Hi Lorenz,
Thanks for the info. I'll look into adding options to disable these
dynamic conversions between units and geometries, as they can create
such large errors over large distances, so that users can choose to
switch them on.
Thanks,
Greg
On 24/02/2022 07:30, Lorenz Buehmann wrote:
Hi
as it is outside the GeoSPARQL standard.
Could you provide the WKT Geometry Literals returned by your query, so
that they can be tested directly for the asymmetry?
Thanks,
Greg
*A.3.1.4 /conf/geometry-extension/query-functions*
Requirement: /req/geometry-extension/query-functions
Implementations
/standards/geosparql#downloads
https://portal.ogc.org/files/?artifact_id=47664
Greg
On 12/12/2021 20:41, Marco Neumann wrote:
I wasn't are of the geo:is3D property myself but is is apparently in Req 12
of the final GeoSPARQL release V1.0
https://portal.ogc.org/files/?artifact_id=44722
maybe it's
of geo:Geometry (Section 8.4).
These values are inferred in the Jena implementation and do not need to
asserted to be accessed.
The standard also states that invalid geometry literals are to be
treated as errors, hence the 'DatatypeFormatException'.
Thanks,
Greg
On 11/12/2021 19:33, Marco Neumann
, the data can be loaded using the TDB API and the
GeoSPARQL Jena functions as also mentioned. Then GeoSPARQL Fuseki can be
started on the fully prepared TDB dataset.
All the best,
Greg
On 16/07/2021 08:01, Lorenz Buehmann wrote:
It's always a matter of whether you need one of those options or not.
So
rewriting: |GeoSPARQLConfig.setupNoIndex(false)|
Thanks,
Greg
On 28/03/2021 15:27, Andy Seaborne wrote:
Assuming not running in Fuseki ...
There is code not closing transactions.
There a large number of uncompleted write transactions (which may not
have made an update but did begin(WRITE
dataset.||
All the best,
Greg
On 29/10/2020 09:23, Jean-Marc Vanel wrote:
Hi Greg
The data are available at this SPARQL endpoint :
http://semantic-forms.cc:1952/sparql2
the queries are given in this thread.
BUT, I reread the documentation, and added
org.apache.jena.geosparql.configuration.GeoSPA
Hi Jean-Marc,
If you have an sample of data then I can take a look into this further.
Thanks,
Greg
On 26/10/2020 16:56, Jean-Marc Vanel wrote:
Indeed this helps, but it's still not clear weather and how I have to
prepare the database for GeoSparlql queries.
I changed my query according
from
one SRS or datatype to another, i.e. consolidating diverse data sources.
They aren't for generating non-RDF spatial documents. These are also for
GeoSPARQL structure datasets so a dataset using the LatLon geo
predicates would need to be converted (for which the
"convertGeoPredicates" might
= execCxt.getActiveGraph();' followed by
'graph.find(SUBJECT, PREDICATE, null)' and then handling the iterator to
unwrap the 'triple.getObject()'.
Hope this helps,
Greg
On 31/08/2020 15:00, Nouwt, B. (Barry) wrote:
Hi everyone,
for a project I have a set of sosa:Observation's and would like to use the elegant W3C
at some point and
this was an area where it was deemed more "nice" than "need".
Particularly since the user has several options to access the tool; it
is a variation from the primary use case; and supporting Lat/Lon in any
manner is an enhancement.
Thanks,
Greg
On 01/05/2020 03:
Using GeoSPARQL with Fuseki requires using GeoSPARQL Fuseki module,
which runs Fuseki as an embedded server and has no GUI support. Please
see documentation at:
https://jena.apache.org/documentation/geosparql/geosparql-fuseki
I don't think the mailing list supports images so it's unclear what
xample, "?lineA geo:sfEquals ?lineB" is equivalent to
"FILTER(geof:sfEquals(?lineA, ?lineB)) ".
Thanks,
Greg
On 19/04/2020 14:19, Lorenz Buehmann wrote:
On 19.04.20 14:55, Andy Seaborne wrote:
The rdflib output now shows ^^ on the literals so something has
changed. maybe it
should be present.
* The getProperty methods have been replaced by getRequiredProperty
methods which throws an PropertyNotFoundException as these
properties are both expected to be present.
Thanks,
Greg
On 17/02/2020 05:01, Holger Knublauch wrote:
A similar small issue seems to be when
users of the jena-spatial module.
Thanks,
Greg
functions available for use).
- existing jena-spatial property functions for GeoSPARQL and WGS84.
Any comments welcome.
Thanks,
Greg
On 21/12/2018 10:56, Jean-Marc Vanel wrote:
I hope it will not remove support for old and widespread vocabulary
http://www.w3.org/2003/01/geo/wgs84_pos#
https
missed something,
Greg
@Test
public void testValues_block() {
System.out.println("values_block");
String queryString = "PREFIX dc:
<http://purl.org/dc/elements/1.1/> \n"
+ "PREFIX : <http://example.org/book/> \n&q
Hi Kris,
As Lorenz says I have an implementation of GeoSPARQL for Jena 3.x but need to
make some changes and additional tests.
I'm planning to make it available as a separate project soon.
Querying of polygons using geof:sfWithin is supported.
Thanks,
Greg
-Original Message-
From
ase folder.
Hope this helps,
Greg
import com.bbn.parliament.jena.graph.KbGraph;
import com.bbn.parliament.jena.graph.KbGraphFactory;
import com.bbn.parliament.jena.graph.KbGraphStore;
import com.bbn.parliament.jena.graph.index.IndexFactoryRegistry;
import com.bbn.parliament.jena.graph.index.In
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
examples or documentation explaining this for Apache
SIS.
Thanks,
Greg
"Are your modules "pure" functions (i.e. agnostic to backend) or do they take
advantage of Jena's spatial index module?"
- The Property and Filter functions are agnostic to the backend. There is no
://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
,
Greg
From: Matt Sabs
Sent: 30 May 2018 22:53
To: users@jena.apache.org
Subject: Jena Fuseki Inference Configuration
Hello,
Does Apache Jena Fuseki offer Inference ability through reasoners such as the
OWL Reasoners described in the documentation?
The page Jena - Fuseki: Configuring Fuseki
y the Dataset/TDB? The Dataset will have to be opened to be
examined. Can a refresh be forced once the Dataset is open?
I'll look around to see what there is but any pointers would be really helpful.
Thanks,
Greg
-Original Message-
From: Andy Seaborne <a...@apache.org>
d tdbstats script.
It may also be useful for others to have access to this kind of method from the
TDB API as setting up the Jena scripts is quite convoluted on Windows.
Thanks,
Greg
org.apache.jena.tdb.base.file.FileException: Unable to check TDB lock owner as
the lock file contains in
,
Greg
-Original Message-
From: Andy Seaborne <a...@apache.org>
Sent: 04 April 2018 16:00
To: users@jena.apache.org
Subject: Re: TDB Assembly: Multiple Named Graphs with RDFS Inferencing
On 04/04/18 11:56, Greg Albiston wrote:
> Hi Andy,
>
> I'm trying to use the
chema path gives no errors or warnings so
it could be that the schema loading is silently failing.
The assembler loading throws syntax errors but nothing for the missing file.
Is there a way to confirm that the schema loads correctly?
Thanks,
Greg
-Original Message-
From: Andy Seaborne <a..
model. Is the same required for named graphs?
https://christinemdraper.wordpress.com/2017/04/09/getting-started-with-rdf-sparql-jena-fuseki/
Any help would be much appreciated,
Greg
@prefix : <http://example.org/my#> .
@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix
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