百度地图接口绘制任意多边形并获取每个点的经纬度
<!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; overflow: hidden;} #result {width:100%;font-size:12px;} dl,dt,dd,ul,li{ margin:0; padding:0; list-style:none; } p{font-size:12px;} dt{ font-size:14px; font-family:"微软雅黑"; font-weight:bold; border-bottom:1px dotted #000; padding:5px 0 5px 5px; margin:5px 0; } dd{ padding:5px 0 0 5px; } li{ line-height:28px; } </style> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=F0i6SrLmHquLVNLCqpExxPrj8mWVdFwx"></script> <!--加载鼠标绘制工具--> <script type="text/javascript" src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"></script> <link rel="stylesheet" href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css" /> <!--加载检索信息窗口--> <script type="text/javascript" src="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.js"></script> <link rel="stylesheet" href="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.css" /> <title>百度地图API功能演示</title> </head> <body> <div id="allmap" style="overflow:hidden;zoom:1;position:relative;"> <div id="map" style="height:100%;-webkit-transition: all 0.5s ease-in-out;transition: all 0.5s ease-in-out;"> </div> </div> <div id="result"> <input type="button" value="获取绘制的覆盖物个数" onclick="alert(overlays.length)"/> <input type="button" value="清除所有覆盖物" onclick="clearAll()"/> <input type="button" value="获取多边形的顶点" onclick="getPoint()"/><br/> <input type="button" value="开启线、面编辑功能" onclick="Editing('enable')"/> <input type="button" value="关闭线、面编辑功能" onclick="Editing('disable')"/> <input type="button" value="显示原有多边形" onclick="showPolygon(this)" /><br/> <input type="button" value="画多边形" onclick="draw(BMAP_DRAWING_POLYGON)" /> <input type="button" value="画矩形" onclick="draw(BMAP_DRAWING_RECTANGLE)" /> <input type="button" value="画线" onclick="draw(BMAP_DRAWING_POLYLINE)" /> <!-- <input type="button" value="画点" onclick="draw(BMAP_DRAWING_MARKER)" />--> <span>右键获取任意点的经纬度</span> </div> <div id="resultShape"></div> <div id="shape">坐标为</div> <script type="text/javascript"> function $(id){ return document.getElementById(id); } // 百度地图API功能 var map = new BMap.Map('map'); var poi = new BMap.Point(113.948913,22.530844); map.centerAndZoom(poi, 16); map.enableScrollWheelZoom(); var overlays = []; var overlaycomplete = function(e){ overlays.push(e.overlay); }; var styleOptions = { strokeColor:"red", //边线颜色。 fillColor:"red", //填充颜色。当参数为空时，圆形将没有填充效果。 strokeWeight: 3, //边线的宽度，以像素为单位。 strokeOpacity: 0.8, //边线透明度，取值范围0 - 1。 fillOpacity: 0.6, //填充的透明度，取值范围0 - 1。 strokeStyle: 'solid' //边线的样式，solid或dashed。 } //实例化鼠标绘制工具 var drawingManager = new BMapLib.DrawingManager(map, { isOpen: false, //是否开启绘制模式 //enableDrawingTool: true, //是否显示工具栏 drawingToolOptions: { anchor: BMAP_ANCHOR_TOP_RIGHT, //位置 offset: new BMap.Size(5, 5), //偏离值 }, circleOptions: styleOptions, //圆的样式 polylineOptions: styleOptions, //线的样式 polygonOptions: styleOptions, //多边形的样式 rectangleOptions: styleOptions //矩形的样式 }); //添加鼠标绘制工具监听事件，用于获取绘制结果 drawingManager.addEventListener('overlaycomplete', overlaycomplete); map.addEventListener("rightclick",function(e){ if(confirm(e.point.lng + "," + e.point.lat)){ $("shape").innerHTML=$("shape").innerHTML+" <br/>("+e.point.lng+","+e.point.lat+")"; } }); function draw(type){ drawingManager.open(); drawingManager.setDrawingMode(type); } function clearAll() { for(var i = 0; i < overlays.length; i++){ map.removeOverlay(overlays[i]); } overlays.length = 0 } function getPoint(){ $("resultShape").innerHTML=''; for(var i = 0; i < overlays.length; i++){ var overlay=overlays[i].getPath(); $("resultShape").innerHTML=$("resultShape").innerHTML+overlay.length+'边形:<br/>'; for(var j = 0; j < overlay.length; j++){ var grid =overlay[j]; $("resultShape").innerHTML=$("resultShape").innerHTML+(j+1)+"个点:("+grid.lng+","+grid.lat+");<br/>"; } } } function Editing(state){ for(var i = 0; i < overlays.length; i++){ state=='enable'?overlays[i].enableEditing():overlays[i].disableEditing(); } } function showPolygon(btn){ var polygon = new BMap.Polygon([ new BMap.Point(113.941853,22.530777), new BMap.Point(113.940487,22.527789), new BMap.Point(113.94788,22.527597), new BMap.Point(113.947925,22.530618) ], styleOptions); //创建多边形 map.addOverlay(polygon); //增加多边形 // overlays.push(polygon); //是否把该图像加入到编辑和删除行列 btn.setAttribute('disabled','false'); showText(); } function showText(){ var opts = { position : new BMap.Point(113.941853,22.530777), // 指定文本标注所在的地理位置 offset : new BMap.Size(30, 30) //设置文本偏移量 } var label = new BMap.Label("不可编辑", opts); // 创建文本标注对象 label.setStyle({ color : "black", fontSize : "16px", fillColor:"red", //填充颜色。当参数为空时，圆形将没有填充效果。 }); map.addOverlay(label); } </script> </body> </html>
转摘：http://blog.csdn.net/superdog007/article/details/52795216