A space-optimized tree visualization
- Publication Type:
- Conference Proceeding
- Citation:
- Proceedings - IEEE Symposium on Information Visualization, INFO VIS, 2002, 2002-January pp. 85 - 92
- Issue Date:
- 2002-01-01
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2004003498.pdf | 1.6 MB |
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© 2002 IEEE. We describe a new method for the visualization of tree structured relational data. It can be used especially for the display of very large hierarchies in a 2-dimensional space. We discuss the advantages and limitations of current techniques of tree visualization. Our strategy is to optimize the drawing of trees in a geometrical plane and maximize the utilization of display space by allowing more nodes and links to be displayed at a limit screen resolution. We use the concept of enclosure to partition the entire display space into a collection of local regions that are assigned to all nodes in tree T for the display of their sub-trees and themselves. To enable the exploration of large hierarchies, we use a modified semantic zooming technique to view the detail of a particular part of the hierarchy at a time based on user's interest. Layout animation is also provided to preserve the mental map while the user is exploring the hierarchy by changing zoomed views.
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