_r_to_desc#

mbgdml._gdml.desc._r_to_desc(r, pdist)[source]#

Generate descriptor for a set of atom positions in Cartesian coordinates.

Parameters:
  • r (numpy.ndarray) – Array of size \(3N\) containing the Cartesian coordinates of each atom.

  • pdist (numpy.ndarray) – Array of size \(N \times N\) containing the Euclidean distance (L2-norm) for each pair of atoms.

Returns:

Descriptor representation as 1D array of size \(N(N-1)/2\).

Return type:

numpy.ndarray