There is also Parliament [1] which offers both geospatial and temporal indexing graphs.
Dave [1] http://parliament.semwebcentral.org/ On Tue, 2011-09-13 at 13:08 +0100, Paolo Castagna wrote: > Hi Alex, > great to hear that, you are welcome. > > Something similar using Lucene Spatial capabilities instead of > a proper GIS is here (it's just a less than two days hack): > https://github.com/castagna/GeoARQ > > I was planning to post something along the lines of "making > easier to plug LARQ or similar into ARQ", but unfortunately I do > not a good idea (yet). > > It would be good to enable third parties to add their own property > functions (that's possible) which use custom indexes and need to > update those indexes as triples/quads are added/removed to the > underlying RDF store. > > More on this later, in the meantime: welcome. > > Paolo > > Alexander Dutton wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Hi all, > > > > We've currently got a lot of (simple) geospatial data in > > <http://data.clarosnet.org/> (served behind the scenes by Fuseki). > > > > We'd like to do some geospatial indexing magic, and were wondering > > about writing something a bit like LARQ that will pull out things like > > geo:Points and WKT literals, place them in a PostGIS-flavoured DB, and > > then implements something like GeoSPARQL (<http://geosparql.org/>). > > > > Has anyone started doing this or something similar? I'm happy to give > > it a go and I'm sure my employer would be happy to contribute it back > > to Jena and the ASF. My plan was to go through the LARQ codebase to > > work out how it hooks itself in, and use that as a model. > > > > Yours, > > > > Alex > > > > - -- > > Alexander Dutton > > Metamorphoses Project Developer, Claros > > Oxford University Computing Services, ℡ 01865 (6)13483 > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v1.4.11 (GNU/Linux) > > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ > > > > iEYEARECAAYFAk5vQbgACgkQS0pRIabRbjC9QACfTZtTcFIhDXjWPR+MpEWunKkt > > 38oAnR5n+oi1nuTZAfRdOrF2mcOac2Ck > > =r1dj > > -----END PGP SIGNATURE----- > > >
