Focus+Context Display and Navigation Techniques
Enhancing Radial, Space-Filling Hierarchy Visualizations
John Stasko and Eugene Zhang
Proceedings of IEEE Information
Visualization 2000, pp. 57-65.
Salt Lake City, UT, October
Paper (PDF, 109 Kb).
Video (MPEG, 37.9 Mb).
An implementation by Thomas Rauscher.
Radial, space-filling visualizations can be useful for depicting information
hierarchies, but they suffer from one major problem. As the hierarchy
grows in size, many items become small, peripheral slices that are
difficult to distinguish. We have developed three visualization/interaction
techniques that provide flexible browsing of the display. The techniques
allow viewers to examine the small items in detail while providing
context within the entire information hierarchy. Additionally, smooth
transitions between views help users maintain orientation within the
complete information space.
1. Angular Detail method
2. Detail Inside method
3. Detail Outside method
4. Comparison between the original sunburst display and the three
techniques shown above.