On Mon, 2009-03-23 at 20:05 -0400, Michel Gilbert wrote: > 2009/3/23 Sam Vekemans <[email protected]> > > I have not yet received the answer from NRCan about if the > location of the node is EXACTLY where the building actually > is, or is it just shown in the general area. If it is the > former, then this information can be taken into account.
Sam, why should the building point location be EXACT? We know that all data, regardless of source, will have a degree of precision depending on many things. Buildings are worth having, in my opinion, even if only as a point. > The position of buildings may be "exact" if the acquisition methods > was from stereo-digitization. If it came from map scanning they may > have been displaced for map representation purposes. My guess is 80% > of the buildings in CanVec come from map scanning. > What i can do, and i presume that you all would agree, is to > add this feature to the "not4osm" folder so then it could be > used as an assistant for the person who is actually uploading > the information. I disagree. Worth including in my opinion. Default renders may chose to render them or not. Some future render may do "cool things" based on the number of buildings / area. Who can predict future creativity? The buildings exist, or existed at the time of survey. Worth knowing. > Following the new information I received from > [email protected] (i have just forwarded the email to > talk-ca) we may still want them for mapping purposes. > > We can list them, then check with the [email protected] > talk if they are part of the render feature. And even if the default renderers don't want point buildings, perhaps the renderer at openstreetmap.ca will. Or YourCompany.com might make a fortune offering point-building renderers. > For example, when the feature lists 9 or so different feature > types, the general practice for both GeoBase & CanVec is to > state "-1" unknown and "0" none ... i would suggest that > these features be omitted from the import also. > > Any thoughts on that? Sam, I'm sure I don't know to what you refer here. Could you clarify please? > Again it depends if the [email protected] talk confirm > that no render is possible. If we really want them display we can ask > them ? Even if the default mapnik, t...@h and others don't render point-buildings we can adjust them for our own purposes. (We can also ask the maintainers to add support for point buildings.) Best regards, Richard _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
