百度地图海亮点解决打点多的卡顿问题

来源：互联网发布：webshell powershell 编辑：程序博客网时间：2024/05/22 05:23
<!--添加百度地图--><script type="text/javascript" src=密钥"></script><script src="../../public/js/GetURLParam.js" type="text/javascript"></script><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> //html代码 <body onload="init()"><form id="form1" runat="server"><div style="width:100%" id="container"></div></div></form></body>  //关键代码<script>//默认最大$(document).ready(function(){var height=GetURLParam("height");if(height!=null&&height!="undefined"&&height!=""){$("#container").css("height",height+"px");}else{$("#container").css("height",$(document.body).height());}});var init = function() {var bumenid =document.getElementById("hiddText").value; //部门idvar typeid =document.getElementById("selType").value; //类型idif("<%=scvalue %>"==1){ //首次加载bumenid=-1;} var map = new BMap.Map("container", {}); // 创建Map实例map.centerAndZoom(new BMap.Point(113.376170,22.521573), 5); // 初始化地图,设置中心点坐标和地图级别map.enableScrollWheelZoom(); //启用滚轮放大缩小if (document.createElement(‘canvas‘).getContext) { // 判断当前浏览器是否支持绘制海量点$.ajax({url:‘/CompanyUser/Action.ashx?Action=OA_Map_InfoHaiXiang&ID=‘+bumenid+"&typeid="+typeid,//带参一般处理程序type:‘POST‘,dataType:‘html‘,contentType:"application/json; charset=utf-8",error:function(XMLHttpRequest, textStatus, errorThrown){parent.error("系统建议管理(提交单)数据加载错误");},success:function(result){if(result!=""){var data=eval("("+result+")"); //result 类似这种 [[经度,维度,1]] 这个1 我始终不明白是什么 var points = []; // 添加海量点数据for (var i = 0; i < data.length; i++) {points.push(new BMap.Point(data[i][0],data[i][1]));}var options = {size: BMAP_POINT_SIZE_SMALL,shape: BMAP_POINT_SHAPE_STAR,color: ‘#d340c3‘}var pointCollection = new BMap.PointCollection(points, options); // 初始化PointCollectionpointCollection.addEventListener(‘click‘, function (e) {var Name="";//名称var ads="";//地址var tel="";//电话//关于自定义信息 修改json [[经度,维度,1,名称,地址,电话]]//循环查出值for (var i = 0; i < data.length; i++) {points.push(new BMap.Point(data[i][0],data[i][1]));if(data[i][0]==e.point.lng&&data[i][1]==e.point.lat){//经度==点击的,维度Name=data[i][3];ads=data[i][4];tel=data[i][5];break;}}var point = new BMap.Point(e.point.lng, e.point.lat);var opts = {width: 250, // 信息窗口宽度height: 70, // 信息窗口高度title:"", // 信息窗口标题enableMessage: false,//设置允许信息窗发送短息}var infowindow = new BMap.InfoWindow("名称:"+Name+"<br/>地址:"+ads+"<br/>电话:"+tel, opts);map.openInfoWindow(infowindow, point);});map.addOverlay(pointCollection); // 添加Overlay}}}); } else {alert(‘请在chrome、safari、IE8+以上浏览器查看本示例‘);}}</script>
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