type alias from the uom crate represents a physical quantity (length)
let exp = Length::unit_from_type();
assert_eq!(exp.meter, 1);