[GRASS-dev] more help with v.category...

[Markus Metz]

Isaac Ullah wrote:
> [...]
>
> So, how can I make all 159 individual areas have unique category 
> numbers?!?!?
I think you have to delete all categories first, because v.category will 
only add a category to a vector object if none is set (that information 
is missing in the manual AFAICT). Or you add categories to a new layer.

Markus M