 ol.layer.Tile({
      source: new ol.source.OSM()
    }),
    new ol.layer.Image({
      opacity: 0.3,
      source: raster
    })
  ],
  view: new ol.View({
    extent: [-13675026, 4439648, -13580856, 4580292],
    center: [-13615645, 4497969],
    minZoom: 10,
    maxZoom: 16,
    zoom: 13
  })
});

var controlIds &#x3D; [&#x27;vert&#x27;, &#x27;sunEl&#x27;, &#x27;sunAz&#x27;];
var controls &#x3D; {};
controlIds.forEach(function(id) {
  var control &#x3D; document.getElementById(id);
  var output &#x3D; 