SpherePoint

class lsst.geom.SpherePoint

Bases: pybind11_object

Methods Summary

atPole(self)
bearingTo(self, other)
getDec(self)
getLatitude(self)
getLongitude(self)
getPosition(self, units)
getRa(self)
getTangentPlaneOffset(self, other)
getVector(self)
isFinite(self)
offset(self, bearing, amount)
rotated(self, axis, amount)
separation(self, other)
toUnitXYZ(*[, longitude, latitude, ra, dec])	Compute the unit 3-vectors (as separate arrays) corresponding to arrays of longitude and latitude.

Methods Documentation

atPole(self: lsst.geom.SpherePoint) → bool

bearingTo(self: lsst.geom.SpherePoint, other: lsst.geom.SpherePoint) → lsst.geom.Angle

getDec(self: lsst.geom.SpherePoint) → lsst.geom.Angle

getLatitude(self: lsst.geom.SpherePoint) → lsst.geom.Angle

getLongitude(self: lsst.geom.SpherePoint) → lsst.geom.Angle

getPosition(self: lsst.geom.SpherePoint, units: lsst.geom.AngleUnit) → lsst.geom.Point2D

getRa(self: lsst.geom.SpherePoint) → lsst.geom.Angle

getTangentPlaneOffset(self: lsst.geom.SpherePoint, other: lsst.geom.SpherePoint) → tuple[lsst.geom.Angle, lsst.geom.Angle]

getVector(self: lsst.geom.SpherePoint) → lsst.sphgeom._sphgeom.UnitVector3d

isFinite(self: lsst.geom.SpherePoint) → bool

offset(self: lsst.geom.SpherePoint, bearing: lsst.geom.Angle, amount: lsst.geom.Angle) → lsst.geom.SpherePoint

rotated(self: lsst.geom.SpherePoint, axis: lsst.geom.SpherePoint, amount: lsst.geom.Angle) → lsst.geom.SpherePoint

separation(self: lsst.geom.SpherePoint, other: lsst.geom.SpherePoint) → lsst.geom.Angle

static toUnitXYZ(*, longitude=None, latitude=None, ra=None, dec=None, units)

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

Parameters:

longitudefloat or numpy.ndarray

Longitude coordinate of input points.

latitudefloat or numpy.ndarray

Latitude coordinate of input points.

rafloat or numpy.ndarray

Synonym for longitude.

decfloat or numpy.ndarray

Synonym for latitude.

unitsAngleUnit

Angle unit for inputs.

Returns:

xfloat or numpy.ndarray`

X coordinates of unit 3-vectors.

yfloat or numpy.ndarray`

Y coordinates of unit 3-vectors.

zfloat 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.