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def | __init__ (self, config, version=0) |
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def | generateTract (self, index) |
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def | updateSha1 (self, sha1) |
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def | __reduce__ (self) |
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def | __iter__ (self) |
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def | __len__ (self) |
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def | __getitem__ (self, index) |
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def | findTract (self, coord) |
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def | findTractPatchList (self, coordList) |
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def | findClosestTractPatchList (self, coordList) |
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def | __hash__ (self) |
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def | __eq__ (self, other) |
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def | __ne__ (self, other) |
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def | getSha1 (self) |
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Discrete sky map pixelization.
We put a square Tract at each of the nominated coordinates.
Definition at line 50 of file discreteSkyMap.py.
◆ __init__()
def lsst.skymap.discreteSkyMap.DiscreteSkyMap.__init__ |
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config, |
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version = 0 |
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Constructor
@param[in] config: an instance of self.ConfigClass; if None the default config is used
@param[in] version: software version of this class, to retain compatibility with old instances
Definition at line 58 of file discreteSkyMap.py.
◆ __eq__()
def lsst.skymap.baseSkyMap.BaseSkyMap.__eq__ |
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self, |
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other |
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◆ __getitem__()
def lsst.skymap.cachingSkyMap.CachingSkyMap.__getitem__ |
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self, |
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index |
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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.
◆ __hash__()
def lsst.skymap.baseSkyMap.BaseSkyMap.__hash__ |
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self | ) |
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◆ __iter__()
def lsst.skymap.cachingSkyMap.CachingSkyMap.__iter__ |
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self | ) |
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◆ __len__()
def lsst.skymap.cachingSkyMap.CachingSkyMap.__len__ |
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self | ) |
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◆ __ne__()
def lsst.skymap.baseSkyMap.BaseSkyMap.__ne__ |
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self, |
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other |
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◆ __reduce__()
def lsst.skymap.cachingSkyMap.CachingSkyMap.__reduce__ |
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self | ) |
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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.
◆ findClosestTractPatchList()
def lsst.skymap.baseSkyMap.BaseSkyMap.findClosestTractPatchList |
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self, |
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coordList |
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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.
◆ findTract()
def lsst.skymap.baseSkyMap.BaseSkyMap.findTract |
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coord |
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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.
◆ findTractPatchList()
def lsst.skymap.baseSkyMap.BaseSkyMap.findTractPatchList |
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self, |
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coordList |
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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.
◆ generateTract()
def lsst.skymap.discreteSkyMap.DiscreteSkyMap.generateTract |
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self, |
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index |
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◆ getSha1()
def lsst.skymap.baseSkyMap.BaseSkyMap.getSha1 |
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self | ) |
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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.
◆ updateSha1()
def lsst.skymap.discreteSkyMap.DiscreteSkyMap.updateSha1 |
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self, |
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sha1 |
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Add subclass-specific state or configuration options to the SHA1.
Definition at line 76 of file discreteSkyMap.py.
◆ config
lsst.skymap.baseSkyMap.BaseSkyMap.config |
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◆ ConfigClass
The documentation for this class was generated from the following file: