[mapguide-users] Feature Set Empty

Mon Mar 22 02:15:40 EDT 2010

Hi,
iam trying to do zoom+selection features on map.while applying query i got
feature set is empty

i think i have applied the query correctly.plz tell me the solution....

<?php
       try
{
   include 'utilityfunctions.php';
$webExtensionsDirectory = 'C:\Program Files\OSGeo\MapGuide\Web\\';
$MapGuideServerDirectory = 'C:\Program Files\OSGeo\MapGuide\Server\\';
$viewerFilesDirectory = $webExtensionsDirectory . 'www\viewerfiles\\';
$schemaDirectory = $MapGuideServerDirectory . 'Schema\\';
$webconfigDirectory = $webExtensionsDirectory . 'www\\';
$webconfigFilePath = $webconfigDirectory . 'webconfig.ini';
 $args =  ($_SERVER['REQUEST_METHOD'] == "POST") ? $_POST : $_GET;
      $sessionId = $args['SESSION'];
echo $sessionId;
MgInitializeWebTier($webconfigFilePath);
 $siteConnection = new MgSiteConnection();
 $userinfo = new MgUserInformation($sessionId);
   $siteConnection->Open($userinfo);

$resourceService =
$siteConnection->CreateService(MgServiceType::ResourceService);
$featureService =
$siteConnection->CreateService(MgServiceType::FeatureService);
      $map = new MgMap($siteConnection);
      $map->Open('map');
      $layers = $map->GetLayers();
      $count = $layers->GetCount();
      for ($i = 0; $i < $count; $i++)
      {
        $layer = $layers->GetItem($i);
      }
                $layerClassName1 = $layer->GetFeatureClassName();
                $FeatureResId = new
MgResourceIdentifier("Library://data/resource.FeatureSource");
                $queryOptions = new MgFeatureQueryOptions();
                $val="PARCEL";
                $val1="17330100001001";
                $query=$val . "=" . $val1;
                $queryOptions->SetFilter($query);
                $layer=$map->GetLayers()->GetItem('property');
               $featureReader = $layer->SelectFeatures($queryOptions);
                $featureAgfGeometry =
$featureReader->GetGeometry('Geometry');
                $agfReaderWriter = new MgAgfReaderWriter();
                $featureGeometry =
$agfReaderWriter->Read($featureAgfGeometry);
                $centroid = $featureGeometry->GetCentroid();
                $mapCenterX = $centroid->GetCoordinate()->GetX();
                $mapCenterY = $centroid->GetCoordinate()->GetY();
                $selection = new MgSelection($map);
                $selection->AddFeatures($layer, $featureReader,1);
                $selectionXml = $selection->ToXml();
        }
        catch (MgException $e)
        {
                echo "<p><strong>Error:</strong> ";
                echo $e->GetDetails();
                echo "</p>";
        }
?>

<html>
<head>
 <title>Zoom Feature</title>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
    <meta http-equiv="content-script-type" content="text/javascript">
    <meta http-equiv="content-style-type" content="text/css">
    <link href="../styles/globalStyles.css" rel="stylesheet" 
type="text/css">
    <link href="../styles/otherStyles.css" rel="stylesheet" type="text/css">
    <script language="javascript">
                        function Zoom1(x,y) {
                            var xval=x;
                            var yval=y;
                            selectionXml = '<?php echo $selectionXml;?>';

                            parent.parent.mapFrame.ZoomToView(xval, yval,
1000, true);

parent.parent.mapFrame.SetSelectionXML(selectionXml);

                        }

    </script>
</head>
<body>
        <input type="text" name="id" size="15">
        <input type="button" name="button" value="Click" size="10"
onclick="Zoom1(<?php echo $mapCenterX;?>,<?php echo $mapCenterY;?>)">

</body>
</html>

regards,
Padmini G.
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