[Mapserver-users] problem QueryByPoint

[Norbert Thieme]

passera schrieb:
> Hello,
> I'm a student french and my english is very bad.
> My problem are the function QueryByPoint and QueryByRect.
> I do not manage to recover information in the .dbf .
> 
> 
> My mapfile is:
> 
> LAYER
>       NAME immeuble
>       TYPE polygon
>       STATUS ON
>       DATA IMMEUBLE41
>       CLASSITEM "SDAP_X"
> *      * CLASS
>             COLOR 0 0 0
>             OUTLINECOLOR 0 0 0
>             NAME "Immeuble"
>             SYMBOL 0
>             TEMPLATE "query.html"
>        END
> END
> 
> 
> My .php is:
> 
> $layer = $map->getlayerbyname("immeuble");
> $point = 
> pixeltogeo($map,$HTTP_POST_VARS["mapa_x"],$HTTP_POST_VARS["mapa_y"]);
> $queryfound = $map->querybypoint($point,MS_SINGLE,-1);
> if ($queryfound == MS_SUCESS){
>       $count_results = $layer->getnumresults();
>       print($count_results);
> }
> if ($queryfound == MS_FAILURE){
>       print("failure");
> }
> 
> // $queryfound is every time equal MS_FAILURE
> 
> 
> Please help
> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> 
> 

Hi,

Try something like this:

if (@$layer->queryByPoint($q_point, $q_mode, 0) == MS_SUCCESS) // you 
can leave the @ to see the messages
{
   $res_count = $layer->getnumresults();
   for ($i = 0; $i < $res_count; $i++)
   {
     $result = $layer->getResult($i);
     $layer->open();
     $items = $layer->getitems(); // get the names of the fields - you 
only need this once per layer
     $data_shp = $layer->getshape($result->tileindex, 
$result->shapeindex); // get the shapeobj - each result has a shape-, 
tile- and classindex
     $layer->close();
     $data_val = $data_shp->values; // get the values from the shapeobj
   }
}

Regards,
Norbert