VisitSystem#

class lsst.obs.base.VisitSystem(value, names=<not given>, *values, module=None, qualname=None, type=None, start=1, boundary=None)#

Bases: Enum

Enumeration used to label different visit systems.

Attributes Summary

`BY_GROUP_METADATA`	Visit membership is defined by the value of the group dimension or, for older dimension universes, exposure.group_id.
`BY_SEQ_START_END`	Visit membership is defined by the values of the `exposure.day_obs`, `exposure.seq_start`, and `exposure.seq_end` values.
`ONE_TO_ONE`	Each exposure is assigned to its own visit.

Methods Summary

`all`()	Return a `frozenset` containing all members.
`from_name`(external_name)	Construct the enumeration from given name.
`from_names`(names)	Return a `frozenset` of all the visit systems matching the supplied names.

Attributes Documentation

BY_GROUP_METADATA = 1#: Visit membership is defined by the value of the group dimension or, for older dimension universes, exposure.group_id.

BY_SEQ_START_END = 2#: Visit membership is defined by the values of the exposure.day_obs, exposure.seq_start, and exposure.seq_end values.

ONE_TO_ONE = 0#: Each exposure is assigned to its own visit.

Methods Documentation

classmethod all() → frozenset[VisitSystem]#: Return a frozenset containing all members.

classmethod from_name(external_name: str) → VisitSystem#: Construct the enumeration from given name.

classmethod from_names(names: Iterable[str] | None) → frozenset[VisitSystem]#

Return a frozenset of all the visit systems matching the supplied names.

Parameters#

namesiterable of str, or None: Names of visit systems. Case insensitive. If None or empty, all the visit systems are returned.

Returns#

systemsfrozenset of VisitSystem: The matching visit systems.