Monday, September 7, 2009

Re: [Geopriv] New version of geo-URI

In message <4AA41843.30406@bbn.com>, Richard Barnes <rbarnes@bbn.com>
writes

>Andy Mabbett wrote:
>> In message <8BC845943058D844ABFC73D2220D4665088A06AD@nics-
>>mail.sbg.nic.at>, Alexander Mayrhofer <alexander.mayrhofer@nic.at>
>>writes
>>
>>>> > I should like to see specific reference to the use-case of
>>>> > non-terrestrial (e.g. lunar, Martian) coordinates.
>>>>
>>>> And I specifically would not like to.
>>>
>>> I second that. Plus, i believe our esteemed chairs have declared
>>>that out of scope long time ago.
>> Cite, please?
>> My (apparently unanswered) post of 9 June 2009 refers:
>> http://www.ietf.org/mail-archive/web/geopriv/current/msg07337.htm
>>l

>Your comment is moot: There is no need for separate language relating
>to non-terrestrial CRSs because they can be supported by the same
>mechanism as terrestrial CRSs, namely the "crs" parameter.
>
>If you would like to define GEO URIs for any CRS other than WGS84
>(whether terrestrial or not), the appropriate action at this point is
>to write a Internet-draft defining a new CRS parameter value for the
>current URI scheme. You are welcome to write such a document, and
>propose it to the working group if you so desire.

I'm fully aware of all of the above; and am merely suggesting he
inclusion of half-a-dozen or so words, in order that it is made clear to
readers who are not.

For example, instead of:

The optional "crs" URI parameter described below may be used by
future specifications to define the use of CRSes other than
WGS-84. This is primarily intended to cope with the case of
another CRS replacing WGS-84 as the predominantly used one,
rather than allowing the arbitrary use of thousands of CRSes for
the URI (which would clearly affect interopability). [...]

perhaps:

The optional "crs" URI parameter described below may be used by
future specifications to define the use of CRSes other than
WGS-84. This is primarily intended to cope with the case of
another CRS replacing WGS-84 as the predominantly used one,
rather than allowing the arbitrary use of thousands of CRSes for
the URI (which would clearly affect interopability); and to
allow the use of non-terrestrial coordinates. [...]


--
Andy Mabbett
Says "NO! to compulsory UK ID Cards": <http://www.no2id.net/>
and: "Free Our Data": <http://www.freeourdata.org.uk>
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