load_from_asdf

ginga.util.io.io_asdf.load_from_asdf(asdf_obj, data_key='data', wcs_key='wcs', header_key='meta')

Load from an ASDF object. This method is primarily used internally to extract the correct parts of an ASDF file to reconstruct an image with WCS and metadata.

Parameters:

asdf_objobj

ASDF or ASDF-in-FITS object.

data_key, wcs_key, header_keystr

Key values to specify where to find data, WCS, and header in ASDF.

Returns:

datandarray or None

Image data, if found.

wcsobj or None

GWCS object or models, if found.

ahdrdict

Header containing metadata.