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. For some basic examples of using Spherogram to build links, see here. You can browse the source code.
with contributions from
- Robert Lipshitz
- Jennet Dickinson
- Malik Obeidin
Also includes third-party libraries:
Copyright 2008-present by Marc Culler, Nathan Dunfield, and others.
This code is released under the GNU General Public License, version 2 or (at your option) any later version as published by the Free Software Foundation.