In Tao, we have been trying to do it 1) for coordinates and graphical shapes 2) so that it works both ways, i.e. from code to visualizer, but also so that man

In Tao, we have been trying to do it 1) for coordinates and graphical shapes 2) so that it works both ways, i.e. from code to visualizer, but also so that manipulating makes it possible to change the code. See http://www.youtube.com/watch?v=LpPwjB46E5I http://www.youtube.com/watch?v=LpPwjB46E5I for an example of how this works in practice (look around 1:20 in the video)