添加一个或多个覆盖物

利用 map 的 add 方法在地图上添加一个或多个覆盖物。

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          <!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>添加一个或多个覆盖物</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%;
        }

        .amap-icon img {
            width: 25px;
            height: 34px;
        }

        .input-card .btn {
            width: 9rem;
        }

        .input-card .btn:first-child {
            margin-right: 1.3rem;
        }
    </style>
</head>
<body>
<div id="container"></div>
<div class="input-card">
    <h4>添加覆盖物</h4>
    <div class="input-item">
        <input id="addOneOverlay" type="button" class="btn" value="添加一个覆盖物"/>
        <input id="addSeveralOverlay" type="button" class="btn" value="添加多个覆盖物"/>
    </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">
    // 创建地图实例
    var map = new AMap.Map("container", {
        zoom: 13,
        center: [116.43, 39.92],
        resizeEnable: true
    });

    // 创建点覆盖物
    var marker = new AMap.Marker({
        position: new AMap.LngLat(116.39, 39.92),
        icon: '//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-default.png',
        offset: new AMap.Pixel(-13, -30)
    });

    var polylinePath = [
        new AMap.LngLat(116.41, 39.93),
        new AMap.LngLat(116.43, 39.91)
    ];

    // 创建线覆盖物
    var polyline = new AMap.Polyline({
        path: polylinePath
    });

    var polygonPath = [
        new AMap.LngLat(116.46, 39.93),
        new AMap.LngLat(116.44, 39.91),
        new AMap.LngLat(116.49, 39.91)
    ];

    // 创建面覆盖物
    var polygon = new AMap.Polygon({
        path: polygonPath
    });

    var addOneOverlayButton = document.getElementById('addOneOverlay');
    var addSeveralOverlayButton = document.getElementById('addSeveralOverlay');

    // 绑定添加一个覆盖物事件
    addOneOverlayButton.onclick = function () {
        map.add(marker);
    };

    // 绑定添加多个覆盖物事件
    addSeveralOverlayButton.onclick = function () {
        map.add([polyline, polygon]);
    };
</script>
</body>
</html>
        

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