[...]
>> Then, what is the "dimension" of those values? Is is a circle, or a
>> sphere? In "natural" space, or in the "projected" space (lat/lon
>> circle, which would definitely not give a circle in "real world"?)
>> What is the dimension (meters, inches, degrees?).
> SI units are good.
... Except that these would be quite hard to apply to the
(latitude, longitude) pairs as specified by the geo: URIs.
The location specification reading ``53 degrees latitude
plus/minus 1000 meters, ...'' seems rather unsound to me. I'd
expect the deltas' dimensions to align with the corresponding
axes' dimensions, as per the CRS used.
FWIW, the coordinates and the respective deltas will define an
ellipsoid in the projected space where the object is to be found
with the specified confidence (e. g., 95%.)
Note that the ellipsoid defined in one projected space may
correspond to an arbitrary complex shape in some other projected
space. But I'd leave this complexety off the geo: scheme
specification.
[...]
--
FSF associate member #7257
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