function __construct(READER $rdr, LOGGROUP $grp = NULL, array $filters = NULL, MASK $mask = NULL, $resample = 0, $limit = 0)
{
parent::__construct($mask, $resample, $limit);
if ($filters) {
$this->AddReaderFilters($rdr, $grp, $filters);
}
}
function __construct(DATAFilter $sub_filter, READER $rdr, LOGGROUP $grp, array $filters = NULL, MASK $mask = NULL, $resample = 0, $limit = 0)
{
parent::__construct($mask, $resample, $limit);
$this->filter = $sub_filter;
}