Google Maps Max Markers

Question

我用javascript不太好.有谁知道如何增加Google地图上显示的标记数量.我从MySQL数据库中提取了大约300个位置,但它只绘制了50个左右.

这是我正在使用的代码:

    <script type="text/javascript">
//<![CDATA[

var iconBlue = new GIcon(); 
iconBlue.image = 'http://labs.google.com/ridefinder/images/mm_20_blue.png';
iconBlue.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png';
iconBlue.iconSize = new GSize(12, 20);
iconBlue.shadowSize = new GSize(22, 20);
iconBlue.iconAnchor = new GPoint(6, 20);
iconBlue.infoWindowAnchor = new GPoint(5, 1);

var iconRed = new GIcon(); 
iconRed.image = 'http://labs.google.com/ridefinder/images/mm_20_red.png';
iconRed.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png';
iconRed.iconSize = new GSize(12, 20);
iconRed.shadowSize = new GSize(22, 20);
iconRed.iconAnchor = new GPoint(6, 20);
iconRed.infoWindowAnchor = new GPoint(5, 1);

var customIcons = [];
customIcons["city"] = iconBlue;

function load() {
  if (GBrowserIsCompatible()) {
    var map = new GMap2(document.getElementById("map"));
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
    map.setCenter(new GLatLng(47.614495, -122.341861), 1);
    map.setMapType(G_SATELLITE_MAP);

    GDownloadUrl("map-xml.php", function(data) {
      var xml = GXml.parse(data);
      var markers = xml.documentElement.getElementsByTagName("geolocation");
      for (var i = 0; i < markers.length; i++) {
        var time = markers[i].getAttribute("time");
        var date = markers[i].getAttribute("date");
        var city = markers[i].getAttribute("city");
        var type = markers[i].getAttribute("city");
        var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
                                parseFloat(markers[i].getAttribute("lng")));
        var marker = createMarker(point, time, date, city, type);
        map.addOverlay(marker);
      }
    });
  }
}

function createMarker(point, time, date, city, type) {
  var marker = new GMarker(point, customIcons[type]);
  var html = "<b>Time:" + time + "<br />Date:" + date + "<br/>City:" + city +"</b>";
  GEvent.addListener(marker, 'click', function() {
    marker.openInfoWindowHtml(html);
  });
  return marker;
}
//]]>

谢谢

Answer 1

我想你正在寻找一个标记管理器.