"""Utility functions."""
from .product import ECorrectionType
[docs]
def iter_corrections(corrections=None):
"""Iterate over corrections."""
if corrections is None:
corrections = ECorrectionType
if isinstance(corrections, str) or corrections in ECorrectionType:
corrections = [corrections]
for correction in corrections:
correction = ECorrectionType(correction)
if correction in {
ECorrectionType.TROPOSPHERIC,
ECorrectionType.IONOSPHERIC,
ECorrectionType.DOPPLER,
}:
yield correction, "x"
elif correction in {ECorrectionType.BISTATIC, ECorrectionType.FMRATE}:
yield correction, "y"
elif correction in {ECorrectionType.SUM, ECorrectionType.GEODETIC}:
yield correction, "x"
yield correction, "y"