ProD: Drawing linguistic trees and dendrograms

ProD (=Prototype Dendrograms) is tool for visualizing linguistic tree structures, e.g. constituent structures, dependency structures, language family trees, etc. In addition to the basic drawing, the library allows for interactive searching and highlighting of the structure, as well as collapsing a subtree by clicking on its parent. Despite the name, ProD will layout the structures either as dendrograms (nodes horizontally aligned by their distance from the leaves) or as node-link (tree) diagrams (nodes horizontally aligned by their distance from the root).

Here are a few sample uses:

• Variations and searching
• Trees from a labelled bracketting input
• Extensive real dependency structure data

ProD is still very much under development, with only in-line documentation. Any feedback is appreciated.

Compatability

ProD has been tested with Chrome, Firefox, Opera and Safari on OS X 10.6. There are occasional issues with redrawing the same tree with a different layout in all but Firefox. See refresh() in Variations and searching for a workaround.

• ProD does not function at all in IE (at least not version 9 or lower).

Download

ProD is freely available under the new BSD license (see the source files). Download ProD.

If you use ProD, please cite:

Chris Culy, Corina Dima, and Emanuel Dima. 2012. Through the Looking Glass: Two Approaches to Visualizing Linguistic Syntax Trees. presented at IV2012, July 11-13, 2012, Montpelier, France.

Version history

• Version 0.3.1
  • Added the ability to handle Penn style brackettings to Trees from a labelled bracketting input
• Version 0.3
• Added Webkit (Chrome, Safari) and Opera compatibility
• Version 0.2 First public release

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1 August 2012