baidu自绘取坐标
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>行政区域工具</title>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2"></script>
</head>
<body>
<div style="width:520px;height:340px;border:1px solid gray" id="container"></div>
<p><input id="startBtn" type="button" onclick="startTool();" value="开启取点工具" /><input type="button" onclick="map.clearOverlays();document.getElementById('info').innerHTML = '';points=[];" value="清除" /></p>
<div id="info"></div>
</body>
</html>
<script type="text/javascript">
var map = new BMap.Map("container"); // 创建Map实例
map.centerAndZoom("长丰县", 11); // 初始化地图,设置中心点坐标和地图级别
var key = 1; //开关
var newpoint; //一个经纬度
var points = []; //数组，放经纬度信息
var polyline = new BMap.Polyline(); //折线覆盖物
function startTool(){ //开关函数
if(key==1){
document.getElementById("startBtn").style.background = "green";
document.getElementById("startBtn").style.color = "white";
document.getElementById("startBtn").value = "开启状态";
key=0;
}
else{
document.getElementById("startBtn").style.background = "red";
document.getElementById("startBtn").value = "关闭状态";
key=1;
}
}
map.addEventListener("click",function(e){ //单击地图，形成折线覆盖物
newpoint = new BMap.Point(e.point.lng,e.point.lat);
if(key==0){
// if(points[points.length].lng==points[points.length-1].lng){alert(111);}
points.push(newpoint); //将新增的点放到数组中
polyline.setPath(points); //设置折线的点数组
map.addOverlay(polyline); //将折线添加到地图上
document.getElementById("info").innerHTML += "new BMap.Point(" + e.point.lng + "," + e.point.lat + "),</br>"; //输出数组里的经纬度
}
});
map.addEventListener("dblclick",function(e){ //双击地图，形成多边形覆盖物
if(key==0){
map.disableDoubleClickZoom(); //关闭双击放大
var polygon = new BMap.Polygon(points);
map.addOverlay(polygon); //将折线添加到地图上
}
});
</script>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>行政区域工具</title>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2"></script>
</head>
<body>
<div style="width:520px;height:340px;border:1px solid gray" id="container"></div>
<p><input id="startBtn" type="button" onclick="startTool();" value="开启取点工具" /><input type="button" onclick="map.clearOverlays();document.getElementById('info').innerHTML = '';points=[];" value="清除" /></p>
<div id="info"></div>
</body>
</html>
<script type="text/javascript">
var map = new BMap.Map("container"); // 创建Map实例
map.centerAndZoom("长丰县", 11); // 初始化地图,设置中心点坐标和地图级别
var key = 1; //开关
var newpoint; //一个经纬度
var points = []; //数组，放经纬度信息
var polyline = new BMap.Polyline(); //折线覆盖物
function startTool(){ //开关函数
if(key==1){
document.getElementById("startBtn").style.background = "green";
document.getElementById("startBtn").style.color = "white";
document.getElementById("startBtn").value = "开启状态";
key=0;
}
else{
document.getElementById("startBtn").style.background = "red";
document.getElementById("startBtn").value = "关闭状态";
key=1;
}
}
map.addEventListener("click",function(e){ //单击地图，形成折线覆盖物
newpoint = new BMap.Point(e.point.lng,e.point.lat);
if(key==0){
// if(points[points.length].lng==points[points.length-1].lng){alert(111);}
points.push(newpoint); //将新增的点放到数组中
polyline.setPath(points); //设置折线的点数组
map.addOverlay(polyline); //将折线添加到地图上
document.getElementById("info").innerHTML += "new BMap.Point(" + e.point.lng + "," + e.point.lat + "),</br>"; //输出数组里的经纬度
}
});
map.addEventListener("dblclick",function(e){ //双击地图，形成多边形覆盖物
if(key==0){
map.disableDoubleClickZoom(); //关闭双击放大
var polygon = new BMap.Polygon(points);
map.addOverlay(polygon); //将折线添加到地图上
}
});
</script>