On Tue, 06 Jul 2010 12:11:40 -0400, "G. Michael Carter" <mi...@carterfamily.ca> wrote: > When importing the data do we favour yahoo existing data in OSM (which > is obviously traced from satellite imagery) or CanVec? I'm assuming > CanVec for parks would be based on official park boundaries rather than > yahoo, line of site on open spaces. So parks would be better coming > from CanVec. But what about buildings?
I think you need to make a judgement call based on all the data sources. Some things to consider: 1. Are there repeated GPS traces in the area you can use to help sway you one way or the other? 2. How "smooth" is the existing OSM data? I've run into OSM roads that are very "chunky" and do not agree at all with the Yahoo and/or Toporama data. In the end I've used a combination of both to realign and smooth things out. 3. For buildings I'm guessing that the stuff in OSM is likely the best. The buildings layer in CanVec is somewhat dated from what I can tell, especially in Winnipeg. Tyler _______________________________________________ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
