Ol-Cesium base example

Ol-Cesium base example.
This page's Openlayers Ol-Cesium base example.
Tags: ol-cesium, openlayers, cesium
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<!DOCTYPE html>
<html>
  <head>
    <title>Ol-Cesium base example</title>
    <link rel="stylesheet" href="http://www.3daysofprogramming.com/playground/pg.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,Map,Set,Promise"></script>
    <link rel="stylesheet" href="https://cdn.rawgit.com/openlayers/openlayers.github.io/master/en/v5.2.0/css/ol.css">
    <script src="https://cdn.rawgit.com/openlayers/openlayers.github.io/master/en/v5.2.0/build/ol.js"></script>
    <script src="https://openlayers.org/ol-cesium/node_modules/@camptocamp/cesium/Build/Cesium/Cesium.js"></script>
    <script src="https://openlayers.org/ol-cesium/olcesium.js"></script>
    <style>
      /**
        * Create a position for the map
        * on the page */
      #map {
        width: 100%;
        height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="container" class="main">
      <div id="map"></div>
    </div>
    <button id="toggle">Toggle Cesium</button>
    <script>
      var raster = new ol.layer.Tile({
        source: new ol.source.OSM()
      });

      var map = new ol.Map({
        layers: [raster],
        target: 'map',
        view: new ol.View({
          center: [-11000000, 4600000],
          zoom: 4
        }),
      });

      var ol3d = new olcs.OLCesium({map: map}); // map is the ol.Map instance

      var show = true;
      ol3d.setEnabled(show);

      var btn = document.querySelector('#toggle');
      btn.addEventListener('click', function () {
        show = !show;
        ol3d.setEnabled(show);
      });

    </script>
  </body>
</html>