将标记添加到路径的开始点和结束点Google Maps API v3

我试图在Google地图上实施一些寻求自定义路线服务的方法。我有一堆预制路径，根据两个下拉框中的选择来隐藏和显示。到目前为止它效果很好。但是，我想为路径的开始和结尾添加标记，我该如何去做呢？将标记添加到路径的开始点和结束点Google Maps API v3

A Path, I would like to add a marker to the start and end of the path.

这里是工作示例http://jsfiddle.net/PwFDM/

<!DOCTYPE html> 
<html> 

    <head> 
     <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> 
     <style type="text/css"> 
      html { 
       height: 100% 
      } 
      body { 
       height: 100%; 
       margin: 0; 
       padding: 0 
      } 
      #map_canvas { 
       height: 100% 
      } 
     </style> 
     <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyD9W-wEHa5KzvcntFzGgyTwWtx4wvrs0os&sensor=true"> 

     </script> 
    </head> 

    <body> 
     <div><strong>Start: </strong> 

      <select id="start"> 
       <option>Building 1</option> 
       <option>Building 2</option> 
       <option>Building 3</option> 
       <option>Building 4</option> 
       <option>Building 5</option> 
       <option>Building 6</option> 
       <option>Building 7</option> 
       <option>Building 8</option> 
      </select> <strong>End:</strong> 
      <select id="end"> 
       <option>Building 1</option> 
       <option>Building 2</option> 
       <option>Building 3</option> 
       <option>Building 4</option> 
       <option>Building 5</option> 
       <option>Building 6</option> 
       <option>Building 7</option> 
       <option>Building 8</option> 
      </select> 
      <input type="button" onclick="drawDirections();" value="GO" /> 
     </div> 
     <div id="map" style="width: 100%; height: 100%"></div> 
     <script type="text/javascript"> 
      var mapOptions = { 
       mapTypeId: google.maps.MapTypeId.ROADMAP, 
       center: new google.maps.LatLng(51.507684, 0.063686), 
       zoom: 17 
      }; 
      var map = new google.maps.Map(document.getElementById("map"), mapOptions); 

      // Predefine all the paths 
      var paths = []; 

      paths['1_to_2'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507457, 0.064019)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_3'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507494, 0.063399)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_4'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507709, 0.063301)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_5'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507501, 0.062467)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_6'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['1_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.508445, 0.063944), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //--------------------------------------------------------- 
      paths['2_to_3'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507494, 0.063399)], 
       strokeColor: '#FF0000' 
      }); 
      paths['2_to_4'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507709, 0.063301)], 
       strokeColor: '#FF0000' 
      }); 
      paths['2_to_5'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507501, 0.062467)], 
       strokeColor: '#FF0000' 
      }); 
      paths['2_to_6'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['2_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['2_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507457, 0.064019), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //--------------------------------------------------------- 
      paths['3_to_4'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507494, 0.063399), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507709, 0.063301)], 
       strokeColor: '#FF0000' 
      }); 
      paths['3_to_5'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507494, 0.063399), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507501, 0.062467)], 
       strokeColor: '#FF0000' 
      }); 
      paths['3_to_6'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507494, 0.063399), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['3_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507494, 0.063399), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['3_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507494, 0.063399), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //------------------------------------------------------------- 
      paths['4_to_5'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507709, 0.063301), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507501, 0.062467)], 
       strokeColor: '#FF0000' 
      }); 
      paths['4_to_6'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507709, 0.063301), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['4_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507709, 0.063301), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['4_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507709, 0.063301), 
       new google.maps.LatLng(51.507474, 0.063877), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //--------------------------------------------------------------- 
      paths['5_to_6'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507501, 0.062467), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['5_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507501, 0.062467), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['5_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507501, 0.062467), 
       new google.maps.LatLng(51.50747, 0.062659), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //---------------------------------------------------- 
      paths['6_to_7'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507275, 0.062455), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507275, 0.062455)], 
       strokeColor: '#FF0000' 
      }); 
      paths['6_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507275, 0.062455), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      //-------------------------------------------------------- 
      paths['7_to_8'] = new google.maps.Polyline({ 
       path: [ 
       new google.maps.LatLng(51.507275, 0.062455), 
       new google.maps.LatLng(51.507293, 0.062681), 
       new google.maps.LatLng(51.507287, 0.063839), 
       new google.maps.LatLng(51.507248, 0.065797), 
       new google.maps.LatLng(51.507449, 0.065805), 
       new google.maps.LatLng(51.507442, 0.066004)], 
       strokeColor: '#FF0000' 
      }); 

      function drawDirections() { 
       var start = 1 + document.getElementById('start').selectedIndex; 
       var end = 1 + document.getElementById('end').selectedIndex; 
       var i; 

       if (start === end) { 
        alert('Please choose different buildings'); 
       } else { 
        // Hide all polylines 
        for (i in paths) { 
         paths[i].setOptions({ 
          map: null 
         }); 
        } 

        // Show the route 
        if (typeof paths['' + start + '_to_' + end] !== 'undefined') { 
         paths['' + start + '_to_' + end].setOptions({ 
          map: map 
         }); 
        } else if (typeof paths['' + end + '_to_' + start] !== 'undefined') { 
         paths['' + end + '_to_' + start].setOptions({ 
          map: map 
         }); 
        } 

        var laLatLng = new google.maps.LatLng(51.507684, 0.063686); 
        map.panTo(laLatLng); 
        map.setZoom(17); 
        //panTo(latLng:LatLng) 
       } 
      } 
     </script> 
    </body> 

</html>

来源

2013-02-15 Emmanuel

是有问题吗？ [在路线的开始和结束处添加自定义标记的示例]（http://www.geocodezip.com/v3_directions_custom_iconsC.html），创建和添加自定义标记也在[documentation]（https：// developers.google.com/maps/documentation/javascript/overlays#Markers） – geocodezip 2013-02-15 21:39:08

我知道如何添加标记。我想要的是添加标记到路径的开始和结束。看看这个例子。 – Emmanuel 2013-02-15 21:55:40

你这样做有什么问题？对我来说似乎很简单。 – geocodezip 2013-02-15 22:11:26

要在路径的两端添加标记，做这样的事情：

paths['' + start + '_to_' + end].setOptions({ 
     map: map 
    }); 
    // first point of polyline 
    createMarker(paths['' + start + '_to_' + end].getPath().getAt(0), 'start', 'start', 'green'); 
    // last point of polyline 
    createMarker(paths['' + start + '_to_' + end].getPath().getAt(paths['' + start + '_to_' + end].getPath().getLength()-1), 'end', 'end', 'red');

jsfiddle

来源

2013-02-15 23:07:55 geocodezip

将标记添加到路径的开始点和结束点Google Maps API v3

回答

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