OWLViz not displaying diagram centrally

Question

View of Protege/OWLVizI have just installed Protege v5 and opened the Pizza ontology. The OWLViz visualisation is showing at the top left corner. Nothing I seem to do will centralise the OWLViz view (see attached.)

have tried help, which points me to this: https://github.com/protegeproject/owlviz

googled, looked down the list of Stack Overflow OWLViz question, tried ChatGPT!

Answer 1

I had the same issue just now and found my answers here: https://github.com/protegeproject/owlviz/issues/19

Basically you need to install Graphviz from here https://graphviz.org/download/ . Then open Protege -> File -> Preferences -> OWLViz, change Path to DOT accordingly to where you installed Graphviz and restart Protege. Be particularly careful with the path and you should be set.