Question

我正在制作一个谷歌地图项目，需要创建一个点击它的路线。

我的项目有2个点有预定义的lat和lng，我想自己绘制A点和B点的开始和结束，并且不会失去它的功能。

我创建了另一个项目，你可以点击绘制路线，但它没有标记，并且不可拖动，this is my actual project包含完整代码我将在这里发布一个只有我的指示的简短代码。

我希望我第一次点击A点，第二点点B，他们可以拖动它们，就像项目链接一样

function goma()
{   
    var mapDiv = document.getElementById('mappy');
    var mapOptions = {
    zoom: 12, 
    center: new google.maps.LatLng(-23.563594, -46.654239),
    mapTypeId : google.maps.MapTypeId.ROADMAP
    }
    pode ser ROADMAP, SATELLITE, HYBRID, TERRAIN
    map = new google.maps.Map( mapDiv, mapOptions ); 

    //Render route, etc.
    ren = new google.maps.DirectionsRenderer( {'draggable':true} );
    ren.setMap(map);
    ren.setPanel(document.getElementById("directionsPanel"));
    ser = new google.maps.DirectionsService();

    //Create the route
    ser.route({ 'origin': new google.maps.LatLng(-23.563594, -46.654129), 'destination':  new google.maps.LatLng(
-23.563672, -46.640396), 'travelMode': google.maps.DirectionsTravelMode.DRIVING},function(res,sts) {
        if(sts=='OK')ren.setDirections(res);    
    })      

}

我在这里更新我的代码，我只做了wayA，这是第一个航路点，第二个是预定义的latLng，你点击它，它获取latLng并放入'origin'。

    google.maps.event.addListener(map, "click", function(event) {
            wayA = new google.maps.Marker({ 
              position: event.latLng,
              map: map                
            });
     });
    ren = new google.maps.DirectionsRenderer( {'draggable':true} );
    ren.setMap(map);
    ren.setPanel(document.getElementById("directionsPanel"));
    ser = new google.maps.DirectionsService();          
    ser.route({ 'origin': wayA, 'destination':  new google.maps.LatLng(
-23.563672, -46.640396), 'travelMode': google.maps.DirectionsTravelMode.DRIVING},function(res,sts) {
        if(sts=='OK')ren.setDirections(res);    
    })

This is my test with the full code

Answer 1

概念：（听起来这就是你想要的）

向地图添加点击事件监听器
当用户点击地图时添加一个可拖动的标记（我会添加一个点击监听器，以便他们可以通过点击删除它）
当用户第二次点击地图时添加第二个可拖动标记
添加第二个标记时，使用两个标记的位置调用路线服务。
如果拖动任一标记，请再次调用路线服务。

（如果您正在尝试并遇到问题，代码或实时链接会有所帮助）

你缺少＃3和＃4

Working example

代码段

var map, ren, ser;
var data = {};
var data2 = {};
var marker;
var infowindow;
var doMark = true;
var directionsDisplay;

var wayA;
var wayB;

//Função de Inicio

function goma() {

  var mapDiv = document.getElementById('mappy');

  var mapOptions = {
      zoom: 12,

      center: new google.maps.LatLng(-23.563594, -46.654239),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    //Cria o mapa do google, coloca as definições do mapa, como tipo de visualização, pode ser ROADMAP, SATELLITE, HYBRID, TERRAIN
  map = new google.maps.Map(mapDiv, mapOptions);


  var control = document.createElement('DIV');
  control.style.padding = '1px';
  control.style.border = '1px solid #000';
  control.style.backgroundColor = 'white';
  control.style.cursor = 'pointer';
  control.innerHTML = '<img src="http://i47.tinypic.com/2dlp2fc.jpg" border="0" alt="Image and video hosting by TinyPic">';
  control.index = 1;


  map.controls[google.maps.ControlPosition.TOP_RIGHT].push(control);

  google.maps.event.addDomListener(control, 'click', function() {
    doMark = false;
    markNow();


  });

  google.maps.event.addListener(map, "click", function(event) {
    if (!wayA) {
      wayA = new google.maps.Marker({

        position: event.latLng,
        map: map

      });
    } else {
      wayB = new google.maps.Marker({

        position: event.latLng,
        map: map

      });

      //Renderiza a rota, o draggable é diz se o waypoint é arrastavel ou não
      ren = new google.maps.DirectionsRenderer({
        'draggable': true
      });
      ren.setMap(map);
      ren.setPanel(document.getElementById("directionsPanel"));
      ser = new google.maps.DirectionsService();

      //Cria a rota, o DirectionTravelMode pode ser: DRIVING, WALKING, BICYCLING ou TRANSIT
      ser.route({
        'origin': wayA.getPosition(),
        'destination': wayB.getPosition(),
        'travelMode': google.maps.DirectionsTravelMode.DRIVING
      }, function(res, sts) {
        if (sts == 'OK') ren.setDirections(res);
      })

    }
  });
}

var html = "<table>" +
  "<tr><td>Nome:</td> <td><input type='text' id='name'/> </td> </tr>" +
  "<tr><td>Endereco:</td> <td><input type='text' id='address'/></td> </tr>" +
  "<tr><td>Tipo:</td> <td><select id='type'>" +
  "<option value='oficina' SELECTED>oficina</option>" +
  "<option value='restaurante'>restaurante</option>" +
  "</select> </td></tr>" +
  "<tr><td></td><td><input type='button' value='Salvar' onclick='saveData()'/></td></tr>";
infowindow = new google.maps.InfoWindow({
  content: html
});

google.maps.event.addDomListener(window, 'load', goma);

html,
body {
  height: 100%;
  width: 100%;
}

<script src="http://maps.google.com/maps/api/js"></script>
<div id="mappy" style="float:left;width:70%; height:100%"></div>
<div id="directionsPanel" style="float:right;width:30%;height 100%"></div>
<div>
  <label>Endereco</label>
</div>

Google地图v3上的可点击行驶方向

1 个答案: