loadCamera¶
-
lsst.obs.base.
loadCamera
(butler: lsst.daf.butler._butler.Butler, dataId: Union[lsst.daf.butler.core.dimensions._coordinate.DataCoordinate, Mapping[str, Any]], *, collections: Optional[Any] = None) → Tuple[lsst.afw.cameraGeom.camera.camera.Camera, bool]¶ Attempt to load versioned camera geometry from a butler, but fall back to obtaining a nominal camera from the
Instrument
class if that fails.Parameters: - butler :
lsst.daf.butler.Butler
Butler instance to attempt to query for and load a
camera
dataset from.- dataId :
dict
orDataCoordinate
Data ID that identifies at least the
instrument
andexposure
dimensions.- collections : Any, optional
Collections to be searched, overriding
self.butler.collections
. Can be any of the types supported by thecollections
argument to butler construction.
Returns: - camera :
lsst.afw.cameraGeom.Camera
Camera object.
- versioned :
bool
If
True
, the camera was obtained from the butler and should represent a versioned camera from a calibration repository. IfFalse
, no camera datasets were found, and the returned camera was produced by instantiating the appropriateInstrument
class and callingInstrument.getCamera
.
- butler :