直接上代码
<!DOCTYPE html>
2 <html>
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
6 <style type="text/css">
7 body, html{width: 100%;height: 100%;margin:0;font-family:"微软雅黑";}
8 #allmap {width: 100%; height:500px; overflow: hidden;}
9 #result {width:100%;font-size:12px;}
10 dl,dt,dd,ul,li{
11 margin:0;
12 padding:0;
13 list-style:none;
14 }
15 p{font-size:12px;}
16 dt{
17 font-size:14px;
18 font-family:"微软雅黑";
19 font-weight:bold;
20 border-bottom:1px dotted #000;
21 padding:5px 0 5px 5px;
22 margin:5px 0;
23 }
24 dd{
25 padding:5px 0 0 5px;
26 }
27 li{
28 line-height:28px;
29 }
30 </style>
31 <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=5E5EE28a7615536d1ffe2ce2a3667859"></script>
32 <!--加载鼠标绘制工具-->
33 <script type="text/javascript" src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"></script>
34 <link rel="stylesheet" href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css" />
35 <!--加载检索信息窗口-->
36 <script type="text/javascript" src="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.js"></script>
37 <link rel="stylesheet" href="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.css" />
38 <title>百度地图API功能演示</title>
39 </head>
40 <body>
41 <div id="allmap" style="overflow:hidden;zoom:1;position:relative;">
42 <div id="map" style="height:100%;-webkit-transition: all 0.5s ease-in-out;transition: all 0.5s ease-in-out;">
43 </div>
44 </div>
45 <div id="result">
46 <input type="button" value="获取绘制的覆盖物个数" onclick="alert(overlays.length)"/>
47 <input type="button" value="清除所有覆盖物" onclick="clearAll()"/>
48 <input type="button" value="获取多边形的顶点" onclick="getPoint()"/><br/>
49 <input type="button" value="开启线、面编辑功能" onclick="Editing('enable')"/>
50 <input type="button" value="关闭线、面编辑功能" onclick="Editing('disable')"/>
51 <input type="button" value="显示原有多边形" onclick="showPolygon(this)" /><br/>
52
53 <input type="button" value="画多边形" onclick="draw(BMAP_DRAWING_POLYGON)" />
54 <input type="button" value="画矩形" onclick="draw(BMAP_DRAWING_RECTANGLE)" />
55 <input type="button" value="画线" onclick="draw(BMAP_DRAWING_POLYLINE)" />
56 <!-- <input type="button" value="画点" onclick="draw(BMAP_DRAWING_MARKER)" />-->
57 <span>右键获取任意点的经纬度</span>
58 </div>
59 <div id="resultShape"></div>
60 <div id="shape">坐标为</div>
61
62 <script type="text/javascript">
63 function $(id){
64 return document.getElementById(id);
65 }
66
67 // 百度地图API功能
68 var map = new BMap.Map('map');
69 var poi = new BMap.Point(113.948913,22.530844);
70 map.centerAndZoom(poi, 16);
71 map.enableScrollWheelZoom();
72 var overlays = [];
73 var overlaycomplete = function(e){
74 overlays.push(e.overlay);
75 };
76 var styleOptions = {
77 strokeColor:"red", //边线颜色。
78 fillColor:"red", //填充颜色。当参数为空时，圆形将没有填充效果。
79 strokeWeight: 3, //边线的宽度，以像素为单位。
80 strokeOpacity: 0.8, //边线透明度，取值范围0 - 1。
81 fillOpacity: 0.6, //填充的透明度，取值范围0 - 1。
82 strokeStyle: 'solid' //边线的样式，solid或dashed。
83 }
84
85 //实例化鼠标绘制工具
86 var drawingManager = new BMapLib.DrawingManager(map, {
87 isOpen: false, //是否开启绘制模式
88 //enableDrawingTool: true, //是否显示工具栏
89 drawingToolOptions: {
90 anchor: BMAP_ANCHOR_TOP_RIGHT, //位置
91 offset: new BMap.Size(5, 5), //偏离值
92 },
93 circleOptions: styleOptions, //圆的样式
94 polylineOptions: styleOptions, //线的样式
95 polygonOptions: styleOptions, //多边形的样式
96 rectangleOptions: styleOptions //矩形的样式
97 });
98
99 //添加鼠标绘制工具监听事件，用于获取绘制结果
100 drawingManager.addEventListener('overlaycomplete', overlaycomplete);
101
102 map.addEventListener("rightclick",function(e){
103 if(confirm(e.point.lng + "," + e.point.lat)){
104 $("shape").innerHTML=$("shape").innerHTML+" <br/>("+e.point.lng+","+e.point.lat+")";
105 }
106 });
107 function draw(type){
108 drawingManager.open();
109 drawingManager.setDrawingMode(type);
110 }
111
112 function clearAll() {
113 for(var i = 0; i < overlays.length; i++){
114 map.removeOverlay(overlays[i]);
115 }
116 overlays.length = 0
117 }
118 function getPoint(){
119 $("resultShape").innerHTML='';
120 for(var i = 0; i < overlays.length; i++){
121 var overlay=overlays[i].getPath();
122 $("resultShape").innerHTML=$("resultShape").innerHTML+overlay.length+'边形:<br/>';
123 for(var j = 0; j < overlay.length; j++){
124 var grid =overlay[j];
125 $("resultShape").innerHTML=$("resultShape").innerHTML+(j+1)+"个点:("+grid.lng+","+grid.lat+");<br/>";
126 }
127 }
128 }
129 function Editing(state){
130 for(var i = 0; i < overlays.length; i++){
131 state=='enable'?overlays[i].enableEditing():overlays[i].disableEditing();
132 }
133 }
134
135 function showPolygon(btn){
136 var polygon = new BMap.Polygon([
137 new BMap.Point(113.941853,22.530777),
138 new BMap.Point(113.940487,22.527789),
139 new BMap.Point(113.94788,22.527597),
140 new BMap.Point(113.947925,22.530618)
141 ], styleOptions); //创建多边形
142 map.addOverlay(polygon); //增加多边形
143 // overlays.push(polygon); //是否把该图像加入到编辑和删除行列
144 btn.setAttribute('disabled','false');
145 showText();
146 }
147
148 function showText(){
149 var opts = {
150 position : new BMap.Point(113.941853,22.530777), // 指定文本标注所在的地理位置
151 offset : new BMap.Size(30, 30) //设置文本偏移量
152 }
153 var label = new BMap.Label("不可编辑", opts); // 创建文本标注对象
154 label.setStyle({
155 color : "black",
156 fontSize : "16px",
157 fillColor:"red", //填充颜色。当参数为空时，圆形将没有填充效果。
158 });
159 map.addOverlay(label);
160 }
161 </script>
162 </body>
163 </html>
获取到的四个点的位置信息如上
转载：https://blog.csdn.net/u013239236/article/details
