[Mapserver-users] Querybypoint succes GetNumResult 1 shapeindex -1 Why?

[Eric Bridger]

Jose,

The line below is incorrect, is not necessary and is probably
causing your problem.  Try commenting it out.
You only need to re-open the shapefile if you want to retrieve the
shape. But you don't have a shape file, you have a dynamically created 
feature layer. FYI the correct call if you had a shape file would have
been:
$layerObj->open($layerObj->{data});

>          $layerObj->open($results);


On Thu, 2003-06-12 at 23:21, jose.quintal at cfe.gob.mx wrote:
> Of a data base of Mysql I take hold points with its coordinates x and y
> them drawing and all OK, But when doing a Querybypoint shapeindex returns
> to me -1 That I have bad?
> 
> Here I keep the points in a ShapeObj object
> 
> //Conectando con Mysql
> mysql_pconnect("dwa00","sist","sist") or die("No abrio el servidor");
> mysql_select_db("mapas") or die("No selecciono la Base de Datos");
> 
> //Seleccionando Postes
> $sql="SELECT * from postes_Mer WHERE identificador = '$buscar' ";
> $p=mysql_query($sql) or die("Error al Ejecutar la Consulta");
> 
> //Arma la consulta
> 
> //  get a layer object representing your pointlayer
> 
> $layerObj = $map->getLayerByName("postes");
> 
> // get a class object representing the first class in the layer
> $classObj = $layerObj->getClass(0);
> 
> // create a new point object to hold the X Y data
>  $pointObj = ms_newPointObj();
>  $line = ms_newLineObj();
> 
> $i=0;
> while($reg=mysql_fetch_array($p))
> {
>      $a=$reg['num_campo'];
>      $b=$reg['cor_x'];
>      $c=$reg['cor_y'];
> 
> 
>      $pointObj->setXY($b,$c);
>      $line = ms_newLineObj();
>      $line ->add($pointObj);
>        $shp = ms_newShapeObj(MS_SHAPE_POINT);
> 
>       $shp->add($line);
>       $shp->{text} = $a;
>       $shp->{index} = $i;
>       if($layerObj->addFeature($shp) == -1){
>              echo  "addFeature failed";
>          }
>       $point_lookup[$i] = $a;
>       $i++;
>    $pointObj->draw($map, $layerObj, $image, 0, $a);
> 
>  }
> 
> Here this the code where I make the Querybypoint
> 
> 
>   if ($info_pt == 1 )
>   {
>     $record = -1;
> 
>    $layerObj = $map->getLayerByName('postes');
>    $queryresult = @$map->queryByPoint ($ptClicked,MS_SINGLE,1000);
>    echo "Queryresult " . $queryresult;
>    if ($queryresult == SUCCES)
> 
>      {
> 
>        $results = $layerObj->resultcache;
# remove the line below:
>          $layerObj->open($results);
>        $num_results = $layerObj->getNumResults();
>          echo "Num resultados  :" . $num_results;
>   //   we only expect one result.
> 
>          $rslt[0] = $layerObj->getResult(0);
>    //    this is an index into the point lookup table.
>          $shapeindex[0]=$rslt[0]->shapeindex;
>         $tileindex[0]=$rslt[0]->tileindex;
>         echo "rsultado : " . $rslt[0];
>         echo "tile : " . $tileindex[0];
>         echo "shape :" .  $shapeindex[0];
> 
> 
>     }
>   }
> 
> 
> 
> Here this the definition of the Layer in the .map where I make the
> Querybypoint
> 
> LAYER
>   NAME "postes"
>   TYPE POINT
>   STATUS ON
>   TOLERANCE 10
>   LABELMINSCALE 10
>   LABELMAXSCALE 60000
>   TEMPLATE "postes.html"
>   CLASS
> 
>     SYMBOL 'circle'
>     COLOR 0 0 0
>     SIZE 5
>     MINSIZE 5
>     MAXSIZE 5
>     LABEL
>      ANTIALIAS TRUE
>      TYPE TRUETYPE
>      FONT Arialn
>      SIZE 8
>      POSITION CL
>      BUFFER 2
>      MINDISTANCE -3
>      MINFEATURESIZE -1
>      COLOR 252 152 54
>      PARTIALS TRUE
>      FORCE FALSE
>     END
> 
>   END
>  END
> 
> 
> 
> 
> Thanks
> 
> 
> 
> 
> José Antonio Quintal Castillo
> Sistemas
> Comision Federal de Electricidad
> 
> Tel 9243128  O  9243136
> 
> 
> 
> 
> 
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