Struct rand_distr::UnitSphere

pub struct UnitSphere;

Samples uniformly from the surface of the unit sphere in three dimensions.

Implemented via a method by Marsaglia¹.

Example

use rand_distr::{UnitSphere, Distribution};

let v: [f64; 3] = UnitSphere.sample(&mut rand::thread_rng());
println!("{:?} is from the unit sphere surface.", v)

---

1. Marsaglia, George (1972). Choosing a Point from the Surface of a Sphere. Ann. Math. Statist. 43, no. 2, 645--646. ↩

Trait Implementations

impl Copy for UnitSphere

impl Clone for UnitSphere

fn clone(&self) -> UnitSphere

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UnitSphere

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

Formats the value using the given formatter.

impl<N: Float + SampleUniform> Distribution<[N; 3]> for UnitSphere

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> [N; 3]

Generate a random value of T, using rng as the source of randomness.

Important traits for DistIter<D, R, T>

impl<D, R, T> Iterator for DistIter<D, R, T> where
    D: Distribution<T>,
    R: Rng,  type Item = T;

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T> where
    R: Rng, 

Create an iterator that generates random values of T, using rng as the source of randomness.