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给地图增加自定义覆盖物

2024-10-08 11:35:01   211人阅读

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<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html {width: 100%;height: 100%;margin:0;font-family:"微软雅黑";}
        #allmap{width:100%;height:500px;}
        p{margin-left:5px; font-size:14px;}
    </style>
    <script type="text/javascript" src=http://www.mamicode.com/"http://api.map.baidu.com/api?v=2.0&ak=yaDRGoon5YoRzAAwH781yUgn"></script>
    <title>添加自定义覆盖物</title>
</head>
<body>
<div id="allmap"></div>
<div id="control">
    <input type="button" onclick="hide_show()" value=http://www.mamicode.com/"点击">
</div>
</body>
</html>
<script type="text/javascript">
    // 百度地图API功能
    var mp = new BMap.Map("allmap");//创建地图实例
    mp.centerAndZoom(new BMap.Point(116.3964,39.9093), 15);
    ////地图初始化，设置中心点坐标和地图级别。地图必须经过初始化才可以执行其他操作
    mp.enableScrollWheelZoom();
    // 复杂的自定义覆盖物
    function ComplexCustomOverlay(point){
        this._point = point;

    }
    ComplexCustomOverlay.prototype = new BMap.Overlay();
    ComplexCustomOverlay.prototype.initialize = function(map){
        this._map = map;
        var div = this._div = document.createElement("div");
        div.style.position = "absolute";
        div.style.zIndex = BMap.Overlay.getZIndex(this._point.lat);//聚合功能?
        div.style.height = "45px";
        div.style.width="45px";

        var arrow = this._arrow = document.createElement("img");
        arrow.src = "1.png";/*加入图片路径*/
        arrow.style.width = "100px";
        arrow.style.height = "100px";
        arrow.style.top = "22px";
        arrow.style.left = "10px";
        div.appendChild(arrow);


        mp.getPanes().labelPane.appendChild(div);//getPanes(),返回值:MapPane,返回地图覆盖物容器列表  labelPane呢???

        return div;

    }

    ComplexCustomOverlay.prototype.draw = function(){
        var map = this._map;
        var pixel = map.pointToOverlayPixel(this._point);
        this._div.style.left = pixel.x - parseInt(this._arrow.style.left) + "px";
        this._div.style.top  = pixel.y - 30 + "px";
    }


    var myCompOverlay = new ComplexCustomOverlay(new BMap.Point(116.407845,39.914101));

    mp.addOverlay(myCompOverlay);//将标注添加到地图中

    var show=0;
    function hide_show(){
        if(show==0){
            myCompOverlay.hide();
            show=1;
        }else{
            myCompOverlay.show();
            show=0;
        }
    }

</script>

 

给地图增加自定义覆盖物


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