Record the transformation of the reference catalog shape.
The shape recorded in the reference catalog is tranformed to the
measurement coordinate system and stored.
Parameters
----------
config : `ForcedTransformedShapeConfig`
Plugin configuration
name : `str`
Plugin name
schemaMapper : `lsst.afw.table.SchemaMapper`
A mapping from reference catalog fields to output
catalog fields. Output fields are added to the output schema.
metadata : `lsst.daf.base.PropertySet`
Plugin metadata that will be attached to the output catalog.
Notes
-----
This is used as the slot shape 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 925 of file plugins.py.
| lsst.meas.base.pluginsBase.BasePlugin.fail |
( |
| self, |
|
|
| measRecord, |
|
|
| error = None ) |
|
inherited |
Record a failure of the `measure` or `measureN` method.
Parameters
----------
measRecord : `lsst.afw.table.SourceRecord`
Table record describing the source being measured.
error : `MeasurementError`, optional
Only provided if the measurement failed due to a
`MeasurementError` being raised; otherwise, will be `None`.
Notes
-----
When the plugin raises an exception, framework will call
`BasePlugin.fail` to allow the plugin to set its failure flag
field(s). When `BasePlugin.measureN` raises an exception,
`BasePlugin.fail` will be called repeatedly with all the records that
were being measured.
If the exception is an `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.
Reimplemented in lsst.meas.base.classification.CatalogCalculationClassificationPlugin, lsst.meas.base.compensatedGaussian._compensatedGaussian.SingleFrameCompensatedGaussianFluxPlugin, lsst.meas.base.compensatedGaussian._compensatedTophat.SingleFrameCompensatedTophatFluxPlugin, lsst.meas.base.diaCalculation.DiaObjectCalculationPlugin, lsst.meas.base.footprintArea.CatalogCalculationFootprintAreaPlugin, lsst.meas.base.plugins.InputCountPlugin, lsst.meas.base.plugins.SingleFrameClassificationSizeExtendednessPlugin, lsst.meas.base.plugins.SingleFrameFPPositionPlugin, lsst.meas.base.plugins.SingleFrameJacobianPlugin, lsst.meas.base.plugins.SingleFramePeakCentroidPlugin, lsst.meas.base.plugins.SingleFrameSkyCoordPlugin, lsst.meas.base.plugins.VariancePlugin, lsst.meas.base.wrappers.GenericPlugin, lsst.meas.base.wrappers.WrappedForcedPlugin, and lsst.meas.base.wrappers.WrappedSingleFramePlugin.
Definition at line 137 of file pluginsBase.py.
| lsst.meas.base.plugins.ForcedTransformedShapePlugin.measure |
( |
| self, |
|
|
| measRecord, |
|
|
| exposure, |
|
|
| refRecord, |
|
|
| refWcs ) |
Measure the properties of a source given an image and a reference.
Parameters
----------
exposure : `lsst.afw.image.ExposureF`
The pixel data to be measured, together with the associated PSF,
WCS, etc. All other sources in the image should have been replaced
by noise according to deblender outputs.
measRecord : `lsst.afw.table.SourceRecord`
Record describing the object being measured. Previously-measured
quantities will be retrieved from here, and it will be updated
in-place with the outputs of this plugin.
refRecord : `lsst.afw.table.SimpleRecord`
Additional parameters to define the fit, as measured elsewhere.
refWcs : `lsst.afw.geom.SkyWcs` or `lsst.afw.geom.Angle`
The coordinate system for the reference catalog values. An
`~lsst.geom.Angle` may be passed, indicating that a local tangent
WCS should be created for each object using the given angle as a
pixel scale.
Notes
-----
In the normal mode of operation, the source centroid 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.
Reimplemented from lsst.meas.base.forcedMeasurement.ForcedPlugin.
Definition at line 977 of file plugins.py.
| lsst.meas.base.forcedMeasurement.ForcedPlugin.measureN |
( |
| self, |
|
|
| measCat, |
|
|
| exposure, |
|
|
| refCat, |
|
|
| refWcs ) |
|
inherited |
Measure the properties of blended sources from image & reference.
This operates on all members of a blend family at once.
Parameters
----------
exposure : `lsst.afw.image.ExposureF`
The pixel data to be measured, together with the associated PSF,
WCS, etc. Sources not in the blended hierarchy to be measured
should have been replaced with noise using deblender outputs.
measCat : `lsst.afw.table.SourceCatalog`
Catalog describing the objects (and only those objects) being
measured. Previously-measured quantities will be retrieved from
here, and it will be updated in-place with the outputs of this
plugin.
refCat : `lsst.afw.table.SimpleCatalog`
Additional parameters to define the fit, as measured elsewhere.
Ordered such that ``zip(measCat, refcat)`` may be used.
refWcs : `lsst.afw.geom.SkyWcs` or `lsst.afw.geom.Angle`
The coordinate system for the reference catalog values. An
`~lsst.geom.Angle` may be passed, indicating that a local tangent
WCS should be created for each object using the given angle as a
pixel scale.
Notes
-----
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.
Reimplemented in lsst.meas.base.wrappers.WrappedForcedPlugin.
Definition at line 134 of file forcedMeasurement.py.
1.13.2