Question

我正在使用Google地图API V3处理位置参考页面，并且将有大约30个标记。我不确定在html页面上是否有所有标记将是托管的，或者它是否应该存储在不同的位置。还包括标记信息（描述）。

我使用Google Maps API V3找到了多个标记的代码，并使用Google自己的参考修改了它。这是代码：

  <script type="text/javascript">

    var infoString = '<div id="content">'+
      '<div id="siteNotice">'+
      '</div>'+
      '<h1 id="firstHeading" class="firstHeading">Auckland 6625</h1>'+
      '<div id="bodyContent">'+
      '<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large ' +
      'sandstone rock formation in the southern part of the '+
      'Northern Territory, central Australia. It lies 335&#160;km (208&#160;mi) '+
      'south west of the nearest large town, Alice Springs; 450&#160;km '+
      '(280&#160;mi) by road. Kata Tjuta and Uluru are the two major '+
      'features of the Uluru - Kata Tjuta National Park. Uluru is '+
      'sacred to the Pitjantjatjara and Yankunytjatjara, the '+
      'Aboriginal people of the area. It has many springs, waterholes, '+
      'rock caves and ancient paintings. Uluru is listed as a World '+
      'Heritage Site.</p>'+
      '<p>Attribution: Uluru, <a href="http://en.wikipedia.org/w/index.php?title=Uluru&oldid=297882194">'+
      'http://en.wikipedia.org/w/index.php?title=Uluru</a> '+
      '(last visited June 22, 2009).</p>'+
      '</div>'+
      '</div>'


    var locations = [
      [infoString, -33.890542, 151.274856, 4],
      ['Coogee Beach', -33.923036, 151.259052, 5],
      ['Cronulla Beach', -34.028249, 151.157507, 3],
      ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
      ['Maroubra Beach', -33.950198, 151.259302, 1]
    ];

    var map = new google.maps.Map(document.getElementById('map'), {
      zoom: 10,
      center: new google.maps.LatLng(-39.92, 151.25),
      mapTypeId: google.maps.MapTypeId.TERRAIN
    });

    var infowindow = new google.maps.InfoWindow();

    var marker, i;
    var markers = new Array();

    for (i = 0; i < locations.length; i++) {  
      marker = new google.maps.Marker({
        position: new google.maps.LatLng(locations[i][1], locations[i][2]),
        map: map
      });

      markers.push(marker);

      google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
          infowindow.setContent(locations[i][0]);
          infowindow.open(map, marker);
        }
      })(marker, i));
    }

    function AutoCenter() {
      //  Create a new viewpoint bound
      var bounds = new google.maps.LatLngBounds();
      //  Go through each...
      $.each(markers, function (index, marker) {
      bounds.extend(marker.position);
      });
      //  Fit these bounds to the map
      map.fitBounds(bounds);
    }
    AutoCenter();

  </script>

由于标记信息（描述）会很长，（不像上面所示）我想为每个标记创建一个变量。

所以我不确定这是否是最有效的方法。请帮忙。

Answer 1

现在你的做法没有任何低效率。虽然将每个描述作为一个单独的变量没有真正的优势，但您也可以从一开始就让它成为locations变量的一部分。除非您从其他地方获取数据（例如ajax请求），否则您可以将其添加到location。

我所做的唯一真正的改变不是拥有2D数组，而是让它成为一维对象数组。

var locations = [
  {
    description: infoString, 
    lat: -33.890542, 
    lng: 151.274856, 
    foo: 4
  },
  {description: 'Coogee Beach', lat: -33.923036, lng: 151.259052, foo: 5},
  {description: 'Cronulla Beach', lat: -34.028249, lng: 151.157507, foo: 3},
  {description: 'Manly Beach', lat: -33.80010128657071, lng: 151.28747820854187, foo: 2},
  {description: 'Maroubra Beach', lat: -33.950198, lng: 151.259302, foo: 1}
];

for (i = 0; i < locations.length; i++) {  
  marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i].lat, locations[i].lng),
    map: map
  });

  markers.push(marker);

  google.maps.event.addListener(marker, 'click', (function(marker, i) {
    return function() {
      infowindow.setContent(locations[i].description);
      infowindow.open(map, marker);
    }
  })(marker, i));
}

Google Maps API V3管理多个标记

1 个答案: