22 from lsst.daf.butler
import Butler
25 from lsst.obs.base.utils
import getInstrument
29 skymap_id='discrete', old_skymap_id=None):
30 """Implements the command line interface `butler make-discrete-skymap` subcommand,
31 should only be called by command line tools and unit test code that tests
34 Constructs a skymap from calibrated exposure in the butler repository
39 URI to the location to read the repo.
40 config_file : `str` or `None`
41 Path to a config file that contains overrides to the skymap config.
42 collections : `list` [`str`]
43 An expression specifying the collections to be searched (in order) when
44 reading datasets, and optionally dataset type restrictions on them.
45 At least one collection must be specified. This is the collection
46 with the calibrated exposures.
48 The name or fully-qualified class name of an instrument.
49 skymap_id : `str`, optional
50 The identifier of the skymap to save. Default is 'discrete'.
51 old_skymap_id : `str`, optional
52 The identifer of the skymap to append to. Must differ from
53 ``skymap_id``. Ignored unless ``config.doAppend=True``.
55 butler = Butler(repo, collections=collections, writeable=
True)
56 instr = getInstrument(instrument, butler.registry)
58 instr.applyConfigOverrides(MakeDiscreteSkyMapTask._DefaultName, config)
60 if config_file
is not None:
61 config.load(config_file)
66 if old_skymap_id
is None:
67 raise ValueError(
"old_skymap_id must be provided if config.doAppend is True.")
68 dataId = {
'skymap': old_skymap_id}
70 oldSkyMap = butler.get(BaseSkyMap.SKYMAP_DATASET_TYPE_NAME, collections=collections,
72 except LookupError
as e:
73 msg = (f
"Could not find seed skymap with dataId {dataId} "
74 f
"in collections {collections} but doAppend is {config.doAppend}. Aborting...")
75 raise LookupError(msg, *e.args[1:])
77 datasets = butler.registry.queryDatasets(
'calexp', collections=collections)
78 wcs_bbox_tuple_list = [(butler.getDirect(ref.makeComponentRef(
"wcs")),
79 butler.getDirect(ref.makeComponentRef(
"bbox")))
82 result = task.run(wcs_bbox_tuple_list, oldSkyMap)
83 result.skyMap.register(skymap_id, butler)
Make a DiscreteSkyMap in a repository, using the bounding box of a set of calexps.
def makeDiscreteSkyMap(repo, config_file, collections, instrument, skymap_id='discrete', old_skymap_id=None)