Re: person location WRT position

• From: Gavin Treadgold <gt@kestrel.co.nz>
• Date: Wed, 17 Sep 2008 10:51:26 +1200
• To: public-xg-eiif <public-xg-eiif@w3.org>
• Message-Id: <A3E971B0-822C-424B-8F3C-3AA75634B1EF@kestrel.co.nz>

Hi all,

On 2008-09-12, at 0704, Carl Reed wrote:

> A few emails ago I promised to provide clarification on the use of  
> the terms "location" viz "position". Turns out that after reviewing  
> the use of these terms in ISO, the OGC, and the IETF there appears  
> to be consistency!
>
> ISO 19112
>   location: identifiable geographic place
>
> ISO 19133
>   position: data type that describes a point or geometry potentially  
> occupied by an object or person

 From that, I would read that location is something that doesn't move,  
e.g. a town - an identifiable geographic place. An object/person has a  
property called position that identifies its current location.

So, anything that can move has a position, and everything that can't  
move (and this may include buildings, monuments etc) has a location. A  
position of course, can be mapped to a location (e.g. to calculate  
nearby locations).

Cheers Gav

Received on Tuesday, 16 September 2008 22:52:18 UTC