[Mapserver-users] addPoint problems, again

[Ken-ichi]

Hi list.  I posted this a few days ago, but I haven't worked out the 
problem yet.  Please tell me if I'm doing something stupid.

I'm new to MapServer and phpMapScript and I've run into a roadblock with 
ShapefileObj's addPoint() function.  I add the point, add a record to 
the dbf (w/ almost no data), there are no errors, and the reported 
number of shapes in the file increases by one, but the new point isn't 
displayed.  I've perused the list archives and haven't found anything 
like this.  Can anyone give me any advice?  This may all stem from some 
deep ignorance of the true and potentially infernal nature of 
shapefiles.  I've included my version info and code below if it helps.  
This is all in Mac OS 10.3.

MapServer Version
MapServer version 4.0 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=PROJ 
SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER INPUT=TIFF INPUT=EPPL7 INPUT=JPEG 
INPUT=SHAPEFILE

 PHP MapScript Version
 ($Revision: 1.177 $ $Date: 2003/07/30 19:01:31 $)


        $my_point = ms_newpointObj();
     
    $my_point->setXY($HTTP_POST_VARS["mapa_x"],$HTTP_POST_VARS["mapa_y"]);

        //add the point
        $targetFile = ms_newShapefileObj( "/path/to/file", -2 );
        $temp = $targetFile->addPoint( $my_point );
        echo "<p>result: $temp\n";//test
        echo "<p>result: " . $targetFile->numshapes;//test
        echo "<p>result: " . $targetFile->type;//test
        echo "<p>result: " . $targetFile->source;//test

        $targetFile->free();
       
        //add the dbf record
        $dbf = dbase_open( "/path/to/file.dbf", 2 );
       
        $attr = array( "", "", "", "", "", "", "", "", "", "", "", "", 
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "newpt", "", 
"", "", "", "", "", "", "", "", "", "", "", "" );
       
        if( !dbase_add_record( $dbf, $attr ) ) echo "<h2>Add Record 
Failed!</h2>";
        dbase_pack( $dbf );

Thanks in advance.

-Ken-ichi