Originally designed for use with linguistic diagrams, we envisage widespread application within other areas involving the presentation and interpretation of highly structured information.
Some demos are available.
There's also reference documentation and a tutorial . The Thistle Home Page contains the documentation in alternative formats and further information for users and developers. Note that the documentation may sometimes be a little in advance of the latest release. The InterArbora service exploits Thistle technology to deliver trees to your desktop. Contact Jo Calder , if you are interested in running the software on some other platform.