陰影処理を追加

ラスタ型陰影処理をマップに追加します。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>陰影処理を追加</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://api.mapbox.com/mapbox-gl-js/v1.6.1/mapbox-gl.js"></script>
<link href="https://api.mapbox.com/mapbox-gl-js/v1.6.1/mapbox-gl.css" rel="stylesheet" />
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
mapboxgl.accessToken = '<your access token here>';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/cjaudgl840gn32rnrepcb9b9g', // the outdoors-v10 style but without Hillshade layers
center: [-119.5591, 37.715],
zoom: 9
});
map.on('load', function() {
map.addSource('dem', {
'type': 'raster-dem',
'url': 'mapbox://mapbox.terrain-rgb'
});
map.addLayer(
{
'id': 'hillshading',
'source': 'dem',
'type': 'hillshade'
// insert below waterway-river-canal-shadow;
// where hillshading sits in the Mapbox Outdoors style
},
'waterway-river-canal-shadow'
);
});
</script>
</body>
</html>