HealpixSkyMap

class lsst.skymap.healpixSkyMap.HealpixSkyMap(*args, **kwargs)

Bases: CachingSkyMap

HEALPix-based sky map pixelization.

We put a Tract at the position of each HEALPixel.

Parameters

configlsst.skymap.BaseSkyMapConfig

The configuration for this SkyMap.

versionint or tuple of int (optional)

Software version of this class, to retain compatibility with old instances.

Deprecated since version 28: HealpixSkyMap has been deprecated and will be removed after v28.

Attributes Summary

numAngles

Methods Summary

findTract(coord)	Find the tract whose inner region includes the coord.
generateTract(index)	Generate TractInfo for the specified tract index.
updateSha1(sha1)	Add subclass-specific state or configuration options to the SHA1.

Attributes Documentation

numAngles = 4

Methods Documentation

findTract(coord)

Find the tract whose inner region includes the coord.

Parameters

coordlsst.geom.SpherePoint

ICRS sky coordinate to search for.

Returns

tractInfoTractInfo

Info for tract whose inner region includes the coord.

generateTract(index)

Generate TractInfo for the specified tract index.

updateSha1(sha1)

Add subclass-specific state or configuration options to the SHA1.