TransformedSkyWcsMaker¶
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class
lsst.meas.astrom.
TransformedSkyWcsMaker
(inputSkyWcs)¶ Bases:
object
Convenience class for appending a shifting an input SkyWcs on sky and appending an affine transform.
The class assumes that all frames are sequential and are mapped one to the next.
Parameters: - input_sky_wcs :
lsst.afw.geom.SkyWcs
WCS to decompose and append affine matrix and shift in on sky location to.
Methods Summary
makeWcs
(crvalOffset, affMatrix)Apply a shift and affine transform to the WCS internal to this class. Methods Documentation
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makeWcs
(crvalOffset, affMatrix)¶ Apply a shift and affine transform to the WCS internal to this class.
A new SkyWcs with these transforms applied is returns.
Parameters: - crval_shift :
numpy.ndarray
, (2,) Shift in radians to apply to the Wcs origin/crvals.
- aff_matrix : ‘numpy.ndarray’, (3, 3)
Affine matrix to apply to the mapping/transform to add to the WCS.
Returns: - outputWcs :
lsst.afw.geom.SkyWcs
Wcs with a final shift and affine transform applied.
- crval_shift :
- input_sky_wcs :