> expressing uncertainty in degrees has been answered. With the
> beautiful amount of detail in recent answers; I may have missed it.
Hi Stephen,
It was Ivan posing the question. My most recent response to this was
(Ivan's text quoted at top):
--- snip ---
>
> Also note that when transforming from a given CRS to WGS 84, the
> transformation of the associated uncertainty may be non-trivial.
Correct. That's why i am in favour in *always* expressing uncertainty in
meters - which would
A) not require any transformations on the uncertainty value
B) make the uncertainty parameter independent from the crs parameter
C) make uncertainty understandable and measureable to non-GIS people too
(my mum understands +/+100 meters, but not +/-0.03 degrees)
--- snip ---
I think that uncertainty should be speicified in meters, independent
from the CRS, and the members of the WG that i have spoken to seem to
agree.
Alex
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