Glynn Clements wrote:
Otto Dassau wrote:
> I solved my problem partly using
>
> r.null map=crosstest setnull=0
>
> but I do not understand why this works. The problem areas were already
> NULL <no data> in both initial maps, so why not in the result map after
> using r.cross?r.cross hasn't been updated to understand null values yet.
The actual data is read using G_get_map_row(), which automatically
converts nulls to zeroes. However, the category information will refer
to null rather than zero (or maybe both null and zero).
Dear Glynn,
thanks for the hint, but I am not a programmer and not able update this
by myself. Would it be possible to fix r.cross easily? It would help a
lot!
thanks
Otto Dassau