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Hierarchical Structure

Explicit: use partitions of a single dimension to define layer of tree

Implicit: use clustering algorithms which combine influences of dimensions

Goal is to find placement algorithms which best convey structure

May use additional graphics (e.g., edges) to convey relationships

Node-link graphs vary by

Filled-region graphs convey structure with position


  
Figure: Star glyphs of Iris data set using recursive hierarchical placement based on the DySect [2] data partitioning algorithm and the Tree-map [24] recursive space partioning technique.
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\centerline{\psfig{figure=irishier2.ps,width=3.25in}}
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next up previous
Next: Graph/Network Structure Up: Structure-Driven Glyph Placement Previous: Ordered Structure
Matthew Ward
1999-02-08