For the area here, they appear to all have monuments or the imagery is of insufficient quality to determine. What's the difference between a survey point and a turning point? Is it that one has a small change in direction while the other has a large change in direction?
For the 49th parallel, all of the monuments are of the form Mon xx or Mon. xx For the other regions, I see some are of the form TP xx. I don't think survey_point=turning_point is what we should use. http://taginfo.openstreetmap.de/keys/survey_point#values shows that it's mainly used to indicate the physical form of the survey point. > -----Original Message----- > From: Richard Weait [mailto:rich...@weait.com] > Sent: Sunday, March 27, 2011 1:46 PM > To: Daniel Begin > Cc: impo...@openstreetmap.org; talk...@openstreetmap.org; Paul Norman; > talk-ca@openstreetmap.org > Subject: Re: [Talk-us] Proposed import of IBC data (was RE: [Talk-ca] > NAD83-SCRS vs WGS84 Reference systems) > > On Sun, Mar 27, 2011 at 4:40 PM, Daniel Begin <jfd...@hotmail.com> > wrote: > > Thank Paul, a really good idea to include others as they are concerned > > :-) > > > > About tagging, I would agree with minor adjustments ... > > man_made=survey_point - agreed > > > > ref=xxxx - agreed to reference a monument id However, I would add a > > prefix for turning points, helping differentiate them from monuments. > > I propose the prefix "tp ": ref=tp 123 > > I'd prefer to see values without spaces, for ease of consuming > downstream. Does the source distinguish between monuments and turning > points? If not, perhaps following their lead makes sense by using their > ref=123, and adding something like survey_point=turning_point, or > similar? > _______________________________________________ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca