/**
* Add $within criteria with a $box shape to the query.
*
* @deprecated 1.1 MongoDB 2.4 deprecated $within in favor of $geoWithin
* @see Builder::geoWithinBox()
* @see Expr::withinBox()
* @see http://docs.mongodb.org/manual/reference/operator/box/
* @param float $x1
* @param float $y1
* @param float $x2
* @param float $y2
* @return self
*/
public function withinBox($x1, $y1, $x2, $y2)
{
$this->expr->withinBox($x1, $y1, $x2, $y2);
return $this;
}