Example of a Zoomify source.

Zoomify is a format for deep-zooming into high resolution images. This example shows how to use the Zoomify source with a pixel projection.

<!DOCTYPE html>
    <link rel="stylesheet" href="https://openlayers.org/en/v4.2.0/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/v4.2.0/build/ol.js"></script>
    <div id="map" class="map"></div>
      var imgWidth = 9911;
      var imgHeight = 6100;

      var source = new ol.source.Zoomify({
        url: 'http://vips.vtech.fr/cgi-bin/iipsrv.fcgi?zoomify=' +
        size: [imgWidth, imgHeight],
        crossOrigin: 'anonymous'
      var extent = [0, -imgHeight, imgWidth, 0];

      var map = new ol.Map({
        layers: [
          new ol.layer.Tile({
            source: source
        target: 'map',
        view: new ol.View({
          // adjust zoom levels to those provided by the source
          resolutions: source.getTileGrid().getResolutions(),
          // constrain the center: center cannot be set outside this extent
          extent: extent