has
Composes a function that identifies, point-wise, where this function's field result has data across its extent. The result values are true where this function's field result has data and false where it has no data. All values in the result will have data.
The function result extent equals that of this function's field result.
Return
A function that identifies, point-wise, where this function's field result has data.
Since
300.0.0