[GRASS-user] removing gaps between areas

Markus Metz markus.metz.giswork at gmail.com
Sun Dec 1 23:38:35 PST 2013


On Mon, Dec 2, 2013 at 7:42 AM, Martin Landa <landa.martin at gmail.com> wrote:
> Hi,
>
> 2013/11/30 Martin Landa <landa.martin at gmail.com>:
>
>> after patching two vector maps I am getting small gaps between areas
>> (see the attached screenshot).
>>
>> I found 'rmsa' tool (remove small angles between lines at nodes) of
>> `v.clean` as suitable for this task. Unfortunately this tool ignores
>> threshold value [1], after a small modification of this tool I can
>> remove these gaps using `rmsa` tools. I just wonder if there is a more
>> safe or preferable way how to remove gaps.
>
> sorry for the noise - 'rmarea' is the solution, Martin

You might also try tool=snap with a very small threshold. Which tool
or combination of tools works best to remove gaps depends on the data,
some experimenting can be helpful.

Markus M


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