覆盖物的添加与移除

使用add方法在地图上添加覆盖物

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">
    <title>覆盖物的添加与移除</title>
  <link rel="stylesheet" href="http://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css" />
    <script src="http://cache.amap.com/lbs/static/es5.min.js"></script>
    <script src="http://webapi.amap.com/maps?v=1.4.15&key=您申请的key值"></script>
    <script type="text/javascript" src="http://cache.amap.com/lbs/static/addToolbar.js"></script>
    <style>
        html,
        body,
        #container {
          width: 100%;
          height: 100%;
        }
        
        label {
            width: 55px;
            height: 26px;
            line-height: 26px;
            margin-bottom: 0;
        }
        button.btn {
            width: 80px;
        }
    </style>
</head>
<body>
<div id="container"></div>
<div class="input-card" style="width:24rem;">
    <h4>添加、删除覆盖物</h4>
    <div class="input-item">
      <label>Marker：</label>
      <button class="btn" id="add-marker" style="margin-right:1rem;">添加Marker</button>
      <button class="btn" id="remove-marker">删除Marker</button>
    </div>
    <div class="input-item">
      <label>Circle：</label>
      <button class="btn" id="add-circle" style="margin-right:1rem;">添加Circle</button>
      <button class="btn" id="remove-circle">删除Circle</button>
    </div>
  </div>

<script>
var map = new AMap.Map('container', {
    resizeEnable: true,
    zoom:11,
    center: [116.397428, 39.90923]
});
    // 构造点标记
var marker = new AMap.Marker({
    icon: "http://webapi.amap.com/theme/v1.3/markers/n/mark_b.png",
    position: [116.405467, 39.907761]
});
// 构造矢量圆形
var circle = new AMap.Circle({
    center: new AMap.LngLat("116.403322", "39.920255"), // 圆心位置
    radius: 1000,  //半径
    strokeColor: "#F33",  //线颜色
    strokeOpacity: 1,  //线透明度
    strokeWeight: 3,  //线粗细度
    fillColor: "#ee2200",  //填充颜色
    fillOpacity: 0.35 //填充透明度
});


//事件绑定
document.querySelector("#add-marker").onclick = function() {
    map.add(marker);
    map.setFitView();
}
document.querySelector("#remove-marker").onclick = function() {
    map.remove(marker);
    map.setFitView();
}
document.querySelector("#add-circle").onclick = function() {
    map.add(circle);
    map.setFitView();
}
document.querySelector("#remove-circle").onclick = function() {
    map.remove(circle);
    map.setFitView();
}

</script>
</body>
</html>

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