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Project description

Treemap is a space-constrained visualization of hierarchical structures. It is very effective in showing attributes of leaf nodes using size and color coding. Treemap enables users to compare nodes and sub-trees even at varying depth in the tree, and help them spot patterns and exceptions.
Treemap was first designed by Ben Shneiderman during the 1990s. For more information, read the historical summary of treemaps, their growing set of applications, and the many other implementations. Treemaps are a continuing topic of research and application at the HCIL.

News and Events

Treemap 4.1.1 (February 17, 2004) is now available. See below for download information.
See the   online documentation   and   history of changes

On May 31, 2001, the Treemap Implementations and Applications workshop was held in conjunction with the HCIL 18th Annual Symposium and Open House.


Catherine Plaisant
Ben Shneiderman
Gouthami Chintalapani, Graduate Student (Systems Engineering)
Aleks Aris, Graduate Student (Computer Science)
with the participation of Ben Bederson, Jean Daniel Fekete and Susan Grodsky.

Also, over the years, many other students have participated in some way or another in the development of various HCIL Treemap versions: Brian Johnson, the original implementer, but also David Turo, Ketan Babaria, Steve Betten, Jim Blowitski, Raghuveera Chalasani, Evren Sirin, Fusun Yaman, Marko Teittinen, Toshiyuki Asahi, Ani Jain, Niem Dang, Nilani Aluthgedara (if we forgot your name... let me know)


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Direct your questions to (BUT REMEMBER THAT THIS A VERY OLD HCIL PROJECT i.e. we do not have the resources to update the code of the original treemap application)
©2003, HCIL, University of Maryland
Last updated  August 05, 2003

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