BimSPARQL
SPARQL query with extended functions for query ifcOWL. It is a prototype implementation as proof of concept. All the defined functions are in the /Vocabularies folder. In each vocabulary(*.ttl file), mapping to ifcOWL (using SPIN www.spinrdf.org) or coding snippts are included. It has adopted the Extended Well Known Text to represent IFC geometry data in RDF, and geometry-related functions are developed on top of it. For using geometry related functions, it requires the /exe folder of IfcOpenShell Bimserver plugin in https://github.com/opensourceBIM/IfcOpenShell-BIMserver-plugin . Put the /exe folder in that repo under the directory of /src/main/resources/. It is used to preprocess IFC or ifcOWL data to generate additional geometry triples.