[GRASSLIST:9439] Re: how can I remove sliver polygons from GRASS-Vector theme

[Martin Wegmann]

hello Wolfgang, 

I think you are looking for v.clean functionality. 

v.clean: Toolset to clean vector topology
....
rmarea: remove small areas, the longest boundary with adjacent area is removed 
rmsa: remove small angles between lines at nodes 
thresh=float[,float,...] 
Threshold 
Threshold in map units, one value for each tool (default: 0.0[,0.0,...])

regards, Martin


On Tuesday 13 December 2005 10:28, Wolfgang Qual wrote:
> Hi List,
> is there a possibility to remove sliver polygons in GRASS GIS (for example:
> remove all polygons that are less than 1 square meters of size?
>
> Best regards,
>
> Wolfgang

-- 
Martin Wegmann

DLR - German Aerospace Center
German Remote Sensing Data Center
@
Dept.of Geography
Remote Sensing and Biodiversity Unit
&&
Dept. of Animal Ecology and Tropical Biology
University of Wuerzburg
Am Hubland
97074 Würzburg

phone: +49-(0)931 - 888 4797
mobile: +49-(0)175 2091725
fax:   +49-(0)931 - 888 4961
http://www.biota-africa.org
http://www.biogis.de