[GRASS-user] Vector topology

[Hamish]

Jose Gomez-Dans wrote:
> I have a shapefile where I have digitised certain polygons twice (yes,
> my fault :D). The polygons are mostly the same, but the vertices might
> be slightly shifted, etc. I understand that I can clean these polygons
> using somesort of topology tests or something. I also undersstand that
> in GRASS, v.clean does this job (I think the name of the program
> states my intention better than anything: I want to clear a vector
> layer of spurious polygons). There are several types of cleaning
> available, but I don't know which one is the one to use.
> 
> Any hints?


v.clean tool=break + v.dissolve?  (maybe with v.centroids in between)

?

or maybe faster  v.clean tool=break,rmarea  ?


Hamish