Zoom Sliders

Default style

Placed between zoom controls

Horizontal and completely re-styled

Example of various ZoomSlider controls.

This example shows how to add a zoom slider to a map and how to customize it.

<!DOCTYPE html>
<html>
  <head>
    <title>Zoom Sliders</title>
    <link rel="stylesheet" href="https://openlayers.org/en/v4.5.0/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>
    <script src="https://openlayers.org/en/v4.5.0/build/ol.js"></script>
    <style>
      /**
       * The zoomslider in the second map shall be placed between the zoom-in and
       * zoom-out buttons.
       */
      #map2 .ol-zoom .ol-zoom-out {
        margin-top: 204px;
      }
      #map2 .ol-zoomslider {
        background-color: transparent;
        top: 2.3em;
      }

      #map2 .ol-touch .ol-zoom .ol-zoom-out {
        margin-top: 212px;
      }
      #map2 .ol-touch .ol-zoomslider {
        top: 2.75em;
      }

      #map2 .ol-zoom-in.ol-has-tooltip:hover [role=tooltip],
      #map2 .ol-zoom-in.ol-has-tooltip:focus [role=tooltip] {
        top: 3px;
      }

      #map2 .ol-zoom-out.ol-has-tooltip:hover [role=tooltip],
      #map2 .ol-zoom-out.ol-has-tooltip:focus [role=tooltip] {
        top: 232px;
      }

      /**
       * The zoomslider in the third map shall be horizontal, placed in the top-right
       * corner, smaller and orange.
       */
      #map3 .ol-zoomslider {
        top: 8px;
        left: auto;
        right: 8px;
        background-color: rgba(255,69,0,0.2);
        width: 200px;
        height: 15px;
        padding: 0;
        box-shadow: 0 0 5px rgb(255,69,0);
        border-radius: 20px;
      }

      #map3 .ol-zoomslider:hover {
        background-color: rgba(255,69,0,0.3);
      }

      #map3 .ol-zoomslider-thumb {
        height: 15px;
        width: 15px;
        margin: 0;
        filter: none;
        background-color: rgba(255,69,0,0.6);
        border-radius: 20px;
      }
      #map3 a.ol-zoomslider-handle:hover {
        background-color: rgba(255,69,0,0.7);
      }
    </style>
  </head>
  <body>
    <h4>Default style</h4>
    <div id="map1" class="map"></div>

    <h4>Placed between zoom controls</h4>
    <div id="map2" class="map"></div>

    <h4>Horizontal and completely re-styled</h4>
    <div id="map3" class="map"></div>
    <script>
      /**
       * Helper method for map-creation.
       *
       * @param {string} divId The id of the div for the map.
       * @return {ol.PluggableMap} The ol.Map instance.
       */
      var createMap = function(divId) {
        var source, layer, map, zoomslider;

        source = new ol.source.OSM();
        layer = new ol.layer.Tile({
          source: source
        });
        map = new ol.Map({
          layers: [layer],
          target: divId,
          view: new ol.View({
            center: [0, 0],
            zoom: 2
          })
        });
        zoomslider = new ol.control.ZoomSlider();
        map.addControl(zoomslider);
        return map;
      };

      var map1 = createMap('map1');
      var map2 = createMap('map2');
      var map3 = createMap('map3');
    </script>
  </body>
</html>