[Haskell-cafe] Visual Functional Languages

Hi I’m searching for Visual Functional Languages, i.e. languages in which the programmer does diagrams instead of writing textual code. The only language I have found until now is VFPE of Joel Kelso's PhD thesis http://www.csse.uwa.edu.au/~joel/vfpe/ Does anyone know other languages or at least projects on this subject? Thankfully for answers José Miguel Vilaça