astropy:docs

WCSBase

class astropy.wcs.WCSBase

Bases: object

Wcs objects amalgamate basic WCS (as provided by wcslib), with SIP and distortion paper operations.

To perform all distortion corrections and WCS transformation, use all_pix2world.

Parameters:

sip : Sip object or None

cpdis : A pair of DistortionLookupTable objects, or

(None, None).

wcsprm : Wcsprm object

det2im : A pair of DistortionLookupTable objects, or

(None, None).

Attributes Summary

cpdis1 DistortionLookupTable
cpdis2 DistortionLookupTable
det2im1 A DistortionLookupTable object for detector to image plane correction in the x-axis.
det2im2 A DistortionLookupTable object for detector to image plane correction in the y-axis.
sip Get/set the Sip object for performing SIP distortion correction.
wcs A Wcsprm object to perform the basic wcslib WCS transformation.

Attributes Documentation

cpdis1

DistortionLookupTable

The pre-linear transformation distortion lookup table, CPDIS1.

cpdis2

DistortionLookupTable

The pre-linear transformation distortion lookup table, CPDIS2.

det2im1

A DistortionLookupTable object for detector to image plane correction in the x-axis.

det2im2

A DistortionLookupTable object for detector to image plane correction in the y-axis.

sip

Get/set the Sip object for performing SIP distortion correction.

wcs

A Wcsprm object to perform the basic wcslib WCS transformation.

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