Module units 

Angles, distances, speeds and rates of turn as types.

A function taking (f64, f64) cannot distinguish knots from m/s; these types can.

Internally distances are nautical miles, speeds knots, rates of turn °/min; construct and read in any unit.

Example

use kinavis_kernel::{Distance, KernelError, Speed};
use core::time::Duration;

let leg = Distance::from_nautical_miles(12.0)?;
assert_eq!(format!("{:.0}", leg.metres()), "22224");
assert_eq!(format!("{:.0}", leg.cables()), "120");

let speed = Speed::from_knots(8.0)?;
let elapsed = speed.time_to_cover(leg)?;
assert_eq!(elapsed.as_secs(), 5400); // an hour and a half

assert_eq!(speed.distance_covered(elapsed).nautical_miles(), 12.0);

Structs

Angle

Angular magnitude in degrees.

Distance

Distance, stored in nautical miles.

RateOfTurn

Rate of turn in °/min, as shown by the ROT indicator.

Speed

Speed, stored in knots. Negative is sternway.

Constants

CABLES_PER_NAUTICAL_MILE

Cables per nautical mile.

METRES_PER_FATHOM

Metres per fathom (6 ft).

METRES_PER_FOOT

Metres per foot.

METRES_PER_NAUTICAL_MILE

Metres per international nautical mile.

Functions

duration_from_hours

Duration from hours.

hours

Duration in hours.