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Cascaded Treemaps: Examining the Visibility and Stability of Structure in Treemaps
 

Summary: Cascaded Treemaps:
Examining the Visibility and Stability of Structure in Treemaps
Hao Lü and James Fogarty
Computer Science & Engineering
DUB Group
University of Washington
{ hlv, jfogarty }@cs.washington.edu
ABSTRACT
Treemaps are an important and commonly-used approach to
hierarchy visualization, but an important limitation of treemaps is
the difficulty of discerning the structure of a hierarchy. This paper
presents cascaded treemaps, a new approach to treemap
presentation that is based in cascaded rectangles instead of the
traditional nested rectangles. Cascading uses less space to present
the same containment relationship, and the space savings enable a
depth effect and natural padding between siblings in complex
hierarchies. In addition, we discuss two general limitations of
existing treemap layout algorithms: disparities between node
weight and relative node size that are introduced by layout
algorithms ignoring the space dedicated to presenting internal

  

Source: Anderson, Richard - Department of Computer Science and Engineering, University of Washington at Seattle

 

Collections: Computer Technologies and Information Sciences