lsst.meas.base g683338f4e5+f029f3177b
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Public Member Functions | Public Attributes | Static Public Attributes | List of all members
lsst.meas.base.plugins.SingleFrameJacobianPlugin Class Reference
Inheritance diagram for lsst.meas.base.plugins.SingleFrameJacobianPlugin:
lsst.meas.base.sfm.SingleFramePlugin lsst.meas.base.baseMeasurement.BaseMeasurementPlugin lsst.meas.base.pluginsBase.BasePlugin

Public Member Functions

def getExecutionOrder (cls)
 
def __init__ (self, config, name, schema, metadata)
 
def measure (self, measRecord, exposure)
 
def fail (self, measRecord, error=None)
 

Public Attributes

 jacValue
 
 jacFlag
 
 scale
 

Static Public Attributes

 ConfigClass = SingleFrameJacobianConfig
 

Detailed Description

Compute the Jacobian and its ratio with a nominal pixel area.

This enables one to compare relative, rather than absolute, pixel areas.

Parameters
----------
config : `SingleFrameJacobianConfig`
    Plugin configuraion.
name : `str`
    Plugin name.
schema : `lsst.afw.table.Schema`
    The schema for the measurement output catalog. New fields will be
    added to hold measurements produced by this plugin.
metadata : `lsst.daf.base.PropertySet`
    Plugin metadata that will be attached to the output catalog

Definition at line 177 of file plugins.py.

Constructor & Destructor Documentation

◆ __init__()

def lsst.meas.base.plugins.SingleFrameJacobianPlugin.__init__ (   self,
  config,
  name,
  schema,
  metadata 
)

Reimplemented from lsst.meas.base.sfm.SingleFramePlugin.

Definition at line 201 of file plugins.py.

Member Function Documentation

◆ fail()

def lsst.meas.base.plugins.SingleFrameJacobianPlugin.fail (   self,
  measRecord,
  error = None 
)
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 from lsst.meas.base.pluginsBase.BasePlugin.

Definition at line 217 of file plugins.py.

◆ getExecutionOrder()

def lsst.meas.base.plugins.SingleFrameJacobianPlugin.getExecutionOrder (   cls)
Get the relative execution order of this plugin.

Must be reimplemented as a class method by concrete derived classes.

Reimplemented from lsst.meas.base.pluginsBase.BasePlugin.

Definition at line 198 of file plugins.py.

◆ measure()

def lsst.meas.base.plugins.SingleFrameJacobianPlugin.measure (   self,
  measRecord,
  exposure 
)
Measure the properties of a source on a single image.

The image may be from a single epoch, or it may be a coadd.

Parameters
----------
measRecord : `lsst.afw.table.SourceRecord`
    Record describing the object being measured. Previously-measured
    quantities may be retrieved from here, and it will be updated
    in-place tih the outputs of this plugin.
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.

Reimplemented from lsst.meas.base.sfm.SingleFramePlugin.

Definition at line 208 of file plugins.py.

Member Data Documentation

◆ ConfigClass

lsst.meas.base.plugins.SingleFrameJacobianPlugin.ConfigClass = SingleFrameJacobianConfig
static

Definition at line 195 of file plugins.py.

◆ jacFlag

lsst.meas.base.plugins.SingleFrameJacobianPlugin.jacFlag

Definition at line 204 of file plugins.py.

◆ jacValue

lsst.meas.base.plugins.SingleFrameJacobianPlugin.jacValue

Definition at line 203 of file plugins.py.

◆ scale

lsst.meas.base.plugins.SingleFrameJacobianPlugin.scale

Definition at line 206 of file plugins.py.


The documentation for this class was generated from the following file: