[GRASS-user] Removing small areas using v.clean

Pierre Roudier pierre.roudier at gmail.com
Tue Sep 20 18:51:35 EDT 2011


Sorry for this late reply as I was away from keyboard the last few days,

I encountered this problem while testing the latest grass_svn  (grass
7). I can give it a shot using a stable version if you want,


2011/9/17 Markus Metz <markus.metz.giswork at googlemail.com>:
> On Fri, Sep 16, 2011 at 6:28 AM, Pierre Roudier
> <pierre.roudier at gmail.com> wrote:
>> Dear list,
>> I got a problem as I'm trying to remove small areas of a vector layer
>> using v.clean with the rmarea tool: some of these small areas that are
>> on the boundary of the layer are getting erased rather than being
>> merged with the closest polygon.
>> Is that an expected behaviour?
> No, they should always be merged with a neighbouring area along the
> shared boundary. Areas are supposed to be erased only if they are
> isolated, i.e. do not share a boundary with another area. What GRASS
> version are you using? There was a bug which was fixed 2 years ago.
> Markus M

Landcare Research, New Zealand

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