Image Reprojection

Demonstrates client-side reprojection of single image source.

This example shows client-side reprojection of single image source.

<!DOCTYPE html>
<html>
  <head>
    <title>Image Reprojection</title>
    <link rel="stylesheet" href="https://openlayers.org/en/v5.3.0/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>

  </head>
  <body>
    <div id="map" class="map"></div>
    <script>
      import Map from 'ol/Map.js';
      import View from 'ol/View.js';
      import {getCenter} from 'ol/extent.js';
      import {Image as ImageLayer, Tile as TileLayer} from 'ol/layer.js';
      import {transform} from 'ol/proj.js';
      import Static from 'ol/source/ImageStatic.js';
      import OSM from 'ol/source/OSM.js';
      import {register} from 'ol/proj/proj4.js';
      import proj4 from 'proj4';

      proj4.defs('EPSG:27700', '+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 ' +
          '+x_0=400000 +y_0=-100000 +ellps=airy ' +
          '+towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 ' +
          '+units=m +no_defs');
      register(proj4);

      var imageExtent = [0, 0, 700000, 1300000];

      var map = new Map({
        layers: [
          new TileLayer({
            source: new OSM()
          }),
          new ImageLayer({
            source: new Static({
              url: 'https://upload.wikimedia.org/wikipedia/commons/thumb/1/18/' +
                     'British_National_Grid.svg/2000px-British_National_Grid.svg.png',
              crossOrigin: '',
              projection: 'EPSG:27700',
              imageExtent: imageExtent
            })
          })
        ],
        target: 'map',
        view: new View({
          center: transform(getCenter(imageExtent), 'EPSG:27700', 'EPSG:3857'),
          zoom: 4
        })
      });
    </script>
  </body>
</html>