WriteRecalibratedSourceTableTask¶

class lsst.pipe.tasks.postprocess.WriteRecalibratedSourceTableTask(*, config: Optional[PipelineTaskConfig] = None, log: Optional[Union[logging.Logger, LsstLogAdapter]] = None, initInputs: Optional[Dict[str, Any]] = None, **kwargs)¶

Bases: lsst.pipe.tasks.postprocess.WriteSourceTableTask

Write source table to parquet

Attributes Summary

canMultiprocess

Methods Summary

`addCalibColumns`(catalog, exposure, …)	Add replace columns with calibs evaluated at each centroid
`attachCalibs`(inputRefs, skyMap, exposure[, …])	Apply external calibrations to exposure per configuration
`emptyMetadata`()	Empty (clear) the metadata for this Task and all sub-Tasks.
`getAllSchemaCatalogs`()	Get schema catalogs for all tasks in the hierarchy, combining the results into a single dict.
`getClosestTract`(tracts, skyMap, bbox, wcs)	Find the index of the tract closest to detector from list of tractIds
`getFullMetadata`()	Get metadata for all tasks.
`getFullName`()	Get the task name as a hierarchical name including parent task names.
`getName`()	Get the name of the task.
`getResourceConfig`()	Return resource configuration for this task.
`getSchemaCatalogs`()	Get the schemas generated by this task.
`getTaskDict`()	Get a dictionary of all tasks as a shallow copy.
`makeField`(doc)	Make a `lsst.pex.config.ConfigurableField` for this task.
`makeSubtask`(name, **keyArgs)	Create a subtask as a new instance as the `name` attribute of this task.
`prepareCalibratedExposure`(exposure[, …])	Prepare a calibrated exposure and apply external calibrations if so configured.
`run`(catalog[, ccdVisitId])	Convert `src` catalog to parquet
`runQuantum`(butlerQC, inputRefs, outputRefs)	Method to do butler IO and or transforms to provide in memory objects for tasks run method
`timer`(name, logLevel)	Context manager to log performance data for an arbitrary block of code.

Attributes Documentation

canMultiprocess = True¶

Methods Documentation

addCalibColumns(catalog, exposure, exposureIdInfo, **kwargs)¶

Add replace columns with calibs evaluated at each centroid

Add or replace ‘base_LocalWcs’ `base_LocalPhotoCalib’ columns in a a source catalog, by rerunning the plugins.

Parameters:	catalog : `lsst.afw.table.SourceCatalog` catalog to which calib columns will be added exposure : `lsst.afw.image.exposure.Exposure` Exposure with attached PhotoCalibs and SkyWcs attributes to be reevaluated at local centroids. Pixels are not required. exposureIdInfo : `lsst.obs.base.ExposureIdInfo`
Returns:	newCat: `lsst.afw.table.SourceCatalog` Source Catalog with requested local calib columns

attachCalibs(inputRefs, skyMap, exposure, externalSkyWcsGlobalCatalog=None, externalSkyWcsTractCatalog=None, externalPhotoCalibGlobalCatalog=None, externalPhotoCalibTractCatalog=None, **kwargs)¶

Apply external calibrations to exposure per configuration

When multiple tract-level calibrations overlap, select the one with the center closest to detector.

Parameters:

inputRefs : lsst.pipe.base.InputQuantizedConnection, for dataIds of: tract-level calibs.
skyMap : lsst.skymap.SkyMap
exposure : lsst.afw.image.exposure.Exposure: Input exposure to adjust calibrations.
externalSkyWcsGlobalCatalog : lsst.afw.table.ExposureCatalog, optional: Exposure catalog with external skyWcs to be applied per config
externalSkyWcsTractCatalog : lsst.afw.table.ExposureCatalog, optional: Exposure catalog with external skyWcs to be applied per config
externalPhotoCalibGlobalCatalog : lsst.afw.table.ExposureCatalog, optional: Exposure catalog with external photoCalib to be applied per config
externalPhotoCalibTractCatalog : lsst.afw.table.ExposureCatalog, optional

Returns:

exposure : lsst.afw.image.exposure.Exposure: Exposure with adjusted calibrations.

emptyMetadata() → None¶: Empty (clear) the metadata for this Task and all sub-Tasks.

getAllSchemaCatalogs() → Dict[str, Any]¶

Get schema catalogs for all tasks in the hierarchy, combining the results into a single dict.

Returns:	schemacatalogs : `dict` Keys are butler dataset type, values are a empty catalog (an instance of the appropriate `lsst.afw.table` Catalog type) for all tasks in the hierarchy, from the top-level task down through all subtasks.

Notes

This method may be called on any task in the hierarchy; it will return the same answer, regardless.

The default implementation should always suffice. If your subtask uses schemas the override Task.getSchemaCatalogs, not this method.

getClosestTract(tracts, skyMap, bbox, wcs)¶

Find the index of the tract closest to detector from list of tractIds

Parameters:	tracts: `list` [`int`] Iterable of integer tractIds skyMap : `lsst.skymap.SkyMap` skyMap to lookup tract geometry and wcs bbox : `lsst.geom.Box2I` Detector bbox, center of which will compared to tract centers wcs : `lsst.afw.geom.SkyWcs` Detector Wcs object to map the detector center to SkyCoord
Returns:	index : `int`

getFullMetadata() → lsst.pipe.base._task_metadata.TaskMetadata¶

Get metadata for all tasks.

Returns:	metadata : `TaskMetadata` The keys are the full task name. Values are metadata for the top-level task and all subtasks, sub-subtasks, etc.

Notes

The returned metadata includes timing information (if @timer.timeMethod is used) and any metadata set by the task. The name of each item consists of the full task name with . replaced by :, followed by . and the name of the item, e.g.:

topLevelTaskName:subtaskName:subsubtaskName.itemName

using : in the full task name disambiguates the rare situation that a task has a subtask and a metadata item with the same name.

getFullName() → str¶

Get the task name as a hierarchical name including parent task names.

Returns:	fullName : `str` The full name consists of the name of the parent task and each subtask separated by periods. For example: The full name of top-level task “top” is simply “top”. The full name of subtask “sub” of top-level task “top” is “top.sub”. The full name of subtask “sub2” of subtask “sub” of top-level task “top” is “top.sub.sub2”.

getName() → str¶

Get the name of the task.

Returns:	taskName : `str` Name of the task.

See also

Task.getAllSchemaCatalogs

Notes

Warning

Subclasses that use schemas must override this method. The default implementation returns an empty dict.

This method may be called at any time after the Task is constructed, which means that all task schemas should be computed at construction time, not when data is actually processed. This reflects the philosophy that the schema should not depend on the data.

Returning catalogs rather than just schemas allows us to save e.g. slots for SourceCatalog as well.

getTaskDict() → Dict[str, weakref]¶

Get a dictionary of all tasks as a shallow copy.

Returns:	taskDict : `dict` Dictionary containing full task name: task object for the top-level task and all subtasks, sub-subtasks, etc.

classmethod makeField(doc: str) → lsst.pex.config.configurableField.ConfigurableField¶

Make a lsst.pex.config.ConfigurableField for this task.

Parameters:	doc : `str` Help text for the field.
Returns:	configurableField : `lsst.pex.config.ConfigurableField` A `ConfigurableField` for this task.

Examples

Provides a convenient way to specify this task is a subtask of another task.

Here is an example of use:

class OtherTaskConfig(lsst.pex.config.Config):
    aSubtask = ATaskClass.makeField("brief description of task")

makeSubtask(name: str, **keyArgs) → None¶

Create a subtask as a new instance as the name attribute of this task.

Parameters:	name : `str` Brief name of the subtask. keyArgs Extra keyword arguments used to construct the task. The following arguments are automatically provided and cannot be overridden: “config”. “parentTask”.

Notes

The subtask must be defined by Task.config.name, an instance of ConfigurableField or RegistryField.

prepareCalibratedExposure(exposure, externalSkyWcsCatalog=None, externalPhotoCalibCatalog=None)¶

Prepare a calibrated exposure and apply external calibrations if so configured.

Parameters:

exposure : lsst.afw.image.exposure.Exposure: Input exposure to adjust calibrations.
externalSkyWcsCatalog : lsst.afw.table.ExposureCatalog, optional: Exposure catalog with external skyWcs to be applied if config.doApplyExternalSkyWcs=True. Catalog uses the detector id for the catalog id, sorted on id for fast lookup.
externalPhotoCalibCatalog : lsst.afw.table.ExposureCatalog, optional: Exposure catalog with external photoCalib to be applied if config.doApplyExternalPhotoCalib=True. Catalog uses the detector id for the catalog id, sorted on id for fast lookup.

Returns:

exposure : lsst.afw.image.exposure.Exposure: Exposure with adjusted calibrations.

run(catalog, ccdVisitId=None, **kwargs)¶

Convert src catalog to parquet

Parameters:	catalog: `afwTable.SourceCatalog` catalog to be converted ccdVisitId: `int` ccdVisitId to be added as a column
Returns:	result : `lsst.pipe.base.Struct` `table` `ParquetTable` version of the input catalog

runQuantum(butlerQC, inputRefs, outputRefs)¶

Method to do butler IO and or transforms to provide in memory objects for tasks run method

Parameters:

butlerQC : ButlerQuantumContext: A butler which is specialized to operate in the context of a lsst.daf.butler.Quantum.
inputRefs : InputQuantizedConnection: Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined input/prerequisite connections.
outputRefs : OutputQuantizedConnection: Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined output connections.

timer(name: str, logLevel: int = 10) → Iterator[None]¶

Context manager to log performance data for an arbitrary block of code.

Parameters:	name : `str` Name of code being timed; data will be logged using item name: `Start` and `End`. logLevel A `logging` level constant.

Navigation

WriteRecalibratedSourceTableTask¶