原文链接及内容
这个例子演示了OverviewMap控件的用法。主地图和鹰眼地图加载的图层使用了相同的数据源。请注意，必须为鹰眼显式配置图层。
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 {OverviewMap, defaults as defaultControls} from 'ol/control.js';
const source = new OSM();
const overviewMapControl = new OverviewMap({
layers: [
new TileLayer({
source: source,
}),
],
});
const map = new Map({
controls: defaultControls().extend([overviewMapControl]),
layers: [
new TileLayer({
source: source,
}),
],
target: 'map',
view: new View({
center: [500000, 6000000],
zoom: 7,
}),
});
|
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>Overview Map Control</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>
|
)
