Re: [dhcwg] Fwd: Working Group Last Call: Location Configuration Information for GEOPRIV
Robert Elz <kre@munnari.OZ.AU> Fri, 20 June 2003 12:44 UTC
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From: Robert Elz <kre@munnari.OZ.AU>
To: Ralph Droms <rdroms@cisco.com>
cc: dhcwg@ietf.org, mankin@psg.com, geopriv@mail.apps.ietf.org
Subject: Re: [dhcwg] Fwd: Working Group Last Call: Location Configuration Information for GEOPRIV
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Date: Fri, 20 Jun 2003 19:38:39 +0700
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The definitions of altitude in that draft need work. Metres (positive and negative) is simple enough, but relative to what? Unless I missed it, I could find no definition of what is 0. If the assumption is that it is to be "mean sea level" then which sea? If it is to be above (+ or - below) ground level, which ground level within the designated area given by the latitude and longitude (sloping ground). When measured in floors, the "0" means ground level is fine, but how are floors counted? Is there some standard, or does anyone count them however they like. Can one assume that if some device is at altitude (as a floor) N, then something at N+2 will be two floors up? If N==12? How do buildings with offset floors work, where in one side of the building you can go up (naturally) a floor at a time, but on the other side all the levels are offset by a half a floor? Just to confuse things more, there's a building not too far away from where I am which has two "level 2" floors, that is, the elevator stops twice between floor 1 and floor 3 (they're called 2b and 2d - though I have not the vaguest idea what the 'b' and 'd' mean - 2d is above 2b). There needs to be more text describing just what floor numbers mean, and perhaps how the numbers are meant to be translated to and from the external designations that people use. kre _______________________________________________ dhcwg mailing list dhcwg@ietf.org https://www1.ietf.org/mailman/listinfo/dhcwg
- [dhcwg] Fwd: Working Group Last Call: Location Co… Ralph Droms
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Robert Elz
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… John Schnizlein
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Robert Elz
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Andrew Daviel
- RE: [dhcwg] Fwd: Working Group Last Call: Locatio… Marc Linsner
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Henning Schulzrinne
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… creediii
- [dhcwg] Unit of Measurement...? James M. Polk
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… John Schnizlein
- [dhcwg] Re: Unit of Measurement...? James M. Polk
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… James M. Polk
- RE: [dhcwg] Fwd: Working Group Last Call: Locatio… Marc Linsner
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Henning Schulzrinne
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Greg Troxel
- [dhcwg] Re: Unit of Measurement...? Henning Schulzrinne
- [dhcwg] Re: Unit of Measurement...? Greg Troxel
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Greg Troxel
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Greg Troxel
- [dhcwg] Re: Unit of Measurement...? Carl Reed
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Dominic Pinto
- Re: [dhcwg] Fwd: Working Group Last Call: Locatio… Carl Reed