lsst.skymap.discreteSkyMap.DiscreteSkyMap Class Reference

Inheritance diagram for lsst.skymap.discreteSkyMap.DiscreteSkyMap:

Public Member Functions
	__init__ (self, config, version=0)
	generateTract (self, index)
	updateSha1 (self, sha1)

Static Public Attributes
	ConfigClass = DiscreteSkyMapConfig

Protected Attributes
	_tractBuilder

Static Protected Attributes
tuple	_version = (1, 0)

Detailed Description

Discrete sky map pixelization.

We put a square Tract at each of the nominated coordinates.

Parameters
----------
config : `lsst.skyMap.BaseSkyMapConfig`
    The configuration for this SkyMap; if None use the default config.
version : `int` or `tuple` of `int` (optional)
    Software version of this class, to retain compatibility with old
    instances.

Definition at line 50 of file discreteSkyMap.py.

Constructor & Destructor Documentation

__init__()

lsst.skymap.discreteSkyMap.DiscreteSkyMap.__init__	(		self,
			config,
			version = 0 )

Reimplemented from lsst.skymap.cachingSkyMap.CachingSkyMap.

Definition at line 66 of file discreteSkyMap.py.

    def __init__(self, config, version=0):
        numTracts = len(config.radiusList)
        super(DiscreteSkyMap, self).__init__(numTracts, config, version)
 

Member Function Documentation

generateTract()

lsst.skymap.discreteSkyMap.DiscreteSkyMap.generateTract	(		self,
			index )

Generate TractInfo for the specified tract index.

Reimplemented from lsst.skymap.cachingSkyMap.CachingSkyMap.

Definition at line 70 of file discreteSkyMap.py.

    def generateTract(self, index):
        """Generate TractInfo for the specified tract index."""
        center = geom.SpherePoint(self.config.raList[index], self.config.decList[index], geom.degrees)
        radius = self.config.radiusList[index]
        wcs = self._wcsFactory.makeWcs(crPixPos=geom.Point2D(0, 0), crValCoord=center)
        return ExplicitTractInfo(index, self._tractBuilder, center,
                                 radius*geom.degrees, self.config.tractOverlap*geom.degrees, wcs)
 

updateSha1()

lsst.skymap.discreteSkyMap.DiscreteSkyMap.updateSha1	(		self,
			sha1 )

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

Reimplemented from lsst.skymap.baseSkyMap.BaseSkyMap.

Definition at line 78 of file discreteSkyMap.py.

    def updateSha1(self, sha1):
        """Add subclass-specific state or configuration options to the SHA1."""
        fmt = "<{}d".format(len(self.config.radiusList))
        sha1.update(struct.pack(fmt, *self.config.raList))
        sha1.update(struct.pack(fmt, *self.config.decList))
        sha1.update(struct.pack(fmt, *self.config.radiusList))

Member Data Documentation

_tractBuilder

lsst.skymap.discreteSkyMap.DiscreteSkyMap._tractBuilder

protected

Definition at line 75 of file discreteSkyMap.py.

_version

tuple lsst.skymap.discreteSkyMap.DiscreteSkyMap._version = (1, 0)

staticprotected

Definition at line 64 of file discreteSkyMap.py.

ConfigClass

lsst.skymap.discreteSkyMap.DiscreteSkyMap.ConfigClass = DiscreteSkyMapConfig

static

Definition at line 63 of file discreteSkyMap.py.

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/skymap/ga8c6da7877+a2b54eae19/python/lsst/skymap/discreteSkyMap.py