SpaceTree: Supporting Exploration in Large Node Link Tree, Design Evolution and Empirical Evaluation

Catherine Plaisant, Jesse Grosjean and Benjamin B. Bederson,     Human-Computer Interaction Laboratory, University of Maryland. E-mail address:,,


We present a novel tree browser that builds on the conventional node link tree diagrams. It adds dynamic rescaling of branches of the tree to best fit the available screen space, optimized camera movement, and the use of preview icons summarizing the topology of the branches that cannot be expanded. In addition, it includes integrated search and filter functions. This paper reflects on the evolution of the design and highlights ...

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