Inheritance diagram for lsst.meas.astrom.fit_sip_approximation.FitSipApproximationTask:

Public Member Functions
	run (self, *, wcs, bbox)

Static Public Attributes
	ConfigClass = FitSipApproximationConfig

Static Protected Attributes
str	_DefaultName = "fitSipApproximation"

Detailed Description

A simple convenience wrapper for `lsst.afw.geom.SipApproximation`.

Definition at line 52 of file fit_sip_approximation.py.

Member Function Documentation

◆ run()

lsst.meas.astrom.fit_sip_approximation.FitSipApproximationTask.run	(		self,
		*	,
			wcs,
			bbox )

Re-fit the pointing from the WCSs in a visit.

Parameters
----------
wcs : `lsst.afw.geom.SkyWcs`
    Target WCS to approximate.
bbox : `lsst.geom.Box2I`
    The region where the WCS and its approximation are expected to be
    valid.

Returns
-------
results : `lsst.pipe.base.Struct`
    A struct with the following attributes:

    - ``wcs`` (`lsst.afw.geom.SkyWcs`): a copy of the input ``wcs``
      with a SIP approximation attached.
    - ``delta_sky`` (`lsst.geom.Angle`): maximum separation in
      ``pixelToSky`` values on a grid offset from the one used for the
      fit.
    - ``delta_pixel`` (`float`): maximum separation in ``skyToPixel``
      values on a grid offset from the one used for the fit.

Definition at line 59 of file fit_sip_approximation.py.

Member Data Documentation

◆ _DefaultName

str lsst.meas.astrom.fit_sip_approximation.FitSipApproximationTask._DefaultName = "fitSipApproximation"

staticprotected

Definition at line 56 of file fit_sip_approximation.py.

◆ ConfigClass

lsst.meas.astrom.fit_sip_approximation.FitSipApproximationTask.ConfigClass = FitSipApproximationConfig

static

Definition at line 57 of file fit_sip_approximation.py.

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

python/lsst/meas/astrom/fit_sip_approximation.py

Public Member Functions