Non-Topological Functions of geoSPARQL on Ontop

[Sajith Ranatunga]

Hello, 

Does any one have experience with spatial queries with Ontop? 

Like Non-Topological Functions ( geof:distance, geof:buffer, geof:intersection),

Does Ontop support these functions?

Thanks

[Sajith Ranatunga]

This is the code I'm working on and the error I'm getting . 

[Sajith Ranatunga]

This is the original work from Ding Fang

https://github.com/dinglinfang/suedTirolOpenDataOBDA

[Guohui Xiao]

Hi,

It seems that you have used a wrong prefix of geof. 

The correct one is

http://www.opengis.net/def/function/geosparql/

According to the GeoSPARQL standard (https://docs.ogc.org/is/22-047r1/22-047r1.html)

For the GeoSPARQL support in Ontop, a summary is available here: https://ontop-vkg.org/guide/compliance.html#geosparql-1-0

Best regards,

Guohui

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[LB]

Hi,

yes, it does see the docs regarding compliance: https://ontop-vkg.org/guide/compliance.html#geosparql-1-0 

Lorenz

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