[OSM-talk] RFC: geodesy=pillar

[Francisco R. Santos]

On 7/16/07, Andy Robinson <Andy_J_Robinson at blueyonder.co.uk> wrote:
>
> Mike Collinson wrote:
> >Sent: 16 July 2007 7:45 PM
> >To: talk at openstreetmap.org
> >Subject: Re: [OSM-talk] RFC: geodesy=pillar
> >
> >At 07:38 PM 16/07/2007, Dirk-Lüder Kreie wrote:
> >>-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA1
> >>Iván Sánchez Ortega schrieb:
> >>> Call them triangulation pillars, call them geodetic vertices, call
> them
> >how > you like. Fact is, I'm gonna upload a few thousand of them in a
> >couple of > days.> > So, I'm proposing the following tags to be applied
> on
> >nodes:> > geodesy = pillar> Depicts a geodetic (or geodesic) pillar> >
> >geodesy:network = foobar> Several pillars together form a geodetic
> network,
> >which usually has a name.> > geodesy:reference = 1234> Pillars in the
> same
> >network are identified by a reference number.
> >>I couldn't attend SOTM but I do have one request with respect to thenode
> >tagging:Can you use a more general term than "pillar" because that seems
> >toapply to western europe only.
> >>I'm trying to get a list of german "nodal points" without databaserights
> >constraints. Those are seldomly in the form of a pillar. (in factI have
> >seen no pillars in .de or .at, but different forms of marking thepoint in
> >question. (mostly involving some brass "nail" in some sort ofstone
> >foundation or a cross mark chiseled into the surface of the rock)
> >>You might also want to register wether the vertex is just for
> >eitherpositional or height reference, or both.
> >>-
> >
> >In the UK, I believe geodetic surveyor's marks are called "benchmarks" (I
> >don't recall if that is one or two words).  Would that suffice?
> >
>
> Benchmarks apply only to survey points with a specific elevation rather
> than
> a specific location. However it's important to note that many geodetic
> survey stations include benchmarks.


How about "geodesy:survey_marker", or simply "geodesy:marker"?
http://en.wikipedia.org/wiki/Survey_marker. They can be benchmarks or trig
points.

Regards
Quico

Cheers
>
> Andy
>
>
> >Mike
> >
> >
> >
> >_______________________________________________
> >talk mailing list
> >talk at openstreetmap.org
> >http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
>
>
>
> _______________________________________________
> talk mailing list
> talk at openstreetmap.org
> http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk/attachments/20070716/82be6146/attachment.html>