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我正在尝试更改我的谷歌地图标记，以便当缩放小于 5 时，它们会从自定义标记变为星形图像。这是我到目前为止所拥有的（不工作）

//zoom icons to stars at continent level
google.maps.event.addListener(busMap, 'zoom_changed', function() {
    var markerIconStar = google.maps.MarkerImage("icons/star.png");
    var currentZoom = busMap.getZoom();
    if (currentZoom < 5){
        markerSanFran.setIcon(markerIconStar);
        markerLA.setIcon(markerIconStar);
        markerHollywood.setIcon(markerIconStar);
        markerSantaCruz.setIcon(markerIconStar);
        markerSanDiego.setIcon(markerIconStar);
        markerLasVegas.setIcon(markerIconStar);
        markerGrandCan.setIcon(markerIconStar);
        markerMamLakes.setIcon(markerIconStar);
        markerYosemite.setIcon(markerIconStar);
      }

});

http://screamingeagle.travel/map/map2.html是一个您可以看到当前正在运行的其余代码的地方

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1 回答 1

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您在定义 busMap 之前将 zoom_changed 侦听器添加到地图中，因此它永远不会触发。将其添加到定义的 busMap 中（在您的 loadBusMap 函数中）

function loadBusMap() {

//The empty map variable ('busMap') was created above. The line below creates the map, assigning it to this variable. The line below also loads the map into the div with the id 'bus-map' (see code within the 'body' tags below), and applies the 'busMapOptions' (above) to configure this map. 
busMap = new google.maps.Map(document.getElementById("bus-map"), busMapOptions);    

 directionsDisplay = new google.maps.DirectionsRenderer();

//Assigning the two map styles defined above to the map.
busMap.mapTypes.set('map_styles_bus', styled_bus);
busMap.mapTypes.set('map_styles_bus_zoomed', styled_bus_zoomed);
//Setting the one of the styles to display as default as the map loads.
busMap.setMapTypeId('map_styles_bus');

//Calls the function below to load up all the map markers and pop-up boxes.
loadMapMarkers();

google.maps.event.addListener(busMap, 'zoom_changed', function() {
  var markerIconStar = google.maps.MarkerImage("icons/star.png");

  var currentZoom = busMap.getZoom();
  if (currentZoom < 5){
        markerSanFran.setIcon(markerIconStar);
        markerLA.setIcon(markerIconStar);
        markerHollywood.setIcon(markerIconStar);
        markerSantaCruz.setIcon(markerIconStar);
        markerSanDiego.setIcon(markerIconStar);
        markerLasVegas.setIcon(markerIconStar);
        markerGrandCan.setIcon(markerIconStar);
        markerMamLakes.setIcon(markerIconStar);
        markerYosemite.setIcon(markerIconStar);
      }

  });
}
于 2013-09-24T21:38:49.240 回答