设置顶级区划

使用DistrictCluster，设置想要展示的区划范围。

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          <!-- 重点：topAdcodes -->
<!doctype html>
<html lang="zh-CN">

<head>
    <!-- 原始地址：//webapi.amap.com/ui/1.1/ui/geo/DistrictCluster/examples/top-adcodes.html -->
    <base href="//webapi.amap.com/ui/1.1/ui/geo/DistrictCluster/examples/" />
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>设置顶级区划</title>
    <style>
    html,
    body,
    #container {
        width: 100%;
        height: 100%;
        margin: 0px;
    }
    
    #loadingTip {
        position: absolute;
        z-index: 9999;
        top: 0;
        left: 0;
        padding: 3px 10px;
        background: red;
        color: #fff;
        font-size: 14px;
    }
    </style>
</head>

<body>
    <div id="container"></div>
    <script type="text/javascript" src='//webapi.amap.com/maps?v=2.0&key=您申请的key值'></script>
    <!-- UI组件库 1.0 -->
    <script src="//webapi.amap.com/ui/1.1/main.js?v=1.1.1"></script>
    <script type="text/javascript">
    //创建地图
    var map = new AMap.Map('container', {
        zoom: 5
    });

    function initPage(DistrictCluster, $) {

        var distCluster = new DistrictCluster({
            map: map, //所属的地图实例
            zIndex:11,
            //设置显示3个省
            topAdcodes: [130000, 610000, 340000],
            autoSetFitView: false,
            getPosition: function(item) {

                if (!item) {
                    return null;
                }

                var parts = item.split(',');

                //返回经纬度
                return [parseFloat(parts[0]), parseFloat(parts[1])];
            }
        });

        window.distCluster = distCluster;

        $('<div id="loadingTip">加载数据，请稍候...</div>').appendTo(document.body);
        $.get('https://a.amap.com/amap-ui/static/data/10w.txt', function(csv) {

            $('#loadingTip').remove();

            var data = csv.split('\n');

            distCluster.setData(data);
        });
    }

    //加载相关组件
    AMapUI.load(['ui/geo/DistrictCluster', 'lib/$'], function(DistrictCluster, $) {

        window.DistrictCluster = DistrictCluster;

        //启动页面
        initPage(DistrictCluster, $);
    });
    </script>
</body>

</html>
        
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