WMTS

Example of a WMTS source.

This example shows how to manually create the configuration for accessing a WMTS. The WMTS Layer from capabilities example shows how to create the configuration from a GetCapabilities response.

main.js

import Map from 'ol/Map.js';
import OSM from 'ol/source/OSM.js';
import TileLayer from 'ol/layer/Tile.js';
import View from 'ol/View.js';
import WMTS from 'ol/source/WMTS.js';
import WMTSTileGrid from 'ol/tilegrid/WMTS.js';
import {get as getProjection} from 'ol/proj.js';
import {getTopLeft, getWidth} from 'ol/extent.js';

const projection = getProjection('EPSG:3857');
const projectionExtent = projection.getExtent();
const size = getWidth(projectionExtent) / 256;
const resolutions = new Array(19);
const matrixIds = new Array(19);
for (let z = 0; z < 19; ++z) {
  // generate resolutions and matrixIds arrays for this WMTS
  resolutions[z] = size / Math.pow(2, z);
  matrixIds[z] = z;
}

const map = new Map({
  layers: [
    new TileLayer({
      source: new OSM(),
    }),
    new TileLayer({
      opacity: 0.7,
      source: new WMTS({
        attributions:
          'Tiles © <a href="https://mrdata.usgs.gov/geology/state/"' +
          ' target="_blank">USGS</a>',
        url: 'https://mrdata.usgs.gov/mapcache/wmts',
        layer: 'sgmc2',
        matrixSet: 'GoogleMapsCompatible',
        format: 'image/png',
        projection: projection,
        tileGrid: new WMTSTileGrid({
          origin: getTopLeft(projectionExtent),
          resolutions: resolutions,
          matrixIds: matrixIds,
        }),
        style: 'default',
        wrapX: true,
      }),
    }),
  ],
  target: 'map',
  view: new View({
    center: [-11158582, 4813697],
    zoom: 4,
  }),
});

index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>WMTS</title>
    <link rel="stylesheet" href="node_modules/ol/ol.css">
    <style>
      .map {
        width: 100%;
        height: 400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>

    <script type="module" src="main.js"></script>
  </body>
</html>

package.json

{
  "name": "wmts",
  "dependencies": {
    "ol": "10.2.1"
  },
  "devDependencies": {
    "vite": "^3.2.3"
  },
  "scripts": {
    "start": "vite",
    "build": "vite build"
  }
}