> -----Original Message-----
> From: geopriv-bounces@ietf.org [mailto:geopriv-bounces@ietf.org] On
> Behalf Of Alexander Mayrhofer
> Sent: Tuesday, 28 July 2009 9:45 AM
> To: Ivan Shmakov; geopriv@ietf.org
> Subject: Re: [Geopriv] geo: URI: what about uncertainty?
>
> >
> > Any particular reason not to allow for an uncertainty
> > information to be specified in the URI?
> >
>
> I am definitely not the expert who had addressed that for previous
> protocols, but i remember there was always a heated discussion (3825
> comes to my mind).
That's a misleading argument. The contention in 3825 was for different reasons.
> First, there's a difference between "uncertainty" and "object
> dimension"
> (uncertainty is how "unsure" the measurement is, while what you
> describe
> is more "what is the approx. Size of the location to be represented).
That's a fair comment. However, as it stands, there is nothing that even helps. Often size of uncertainty can be used to provide _some_ help.
> 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.
> If you want, we can set up a quick chat here in Stockholm about it -
> and
> i would love to have someone who was involved in other "uncertainty"
> discussions joining...
I'm sitting right behind you... ;)
> Alex
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