Expressing position in RDF

[Matthew Graham]

Hi,

No, there was no intended subtlely to the question (which is why I  
flagged it as a practical question). I just want to know what ontology  
I can use this afternoon to represent equatorial coordinates in RDF.

	Cheers,

	Matthew


On Oct 10, 2008, at 3:55 PM, Rob Seaman wrote:

> Rather, don't you really want to represent something like "object  
> has a WCS" and "the object's WCS corresponds to an RA of 134.556"?   
> Not to be pedantic (no more so than usual, anyway), but science and  
> technology are chock full of data structures that don't resolve to  
> simple scalars.  I presume the ontological issue here is something  
> about how to represent cardinality, rather than the more usual  
> finite enumerated list of domain responses?
>
> In any event, Matthew's question seems close to the essence of what  
> needs to be answered to ever hope to win the hearts of scientists.   
> For instance, SysML is a similar step in this direction compared to  
> UML, permitting assertions of physical constraints in state  
> machines, etc.
>
> Rob
> --
>
> On Oct 10, 2008, at 3:39 PM, Matthew Graham wrote:
>
>> Hi,
>>
>> A practical semantic astronomy question:
>>
>> I want to represent the relationship "object has a RA of 134.556"  
>> as an RDF triple. Is there any existing ontology that would allow  
>> me to do this? The best I've seen so far is to use the UCD as the  
>> predicate.
>>
>> 	Cheers,
>>
>> 	Matthew
>