Fillets: Cues for connections in Focus+Context views of graph-like diagrams

T. J. Lukka, J. V. Kujala, Marketta Niemelä

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)


We apply fillets-smoothing of sharp angles at the joints-between the connections and nodes of graph-like diagrams. In situations where the graph layout is constrained, e.g. Focus+Context views or views where the coordinates of the nodes are informative, fillets can clarify the relationships considerably without altering the layout. A visual search experiment supports our hypothesis that with fillets it is considerably easier to perceive node-connection structures. We discuss algorithms with different tradeoffs for flexibility and performance for rendering these connections in a single pass using OpenGL.

Original languageEnglish
Title of host publicationProceedings Sixth International Conference on Information Visualisation
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Print)978-0-7695-1656-1
Publication statusPublished - 2002
MoE publication typeA4 Article in a conference publication
Event6th International Conference on Information Visualisation, IV 2002 - London, United Kingdom
Duration: 10 Jul 200212 Jul 2002

Publication series

SeriesIEEE Symposium on Information Visualization (INFOVIS)


Conference6th International Conference on Information Visualisation, IV 2002
Abbreviated titleIV 2002
Country/TerritoryUnited Kingdom


  • Books
  • Computer science
  • Connectors
  • Humans
  • Information systems
  • Information technology
  • Ink
  • Mechanical engineering
  • Smoothing methods
  • Tree graphs


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