lsst.geom._SpherePoint.SpherePoint Class Reference

Public Member Functions
	__iter__ (self)
	__repr__ (self)

Static Public Member Functions
	toUnitXYZ (*, longitude=None, latitude=None, ra=None, dec=None, units)

Detailed Description

Definition at line 38 of file _SpherePoint.py.

Member Function Documentation

__iter__()

lsst.geom._SpherePoint.SpherePoint.__iter__

(

self

)

Definition at line 40 of file _SpherePoint.py.

__repr__()

lsst.geom._SpherePoint.SpherePoint.__repr__

(

self

)

Definition at line 44 of file _SpherePoint.py.

toUnitXYZ()

lsst.geom._SpherePoint.SpherePoint.toUnitXYZ ( * , longitude = None, latitude = None, ra = None, dec = None, units )

static

Compute the unit 3-vectors (as separate arrays) corresponding to
arrays of longitude and latitude.

Parameters
----------
longitude : `float` or `numpy.ndarray`
    Longitude coordinate of input points.
latitude : `float` or `numpy.ndarray`
    Latitude coordinate of input points.
ra : `float` or `numpy.ndarray`
    Synonym for `longitude`.
dec : `float` or `numpy.ndarray`
    Synonym for `latitude`.
units : `AngleUnit`
    Angle unit for inputs.

Returns
-------
x : `float` or numpy.ndarray`
    X coordinates of unit 3-vectors.
y : `float` or numpy.ndarray`
    Y coordinates of unit 3-vectors.
z : `float` or numpy.ndarray`
    Z coordinates of unit 3-vectors.

Notes
-----
The returned Cartesian coordinate values are not guaranteed to be
normalized according to the conventions of `sphgeom.UnitVector3d`, but
are nevertheless compatible with the various vectorized `contains`
methods in `sphgeom` because those apply that normalization
internally.

Definition at line 49 of file _SpherePoint.py.

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The documentation for this class was generated from the following file:

• python/lsst/geom/_SpherePoint.py