切换Google地图标记

Question

我从另一篇文章中取了一些代码来启动我,但试图让它做我需要的东西.我需要设置功能以在检查时显示/隐藏标记,并为标记类别分配适当的图标,即Walk,Fish.

首先,我需要让show hide功能正常工作,而这些功能目前还没有.

你可以在这里找到一个演示...... http://jsfiddle.net/huMtu/

Answer 1

你遇到的问题是locations变量是一个信息数组 - 它实际上并不是谷歌地图上的标记 - 这意味着你无法调用setVisible()它上面的方法....

你需要做的是将每个标记存储在一个单独的数组中,然后setVisible针对这个新数组的元素调用该方法....我已经更新了JSFiddle - > http://jsfiddle.net/huMtu/1/

这是JS部分:

var markers = new Array(); // Used to store the google markers
    var locations = [
      ['Bondi Beach', 'Some text goes here<br />text', 'Walk', -33.890542, 151.274856, 4],
      ['Coogee Beach', 'Some text goes here<br />text', 'Fish', -33.923036, 151.259052, 5],
      ['Cronulla Beach', 'Some text goes here<br />text', 'Fish', -34.028249, 151.157507, 3],
      ['Manly Beach', 'Some text goes here<br />text', 'Walk', -33.80010128657071, 151.28747820854187, 2],
      ['Maroubra Beach', 'Some text goes here<br />text', 'Walk', -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][3], locations[i][4]),
        map: map
      });

        markers.push(marker); // Add the current marker to the array for later processing

      google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
          infowindow.setContent(locations[i][0]+"<br />"+locations[i][2]+"<br />"+locations[i][1]);
          infowindow.open(map, marker);
        }
      })(marker, i));
    }

    // == shows all markers of a particular category, and ensures the checkbox is checked ==
      function show(category) {
        for (var i=0; i<locations.length; i++) {
          if (locations[i][2] == category) {
            markers[i].setVisible(true); // call the setVisible method of the marker
          }
        }
      }

      // == hides all markers of a particular category, and ensures the checkbox is cleared ==
      function hide(category) {
        for (var i=0; i<locations.length; i++) {
          if (locations[i][2] == category) {
            markers[i].setVisible(false); // call the setVisible method of the marker
          }
        }
      }

      // == show or hide the categories initially ==
        show("Walk");
        hide("Fish");  

工作小提琴(带有公开图标)