[Tagging] RFC ele:regional

[Mark Wagner]

On Sun, 3 May 2020 14:16:09 +0200
Martin Koppenhoefer <dieterdreist at gmail.com> wrote:

> sent from a phone
> 
> > On 3. May 2020, at 13:06, Volker Schmidt <voschix at 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