On 11/03/2015, Martin Koppenhoefer <dieterdre...@gmail.com> wrote: > 2015-03-11 12:49 GMT+01:00 John Willis <jo...@mac.com>: > >> I assume a tower on a distant mountain is a survey_reference_object or >> similar. It certainly isn't a point. > > maybe the tower has a point defined (e.g. top of the antenna or a sign or > similar) which could be a survey_point.
Here is a fine example of this case : http://www.openstreetmap.org/way/236843122 The description tag explains that the reference point is the base of the christian cross on this bell tower. I think it makes sense of mapping this this way : in a sense the whole building *is* the man_made=survey_point. Adding a separate survey_point node would have little benefit. There are other examples like this one, but not all of them have a neat description of where the precise survey point is on the structure. On the other hand, some ways look a bit pointless and could probably be nodes, but a survey is needed to be sure: http://www.openstreetmap.org/way/4041174 http://www.openstreetmap.org/way/315474577 _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging