原文链接及内容

原文链接：https://openlayers.org/en/latest/examples/navigation-controls.html

运行界面

这个例子展示了如何使用ol/control/ZoomToExtent控件。
地图中添加了以下导航控件：

  • ol/control/Zoom(默认添加)
  • ol/control/ZoomToExtent

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 {ZoomToExtent, defaults as defaultControls} from 'ol/control.js';

const map = new Map({
  controls: defaultControls().extend([
    new ZoomToExtent({
      extent: [
        813079.7791264898, 5929220.284081122, 848966.9639063801,
        5936863.986909639,
      ],
    }),
  ]),
  layers: [
    new TileLayer({
      source: new OSM(),
    }),
  ],
  target: 'map',
  view: new View({
    center: [0, 0],
    zoom: 2,
  }),
});

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>Navigation Controls</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>
    <!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
    <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>