原文链接及内容
通过双击和拖动的单一交互来放大/缩小地图。第二次单击时，按住鼠标左键并向上或向下拖动以放大或缩小。也适用于触摸设备。
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 {
DblClickDragZoom,
defaults as defaultInteractions,
} from 'ol/interaction.js';
const map = new Map({
interactions: defaultInteractions().extend([new DblClickDragZoom()]),
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>Double click, Drag and Zoom</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>
|
)
