protected function createNewLayer($map, $driver, $layerName, $geoType, $bSearchSpatialRef)
{
// if layer contains point objects
if ($geoType == wkbPoint) {
// before creating layer "entities" we create layer "blocks"
$layerBlocks = OGR_DS_CreateLayer($driver, 'blocks', NULL, wkbMultiLineString, NULL);
// in this layer we export representaion of all point objects (it's a square)
$wktLine = 'MULTILINESTRING((-0.5 -0.5, 0.5 -0.5, 0.5 0.5, -0.5 0.5, -0.5 -0.5))';
$geoOGR = ogr_g_createfromwkt($wktLine, NULL, NULL);
$dfnLayerBlocks = OGR_L_GetLayerDefn($layerBlocks);
$dataLine = OGR_F_Create($dfnLayerBlocks);
OGR_F_SetGeometry($dataLine, $geoOGR);
for ($i = 0; $i < OGR_FD_GetFieldCount($dfnLayerBlocks); $i++) {
$fieldDfn = OGR_FD_GetFieldDefn($dfnLayerBlocks, $i);
if (OGR_Fld_GetNameRef($fieldDfn) == 'BlockName') {
OGR_F_SetFieldString($dataLine, $i, 'SQUARE');
}
}
OGR_L_CreateFeature($layerBlocks, $dataLine);
OGR_F_Destroy($dataLine);
OGR_G_DestroyGeometry($geoOGR);
}
return parent::createNewLayer($map, $driver, 'entities', $geoType, false);
}
