Thanks, Andrew! in my newest batch of Maproulette challenges, I have included a special challenge for Korea, because there were so many problems there.
I encourage everbody to help: http://area.jochentopf.com/fixing.html#duplicate-segments-in-closed-ways Jochen On Sun, Mar 19, 2017 at 10:02:57PM +0900, Andrew Errington wrote: > Date: Sun, 19 Mar 2017 22:02:57 +0900 > From: Andrew Errington <erringt...@gmail.com> > To: OpenStreetMap Korea <talk-ko@openstreetmap.org> > Subject: Re: [Talk-ko] Broken (multi)polygons in Korea > > Ok. I contacted who I thought was the most prolific mapper of forest > outlines. They said they did it as quickly as possible because it was > important for Koreans to see forested areas on the map. Now they are > reviewing and improving those polygons. > > Best wishes, > > Andrew > > On Mar 15, 2017 5:24 PM, "Andrew Errington" <erringt...@gmail.com> wrote: > > As far as I know there has been no import of forest area data. There is a > prolific mapper who has made rough outlines of forested areas. Some of > these areas overlap with others. Some areas intersect with themselves. I > don't think each area represents anything "on the ground", just a > convenient chunk to draw a line around. > > I will contact that mapper and ask about his or her methodology. There are > other "large area mappers" too. > > Best wishes, > > Andrew > > On Mar 15, 2017 4:58 PM, "Jochen Topf" <joc...@remote.org> wrote: > > Hi! > > there are quite a lot of broken (multi)polygons in the OSM data. I have > started an effort to clean them up. You can find out more at > http://area.jochentopf.com > > I found that there are many problems with self-intersections in South > Korea, often on forests. You can see this here: > http://tools.geofabrik.de/osmi/?view=areas&lon=128.02487&lat=36.21680&zoom=8 > > Was there some kind of import? Can you, the Korean community, help with > fixing them? How good is that forest data anyway? Is it worth cleaning > up? I'd appreciate any information and help. > > If you are interested, I can also create special Maproulette challenges > or create special data extracts or so to help the Korean community clean > this up? > > Jochen > -- > Jochen Topf joc...@remote.org https://www.jochentopf.com/ > +49-351-31778688 > > _______________________________________________ > Talk-ko mailing list > Talk-ko@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-ko > _______________________________________________ > Talk-ko mailing list > Talk-ko@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-ko -- Jochen Topf joc...@remote.org https://www.jochentopf.com/ +49-351-31778688 _______________________________________________ Talk-ko mailing list Talk-ko@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ko
