def loadData(pixelScale=1.0):
"""Prepare the data we need to run the example"""
# Load sample input from disk
mypath = lsst.utils.getPackageDir('afwdata')
print(
" mypath = ",
mypath) # mssg -- error happens before i can even possibly print this
# sys.exit()
imFile = os.path.join(mypath, "CFHT", "D4",
"cal-53535-i-797722_small_1.fits")
exposure = afwImage.ExposureF(imFile)
# set the exposure time
calib = afwImage.Calib()
calib.setExptime(1.0)
exposure.setCalib(calib)
# add a filter
afwImage.Filter.define(afwImage.FilterProperty(FilterName, 600, True))
exposure.setFilter(afwImage.Filter(FilterName))
# and a trivial WCS (needed by MyAstrometryTask)
pixelScale /= 3600.0 # degrees per pixel
wcs = afwImage.makeWcs(Coord(PointD(15, 1)), PointD(0, 0), pixelScale, 0.0,
0.0, pixelScale)
exposure.setWcs(wcs)
return exposure
def setUp(self):
maskedImage = afwImage.MaskedImageF(inFilePathSmall)
maskedImageMD = afwImage.readMetadata(inFilePathSmall)
self.smallExposure = afwImage.ExposureF(inFilePathSmall)
self.width = maskedImage.getWidth()
self.height = maskedImage.getHeight()
self.wcs = afwImage.makeWcs(maskedImageMD)
self.psf = DummyPsf(2.0)
self.detector = DetectorWrapper().detector
self.exposureBlank = afwImage.ExposureF()
self.exposureMiOnly = afwImage.makeExposure(maskedImage)
self.exposureMiWcs = afwImage.makeExposure(maskedImage, self.wcs)
self.exposureCrWcs = afwImage.ExposureF(
100, 100, self.wcs) # n.b. the (100, 100, ...) form
self.exposureCrOnly = afwImage.ExposureF(afwGeom.ExtentI(
100, 100)) # test with ExtentI(100, 100) too
afwImage.Filter.reset()
afwImage.FilterProperty.reset()
filterPolicy = pexPolicy.Policy()
filterPolicy.add("lambdaEff", 470.0)
afwImage.Filter.define(afwImage.FilterProperty("g", filterPolicy))
def loadData(psfSigma=1.5):
"""Prepare the data we need to run the example"""
# Load sample input from disk
mypath = lsst.utils.getPackageDir('afwdata')
imFile = os.path.join(mypath, "CFHT", "D4",
"cal-53535-i-797722_small_1.fits")
exposure = afwImage.ExposureF(imFile)
# add a filter
afwImage.Filter.define(afwImage.FilterProperty(FilterName, 600, True))
exposure.setFilter(afwImage.Filter(FilterName))
# add a simple Gaussian PSF model
psfModel = GaussianPsf(11, 11, psfSigma)
exposure.setPsf(psfModel)
return exposure
def defineFilterProperty(self, name, lambdaEff, force=False):
return afwImage.FilterProperty(name, lambdaEff, force)
