PerTractInput¶
- class lsst.drp.tasks.update_visit_summary.PerTractInput(catalogs_by_tract: list[tuple[lsst.skymap.tractInfo.TractInfo, lsst.afw.table.ExposureCatalog]])¶
Bases:
PossiblyMultipleInput
Wrapper class for input
ExposureCatalog
datasets that are per-tract.This selects the best tract via the minimum average distance (on the sky) from the detector’s corners to the tract center.
Methods Summary
best_for_detector
(detector_id[, center, bbox])Return the exposure record for this detector that is the best match for this detector.
load
(butler, sky_map, refs)Load and wrap input catalogs.
Methods Documentation
- best_for_detector(detector_id: int, center: SpherePoint | None = None, bbox: Box2I | None = None) tuple[int, lsst.afw.table.ExposureRecord | None] ¶
Return the exposure record for this detector that is the best match for this detector.
- Parameters:
- detector_id
int
Detector ID; used to find the right row in the catalog or catalogs.
- center
lsst.geom.SpherePoint
orNone
Center of the detector in sky coordinates. If not provided, one will be computed via
compute_center_for_detector_record
.- bbox
lsst.geom.Box2I
, optional Bounding box for the detector in its own pixel coordinates.
- detector_id
- Returns:
- tract_id
int
ID of the tract that supplied this record, or
-1
ifrecord
isNone
or if the input was not per-tract.- record
lsst.afw.table.ExposureRecord
orNone
Best record for this detector, or
None
if there either were no records for this detector or no WCS available to compute a center.
- tract_id
- classmethod load(butler: QuantumContext | Butler, sky_map: BaseSkyMap, refs: Iterable[DatasetRef]) PerTractInput ¶
Load and wrap input catalogs.
- Parameters:
- butler
lsst.pipe.base.QuantumContext
Butler proxy used in
runQuantum
.- sky_map
lsst.skymap.BaseSkyMap
Definition of tracts and patches.
- refs
Iterable
[lsst.daf.butler.DatasetRef
] References to the catalog datasets to load.
- butler
- Returns:
- wrapper
PerTractInput
Wrapper object for the loaded catalogs.
- wrapper