DUGG mapping

[minhthin1028]

Request from Fangli:

Given an edge set from a UDG graph on square lattice (but positions are not provided), generate corresponding positions on square lattice, i.e. spring layout but on square lattice?

[GiggleLiu]

Hi, It does not look like a feature suited for this package. Can you explain why do we need this feature?

[GiggleLiu]

We can visualize the GridGraph instance directly now:
Check this notebooks: https://refactored-spork-2b31d0c0.pages.github.io/notebooks/tutorial.html