STC in VOResource records

Ray Plante rplante at poplar.ncsa.uiuc.edu
Thu Dec 14 11:29:52 PST 2006


On Thu, 14 Dec 2006, Ed Shaya wrote:
> If you want both coverage and system to stay within one file, then you have:
> xlink:href="#MY-UTC-FK5-BOTTOMO"
> coord_system_href="#MY-UTC-FK5-BOTTOMO"
> And then it behooves you to put in the whole spiel right there.

Oooh, this is intriguing!

Someone (who was probably Matthew) made the suggestion that the we 
essentially replace the coord_system_href with xlink:href.  Your example 
illustrates that it could point either to an internally defined coordinate 
system or an external one.  Then, the coordinate system part of the 
description would be optional.

We're almost there now anyway, because when using standard systems, the 
coordinate system definition blob is just a pointer to an external 
document anyway.  If the xlink:href that replaces coord_system_href is 
mandatory, then the author cannot get away without fully specifying the 
applicable coordinate system.

This, of course, requires STC to be changed.

cheers,
Ray



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