高德地图 JS API示例-信息窗体-信息窗体锚点

<!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>默认点标记</title>
    <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
    <style>
        html, body, #container {
            height: 100%;
            width: 100%;
        }

        .input-card{
            width: 32rem;
            z-index: 170;
        }

        .input-card .btn{
            margin-right: .8rem;
        }

        .input-card .btn:last-child{
            margin-right: 0;
        }
    </style>
</head>
<body>
<div id="container"></div>

<div class="input-card" style="width:18rem">
    <h4>设置 anchor</h4>
    <div id="coordinate">
      <div class="input-item"><input id="top-left" name="language" type="radio" checked="checked"><span class="input-text">top-left</span></div>
      <div class="input-item"><input id="top-center" name="language" type="radio"><span class="input-text">top-center</span></div>
      <div class="input-item"><input id="top-right" name="language" type="radio"><span class="input-text">top-right</span></div>
      <div class="input-item"><input id="middle-left" name="language" type="radio"><span class="input-text">middle-left</span></div>
      <div class="input-item"><input id="center" name="language" type="radio"><span class="input-text">center</span></div>
      <div class="input-item"><input id="middle-right" name="language" type="radio"><span class="input-text">middle-right</span></div>
      <div class="input-item"><input id="bottom-left" name="language" type="radio"><span class="input-text">bottom-left</span></div>
      <div class="input-item"><input id="bottom-center" name="language" type="radio"><span class="input-text">bottom-center</span></div>
      <div class="input-item"><input id="bottom-right" name="language" type="radio"><span class="input-text">bottom-right</span></div>

    </div>
</div>

<script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值"></script>
<script type="text/javascript">
    var map = new AMap.Map("container", {
        center: [116.402023,39.906977],
        zoom: 13,
        viewMode: '3D',
    });



    //构建自定义信息窗体
    var infoWindow = new AMap.InfoWindow({
        anchor: 'top-left',
        content: '这是信息窗体！这是信息窗体！',
    });

    infoWindow.open(map,[116.401337,39.907886])
    
    function setAnchor(){
        var anchor = this.id;
        infoWindow.setAnchor(anchor)
    }
    //绑定radio点击事件
    var radios = document.querySelectorAll("#coordinate input");
    radios.forEach(function(ratio) {
      ratio.onclick = setAnchor;
    });

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