API Reference

OpdData is the generic entry point when the OPD geometry is unknown. It is an alias of SingleSidedOpdData, so OpdData.from_array and OpdData.read inspect the OPD axis and return the matching subclass (DoubleSidedOpdData, OneSidedOpdData or SingleSidedOpdData). Direct construction, OpdData(...), does not dispatch: use from_array or read when the geometry is not known in advance. FTSData remains the retro-compatibility class.

FTSData	Retro-compatibility class.
SpecData	Class to handle spectral cube from FTS data.
SingleSidedOpdData	Class to handle OPD cube of FTS cubes.
DoubleSidedOpdData	Interferogram cube with a symmetric OPD axis, ZPD at the centre.
OneSidedOpdData	Interferogram cube with the ZPD at the start of the OPD axis.
apply_blockwise	Apply func to a cube in parallel, over blocks of pixels.
get_ils_kernel	Retrieve the ILS of a given FTS observation as an astropy.convolution.Kernel.
get_itg_binning_correction	Compute the itg binning correction to spectra
forman	Return Forman window.
has_axis_type
is_spectral
is_itg
merge_metas
fits_ftsdata_reader	Generate a FTS Data object from a FITS file.
fits_ftsdata_writer	Write FTSData object to FITS file.
hdf5_ftsdata_reader	Generate an FTSData object from an IDIA HDF5 file.
hdf5_ftsdata_writer	Write an FTSData object to an IDIA HDF5 file.
is_idia_hdf5	Determine whether origin is a IDIA HDF5 file.
plot_cube_preview
ftsdata_average	Return weighted average of severak FTSData, using inverse variance as the weights