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Several small What's New fixes#9259

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tacaswell merged 5 commits intomatplotlib:v2.1.xfromQuLogic:whatsnew-fixes
Oct 2, 2017
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167 changes: 92 additions & 75 deletionsdoc/users/whats_new.rst
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Expand Up@@ -31,27 +31,27 @@ The polar axes transforms have been greatly re-factored to allow for more
customization of view limits and tick labelling. Additional options for view
limits allow for creating an annulus, a sector, or some combination of the two.

The :meth:`~matplotlib.axes.projections.polar.PolarAxes.set_rorigin` method may
The :meth:`~matplotlib.projections.polar.PolarAxes.set_rorigin` method may
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I think you can get away (here and below) with omitting the :meth: because the current default role is :py:obj:.

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Quite likely; I was a bit lazy and didn't change the existing ones, but generally didn't use any roles when adding the new links. There might be a slight difference with adding() for:func: and:meth:, though?

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@anntzeranntzerOct 2, 2017•
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http://www.sphinx-doc.org/en/stable/domains.html#role-py:func
http://www.sphinx-doc.org/en/stable/config.html#confval-add_function_parentheses

Not sure whether it is set in conf.py right now, or whether py:obj respecsts that setting. If it doesn't we can just set add_function_parentheses to False.

Of course it's fine if you decide you don't want to mess with the markup, this is already an improvement...

EDIT:sphinx-doc/sphinx#171 suggests :py:obj: respects add_function_parentheses.

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When I tried the two options you gave below, the one with the:meth: role has parentheses while the one without doesn't.

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Probably worth reporting as a Sphinx bug then?

be used to provide an offset to the minimum plotting radius, producing an
annulus.

The :meth:`~matplotlib.projections.polar.PolarAxes.set_theta_zero_location` now
has an optional :code:`offset` argument. This argument may be used to further
specify the zero location based on the given anchor point.
The :meth:`~matplotlib.projections.polar.PolarAxes.set_theta_zero_location`
method nowhas an optional :code:`offset` argument. This argument may be used
to furtherspecify the zero location based on the given anchor point.

.. figure::../gallery/pie_and_polar_charts/images/sphx_glr_polar_scatter_001.png
:target: ../gallery/pie_and_polar_charts/polar_scatter.html
.. figure:: /gallery/pie_and_polar_charts/images/sphx_glr_polar_scatter_002.png
:target: ../gallery/pie_and_polar_charts/polar_scatter.html#scatter-plot-on-polar-axis-with-offset-origin
:align: center
:scale: 50

Polar Offset Demo

The :meth:`~matplotlib.axes.projections.polar.PolarAxes.set_thetamin` and
:meth:`~matplotlib.axes.projections.polar.PolarAxes.set_thetamax` methods may
The :meth:`~matplotlib.projections.polar.PolarAxes.set_thetamin` and
:meth:`~matplotlib.projections.polar.PolarAxes.set_thetamax` methods may
be used to limit the range of angles plotted, producing sectors of a circle.

.. figure::../gallery/pie_and_polar_charts/images/sphx_glr_polar_scatter_002.png
:target: ../gallery/pie_and_polar_charts/polar_scatter.html
.. figure:: /gallery/pie_and_polar_charts/images/sphx_glr_polar_scatter_003.png
:target: ../gallery/pie_and_polar_charts/polar_scatter.html#scatter-plot-on-polar-axis-confined-to-a-sector
:align: center
:scale: 50

Expand All@@ -77,12 +77,12 @@ Jake Vanderplas' JSAnimation package has been merged into matplotlib. This
adds to matplotlib the `~matplotlib.animation.HTMLWriter` class for
generating a javascript HTML animation, suitable for the IPython notebook.
This can be activated by default by setting the ``animation.html`` rc
parameter to ``jshtml``. One can also call the ``anim_to_jshtml`` function
to manually convert ananimation. This can be displayed using IPython's
``HTML`` display class::
parameter to ``jshtml``. One can also call the
`~matplotlib.animation.Animation.to_jshtml` method to manually convert an
animation. This can be displayed using IPython's``HTML`` display class::

from IPython.display import HTML
HTML(animation.anim_to_jshtml(anim))
HTML(animation.to_jshtml())

The `~matplotlib.animation.HTMLWriter` class can also be used to generate
an HTML file by asking for the ``html`` writer.
Expand All@@ -107,7 +107,10 @@ path.
CheckButtons widget get_status function
---------------------------------------

A :func:`get_status` function has been added the :class:`matplotlib.widgets.CheckButtons` class. This :func:`get_status` function allows user to query the status (True/False) of all of the buttons in the CheckButtons object.
A :func:`~matplotlib.widgets.CheckButtons.get_status` method has been added the
:class:`matplotlib.widgets.CheckButtons` class. This ``get_status`` method
allows user to query the status (True/False) of all of the buttons in the
``CheckButtons`` object.


Abstract base class for movie writers
Expand All@@ -123,7 +126,7 @@ from the new abstract base class.
Add fill_bar argument to ``AnchoredSizeBar``
--------------------------------------------

The mpl_toolkits class
The``mpl_toolkits`` class
:class:`~mpl_toolkits.axes_grid1.anchored_artists.AnchoredSizeBar` now has an
additional ``fill_bar`` argument, which makes the size bar a solid rectangle
instead of just drawing the border of the rectangle. The default is ``None``,
Expand All@@ -138,44 +141,50 @@ rectangle for the size bar.
Annotation can use a default arrow style
----------------------------------------

Annotations now use the default arrow style when setting `arrowprops={}`,
Annotations now use the default arrow style when setting ``arrowprops={}``,
rather than no arrow (the new behavior actually matches the documentation).


Orthographic projection for mplot3d
-----------------------------------
:class:`~mpl_toolkits.mplot3d.axes3d.Axes3D` now accepts ``proj_type`` kwarg and has a method :meth:`~mpl_toolkits.mplot3d.axes3d.Axes3D.set_proj_type`. The default option is ``'persp'`` as before, and supplying ``'ortho'`` enables orthographic view.
:class:`~mpl_toolkits.mplot3d.axes3d.Axes3D` now accepts ``proj_type`` keyword
argument and has a method :meth:`~mpl_toolkits.mplot3d.axes3d.Axes3D.set_proj_type`.
The default option is ``'persp'`` as before, and supplying ``'ortho'`` enables
orthographic view.


``voxels`` function for mplot3d
-------------------------------
:class:`~mpl_toolkits.mplot3d.axes3d.Axes3D` now has a ``voxels`` method, for
visualizing boolean 3d data. Uses could include plotting a sparse 3D heat map,
or visualizing a volumetric model.
:class:`~mpl_toolkits.mplot3d.axes3d.Axes3D` now has a
`~mpl_toolkits.mplot3d.axes3d.Axes3D.voxels` method, for visualizing boolean 3d
data. Uses could include plotting a sparse 3D heat map, or visualizing a
volumetric model.


Barbs and Quiver Support Dates
------------------------------

When using the :func:`quiver` and :func:`barbs` plotting methods,
it is now possible to pass dates, just like for other methods like
:func:`plot`. This also allows these functions to handle values
that need unit-conversion applied.
When using the :func:`~matplotlib.axes.Axes.quiver` and
:func:`~matplotlib.axes.Axes.barbs` plotting methods, it is now possible to
pass dates, just like for other methods like :func:`~matplotlib.axes.Axes.plot`.
This also allows these functions to handle values that need unit-conversion
applied.


Hexbin default line color
-------------------------

The default ``linecolor`` kwarg for :func:`hexbin` is now ``'face'``, and
supplying ``'none'`` now prevents lines from being drawn around the hexagons.
The default ``linecolor`` keyword argument for :func:`~matplotlib.axes.Axes.hexbin`
is now ``'face'``, and supplying ``'none'`` now prevents lines from being drawn
around the hexagons.


figure.legend() can be called without arguments
Figure.legend() can be called without arguments
-----------------------------------------------

Calling :func:`figure.legend` can now be done with no arguments. In this case a
legend will be created that contains all the artists on all the axes contained
within the figure.
Calling``Figure.``:func:`~matplotlib.figure.Figure.legend` can now be
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Does

`.Figure.legend`

or

:meth:`.Figure.legend`

work?

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Ah, I wasn't sure if we could use the leading dot, but it does work in this case.

done with no arguments. In this case a legend will be created that contains all
the artists on all the axes containedwithin the figure.


New parameter `clear` for :func:`~matplotlib.pyplot.figure`
Expand DownExpand Up@@ -213,22 +222,23 @@ from :func:`~matplotlib.pyplot.figure`, it can also be used there::

AVConv writer is back
---------------------
Correct a bug that prevented detection of AVconv for matplotlib.animation.
Correct a bug that prevented detection of AVconv for`matplotlib.animation`.


Invalid (Non-finite) Axis Limit Error
-------------------------------------

When using :func:`set_xlim` and :func:`set_ylim`, passing non-finite values now
results in a ValueError. The previous behavior resulted in the limits being
erroneously reset to `(-0.001, 0.001)`.
When using :func:`~matplotlib.axes.Axes.set_xlim` and
:func:`~matplotlib.axes.Axes.set_ylim`, passing non-finite values now results
in a ``ValueError``. The previous behavior resulted in the limits being
erroneously reset to ``(-0.001, 0.001)``.


Metadata savefigkwarg
----------------------
Metadata savefigkeyword argument
---------------------------------

:func:`~matplotlib.pyplot.savefig` now accepts `metadata` as a keyword argument.
It can be used to store key/value pairs in the image metadata.
:func:`~matplotlib.pyplot.savefig` now accepts ``metadata`` as a keyword
argument.It can be used to store key/value pairs in the image metadata.

Supported formats and backends
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Expand All@@ -249,20 +259,20 @@ Example
Specify minimum value to format as scalar for ``LogFormatterMathtext``
----------------------------------------------------------------------

``LogFormatterMathtext`` now includes the option to specify a minimum value
exponent to format as a scalar (ie. 0.001 instead of 10^-3).
:class:`~matplotlib.ticker.LogFormatterMathtext` now includes the option to
specify a minimum valueexponent to format as a scalar (ie. 0.001 instead of 10^-3).


Multiple legend keys for legend entries
---------------------------------------

A legend entry can now contain more than one legend key. The extended
``HandlerTuple`` class now accepts two parameters: ``ndivide`` divides the
legend area in the specified number of sections; ``pad`` changes the padding
between the legend keys.
`~matplotlib.legend_handler.HandlerTuple` class now accepts two parameters:
``ndivide`` divides thelegend area in the specified number of sections;
``pad`` changes the paddingbetween the legend keys.

.. figure:: /gallery/text_labels_and_annotations/images/sphx_glr_legend_demo_004.png
:target: ../../gallery/text_labels_and_annotations/legend_demo.html
:target: ../gallery/text_labels_and_annotations/legend_demo.html
:align: center
:scale: 50

Expand All@@ -278,7 +288,7 @@ notice better rendering performance when plotting large amounts of
data (as long as the above parameters are set accordingly). Only the
line segment portion of paths will be simplified -- if you are also
drawing markers and experiencing problems with rendering speed, you
should consider using the ``markevery`` option to ``plot``.
should consider using the ``markevery`` option to `~matplotlib.axes.Axes.plot`.
See the :ref:`performance` section in the usage tutorial for more
information.

Expand All@@ -298,16 +308,17 @@ values are unlikely to cause any visible differences in your plots.
Added `matplotlib.ticker.PercentFormatter`
------------------------------------------

The new formatter has some nice features like being able to convert from
arbitrary data scales to percents, a customizable percent symbol and
either automatic or manual control over the decimal points.
The new `~matplotlib.ticker.PercentFormatter` formatter has some nice features
like being able to convert from arbitrary data scales to percents, a
customizable percent symbol and either automatic or manual control over the
decimal points.


New quiverkey anglekwarg
-------------------------
New quiverkey anglekeyword argument
------------------------------------

Plotting a :func:`quiverkey` now admits the ``angle`` kwarg,
which sets the angle at which to draw the key arrow.
Plotting a :func:`~matplotlib.axes.Axes.quiverkey` now admits the ``angle``
keyword argument,which sets the angle at which to draw the key arrow.


Reproducible PS, PDF and SVG output
Expand DownExpand Up@@ -352,16 +363,18 @@ reversed.
`Collection` offsets are no longer implicitly flattened
-------------------------------------------------------

`Collection` (and thus `scatter` -- both 2D and 3D) no longer implicitly
flattens its offsets. As a consequence, `scatter`'s x and y arguments can no
longer be 2+-dimensional arrays.
`~matplotlib.collections.Collection` (and thus both 2D
`~matplotlib.axes.Axes.scatter` and 3D
`~mpl_toolkits.mplot3d.axes3d.Axes3D.scatter`) no
longer implicitly flattens its offsets. As a consequence, ``scatter``'s ``x``
and ``y`` arguments can no longer be 2+-dimensional arrays.


`Artist.setp` (and `pyplot.setp`) accept a `file` argument
----------------------------------------------------------

The argument is keyword-only. It allows an output file other than
`sys.stdout` to be specified. It works exactly like the `file` argument
`sys.stdout` to be specified. It works exactly like the ``file`` argument
to `print`.


Expand All@@ -376,7 +389,8 @@ visibility of the flow pattern in some use cases.
`Axis.set_tick_params` now responds to 'rotation'
-------------------------------------------------

Bulk setting of tick label rotation is now possible via :func:`set_tick_params` using the `rotation` keyword.
Bulk setting of tick label rotation is now possible via
:func:`~matplotlib.axis.Axis.set_tick_params` using the ``rotation`` keyword.

Example
~~~~~~~
Expand All@@ -387,9 +401,10 @@ Example
Users can now toggle shading in 3D bar plots
--------------------------------------------

A new ``shade`` parameter has been added the 3D bar plotting method.
The default behavior remains to shade the bars, but now users
have the option of setting ``shade`` to ``False``.
A new ``shade`` parameter has been added the 3D
`~mpl_toolkits.mplot3d.axes3d.Axes3D.bar` plotting method. The default behavior
remains to shade the bars, but now users have the option of setting ``shade``
to ``False``.


Example
Expand DownExpand Up@@ -417,25 +432,26 @@ Example
New which Parameter for autofmt_xdate
-------------------------------------

A ``which`` parameter now exists for the method :func:`autofmt_xdate`. This
allows a user to format ``major``, ``minor`` or ``both`` tick labels
selectively. If ``which``is ``None``(default) then the method will rotate
``major`` tick labels.
A ``which`` parameter now exists for the method
:func:`~matplotlib.figure.Figure.autofmt_xdate`. Thisallows a user to format
``major``, ``minor``or ``both``tick labels selectively. If ``which`` is
``None`` (default) then the method will rotate ``major`` tick labels.

Example
~~~~~~~
::

autofmt_xdate(self,bottom=0.2, rotation=30, ha='right', which='minor')
fig.autofmt_xdate(bottom=0.2, rotation=30, ha='right', which='minor')


New Figure Parameter for subplot2grid
-------------------------------------

A ``fig`` parameter now exists for the method :func:`subplot2grid`. This allows
a user to specify the figure where the subplots will be created. If ``fig``
is ``None`` (default) then the method will use the current figure retrieved by
:func:`gcf`.
A ``fig`` parameter now exists for the function
:func:`~matplotlib.pyplot.subplot2grid`. This allows a user to specify the
figure where the subplots will be created. If ``fig`` is ``None`` (default)
then the method will use the current figure retrieved by
:func:`~matplotlib.pyplot.gcf`.

Example
~~~~~~~
Expand All@@ -447,9 +463,10 @@ Example
Interpolation in fill_betweenx
------------------------------

The ``interpolate`` parameter now exists for the method :func:`fill_betweenx`.
This allows a user to interpolate the data and fill the areas in the crossover
points, similarly to :func:`fill_between`.
The ``interpolate`` parameter now exists for the method
:func:`~matplotlib.axes.Axes.fill_betweenx`. This allows a user to interpolate
the data and fill the areas in the crossover points, similarly to
:func:`~matplotlib.axes.Axes.fill_between`.


Validation of line style rcParams
Expand DownExpand Up@@ -491,8 +508,8 @@ New keyword argument 'sep' for EngFormatter
A new "sep" keyword argument has been added to
:class:`~matplotlib.ticker.EngFormatter` and provides a means to define
the string that will be used between the value and its unit. The default
string is " ", which preserves the former behavior.Besides, the separator is
now present between the value and its unit even in the absence of SI prefix.
string is " ", which preserves the former behavior.Additionally, the separator
isnow present between the value and its unit even in the absence of SI prefix.
There was formerly a bug that was causing strings like "3.14V" to be returned
instead of the expected "3.14 V" (with the default behavior).

Expand Down
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