I uploaded the data with the lines overlapping. I figured by combining the ways into one with left and right tags, we are making it quite a bit harder to query the database to determine which county any particular point is in. Also, there would be a significant amount of work to write the import app to do that, and I didn't think it was worth it to add time on both ends of the workflow.
On Mon, May 12, 2008 at 6:14 PM, Ted Mielczarek <[EMAIL PROTECTED]> wrote: > On Fri, May 9, 2008 at 10:41 AM, Ian Dees <[EMAIL PROTECTED]> wrote: > > Hi everyone, > > > > While I was trying to figure out how to divide the massive NHD dataset > into > > more management pieces, I found a county boundary dataset and converted > it > > to OSM. > > > > I uploaded Wisconsin and Minnesota county boundaries and submit them for > > your review. One minor issue: > > > > http://tah.openstreetmap.org/Browse/?x=1036&y=1489&z=12&layer=tile > > ... shows that each county is a separate, closed way in OSM. This means > that > > at most boundaries, the dashed lines that are used to render political > > boundaries are overlapping and look odd. I can't see a way around this > > without losing metadata. > > > > If you have any opinion on how this data is represented, please let me > know. > > Otherwise, I will upload the rest of the country later on this weekend. > > I looked at this data when I uploaded the state borders a while ago. > The state borders I (and Adam) split by hand into non-overlapping > sections, tagging them with left:state and right:state appropriately. > I figured it would be too much work to do the county borders manually > like that, but I didn't feel like trying to write a program to do it > in an automated fashion either. I'm not really excited for having lots > of overlapping borders like that, but I guess I can manually clean up > the ones in my area if I care enough. > > -Ted >
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