Re: [Geopriv] Direction for draft-ietf-geopriv-binary-lci

["Winterbottom, James" <[e-mail]>]

If we are defining "Thick Points" then a new LoST profile is also
required.


> -----Original Message-----
> From: Andrew Newton [mailto:[e-mail]]
> Sent: Saturday, 16 February 2008 12:36 AM
> To: Brian Rosen
> Cc: Thomson, Martin; Winterbottom, James; GEOPRIV WG
> Subject: Re: [Geopriv] Direction for draft-ietf-geopriv-binary-lci
> 
> 
> On Feb 13, 2008, at 6:15 PM, Brian Rosen wrote:
> 
> > You can't measure a point.  We all agree, a point is too small.  We
> > aren't
> > going to define new absurdities like "thick points".  We
> > approximate, we
> > express location of an object as location of a point with some
> > specified
> > confidence and uncertainty.
> >
> > My conclusion is that 3825 is wrong.  The mistake arose from a lack
of
> > appreciation for the difficulty in determining precision, and not
> > understanding that the practitioners have defined a mechanism to
> > express
> > precision which is not significant digits and standard deviation.
> > We made a
> > mistake.  It was a reasonable mistake to make, but it was a
> > mistake.  We
> > need to express geo precision using confidence and uncertainty.
> > That is the
> > way the experts agreed to do it.  We don't have superior expertise
> > in that
> > area.  The experts understand the issues and decided.  We should
> > play along.
> 
> I think Brian has a point here.  If the IETF is defining thick points,
> even implicitly as in 3825, then it should probably defer to an
> organization with the bona fides to do this subject justice.  GEOPRIV
> uses the OGC's GML standard quite heavily, and has in the past handed
> off work to them.  Hannes has suggested the definition of a DHCP
> option that is more compatible with GML.  That is a good idea, if for
> no other reason than the rest of the GEOPRIV standards use GML.
> 
> -andy

------------------------------------------------------------------------------------------------
This message is for the designated recipient only and may
contain privileged, proprietary, or otherwise private information.  
If you have received it in error, please notify the sender
immediately and delete the original.  Any unauthorized use of
this email is prohibited.
------------------------------------------------------------------------------------------------
[mf2]

_______________________________________________
Geopriv mailing list
[e-mail]
http://www.ietf.org/mailman/listinfo/geopriv