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Linux64
meas_algorithms
11.0-2-gb8b8ce7
python
lsst
meas
algorithms
makeCoaddApCorrMap.py
Go to the documentation of this file.
1
from
lsst.afw.image
import
ApCorrMap
2
from
.algorithmsLib
import
CoaddBoundedField, CoaddBoundedFieldElement
3
4
__all__ = [
"makeCoaddApCorrMap"
,]
5
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def
makeCoaddApCorrMap
(catalog, coaddBox, coaddWcs, weightFieldName="weight"):
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"""Construct an ApCorrMap for a coadd
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@param catalog: Table of coadd inputs (lsst.afw.table.ExposureCatalog)
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@param coaddBox: Bounding box for coadd (lsst.afw.geom.Box2I)
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@param coaddWcs: Wcs for coadd
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@param weightFieldName: name of weight field in catalog
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@return aperture corrections
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"""
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# Assemble the BoundedFields for each type
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everything = {}
# name --> list of CoaddBoundedFieldElement
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weightKey = catalog.schema[weightFieldName].asKey()
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for
row
in
catalog:
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apCorrMap = row.getApCorrMap()
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if
not
apCorrMap:
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continue
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weight = row.get(weightKey)
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wcs = row.getWcs()
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validPolygon = row.getValidPolygon()
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for
name, bf
in
apCorrMap.items():
27
if
not
name
in
everything:
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everything[name] = []
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everything[name].append(
CoaddBoundedFieldElement
(bf, wcs, validPolygon, weight))
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# Construct a CoaddBoundedField for each type
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apCorrMap =
ApCorrMap
()
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for
name, elements
in
everything.iteritems():
34
apCorrMap.set(name, CoaddBoundedField(coaddBox, coaddWcs, elements))
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return
apCorrMap
lsst::meas::algorithms::CoaddBoundedFieldElement
Struct used to hold one Exposure's data in a CoaddBoundedField.
Definition:
CoaddBoundedField.h:34
lsst::afw::image::ApCorrMap
A thin wrapper around std::map to allow aperture corrections to be attached to Exposures.
Definition:
ApCorrMap.h:42
lsst::meas::algorithms.makeCoaddApCorrMap.makeCoaddApCorrMap
def makeCoaddApCorrMap
Definition:
makeCoaddApCorrMap.py:6
lsst::afw::image
Definition:
TanWcsFormatter.h:52
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