• 给地图增加自定义覆盖物


    <!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 { 100%;height: 100%;margin:0;font-family:"微软雅黑";}
            #allmap{100%;height:500px;}
            p{margin-left:5px; font-size:14px;}
        </style>
        <script type="text/javascript" src="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="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>
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  • 原文地址:https://www.cnblogs.com/iriliguo/p/7047497.html
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