On Tue, 30 Jun 2009, William Lachance wrote: > > 1. Intersection at spruce grove of two highways with dual carraigeways: > > http://www.openstreetmap.org/?lat=53.5578961&lon=-113.9100716&zoom=14&layers=B000FTF > > 8 duplicated nodes here.
Are you seeing 8 duplicate nodes on the live OSM map? If so what are the node id's. When I'm not sure which intersection your refering to. For example http://www.openstreetmap.org/browse/way/31681540 is sharing nodes with some of the connecting ways. (note that some of the ways in this area are non geobase ways that don't yet connect to the geobase ones) > I've uploaded a full list of duplicated nodes for the Edmonton area, > if anyone wants to see more evidence. :) It's just a raw list of > lat/lng coordinates, prefixed with the number of duplicated nodes that > geobase2osm is generating at that position. Check it out at: > > http://wlach.masalalabs.ca/edmonton-dupe-nodes For example the last one on the list 8 53.5578961, -113.9100716 When I search my version 5 Alberta NRN file I see 3 Geobase ways that have a node at that location ba63f7ea50484da990858e0af964d867 f6b43dd752e24cceb7eeebad5059888f 0e3f0a6ddc2b4a6e8d5d754639570516 When I generate a clean .osm file with geobase2osm for the 083GH tiles each of these ways shares a common node. What is the exact bounds file your using in your test, perhaps there is a bug that only shows up with certain inclusions/exclusions? Keep in mind that the .complete and file uploaded from the original import was done with the version of geobase2osm that had the merging bugs (but the data uploaded in OSM has since been fixed(as far as I know )) In Alberta fa0eaa9c6edd4f08aef6cc27e9f91ba4 and cf5c268bc5d4464cb485fc6d2aa71324 with node (53.5411265,-113.3799206) is an example of a place where two streets have a node at the same location but are not intersections according to the geobase data. I think this an overpass so the where you can't really route from one to the other. b777800e3e4747dfbf2a417259e3c176 at (53.5805167,-113.4528248) with 6e24a4f112894569a18387fbc0777b3f is another. The ramp for the highway must be going over the highway not joining it at the common node. > > Do we have consensus that it would be better to use my approach? If > so, how do we go about updating the "official" script? I think we need to use the junction data include with geobase to decide when to join nodes. It that the code isn't working right then we should fix it, but I don't think we want to join all nodes that share the same point in space. Steve > -- > William Lachance > [email protected] > _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
