constructDataIds

lsst.validate.drp.util.constructDataIds(filters, visits, ccds, ccdKeyName='ccd')

Returns a list of dataIds consisting of every combination of visit & ccd for each filter.

Parameters:

filters : str or list

If str, will be interpreted as one filter to be applied to all visits.

visits : list of int

ccds : list of int

ccdKeyName : str, optional

Name to distinguish different parts of a focal plane. Generally ‘ccd’, but might be ‘ccdnum’, or ‘amp’, or ‘ccdamp’. Refer to your obs_*/policy/*Mapper.paf.

Returns:

list

dataIDs suitable to be used with the LSST Butler.

Examples

>>> dataIds = constructDataIds('r', [100, 200], [10, 11, 12])
>>> for dataId in dataIds: print(dataId)
{'filter': 'r', 'visit': 100, 'ccd': 10}
{'filter': 'r', 'visit': 100, 'ccd': 11}
{'filter': 'r', 'visit': 100, 'ccd': 12}
{'filter': 'r', 'visit': 200, 'ccd': 10}
{'filter': 'r', 'visit': 200, 'ccd': 11}
{'filter': 'r', 'visit': 200, 'ccd': 12}