椭圆的绘制和编辑

使用AMap.Ellipse和AMap.EllipseEditor绘制和编辑椭圆

源代码编辑器

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <style>
    html,
    body,
    #container {
      width: 100%;
      height: 100%;
    }
    </style>
    <title>椭圆的绘制和编辑</title>
    <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css" />
    <script src="https://webapi.amap.com/maps?v=2.0&key=您申请的key值&plugin=AMap.EllipseEditor"></script>
    <script src="https://a.amap.com/jsapi_demos/static/demo-center/js/demoutils.js"></script>
</head>
<body>
<div id="container"></div>
<div class="input-card" style="width: 120px">
   <button class="btn" onclick="ellipseEditor.open()" style="margin-bottom: 5px">开始编辑</button> 
   <button class="btn" onclick="ellipseEditor.close()">结束编辑</button> 
</div>
<script type="text/javascript">
    var map = new AMap.Map("container", {
        center: [ 116.433322, 39.900255 ],
        zoom: 14
    });

    var ellipse = new AMap.Ellipse({
        center: [116.433322, 39.900255],
        radius: [ 2000, 1000 ], //半径
        borderWeight: 3,
        strokeColor: "#FF33FF", 
        strokeOpacity: 1,
        strokeWeight: 6,
        strokeOpacity: 0.2,
        fillOpacity: 0.4,
        // 线样式还支持 'dashed'
        strokeStyle: 'dashed',
        strokeDasharray: [10, 10], 
        fillColor: '#1791fc',
        zIndex: 50,
    })

    map.add(ellipse);
    // 缩放地图到合适的视野级别
    map.setFitView([ ellipse ])

    var ellipseEditor = new AMap.EllipseEditor(map, ellipse)

    ellipseEditor.on('move', function(event) {
      log.info('触发事件：move')
    })

    ellipseEditor.on('adjust', function(event) {
      log.info('触发事件：adjust')
    })

    ellipseEditor.on('end', function(event) {
      log.info('触发事件： end')
      // event.target 即为编辑后的椭圆对象
    })
</script>
</body>
</html>

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