WMS 512x256 Tiles

This example uses OpenLayers v4.0.1. The latest is v.

#### WMS 512x256 Tiles

Example of a WMS layer with 512x256px tiles.

WMS can serve arbitrary tile sizes. This example uses a custom tile grid with non-square tiles.

Related API documentation:

- ol.Map
,
- ol.View
,
- ol.extent
,
- ol.layer.Tile
,
- ol.proj
,
- ol.source.OSM
,
- ol.source.TileWMS
,
- ol.tilegrid.TileGrid

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WMS 512x256 Tiles Example of a WMS layer with 512x256px tiles. var projExtent = ol.proj.get('EPSG:3857').getExtent(); var startResolution = ol.extent.getWidth(projExtent) / 256; var resolutions = new Array(22); for (var i = 0, ii = resolutions.length; i < ii; ++i) { resolutions[i] = startResolution / Math.pow(2, i); } var tileGrid = new ol.tilegrid.TileGrid({ extent: [-13884991, 2870341, -7455066, 6338219], resolutions: resolutions, tileSize: [512, 256] }); var layers = [ new ol.layer.Tile({ source: new ol.source.OSM() }), new ol.layer.Tile({ source: new ol.source.TileWMS({ url: 'https://ahocevar.com/geoserver/wms', params: {'LAYERS': 'topp:states', 'TILED': true}, serverType: 'geoserver', tileGrid: tileGrid }) }) ]; var map = new ol.Map({ layers: layers, target: 'map', view: new ol.View({ center: [-10997148, 4569099], zoom: 4 }) }); <div id="map" class="map"></div>

    <!DOCTYPE html>
    <html>
      <head>
        <title>WMS 512x256 Tiles</title>
        <link rel="stylesheet" href="https://openlayers.org/en/v4.0.1/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/v4.0.1/build/ol.js"></script>
      </head>
      <body>
        <div id="map" class="map"></div>
        <script>
          var projExtent = ol.proj.get('EPSG:3857').getExtent();
          var startResolution = ol.extent.getWidth(projExtent) / 256;
          var resolutions = new Array(22);
          for (var i = 0, ii = resolutions.length; i < ii; ++i) {
            resolutions[i] = startResolution / Math.pow(2, i);
          }
          var tileGrid = new ol.tilegrid.TileGrid({
            extent: [-13884991, 2870341, -7455066, 6338219],
            resolutions: resolutions,
            tileSize: [512, 256]
          });

          var layers = [
            new ol.layer.Tile({
              source: new ol.source.OSM()
            }),
            new ol.layer.Tile({
              source: new ol.source.TileWMS({
                url: 'https://ahocevar.com/geoserver/wms',
                params: {'LAYERS': 'topp:states', 'TILED': true},
                serverType: 'geoserver',
                tileGrid: tileGrid
              })
            })
          ];
          var map = new ol.Map({
            layers: layers,
            target: 'map',
            view: new ol.View({
              center: [-10997148, 4569099],
              zoom: 4
            })
          });
        </script>
      </body>
    </html>