lsst.skymap
14.0-4-g3609236+4
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Public Member Functions | |
def | __init__ (self, numTracts, config=None, version=0) |
def | __reduce__ (self) |
def | __iter__ (self) |
def | __len__ (self) |
def | __getitem__ (self, index) |
def | generateTract (self, index) |
def | findTract (self, coord) |
def | findTractPatchList (self, coordList) |
def | findClosestTractPatchList (self, coordList) |
def | __hash__ (self) |
def | __eq__ (self, other) |
def | __ne__ (self, other) |
def | getSha1 (self) |
def | updateSha1 (self, sha1) |
Public Attributes | |
config | |
Static Public Attributes | |
ConfigClass = BaseSkyMapConfig | |
A SkyMap that generates its tracts on request and caches them A subclass should define * __init__ to calculate the required number of tracts (and pass it up) * generateTract to generate a tract Subclassers should also check that the arguments to the constructor are consistent with the below __reduce__ method.
Definition at line 29 of file cachingSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.__init__ | ( | self, | |
numTracts, | |||
config = None , |
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version = 0 |
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) |
Definition at line 40 of file cachingSkyMap.py.
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inherited |
Definition at line 176 of file baseSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.__getitem__ | ( | self, | |
index | |||
) |
Get the TractInfo for a particular index The tract is returned from a cache, if available, otherwise generated on the fly.
Definition at line 67 of file cachingSkyMap.py.
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inherited |
Definition at line 173 of file baseSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.__iter__ | ( | self | ) |
Iterator over tracts
Definition at line 58 of file cachingSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.__len__ | ( | self | ) |
Length is number of tracts
Definition at line 63 of file cachingSkyMap.py.
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inherited |
Definition at line 182 of file baseSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.__reduce__ | ( | self | ) |
To support pickling Warning: This method assumes that the constructor should be defined: __init__(self, config, version=defaultVersion) The use of 'config' is effectively set by the registry mechanism. If additional optional arguments are added, this method should be overridden to correspond.
Definition at line 47 of file cachingSkyMap.py.
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inherited |
Find closest tract and patches that overlap coordinates @param[in] coordList: list of sky coordinates (afwCoord.Coord) @return list of (TractInfo, list of PatchInfo) for tracts and patches that contain, or may contain, the specified region. The list will be empty if there is no overlap.
Definition at line 149 of file baseSkyMap.py.
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inherited |
Find the tract whose center is nearest the specified coord. @param[in] coord: sky coordinate (afwCoord.Coord) @return TractInfo of tract whose center is nearest the specified coord @warning: - if tracts do not cover the whole sky then the returned tract may not include the coord @note - This routine will be more efficient if coord is ICRS. - If coord is equidistant between multiple sky tract centers then one is arbitrarily chosen. - The default implementation is not very efficient; subclasses may wish to override.
Definition at line 110 of file baseSkyMap.py.
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inherited |
Find tracts and patches that overlap a region @param[in] coordList: list of sky coordinates (afwCoord.Coord) @return list of (TractInfo, list of PatchInfo) for tracts and patches that contain, or may contain, the specified region. The list will be empty if there is no overlap. @warning this uses a naive algorithm that may find some tracts and patches that do not overlap the region (especially if the region is not a rectangle aligned along patch x,y).
Definition at line 132 of file baseSkyMap.py.
def lsst.skymap.cachingSkyMap.CachingSkyMap.generateTract | ( | self, | |
index | |||
) |
Generate the TractInfo for the particular index
Definition at line 81 of file cachingSkyMap.py.
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inherited |
Return a SHA1 hash that uniquely identifies this SkyMap instance. Returns ------- sha1 : bytes A 20-byte hash that uniquely identifies this SkyMap instance. Subclasses should almost always override `updateSha1()` instead of this function to add subclass-specific state to the hash.
Definition at line 185 of file baseSkyMap.py.
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inherited |
Add subclass-specific state or configuration options to the SHA1. Parameters ---------- sha1 : hashlib.sha1 A hashlib object on which `update()` can be called to add additional state to the hash. This method is conceptually "protected": it should be reimplemented by all subclasses, but called only by the base class implementation of `getSha1()`.
Definition at line 214 of file baseSkyMap.py.
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inherited |
Definition at line 101 of file baseSkyMap.py.
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staticinherited |
Definition at line 91 of file baseSkyMap.py.