Add a raster tile source

Add a third-party raster source to the map.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Add a raster tile source</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-gl.js"></script>
<link href="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-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>
var map = new trackasiagl.Map({
container: 'map', // container id
style: {
'version': 8,
'sources': {
'raster-tiles': {
'type': 'raster',
'tiles': [
'https://stamen-tiles.a.ssl.fastly.net/watercolor/{z}/{x}/{y}.jpg'
],
'tileSize': 256,
'attribution':
'Map tiles by <a target="_top" rel="noopener" href="http://stamen.com">Stamen Design</a>, under <a target="_top" rel="noopener" href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. Data by <a target="_top" rel="noopener" href="http://openstreetmap.org">OpenStreetMap</a>, under <a target="_top" rel="noopener" href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>'
}
},
'layers': [
{
'id': 'simple-tiles',
'type': 'raster',
'source': 'raster-tiles',
'minzoom': 0,
'maxzoom': 22
}
]
},
center: [-74.5, 40], // starting position
zoom: 2 // starting zoom
});
</script>
</body>
</html>