JSFiddle - React, Tailwind, and code Playground

by ahocevar

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="http://openlayers.org/en/v3.9.0/css/ol.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="http://openlayers.org/en/v3.9.0/build/ol-debug.js"></script>
<div class="row-fluid">
  <div class="span4">
    <div id="map1" class="map"></div>
  </div>
  <div class="span4">
    <div id="map2" class="map"></div>
  </div>
</div>

JavaScript

var map1 = new ol.Map({
  layers: [
    new ol.layer.Image({
      source: new ol.source.ImageWMS({
        url: 'http://demo.opengeo.org/geoserver/wms',
        params: {LAYERS: 'topp:states'}
      })
    })
  ],
  target: 'map1',
  view: new ol.View({
    center: [0, 0],
    zoom: 1
  })
});



var map2 = new ol.Map({
  target: 'map2',
  layers: map1.getLayers(),
  view: new ol.View({
    projection: 'EPSG:4326',
    center: [0, 0],
    zoom: 1
  })
});

map1.getView().on('propertychange', function(evt) {
  map2.getView().setCenter(ol.proj.toLonLat(map1.getView().getCenter()));
  map2.getView().setZoom(map1.getView().getZoom());
  map2.getView().setRotation(map1.getView().getRotation());
});