Hello, I uploaded some youtube videos of a new visual editor for the Dataflow library. There are three examples, each using a different underlying framework (the visual editor code is generic): visually editing a Dataflow.Signals network (data flows instantly): * http://www.youtube.com/watch?v=7a4HJ4zVPXc visually editing a Dataflow.Managed network (data flows on request): * http://www.youtube.com/watch?v=KwrnSjhJyf4 visually editing a BGL graph (this simple example lets you construct a directed graph and query the number of strongly connected components): * http://www.youtube.com/watch?v=gVLetAAnPrc The latter two examples use proof-of-concept implementations of alternate frameworks built on top of the generic framework that is part of the Dataflow library: Dataflow.Managed is unlike Dataflow.Signals in that doesn't couple data transfer with component invocation. In other words, if producer A is connected to consumer B, when A changes its value B will not be notified immediately. Instead, after any number of values in the network has changed, the network as a whole can be told to update (the network will then notify all components whose inputs have been modified, in the order of a topological sort of the components). Alternatively, components can be invoked individually, which gives them a chance to check their inputs / modify their outputs. The BGL support layer for the Dataflow library is an example of how something that is not strictly a dataflow thing (e.g., a graph) can still satisfy Dataflow concepts (there are Components (vertices) that can be connected), and be used with the framework (e.g., you get a GUI editor for free). If you're interested in playing with this: The new GUI uses GLV (http://mat.ucsb.edu/glv/) which is included with the dataflow library in the sandbox and integrated in the bjam build of the examples. As long as you have glut/freeglut available, it should build using gcc/darwin, MSVC8+, gcc/minGW, and if you are better than me at knowing which X libraries to link with and know how to manipulate a Jamfile, gcc/linux (any GCC version 4.x should work). If you run into any problems, please let me know. The latest code is currently available from the sandbox only, instructions/docs at: http://www.dancinghacker.com/code/dataflow/ Any feedback would be appreciated. Kind regards, Stjepan