Point-based tree representation: A new approach for large hierarchies

  • Authors:
  • Hans-Jorg Schulz;Steffen Hadlak;Heidrun Schumann

  • Affiliations:
  • University of Rostock, Germany;University of Rostock, Germany;University of Rostock, Germany

  • Venue:
  • PACIFICVIS '09 Proceedings of the 2009 IEEE Pacific Visualization Symposium
  • Year:
  • 2009

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Abstract

Space-filling layout techniques for tree representations are frequently used when the available screen space is small or the data set is large. In this paper, we propose a new approach to space-filling tree representations, which uses mechanisms from the point-based rendering paradigm. Additionally, helpful interaction techniques that tie in with our layout are presented. We will relate our new technique to established space-filling techniques along the lines of a newly developed classification and also evaluate it numerically using the measures of the Ink-Paper-Ratio and overplotted%.