pixel_angles#

anri.index.pixel_angles(slow, fast, omega, geom)[source]#

Compute (2theta, eta, omega) of pixel centres, seen from the lab origin (no parallax).

Parameters:

  • slow (Array) – [N] pixel coordinates

  • fast (Array) – [N] pixel coordinates

  • omega (Array) – [N] omega of each pixel’s frame (degrees)

  • geom (dict) – Geometry dict with “det_origin_lab”, “s_step_lab”, “f_step_lab” and “k_in_lab”, e.g. from anri.io.geom_from_pars()

Returns:

jax.Array – [N, 3] (2theta, eta, omega) in degrees