lsst.pipe.tasks g94c5179e93+fec7869426
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Public Member Functions | |
def | run (self, diaSources, tractPatchId, skymapBits) |
def | addNewDiaObject (self, diaSrc, diaSources, ccdVisit, diaSourceId, diaObjCat, idCat, diaObjCoords, healPixIndices) |
def | updateCatalogs (self, matchIndex, diaSrc, diaSources, ccdVisit, diaSourceId, diaObjCat, diaObjCoords, healPixIndices) |
def | findMatches (self, src_ra, src_dec, tol, hpIndices, diaObjs) |
def | createDiaObject (self, objId, ra, decl) |
Static Public Attributes | |
ConfigClass = SimpleAssociationConfig | |
Construct DiaObjects from a DataFrame of DIASources by spatially associating the sources. Represents a simple, brute force algorithm, 2-way matching of DiaSources into. DiaObjects. Algorithm picks the nearest, first match within the matching radius of a DiaObject to associate a source to for simplicity.
Definition at line 54 of file simpleAssociation.py.
def lsst.pipe.tasks.simpleAssociation.SimpleAssociationTask.addNewDiaObject | ( | self, | |
diaSrc, | |||
diaSources, | |||
ccdVisit, | |||
diaSourceId, | |||
diaObjCat, | |||
idCat, | |||
diaObjCoords, | |||
healPixIndices | |||
) |
Create a new DiaObject and append its data. Parameters ---------- diaSrc : `pandas.Series` Full unassociated DiaSource to create a DiaObject from. diaSources : `pandas.DataFrame` DiaSource catalog to update information in. The catalog is modified in place. ccdVisit : `int` Unique identifier of the ccdVisit where ``diaSrc`` was observed. diaSourceId : `int` Unique identifier of the DiaSource. diaObjectCat : `list` of `dict`s Catalog of diaObjects to append the new object o. idCat : `lsst.afw.table.SourceCatalog` Catalog with the IdFactory used to generate unique DiaObject identifiers. diaObjectCoords : `list` of `list`s of `lsst.geom.SpherePoint`s Set of coordinates of DiaSource locations that make up the DiaObject average coordinate. healPixIndices : `list` of `int`s HealPix indices representing the locations of each currently existing DiaObject.
Definition at line 211 of file simpleAssociation.py.
def lsst.pipe.tasks.simpleAssociation.SimpleAssociationTask.createDiaObject | ( | self, | |
objId, | |||
ra, | |||
decl | |||
) |
Create a simple empty DiaObject with location and id information. Parameters ---------- objId : `int` Unique ID for this new DiaObject. ra : `float` RA location of this DiaObject. decl : `float` Dec location of this DiaObject Returns ------- DiaObject : `dict` Dictionary of values representing a DiaObject.
Definition at line 360 of file simpleAssociation.py.
def lsst.pipe.tasks.simpleAssociation.SimpleAssociationTask.findMatches | ( | self, | |
src_ra, | |||
src_dec, | |||
tol, | |||
hpIndices, | |||
diaObjs | |||
) |
Search healPixels around DiaSource locations for DiaObjects. Parameters ---------- src_ra : `float` DiaSource RA location. src_dec : `float` DiaSource Dec location. tol : `float` Size of annulus to convert to covering healPixels and search for DiaObjects. hpIndices : `list` of `int`s List of heal pix indices containing the DiaObjects in ``diaObjs``. diaObjs : `list` of `dict`s Catalog diaObjects to with full location information for comparing to DiaSources. Returns ------- results : `lsst.pipe.base.Struct` Results struct containing ``dists`` Array of distances between the current DiaSource diaObjects. (`numpy.ndarray` or `None`) ``matches`` Array of array indices of diaObjects this DiaSource matches to. (`numpy.ndarray` or `None`)
Definition at line 312 of file simpleAssociation.py.
def lsst.pipe.tasks.simpleAssociation.SimpleAssociationTask.run | ( | self, | |
diaSources, | |||
tractPatchId, | |||
skymapBits | |||
) |
Associate DiaSources into a collection of DiaObjects using a brute force matching algorithm. Reproducible is for the same input data is assured by ordering the DiaSource data by ccdVisit ordering. Parameters ---------- diaSources : `pandas.DataFrame` DiaSources grouped by CcdVisitId to spatially associate into DiaObjects. tractPatchId : `int` Unique identifier for the tract patch. skymapBits : `int` Maximum number of bits used the ``tractPatchId`` integer identifier. Returns ------- results : `lsst.pipe.base.Struct` Results struct with attributes: ``assocDiaSources`` Table of DiaSources with updated values for the DiaObjects they are spatially associated to (`pandas.DataFrame`). ``diaObjects`` Table of DiaObjects from matching DiaSources (`pandas.DataFrame`).
Definition at line 65 of file simpleAssociation.py.
def lsst.pipe.tasks.simpleAssociation.SimpleAssociationTask.updateCatalogs | ( | self, | |
matchIndex, | |||
diaSrc, | |||
diaSources, | |||
ccdVisit, | |||
diaSourceId, | |||
diaObjCat, | |||
diaObjCoords, | |||
healPixIndices | |||
) |
Update DiaObject and DiaSource values after an association. Parameters ---------- matchIndex : `int` Array index location of the DiaObject that ``diaSrc`` was associated to. diaSrc : `pandas.Series` Full unassociated DiaSource to create a DiaObject from. diaSources : `pandas.DataFrame` DiaSource catalog to update information in. The catalog is modified in place. ccdVisit : `int` Unique identifier of the ccdVisit where ``diaSrc`` was observed. diaSourceId : `int` Unique identifier of the DiaSource. diaObjectCat : `list` of `dict`s Catalog of diaObjects to append the new object o. diaObjectCoords : `list` of `list`s of `lsst.geom.SpherePoint`s Set of coordinates of DiaSource locations that make up the DiaObject average coordinate. healPixIndices : `list` of `int`s HealPix indices representing the locations of each currently existing DiaObject.
Definition at line 261 of file simpleAssociation.py.
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static |
Definition at line 62 of file simpleAssociation.py.