Dunnart Constraint-Based Diagram Editor

What is Dunnart?

Dunnart is a prototype constraint-based diagram editor. It includes standard diagram editing capabilities, as well as advanced features such as constraint-based geometric placement tools (alignment, distribution, separation, non-overlap, and page containment), automatic object-avoiding poly-line connector routing, and continuous network layout.

The concept behind Dunnart is to use constraint-based methods to free users from manually maintaining relationships within their diagrams. These could include geometric relationships, non-overlap, object-avoiding connector routes or graph layout. In Dunnart, the user can define these features of their layout and they will be automatically maintained throughout further editing. The user can override or alter these relationships at any time

Dunnart screenshot

Dunnart is a research prototype. As such, it lacks some of the features and polish of a professional diagram editor. Most of the interesting features of Dunnart are implemented in the Adaptagrams libraries and are described in my publications or my PhD thesis.

Downloads

Version: 0.17, built 15/07/2008.

General information on loading and saving files and description of Dunnart's command line arguments can be seen by running Dunnart with the -h command line argument.

Note: connectors can be created by holding ALT, then clicking on the connection points that appear at the centre of shapes and dragging to another centre connection point.

If Automatic Graph Layout is turned on, then holding the ALT key will suspend the layout. This can be useful to manually to alter the topology of the graph, when Beautification is enabled.

The examples directory contains lots of examples. Dunnart can be run with one of these examples by giving the file as a command line argument, for example ./dunnart examples/graph.svg

Undo and redo commands are broken in the current version and their use may cause Dunnart to crash in some circumstances.

Mac OS X

This build has been tested on both OS X 10.4 and 10.5. It is built for PPC, but will run under Intel via Rosetta.

dunnart-0.17-osx.tar.gz   6.1 MB

Linux

This build requires you to have the following libraries installed:

dunnart-0.17-linux.tar.gz   2.0 MB

Windows

This build includes all required dlls and doesn't require installation. Just run the dunnart.exe file in the unzipped directory. Tested on Windows XP.

In general, the Windows builds are less stable than the Linux or Mac OS X builds since they are built using a cross-compiler, and the developers do not work on Windows machines. Thus, the Windows version is provided as a courtesy but your milage with it may vary! It may or may not work under Windows Vista, and reportedly doesn't work under Windows 2000.

dunnart-0.17-win.tar.gz   7.3 MB