Introduction

pyddg is a python library for geometry, discrete differential geometry, and its visualization in Blender.

It provides

• geometry: projective geometry and subgeometries (Klein Erlangen program):

  • Projective subspaces, quadrics, spheres

  • Cayley-Klein geometries and different models: Euclidean, elliptic, spherical, hyperbolic, Möbius, …

• visualization:

  • Interface for visualization and animation in Blender

  • Visualization in jupyter notebooks using k3d

• datastructures for discrete surfaces:

  • Indexed face set

  • Half-edge

  • Discrete nets

• optimize:

  • Energy optimization on discrete surfaces