Facet

Facet is a visualization. It is a piece of program code that processes a given RDF node and its context, the whole graph, and draws a visualization of a certain type.

In RDF, a facet is referenced by an IRI: this way, Linked Data can tell Iolanta how it can be visualized.

Facet Type	In RDF	In Code
Python based facet	pkg:pypi/some-pypi-package#facet-name	Python class, inherited from iolanta.facets.Facet

More types are planned

.

Facets

For now, the only facets that Iolanta supports are bundled with it.

• TitleFacet

  ---

  Render a human readable title for a node.

  • URI: pkg:pypi/iolanta#title
  • Outputs: string

• Class

  ---

  For an RDFS or OWL Class, render a list of its instances that we know about.

  • URI: pkg:pypi/iolanta#textual-classFacet
  • Outputs: Textual widget

• TextualDefaultFacet

  ---

  All RDF properties and their values for a given node in interactive textual UI. (Not best naming though.)

  • URI: pkg:pypi/iolanta#textual-properties
  • Outputs: Textual widget

• GraphFacet

  ---

  For an RDF graph, list triples that it contains.

  • URI: pkg:pypi/iolanta#textual-graph
  • Outputs: Textual widget

• NanopublicationFacet

  ---

  Display contents of a Nanopublication.

  • URI: pkg:pypi/iolanta#textual-nanopublication
  • Outputs: Textual widget

• OntologyFacet

  ---

  Display terms of an Ontology.

  • URI: pkg:pypi/iolanta#textual-ontology
  • Outputs: Textual widget

• TextualPropertyPairsTableFacet

  ---

  Display Subject → Object pairs for an RDF Property.

  • URI: pkg:pypi/iolanta#textual-property-pairs
  • Outputs: Textual widget

• Ideas for more?

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  Feel free to ➕ add an issue!