function getFeaturesForTimeLine($layer_tablename,$tlCol,$tlStartDate,$tlEndDate,$BBOX){
$BBOXES = GenerateBBoxes($BBOX,10);
$cnt = count($BBOXES);
$fids = array();
for ($i=0; $i<$cnt; $i++) {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s')) AND %s between '%s' and '%s'";
$query_args = array($layer_tablename, $BBOXES[$i], $layer_tablename, $tlCol, $tlStartDate, $tlEndDate);
$result_db = db_query($query, $query_args);
while ($data = db_fetch_object($result_db)) {
$fids[] = $data->{AUTO_DBCOL_PREFIX.'id'};
}
}
return implode(",", $fids);
}
function getMapPoints($table,$BBOX,$search_ids,$tl_col,$tlStartDate,$tlEndDate){
$BBOXES = GenerateBBoxes($BBOX,10);
$cnt = count($BBOXES);
$pointlist = array();
for ($i=0; $i<$cnt; $i++) {
if ($search_ids != '') {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id,astext(".AUTO_DBCOL_PREFIX."topology) as location FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s')) AND ".AUTO_DBCOL_PREFIX."id in(%s) ";
$query_args = array($table, $BBOXES[$i], $table, $search_ids);
} else {
if($tl_col != '') {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id,astext(".AUTO_DBCOL_PREFIX."topology) as location FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s')) AND %s between '%s' and '%s'";
$query_args = array($table, $BBOXES[$i], $table, $tlCol, $tlStartDate, $tlEndDate);
} else {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id,astext(".AUTO_DBCOL_PREFIX."topology) as location FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s'))";
$query_args = array($table, $BBOXES[$i], $table);
}
}
$result_db = db_query($query, $query_args);
$no =0;
$point ='';
$loc='';
while ($user_data = db_fetch_object($result_db))
{
$id= 'REAL|'.$user_data->{AUTO_DBCOL_PREFIX.'id'}.'_';
$str = $id;
$loc='';
$loc = $user_data->location;
$loc = str_replace('MULTIPOINT(','',$loc);
$loc = str_replace('POINT(','',$loc);
$loc = str_replace(' ', ',', $loc);
$loc = str_replace(')', ';', $loc);
$str .= $loc;
$point .= $str;
$no++;
}
if ($no < 5)
{
print_r($point);
}
else
{
$point ='';
$BBOX = $BBOXES[$i];
//Do one more iteration
$NewBBOXES = GenerateBBoxes($BBOX,2);
$counter = count($NewBBOXES);
$Newpointlist = array();
for ($j=0; $j<$counter; $j++) {
if($search_ids != '') {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id,astext(".AUTO_DBCOL_PREFIX."topology) as location FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s')) AND ".AUTO_DBCOL_PREFIX."id in(%s)";
$query_args = array($table, $NewBBOXES[$j], $table, $search_ids);
} else {
$query = "SELECT ".AUTO_DBCOL_PREFIX."id,astext(".AUTO_DBCOL_PREFIX."topology) as location FROM \"%s\" where ".AUTO_DBCOL_PREFIX."topology && setSRID('BOX3D(%s)'::box3d, (select srid from geometry_columns where f_table_name = '%s'))";
$query_args = array($table, $NewBBOXES[$j], $table);
}
$newresult_db = db_query($query, $query_args);
$newno =0;
$newpoint ='';
$newloc='';
while ($newuser_data = db_fetch_object($newresult_db))
{
$newid= 'REAL|'.$newuser_data->{AUTO_DBCOL_PREFIX.'id'}.'_';
$newstr = $newid;
$newloc='';
$newloc = $newuser_data->location;
$newloc = str_replace('MULTIPOINT(','',$newloc);
$newloc = str_replace('POINT(','',$newloc);
$newloc = str_replace(' ', ',', $newloc);
$newloc = str_replace(')', ';', $newloc);
$newstr .= $newloc;
$newpoint .= $newstr;
$Newpointlist[$newno] = $newloc;
$newno++;
}
if ($newno < 4)
{
print_r($newpoint);
}
else
{
$newpoint = '';
$newpoint.= "VIRTUAL|".$newno. "!". $NewBBOXES[$j];
$newpoint.= "_". GetMedianPoint($Newpointlist);
print_r($newpoint);
}
}
}
}
}