check_astropy_wcs_interface

lsst.images.tests.check_astropy_wcs_interface(tc: TestCase, wcs: BaseHighLevelWCS, pixel_xy: XY[ndarray], sky_coords: SkyCoord, *, pixel_atol: float | None = None, sky_atol: Quantity | None = None) → None

Test an Astropy WCS instance against known arrays of pixel and sky coordinates.

Parameters

tc

Test case object with assert methods to use.

wcs

Astropy WCS object to test.

pixel_xy

Arrays of pixel coordinates.

sky_coords

Corresponding sky coordinates.

pixel_atol

Expected absolute precision of pixel points.

sky_atol

Expected absolute precision of sky coordinates.