Trait dotrix_math::MetricSpace

pub trait MetricSpace {
    type Metric: BaseFloat;
    pub fn distance2(self, other: Self) -> Self::Metric;

    pub fn distance(self, other: Self) -> Self::Metric { ... }
}

A type with a distance function between values.

Examples are vectors, points, and quaternions.

Associated Types

type Metric: BaseFloat

The metric to be returned by the distance function.

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Required methods

pub fn distance2(self, other: Self) -> Self::Metric

Returns the squared distance.

This does not perform an expensive square root operation like in MetricSpace::distance method, and so can be used to compare distances more efficiently.

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Provided methods

pub fn distance(self, other: Self) -> Self::Metric

The distance between two values.

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Implementations on Foreign Types

impl<S> MetricSpace for Vector4<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Vector4<S>) -> S

impl<S> MetricSpace for Vector2<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Vector2<S>) -> S

impl<S> MetricSpace for Vector3<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Vector3<S>) -> S

impl<S> MetricSpace for Vector1<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Vector1<S>) -> S

impl<S> MetricSpace for Quaternion<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Quaternion<S>) -> S

impl<S> MetricSpace for Point2<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Point2<S>) -> S

impl<S> MetricSpace for Point3<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Point3<S>) -> S

impl<S> MetricSpace for Point1<S> where
    S: BaseFloat, 

type Metric = S

pub fn distance2(self, other: Point1<S>) -> S

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Implementors

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