After installing pyhetdex you can create a dither file for an IFU on command line via
dither_file [-h] [--shotdir SHOTDIR] outfile ifuid fplane ditherpos basename modelbase
For the dithers the dither number and IFU id are appended to the basename and modelbase, e.g. for IFU 067 “D1_067”, “D2_067” and “D3_067” are appended. For more flexibility you can use the Python class directly. Normalisation and seeing values are taken from the image quality and illumination servers, based on the guide probe information in the shot directory. Currently the servers just return fixed values, they still need to be implemented.
You can try running this using data in the test directory
dither_file dither_067.txt 067 tests/data/fplane.txt tests/data/dither_positions.txt test test