detector_to_fourier#
- pyxem.utils.vectors.detector_to_fourier(k_xy, wavelength, camera_length)[source]#
Maps two-dimensional Cartesian coordinates in the detector plane to three-dimensional coordinates in reciprocal space, with origo in [000].
The detector uses a left-handed coordinate system, while the reciprocal space uses a right-handed coordinate system.
- Parameters:
k_xy (numpy.ndarray) – Cartesian coordinates in detector plane, in reciprocal Ångström.
wavelength (float) – Electron wavelength in Ångström.
camera_length (float) – Camera length in metres.
- Returns:
k – Array of Cartesian coordinates in reciprocal space relative to [000].
- Return type: