Marco Neumann wrote:
Hi Alex,
you can "easily" extend GeoSPARQL to support your desired geospatial index.
We use a spatial filter during query processing for candidate
selection as outlined by Voissard in Spatial Databases an Introduction
[1]. It would be great if you could build on what we already have in
the geospatialweb project
http://code.google.com/p/geospatialweb/
Hi Marco,
if we want to have this contributed to the Apache Jena project, do you think
there will be problems in relation to licenses of GeoSPARQL or any of its
dependencies?
Thanks,
Paolo
Best,
Marco
[1] http://page.mi.fu-berlin.de/voisard/
On Tue, Sep 13, 2011 at 7:42 AM, Alexander Dutton
<[email protected]> wrote:
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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
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