Nice! So I'm not even preaching to the choir - i AM the choir
attempting to preach to the preacher!

Keep up the good work!

- Gunnar

On Mon, 26 Jul 2021 at 16:16, Nicholas Car
<nicholas....@surroundaustralia.com> wrote:
>
> I’m right on it Gunnar, QUDT unit conversion I mean. I’m actually on the Tech 
> Advisory Board of QUDT and am hoping to see QUDT more formally adopted by org 
> such as OGC, se we have QUDT featuring in the new GeoSPARQL Stanford’s 
> version, due out shortly, but am also looking for more ways to make it easier 
> to use and having a conversion function like you suggest has been raised.
>
> Also raised recently was UCUM unit conversion where microformat literals like 
> “10 m” & “30 ft/s^2” are used.
>
> Look out for both here in RDFlib in the next couple of months.
>
> I think RDFlib can lead on these implementations, given the ease of 
> interrogating the queried graph object and also the full Python set of tools 
> available. Much easier to add these extensions in RDFlib than in Jena.
>
> Hats off to the original SPARQL extension function authors!!
>
> Nick
>
> —
> Dr Nicholas Car
> Data Systems Architect
> SURROUND Australia
> 0477 560 177
> nicholas....@surroundaustralia.com
>
> > On 26 Jul 2021, at 11:01 pm, Gunnar Aastrand Grimnes <gromg...@gmail.com> 
> > wrote:
> >
> > Nice!
> >
> > Something I often thought about implementing was SPARQL functions for
> > doing unit conversions based on https://www.qudt.org/ stuff.
> >
> > I think this is a super demo of "inference" and RDF power - being able
> > to query for "X in kg/s" etc.
> >
> > I have no intention or time to do it now - but maybe someone feels inspired 
> > ;)
> >
> > Cheers,
> > - Gunnar
> >
> >> On Mon, 26 Jul 2021 at 14:43, Nicholas Car
> >> <nicholas....@surroundaustralia.com> wrote:
> >>
> >> Hi all,
> >>
> >> Hot off the back of the 6.0.0 release, I have here a small RDFlib 
> >> extension module, TimeFuncs (https://github.com/RDFLib/timefuncs) which is 
> >> just a library of RDFlib-implemented extended SPARQL functions that relate 
> >> to the Time ontology in OWL (https://www.w3.org/TR/owl-time/).
> >>
> >> This library, when shortly completed, will make RDFlib the first 
> >> implementation of such time functions (Jena & RDF4J are planned) and also 
> >> show neatly how others may extend RDFlib's SPARQL grammar.
> >>
> >> I'll add SPARQL extension notes to the RDFlib 6.0.1 release, due in a week 
> >> or two (minor docco updates on top of 6.0.0).
> >>
> >> Cheers,
> >>
> >> Nick
> >>
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