ess.estia.load.load_detector_rotation#

ess.estia.load.load_detector_rotation(transform)[source]#

Compute the detector reference angle from its NeXus transformations.

Measure the transformed local +z direction from laboratory +z towards +x in the x-z plane. The reduction assumes this direction points from the sample to the detector centre, where the central reflected beam is aligned. Use the same transform as the detector pixel positions.