小编典典

Google Maps JS API v3 - 简单的多标记示例

all

Google Maps Api 相当新。我有一组数据,我想循环浏览并在地图上绘制。看起来相当简单,但我发现的所有多标记教程都相当复杂。

让我们以谷歌网站的数据数组为例:

var locations = [
  ['Bondi Beach', -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]
];

我只是想绘制所有这些点并infoWindow在单击以显示名称时弹出一个窗口。


阅读 107

收藏
2022-03-03

共1个答案

小编典典

这是我可以将其简化为的最简单的方法:

<!DOCTYPE html>
<html> 
<head> 
  <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> 
  <title>Google Maps Multiple Markers</title> 
  <script src="http://maps.google.com/maps/api/js?key=YOUR_API_KEY" 
          type="text/javascript"></script>
</head> 
<body>
  <div id="map" style="width: 500px; height: 400px;"></div>

  <script type="text/javascript">
    var locations = [
      ['Bondi Beach', -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(-33.92, 151.25),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });

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

    var marker, i;

    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
      });

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

馃懆鈥嶐炼。在 Codepen
上编辑/分叉。

截屏

谷歌地图多个标记

将回调参数传递给方法时会发生一些关闭魔术addListener。如果您不熟悉闭包的工作原理,这可能是一个相当棘手的话题。如果是这种情况,我建议查看以下
Mozilla 文章以获得简要介绍:

开发中心:使用闭包](https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Working_with_Closures)

2022-03-03