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切换Google Maps标记

[英]Toggle Google Maps markers

我从另一篇文章中摘取了一些代码来开始我的工作,但是试图让它做我需要的事情。 我需要设置功能以在选中标记时显示/隐藏标记,还需要为标记类别(例如,步行,钓鱼)分配适当的图标。

首先,我需要使show hide函数正常工作,而目前还没有。

您可以在此处找到演示... http://jsfiddle.net/huMtu/

您遇到的问题是, locations变量是一个信息数组-实际上不是Google Map上的标记-这意味着您无法在其上调用setVisible()方法。

您需要做的是将每个标记存储在单独的数组中,然后针对此新数组的元素调用setVisible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");  

工作提琴 (带有公开可用的图标)

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