[ZS2] [mapguide-users] What happens if the BBOX does not exist?

[Kenneth Skovhede, GEOGRAF A/S]

You should provide more surrounding code, or say where the code is from.
In the code below, the envelope is never used, so it doesn't matter if 
it is there.
I assume it was supposed to be combined with the attribute filter like this:
if ($queryEnvelope != null)
$queryOptions->SetSpatialFilter($queryEnvelope)

Regards, Kenneth Skovhede, GEOGRAF A/S



¾Ï±ó skrev:
> Why the 'BBOX' does not exist?If this happens,can I get the 'geometry'?
> the codes is as following:
> if (array_key_exists('BBOX', $_GET))
> {
> // split the client's BBOX return by commas and spaces to obtain an 
> array of coordinates
> $coords = preg_split('/,|\s/', $_GET['BBOX']);
> $lowerLeft = $geometryFactory->CreateCoordinateXY($coords[0], $coords[1]);
> $upperRight = $geometryFactory->CreateCoordinateXY($coords[2], 
> $coords[3]);
>
> $queryEnvelope = new MgEnvelope($lowerLeft, $upperRight);
> }
>
> $featureService = 
> $siteConnection->CreateService(MgServiceType::FeatureService);
> $queryOptions = new MgFeatureQueryOptions();
>
> $filter = urldecode($_GET["FILTER"]) ;
> //echo "<p>$filter</p>";
> echo '<Folder>';
> echo '<description>MapGuide - Wheaton Parcels Filtered ['.$filter.'] 
> </description>';
> echo '<name>Wheaton Parcels</name>';
> echo '<visibility>0</visibility>';
> echo '<open>1</open>';
>
> $queryOptions->SetFilter($filter);
> //Feature Source being used in the application
> $featureReader = $featureService->SelectFeatures(new 
> MgResourceIdentifier("Library://test/Data/province.FeatureSource"), 
> "province", $queryOptions);
> //if($featureReader!=null) echo "<p>feature success!</p>";
> $geometryReaderWriter = new MgAgfReaderWriter();
> echo '<p>test1</p>';
> //Read Feature Source Attributes for populating Tooltip on Google Earth
> //Change this if using a different Feature Source
> $byteReader = $featureReader->GetGeometry('Geometry');
> //if($byteReader) echo '<p>feature success!</p>';
> $geometry = $geometryReaderWriter->Read($byteReader);
>
>
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>
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