Comments (4)
I had sort of assumed there would be a 1:1 relationship between FITS files and ASDF files. Can you elaborate on why you would want more than one ADSF file in a FITS file? As it stands now, you can still have multiple HDUs of data on the FITS side, all referred from a single ASDF tree in the ASDF extension.
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I was thinking about saving several WCS objects as separate ASDF extensions in the fits file and then referring to each from the appropriate FITS extension. But I see now this isn't supposed to work this way. When different WCSs are written in the same ASDF extension, does referencing the fits extensions (pairing a FITS data extension reference with a WCS in ASDF) give some additional functionality on the FITS side? In other words should I always reference the fits extension on the ASDF side or does it not matter? Do I lose functionality if I make an ASDF tree which holds only WCSs?
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@nden just wondering if this is still relevant.
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Closing since this no longer appears to be a necessary use case. We can reopen if it becomes necessary in the future.
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Related Issues (20)
- Document different behavior for built-in tags now handled by converters
- Consider sorting extensions provided by a plugin
- Document that adding a converter that doesn't support a tag in an extension will result in the converter being ignored
- No longer warn but raise an exception for converters with more than 1 tag that don't implement select tag
- Python 3.12 compatibility HOT 2
- Unable to load reference cycles HOT 1
- Support MaskedQuantity HOT 1
- asdf.commands.diff will report that contents differ for any arrays including NaNs HOT 1
- Consider inspecting modules for class paths
- Saving views results in saving the base array HOT 10
- Add `AsdfFile.closed` to the api
- minor code smells in static code analysis HOT 4
- CI pipeline runs for arbitrary pull requests HOT 6
- Can't open ASDF in FITS HOT 20
- asdf expects that block compression label bytes are valid ascii
- There is no API for providing `**kwargs` to `Compressor.decompress`
- `Compressors` provided via the `extensions` argument to `asdf.AsdfFile.__init__` are ignored
- asdftool repr for Time objects HOT 5
- Find way to deprecate ndarray validators being applied to all tags
- Deprecate `asdf.tags.core.ndarray.validate_*`
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