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Store ASDF-in-FITS data in 1x1 BINTABLE HDU #519

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Jul 23, 2018
Merged

Store ASDF-in-FITS data in 1x1 BINTABLE HDU #519

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Store ASDF-in-FITS data in 1x1 BINTABLE HDU
drdavella Jul 23, 2018
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Update change log
drdavella Jul 23, 2018
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2 changes: 2 additions & 0 deletions CHANGES.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@

- Add API function for retrieving history entries. [#501]

- Store ASDF-in-FITS data inside a 1x1 BINTABLE HDU. [#519]

2.0.2 (unreleased)
------------------

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5 changes: 3 additions & 2 deletions asdf/fits_embed.py
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Expand Up @@ -263,8 +263,9 @@ def _create_hdu(self, buff, use_image_hdu):
array = np.frombuffer(buff.getvalue(), np.uint8)
return fits.ImageHDU(array, name=ASDF_EXTENSION_NAME)
else:
data = buff.getbuffer()
column = fits.Column(array=data, format='B', name='ASDF_METADATA')
data = np.array(buff.getbuffer(), dtype=np.uint8)[None, :]
fmt = '{}B'.format(len(data[0]))
column = fits.Column(array=data, format=fmt, name='ASDF_METADATA')
return fits.BinTableHDU.from_columns([column], name=ASDF_EXTENSION_NAME)

def _update_asdf_extension(self, all_array_storage=None,
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