Marc Culler and I pleased to announce version 2.0 of SnapPy, a program for studying the topology and geometry of 3-manifolds. Many of the new features are graphical in nature, so we made a new tutorial video to show them off. Highlights include

- A manifold browser window for easily examining a particular manifold.
- Many improvements to the link editor, including
- A smoothed view mode with image export to EPS/PDF/SVG/TikZ.
- Producing a fully editable link from combinatorial data like a DT code.

- Splitting manifolds along surfaces of non-negative euler characteristic.
- Generalizing the ptolemy obstruction class to allow computation of PGL(3,
**C**)-representations and improving usability of the ptolemy module.
- CensusKnots now includes knot exteriors with 8 tetrahedra.

As always, you can get the new version here.

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Thanks Nathan! Is there any chance a future release of SnapPy could include Orb? (i.e. could handle graphs and not just links?)

Comment by Scott Taylor — October 9, 2013 @ 12:29 pm |

Marc Culler and I were talking about the possibility of including Orb recently. It seems like it would be straightforward but probably a fair amount work. So hopefully eventually, but probably not in the next release.

Comment by Nathan Dunfield — October 9, 2013 @ 1:09 pm |