lsst.meas.base  20.0.0-3-g750bffe+f7c3f762b4
Public Member Functions | Static Public Member Functions | Public Attributes | Static Public Attributes | List of all members
lsst.meas.base.plugins.EvaluateLocalWcsPlugin Class Reference
Inheritance diagram for lsst.meas.base.plugins.EvaluateLocalWcsPlugin:
lsst.meas.base.wrappers.GenericPlugin lsst.meas.base.pluginsBase.BasePlugin

Public Member Functions

def getExecutionOrder (cls)
 
def __init__ (self, config, name, schema, metadata)
 
def measure (self, measRecord, exposure, center)
 
def makeLocalTransformMatrix (self, wcs, center)
 
def measureN (self, measCat, exposure, refCat, refWcs)
 
def fail (self, measRecord, error=None)
 
def makeSingleFramePlugin (cls, name)
 
def makeForcedPlugin (cls, name)
 
def getLogName (self)
 

Static Public Member Functions

def getTransformClass ()
 

Public Attributes

 cdMatrix11Key
 
 cdMatrix12Key
 
 cdMatrix21Key
 
 cdMatrix22Key
 
 config
 
 name
 
 logName
 

Static Public Attributes

 ConfigClass = EvaluateLocalWcsPluginConfig
 
float CENTROID_ORDER = 0.0
 
float SHAPE_ORDER = 1.0
 
float FLUX_ORDER = 2.0
 
float APCORR_ORDER = 3.0
 
float DEFAULT_CATALOGCALCULATION = 4.0
 

Detailed Description

Evaluate the local, linear approximation of the Wcs.

The aim is to store the local calib value within the catalog for later
use in the Science Data Model functors.

Definition at line 463 of file plugins.py.

Constructor & Destructor Documentation

◆ __init__()

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

Definition at line 476 of file plugins.py.

Member Function Documentation

◆ fail()

def lsst.meas.base.wrappers.GenericPlugin.fail (   self,
  measRecord,
  error = None 
)
inherited
Record a measurement failure.

This default implementation simply records the failure in the source
record.

Parameters
----------
measRecord : `lsst.afw.table.SourceRecord`
    Catalog record for the source being measured.
error : `Exception`
    Error causing failure, or `None`.

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

Reimplemented in lsst.meas.base.plugins.InputCountPlugin, and lsst.meas.base.plugins.VariancePlugin.

Definition at line 566 of file wrappers.py.

◆ getExecutionOrder()

def lsst.meas.base.plugins.EvaluateLocalWcsPlugin.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.wrappers.GenericPlugin.

Definition at line 473 of file plugins.py.

◆ getLogName()

def lsst.meas.base.pluginsBase.BasePlugin.getLogName (   self)
inherited

Definition at line 134 of file pluginsBase.py.

◆ getTransformClass()

def lsst.meas.base.pluginsBase.BasePlugin.getTransformClass ( )
staticinherited
Get the measurement transformation appropriate to this plugin.

This returns a subclass of `transforms.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.

Notes
-----
By default, we copy everything from the input to the output without
transformation.

Reimplemented in lsst.meas.base.plugins.ForcedPeakCentroidPlugin, and lsst.meas.base.plugins.SingleFramePeakCentroidPlugin.

Definition at line 169 of file pluginsBase.py.

◆ makeForcedPlugin()

def lsst.meas.base.wrappers.GenericPlugin.makeForcedPlugin (   cls,
  name 
)
inherited
Produce a ForcedPlugin subclass from this GenericPlugin class.

The class is also registered.

Parameters
----------
name : `str`
    Name of plugin to register.

Definition at line 623 of file wrappers.py.

◆ makeLocalTransformMatrix()

def lsst.meas.base.plugins.EvaluateLocalWcsPlugin.makeLocalTransformMatrix (   self,
  wcs,
  center 
)
Create a local, linear approximation of the wcs transformation
matrix.

The approximation is created as if the center is at RA=0, DEC=0. All
comparing x,y coordinate are relative to the position of center. Matrix
is initially calculated with units arcseconds and then converted to
radians. This yields higher precision results due to quirks in AST.

Parameters
----------
wcs : `lsst.afw.geom.SkyWcs`
    Wcs to approximate
center : `lsst.geom.Point2D`
    Point at which to evaluate the LocalWcs.

Returns
-------
localMatrix : `numpy.ndarray`
    Matrix representation the local wcs approximation with units
    radians.

Definition at line 507 of file plugins.py.

◆ makeSingleFramePlugin()

def lsst.meas.base.wrappers.GenericPlugin.makeSingleFramePlugin (   cls,
  name 
)
inherited
Produce a SingleFramePlugin subclass from this GenericPlugin class.

The class is also registered.

Parameters
----------
name : `str`
    Name of plugin to register.

Definition at line 582 of file wrappers.py.

◆ measure()

def lsst.meas.base.plugins.EvaluateLocalWcsPlugin.measure (   self,
  measRecord,
  exposure,
  center 
)
Measure a single source.

It is the responsibility of this method to perform the desired
measurement and record the result in the `measRecord`.

Parameters
----------
measRecord : `lsst.afw.table.SourceRecord`
    Catalog record for the source being measured.
exposure : `lsst.afw.image.Exposure`
    Exposure on which the source is being measured.
center : `lsst.geom.Point2D`
    Pixel coordinates of the object.

Raises
------
MeasurementError
    Raised if the measurement fails for a known/justifiable reason.

Reimplemented from lsst.meas.base.wrappers.GenericPlugin.

Definition at line 499 of file plugins.py.

◆ measureN()

def lsst.meas.base.wrappers.GenericPlugin.measureN (   self,
  measCat,
  exposure,
  refCat,
  refWcs 
)
inherited
Measure multiple sources.

It is the responsibility of this method to perform the desired
measurement and record the result in the `measCat`.

Parameters
----------
measCat : `lsst.afw.table.SourceCatalog`
    Catalog for the sources being measured.
exposure : `lsst.afw.image.Exposure`
    Exposure on which the source is being measured.
refCat : `lsst.afw.table.SourceCatalog`
    Reference catalog.
refWcs : `lsst.afw.image.Wcs`
    Astrometric solution for the reference image.

Raises
------
MeasurementError
    Raised if the measurement fails for a known/justifiable reason.

Definition at line 542 of file wrappers.py.

Member Data Documentation

◆ APCORR_ORDER

float lsst.meas.base.pluginsBase.BasePlugin.APCORR_ORDER = 3.0
staticinherited

Definition at line 98 of file pluginsBase.py.

◆ cdMatrix11Key

lsst.meas.base.plugins.EvaluateLocalWcsPlugin.cdMatrix11Key

Definition at line 478 of file plugins.py.

◆ cdMatrix12Key

lsst.meas.base.plugins.EvaluateLocalWcsPlugin.cdMatrix12Key

Definition at line 483 of file plugins.py.

◆ cdMatrix21Key

lsst.meas.base.plugins.EvaluateLocalWcsPlugin.cdMatrix21Key

Definition at line 488 of file plugins.py.

◆ cdMatrix22Key

lsst.meas.base.plugins.EvaluateLocalWcsPlugin.cdMatrix22Key

Definition at line 493 of file plugins.py.

◆ CENTROID_ORDER

float lsst.meas.base.pluginsBase.BasePlugin.CENTROID_ORDER = 0.0
staticinherited

Definition at line 72 of file pluginsBase.py.

◆ config

lsst.meas.base.pluginsBase.BasePlugin.config
inherited

Definition at line 130 of file pluginsBase.py.

◆ ConfigClass

lsst.meas.base.plugins.EvaluateLocalWcsPlugin.ConfigClass = EvaluateLocalWcsPluginConfig
static

Definition at line 469 of file plugins.py.

◆ DEFAULT_CATALOGCALCULATION

float lsst.meas.base.pluginsBase.BasePlugin.DEFAULT_CATALOGCALCULATION = 4.0
staticinherited

Definition at line 108 of file pluginsBase.py.

◆ FLUX_ORDER

float lsst.meas.base.pluginsBase.BasePlugin.FLUX_ORDER = 2.0
staticinherited

Definition at line 89 of file pluginsBase.py.

◆ logName

lsst.meas.base.pluginsBase.BasePlugin.logName
inherited

Definition at line 132 of file pluginsBase.py.

◆ name

lsst.meas.base.pluginsBase.BasePlugin.name
inherited

Definition at line 131 of file pluginsBase.py.

◆ SHAPE_ORDER

float lsst.meas.base.pluginsBase.BasePlugin.SHAPE_ORDER = 1.0
staticinherited

Definition at line 80 of file pluginsBase.py.


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