The RDFS/OWL Visualisation Language (RVL) is using concepts from the VISO/graphic ontology. The language allows for describing mappings from RDFS/OWL concepts to graphic attributes such as (viso-graphic:color_hsl_lightness) or other graphic relations (e.g. viso-graphic:Containment_Relation). Look at the post on RVL by Jan Polowinski.
The VISO documentation can now be accessed directly from the ontology’s URL, e.g.
You may also call resource-URIs like
Thanks to content negotiation, your ontology tools such as TopBraid Composer will still be able to receive the ontology’s data sources from the same adress. This does also work for some browsers such as Chrome (Select “Download file as …” from the context menu). Unfortunately Firefox seems to have some problems with our current set up. We will try to fix this. So far you can simply point your ontology editor to the the VISO URL, or watch the source by clicking on “Ontology source” in the documentation.