This project extends a previous work on node link tree visualisation and interaction by providing visual clues on hidden structures. We adopt DOITree from Prefuse package (https://github.com/prefuse/Prefuse), a multi-focal tree layout algorithm, for exploring large hierarchical structures.
Related publications:
https://www.sciencedirect.com/science/article/pii/S1045926X1630009X
https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6902871