@mapbox/tilebelt
Version:
simple tile utilities
212 lines • 21.2 kB
JavaScript
const d2r = Math.PI / 180;
const r2d = 180 / Math.PI;
function tile2lon(x, z) {
return (x / Math.pow(2, z)) * 360 - 180;
}
function tile2lat(y, z) {
const n = Math.PI - (2 * Math.PI * y) / Math.pow(2, z);
return r2d * Math.atan(0.5 * (Math.exp(n) - Math.exp(-n)));
}
/**
* Get the bbox of a tile
*
* const bbox = tileToBBOX([5, 10, 10])
* //=bbox
*/
export function tileToBBOX(tile) {
const e = tile2lon(tile[0] + 1, tile[2]);
const w = tile2lon(tile[0], tile[2]);
const s = tile2lat(tile[1] + 1, tile[2]);
const n = tile2lat(tile[1], tile[2]);
return [w, s, e, n];
}
/**
* Get a geojson representation of a tile
*
* const poly = tileToGeoJSON([5, 10, 10])
* //=poly
*/
export function tileToGeoJSON(tile) {
const bbox = tileToBBOX(tile);
return {
type: 'Polygon',
coordinates: [
[
[bbox[0], bbox[3]],
[bbox[0], bbox[1]],
[bbox[2], bbox[1]],
[bbox[2], bbox[3]],
[bbox[0], bbox[3]],
],
],
};
}
/**
* Get the tile for a point at a specified zoom level
*
* const tile = pointToTile(1, 1, 20)
* //=tile
*/
export function pointToTile(lon, lat, z) {
const tile = pointToTileFraction(lon, lat, z);
tile[0] = Math.floor(tile[0]);
tile[1] = Math.floor(tile[1]);
return tile;
}
/**
* Get the precise fractional tile location for a point at a zoom level
*
* const tile = pointToTileFraction(30.5, 50.5, 15)
* //=tile
*/
export function pointToTileFraction(lon, lat, z) {
const sin = Math.sin(lat * d2r);
const z2 = Math.pow(2, z);
let x = z2 * (lon / 360 + 0.5);
const y = z2 * (0.5 - (0.25 * Math.log((1 + sin) / (1 - sin))) / Math.PI);
// Wrap Tile X
x = x % z2;
if (x < 0)
x = x + z2;
return [x, y, z];
}
/**
* Get the 4 tiles one zoom level higher
*
* const tiles = getChildren([5, 10, 10])
* //=tiles
*/
export function getChildren(tile) {
return [
[tile[0] * 2, tile[1] * 2, tile[2] + 1],
[tile[0] * 2 + 1, tile[1] * 2, tile[2] + 1],
[tile[0] * 2 + 1, tile[1] * 2 + 1, tile[2] + 1],
[tile[0] * 2, tile[1] * 2 + 1, tile[2] + 1],
];
}
/**
* Get the tile one zoom level lower
*
* const tile = getParent([5, 10, 10])
* //=tile
*/
export function getParent(tile) {
return [tile[0] >> 1, tile[1] >> 1, tile[2] - 1];
}
export function getSiblings(tile) {
return getChildren(getParent(tile));
}
/**
* Get the 3 sibling tiles for a tile
*
* const tiles = getSiblings([5, 10, 10])
* //=boolean
*/
export function hasSiblings(tile, tiles) {
const siblings = getSiblings(tile);
for (let i = 0; i < siblings.length; i++) {
if (!hasTile(tiles, siblings[i]))
return false;
}
return true;
}
/**
* Check to see if an array of tiles contains a particular tile
*
* const tiles = [
* [0, 0, 5],
* [0, 1, 5],
* [1, 1, 5],
* [1, 0, 5]
* ]
* hasTile(tiles, [0, 0, 5])
* //=boolean
*/
export function hasTile(tiles, tile) {
for (let i = 0; i < tiles.length; i++) {
if (tilesEqual(tiles[i], tile))
return true;
}
return false;
}
/**
* Check to see if two tiles are the same
*
* tilesEqual([0, 1, 5], [0, 0, 5])
* //=boolean
*/
export function tilesEqual(tile1, tile2) {
return (tile1[0] === tile2[0] && tile1[1] === tile2[1] && tile1[2] === tile2[2]);
}
/**
* Get the quadkey for a tile
*
* const quadkey = tileToQuadkey([0, 1, 5])
* //=quadkey
*/
export function tileToQuadkey(tile) {
let index = '';
for (let z = tile[2]; z > 0; z--) {
let b = 0;
const mask = 1 << (z - 1);
if ((tile[0] & mask) !== 0)
b++;
if ((tile[1] & mask) !== 0)
b += 2;
index += b.toString();
}
return index;
}
/**
* Get the tile for a quadkey
*
* const tile = quadkeyToTile('00001033')
* //=tile
*/
export function quadkeyToTile(quadkey) {
let x = 0;
let y = 0;
const z = quadkey.length;
for (let i = z; i > 0; i--) {
const mask = 1 << (i - 1);
const q = +quadkey[z - i];
if (q === 1)
x |= mask;
if (q === 2)
y |= mask;
if (q === 3) {
x |= mask;
y |= mask;
}
}
return [x, y, z];
}
function getBboxZoom(bbox) {
const MAX_ZOOM = 28;
for (let z = 0; z < MAX_ZOOM; z++) {
const mask = 1 << (32 - (z + 1));
if ((bbox[0] & mask) !== (bbox[2] & mask) ||
(bbox[1] & mask) !== (bbox[3] & mask)) {
return z;
}
}
return MAX_ZOOM;
}
/**
* Get the smallest tile to cover a bbox
*
* const tile = bboxToTile([ -178, 84, -177, 85 ])
* //=tile
*/
export function bboxToTile(bboxCoords) {
const min = pointToTile(bboxCoords[0], bboxCoords[1], 32);
const max = pointToTile(bboxCoords[2], bboxCoords[3], 32);
const bbox = [min[0], min[1], max[0], max[1]];
const z = getBboxZoom(bbox);
if (z === 0)
return [0, 0, 0];
const x = bbox[0] >>> (32 - z);
const y = bbox[1] >>> (32 - z);
return [x, y, z];
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAEA,MAAM,GAAG,GAAG,IAAI,CAAC,EAAE,GAAG,GAAG,CAAC;AAC1B,MAAM,GAAG,GAAG,GAAG,GAAG,IAAI,CAAC,EAAE,CAAC;AAI1B,SAAS,QAAQ,CAAC,CAAS,EAAE,CAAS;IACpC,OAAO,CAAC,CAAC,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,GAAG,GAAG,GAAG,GAAG,CAAC;AAC1C,CAAC;AAED,SAAS,QAAQ,CAAC,CAAS,EAAE,CAAS;IACpC,MAAM,CAAC,GAAG,IAAI,CAAC,EAAE,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,EAAE,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IACvD,OAAO,GAAG,GAAG,IAAI,CAAC,IAAI,CAAC,GAAG,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;AAC7D,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,UAAU,CAAC,IAAU;IACnC,MAAM,CAAC,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IACzC,MAAM,CAAC,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IACrC,MAAM,CAAC,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IACzC,MAAM,CAAC,GAAG,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IACrC,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;AACtB,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,aAAa,CAAC,IAAU;IACtC,MAAM,IAAI,GAAG,UAAU,CAAC,IAAI,CAAC,CAAC;IAC9B,OAAO;QACL,IAAI,EAAE,SAAS;QACf,WAAW,EAAE;YACX;gBACE,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;gBAClB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;gBAClB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;gBAClB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;gBAClB,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;aACnB;SACF;KACF,CAAC;AACJ,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,WAAW,CAAC,GAAW,EAAE,GAAW,EAAE,CAAS;IAC7D,MAAM,IAAI,GAAG,mBAAmB,CAAC,GAAG,EAAE,GAAG,EAAE,CAAC,CAAC,CAAC;IAC9C,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IAC9B,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;IAC9B,OAAO,IAAI,CAAC;AACd,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,mBAAmB,CAAC,GAAW,EAAE,GAAW,EAAE,CAAS;IACrE,MAAM,GAAG,GAAG,IAAI,CAAC,GAAG,CAAC,GAAG,GAAG,GAAG,CAAC,CAAC;IAChC,MAAM,EAAE,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IAC1B,IAAI,CAAC,GAAG,EAAE,GAAG,CAAC,GAAG,GAAG,GAAG,GAAG,GAAG,CAAC,CAAC;IAC/B,MAAM,CAAC,GAAG,EAAE,GAAG,CAAC,GAAG,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,GAAG,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC,GAAG,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,EAAE,CAAC,CAAC;IAE1E,cAAc;IACd,CAAC,GAAG,CAAC,GAAG,EAAE,CAAC;IACX,IAAI,CAAC,GAAG,CAAC;QAAE,CAAC,GAAG,CAAC,GAAG,EAAE,CAAC;IACtB,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;AACnB,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,WAAW,CAAC,IAAU;IACpC,OAAO;QACL,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;QACvC,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;QAC3C,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;QAC/C,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;KAC5C,CAAC;AACJ,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,SAAS,CAAC,IAAU;IAClC,OAAO,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;AACnD,CAAC;AAED,MAAM,UAAU,WAAW,CAAC,IAAU;IACpC,OAAO,WAAW,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAC;AACtC,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,WAAW,CAAC,IAAU,EAAE,KAAa;IACnD,MAAM,QAAQ,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IACnC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,QAAQ,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;QACzC,IAAI,CAAC,OAAO,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC,CAAC,CAAC;YAAE,OAAO,KAAK,CAAC;IACjD,CAAC;IACD,OAAO,IAAI,CAAC;AACd,CAAC;AAED;;;;;;;;;;;GAWG;AACH,MAAM,UAAU,OAAO,CAAC,KAAa,EAAE,IAAU;IAC/C,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,KAAK,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;QACtC,IAAI,UAAU,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC;YAAE,OAAO,IAAI,CAAC;IAC9C,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,UAAU,CAAC,KAAW,EAAE,KAAW;IACjD,OAAO,CACL,KAAK,CAAC,CAAC,CAAC,KAAK,KAAK,CAAC,CAAC,CAAC,IAAI,KAAK,CAAC,CAAC,CAAC,KAAK,KAAK,CAAC,CAAC,CAAC,IAAI,KAAK,CAAC,CAAC,CAAC,KAAK,KAAK,CAAC,CAAC,CAAC,CACxE,CAAC;AACJ,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,aAAa,CAAC,IAAU;IACtC,IAAI,KAAK,GAAG,EAAE,CAAC;IACf,KAAK,IAAI,CAAC,GAAG,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC;QACjC,IAAI,CAAC,GAAG,CAAC,CAAC;QACV,MAAM,IAAI,GAAG,CAAC,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;QAC1B,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC;YAAE,CAAC,EAAE,CAAC;QAChC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC;YAAE,CAAC,IAAI,CAAC,CAAC;QACnC,KAAK,IAAI,CAAC,CAAC,QAAQ,EAAE,CAAC;IACxB,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,aAAa,CAAC,OAAe;IAC3C,IAAI,CAAC,GAAG,CAAC,CAAC;IACV,IAAI,CAAC,GAAG,CAAC,CAAC;IACV,MAAM,CAAC,GAAG,OAAO,CAAC,MAAM,CAAC;IAEzB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC;QAC3B,MAAM,IAAI,GAAG,CAAC,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;QAC1B,MAAM,CAAC,GAAG,CAAC,OAAO,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;QAC1B,IAAI,CAAC,KAAK,CAAC;YAAE,CAAC,IAAI,IAAI,CAAC;QACvB,IAAI,CAAC,KAAK,CAAC;YAAE,CAAC,IAAI,IAAI,CAAC;QACvB,IAAI,CAAC,KAAK,CAAC,EAAE,CAAC;YACZ,CAAC,IAAI,IAAI,CAAC;YACV,CAAC,IAAI,IAAI,CAAC;QACZ,CAAC;IACH,CAAC;IACD,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;AACnB,CAAC;AAED,SAAS,WAAW,CAAC,IAAU;IAC7B,MAAM,QAAQ,GAAG,EAAE,CAAC;IACpB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,QAAQ,EAAE,CAAC,EAAE,EAAE,CAAC;QAClC,MAAM,IAAI,GAAG,CAAC,IAAI,CAAC,EAAE,GAAG,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;QACjC,IACE,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC;YACrC,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC,EACrC,CAAC;YACD,OAAO,CAAC,CAAC;QACX,CAAC;IACH,CAAC;IAED,OAAO,QAAQ,CAAC;AAClB,CAAC;AAED;;;;;GAKG;AACH,MAAM,UAAU,UAAU,CAAC,UAAgB;IACzC,MAAM,GAAG,GAAG,WAAW,CAAC,UAAU,CAAC,CAAC,CAAC,EAAE,UAAU,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC;IAC1D,MAAM,GAAG,GAAG,WAAW,CAAC,UAAU,CAAC,CAAC,CAAC,EAAE,UAAU,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC;IAC1D,MAAM,IAAI,GAAS,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,CAAC,EAAE,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC;IAEpD,MAAM,CAAC,GAAG,WAAW,CAAC,IAAI,CAAC,CAAC;IAC5B,IAAI,CAAC,KAAK,CAAC;QAAE,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;IAC9B,MAAM,CAAC,GAAG,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC,EAAE,GAAG,CAAC,CAAC,CAAC;IAC/B,MAAM,CAAC,GAAG,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC,EAAE,GAAG,CAAC,CAAC,CAAC;IAC/B,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;AACnB,CAAC","sourcesContent":["import type { BBox, Geometry } from 'geojson';\n\nconst d2r = Math.PI / 180;\nconst r2d = 180 / Math.PI;\n\nexport type Tile = [number, number, number];\n\nfunction tile2lon(x: number, z: number): number {\n  return (x / Math.pow(2, z)) * 360 - 180;\n}\n\nfunction tile2lat(y: number, z: number): number {\n  const n = Math.PI - (2 * Math.PI * y) / Math.pow(2, z);\n  return r2d * Math.atan(0.5 * (Math.exp(n) - Math.exp(-n)));\n}\n\n/**\n * Get the bbox of a tile\n *\n * const bbox = tileToBBOX([5, 10, 10])\n * //=bbox\n */\nexport function tileToBBOX(tile: Tile): BBox {\n  const e = tile2lon(tile[0] + 1, tile[2]);\n  const w = tile2lon(tile[0], tile[2]);\n  const s = tile2lat(tile[1] + 1, tile[2]);\n  const n = tile2lat(tile[1], tile[2]);\n  return [w, s, e, n];\n}\n\n/**\n * Get a geojson representation of a tile\n *\n * const poly = tileToGeoJSON([5, 10, 10])\n * //=poly\n */\nexport function tileToGeoJSON(tile: Tile): Geometry {\n  const bbox = tileToBBOX(tile);\n  return {\n    type: 'Polygon',\n    coordinates: [\n      [\n        [bbox[0], bbox[3]],\n        [bbox[0], bbox[1]],\n        [bbox[2], bbox[1]],\n        [bbox[2], bbox[3]],\n        [bbox[0], bbox[3]],\n      ],\n    ],\n  };\n}\n\n/**\n * Get the tile for a point at a specified zoom level\n *\n * const tile = pointToTile(1, 1, 20)\n * //=tile\n */\nexport function pointToTile(lon: number, lat: number, z: number): Tile {\n  const tile = pointToTileFraction(lon, lat, z);\n  tile[0] = Math.floor(tile[0]);\n  tile[1] = Math.floor(tile[1]);\n  return tile;\n}\n\n/**\n * Get the precise fractional tile location for a point at a zoom level\n *\n * const tile = pointToTileFraction(30.5, 50.5, 15)\n * //=tile\n */\nexport function pointToTileFraction(lon: number, lat: number, z: number): Tile {\n  const sin = Math.sin(lat * d2r);\n  const z2 = Math.pow(2, z);\n  let x = z2 * (lon / 360 + 0.5);\n  const y = z2 * (0.5 - (0.25 * Math.log((1 + sin) / (1 - sin))) / Math.PI);\n\n  // Wrap Tile X\n  x = x % z2;\n  if (x < 0) x = x + z2;\n  return [x, y, z];\n}\n\n/**\n * Get the 4 tiles one zoom level higher\n *\n * const tiles = getChildren([5, 10, 10])\n * //=tiles\n */\nexport function getChildren(tile: Tile): Tile[] {\n  return [\n    [tile[0] * 2, tile[1] * 2, tile[2] + 1],\n    [tile[0] * 2 + 1, tile[1] * 2, tile[2] + 1],\n    [tile[0] * 2 + 1, tile[1] * 2 + 1, tile[2] + 1],\n    [tile[0] * 2, tile[1] * 2 + 1, tile[2] + 1],\n  ];\n}\n\n/**\n * Get the tile one zoom level lower\n *\n * const tile = getParent([5, 10, 10])\n * //=tile\n */\nexport function getParent(tile: Tile): Tile {\n  return [tile[0] >> 1, tile[1] >> 1, tile[2] - 1];\n}\n\nexport function getSiblings(tile: Tile): Tile[] {\n  return getChildren(getParent(tile));\n}\n\n/**\n * Get the 3 sibling tiles for a tile\n *\n * const tiles = getSiblings([5, 10, 10])\n * //=boolean\n */\nexport function hasSiblings(tile: Tile, tiles: Tile[]): boolean {\n  const siblings = getSiblings(tile);\n  for (let i = 0; i < siblings.length; i++) {\n    if (!hasTile(tiles, siblings[i])) return false;\n  }\n  return true;\n}\n\n/**\n * Check to see if an array of tiles contains a particular tile\n *\n * const tiles = [\n *     [0, 0, 5],\n *     [0, 1, 5],\n *     [1, 1, 5],\n *     [1, 0, 5]\n * ]\n * hasTile(tiles, [0, 0, 5])\n * //=boolean\n */\nexport function hasTile(tiles: Tile[], tile: Tile): boolean {\n  for (let i = 0; i < tiles.length; i++) {\n    if (tilesEqual(tiles[i], tile)) return true;\n  }\n  return false;\n}\n\n/**\n * Check to see if two tiles are the same\n *\n * tilesEqual([0, 1, 5], [0, 0, 5])\n * //=boolean\n */\nexport function tilesEqual(tile1: Tile, tile2: Tile): boolean {\n  return (\n    tile1[0] === tile2[0] && tile1[1] === tile2[1] && tile1[2] === tile2[2]\n  );\n}\n\n/**\n * Get the quadkey for a tile\n *\n * const quadkey = tileToQuadkey([0, 1, 5])\n * //=quadkey\n */\nexport function tileToQuadkey(tile: Tile): string {\n  let index = '';\n  for (let z = tile[2]; z > 0; z--) {\n    let b = 0;\n    const mask = 1 << (z - 1);\n    if ((tile[0] & mask) !== 0) b++;\n    if ((tile[1] & mask) !== 0) b += 2;\n    index += b.toString();\n  }\n  return index;\n}\n\n/**\n * Get the tile for a quadkey\n *\n * const tile = quadkeyToTile('00001033')\n * //=tile\n */\nexport function quadkeyToTile(quadkey: string): Tile {\n  let x = 0;\n  let y = 0;\n  const z = quadkey.length;\n\n  for (let i = z; i > 0; i--) {\n    const mask = 1 << (i - 1);\n    const q = +quadkey[z - i];\n    if (q === 1) x |= mask;\n    if (q === 2) y |= mask;\n    if (q === 3) {\n      x |= mask;\n      y |= mask;\n    }\n  }\n  return [x, y, z];\n}\n\nfunction getBboxZoom(bbox: BBox): number {\n  const MAX_ZOOM = 28;\n  for (let z = 0; z < MAX_ZOOM; z++) {\n    const mask = 1 << (32 - (z + 1));\n    if (\n      (bbox[0] & mask) !== (bbox[2] & mask) ||\n      (bbox[1] & mask) !== (bbox[3] & mask)\n    ) {\n      return z;\n    }\n  }\n\n  return MAX_ZOOM;\n}\n\n/**\n * Get the smallest tile to cover a bbox\n *\n * const tile = bboxToTile([ -178, 84, -177, 85 ])\n * //=tile\n */\nexport function bboxToTile(bboxCoords: BBox): Tile {\n  const min = pointToTile(bboxCoords[0], bboxCoords[1], 32);\n  const max = pointToTile(bboxCoords[2], bboxCoords[3], 32);\n  const bbox: BBox = [min[0], min[1], max[0], max[1]];\n\n  const z = getBboxZoom(bbox);\n  if (z === 0) return [0, 0, 0];\n  const x = bbox[0] >>> (32 - z);\n  const y = bbox[1] >>> (32 - z);\n  return [x, y, z];\n}\n"]}