[mapserver-users] Mapscript Rasterquery returns empty result

Tom van der Putte tom at vdputte.nl
Wed Apr 28 10:48:41 EDT 2010


Hi,
 I have the following code:
	$oMap->prepareQuery();
 $oPoint =  ms_newPointObj();
 $oPoint->setXY($x,$y);   //coords received from a AJAX call
 $oLayer =  $oMap->GetLayerByName($szLayer); //Name received from a
AJAX call
 $status =  $oLayer->queryByPoint($oPoint, MS_MULTIPLE, 1);
 $status =  $oLayer->open();
 $result =  $oLayer->getResult(0);
 $numResults =  $oLayer->getNumResults();
 $shape =  $oLayer->getShape($result->shapeindex,$result->tileindex);
 echo(var2json($shape));

	This results in the follwing json code to be returned:

	{"_handle_":Resource id #45,"numlines":1,"type":0,"index":-1,
 "tileindex":-1,"classindex":0,"numvalues":8,"text":"",
 "bounds":{"_handle_":Resource id #46,"minx":607000,
 "miny":677000,"maxx":607000,"maxy":677000},
 "values":[null,null,null,null,null,null,null,null]}

	No matter what I try, it keeps returning empty shapes. How can this
be?

	P.S. I'm using mapserver 5.2.1 from the ms4w package.
	Cheers,

	Tom
  
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