def runDataRef(self, patchRefList):
catalogs = dict(readCatalog(self, patchRef) for patchRef in patchRefList)
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRefList[0])
idFactory = self.makeIdFactory(patchRefList[0])
skySeed = patchRefList[0].get(self.config.coaddName + "MergedCoaddId")
mergeCatalogStruct = self.run(catalogs, skyInfo, idFactory, skySeed)
self.write(patchRefList[0], mergeCatalogStruct.outputCatalog)
def runDataRef(self, patchRefList):
catalogs = dict(readCatalog(self, patchRef) for patchRef in patchRefList)
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRefList[0])
idFactory = self.makeIdFactory(patchRefList[0])
skySeed = patchRefList[0].get(self.config.coaddName + "MergedCoaddId")
mergeCatalogStruct = self.run(catalogs, skyInfo, idFactory, skySeed)
self.write(patchRefList[0], mergeCatalogStruct.outputCatalog)
def mergeCatalogs(self, catalogs, patchRef):
"""!
\brief Merge multiple catalogs.
After ordering the catalogs and filters in priority order,
\ref getMergedSourceCatalog of the \ref FootprintMergeList_ "FootprintMergeList" created by
\ref \_\_init\_\_ is used to perform the actual merging. Finally, \ref cullPeaks is used to remove
garbage peaks detected around bright objects.
\param[in] catalogs
\param[in] patchRef
\param[out] mergedList
"""
# print("test")
# Convert distance to tract coordinate
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRef)
tractWcs = skyInfo.wcs
peakDistance = self.config.minNewPeak / tractWcs.getPixelScale().asArcseconds()
samePeakDistance = self.config.maxSamePeak / tractWcs.getPixelScale().asArcseconds()
# Put catalogs, filters in priority order
orderedCatalogs = [catalogs[band] for band in self.config.priorityList if band in catalogs.keys()]
orderedBands = [getShortFilterName(band) for band in self.config.priorityList
if band in catalogs.keys()]
mergedList = self.merged.getMergedSourceCatalog(orderedCatalogs, orderedBands, peakDistance,
self.schema, self.makeIdFactory(patchRef),
samePeakDistance)
#
# Add extra sources that correspond to blank sky
#
skySeed = patchRef.get(self.config.coaddName + "MergedCoaddId")
skySourceFootprints = self.getSkySourceFootprints(mergedList, skyInfo, skySeed)
if skySourceFootprints:
key = mergedList.schema.find("merge_footprint_%s" % self.config.skyFilterName).key
for foot in skySourceFootprints:
s = mergedList.addNew()
s.setFootprint(foot)
s.set(key, True)
# pick only the first nObjects merged sources (default:100)
self.log.info("DEBUGGING: Keep {} sources".format(self.config.nObjects))
mergedList = mergedList[:self.config.nObjects]
# Sort Peaks from brightest to faintest
for record in mergedList:
record.getFootprint().sortPeaks()
self.log.info("Merged to %d sources" % len(mergedList))
# Attempt to remove garbage peaks
self.cullPeaks(mergedList)
return mergedList
def runDataRef(self, patchRefList):
catalogs = dict(
readCatalog(self, patchRef) for patchRef in patchRefList)
skyInfo = getSkyInfo(coaddName=self.config.coaddName,
patchRef=patchRefList[0])
idFactory = self.makeIdFactory(patchRefList[0])
skySeed = getGen3CoaddExposureId(patchRefList[0],
coaddName=self.config.coaddName,
includeBand=False,
log=self.log)
mergeCatalogStruct = self.run(catalogs, skyInfo, idFactory, skySeed)
self.write(patchRefList[0], mergeCatalogStruct.outputCatalog)
def run(self, patchRef):
"""Measure and deblend"""
exposure = patchRef.get(self.config.coaddName + "Coadd",
immediate=True)
"""Read in the FAKE mask plane"""
mask = exposure.getMaskedImage().getMask()
fakebit = mask.getPlaneBitMask('FAKE')
sources = self.readSources(patchRef)
self.log.info("Found %d sources" % len(sources))
"""ignore objects whose footprints do NOT overlap with the 'FAKE' mask"""
removes = []
for i_ss, ss in enumerate(sources):
foot = ss.getFootprint()
footTmp = afwDetect.Footprint(foot)
footTmp.intersectMask(mask, fakebit)
if footTmp.getArea() == foot.getArea():
removes.append(i_ss)
removes = sorted(removes, reverse=True)
for r in removes:
del sources[r]
self.log.info("Found %d sources near fake footprints" % len(sources))
if self.config.doDeblend:
self.deblend.run(exposure, sources, exposure.getPsf())
bigKey = sources.schema["deblend.parent-too-big"].asKey()
numBig = sum(
(s.get(bigKey) for s in sources
)) # catalog is non-contiguous so can't extract column
if numBig > 0:
self.log.warn(
"Patch %s contains %d large footprints that were not deblended"
% (patchRef.dataId, numBig))
self.measurement.run(exposure, sources)
skyInfo = getSkyInfo(coaddName=self.config.coaddName,
patchRef=patchRef)
self.setPrimaryFlags.run(sources,
skyInfo.skyMap,
skyInfo.tractInfo,
skyInfo.patchInfo,
includeDeblend=self.config.doDeblend)
self.propagateFlags.run(patchRef.getButler(), sources,
self.propagateFlags.getCcdInputs(exposure),
exposure.getWcs())
if self.config.doMatchSources:
self.writeMatches(patchRef, exposure, sources)
self.write(patchRef, sources)
def run(self, patchRef):
"""Measure and deblend"""
exposure = patchRef.get(self.config.coaddName + "Coadd", immediate=True)
"""Read in the FAKE mask plane"""
mask = exposure.getMaskedImage().getMask()
fakebit = mask.getPlaneBitMask('FAKE')
sources = self.readSources(patchRef)
self.log.info("Found %d sources"% len(sources))
"""ignore objects whose footprints do NOT overlap with the 'FAKE' mask"""
removes = []
for i_ss, ss in enumerate(sources):
foot = ss.getFootprint()
footTmp = afwDetect.Footprint(foot)
footTmp.intersectMask(mask, fakebit)
if footTmp.getArea() == foot.getArea():
removes.append(i_ss)
removes = sorted(removes, reverse=True)
for r in removes:
del sources[r]
self.log.info("Found %d sources near fake footprints"% len(sources))
if self.config.doDeblend:
self.deblend.run(exposure, sources, exposure.getPsf())
bigKey = sources.schema["deblend.parent-too-big"].asKey()
numBig = sum((s.get(bigKey) for s in sources)) # catalog is non-contiguous so can't extract column
if numBig > 0:
self.log.warn("Patch %s contains %d large footprints that were not deblended" %
(patchRef.dataId, numBig))
self.measurement.run(exposure, sources)
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRef)
self.setPrimaryFlags.run(sources, skyInfo.skyMap, skyInfo.tractInfo, skyInfo.patchInfo,
includeDeblend=self.config.doDeblend)
self.propagateFlags.run(patchRef.getButler(), sources, self.propagateFlags.getCcdInputs(exposure),
exposure.getWcs())
if self.config.doMatchSources:
self.writeMatches(patchRef, exposure, sources)
self.write(patchRef, sources)
def run(self, patchRef):
"""Measure and deblend"""
exposure = patchRef.get(self.config.coaddName + "Coadd", immediate=True)
sources = self.readSources(patchRef)
# We sort Peaks by peak value at this stage, rather than immediately after merging them,
# because in the future we may record different peak values in different bands, and hence
# want to sort them differently in each band. We'll have to modify this code at that point,
# passing a Key for the appropriate field to sortPeaks().
for record in sources:
record.getFootprint().sortPeaks()
if self.config.doDeblend:
self.deblend.run(exposure, sources, exposure.getPsf())
self.measurement.run(exposure, sources)
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRef)
self.setPrimaryFlags.run(sources, skyInfo.skyMap, skyInfo.tractInfo, skyInfo.patchInfo,
includeDeblend=self.config.doDeblend)
self.propagateFlags.run(patchRef.getButler(), sources, self.propagateFlags.getCcdInputs(exposure),
exposure.getWcs())
if self.config.doMatchSources:
self.writeMatches(patchRef, exposure, sources)
self.write(patchRef, sources)
def mergeCatalogs(self, catalogs, patchRef):
"""Merge multiple catalogs
"""
# Convert distance to tract coordiante
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=patchRef)
tractWcs = skyInfo.wcs
peakDistance = self.config.minNewPeak / tractWcs.pixelScale().asArcseconds()
samePeakDistance = self.config.maxSamePeak / tractWcs.pixelScale().asArcseconds()
# Put catalogs, filters in priority order
orderedCatalogs = [catalogs[band] for band in self.config.priorityList if band in catalogs.keys()]
orderedBands = [getShortFilterName(band) for band in self.config.priorityList
if band in catalogs.keys()]
mergedList = self.merged.getMergedSourceCatalog(orderedCatalogs, orderedBands, peakDistance,
self.schema, self.makeIdFactory(patchRef),
samePeakDistance)
copySlots(orderedCatalogs[0], mergedList)
self.log.info("Merged to %d sources" % len(mergedList))
return mergedList
def run(self, dataRef):
self.log.info("Processing %s" % (dataRef.dataId))
# initialize
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=dataRef)
coadd = dataRef.get(self.config.coaddName + "Coadd")
wcs = coadd.getWcs()
xy0 = coadd.getXY0()
mask = coadd.getMaskedImage().getMask()
dim = mask.getDimensions()
mask_array = mask.getArray()
ra = [0.0]*self.config.N
dec = [0.0]*self.config.N
value = [0]*self.config.N
isPatchInner = [True]*self.config.N
isTractInner = [True]*self.config.N
for i in range(self.config.N):
ra[i], dec[i], value[i], isPatchInner[i], isTractInner[i] = self.drawOnePoint(mask_array, dim, wcs, xy0, skyInfo)
c1 = pyfits.Column(name='ra', format='D', array=ra)
c2 = pyfits.Column(name='dec', format='D', array=dec)
c3 = pyfits.Column(name='value', format='J', array=value)
c4 = pyfits.Column(name='isPatchInner', format='L', array=isPatchInner)
c5 = pyfits.Column(name='isTractInner', format='L', array=isTractInner)
tbhdu = pyfits.BinTableHDU.from_columns([c1, c2, c3, c4, c5])
tbhdu.writeto('ran.fits', clobber=True)
return
def idListGenerator(self, cache, dataRefList, selectDataList=[]):
"""! Get a generator of difference images from the selectDataList
"""
skyInfo = getSkyInfo(coaddName=self.config.coaddName,
patchRef=dataRefList[0])
diffExpRefList = self.selectExposures(dataRefList[0],
skyInfo,
selectDataList=selectDataList)
for dataRef in diffExpRefList:
try:
exp = dataRef.get(f"{self.config.coaddName}Diff_differenceExp")
src = dataRef.get(f"{self.config.coaddName}Diff_diaSrc")
except Exception as e:
self.log.debug(
'Cannot read data for %d %d. skipping %s' %
(dataRef.dataId['visit'], dataRef.dataId['ccd'], e))
continue
data = Struct(visit=dataRef.dataId['visit'],
ccd=dataRef.dataId[self.config.ccdKey],
filter=dataRef.dataId['filter'],
exp=exp,
src=src)
yield data
def run(self, dataRef):
self.log.info("Processing %s" % (dataRef.dataId))
# initialize
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=dataRef)
coadd = dataRef.get(self.config.coaddName + "Coadd")
wcs = coadd.getWcs()
xy0 = coadd.getXY0()
mask = coadd.getMaskedImage().getMask()
dim = mask.getDimensions()
mask_array = mask.getArray()
ra = [0.0] * self.config.N
dec = [0.0] * self.config.N
value = [0] * self.config.N
isPatchInner = [True] * self.config.N
isTractInner = [True] * self.config.N
for i in range(self.config.N):
ra[i], dec[i], value[i], isPatchInner[i], isTractInner[
i] = self.drawOnePoint(mask_array, dim, wcs, xy0, skyInfo)
c1 = pyfits.Column(name='ra', format='D', array=ra)
c2 = pyfits.Column(name='dec', format='D', array=dec)
c3 = pyfits.Column(name='value', format='J', array=value)
c4 = pyfits.Column(name='isPatchInner', format='L', array=isPatchInner)
c5 = pyfits.Column(name='isTractInner', format='L', array=isTractInner)
tbhdu = pyfits.BinTableHDU.from_columns([c1, c2, c3, c4, c5])
tbhdu.writeto('ran.fits', clobber=True)
return
def mergeCatalogs(self, catalogs, patchRef):
"""!
\brief Merge multiple catalogs.
After ordering the catalogs and filters in priority order,
\ref getMergedSourceCatalog of the \ref FootprintMergeList_ "FootprintMergeList" created by
\ref \_\_init\_\_ is used to perform the actual merging. Finally, \ref cullPeaks is used to remove
garbage peaks detected around bright objects.
\param[in] catalogs
\param[in] patchRef
\param[out] mergedList
"""
# print("test")
# Convert distance to tract coordinate
skyInfo = getSkyInfo(coaddName=self.config.coaddName,
patchRef=patchRef)
tractWcs = skyInfo.wcs
peakDistance = self.config.minNewPeak / tractWcs.getPixelScale(
).asArcseconds()
samePeakDistance = self.config.maxSamePeak / tractWcs.getPixelScale(
).asArcseconds()
# Put catalogs, filters in priority order
orderedCatalogs = [
catalogs[band] for band in self.config.priorityList
if band in catalogs.keys()
]
orderedBands = [
getShortFilterName(band) for band in self.config.priorityList
if band in catalogs.keys()
]
mergedList = self.merged.getMergedSourceCatalog(
orderedCatalogs, orderedBands, peakDistance, self.schema,
self.makeIdFactory(patchRef), samePeakDistance)
#
# Add extra sources that correspond to blank sky
#
skySeed = patchRef.get(self.config.coaddName + "MergedCoaddId")
skySourceFootprints = self.getSkySourceFootprints(
mergedList, skyInfo, skySeed)
if skySourceFootprints:
key = mergedList.schema.find("merge_footprint_%s" %
self.config.skyFilterName).key
for foot in skySourceFootprints:
s = mergedList.addNew()
s.setFootprint(foot)
s.set(key, True)
# pick only the first nObjects merged sources (default:100)
self.log.info("DEBUGGING: Keep {} sources".format(
self.config.nObjects))
mergedList = mergedList[:self.config.nObjects]
# Sort Peaks from brightest to faintest
for record in mergedList:
record.getFootprint().sortPeaks()
self.log.info("Merged to %d sources" % len(mergedList))
# Attempt to remove garbage peaks
self.cullPeaks(mergedList)
return mergedList
def runAssociation(self, cache, dataIdList, selectDataList):
"""! Run association on a patch
For all of the visits that overlap this patch in the band create a DIAObject
catalog. Only the objects in the non-overlaping area of the tract and patch
are included.
"""
dataRefList = [
getDataRef(cache.butler, dataId,
self.config.coaddName + "Coadd_calexp")
for dataId in dataIdList
]
# We need the WCS for the patch, so we can use the first entry in the dataIdList
dataRef = dataRefList[0]
tract = dataRef.dataId['tract']
skyInfo = getSkyInfo(coaddName=self.config.coaddName, patchRef=dataRef)
skyMap = skyInfo.skyMap
try:
calexp = dataRef.get(f"{self.config.coaddName}Coadd_calexp")
except Exception:
self.log.info('Cannot read coadd data for %s' % (dataRef.dataId))
return
coaddWcs = calexp.getWcs()
innerPatchBox = geom.Box2D(skyInfo.patchInfo.getInnerBBox())
expBits = dataRef.get("deepMergedCoaddId_bits")
expId = int(dataRef.get("deepMergedCoaddId"))
idFactory = afwTable.IdFactory.makeSource(expId, 64 - expBits)
if len(selectDataList) == 0:
differenceImages = self.catalogGenerator
else:
differenceImages = self.idListGenerator
initializeSelector = False
for diffIm in differenceImages(cache, dataRefList, selectDataList):
if initializeSelector is False:
self.associator.initialize(diffIm.src.schema, idFactory)
initializeSelector = True
if len(diffIm.src) == 0:
continue
srcWcs = diffIm.exp.getWcs()
isInside = np.array([
innerPatchBox.contains(
coaddWcs.skyToPixel(srcWcs.pixelToSky(a.getCentroid())))
for a in diffIm.src
],
dtype=bool)
isGood = np.array([
rec.getFootprint().contains(geom.Point2I(rec.getCentroid()))
for rec in diffIm.src
], )
isInnerTract = np.array([
skyMap.findTract(srcWcs.pixelToSky(
a.getCentroid())).getId() == tract for a in diffIm.src
])
mask = (isInside) & (isGood) & (isInnerTract)
src = diffIm.src[mask]
if len(src) == 0:
continue
self.log.info(
'Reading difference image %d %d, %s with %d possible sources' %
(diffIm.visit, diffIm.ccd, diffIm.filter, len(src)))
footprints = []
region = calexp.getBBox(afwImage.PARENT)
for ii, rec in enumerate(src):
# transformations on large footprints can take a long time
# We truncate the footprint since we will rarely be interested
# in such large footprints
if rec.getFootprint().getArea() > self.config.maxFootprintArea:
spans = afwGeom.SpanSet.fromShape(
self.config.defaultFootprintRadius,
afwGeom.Stencil.CIRCLE,
geom.Point2I(rec.getCentroid()))
foot = afwDet.Footprint(spans)
foot.addPeak(int(rec.getX()), int(rec.getY()), 1)
else:
foot = rec.getFootprint()
footprints.append(foot.transform(srcWcs, coaddWcs, region))
self.associator.addCatalog(src, diffIm.filter, diffIm.visit,
diffIm.ccd, diffIm.calib, footprints)
result = self.associator.finalize(idFactory)
if len(dataRefList) > 0 and result is not None:
dataRefList[0].put(result,
self.config.coaddName + 'Diff_diaObject')
self.log.info('Total objects found %d' % len(result))
idCatalog = self.associator.getObjectIds()
dataRefList[0].put(idCatalog,
self.config.coaddName + 'Diff_diaObjectId')
def load_model(self, model_repository=None, filter_name='g', doWarp=False):
"""Depersist a DCR model from a repository and set up the metadata.
Parameters
----------
model_repository : None, optional
Full path to the directory of the repository to load the ``dcrCoadd`` from.
If not set, uses the existing self.butler
filter_name : str, optional
Common name of the filter used. For LSST, use u, g, r, i, z, or y
doWarp : bool, optional
Set if the input coadds need to be warped to the reference wcs.
Returns
------------------
None, but loads self.model and sets up all the needed quantities such as the psf and bandpass objects.
"""
self.filter_name = filter_name
model_arr = []
dcrCoadd_gen = self.read_exposures(datasetType="dcrCoadd", input_repository=model_repository)
for dcrCoadd in dcrCoadd_gen:
if doWarp:
wrap_warpExposure(dcrCoadd, self.wcs, self.bbox)
model_in = dcrCoadd.getMaskedImage().getImage().getArray()
var_in = dcrCoadd.getMaskedImage().getVariance().getArray()
mask_in = dcrCoadd.getMaskedImage().getMask().getArray()
model_use, var_use, mask_use = _resize_image(model_in, var_in, mask_in, bbox_new=self.bbox,
bbox_old=dcrCoadd.getBBox(), expand=False)
model_arr.append(model_use)
self.model = model_arr
self.n_step = len(self.model)
# The weights should be identical for all subfilters.
self.weights = np.zeros_like(var_use)
nonzero_inds = var_use > 0
self.weights[nonzero_inds] = 1./var_use[nonzero_inds]
# self.weights = var_use*self.n_step
# The masks should be identical for all subfilters
self.mask = mask_use
skyInfo = coaddBase.getSkyInfo("dcr", self.makeDataRef("dcrCoadd", subfilter=0))
self.skyMap = skyInfo.skyMap
self.wcs = dcrCoadd.getWcs()
self.bbox = skyInfo.patchInfo.getInnerBBox()
x_size, y_size = self.bbox.getDimensions()
self.n_step = len(self.model)
self.x_size = x_size
self.y_size = y_size
self.pixel_scale = self.wcs.getPixelScale()
self.exposure_time = dcrCoadd.getInfo().getVisitInfo().getExposureTime()
self.observatory = dcrCoadd.getInfo().getVisitInfo().getObservatory()
bandpass_init = self.load_bandpass(filter_name=filter_name)
wavelength_step = (bandpass_init.wavelen_max - bandpass_init.wavelen_min) / self.n_step
self.bandpass = self.load_bandpass(filter_name=filter_name, wavelength_step=wavelength_step)
self.bandpass_highres = self.load_bandpass(filter_name=filter_name, wavelength_step=None)
self.psf = dcrCoadd.getPsf()
psf_avg = self.psf.computeKernelImage().getArray()
self.psf_size = psf_avg.shape[0]
self.debug = False
