Re: [OSM-talk] Admin boundaries and streets
--- On Tue, 11/8/09, Joseph Scanlan wrote: > Finally the question. Am I making a mistake? There is a lot of boundary data imported for Australia and some of it is very very useful when no suitable sat imagery is, so these boundaries, which are usually natural features like rivers, and man made features that usually don't move like roads and rail are good enough most of the time and they get tagged as waterway or highway or railway etc. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Admin boundaries and streets
> The admin boundary has (IMHO) extra nodes (they don't connect to another > way nor do they affect the shape of the boundary). To make things > worse, I've joined some of these nodes to streets as I worked on the > streets and land use in the area. > > So... now that I have to fix things, I want to improve the map while I > go. I want to remove the boundary ways that "echo" Bermuda and add that > piece of Bermuda to the Enterprise and Paradise relations. The > relations already have boundary and admin_level tags. These are good questions - while I don't have an answer, I'll make the observation that admin boundaries falling on streets makes correcting Tiger data difficult. There are several areas that derive from the same data, and the admin boundary falls exactly on a way of a road - including all nodes. I'm not sure if Potlatch's handy '/' shortcut can select the bottom way or the bottom node, but this is often necessary to 'grab the way' to correct or select it. I couldn't find any easy way to select or grab the bottom way in JOSM other than to select the bottom node and drag. My take is that I don't know where the admin boundary actually is, so I'm careful not to disturb any boundary data. On the other hand, when the boundary colors match the Yahoo aerials, I may have accidentally drawn a way that connects to an admin boundary (node placement logically selects ways in close proximity). ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
[OSM-talk] Admin boundaries and streets
G'day, Today I have a question about administrative boundaries, multipolygons, and what to do when they fall along a road. But first, I'll ramble a little and describe what I already have. There's a way (boundary=administrative; member of Enterprise and Paradise multipolygons) that runs *very* close to another way (highway=tertiary, name=Bermuda Road). I haven't looked up any legal definitions and can't say for sure that the admin boundary lies on the street center line, the middle of the right of way, etc. but as a practical matter Bermuda separates Enterprise from Paradise. (I'm not making these names up, I live near [1]). The admin boundary has (IMHO) extra nodes (they don't connect to another way nor do they affect the shape of the boundary). To make things worse, I've joined some of these nodes to streets as I worked on the streets and land use in the area. So... now that I have to fix things, I want to improve the map while I go. I want to remove the boundary ways that "echo" Bermuda and add that piece of Bermuda to the Enterprise and Paradise relations. The relations already have boundary and admin_level tags. Finally the question. Am I making a mistake? After all, I could keep the boundary and Bermuda separate (correcting my errors and line up the nodes that make it up). [1] http://www.openstreetmap.org/?lat=36.05051&lon=-115.16386&zoom=15&layers=B000FTF -- - Joseph Scanlan +1-702-455-3679 http://www.n7xsd.us/ j...@co.clark.nv.us (work) (not work) n7...@arrl.net - So he went inside there to take on what he found. But he never escaped them, for who can escape what he desires? --Tony Banks of Genesis in "The Lady Lies" ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
