Posts Tagged ‘rdfreactor’

Java3D Visualization of landmarks in RDF Format

Thursday, November 6th, 2008

After some hacking we can now visualize anatomical landmark instances modeled in the format of the MEDICO Ontology Hierarchy with RDFReactor and Java3D. The very first version of the visualization app allows to “fly” through annotations loaded from a triple store. Each organ is displayed using a sphere and has the label of the concept without the namespace (which is from the FMA).

screenshot of visualization app

screenshot of visualization app

OWL2RDFS for RDFReactor

Tuesday, October 21st, 2008

In MEDICO we use RDFReactor a generate Java classes from our MEDICO Ontology Hierarchy. This allows us to interact with Java objects at source code level instead of generating RDF statements from scratch.

Problem: Unfortunately RDFReactor does only support RDFS but not OWL. Therefore the unified.owl needs to be adapted like this:

original

new

new

I’ve written a Java program using RDF2Go to perform this conversion. It is far from beeing perfect and generic, but it works for us. You can download it from here.

Meanwhile, Patrick Ernst at DFKI has developed a Maven2 RDFReactor plugin. You can find the documentation and a download link here: http://www.dfki.uni-kl.de/hudson/job/RDFReactorPlugin/site/index.html