RE: RE: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-30 Thread Greg Albiston
Hi Martin, Thanks for the information. I’ll look into making the switch over to SIS from GeoTools. Thanks again, Greg From: Martin Desruisseaux Sent: 28 August 2018 22:18 To: greg_albis...@hotmail.com Cc: users@jena.apache.org Subject: Re: RE: GeoSPARQL modules Was: Spatial distance

Re: RE: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-28 Thread Martin Desruisseaux
Hello Greg On 2018/08/28 15:25:42, Greg Albiston wrote: > It's not clear to me whether JTS can be used with Apache SIS for point > 3 and perhaps Martin can help? > It let users choose between JTS, ESRI API (under Apache 2 license) or Java2D as a fallback. If using JTS, the version is 1.15+

RE: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-28 Thread Greg Albiston
rs@jena.apache.org Subject: Re: GeoSPARQL modules Was: Spatial distance in Fuseki Yes - this sounds very interesting. I can help with moving this forward, as either contribution or extending project. There is something to be said for starting separately (release is not coupled to Jena release

Re: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-28 Thread Martin Desruisseaux
Le 28/08/2018 à 00:34, Andy Seaborne a écrit : > Good to hear from you and about the status of Apache SIS. It would > make it easier for the end users if there were license commonality. > Thanks. Apart from licensing and the "org.opengis" namespace issue, the choice between GeoTools and Apache

Re: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-27 Thread Andy Seaborne
Hi Martin, Good to hear from you and about the status of Apache SIS. It would make it easier for the end users if there were license commonality.     Andy On 27/08/18 14:13, Martin Desruisseaux wrote: Hello Andy, Greg and all It has dependencies on JTS, for spatial relations and distances

Re: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-27 Thread Martin Desruisseaux
Hello Andy, Greg and all >> It has dependencies on JTS, for spatial relations and distances etc., >> and GeoTools, for coordinate reference system conversions. >> Sorry to jump in the middle of the discussion; I would like to introduce some elements in case they are worth consideration. An

Re: GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-27 Thread Andy Seaborne
into Jena or better as an extending project? Also, the GeoSPARQL function namespace mentioned by the OP seems incorrect. The published namespace is: geof: http://www.opengis.net/def/function/geosparql/ Thanks, Greg From: Andy Seaborne Sent: Friday 24 August, 18:29 Subject: Re: Spatial distance

GeoSPARQL modules Was: Spatial distance in Fuseki

2018-08-24 Thread ajs6f
is be suitable for incorporating into Jena or better as an extending > project? > > Also, the GeoSPARQL function namespace mentioned by the OP seems incorrect. > The published namespace is: > > geof: http://www.opengis.net/def/function/geosparql/ > > Thanks, > > Greg > >

Re: Spatial distance in Fuseki

2018-08-24 Thread Greg Albiston
://www.opengis.net/def/function/geosparql/ Thanks, Greg From: Andy Seaborne Sent: Friday 24 August, 18:29 Subject: Re: Spatial distance in Fuseki To: users@jena.apache.org (PS JENA-664 is the open JIRA for GeoSPARQL) A complete example with imports etc: https://gist.github.com/afs

Re: Spatial distance in Fuseki

2018-08-24 Thread Andy Seaborne
(PS JENA-664 is the open JIRA for GeoSPARQL) A complete example with imports etc: https://gist.github.com/afs/a8dfe6680324110bdb675190f9c73035 and also below. This is for doing everything in one java program. It is the simplest way and runs in an IDE for debugging. My main problems in

Re: Spatial distance in Fuseki

2018-08-24 Thread Markus Neumann
Thanks for the input. I was actually just assuming, that Jena would support it in some way. I've gone through https://jena.apache.org/documentation/query/writing_propfuncs.html

Re: Spatial distance in Fuseki

2018-08-24 Thread ajs6f
I'm no expert on Jena's GeoSPARQL support, but our docs: https://jena.apache.org/documentation/query/spatial-query.html don't mention any such namespaces as http://www.opengis.net/rdf/functions#. Where did you see it documented that Jena supports such functions? I only see a small and specific

Spatial distance in Fuseki

2018-08-24 Thread Markus Neumann
Hi, I'm quite new to both Fuseki and mailinglists, so please be patient with me. I've managed to set up a Fuseki 2 server together with a Lucene spatial index. E.g the following query works as expected: PREFIX geo: PREFIX geosparql: