On 11/8/15 5:00 AM, Dave Swarthout wrote: > Sorry to keep working this side topic but I want to add this > information FYI. I just came across this interesting article that > talks about the difficulty of editing relations in JOSM. Even though > we're talking about routes in this thread I think it's still relevant > to our recent discussions: > > http://sk53-osm.blogspot.com/2015/10/irish-vice-counties-creation-of.html > ; and especially the section headed "Technical Aspects (OSM)". > > In that section the author, sk53, says, "Creating a whole set of > boundaries encompassing one country and part of another is not a light > undertaking on OSM. It is fiddly work, and involves manipulating > objects with many dependencies. In practice I find it somewhat > reminiscent of software migration projects: mainly mundane but you > need to keep your wits about you. > > Contrary to what some believe, none of the OSM editors can prevent > damage to other objects in this process. Mapping boundaries on this > scale inevitably involves relations, and relations are not > semantically clean objects at the level of the OSM data model." > > I certainly agree with that assessment. > i have done a lot of work with admin boundaries in upstate NY and i find it critical to have a well planned workflow when handling this situation. otherwise there are lots of things that are easy to forget.
richard -- [email protected] Averill Park Networking - GIS & IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search
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