tomodrgn.so3_grid

Implementation of Yershova et al. “Generating uniform incremental grids on SO(3) using the Hopf fribration” See source code implementation: https://lavalle.pl/software/so3/so3.html

Functions

base_SO3_grid	Return the base resolution SO(3) grid
get_base_ind	Return the corresponding S2 and S1 grid index for an index on the base SO3 grid
get_neighbor	Return the 8 nearest neighbors on SO3 at the next resolution level
get_s1_neighbor	Return the 2 nearest neighbors on S1 at the next resolution level
get_s2_neighbor	Return the 4 nearest neighbors on S2 at the next resolution level
grid_SO3	Sample points on SO(3) at the specified resolution.
grid_s1	Sample S1 at a given resolution (uses uniform sampling).
grid_s2	Sample S2 at a given resolution (uses HEALPix sampling).
hopf_to_quat	Transform Hopf coordinates to quaternions