Aplpy

-------------------

This version restores compatibility with Astropy 0.3

New Features
~~~~~~~~~~~~

- `FITSFigure.recenter` can now be used with sliced data cubes. [122]

Bug fixes
~~~~~~~~~

- Fixed issues related to bugs in matplotlib in `match_original` when using
patch collections. [124]

- Fixed a bug that made images containing NaN or Inf values crash APLpy. [113]

- Fixed a bug that meant that world2pix and pix2world could not take
Astropy table columns. [114]

------------------

The main change in this version is that APLpy is now an Astropy-affiliated
package. This means that the Astropy core package is now required, but
PyFITS and PyWCS are no longer required as dependencies.

This release is now no longer compatible with python-montage, and users
should use the montage-wrapper package instead:

http://www.astropy.org/montage-wrapper/

Similarly, PyAVM 0.9.1 or later is now required, and APLpy cannot use
earlier versions:

http://astrofrog.github.io/pyavm/

This release is also the first release fully compatible with Python 3.

New features
~~~~~~~~~~~~

- file-like objects can now be passed to ``FITSFigure.save()``

- the subplot= argument to ``FITSFigure`` can now take the tuple syntax
``(2, 2, 1)`` instead of the full axes box, e.g. ``[0.1, 0.1, 0.9,
0.9]`` (thanks to Anika Schmiedeke for a patch).

- a colorbar label can now be set (thanks to Daniel Goering for a patch).

API changes
~~~~~~~~~~~

- the ``smooth`` argument used for images and contours can no longer take
a tuple. It takes either a single value for symmetric kernels (``gauss``
and ``box``), or it can take a Numpy array for any other kernel shape.

Bug fixes
~~~~~~~~~

- fixed bug that caused regions read from a ds9 region file to be offset
by one pixel.

- fixed bug that caused an exception when adding a Beam

- fixed bug that caused labels in decimal degrees to disappear for images
near the poles.

- fixed a bug that caused RGB images to appear vertically flipped with
certain versions of Matplotlib.

- added a workaround for a bug in Matplotlib that caused patches to appear
filled even with ``facecolor='none'``.

- fixed bug that caused images with NaN or Inf values to not be smoothed
correctly.

This version fixes issues that occurred when using APLpy with PyFITS
3.0.5. This version also contains the first unit/regression tests (which
we will include many more of in future).

New features
~~~~~~~~~~~~

- APLpy now includes regression tests that can be run with:

python setup.py test

- FITSFigure can now be initialized with files or HDUs with missing WCS
information.

- FITSFigure can now be initialized directly with Numpy arrays

- Added methods to show/hide ticks

Bug fixes
~~~~~~~~~

- Fixed a major bug that prevented data cube slicing with PyFITS 3.0.5

- Fixed a few bugs that occurred when plotting a grid for a few specific
projections.

- Fixed a bug that cause the error:

'Figure' object has no attribute '_auto_refresh'

This version sees the re-write of the WCS support to enable plotting of
FITS files with arbitrary coordinates rather than just sky coordinates,
and to allow slicing of multi-dimensional data cubes. It is now very easy
for example to make position-velocity plots from a 3D FITS cube.

See http://aplpy.github.com/documentation/slicing.html for details.

New features
~~~~~~~~~~~~

- added the ability to plot arbitrary coordinate systems rather than just
sky coordinates.

- added the ability to slice multi-dimensional data cubes.

- added minor ticks.

- pressing 'c' toggles between showing world and pixel coordinates in the
bottom of the interactive window.

- added the ability to specify slice indices for 3D FITS cubes in
make_rgb_image.

- allow pyregion.ShapeList instance to be passed to show_regions.

- the 'logging' module is now used for any stdout output.

- added an overlap= argument to show_contour to force only contours with
at least one point in the image to be shown. This can result in
significantly improved performance, and smaller files, when large FITS
files are used to display contours.

Changes
~~~~~~~

- the default frame color for the 'pretty' theme (the default) is now
black

APLpy is now released under an MIT license

New Features
~~~~~~~~~~~~

- support for plotting AVM-tagged images (requires PyAVM)

- make_rgb_image can now optionally embed AVM Spatial.* meta-data into
images (off by default, requires PyAVM)

- added support for multiple beams

- added method to show arrows

- added method to show lines (thanks to Moritz Guenther)

- added close() method to FITSFigure to free up memory (useful when
making many finder charts for example)

- added B1950 <-> J2000 conversion

- added axis_labels.set_x/yposition and tick_labels.set_x/yposition to
control whether labels are on top/bottom or left/right of the axes.

- now uses python-montage wrapper for reprojection

- added support for passing a WCS object to FITSFigure instead of a
file

- allow a custom box to be specified for the colorbar

API changes
~~~~~~~~~~~

- vmid has changed meaning for log image scaling. It is now the
baseline value to subtract from pixel values before taking the log
(defaults to zero)

- added interpolation= option to show_grayscale and show_colorscale

- added support for zorder= in methods to show shapes (controls which
layers appear on top of which)

- added north=, system=, and equinox= to make_rgb_cube for more control
over the final projection

Bug fixes
~~~~~~~~~

- added a few workaround for matplotlib bugs

- fixed a major bug with downsampling

- fixed bug with import of local modules

- other minor bug fixes

New Features
~~~~~~~~~~~~

- Support for image and contour smoothing

- Support for slicing of n-dimensional datacubes

- Support for beam:
-> add_beam()
-> remove_beam()

- Support for colorbar:
-> add_colorbar()
-> remove_colorbar()

- Support for scalebar:
-> add_scalebar()
-> remove_scalebar()

- Support for plotting ds9 region files:
-> show_regions()

- Support for automatic bounding box adjustments when saving

- New method to set the color to use for NaN values:
-> set_nan_color()

- Auto refreshing has been improved. Figures only refresh once per user
command if refreshing is turned on.

- Ensure tick spacing / label format consistency

- New method to overlay polygons

API changes
~~~~~~~~~~~

- The API has been majorly overhauled. Methods that have been
deprecated will give instructions on the new methods to use.

Bug fixes
~~~~~~~~~

- Fixed a bug with filled contours

- Fixed bug with remove_layer

- Fixed bug with montage commands