Function libh3::k_ring

pub fn k_ring(origin: H3Index, radius: i32) -> Vec<H3Index>

Get all hexagons in a k-ring around a given center. The order of the hexagons is undefined.

Arguments

• origin - The center of the ring.
• radius - The radis of the ring in hexagons, which is the same resolution as the origin.

let expected_kring = vec![
  0x8a2a1072b59ffff,
  0x8a2a1072b597fff,
  0x8a2a1070c96ffff,
  0x8a2a1072b4b7fff,
  0x8a2a1072b4a7fff,
  0x8a2a1072b58ffff,
  0x8a2a1072b587fff,
];
let r = libh3::k_ring(0x8a2a1072b59ffff, 1);
assert_eq!(r, expected_kring);