[mapserver-users] PHP queryByRect problem.

Pedro A. Carrasco pcarrasco at iver.es
Tue Jul 2 07:11:05 PDT 2002


     Hi all,
     I'm having a problem with the queryByRect function y PHP/Mapscript. My
 code works fine with the queryByPoint, but if I try to use the queryByRect
 it doesn't return any record. Here is a snippet of my code to do the
search:

 ---------------------------------------------------------------------
     dl('php_mapscript.so');
     $map = ms_newMapObj(_DATAPATH._GENMAPFILE);

     //This function change the status to 1 on the layers


ActivaCapas('Servicios+Comercios+Construccion+Industria+Agrupaciones+Resto+P
 oblac',$map);

     $imgbox = str_replace(' ','+',$imgbox);
     $arrimgbox = explode('+',$imgbox);
     echo $imgbox.'<br>';

     $ext = str_replace(' ','+',$ext);
     $arrext = explode('+',$ext);
     echo $ext.'<br>';

     //Pix2Geo fron Gmap
     $minx = Pix2Geo($arrimgbox[0],0,$imWidth,$arrext[0],$arrext[2],0);
     $miny = Pix2Geo($arrimgbox[1],0,$imHeight,$arrext[1],$arrext[3],1);
     $maxx = Pix2Geo($arrimgbox[2],0,$imWidth,$arrext[0],$arrext[2],0);
     $maxy = Pix2Geo($arrimgbox[3],0,$imHeight,$arrext[1],$arrext[3],1);

     $rect = ms_newrectobj();
     $rect->set('minx',$minx);
     $rect->set('miny',$miny);
     $rect->set('maxx',$maxx);
     $rect->set('maxy',$maxy);

     //This query don't return any result
     @$map->queryByRect($rect);

     $resultado = array();
     for($i = 0;$i < $map->numlayers; $i++)
     {
       $lyObj = $map->getLayer($i);

       if($lyObj->status == 1)
       {
         $numResults = $lyObj->getNumResults();
         echo $lyObj->name.'-->'.$lyObj->status.'-->'.$numResults.'<br>';
         if($numResults == 0)
             continue;

         $lyObj->open($map->shapepath);

         //Nombre de los campos de los que se sacan los datos
         $selTables = $lyObj->getMetaData("DESCRIPTION");
         $selTitulo = $lyObj->getMetaData("TITLE");
         $selFields = explode(" ", $lyObj->getMetaData("RESULT_FIELDS"));

         $res = '';
         for($j = 0;$j < $numResults;$j++)
         {
           $oRes = $lyObj->getResult($j);
           $oShape = $lyObj->getShape($oRes->tileindex,$oRes->shapeindex);

           //Concatenamos los resultados
           $res = $res.'|'.$oShape->values[$selFields[0]];
         }

         $lyObj->close();
         $key = $selTables.'|'.$selTitulo;
         echo $key.'-->';
         echo $res.'<br>';
         $resultado[$key] = $res;
       }
     }
     return $resultado;
 ---------------------------------------------------------------------

 Is there any problem with the code or is the PHP/Mapscript version?, I use
 the following Mapscript and Mapserver versions:

 MapScript Version ($Revision: 1.104 $ $Date: 2002/04/24 20:37:32 $)
 MapServer version 3.6.0 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=TTF
 INPUT=TIFF INPUT=EPPL7 INPUT=JPEG INPUT=SHAPEFILE

 and PHP 4.2.1 in a Debian Linux.

 Thanks in advance.
 Regards.

 ---------------------------------------------------------------------
 Pedro A. Carrasco Ponce
 IVER Sistemas de Información Geográfica
 Dpto. Técnico
 C/Salamanca, 50
 46005 Valencia
 Telf: +34 96 316 34 00
 Fax: +34 96 316 2716
 mail : pcarrasco at iver.es
 web : http://www.iver.es
 ---------------------------------------------------------------------





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