Question

我将PHP mysql用于我的谷歌地图。将显示两个不同的标记（绿色表示ja（是），橙色表示nein（no））。但是当两个“东西”具有相同的纬度和长度时，只显示其中一个（例如：男人（ja）和女人（nein）住在同一个房子里）我怎样才能得到两个标记？我不希望两个在同一个infowindow和没有集群。首先是php：

    $query = "SELECT ...";
$result = mysql_query($query);
if (!$result) {
  die('Invalid query: ' . mysql_error());
}
header("Content-Type: text/xml; charset=utf-8");
header("Content-type: text/xml");

// Start XML file, echo parent node
echo '<markers>';

// Iterate through the rows, printing XML nodes for each
while ($row = @mysql_fetch_assoc($result)){
// ADD TO XML DOCUMENT NODE
parseToXML($row['kennelname'] .'</a>" ';
  echo '<marker ';

if ($row['studlist'] == 'ja')  
{echo 'studlist=" " ';} else {echo 'studlist="Daten nicht geprüft!" ';} 

  echo 'name="' . parseToXML($row['dogname']) . '" ';
  echo 'lat="' . $row['lat'] . '" ';
  echo 'lng="' . $row['lng'] . '" ';
  echo 'type="' . $row['studlist'] . '" ';
  echo ' />';

}

// End XML file
echo '</markers>';

和js：

    <script src="http://maps.google.com/maps/api/js?sensor=false"
            type="text/javascript"></script>
<script type="text/javascript">
    //<![CDATA[

var customIcons = {
  ja: {
    icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',
    shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
  },
  nein: {
    icon: 'http://labs.google.com/ridefinder/images/mm_20_orange.png',
    shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
  }
};

    function load() {
      var map = new google.maps.Map(document.getElementById("map"), {
        center: new google.maps.LatLng(51.162014, 10.450573),
        zoom: 6,
        mapTypeId: 'roadmap'
      });
      var infoWindow = new google.maps.InfoWindow;

      // Change this depending on the name of your PHP file
      downloadUrl("testfemale_de_xml.php", function(data) {
        var xml = data.responseXML;
        var markers = xml.documentElement.getElementsByTagName("marker");
        for (var i = 0; i < markers.length; i++) {
            var id = markers[i].getAttribute("id");
          var name = markers[i].getAttribute("name");

          var address = markers[i].getAttribute("address");
          var studlist = markers[i].getAttribute("studlist");
          var type = markers[i].getAttribute("type");
          var point = new google.maps.LatLng(
              parseFloat(markers[i].getAttribute("lat")),
              parseFloat(markers[i].getAttribute("lng")));


          var html = 
          "<a href='/dog.php?id=" + id + "'>" +  name + "</a>" +
          "<br/><img  src='/photo/" + id + "/" + id + ".jpg' height='70' width='' alt=''>" + 

          "<br />" +studlist

           ;
          var icon = customIcons[type] || {};
          var marker = new google.maps.Marker({
            map: map,
            position: point,
            icon: icon.icon,
            shadow: icon.shadow
          });
          bindInfoWindow(marker, map, infoWindow, html);
        }
      });
    }

    function bindInfoWindow(marker, map, infoWindow, html) {
      google.maps.event.addListener(marker, 'click', function() {
        infoWindow.setContent(html);
        infoWindow.open(map, marker);
      });
    }

    function downloadUrl(url, callback) {
      var request = window.ActiveXObject ?
          new ActiveXObject('Microsoft.XMLHTTP') :
          new XMLHttpRequest;

      request.onreadystatechange = function() {
        if (request.readyState == 4) {
          request.onreadystatechange = doNothing;
          callback(request, request.status);
        }
      };

      request.open('GET', url, true);
      request.send(null);
    }

    function doNothing() {}

    //]]>
  </script>

Answer 1

当标记共享同一位置时，您将只看到一个。您可以使用标记的zIndex属性选择要显示的属性。例如：

marker.setZIndex(google.maps.Marker.MAX_ZINDEX + 1);

谷歌地图V3同样来自mysql查询的lat lng

1 个答案: