OpenLayers示例代码： XYZ Retina瓦片
OpenLayers示例代码： XYZ Retina瓦片
<!DOCTYPE html>
<html>
<head>
<title>XYZ Retina Tiles</title>
<link rel="stylesheet" href="https://openlayers.org/en/v4.0.1/css/ol.css" type="text/css">
<!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
<script src="https://openlayers.org/en/v4.0.1/build/ol.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<script>
var mapMinZoom = 1;
var mapMaxZoom = 15;
var mapExtent = [-112.261791, 35.983744, -112.113981, 36.132062];
var map = new ol.Map({
target: 'map',
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
}),
new ol.layer.Tile({
extent: ol.proj.transformExtent(mapExtent, 'EPSG:4326', 'EPSG:3857'),
source: new ol.source.XYZ({
attributions: 'Tiles © USGS, rendered with ' +
'<a href="http://www.maptiler.com/">MapTiler</a>',
url: 'https://tileserver.maptiler.com/grandcanyon@2x/{z}/{x}/{y}.png',
tilePixelRatio: 2, // THIS IS IMPORTANT
minZoom: mapMinZoom,
maxZoom: mapMaxZoom
})
})
],
view: new ol.View({
projection: 'EPSG:3857',
center: ol.proj.transform([-112.18688965, 36.057944835],
'EPSG:4326', 'EPSG:3857'),
zoom: 12
})
});
</script>
</body>
</html>
说明：
OpenLayers示例代码： XYZ Retina瓦片
