[GRASS-user] Merging Boundaries and Centroids

[Micha Silver]

Hi Moritz:
Thanks for the corrections.
-- 
Micha

Moritz Lennert wrote:
>
>>>  
>> You can do this with v.patch, *provided* that both vectors have 
>> equivalent attribute table columns.
>
> If you can use the append flag (-a) you don't need to have matching 
> tables. Just v.patch -a input=LayerA output=LayerB.
>
>
> From the man page:
>
> columns=name
>     Column definition in SQL style (points mode)
>
> So, not possible for lines/areas. I guess this is due to the more 
> complicated file format for lines and areas which makes it difficult 
> to integrate attributes.
>
> Moritz
>