function loadTiles(which, url, maxZoom, projection, zoom) {
    const tiler = utilTiler().zoomExtent([minZoom, maxZoom]).skipNullIsland(true);
    const tiles = tiler.getTiles(projection);

    tiles.forEach(function(tile) {
        loadTile(which, url, tile, zoom);
    });
}
Load all data for the specified type from Panoramax vector tiles
@param {string} which Either 'images' or 'lines'
@param {string} url Tile endpoint
@param {number} maxZoom Maximum zoom out
@param {*} projection Current projection
@param {number} zoom current zoom