Treemaps

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Articles

• My First Treemap Aritcle

NB: This project is part of our work on HCI, to implement OrangeTopia.

Traditional representations of information trees are very space consuming. There is a large amount of redundant information and padding to convey the tree structure.

e.g., a directory tree:

 2       ./CVS/Root
 2       ./CVS/Repository
 2       ./CVS/Entries
 2       ./CVS/Entries.Log
 10      ./CVS
 2       ./Treemap/CVS/Root
 2       ./Treemap/CVS/Repository
 2       ./Treemap/CVS/Entries
 2       ./Treemap/CVS/Entries.Log
 .
 .
 .
 (goes on for 80 lines)

Treemaps are representations of trees (or hiarchies) that use space-filling nesting to convey the tree structure.

DOWNLOAD

• Treemap-0.04.tar.gz (2006-12-02; Added contributed modules Treemap::Input::DBI, and Treemap::Output::TkData?)
• Treemap-0.03.tar.gz (2006-02-04; SWF/Flash support added)
• Treemap-0.02.tar.gz (2004-06-18)

Sample Images from this library

• Strip Algorithm
• Squarify Algorithm
• Nightly auto-generated Treemap Examples (may occasionally contain broken images)

Documentation

• Flowcharts created using Dia[1] (Flowchart/UML software)

CVS[2] Access

• Click here for CVS Web access (new window)
• CVS repository: currently private, soon to be public

Potential Applications

• Disk utilization
• Network element monitoring
• Visualization of demographic information
  • by postal/zip codes
  • by source IP address
• Stock reports (size = volume changing hands, colour = gain/loss)
• Global system monitoring

Submitting Modules to CPAN

• Hmm... something about PAUSE

To-do List

• TreemapToDo

Reference Material

• The history of Treemaps

last edited December 4, 2006 — ( info ) ( diff )