[uf-discuss] Geo Elevation Data
Andy Mabbett
andy at pigsonthewing.org.uk
Tue Mar 13 00:01:16 PST 2007
In message <004001c76527$85ca0e10$bc08a8c0 at nzto22>, Paul Wilkins
<pmw57 at xtra.co.nz> writes
>> My first question is whether elevation has been proposed as part of
>> the geo draft specification? Adding the third dimension would seem
>> natural and would add additional precision when adopted.
>
>Unfortunately the third dimension is being rejected at this time.
How very two dimensional!
> However, if the vCard spec is updated to include an altitude
>component, then it will definately become a part of the hCard spec too.
>http://microformats.org/wiki/hcard-issues
I have yet to see any good reason why hCard (and Geo) cannot have extra
fields, which are simply dropped when generating vCards (likewise
hCalendar - see the "date of death" debate)
>> My second question is whether or not, for line data, it is acceptable
>> to include multiple latitude and longitude classes, in sequence, which
>> make up the line in sequence or if there is a better way to do it?
>
>What kind of use do you envisage web tools being able to use that line
>sequence information for?
Route mapping?
Boundary description?
>This may be a case where something greater than the Geo microformat
>(which is point specific) is required.
There is no reason why this could not be an extension of Geo.
Note also:
<http://microformats.org/wiki/geo-extension-strawman>
--
Andy Mabbett
* Say "NO!" to compulsory ID Cards: <http://www.no2id.net/>
* Free Our Data: <http://www.freeourdata.org.uk>
* Are you using Microformats, yet: <http://microformats.org/> ?
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