LSST Applications
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LSST Data Management Base Package
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Public Member Functions | |
def | __init__ (self, Optional[DefineVisitsConfig] config=None, *Butler butler, **Any kwargs) |
def | run (self, Iterable[DataId] dataIds, *Optional[Pool] pool=None, int processes=1, Optional[str] collections=None) |
def | emptyMetadata (self) |
def | getSchemaCatalogs (self) |
def | getAllSchemaCatalogs (self) |
def | getFullMetadata (self) |
def | getFullName (self) |
def | getName (self) |
def | getTaskDict (self) |
def | makeSubtask (self, name, **keyArgs) |
def | timer (self, name, logLevel=Log.DEBUG) |
def | makeField (cls, doc) |
def | __reduce__ (self) |
Public Attributes | |
butler | |
universe | |
metadata | |
log | |
config | |
Static Public Attributes | |
ConfigClass = DefineVisitsConfig | |
Driver Task for defining visits (and their spatial regions) in Gen3 Butler repositories. Parameters ---------- config : `DefineVisitsConfig` Configuration for the task. butler : `~lsst.daf.butler.Butler` Writeable butler instance. Will be used to read `raw.wcs` and `camera` datasets and insert/sync dimension data. **kwargs Additional keyword arguments are forwarded to the `lsst.pipe.base.Task` constructor. Notes ----- Each instance of `DefineVisitsTask` reads from / writes to the same Butler. Each invocation of `DefineVisitsTask.run` processes an independent group of exposures into one or more new vists, all belonging to the same visit system and instrument. The actual work of grouping exposures and computing regions is delegated to pluggable subtasks (`GroupExposuresTask` and `ComputeVisitRegionsTask`), respectively. The defaults are to create one visit for every exposure, and to use exactly one (arbitrary) detector-level raw dataset's WCS along with camera geometry to compute regions for all detectors. Other implementations can be created and configured for instruments for which these choices are unsuitable (e.g. because visits and exposures are not one-to-one, or because ``raw.wcs`` datasets for different detectors may not be consistent with camera geomery). It is not necessary in general to ingest all raws for an exposure before defining a visit that includes the exposure; this depends entirely on the `ComputeVisitRegionTask` subclass used. For the default configuration, a single raw for each exposure is sufficient. Defining the same visit the same way multiple times (e.g. via multiple invocations of this task on the same exposures, with the same configuration) is safe, but it may be inefficient, as most of the work must be done before new visits can be compared to existing visits.
Definition at line 281 of file defineVisits.py.
def lsst.obs.base.defineVisits.DefineVisitsTask.__init__ | ( | self, | |
Optional[DefineVisitsConfig] | config = None , |
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*Butler | butler, | ||
**Any | kwargs | ||
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Definition at line 323 of file defineVisits.py.
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inherited |
Pickler.
Reimplemented in lsst.pipe.drivers.multiBandDriver.MultiBandDriverTask, and lsst.pipe.drivers.coaddDriver.CoaddDriverTask.
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inherited |
Empty (clear) the metadata for this Task and all sub-Tasks.
Definition at line 166 of file task.py.
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inherited |
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.
Definition at line 204 of file task.py.
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inherited |
Get metadata for all tasks. Returns ------- metadata : `lsst.daf.base.PropertySet` The `~lsst.daf.base.PropertySet` 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.
Definition at line 229 of file task.py.
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inherited |
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".
Definition at line 256 of file task.py.
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inherited |
Get the name of the task. Returns ------- taskName : `str` Name of the task. See also -------- getFullName
Definition at line 274 of file task.py.
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inherited |
Get the schemas generated by this task. Returns ------- schemaCatalogs : `dict` Keys are butler dataset type, values are an empty catalog (an instance of the appropriate `lsst.afw.table` Catalog type) for this task. 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. See also -------- Task.getAllSchemaCatalogs
Definition at line 172 of file task.py.
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inherited |
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.
Definition at line 288 of file task.py.
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inherited |
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: .. code-block:: python class OtherTaskConfig(lsst.pex.config.Config): aSubtask = ATaskClass.makeField("brief description of task")
Definition at line 359 of file task.py.
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inherited |
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 `~lsst.pex.config.ConfigurableField` or `~lsst.pex.config.RegistryField`.
Definition at line 299 of file task.py.
def lsst.obs.base.defineVisits.DefineVisitsTask.run | ( | self, | |
Iterable[DataId] | dataIds, | ||
*Optional[Pool] | pool = None , |
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int | processes = 1 , |
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Optional[str] | collections = None |
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Add visit definitions to the registry for the given exposures. Parameters ---------- dataIds : `Iterable` [ `dict` or `DataCoordinate` ] Exposure-level data IDs. These must all correspond to the same instrument, and are expected to be on-sky science exposures. pool : `multiprocessing.Pool`, optional If not `None`, a process pool with which to parallelize some operations. processes : `int`, optional The number of processes to use. Ignored if ``pool`` is not `None`. collections : Any, optional Collections to be searched for raws and camera geometry, overriding ``self.butler.collections``. Can be any of the types supported by the ``collections`` argument to butler construction. Raises ------ lsst.daf.butler.registry.ConflictingDefinitionError Raised if a visit ID conflict is detected and the existing visit differs from the new one.
Definition at line 469 of file defineVisits.py.
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inherited |
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 `lsst.log` level constant. Examples -------- Creating a timer context: .. code-block:: python with self.timer("someCodeToTime"): pass # code to time See also -------- timer.logInfo
Definition at line 327 of file task.py.
lsst.obs.base.defineVisits.DefineVisitsTask.butler |
Definition at line 326 of file defineVisits.py.
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static |
Definition at line 335 of file defineVisits.py.
lsst.obs.base.defineVisits.DefineVisitsTask.universe |
Definition at line 327 of file defineVisits.py.