situx commented on issue #3828: URL: https://github.com/apache/jena/issues/3828#issuecomment-4170315574
Hi @VladimirAlexiev , https://github.com/i3mainz/jena-geo and https://github.com/i3mainz/rdf4j-geo have been prototypical implementations to port POSTGIS functions to Apache Jena and RDF4J, respectively. Most of these functions rely on the Java Topology Suite (JTS) in the background. I can confirm, though, that these implementations do not support GeoSPARQL 1.1 because it did not exist at the time. There is an overlap in the implementations of functions, but not 100%. There are no further plans for these implementations, and admittedly, as you said, they are now 6 years old. However, I think if there is interest, I could work on adding some or all of these functions as a pull request to Apache Jena mainstream. We would need to agree on a namespace for non-GeoSPARQL geo functions and then I could begin adding these functions to what is currently in Apache Jena. I can not do that immediately, though, since I am currently focusing on: * GeoSPARQL 1.1 (and more) for rdflib here: https://github.com/situx/rdflib-geosparql (https://situx.github.io/rdflib-geosparql/) based on shapely * GeoSPARQL 1.1 (and more) for comunica here: https://github.com/situx/comunica-geosparql/tree/geosparql (https://situx.github.io/comunica-geosparql/) based on turf.js I could start once these implementations are at a more advanced stage. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
