On Donnerstag 13 März 2008, Jukka Rahkonen wrote: > Hi, > > I found about 100 topology errors from polygons in Finland with the > following work flow: > > - OSM-data are in PostGIS > - I took polygons with topology errors directly into OpenJUMP map with db > query: select * from osm_polygon where not isvalid(way); > - I used OpenJUMP topology check tool which creates a new point layer > showing the exact places of the errors > - That layer I converted to gpx and loaded into JOSM. Then I downloaded OSM > data > > around error locations and made corrections. > > Usually this works rather well. But then I faced such a ring > self-intersection that I cannot correct it. It is about a lake that > intersects itself but also shares one node with a road. The place is here: > > http://www.openstreetmap.org/index.html?mlat=61.277669238738454&mlon=28.855 >010608222813&zoom=13 > > I was thinking that I should cut the lake polygon, draw a couple of new > nodes and connect the lake together again, but I just cannot split the lake > boundary. How should I do it?
I did split the street from the wood for you and seperated the two wood peaces. I hope this does help you in editing furter ... -- Jörg (Germany, Munich) http://www.ostertag.name/ irc://irc.oftc.net/#osm Tel.: +49 89 420950304 Skype: JoergOstertag _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
