FlowCanvas is an interactive Gtkmm/Gnomecanvasmm widget for “boxes and lines” style
environments (e.g. modular synths or interactive finite state automata diagrams).
It is used by Ingen, Patchage, and Machina
Download
The latest version of FlowCanvas is 0.6.0, released on December 8, 2009.
Documentation
HTML Documentation can be built from the source distribution using ./waf configure –build-docs, or you can Browse documentation online
Bugs
Please file any bugs you find here