[uf-discuss] Proposal: Lunar/ Mars co-ordinates (like "geo")

Scott Reynen scott at randomchaos.com
Mon Sep 18 15:42:28 PDT 2006

On Sep 18, 2006, at 5:19 PM, Kevin Marks wrote:

> On Sep 18, 2006, at 1:23 PM, Andy Mabbett wrote:
>>> - do we really need a /different/ microformat for every body being
>>> described? is there a way to add a third value for type (or body, or
>>> something more appropriate) to geo without breaking exiting spec /
>>> rules or muddying things up too much?
>> I did consider that, but I'm not sure how one could attach the extra
>> attribute, I also considered "geo-luna" and "geo-mars"; but the  
>> meaning
>> of "geo" is "(planet) Earth", so it's not really appropriate.
> How about adding a container around the geo that specifies the  
> planet (or geoid, if you want to get extra fussy. You can say it  
> defaults to WSGS-84, which is backwards compatible).

Anything that doesn't treat everything marked with class="geo" as  
coordinated on Earth will not be backwards compatible, because that's  
the assumed planet for all existing geo parsers.  Currently  
class="geo" is implicitly defined as referring to Earth, and re-using  
it for the moon and Mars would be changing the definition to refer to  
any spherical body in the universe.  I don't see much advantage in  
making that change.  For parsers, it will create more work.  For  
publishers, aren't we just talking about the difference between  
class="geo luna" and class="geo-luna"?


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