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Move quadKey function to the one place it is used

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This commit is contained in:
Tim Schaub
2018-11-20 13:31:54 -07:00
parent 60b3370bba
commit 37c987de0a
4 changed files with 36 additions and 37 deletions
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25
src/ol/tilecoord.js
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@@ -70,31 +70,6 @@ export function hash(tileCoord) {
}
/**
* @param {TileCoord} tileCoord Tile coord.
* @return {string} Quad key.
*/
export function quadKey(tileCoord) {
const z = tileCoord[0];
const digits = new Array(z);
let mask = 1 << (z - 1);
let i, charCode;
for (i = 0; i < z; ++i) {
// 48 is charCode for 0 - '0'.charCodeAt(0)
charCode = 48;
if (tileCoord[1] & mask) {
charCode += 1;
}
if (tileCoord[2] & mask) {
charCode += 2;
}
digits[i] = String.fromCharCode(charCode);
mask >>= 1;
}
return digits.join('');
}
/**
* @param {TileCoord} tileCoord Tile coordinate.
* @param {!import("./tilegrid/TileGrid.js").default} tileGrid Tile grid.