helixmc.util.coords2dr

helixmc.util.coords2dr(coord)

Convert xyz coordinates of axis curve to delta-r vectors.

Parameters:

coord : ndarray, shape (N,3)

The axis curve xyz coordinates in unit of Å (r vectors).

Returns:

dr : ndarray, shape (N,3)

Delta-r vectors (dr[i] = r[i+1] - r[i]).

See also

dr2coords

Convert delta-r vectors to coordinates.