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0.5 (2020-09-17)
----------------
- Bugfix: subcubes from compound regions previously did not work. #601
- Bugfix: VaryingResolutionSpectralCube.mask_channels now preserves
previous mask. #620
- Refactor tests to use fixtures for accessing data instead of needing to
run a script to generate test files. #598
- Refactor package infrastructure to no longer use astropy-helpers. #599
- Switch to using unified I/O infrastructure from Astropy. #600
- Bugfix: fix slicing of cubes with mask set to None. #621
- Refactor CASA I/O to use dask to access the array/mask data directly
and to use only Python and Numpy to access image metadata. CASA images
can now be read without CASA installed. #607, #609, #613
- Add new dask-friendly classes ``DaskSpectralCube`` and
``DaskVaryingResolutionSpectralCube`` which use dask to efficiently
carry out calculations. #618
0.4.5 (2019-11-30)
------------------
- Added support for casatools-based io in #541 and beam reading from CASA
images in #543
- Add support for ``update_function`` in the joblib-based job distributor
in #534
- Add tests for WCS equivalence in reprojected images in #589
- Improve error messages when CASA files are read incorrectly in #584
- fix a small bug in matplotlib figure saving in #583
- Allow for reading of beamless cubes in #582
- Add support for 2d world functions in #575 and extrema in #552
- Handle kernels defined as quantities in smoothing in #578
- Fix bug with NPOL header keyword in #576
- Convolution will be skipped if beans are equal-sized in #573
- Fix one-D sliceing with no beam in #568
- Paralellization documentation improvement in #557
- Astropy-helpers updated to 2.0.10 in #553
- Fixed some future warnings in #565
- Added a new documentation example in #548
- Added channel map making capability in #551
- Fix warnings when beam is not defined in #561
- Improvment to joblib parallelization in #564
- Add ppbeam attribute to lower-dimensional objects #549
- Handle CASA file beams in #543 and #545
- Add support for CASA reading using casatools (casa6) in #541
- Bugfix for slicing of different shapes in #532
- Fixes to yt integratino in #531
- Add `unmasked_beams` attribute and change many beams behaviors in #502
- Bugfix for downsampled WCS corners in #525
- Performance enhancement to world extrema in #524
- Simplify conversion from CASA coordsys to FITS-WCS #593
- Add chunked file reading for CASA .image opening #592
- Dropped python 3.5 testing in #592
0.4.4 (2019-02-20)
------------------
- Refactor all beam parameters into mix-in classes; added BaseOneDSpectrum
for common functionality between OneDSpectrum and VaryingResolutionOneDSpectrum.
Retain beam objects when doing arithmetic with LDOs/
(https://github.com/radio-astro-tools/spectral-cube/pull/521)
- Refactor OneDSpectrum objects to include a single beam if they
were produced from a cube with a single beam to enable K<->Jy
conversions
(https://github.com/radio-astro-tools/spectral-cube/pull/510)
- Bugfix: fix compatibility of to_glue with latest versions of glue.
(https://github.com/radio-astro-tools/spectral-cube/pull/491)
- Refactor to use regions instead of pyregion. Adds CRTF support
(https://github.com/radio-astro-tools/spectral-cube/pull/488)
- Direct downsampling tools added, both in-memory and memmap
(https://github.com/radio-astro-tools/spectral-cube/pull/486)
0.4.3 (2018-04-05)
------------------
- Refactor spectral smoothing tools to allow parallelized application *and*
memory mapped output (to avoid loading cube into memory). Created
``apply_function_parallel_spectral`` to make this general. Added
``joblib`` as a dependency.
(https://github.com/radio-astro-tools/spectral-cube/pull/474)
- Bugfix: Reversing a cube's spectral axis should now do something reasonable
instead of unreasonable
(https://github.com/radio-astro-tools/spectral-cube/pull/478)
0.4.2 (2018-02-21)
------------------
- Bugfix and enhancement: handle multiple beams using radio_beam's
multiple-beams feature. This allows `convolve_to` to work when some beams
are masked out. Also removes ``cube_utils.average_beams``, which is now
implemented directly in radio_beam
(https://github.com/radio-astro-tools/spectral-cube/pull/437)
- Added a variety of stacking tools, both for stacking full velocity
cubes of different lines and for stacking full spectra based on
a velocity field (https://github.com/radio-astro-tools/spectral-cube/pull/446,
https://github.com/radio-astro-tools/spectral-cube/pull/453,
https://github.com/radio-astro-tools/spectral-cube/pull/457,
https://github.com/radio-astro-tools/spectral-cube/pull/465)
0.4.1 (2017-10-17)
------------------
- Add SpectralCube.with_beam and Projection.with_beam for attaching
beam objects. Raise error for position-spectral slices of VRSCs
(https://github.com/radio-astro-tools/spectral-cube/pull/433)
- Raise a nicer error if no data is present in the default or
selected HDU
(https://github.com/radio-astro-tools/spectral-cube/pull/424)
- Check mask inputs to OneDSpectrum and add mask handling for
OneDSpectrum.spectral_interpolate
(https://github.com/radio-astro-tools/spectral-cube/pull/400)
- Improve exception if cube does not have two celestial and one
spectral dimesnion
(https://github.com/radio-astro-tools/spectral-cube/pull/425)
- Add creating a Projection from a FITS HDU
(https://github.com/radio-astro-tools/spectral-cube/pull/376)
- Deprecate numpy <=1.8 because nanmedian is needed
(https://github.com/radio-astro-tools/spectral-cube/pull/373)
- Add tools for masking bad beams in VaryingResolutionSpectralCubes
(https://github.com/radio-astro-tools/spectral-cube/pull/373)
- Don't warn if no beam was found in a cube
(https://github.com/radio-astro-tools/spectral-cube/pull/422)
0.4.0 (2016-09-06)
------------------
- Handle equal beams when convolving cubes spatially.
(https://github.com/radio-astro-tools/spectral-cube/pull/356)
- Whole cube convolution & reprojection has been added, including tools to
smooth spectrally and spatially to force two cubes onto an identical grid.
(https://github.com/radio-astro-tools/spectral-cube/pull/313)
- Bugfix: files larger than the available memory are now readable again
because ``spectral-cube`` does not encourage you to modify cubes inplace
(https://github.com/radio-astro-tools/spectral-cube/pull/299)
- Cube planes with bad beams will be masked out
(https://github.com/radio-astro-tools/spectral-cube/pull/298)
- Added a new cube type, VaryingResolutionSpectralCube, meant to handle
CASA-produced cubes that have different beams in each channel
(https://github.com/radio-astro-tools/spectral-cube/pull/292)
- Added tests for new functionality in OneDSpectrum
(https://github.com/radio-astro-tools/spectral-cube/pull/277)
- Split out common functionality between SpectralCube and LowerDimensionalObject
into BaseNDClass and SpectralAxisMixinClass
(https://github.com/radio-astro-tools/spectral-cube/pull/274)
- added new linewidth_sigma and linewidth_fwhm methods to SpectralCube for
computing linewidth maps, and make sure the documentation is clear that
moment(order=2) is a variance map.
(https://github.com/radio-astro-tools/spectral-cube/pull/275)
- fixed significant error when the cube WCS includes a cd matrix. This
error resulted in incorrect spectral coordinate conversions
(https://github.com/radio-astro-tools/spectral-cube/pull/276)
0.3.2 (2016-07-11)
------------------
- Bugfix in configuration
0.3.1 (2016-02-04)
------------------
- Preserve metadata when making projections
(https://github.com/radio-astro-tools/spectral-cube/pull/250)
- bugfix: cube._data cannot be a quantity
(https://github.com/radio-astro-tools/spectral-cube/pull/251)
- partial fix for ds9 import bug
(https://github.com/radio-astro-tools/spectral-cube/pull/253)
- preserve WCS information in projections
(https://github.com/radio-astro-tools/spectral-cube/pull/256)
- whitespace stripped from BUNIT
(https://github.com/radio-astro-tools/spectral-cube/pull/257)
- bugfix: sometimes cube would be read into memory when it should not be
(https://github.com/radio-astro-tools/spectral-cube/pull/259)
- more projection preservation fixes
(https://github.com/radio-astro-tools/spectral-cube/pull/265)
- correct jy/beam capitalization
(https://github.com/radio-astro-tools/spectral-cube/pull/267)
- convenience attribute for beam access
(https://github.com/radio-astro-tools/spectral-cube/pull/268)
- fix beam reading, which would claim failure even during success
(https://github.com/radio-astro-tools/spectral-cube/pull/271)
0.3.0 (2015-08-16)
------------------
- Add experimental line-finding tool using astroquery.splatalogue
(https://github.com/radio-astro-tools/spectral-cube/pull/210)
- Bugfixes (211,212,217)
- Add arithmetic operations (add, subtract, divide, multiply, power)
(https://github.com/radio-astro-tools/spectral-cube/pull/220).
These operations will not be permitted on large cubes by default, but will
require the user to specify that they are allowed using the attribute
``allow_huge_operations``
- Implemented slicewise stddev and mean
(https://github.com/radio-astro-tools/spectral-cube/pull/225)
- Bugfix: prevent a memory leak when creating a large number of Cubes
(https://github.com/radio-astro-tools/spectral-cube/pull/233)
- Provide a ``base`` attribute so that tools like joblib can operate on
``SpectralCube`` s as memory maps
(https://github.com/radio-astro-tools/spectral-cube/pull/230)
- Masks have a quicklook method
(https://github.com/radio-astro-tools/spectral-cube/pull/228)
- Memory mapping can be disabled
(https://github.com/radio-astro-tools/spectral-cube/pull/226)
- Add xor operations for Masks
(https://github.com/radio-astro-tools/spectral-cube/pull/241)
- Added a new StokesSpectralCube class to deal with 4-d cubes
(https://github.com/radio-astro-tools/spectral-cube/pull/249)
0.2.2 (2015-03-12)
------------------
- Output mask as a CASA image https://github.com/radio-astro-tools/spectral-cube/pull/171
- ytcube exports to .obj and .ply too
https://github.com/radio-astro-tools/spectral-cube/pull/173
- Fix air wavelengths, which were mistreated
(https://github.com/radio-astro-tools/spectral-cube/pull/186)
- Add support for sum/mean/std over both spatial axes to return a
OneDSpectrum object. This PR also removes numpy 1.5-1.7 tests, since
many `spectral_cube` functions are not compatible with these versions
of numpy (https://github.com/radio-astro-tools/spectral-cube/pull/188)
0.2.1 (2014-12-03)
------------------
- CASA cube readers now compatible with ALMA .image files (tested on Cycle 2
data) https://github.com/radio-astro-tools/spectral-cube/pull/165
- Spectral quicklooks available
https://github.com/radio-astro-tools/spectral-cube/pull/164 now that 1D
slices are possible
https://github.com/radio-astro-tools/spectral-cube/pull/157
- `to_pvextractor` tool allows easy export to `pvextractor
<pvextractor.readthedocs.org>`_
https://github.com/radio-astro-tools/spectral-cube/pull/160
- `to_glue` sends the cube to `glue <www.glueviz.org/en/latest/>`_
https://github.com/radio-astro-tools/spectral-cube/pull/153
0.2 (2014-09-11)
----------------
- `moments` preserve spectral units now https://github.com/radio-astro-tools/spectral-cube/pull/118
- Initial support added for Air Wavelength. This is only 1-way support,
round-tripping (vacuum->air) is not supported yet.
https://github.com/radio-astro-tools/spectral-cube/pull/117
- Integer slices (single frames) are supported
https://github.com/radio-astro-tools/spectral-cube/pull/113
- Bugfix: BUNIT capitalized https://github.com/radio-astro-tools/spectral-cube/pull/112
- Masks can be any array that is broadcastable to the cube shape
https://github.com/radio-astro-tools/spectral-cube/pull/115
- Added `.header` and `.hdu` convenience methods https://github.com/radio-astro-tools/spectral-cube/pull/120
- Added public functions `apply_function` and `apply_numpy_function` that allow
functions to be run on cubes while preserving important metadata (e.g., WCS)
- Added a quicklook tool using aplpy to view slices (https://github.com/radio-astro-tools/spectral-cube/pull/131)
- Added subcube and ds9 region extraction tools (https://github.com/radio-astro-tools/spectral-cube/pull/128)
- Added a `to_yt` function for easily converting between SpectralCube and yt
datacube/dataset objects
(https://github.com/radio-astro-tools/spectral-cube/pull/90,
https://github.com/radio-astro-tools/spectral-cube/pull/129)
- Masks' `.include()` method works without ``data`` arguments.
(https://github.com/radio-astro-tools/spectral-cube/pull/147)
- Allow movie name to be specified in yt movie creation
(https://github.com/radio-astro-tools/spectral-cube/pull/145)
- add `flattened_world` method to get the world coordinates corresponding to
each pixel in the flattened array
(https://github.com/radio-astro-tools/spectral-cube/pull/146)
0.1 (2014-06-01)
----------------
- Initial Release.
|