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def | getExecutionOrder (cls) |
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def | __init__ (self, config, name, schemaMapper, metadata) |
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def | measure (self, measRecord, exposure, refRecord, refWcs) |
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def | measureN (self, measCat, exposure, refCat, refWcs) |
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def | getLogName (self) |
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def | fail (self, measRecord, error=None) |
| Record a failure of the measure or measureN() method. More...
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A centroid pseudo-algorithm for forced measurement that simply transforms the centroid
from the reference catalog to the measurement coordinate system. This is used as
the slot centroid by default in forced measurement, allowing subsequent measurements
to simply refer to the slot value just as they would in single-frame measurement.
Definition at line 429 of file plugins.py.
def lsst.meas.base.pluginsBase.BasePlugin.fail |
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self, |
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measRecord, |
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error = None |
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inherited |
Record a failure of the measure or measureN() method.
When the plugin raises an exception, framework will call fail() to allow the plugin to set its failure flag field(s). When measureN() raises an exception, fail() will be called repeatedly with all the records that were being measured.
If the exception is a MeasurementError, it will be passed as the error argument; in all other cases the error argument will be None, and the failure will be logged by the measurement framework as a warning.
Definition at line 95 of file pluginsBase.py.
def lsst.meas.base.pluginsBase.BasePlugin.getTransformClass |
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Get the measurement transformation appropriate to this plugin.
This returns a subclass of MeasurementTransform, which may be instantiated with details of the algorithm configuration and then called with information about calibration and WCS to convert from raw measurement quantities to calibrated units. Calibrated data is then provided in a separate output table.
By default, we copy everything from the input to the output without transformation.
Definition at line 117 of file pluginsBase.py.
def lsst.meas.base.forcedMeasurement.ForcedPlugin.measureN |
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self, |
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measCat, |
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exposure, |
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refCat, |
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refWcs |
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Measure the properties of a group of blended sources on a single image,
given data from a reference record.
@param[in] exposure lsst.afw.image.ExposureF, containing the pixel data to
be measured and the associated Psf, Wcs, etc. Sources
not in the blended hierarchy to be measured will have
been replaced with noise using deblender outputs.
@param[in,out] measCat lsst.afw.table.SourceCatalog to be filled with outputs,
and from which previously-measured quantities can be
retrieved, containing only the sources that should be
measured together in this call.
@param[in] refCat lsst.afw.table.SimpleCatalog that contains additional
parameters to define the fit, as measured elsewhere.
Ordered such that zip(sources, references) may be used.
@param[in] refWcs The coordinate system for the reference catalog values.
An afw.geom.Angle may be passed, indicating that a
local tangent Wcs should be created for each object
using afw.image.makeLocalWcs and the given Angle as
a pixel scale.
In the normal mode of operation, the source centroids will be set to the
WCS-transformed position of the reference object, so plugins that only
require a reference position should not have to access the reference object
at all.
Definition at line 115 of file forcedMeasurement.py.