XY

class lsst.images.XY(x: T, y: T)

Bases: NamedTuple, Generic

A pair of per-dimension objects, ordered (x, y).

Notes

XY is used for points and other 2-d pairs when the most natural ordering is (x, y). Because it is a tuple, however, arithmetic operations behave as they would on a collections.abc.Sequence, not a mathematical vector (e.g. adding concatenates).

See Also

YX

Attributes Summary

x	The x / column object.
y	The y / row object.
yx	A tuple of the same objects in the opposite order.

Methods Summary

count(value, /)	Return number of occurrences of value.
index(value[, start, stop])	Return first index of value.
map(func)	Apply a function to both objects.

Attributes Documentation

x: T

The x / column object.

y: T

The y / row object.

yx

A tuple of the same objects in the opposite order.

Methods Documentation

count(value, /)

Return number of occurrences of value.

index(value, start=0, stop=9223372036854775807, /)

Return first index of value.

Raises ValueError if the value is not present.

map(func: Callable[[T], U]) → XY

Apply a function to both objects.