OpenLayers 3 Beginner’s Guide

Creating animated map

<!doctype html>
<html>
  <head>
    <title>Animation Examples</title>
    <link rel="stylesheet" href="../assets/ol3/css/ol.css" type="text/css" />
    <link rel="stylesheet" href="../assets/css/samples.css" type="text/css" />
  </head>
  <body>
    <div id="map" class="map"></div>
    <button onclick="doBounce(london);">Bounce To London</button><br />
    <button onclick="doBounce(rome);">Bounce To Rome</button><br />
    <button onclick="doPan(london);">Pan To London</button><br />
    <button onclick="doPan(rome);">Pan To Rome</button><br />
    <button onclick="doRotate();">Rotate</button><br />
    <button onclick="doZoom(2);">Zoom Out</button><br />
    <button onclick="doZoom(0.5);">Zoom In</button>
    <script src="../assets/ol3/js/ol.js"></script>
    <script>
      var layer = new ol.layer.Tile({
        source: new ol.source.OSM()
      });
      var london = ol.proj.transform([-0.12755, 51.507222], 'EPSG:4326', 'EPSG:3857');
      var rome = ol.proj.transform([12.5, 41.9], 'EPSG:4326', 'EPSG:3857');
      var view = new ol.View({
        center: london,
        zoom: 6
      });
      var map = new ol.Map({
        target: 'map',
        layers: [layer],
        view: view
      });

      function doBounce(location) {
        // bounce by zooming out one level and back in
        var bounce = ol.animation.bounce({
          resolution: map.getView().getResolution() * 2
        });
        // start the pan at the current center of the map
        var pan = ol.animation.pan({
          source: map.getView().getCenter()
        });
        map.beforeRender(bounce);
        map.beforeRender(pan);
        // when we set the center to the new location, the animated move will
        // trigger the bounce and pan effects
        map.getView().setCenter(location);
      }
      function doPan(location) {
        // pan from the current center
        var pan = ol.animation.pan({
          source: map.getView().getCenter()
        });
        map.beforeRender(pan);
        // when we set the new location, the map will pan smoothly to it
        map.getView().setCenter(location);
      }
      function doRotate() {
        // rotate 360 degrees
        var rotate = ol.animation.rotate({
          rotation: Math.PI * 2
        });
        map.beforeRender(rotate);
      }
      function doZoom(factor) {
        // zoom from the current resolution
        var zoom = ol.animation.zoom({
          resolution: map.getView().getResolution()
        });
        map.beforeRender(zoom);
        // setting the resolution to a new value will smoothly zoom in or out
        // depending on the factor
        map.getView().setResolution(map.getView().getResolution() * factor);
      }
    </script>
  </body>
</html>