Graphviz

Graphviz is a graphing toolkit that allows you to render several sorts of directed and undirected graphs like this:

A version of is available for pretty much any variant under the sun.

Pixelglow has a very neat port of Graphviz, complete with a new document-based GUI, export to PDF and many more bitmap formats, full alpha transparency, native font support and anti-aliasing:

The dynamic zoom has to be seen to be believed, and the properties sidebar is a great way to tweak the layout. All in all, a great example of how “old school” tools can be adapted to run under Cocoa.

There is also an amazing implementation called “Instaviz”:AppStore:Instaviz.

Resources:

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