Static Image

Example of a static image layer.

This example uses a static image as a layer source. The map view is configured with a custom projection that translates image coordinates directly into map coordinates.

main.js

import ImageLayer from 'ol/layer/Image';
import Map from 'ol/Map';
import Projection from 'ol/proj/Projection';
import Static from 'ol/source/ImageStatic';
import View from 'ol/View';
import {getCenter} from 'ol/extent';

// Map views always need a projection.  Here we just want to map image
// coordinates directly to map coordinates, so we create a projection that uses
// the image extent in pixels.
const extent = [0, 0, 1024, 968];
const projection = new Projection({
  code: 'xkcd-image',
  units: 'pixels',
  extent: extent,
});

const map = new Map({
  layers: [
    new ImageLayer({
      source: new Static({
        attributions: '© <a href="https://xkcd.com/license.html">xkcd</a>',
        url: 'https://imgs.xkcd.com/comics/online_communities.png',
        projection: projection,
        imageExtent: extent,
      }),
    }),
  ],
  target: 'map',
  view: new View({
    projection: projection,
    center: getCenter(extent),
    zoom: 2,
    maxZoom: 8,
  }),
});

index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Static Image</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>
    <!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
    <script src="https://unpkg.com/[email protected]/dist/elm-pep.js"></script>
    <script type="module" src="main.js"></script>
  </body>
</html>

package.json

{
  "name": "static-image",
  "dependencies": {
    "ol": "7.1.0"
  },
  "devDependencies": {
    "vite": "^3.0.3",
    "@babel/core": "latest"
  },
  "scripts": {
    "start": "vite",
    "build": "vite build"
  }
}