I'd like to have a program where I can model diagrams like in Microsoft Visio and write math formulas in Latex on it. It would be nice to see the rendered formulas (which can be edited in some way, i.e. double clicking) and be able to move around everything by dragging and dropping.
(Rendering just the boxes from Visio and writing Latex on it is not really a user-friendly option for me)
Is there anything like this for LaTeX?