原文链接及内容
此示例使用npm包ol-stac，它为OpenLayers添加了STAC支持。例如，它可以将SpatioTemporal Asset Catalog（STAC）Items中的几何图形和资产显示为图层组。更多示例请访问：https://m-mohr.github.io/ol-stac/en/latest/examples/ 。
main.js代码如下：
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| import Map from 'ol/Map.js';
import OSM from 'ol/source/OSM.js';
import STAC from 'ol-stac';
import TileLayer from 'ol/layer/WebGLTile.js';
import View from 'ol/View.js';
import proj4 from 'proj4';
import {register} from 'ol/proj/proj4.js';
register(proj4);
const layer = new STAC({
url: 'https://s3.us-west-2.amazonaws.com/sentinel-cogs/sentinel-s2-l2a-cogs/10/T/ES/2022/7/S2A_10TES_20220726_0_L2A/S2A_10TES_20220726_0_L2A.json',
});
const background = new TileLayer({
source: new OSM(),
});
const map = new Map({
target: 'map',
layers: [background, layer],
view: new View({
center: [0, 0],
zoom: 0,
}),
});
layer.on('sourceready', () => {
const view = map.getView();
view.fit(layer.getExtent());
});
|
界面布局文件index.html代码如下：
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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>STAC support</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>
|
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