Rendering a COG as a tiled layer.
Tiled data from a Cloud Optimized GeoTIFF (COG) can be rendered as a layer. In this example, a single 3-band GeoTIFF is used to render RGB data.
import GeoTIFF from 'ol/source/GeoTIFF.js';
import Map from 'ol/Map.js';
import TileLayer from 'ol/layer/WebGLTile.js';
const source = new GeoTIFF({
sources: [
{
url: 'https://sentinel-cogs.s3.us-west-2.amazonaws.com/sentinel-s2-l2a-cogs/36/Q/WD/2020/7/S2A_36QWD_20200701_0_L2A/TCI.tif',
},
],
});
const map = new Map({
target: 'map',
layers: [
new TileLayer({
source: source,
}),
],
view: source.getView(),
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Cloud Optimized GeoTIFF (COG)</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>
{
"name": "cog",
"dependencies": {
"ol": "10.2.1"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}