[R-sig-Geo] thinlines equivalent?

Julien Barnier jbarnier at ens-lsh.fr
Tue Jul 1 16:00:59 CEST 2008


Hi David,

> I have a big dataset of points and am doing stuff on them that takes a
> lot of time. To speed it up, I would like to use "thinlines" from
> RArcinfo, which basically makes the maps "rougher" by throwing away
> points. Is there an equivalent function for SpatialPolygon type
> objects? (I assume that there's no way to convert _to_ Arcinfo, though
> I know it's possible to read from it).

Maybe you already know it, but I just discovered a free online tool
called MapShaper which allows to simplify shapefiles
«interactively». I don't know if it can be useful for your data :

http://mapshaper.org

HTH,

Julien

-- 
Julien Barnier
Groupe de recherche sur la socialisation
ENS-LSH - Lyon, France




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