Trait Distance 

pub trait Distance<P>
where
    P: Point,
{
    // Required method
    fn distance_2(&self, point: &P) -> P::Coord;

    // Provided method
    fn contains(&self, point: &P) -> bool { ... }
}

Defines a distance metric between a type (objects, points, AABB, etc.) and points

Required Methods

fn distance_2(&self, point: &P) -> P::Coord

Return the squared distance between self and point

Generally, only the relation between two distance values is required so that computing square roots can be avoided.

Provided Methods

fn contains(&self, point: &P) -> bool

Checks whether self contains point

The default implementation just checks whether the squared distance is zero.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<P> Distance<P> for (P, P)

where P: Point + Distance<P>,

fn distance_2(&self, point: &P) -> P::Coord

fn contains(&self, point: &P) -> bool

impl<T, const N: usize> Distance<[T; N]> for [T; N]

where T: Num + Copy + PartialOrd,

fn distance_2(&self, point: &[T; N]) -> T

Implementors