On Wed, May 12, 2010 at 9:42 AM, Victor Bielawski <[email protected]> wrote: > On Wed, May 12, 2010 at 1:32 PM, Bégin, Daniel > <[email protected]> wrote: >> What distance did you use? I was to use 0.0001 degree (about 10 meters in >> Halifax) for addressing in Canvec.osm. What would you suggest? > > Please please *please* use metres. Merkaartor has some code that > generates address interpolation ways using degrees, and it results in > the distance from streets depending on the street's orientation, and > looks plain ugly in any projection apart from latlon. > > As for the distance itself, I'd prefer 14-17 metres for > highway=tertiary and below, and 20-23 metres for highway=secondary and > above, if such a distinction is possible. This is based on > observations from Toronto and area; I don't know about other cities.
Thank you for those observations, Victor. There was a project a while back to create these offset interpolation ways automatically. I don't recall the outcome, or the link, sadly. There were demos including some interesting artifacts when faced with short ways, acute angle and twisty ways. Anybody recall that link? _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
