[GRASS-user] v.patch -a

[Hamish]

Hamish wrote:
> I am trying to understand 'v.patch -a'.
> 
> if I try:
>   v.patch -a in="map1,map2" out="map1" --overwrite
> 
> I get an error:
>   ERROR: Output vector map <map1> is used as input
> 
> The flag description indicates that is ok if --o is used:
> Flags:
>   -a   Append files to existing file (overwriting existing files must
> be activated)
> 
> ??


I got it. The correct syntax for the above would be:

  v.patch -a in="map2" out="map1" --overwrite


I'll add an example to the help page.


Hamish




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