On Sun, 3 May 2020 14:16:09 +0200 Martin Koppenhoefer <dieterdre...@gmail.com> wrote:
> sent from a phone > > > On 3. May 2020, at 13:06, Volker Schmidt <vosc...@gmail.com> wrote: > > > > When I see an elevation value on the ground I do not see any > > reference to the reference system, so I cannot know, as a mapper, > > what reference system is at the base of the informaton that I find > > on the ground. In that respect the proposal is not at all clear > > from a practical perspective > > > the idea is you do not even have to know, simply copy the value from > the sign. What about regions where two or more reference systems are in common use? If I copy an elevation from a USGS benchmark and put it in "ele:regional", how does an end-user know if it's a recent benchmark measured in NAVD 88 or an older benchmark measured in NVGD 29? -- Mark _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
