Hi! I just posted a new Maproulette challenge for fixing one particular case of broken polygons: Building ways with "spikes". Details are at http://area.jochentopf.com/fixing.html#spikes-buildings .
Because there is a large number of those in HOT areas, I have split those off into their own challenge (http://maproulette.org/ui/admin/list/379/Challenge/tasks/2499). Would be great to get some help fixing those from the HOT community. Jochen On Wed, Mar 15, 2017 at 04:06:05PM +0100, Jochen Topf wrote: > Date: Wed, 15 Mar 2017 16:06:05 +0100 > From: Jochen Topf <[email protected]> > To: [email protected] > Subject: [HOT] Broken (multi)polygon cleanup > > Hi! > > There are many broken (multi)polygon geometries in OSM data leading to > all sorts of problems. I have started an effort to get this cleaned up. > You can read more about this at http://area.jochentopf.com/ . > > This effort has been running for about a month now and we can already see > some good results. See > https://github.com/osmlab/fixing-polygons-in-osm/issues/15 > for some news about what's been happening. > > I am writing to the HOT list today, because a not-so-small part of the > problems come from HOT mappers. For instance, looking at one particular > problem here (spikes in closed ways), I am seeing about 5800 errors, of > which about 1600 are in areas covered by the HOT tasking manager. (Of > couse not all of these have been done in the course of HOT mapping, but > probably most of them.) > > I am reaching out to some of the regional OSM communities and also to > HOT, because I want to a) ask for the help of all the communities in OSM > to fix those errors and b) generally raise awareness, so those problems > can be minimized in the future. > > Please go to the web sites linked above and read up on what the problems > are and how we are fixing them. I also want to offer my help in > preparing special data extracts or Maproulette challenges etc. to help > the HOT community participate in the cleaning up effort in a way that > makes sense to you. I could, for instance, put those 1600 errors > mentioned above in a special Maproulette challenge, if that would be a > good way for HOT mappers to work on them. > > Tell me what you think. I appreciate any feedback. > > Jochen > -- > Jochen Topf [email protected] https://www.jochentopf.com/ +49-351-31778688 > > _______________________________________________ > HOT mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/hot -- Jochen Topf [email protected] https://www.jochentopf.com/ +49-351-31778688 _______________________________________________ HOT mailing list [email protected] https://lists.openstreetmap.org/listinfo/hot
