A user-guided force layout and the algorithmic check would be fine aesthetically if it were implemented well. For one thing, it would bring more attention to th

A user-guided force layout and the algorithmic check would be fine aesthetically if it were implemented well. For one thing, it would bring more attention to the mathematical abstraction by removing an unnecessary degree of freedom. Seems like the sort of thing that some clever hacker could put together in a d3 fiddle.