thhanke.github.io

addTriple

Assert any RDF triple on entities that already exist on the canvas. IRI object → object-property edge, renders on canvas immediately (both nodes must already exist — call addNode first if needed). Literal object → annotation property (rdfs:comment, skos:definition, etc.), visible after expandNode. Use addNode (not addTriple) when creating an entity for the first time — addNode writes type+label atomically and navigates to the new node. BLANK NODES: label MUST start with underscore-colon: "_:b0" NOT " :b0" NOT ":b0". OWL RESTRICTIONS via blank-node labels — 4 addTriple calls per restriction (use a DISTINCT label per restriction: _:b0, _:b1, _:b2 …): addTriple("_:b0","rdf:type","owl:Restriction") [MUST be owl:Restriction, NOT owl:Class] + addTriple("_:b0","owl:onProperty","ex:hasPart") + addTriple("_:b0","owl:someValuesFrom","ex:SalamiTopping") + addTriple("ex:SalamiPizza","owl:equivalentClass","_:b0"). Same label → same IRI → restrictions collapse — always use a distinct label per restriction. Alternatively use loadRdf with Turtle blank-node syntax (see loadRdf description).

Page: /ontosphere/

Input schema

{
  "type": "object",
  "properties": {
    "subjectIri": {
      "type": "string"
    },
    "predicateIri": {
      "type": "string",
      "description": "IRI of the predicate (e.g. rdfs:subClassOf, owl:disjointWith, rdfs:domain)"
    },
    "objectIri": {
      "type": "string"
    }
  },
  "required": [
    "subjectIri",
    "predicateIri",
    "objectIri"
  ]
}