TopologicalSpace¶
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class
lsst.daf.butler.
TopologicalSpace
¶ Bases:
enum.Enum
Enumeration of the different categories of continuous-variable relationships supported by the dimensions system.
Most dimension relationships are discrete, in that they are regular foreign key relationships between tables. Those connected to a
TopologicalSpace
are not - a row in a table instead occupies some region in a continuous-variable space, and topological operators like “overlaps” between regions in that space define the relationships between rows.Attributes Summary
SPATIAL
The (spherical) sky, using lsst.sphgeom.Region
objects to represent those regions in memory.TEMPORAL
Time, using Timespan
instances (with TAI endpoints) to represent intervals in memory.Attributes Documentation
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SPATIAL
= 1¶ The (spherical) sky, using
lsst.sphgeom.Region
objects to represent those regions in memory.
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