[GRASS-user] change centroids/area categories by step values

[Moritz Lennert]

On 10/08/08 01:15, G. Allegri wrote:
> It works... I'm sorry, it was a problem with my vector. It gave me
> errors because it wasn't correctly dissolved...
> Thanks anyway, for the hint.
> 
> I will open another post for the other question:
> why is the creation of new vectors in v.categories, v.dissolve, and
> similar commands needed? Couldn't it be an option, so one could
> overwrite the original vector? I imagine it shouldn't be difficult to
> realize it...
> 

Probably not (just need to create a temporary file which you copy over 
the original file at the end, but it represents a higher risk of losing 
data. So, IMHO, this is not a question of programming, but a more 
general question of program philosophy...

Moritz