simple tile utilities
npm install @mapbox/tilebeltimport*astilebeltfrom'@mapbox/tilebelt';consttile=[10,15,8]// x,y,ztilebelt.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 ]| 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 4 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 |
npm ci # install deps
npm test# tests
npm run bench # run benchmarks
npm run format # format using prettier