get_wcs

romanisim.wcs.get_wcs(image, usecrds=True, distortion=None)

Get a WCS object for a given SCA or set of CRDS parameters.

Parameters:

imageroman_datamodels.datamodels.ImageModel or dict

Image model or dictionary containing CRDS parameters specifying appropriate reference distortion map to load.

usecrdsbool

If True, use crds reference distortions rather than galsim.roman distortion model.

distortionastropy.modeling.core.CompoundModel

Coordinate distortion transformation parameters

Returns:

galsim.CelestialWCS for an SCA