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<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="../../dist/leaflet.css" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../css/screen.css" />
<script src="../leaflet-include.js"></script>
<style>
#map {
margin: 256px;
width: auto;
overflow: visible
}
</style>
</head>
<body>
The CSS in this page makes the boundaries of the GridLayer tiles visible. Tiles which do not overlap the map bounds shall not be shown, even at fractional zoom levels.
<button onclick='map.zoomIn(0.1)'> Zoom + 0.1 </button>
<button onclick='map.zoomOut(0.1)'> Zoom - 0.1 </button>
<div id="map" class="map"></div>
<script>
var mapopts = {
center: [35, -122],
zoom: 5.7,
zoomSnap: 0.1
};
var map = L.map('map', mapopts);
var grid = L.gridLayer({
attribution: 'Grid Layer',
tileSize: L.point(150, 80)
});
grid.createTile = function (coords, done) {
var tile = document.createElement('div');
tile.innerHTML = [coords.x, coords.y, coords.z].join(', ');
tile.style.border = '2px solid red';
// tile.style.background = 'white';
// test async
setTimeout(function () {
done(null, tile);
}, 0);
return tile;
};
map.addLayer(grid);
</script>
</body>
</html>
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