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.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Static Image</title>
<!-- 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>
<style>
.map {
width: 100%;
height:400px;
}
</style>
</head>
<body>
<div id="map" class="map"></div>
<script src="index.js"></script>
</body>
</html>
import 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import {getCenter} from 'ol/extent';
import ImageLayer from 'ol/layer/Image';
import Projection from 'ol/proj/Projection';
import Static from 'ol/source/ImageStatic';
// 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.
var extent = [0, 0, 1024, 968];
var projection = new Projection({
code: 'xkcd-image',
units: 'pixels',
extent: extent
});
var map = new Map({
layers: [
new ImageLayer({
source: new Static({
attributions: '© <a href="http://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
})
});
{
"name": "static-image",
"dependencies": {
"ol": "6.1.1"
},
"devDependencies": {
"parcel": "1.11.0"
},
"scripts": {
"start": "parcel index.html",
"build": "parcel build --experimental-scope-hoisting --public-url . index.html"
}
}