openlayers

如此简洁明了的WMTS客户端实现-来自openlayers

by giser · 2019-04-03

时常看看官方文档，只有你想不到的惊喜，如此简洁明了的WMTS操作，我也是佩服。下面是来自于openlayers官网的代码：

<!DOCTYPE html>
<html>
  <head>
    <title>WMTS Layer from Capabilities</title>
    <link rel="stylesheet" href="https://openlayers.org/en/v5.3.0/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>

  </head>
  <body>
    <div id="map" class="map"></div>
    <script>
      import Map from 'ol/Map.js';
      import View from 'ol/View.js';
      import WMTSCapabilities from 'ol/format/WMTSCapabilities.js';
      import TileLayer from 'ol/layer/Tile.js';
      import OSM from 'ol/source/OSM.js';
      import WMTS, {optionsFromCapabilities} from 'ol/source/WMTS.js';

      var parser = new WMTSCapabilities();
      var map;

      fetch('data/WMTSCapabilities.xml').then(function(response) {
        return response.text();
      }).then(function(text) {
        var result = parser.read(text);
        var options = optionsFromCapabilities(result, {
          layer: 'layer-7328',
          matrixSet: 'EPSG:3857'
        });

        map = new Map({
          layers: [
            new TileLayer({
              source: new OSM(),
              opacity: 0.7
            }),
            new TileLayer({
              opacity: 1,
              source: new WMTS(/** @type {!module:ol/source/WMTS~Options} */ (options))
            })
          ],
          target: 'map',
          view: new View({
            center: [19412406.33, -5050500.21],
            zoom: 5
          })
        });
      });
    </script>
  </body>
</html>

转载自：https://blog.csdn.net/zw3413/article/details/85337134

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