@mapbox/tilebelt
v2.0.0
Published
simple tile utilities
Downloads
139,458
Maintainers
Readme
tilebelt
simple tile utilities
install
npm install @mapbox/tilebelt
usage
import * as tilebelt from '@mapbox/tilebelt';
const tile = [10, 15, 8] // x,y,z
tilebelt.tileToGeoJSON(tile);
// {
// "type": "Polygon",
// "coordinates": [
// [
// [ -165.9375, 82.8533822917608 ],
// [ -165.9375, 82.67628497834903 ],
// [ -164.53125, 82.67628497834903 ],
// [ -164.53125, 82.8533822917608 ],
// [ -165.9375, 82.8533822917608 ]
// ]
// ]
// }
tilebelt.getParent(tile);
// [ 5, 7, 7 ]
features
function | description
---|---
tileToGeoJSON(tile)
| get a geojson representation of a tile
tileToBBOX(tile)
| get the bbox of a tile
bboxToTile(bbox)
| get the smallest tile to cover a bbox
getChildren(tile)
| get the 4 tiles one zoom level higher
getParent(tile)
| get the tile one zoom level lower
getSiblings(tile)
| get the 3 sibling tiles for a tile
hasSiblings(tiles, tile)
| check to see if an array of tiles contains a tiles siblings
hasTile(tiles, tile)
| check to see if an array of tiles contains a particular tile
tilesEqual(tile1, tile2)
| check to see if two tiles are the same
tileToQuadkey(tile)
| get the quadkey for a tile
quadkeyToTile(quadkey)
| get the tile for a quadkey
pointToTile(lon, lat, zoom)
| get the tile for a point at a specified zoom level
pointToTileFraction(lon, lat, zoom)
| get the precise fractional tile location for a point at a zoom level
developing
npm ci # install deps
npm test # tests
npm run bench # run benchmarks
npm run format # format using prettier