百度地图DEMO-路线导航，测距，标点

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>全插件</title>
<script type="text/javascript" src="http://api.map.baidu.com/getscript?v=2.0&ak=yzmcuroeXsnCGNAjnAtvUp9Xh8eXcrTm&services=&t=20180823194355"></script>
<script type="text/javascript" src="http://api.map.baidu.com/library/DistanceTool/1.2/src/DistanceTool_min.js"></script>
</head>
<body>
<div style="width:520px;height:340px;border:1px solid gray" id="container"></div>
<input type="button" value="开启测距" onclick="myDis.open();" />
<input type="button" value="关闭测距" onclick="myDis.close()" />
<div id="results" style="font-size:13px;margin-top:10px;"></div>
</body>
</html>
<script type="text/javascript">
//map.addControl(new BMap.NavigationControl()); // 添加平移缩放控件
//map.addControl(new BMap.MapTypeControl({anchor: BMAP_ANCHOR_TOP_LEFT}));//地图|卫星|三维 控件
//map.setCurrentCity("济南");
//百度map API  http://dev.baidu.com/wiki/static/map/API/examples/?v=1.3&3_0#3&0
var map = new BMap.Map("container");          // 创建Map实例
var point = new BMap.Point(117.025, 36.666);  // 创建点坐标
var myDis = new BMapLib.DistanceTool(map);   //测距插件
map.centerAndZoom(point,13);                  // 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。
map.enableKeyboard();                         // 启用键盘操作。
map.addControl(new BMap.ScaleControl());         // 添加比例尺控件
map.addControl(new BMap.OverviewMapControl());   //添加缩略地图控件
var opts = {type: BMAP_NAVIGATION_CONTROL_SMALL} // 添加平移缩放控件(个性化)
map.addControl(new BMap.NavigationControl(opts));// 添加平移缩放控件(个性化)
map.addControl(new BMap.MapTypeControl({mapTypes: [BMAP_NORMAL_MAP,BMAP_HYBRID_MAP]}));//地图|混合 控件
//=======================================
var contextMenu = new BMap.ContextMenu();//创建右键对象
var txtMenuItem = [
  { text:'折线测距',callback:function(){myDis.open()}},
  { text:'在此添加标注',
   callback:function(p){
    var marker = new BMap.Marker(p), px = map.pointToPixel(p);
    map.addOverlay(marker);
   }
  }
 ];
for(var i=0; i < txtMenuItem.length; i++){
 contextMenu.addItem(new BMap.MenuItem(txtMenuItem[i].text,txtMenuItem[i].callback,100));
 if(i==1 || i==3) {
  contextMenu.addSeparator();
 }
}
map.addContextMenu(contextMenu);
//===================开始 结束 测距 start===================
var transit = new BMap.DrivingRoute(map, {
  renderOptions: {map: map,panel: "results", autoViewport: true},           
  onMarkersSet: function(pois){
   var start = pois[0].marker, end = pois[1].marker;
   start.enableDragging();//开启起点拖拽功能
   end.enableDragging();//开启终点拖拽功能
   start.addEventListener("dragend",function(e){
    map.clearOverlays();
    transit.search(e.point,end.getPosition());
   });
   end.addEventListener("dragend",function(e){
    map.clearOverlays();                     
    transit.search(start.getPosition(),e.point);
   });
  }
});
transit.search("南京南站","南京站");
//===================开始 结束 测距 end  ===================
 //默认红色标注
//var marker = new BMap.Marker(new BMap.Point(116.987, 36.666));  // 创建标注
//map.addOverlay(marker);              // 将标注添加到地图中

//var myPushpin = new BMap.PushpinTool(map);          // 创建标注工具实例  
//myPushpin.addEventListener("markend", function(e){  // 监听事件，提示标注点坐标信息
// alert("您标注的位置："+e.marker.getPoint().lng+","+e.marker.getPoint().lat);//获取坐标
// alert("您标注的位置："+e.point.lng+","+e.point.lat);//另一种获取坐标
//});  
//myPushpin.open();     

//var myP1 = new BMap.Point(117.025, 36.666);    //起点
//var myP2 = new BMap.Point(117, 36.666);    //终点

//var driving2 = new BMap.DrivingRoute(map, {renderOptions:{map: map, autoViewport: true}});    //驾车实例
//driving2.search(myP1, myP2);    //显示一条公交线路
//创建小狐狸
//var pt = new BMap.Point(116.991, 36.666);
//var myIcon = new BMap.Icon("http://dev.baidu.com/wiki/static/map/API/img/fox.gif", new BMap.Size(300,157));
//var marker = new BMap.Marker(pt,{icon:myIcon});  // 创建标注
//map.addOverlay(marker);              // 将标注添加到地图中

//让小狐狸说话（创建信息窗口）
//var infoWindow = new BMap.InfoWindow("<p style='font-size:14px;'>哈哈，你看见我啦！我可不常出现哦！</p>");
//marker.addEventListener("click", function(){this.openInfoWindow(infoWindow);});
//marker.enableDragging(true); // 设置标注可拖拽


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