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
forcedMeasurement.py
Go to the documentation of this file.
1 # This file is part of meas_base.
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4 # This product includes software developed by the LSST Project
5 # (https://www.lsst.org).
6 # See the COPYRIGHT file at the top-level directory of this distribution
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20 # along with this program. If not, see <https://www.gnu.org/licenses/>.
21 
22 r"""Base classes for forced measurement plugins and the driver task for these.
23 
24 In forced measurement, a reference catalog is used to define restricted
25 measurements (usually just fluxes) on an image. As the reference catalog may
26 be deeper than the detection limit of the measurement image, we do not assume
27 that we can use detection and deblend information from the measurement image.
28 Instead, we assume this information is present in the reference catalog and
29 can be "transformed" in some sense to the measurement frame. At the very
30 least, this means that `~lsst.afw.detection.Footprint`\ s from the reference
31 catalog should be transformed and installed as Footprints in the output
32 measurement catalog. If we have a procedure that can transform "heavy"
33 Footprints (ie, including pixel data), we can then proceed with measurement as
34 usual, but using the reference catalog's ``id`` and ``parent`` fields to
35 define deblend families. If this transformation does not preserve
36 heavy Footprints (this is currently the case, at least for CCD forced
37 photometry), then we will only be able to replace objects with noise one
38 deblend family at a time, and hence measurements run in single-object mode may
39 be contaminated by neighbors when run on objects with ``parent != 0``.
40 
41 Measurements are generally recorded in the coordinate system of the image
42 being measured (and all slot-eligible fields must be), but non-slot fields may
43 be recorded in other coordinate systems if necessary to avoid information loss
44 (this should, of course, be indicated in the field documentation). Note that
45 the reference catalog may be in a different coordinate system; it is the
46 responsibility of plugins to transform the data they need themselves, using
47 the reference WCS provided. However, for plugins that only require a position
48 or shape, they may simply use output `~lsst.afw.table.SourceCatalog`\'s
49 centroid or shape slots, which will generally be set to the transformed
50 position of the reference object before any other plugins are run, and hence
51 avoid using the reference catalog at all.
52 
53 Command-line driver tasks for forced measurement include
54 `ForcedPhotCcdTask`, and `ForcedPhotCoaddTask`.
55 """
56 
57 import lsst.pex.config
58 import lsst.pipe.base
59 import time
60 
61 from .pluginRegistry import PluginRegistry
62 from .baseMeasurement import (BaseMeasurementPluginConfig, BaseMeasurementPlugin,
63  BaseMeasurementConfig, BaseMeasurementTask)
64 from .noiseReplacer import NoiseReplacer, DummyNoiseReplacer
65 
66 __all__ = ("ForcedPluginConfig", "ForcedPlugin",
67  "ForcedMeasurementConfig", "ForcedMeasurementTask")
68 
69 
71  """Base class for configs of forced measurement plugins."""
72 
73  pass
74 
75 
77  """Base class for forced measurement plugins.
78 
79  Parameters
80  ----------
81  config : `ForcedPlugin.ConfigClass`
82  Configuration for this plugin.
83  name : `str`
84  The string with which the plugin was registered.
85  schemaMapper : `lsst.afw.table.SchemaMapper`
86  A mapping from reference catalog fields to output catalog fields.
87  Output fields should be added to the output schema. While most plugins
88  will not need to map fields from the reference schema, if they do so,
89  those fields will be transferred before any plugins are run.
90  metadata : `lsst.daf.base.PropertySet`
91  Plugin metadata that will be attached to the output catalog.
92  logName : `str`, optional
93  Name to use when logging errors.
94  """
95 
96  registry = PluginRegistry(ForcedPluginConfig)
97  """Subclasses of `ForcedPlugin` must be registered here (`PluginRegistry`).
98  """
99 
100  ConfigClass = ForcedPluginConfig
101 
102  def __init__(self, config, name, schemaMapper, metadata, logName=None):
103  BaseMeasurementPlugin.__init__(self, config, name, logName=logName)
104 
105  def measure(self, measRecord, exposure, refRecord, refWcs):
106  """Measure the properties of a source given an image and a reference.
107 
108  Parameters
109  ----------
110  exposure : `lsst.afw.image.ExposureF`
111  The pixel data to be measured, together with the associated PSF,
112  WCS, etc. All other sources in the image should have been replaced
113  by noise according to deblender outputs.
114  measRecord : `lsst.afw.table.SourceRecord`
115  Record describing the object being measured. Previously-measured
116  quantities will be retrieved from here, and it will be updated
117  in-place with the outputs of this plugin.
118  refRecord : `lsst.afw.table.SimpleRecord`
119  Additional parameters to define the fit, as measured elsewhere.
120  refWcs : `lsst.afw.geom.SkyWcs` or `lsst.afw.geom.Angle`
121  The coordinate system for the reference catalog values. An
122  `~lsst.geom.Angle` may be passed, indicating that a local tangent
123  WCS should be created for each object using the given angle as a
124  pixel scale.
125 
126  Notes
127  -----
128  In the normal mode of operation, the source centroid will be set to
129  the WCS-transformed position of the reference object, so plugins that
130  only require a reference position should not have to access the
131  reference object at all.
132  """
133  raise NotImplementedError()
134 
135  def measureN(self, measCat, exposure, refCat, refWcs):
136  """Measure the properties of blended sources from image & reference.
137 
138  This operates on all members of a blend family at once.
139 
140  Parameters
141  ----------
142  exposure : `lsst.afw.image.ExposureF`
143  The pixel data to be measured, together with the associated PSF,
144  WCS, etc. Sources not in the blended hierarchy to be measured
145  should have been replaced with noise using deblender outputs.
146  measCat : `lsst.afw.table.SourceCatalog`
147  Catalog describing the objects (and only those objects) being
148  measured. Previously-measured quantities will be retrieved from
149  here, and it will be updated in-place with the outputs of this
150  plugin.
151  refCat : `lsst.afw.table.SimpleCatalog`
152  Additional parameters to define the fit, as measured elsewhere.
153  Ordered such that ``zip(measCat, refcat)`` may be used.
154  refWcs : `lsst.afw.geom.SkyWcs` or `lsst.afw.geom.Angle`
155  The coordinate system for the reference catalog values. An
156  `~lsst.geom.Angle` may be passed, indicating that a local tangent
157  WCS should be created for each object using the given angle as a
158  pixel scale.
159 
160  Notes
161  -----
162  In the normal mode of operation, the source centroids will be set to
163  the WCS-transformed position of the reference object, so plugins that
164  only require a reference position should not have to access the
165  reference object at all.
166  """
167  raise NotImplementedError()
168 
169 
171  """Config class for forced measurement driver task.
172  """
173 
174  plugins = ForcedPlugin.registry.makeField(
175  multi=True,
176  default=["base_PixelFlags",
177  "base_TransformedCentroid",
178  "base_SdssCentroid",
179  "base_TransformedShape",
180  "base_SdssShape",
181  "base_GaussianFlux",
182  "base_CircularApertureFlux",
183  "base_PsfFlux",
184  "base_LocalBackground",
185  ],
186  doc="Plugins to be run and their configuration"
187  )
188  algorithms = property(lambda self: self.pluginsplugins, doc="backwards-compatibility alias for plugins")
189  undeblended = ForcedPlugin.registry.makeField(
190  multi=True,
191  default=[],
192  doc="Plugins to run on undeblended image"
193  )
195  keytype=str, itemtype=str, doc="Mapping of reference columns to source columns",
196  default={"id": "objectId", "parent": "parentObjectId", "deblend_nChild": "deblend_nChild",
197  "coord_ra": "coord_ra", "coord_dec": "coord_dec"}
198  )
199  checkUnitsParseStrict = lsst.pex.config.Field(
200  doc="Strictness of Astropy unit compatibility check, can be 'raise', 'warn' or 'silent'",
201  dtype=str,
202  default="raise",
203  )
204  loggingInterval = lsst.pex.config.Field(
205  dtype=int,
206  default=600,
207  doc="Interval (in seconds) to log messages (at VERBOSE level) while running measurement plugins."
208  )
209 
210  def setDefaults(self):
211  self.slotsslots.centroid = "base_TransformedCentroid"
212  self.slotsslots.shape = "base_TransformedShape"
213  self.slotsslots.apFlux = None
214  self.slotsslots.modelFlux = None
215  self.slotsslots.psfFlux = None
216  self.slotsslots.gaussianFlux = None
217  self.slotsslots.calibFlux = None
218 
219 
221  """Measure sources on an image, constrained by a reference catalog.
222 
223  A subtask for measuring the properties of sources on a single image,
224  using an existing "reference" catalog to constrain some aspects of the
225  measurement.
226 
227  Parameters
228  ----------
229  refSchema : `lsst.afw.table.Schema`
230  Schema of the reference catalog. Must match the catalog later passed
231  to 'ForcedMeasurementTask.generateMeasCat` and/or
232  `ForcedMeasurementTask.run`.
233  algMetadata : `lsst.daf.base.PropertyList` or `None`
234  Will be updated in place to to record information about each
235  algorithm. An empty `~lsst.daf.base.PropertyList` will be created if
236  `None`.
237  **kwds
238  Keyword arguments are passed to the supertask constructor.
239 
240  Notes
241  -----
242  Note that while `SingleFrameMeasurementTask` is passed an initial
243  `~lsst.afw.table.Schema` that is appended to in order to create the output
244  `~lsst.afw.table.Schema`, `ForcedMeasurementTask` is initialized with the
245  `~lsst.afw.table.Schema` of the reference catalog, from which a new
246  `~lsst.afw.table.Schema` for the output catalog is created. Fields to be
247  copied directly from the reference `~lsst.afw.table.Schema` are added
248  before ``Plugin`` fields are added.
249  """
250 
251  ConfigClass = ForcedMeasurementConfig
252 
253  def __init__(self, refSchema, algMetadata=None, **kwds):
254  super(ForcedMeasurementTask, self).__init__(algMetadata=algMetadata, **kwds)
255  self.mappermapper = lsst.afw.table.SchemaMapper(refSchema)
256  self.mappermapper.addMinimalSchema(lsst.afw.table.SourceTable.makeMinimalSchema(), False)
257  self.config.slots.setupSchema(self.mappermapper.editOutputSchema())
258  for refName, targetName in self.config.copyColumns.items():
259  refItem = refSchema.find(refName)
260  self.mappermapper.addMapping(refItem.key, targetName)
261  self.config.slots.setupSchema(self.mappermapper.editOutputSchema())
262  self.initializePluginsinitializePlugins(schemaMapper=self.mappermapper)
263  self.schemaschema = self.mappermapper.getOutputSchema()
264  self.schemaschema.checkUnits(parse_strict=self.config.checkUnitsParseStrict)
265 
266  def run(self, measCat, exposure, refCat, refWcs, exposureId=None, beginOrder=None, endOrder=None):
267  r"""Perform forced measurement.
268 
269  Parameters
270  ----------
271  exposure : `lsst.afw.image.exposureF`
272  Image to be measured. Must have at least a `lsst.afw.geom.SkyWcs`
273  attached.
274  measCat : `lsst.afw.table.SourceCatalog`
275  Source catalog for measurement results; must be initialized with
276  empty records already corresponding to those in ``refCat`` (via
277  e.g. `generateMeasCat`).
278  refCat : `lsst.afw.table.SourceCatalog`
279  A sequence of `lsst.afw.table.SourceRecord` objects that provide
280  reference information for the measurement. These will be passed
281  to each plugin in addition to the output
282  `~lsst.afw.table.SourceRecord`.
283  refWcs : `lsst.afw.geom.SkyWcs`
284  Defines the X,Y coordinate system of ``refCat``.
285  exposureId : `int`, optional
286  Optional unique exposureId used to calculate random number
287  generator seed in the NoiseReplacer.
288  beginOrder : `int`, optional
289  Beginning execution order (inclusive). Algorithms with
290  ``executionOrder`` < ``beginOrder`` are not executed. `None` for no limit.
291  endOrder : `int`, optional
292  Ending execution order (exclusive). Algorithms with
293  ``executionOrder`` >= ``endOrder`` are not executed. `None` for no limit.
294 
295  Notes
296  -----
297  Fills the initial empty `~lsst.afw.table.SourceCatalog` with forced
298  measurement results. Two steps must occur before `run` can be called:
299 
300  - `generateMeasCat` must be called to create the output ``measCat``
301  argument.
302  - `~lsst.afw.detection.Footprint`\ s appropriate for the forced sources
303  must be attached to the ``measCat`` records. The
304  `attachTransformedFootprints` method can be used to do this, but
305  this degrades "heavy" (i.e., including pixel values)
306  `~lsst.afw.detection.Footprint`\s to regular
307  `~lsst.afw.detection.Footprint`\s, leading to non-deblended
308  measurement, so most callers should provide
309  `~lsst.afw.detection.Footprint`\s some other way. Typically, calling
310  code will have access to information that will allow them to provide
311  heavy footprints - for instance, `ForcedPhotCoaddTask` uses the
312  heavy footprints from deblending run in the same band just before
313  non-forced is run measurement in that band.
314  """
315  # First check that the reference catalog does not contain any children
316  # for which any member of their parent chain is not within the list.
317  # This can occur at boundaries when the parent is outside and one of
318  # the children is within. Currently, the parent chain is always only
319  # one deep, but just in case, this code checks for any case where when
320  # the parent chain to a child's topmost parent is broken and raises an
321  # exception if it occurs.
322  #
323  # I.e. this code checks that this precondition is satisfied by
324  # whatever reference catalog provider is being paired with it.
325  refCatIdDict = {ref.getId(): ref.getParent() for ref in refCat}
326  for ref in refCat:
327  refId = ref.getId()
328  topId = refId
329  while(topId > 0):
330  if topId not in refCatIdDict:
331  raise RuntimeError("Reference catalog contains a child for which at least "
332  "one parent in its parent chain is not in the catalog.")
333  topId = refCatIdDict[topId]
334 
335  # Construct a footprints dict which looks like
336  # {ref.getId(): (ref.getParent(), source.getFootprint())}
337  # (i.e. getting the footprint from the transformed source footprint)
338  footprints = {ref.getId(): (ref.getParent(), measRecord.getFootprint())
339  for (ref, measRecord) in zip(refCat, measCat)}
340 
341  self.log.info("Performing forced measurement on %d source%s", len(refCat),
342  "" if len(refCat) == 1 else "s")
343  nextLogTime = time.time() + self.config.loggingInterval
344 
345  if self.config.doReplaceWithNoise:
346  noiseReplacer = NoiseReplacer(self.config.noiseReplacer, exposure,
347  footprints, log=self.log, exposureId=exposureId)
348  algMetadata = measCat.getTable().getMetadata()
349  if algMetadata is not None:
350  algMetadata.addInt("NOISE_SEED_MULTIPLIER", self.config.noiseReplacer.noiseSeedMultiplier)
351  algMetadata.addString("NOISE_SOURCE", self.config.noiseReplacer.noiseSource)
352  algMetadata.addDouble("NOISE_OFFSET", self.config.noiseReplacer.noiseOffset)
353  if exposureId is not None:
354  algMetadata.addLong("NOISE_EXPOSURE_ID", exposureId)
355  else:
356  noiseReplacer = DummyNoiseReplacer()
357 
358  # Create parent cat which slices both the refCat and measCat (sources)
359  # first, get the reference and source records which have no parent
360  refParentCat, measParentCat = refCat.getChildren(0, measCat)
361  childrenIter = refCat.getChildren((refParentRecord.getId() for refParentRecord in refCat), measCat)
362  for parentIdx, records in enumerate(zip(refParentCat, measParentCat, childrenIter)):
363  # Unpack records
364  refParentRecord, measParentRecord, (refChildCat, measChildCat) = records
365  # First process the records which have the current parent as children
366  # TODO: skip this loop if there are no plugins configured for single-object mode
367  for refChildRecord, measChildRecord in zip(refChildCat, measChildCat):
368  noiseReplacer.insertSource(refChildRecord.getId())
369  self.callMeasurecallMeasure(measChildRecord, exposure, refChildRecord, refWcs,
370  beginOrder=beginOrder, endOrder=endOrder)
371  noiseReplacer.removeSource(refChildRecord.getId())
372 
373  # Then process the parent record
374  noiseReplacer.insertSource(refParentRecord.getId())
375  self.callMeasurecallMeasure(measParentRecord, exposure, refParentRecord, refWcs,
376  beginOrder=beginOrder, endOrder=endOrder)
377  self.callMeasureNcallMeasureN(measParentCat[parentIdx:parentIdx+1], exposure,
378  refParentCat[parentIdx:parentIdx+1],
379  beginOrder=beginOrder, endOrder=endOrder)
380  # Measure all the children simultaneously
381  self.callMeasureNcallMeasureN(measChildCat, exposure, refChildCat,
382  beginOrder=beginOrder, endOrder=endOrder)
383  noiseReplacer.removeSource(refParentRecord.getId())
384  # Log a message if it has been a while since the last log.
385  if (currentTime := time.time()) > nextLogTime:
386  self.log.verbose("Forced measurement complete for %d parents (and their children) out of %d",
387  parentIdx + 1, len(refParentCat))
388  nextLogTime = currentTime + self.config.loggingInterval
389  noiseReplacer.end()
390 
391  # Undeblended plugins only fire if we're running everything
392  if endOrder is None:
393  for recordIndex, (measRecord, refRecord) in enumerate(zip(measCat, refCat)):
394  for plugin in self.undeblendedPluginsundeblendedPlugins.iter():
395  self.doMeasurementdoMeasurement(plugin, measRecord, exposure, refRecord, refWcs)
396  if (currentTime := time.time()) > nextLogTime:
397  self.log.verbose("Undeblended forced measurement complete for %d sources out of %d",
398  recordIndex + 1, len(refCat))
399  nextLogTime = currentTime + self.config.loggingInterval
400 
401  def generateMeasCat(self, exposure, refCat, refWcs, idFactory=None):
402  r"""Initialize an output catalog from the reference catalog.
403 
404  Parameters
405  ----------
406  exposure : `lsst.afw.image.exposureF`
407  Image to be measured.
408  refCat : iterable of `lsst.afw.table.SourceRecord`
409  Catalog of reference sources.
410  refWcs : `lsst.afw.geom.SkyWcs`
411  Defines the X,Y coordinate system of ``refCat``.
412  idFactory : `lsst.afw.table.IdFactory`, optional
413  Factory for creating IDs for sources.
414 
415  Returns
416  -------
417  meascat : `lsst.afw.table.SourceCatalog`
418  Source catalog ready for measurement.
419 
420  Notes
421  -----
422  This generates a new blank `~lsst.afw.table.SourceRecord` for each
423  record in ``refCat``. Note that this method does not attach any
424  `~lsst.afw.detection.Footprint`\ s. Doing so is up to the caller (who
425  may call `attachedTransformedFootprints` or define their own method -
426  see `run` for more information).
427  """
428  if idFactory is None:
430  table = lsst.afw.table.SourceTable.make(self.schemaschema, idFactory)
431  measCat = lsst.afw.table.SourceCatalog(table)
432  table = measCat.table
433  table.setMetadata(self.algMetadataalgMetadata)
434  table.preallocate(len(refCat))
435  for ref in refCat:
436  newSource = measCat.addNew()
437  newSource.assign(ref, self.mappermapper)
438  return measCat
439 
440  def attachTransformedFootprints(self, sources, refCat, exposure, refWcs):
441  r"""Attach Footprints to blank sources prior to measurement, by
442  transforming Footprints attached to the reference catalog.
443 
444  Notes
445  -----
446  `~lsst.afw.detection.Footprint`\s for forced photometry must be in the
447  pixel coordinate system of the image being measured, while the actual
448  detections may start out in a different coordinate system. This
449  default implementation transforms the Footprints from the reference
450  catalog from the WCS to the exposure's WCS, which downgrades
451  ``HeavyFootprint``\s into regular `~lsst.afw.detection.Footprint`\s,
452  destroying deblend information.
453 
454  See the documentation for `run` for information about the
455  relationships between `run`, `generateMeasCat`, and
456  `attachTransformedFootprints`.
457  """
458  exposureWcs = exposure.getWcs()
459  region = exposure.getBBox(lsst.afw.image.PARENT)
460  for srcRecord, refRecord in zip(sources, refCat):
461  srcRecord.setFootprint(refRecord.getFootprint().transform(refWcs, exposureWcs, region))
462 
463  def attachPsfShapeFootprints(self, sources, exposure, scaling=3):
464  """Attach Footprints to blank sources prior to measurement, by
465  creating elliptical Footprints from the PSF moments.
466 
467  Parameters
468  ----------
469  sources : `lsst.afw.table.SourceCatalog`
470  Blank catalog (with all rows and columns, but values other than
471  ``coord_ra``, ``coord_dec`` unpopulated).
472  to which footprints should be attached.
473  exposure : `lsst.afw.image.Exposure`
474  Image object from which peak values and the PSF are obtained.
475  scaling : `int`, optional
476  Scaling factor to apply to the PSF second-moments ellipse in order
477  to determine the footprint boundary.
478 
479  Notes
480  -----
481  This is a utility function for use by parent tasks; see
482  `attachTransformedFootprints` for more information.
483  """
484  psf = exposure.getPsf()
485  if psf is None:
486  raise RuntimeError("Cannot construct Footprints from PSF shape without a PSF.")
487  bbox = exposure.getBBox()
488  wcs = exposure.getWcs()
489  for record in sources:
490  localPoint = wcs.skyToPixel(record.getCoord())
491  localIntPoint = lsst.geom.Point2I(localPoint)
492  assert bbox.contains(localIntPoint), (
493  f"Center for record {record.getId()} is not in exposure; this should be guaranteed by "
494  "generateMeasCat."
495  )
496  ellipse = lsst.afw.geom.ellipses.Ellipse(psf.computeShape(localPoint), localPoint)
497  ellipse.getCore().scale(scaling)
498  spans = lsst.afw.geom.SpanSet.fromShape(ellipse)
499  footprint = lsst.afw.detection.Footprint(spans.clippedTo(bbox), bbox)
500  footprint.addPeak(localIntPoint.getX(), localIntPoint.getY(),
501  exposure.image._get(localIntPoint, lsst.afw.image.PARENT))
502  record.setFootprint(footprint)
Class to describe the properties of a detected object from an image.
Definition: Footprint.h:63
static std::shared_ptr< geom::SpanSet > fromShape(int r, Stencil s=Stencil::CIRCLE, lsst::geom::Point2I offset=lsst::geom::Point2I())
Factory function for creating SpanSets from a Stencil.
Definition: SpanSet.cc:688
An ellipse defined by an arbitrary BaseCore and a center point.
Definition: Ellipse.h:51
static std::shared_ptr< IdFactory > makeSimple()
Return a simple IdFactory that simply counts from 1.
Definition: IdFactory.cc:70
A mapping between the keys of two Schemas, used to copy data between them.
Definition: SchemaMapper.h:21
static std::shared_ptr< SourceTable > make(Schema const &schema, std::shared_ptr< IdFactory > const &idFactory)
Construct a new table.
Definition: Source.cc:382
static Schema makeMinimalSchema()
Return a minimal schema for Source tables and records.
Definition: Source.h:258
def doMeasurement(self, plugin, measRecord, *args, **kwds)
def callMeasure(self, measRecord, *args, **kwds)
def callMeasureN(self, measCat, *args, **kwds)
def attachTransformedFootprints(self, sources, refCat, exposure, refWcs)
def __init__(self, refSchema, algMetadata=None, **kwds)
def run(self, measCat, exposure, refCat, refWcs, exposureId=None, beginOrder=None, endOrder=None)
def generateMeasCat(self, exposure, refCat, refWcs, idFactory=None)
def attachPsfShapeFootprints(self, sources, exposure, scaling=3)
def measureN(self, measCat, exposure, refCat, refWcs)
def measure(self, measRecord, exposure, refRecord, refWcs)
def __init__(self, config, name, schemaMapper, metadata, logName=None)
def scale(algorithm, min, max=None, frame=None)
Definition: ds9.py:108