LSST Applications
21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
LSST Data Management Base Package
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Functions | |
def | canRunTests () |
def | createTwoFakeCcdImages (num1=4, num2=4, seed=100, fakeCcdId=12, photoCalibMean1=1e-2, photoCalibMean2=1.2e-2, fakeWcses=(None, None), fakeVisitInfos=(None, None)) |
def | createFakeCcdImage (butler, visit, num, fluxFieldName, photoCalibMean=1e-2, photoCalibErr=1.0, fakeCcdId=12, fakeWcs=None, fakeVisitInfo=None) |
def | createFakeCatalog (num, bbox, fluxFieldName, skyWcs=None, refCat=False) |
def | fillCatalog (schema, num, bbox, centroidKey, xErrKey, yErrKey, shapeKey, fluxFieldName, skyWcs=None, fluxErrFraction=0.05, refCat=False) |
def | getMeasuredStarsFromCatalog (catalog, pixToFocal) |
def lsst.jointcal.testUtils.canRunTests | ( | ) |
Returns True if the necessary packages and files are available. We need ``obs_cfht`` to load the test/data/cfht_minimal dataset, which includes the metadata that is used to build the fake catalogs.
Definition at line 39 of file testUtils.py.
def lsst.jointcal.testUtils.createFakeCatalog | ( | num, | |
bbox, | |||
fluxFieldName, | |||
skyWcs = None , |
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refCat = False |
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) |
Return a fake minimally-useful catalog for jointcal. Parameters ---------- num : `int` Number of sources to put in the catalogs. Should be a square, to have sqrt(num) centroids on a grid. bbox : `lsst.geom.Box2I` Bounding Box of the detector to populate. fluxFieldName : `str` Name of the flux field to populate in the catalog, without `_instFlux` (e.g. "slot_CalibFlux"). skyWcs : `lsst.afw.geom.SkyWcs` or None, optional If supplied, use this to fill in coordinates from centroids. refCat : `bool`, optional Return a ``SimpleCatalog`` so that it behaves like a reference catalog? Returns ------- catalog : `lsst.afw.table.SourceCatalog` A populated source catalog.
Definition at line 188 of file testUtils.py.
def lsst.jointcal.testUtils.createFakeCcdImage | ( | butler, | |
visit, | |||
num, | |||
fluxFieldName, | |||
photoCalibMean = 1e-2 , |
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photoCalibErr = 1.0 , |
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fakeCcdId = 12 , |
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fakeWcs = None , |
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fakeVisitInfo = None |
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) |
Create a fake CcdImage by making a fake catalog. Parameters ---------- butler : `lsst.daf.persistence.Butler` Butler to load metadata from. visit : `int` Visit identifier to build a butler dataId. num : `int` Number of sources to put in the catalogs. Should be a square, to have sqrt(num) centroids on a grid. fluxFieldName : `str` Name of the flux field to populate in the catalog, without `_instFlux` (e.g. "slot_CalibFlux"). photoCalibMean : `float`, optional Value to set for calibrationMean in the created PhotoCalib. Note: this value is 1/instFluxMag0, so it should be less than 1. photoCalibErr : `float`, optional Value to set for calibrationErr in the created PhotoCalib. fakeCcdId : `int`, optional Use this as the ccdId in the returned CcdImage. fakeWcs : `lsst.afw.geom.SkyWcs`, optional A SkyWcs to use instead of one read from disk. fakeVisitInfo : `lsst.afw.image.VisitInfo`, optional A VisitInfo to use instead of one read from disk. Returns ------- struct : `lsst.pipe.base.Struct` Result struct with components: - `catalog` : Catalogs containing fake sources (`lsst.afw.table.SourceCatalog`). - `ccdImage` : CcdImage containing the metadata and fake sources (`lsst.jointcal.CcdImage`). - `bbox` : Bounding Box of the image (`lsst.geom.Box2I`). - `skyWcs` : SkyWcs of the image (`lsst.afw.geom.SkyWcs`).
Definition at line 130 of file testUtils.py.
def lsst.jointcal.testUtils.createTwoFakeCcdImages | ( | num1 = 4 , |
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num2 = 4 , |
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seed = 100 , |
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fakeCcdId = 12 , |
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photoCalibMean1 = 1e-2 , |
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photoCalibMean2 = 1.2e-2 , |
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fakeWcses = (None, None) , |
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fakeVisitInfos = (None, None) |
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) |
Return two fake ccdImages built on CFHT Megacam metadata. If ``num1 == num2``, the catalogs will align on-sky so each source will have a match in the other catalog. This uses the butler dataset stored in `tests/data/cfht_minimal` to bootstrap the metadata. Parameters ---------- num1, num2 : `int`, optional Number of sources to put in the first and second catalogs. Should be a square, to have sqrt(num) centroids on a grid. seed : `int`, optional Seed value for np.random. fakeCcdId : `int`, optional Sensor identifier to use for both CcdImages. The wcs, bbox, photoCalib, etc. will still be drawn from the CFHT ccd=12 files, as that is the only testdata that is included in this simple test dataset. photoCalibMean1, photoCalibMean2: `float`, optional The mean photometric calibration to pass to each ccdImage construction. Note: this value is 1/instFluxMag0, so it should be less than 1. fakeWcses : `list` [`lsst.afw.geom.SkyWcs`], optional The SkyWcses to use instead of the ones read from disk. fakeWcses : `list` [`lsst.afw.image.VisitInfo`], optional The VisitInfos to use instead of the ones read from disk. Returns ------- struct : `lsst.pipe.base.Struct` Result struct with components: - `camera` : Camera representing these catalogs (`lsst.afw.cameraGeom.Camera`). - `catalogs` : Catalogs containing fake sources (`list` of `lsst.afw.table.SourceCatalog`). - `ccdImageList` : CcdImages containing the metadata and fake sources (`list` of `lsst.jointcal.CcdImage`). - `bbox` : Bounding Box of the image (`lsst.geom.Box2I`). - 'fluxFieldName' : name of the instFlux field in the catalogs ('str').
Definition at line 52 of file testUtils.py.
def lsst.jointcal.testUtils.fillCatalog | ( | schema, | |
num, | |||
bbox, | |||
centroidKey, | |||
xErrKey, | |||
yErrKey, | |||
shapeKey, | |||
fluxFieldName, | |||
skyWcs = None , |
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fluxErrFraction = 0.05 , |
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refCat = False |
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) |
Return a catalog populated with fake, but reasonable, sources. Centroids are placed on a uniform grid, errors are normally distributed. Parameters ---------- schema : `lsst.afw.table.Schema` Pre-built schema to make the catalog from. num : `int` Number of sources to put in the catalog. bbox : `lsst.geom.Box2I` Bounding box of the ccd to put sources in. centroidKey : `lsst.afw.table.Key` Key for the centroid field to populate. xErrKey : `lsst.afw.table.Key` Key for the xErr field to populate. yErrKey : `lsst.afw.table.Key` Key for the yErr field to populate. shapeKey : `lsst.afw.table.Key` Key for the shape field to populate. fluxFieldName : `str` Name of the flux field to populate in the catalog, without `_instFlux` (e.g. "slot_CalibFlux"). skyWcs : `lsst.afw.geom.SkyWcs` or None, optional If supplied, use this to fill in coordinates from centroids. fluxErrFraction : `float`, optional Fraction of instFlux to use for the instFluxErr. refCat : `bool`, optional Return a ``SimpleCatalog`` so that it behaves like a reference catalog? Returns ------- catalog : `lsst.afw.table.SourceCatalog` The filled catalog.
Definition at line 231 of file testUtils.py.
def lsst.jointcal.testUtils.getMeasuredStarsFromCatalog | ( | catalog, | |
pixToFocal | |||
) |
Return a list of measuredStars built from a catalog. Parameters ---------- catalog : `lsst.afw.table.SourceCatalog` The table to get sources from. pixToFocal : `lsst.afw.geom.TransformPoint2ToPoint2` Transform that goes from pixel to focal plane coordinates, to set the MeasuredStar x/y focal points. Returns ------- stars : `list` of `lsst.jointcal.MeasuredStar` MeasuredStars built from the catalog sources.
Definition at line 308 of file testUtils.py.