Spherogram is a Python module for dealing with the kind of planar diagrams that arise in 3-dimensional topology, such as link and Heegaard diagrams. It a component of the larger SnapPy project.
Gilles was misspelt as Giles.
Planarity has moved from Google Code to GitHub.
Use https for snappy.computop.org links.
Update GPL 2.0 link to https and new location.
Gilles was misspelt as Giles. Planarity has moved from Google Code to GitHub. Use https for snappy.computop.org links. Update GPL 2.0 link to https and new location.