原文链接及内容
当地图因调整大小而变得太小时，属性控件会自动折叠。具体地，当地图的宽度小于600px时，则collapsible选项会被设置为true。效果如下图：
main.js代码如下：
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| import Map from 'ol/Map.js';
import OSM from 'ol/source/OSM.js';
import TileLayer from 'ol/layer/Tile.js';
import View from 'ol/View.js';
import {Attribution, defaults as defaultControls} from 'ol/control.js';
const attribution = new Attribution({
collapsible: false,
});
const map = new Map({
layers: [
new TileLayer({
source: new OSM(),
}),
],
controls: defaultControls({attribution: false}).extend([attribution]),
target: 'map',
view: new View({
center: [0, 0],
zoom: 2,
}),
});
function checkSize() {
const small = map.getSize()[0] < 600;
attribution.setCollapsible(small);
attribution.setCollapsed(small);
}
window.addEventListener('resize', checkSize);
checkSize();
|
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>Attributions</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 src="https://cdn.jsdelivr.net/npm/elm-pep@1.0.6/dist/elm-pep.js"></script>
<script type="module" src="main.js"></script>
</body>
</html>
|
)
