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.
import 'ol/ol.css';
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,
}),
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Static Image</title>
<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
<script src="https://unpkg.com/[email protected]/dist/elm-pep.js"></script>
<!-- The lines below are only needed for old environments like Internet Explorer and Android 4.x -->
<script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,TextDecoder"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/3.18.3/minified.js"></script>
<style>
.map {
width: 100%;
height:400px;
}
</style>
</head>
<body>
<div id="map" class="map"></div>
<script src="main.js"></script>
</body>
</html>
{
"name": "static-image",
"dependencies": {
"ol": "6.14.1"
},
"devDependencies": {
"parcel": "^2.0.0"
},
"scripts": {
"start": "parcel index.html",
"build": "parcel build --public-url . index.html"
}
}