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<ul>
<li><a class="reference internal" href="#">API Changes in 2.1.0</a><ul>
<li><a class="reference internal" href="#default-behavior-of-log-scales-changed-to-mask-0-values">Default behavior of log scales changed to mask <= 0 values</a></li>
<li><a class="reference internal" href="#matplotlib-cbook-callbackregistry-process-suppresses-exceptions-by-default"><code class="xref py py-meth docutils literal notranslate"><span class="pre">matplotlib.cbook.CallbackRegistry.process()</span></code> suppresses exceptions by default</a></li>
<li><a class="reference internal" href="#improved-toggling-of-the-axes-grids">Improved toggling of the axes grids</a></li>
<li><a class="reference internal" href="#ticklabels-are-turned-off-instead-of-being-invisible">Ticklabels are turned off instead of being invisible</a></li>
<li><a class="reference internal" href="#removal-of-warning-on-empty-legends">Removal of warning on empty legends</a></li>
<li><a class="reference internal" href="#more-accurate-legend-autopositioning">More accurate legend autopositioning</a></li>
<li><a class="reference internal" href="#cleanup-of-stock-sample-data">Cleanup of stock sample data</a></li>
<li><a class="reference internal" href="#updated-qhull-to-2015-2">Updated qhull to 2015.2</a></li>
<li><a class="reference internal" href="#improved-delaunay-triangulations-with-large-offsets">Improved Delaunay triangulations with large offsets</a></li>
<li><a class="reference internal" href="#use-backports-functools-lru-cache-instead-of-functools32">Use <code class="docutils literal notranslate"><span class="pre">backports.functools_lru_cache</span></code> instead of <code class="docutils literal notranslate"><span class="pre">functools32</span></code></a></li>
<li><a class="reference internal" href="#cbook-is-numlike-only-performs-an-instance-check"><code class="docutils literal notranslate"><span class="pre">cbook.is_numlike</span></code> only performs an instance check</a></li>
<li><a class="reference internal" href="#elliptical-arcs-now-drawn-between-correct-angles">Elliptical arcs now drawn between correct angles</a></li>
<li><a class="reference internal" href="#d-backend-no-longer-sets-the-backend"><code class="docutils literal notranslate"><span class="pre">-d$backend</span></code> no longer sets the backend</a></li>
<li><a class="reference internal" href="#path-intersects-bbox-always-treats-the-bounding-box-as-filled">Path.intersects_bbox always treats the bounding box as filled</a></li>
<li><a class="reference internal" href="#wx-no-longer-calls-generates-idleevent-events-or-calls-idle-event">WX no longer calls generates <code class="docutils literal notranslate"><span class="pre">IdleEvent</span></code> events or calls <code class="docutils literal notranslate"><span class="pre">idle_event</span></code></a></li>
<li><a class="reference internal" href="#correct-scaling-of-magnitude-spectrum">Correct scaling of <code class="docutils literal notranslate"><span class="pre">magnitude_spectrum()</span></code></a></li>
<li><a class="reference internal" href="#change-to-signatures-of-bar-barh">Change to signatures of <code class="xref py py-meth docutils literal notranslate"><span class="pre">bar()</span></code> & <code class="xref py py-meth docutils literal notranslate"><span class="pre">barh()</span></code></a></li>
<li><a class="reference internal" href="#font-cache-as-json">Font cache as json</a></li>
<li><a class="reference internal" href="#invalid-non-finite-axis-limit-error">Invalid (Non-finite) Axis Limit Error</a></li>
<li><a class="reference internal" href="#scatter-and-collection-offsets-are-no-longer-implicitly-flattened"><code class="docutils literal notranslate"><span class="pre">scatter</span></code> and <code class="docutils literal notranslate"><span class="pre">Collection</span></code> offsets are no longer implicitly flattened</a></li>
<li><a class="reference internal" href="#deprecations">Deprecations</a><ul>
<li><a class="reference internal" href="#graphicscontextbase-s-linestyle-property"><code class="docutils literal notranslate"><span class="pre">GraphicsContextBase</span></code>'s <code class="docutils literal notranslate"><span class="pre">linestyle</span></code> property.</a></li>
<li><a class="reference internal" href="#navigationtoolbar2-dynamic-update"><code class="docutils literal notranslate"><span class="pre">NavigationToolbar2.dynamic_update</span></code></a></li>
<li><a class="reference internal" href="#testing">Testing</a></li>
<li><a class="reference internal" href="#engformatter-num-arg-as-string"><code class="docutils literal notranslate"><span class="pre">EngFormatter</span></code> <em>num</em> arg as string</a></li>
<li><a class="reference internal" href="#mpl-toolkits-axes-grid-module"><code class="docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid</span></code> module</a></li>
<li><a class="reference internal" href="#axes-collision-in-figure-add-axes"><code class="docutils literal notranslate"><span class="pre">Axes</span></code> collision in <code class="docutils literal notranslate"><span class="pre">Figure.add_axes</span></code></a></li>
<li><a class="reference internal" href="#former-validators-for-contour-negative-linestyle">Former validators for <code class="docutils literal notranslate"><span class="pre">contour.negative_linestyle</span></code></a></li>
<li><a class="reference internal" href="#cbook"><code class="docutils literal notranslate"><span class="pre">cbook</span></code></a></li>
</ul>
</li>
<li><a class="reference internal" href="#code-removal">Code Removal</a><ul>
<li><a class="reference internal" href="#qt4-compat-py">qt4_compat.py</a></li>
<li><a class="reference internal" href="#previously-deprecated-methods">Previously Deprecated methods</a></li>
<li><a class="reference internal" href="#axes-set-aspect-normal"><code class="docutils literal notranslate"><span class="pre">Axes.set_aspect("normal")</span></code></a></li>
<li><a class="reference internal" href="#shading-kwarg-to-pcolor"><code class="docutils literal notranslate"><span class="pre">shading</span></code> kwarg to <code class="docutils literal notranslate"><span class="pre">pcolor</span></code></a></li>
<li><a class="reference internal" href="#functions-removed-from-the-lines-module">Functions removed from the <code class="xref py py-obj docutils literal notranslate"><span class="pre">lines</span></code> module</a></li>
<li><a class="reference internal" href="#pdf-backend-functions">PDF backend functions</a></li>
<li><a class="reference internal" href="#matplotlib-delaunay">matplotlib.delaunay</a></li>
</ul>
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</ul>
</li>
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<div class="section" id="api-changes-in-2-1-0">
<h1>API Changes in 2.1.0<a class="headerlink" href="#api-changes-in-2-1-0" title="Permalink to this headline">¶</a></h1>
<div class="section" id="default-behavior-of-log-scales-changed-to-mask-0-values">
<h2>Default behavior of log scales changed to mask <= 0 values<a class="headerlink" href="#default-behavior-of-log-scales-changed-to-mask-0-values" title="Permalink to this headline">¶</a></h2>
<p>Calling <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.set_xscale.html#matplotlib.axes.Axes.set_xscale" title="matplotlib.axes.Axes.set_xscale"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.axes.Axes.set_xscale</span></code></a> or <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.set_yscale.html#matplotlib.axes.Axes.set_yscale" title="matplotlib.axes.Axes.set_yscale"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.axes.Axes.set_yscale</span></code></a>
now uses 'mask' as the default method to handle invalid values (as opposed to
'clip'). This means that any values <= 0 on a log scale will not be shown.</p>
<p>Previously they were clipped to a very small number and shown.</p>
</div>
<div class="section" id="matplotlib-cbook-callbackregistry-process-suppresses-exceptions-by-default">
<h2><a class="reference internal" href="../cbook_api.html#matplotlib.cbook.CallbackRegistry.process" title="matplotlib.cbook.CallbackRegistry.process"><code class="xref py py-meth docutils literal notranslate"><span class="pre">matplotlib.cbook.CallbackRegistry.process()</span></code></a> suppresses exceptions by default<a class="headerlink" href="#matplotlib-cbook-callbackregistry-process-suppresses-exceptions-by-default" title="Permalink to this headline">¶</a></h2>
<p>Matplotlib uses instances of <a class="reference internal" href="../cbook_api.html#matplotlib.cbook.CallbackRegistry" title="matplotlib.cbook.CallbackRegistry"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CallbackRegistry</span></code></a>
as a bridge between user input event from the GUI and user callbacks.
Previously, any exceptions raised in a user call back would bubble out
of of the <code class="docutils literal notranslate"><span class="pre">process</span></code> method, which is typically in the GUI event
loop. Most GUI frameworks simple print the traceback to the screen
and continue as there is not always a clear method of getting the
exception back to the user. However PyQt5 now exits the process when
it receives an un-handled python exception in the event loop. Thus,
<a class="reference internal" href="../cbook_api.html#matplotlib.cbook.CallbackRegistry.process" title="matplotlib.cbook.CallbackRegistry.process"><code class="xref py py-meth docutils literal notranslate"><span class="pre">process()</span></code></a> now suppresses and
prints tracebacks to stderr by default.</p>
<p>What <a class="reference internal" href="../cbook_api.html#matplotlib.cbook.CallbackRegistry.process" title="matplotlib.cbook.CallbackRegistry.process"><code class="xref py py-meth docutils literal notranslate"><span class="pre">process()</span></code></a> does with exceptions
is now user configurable via the <code class="docutils literal notranslate"><span class="pre">exception_handler</span></code> attribute and kwarg. To
restore the previous behavior pass <code class="docutils literal notranslate"><span class="pre">None</span></code></p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">cb</span> <span class="o">=</span> <span class="n">CallbackRegistry</span><span class="p">(</span><span class="n">exception_handler</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
</pre></div>
</div>
<p>A function which take and <code class="docutils literal notranslate"><span class="pre">Exception</span></code> as its only argument may also be passed</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">maybe_reraise</span><span class="p">(</span><span class="n">exc</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">exc</span><span class="p">,</span> <span class="ne">RuntimeError</span><span class="p">):</span>
<span class="k">pass</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">exc</span>
<span class="n">cb</span> <span class="o">=</span> <span class="n">CallbackRegistry</span><span class="p">(</span><span class="n">exception_handler</span><span class="o">=</span><span class="n">maybe_reraise</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="improved-toggling-of-the-axes-grids">
<h2>Improved toggling of the axes grids<a class="headerlink" href="#improved-toggling-of-the-axes-grids" title="Permalink to this headline">¶</a></h2>
<p>The <code class="docutils literal notranslate"><span class="pre">g</span></code> key binding now switches the states of the <code class="docutils literal notranslate"><span class="pre">x</span></code> and <code class="docutils literal notranslate"><span class="pre">y</span></code> grids
independently (by cycling through all four on/off combinations).</p>
<p>The new <code class="docutils literal notranslate"><span class="pre">G</span></code> key binding switches the states of the minor grids.</p>
<p>Both bindings are disabled if only a subset of the grid lines (in either
direction) is visible, to avoid making irreversible changes to the figure.</p>
</div>
<div class="section" id="ticklabels-are-turned-off-instead-of-being-invisible">
<h2>Ticklabels are turned off instead of being invisible<a class="headerlink" href="#ticklabels-are-turned-off-instead-of-being-invisible" title="Permalink to this headline">¶</a></h2>
<p>Internally, the <a class="reference internal" href="../axis_api.html#matplotlib.axis.Tick" title="matplotlib.axis.Tick"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Tick</span></code></a>'s <code class="docutils literal notranslate"><span class="pre">~matplotlib.axis.Tick.label1On</span></code> attribute
is now used to hide tick labels instead of setting the visibility on the tick
label objects.
This improves overall performance and fixes some issues.
As a consequence, in case those labels ought to be shown,
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.tick_params.html#matplotlib.axes.Axes.tick_params" title="matplotlib.axes.Axes.tick_params"><code class="xref py py-func docutils literal notranslate"><span class="pre">tick_params()</span></code></a>
needs to be used, e.g.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ax</span><span class="o">.</span><span class="n">tick_params</span><span class="p">(</span><span class="n">labelbottom</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="removal-of-warning-on-empty-legends">
<h2>Removal of warning on empty legends<a class="headerlink" href="#removal-of-warning-on-empty-legends" title="Permalink to this headline">¶</a></h2>
<p><a class="reference internal" href="../_as_gen/matplotlib.pyplot.legend.html#matplotlib.pyplot.legend" title="matplotlib.pyplot.legend"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyplot.legend</span></code></a> used to issue a warning when no labeled artist could be
found. This warning has been removed.</p>
</div>
<div class="section" id="more-accurate-legend-autopositioning">
<h2>More accurate legend autopositioning<a class="headerlink" href="#more-accurate-legend-autopositioning" title="Permalink to this headline">¶</a></h2>
<p>Automatic positioning of legends now prefers using the area surrounded
by a <a class="reference internal" href="../_as_gen/matplotlib.lines.Line2D.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Line2D</span></code></a> rather than placing the legend over the line itself.</p>
</div>
<div class="section" id="cleanup-of-stock-sample-data">
<h2>Cleanup of stock sample data<a class="headerlink" href="#cleanup-of-stock-sample-data" title="Permalink to this headline">¶</a></h2>
<p>The sample data of stocks has been cleaned up to remove redundancies and
increase portability. The <code class="docutils literal notranslate"><span class="pre">AAPL.dat.gz</span></code>, <code class="docutils literal notranslate"><span class="pre">INTC.dat.gz</span></code> and <code class="docutils literal notranslate"><span class="pre">aapl.csv</span></code>
files have been removed entirely and will also no longer be available from
<a class="reference internal" href="../cbook_api.html#matplotlib.cbook.get_sample_data" title="matplotlib.cbook.get_sample_data"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.cbook.get_sample_data</span></code></a>. If a CSV file is required, we suggest using
the <code class="docutils literal notranslate"><span class="pre">msft.csv</span></code> that continues to be shipped in the sample data. If a NumPy
binary file is acceptable, we suggest using one of the following two new files.
The <code class="docutils literal notranslate"><span class="pre">aapl.npy.gz</span></code> and <code class="docutils literal notranslate"><span class="pre">goog.npy</span></code> files have been replaced by <code class="docutils literal notranslate"><span class="pre">aapl.npz</span></code>
and <code class="docutils literal notranslate"><span class="pre">goog.npz</span></code>, wherein the first column's type has changed from
<a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.date" title="(in Python v3.9)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">datetime.date</span></code></a> to <a class="reference external" href="https://numpy.org/doc/stable/reference/arrays.scalars.html#numpy.datetime64" title="(in NumPy v1.20)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">numpy.datetime64</span></code></a> for better portability across Python
versions. Note that Matplotlib does not fully support <a class="reference external" href="https://numpy.org/doc/stable/reference/arrays.scalars.html#numpy.datetime64" title="(in NumPy v1.20)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">numpy.datetime64</span></code></a> as
yet.</p>
</div>
<div class="section" id="updated-qhull-to-2015-2">
<h2>Updated qhull to 2015.2<a class="headerlink" href="#updated-qhull-to-2015-2" title="Permalink to this headline">¶</a></h2>
<p>The version of qhull shipped with Matplotlib, which is used for
Delaunay triangulation, has been updated from version 2012.1 to
2015.2.</p>
</div>
<div class="section" id="improved-delaunay-triangulations-with-large-offsets">
<h2>Improved Delaunay triangulations with large offsets<a class="headerlink" href="#improved-delaunay-triangulations-with-large-offsets" title="Permalink to this headline">¶</a></h2>
<p>Delaunay triangulations now deal with large x,y offsets in a better
way. This can cause minor changes to any triangulations calculated
using Matplotlib, i.e. any use of <a class="reference internal" href="../tri_api.html#matplotlib.tri.Triangulation" title="matplotlib.tri.Triangulation"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.tri.Triangulation</span></code></a> that
requests that a Delaunay triangulation is calculated, which includes
<a class="reference internal" href="../_as_gen/matplotlib.pyplot.tricontour.html#matplotlib.pyplot.tricontour" title="matplotlib.pyplot.tricontour"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.pyplot.tricontour</span></code></a>, <a class="reference internal" href="../_as_gen/matplotlib.pyplot.tricontourf.html#matplotlib.pyplot.tricontourf" title="matplotlib.pyplot.tricontourf"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.pyplot.tricontourf</span></code></a>,
<a class="reference internal" href="../_as_gen/matplotlib.pyplot.tripcolor.html#matplotlib.pyplot.tripcolor" title="matplotlib.pyplot.tripcolor"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.pyplot.tripcolor</span></code></a>, <a class="reference internal" href="../_as_gen/matplotlib.pyplot.triplot.html#matplotlib.pyplot.triplot" title="matplotlib.pyplot.triplot"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.pyplot.triplot</span></code></a>,
<code class="docutils literal notranslate"><span class="pre">matplotlib.mlab.griddata</span></code> and
<a class="reference internal" href="../_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.html#mpl_toolkits.mplot3d.axes3d.Axes3D.plot_trisurf" title="mpl_toolkits.mplot3d.axes3d.Axes3D.plot_trisurf"><code class="xref py py-obj docutils literal notranslate"><span class="pre">mpl_toolkits.mplot3d.axes3d.Axes3D.plot_trisurf</span></code></a>.</p>
</div>
<div class="section" id="use-backports-functools-lru-cache-instead-of-functools32">
<h2>Use <code class="docutils literal notranslate"><span class="pre">backports.functools_lru_cache</span></code> instead of <code class="docutils literal notranslate"><span class="pre">functools32</span></code><a class="headerlink" href="#use-backports-functools-lru-cache-instead-of-functools32" title="Permalink to this headline">¶</a></h2>
<p>It's better maintained and more widely used (by pylint, jaraco, etc).</p>
</div>
<div class="section" id="cbook-is-numlike-only-performs-an-instance-check">
<h2><code class="docutils literal notranslate"><span class="pre">cbook.is_numlike</span></code> only performs an instance check<a class="headerlink" href="#cbook-is-numlike-only-performs-an-instance-check" title="Permalink to this headline">¶</a></h2>
<p><code class="docutils literal notranslate"><span class="pre">matplotlib.cbook.is_numlike</span></code> now only checks that its argument
is an instance of <code class="docutils literal notranslate"><span class="pre">(numbers.Number,</span> <span class="pre">np.Number)</span></code>. In particular,
this means that arrays are now not num-like.</p>
</div>
<div class="section" id="elliptical-arcs-now-drawn-between-correct-angles">
<h2>Elliptical arcs now drawn between correct angles<a class="headerlink" href="#elliptical-arcs-now-drawn-between-correct-angles" title="Permalink to this headline">¶</a></h2>
<p>The <a class="reference internal" href="../_as_gen/matplotlib.patches.Arc.html#matplotlib.patches.Arc" title="matplotlib.patches.Arc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.patches.Arc</span></code></a> patch is now correctly drawn between the given
angles.</p>
<p>Previously a circular arc was drawn and then stretched into an ellipse,
so the resulting arc did not lie between <em>theta1</em> and <em>theta2</em>.</p>
</div>
<div class="section" id="d-backend-no-longer-sets-the-backend">
<h2><code class="docutils literal notranslate"><span class="pre">-d$backend</span></code> no longer sets the backend<a class="headerlink" href="#d-backend-no-longer-sets-the-backend" title="Permalink to this headline">¶</a></h2>
<p>It is no longer possible to set the backend by passing <code class="docutils literal notranslate"><span class="pre">-d$backend</span></code>
at the command line. Use the <code class="docutils literal notranslate"><span class="pre">MPLBACKEND</span></code> environment variable
instead.</p>
</div>
<div class="section" id="path-intersects-bbox-always-treats-the-bounding-box-as-filled">
<h2>Path.intersects_bbox always treats the bounding box as filled<a class="headerlink" href="#path-intersects-bbox-always-treats-the-bounding-box-as-filled" title="Permalink to this headline">¶</a></h2>
<p>Previously, when <code class="docutils literal notranslate"><span class="pre">Path.intersects_bbox</span></code> was called with <code class="docutils literal notranslate"><span class="pre">filled</span></code> set to
<code class="docutils literal notranslate"><span class="pre">False</span></code>, it would treat both the path and the bounding box as unfilled. This
behavior was not well documented and it is usually not the desired behavior,
since bounding boxes are used to represent more complex shapes located inside
the bounding box. This behavior has now been changed: when <code class="docutils literal notranslate"><span class="pre">filled</span></code> is
<code class="docutils literal notranslate"><span class="pre">False</span></code>, the path will be treated as unfilled, but the bounding box is still
treated as filled. The old behavior was arguably an implementation bug.</p>
<p>When <code class="docutils literal notranslate"><span class="pre">Path.intersects_bbox</span></code> is called with <code class="docutils literal notranslate"><span class="pre">filled</span></code> set to <code class="docutils literal notranslate"><span class="pre">True</span></code>
(the default value), there is no change in behavior. For those rare cases where
<code class="docutils literal notranslate"><span class="pre">Path.intersects_bbox</span></code> was called with <code class="docutils literal notranslate"><span class="pre">filled</span></code> set to <code class="docutils literal notranslate"><span class="pre">False</span></code> and where
the old behavior is actually desired, the suggested workaround is to call
<code class="docutils literal notranslate"><span class="pre">Path.intersects_path</span></code> with a rectangle as the path:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">matplotlib.path</span> <span class="kn">import</span> <span class="n">Path</span>
<span class="kn">from</span> <span class="nn">matplotlib.transforms</span> <span class="kn">import</span> <span class="n">Bbox</span><span class="p">,</span> <span class="n">BboxTransformTo</span>
<span class="n">rect</span> <span class="o">=</span> <span class="n">Path</span><span class="o">.</span><span class="n">unit_rectangle</span><span class="p">()</span><span class="o">.</span><span class="n">transformed</span><span class="p">(</span><span class="n">BboxTransformTo</span><span class="p">(</span><span class="n">bbox</span><span class="p">))</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">intersects_path</span><span class="p">(</span><span class="n">rect</span><span class="p">,</span> <span class="n">filled</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="wx-no-longer-calls-generates-idleevent-events-or-calls-idle-event">
<h2>WX no longer calls generates <code class="docutils literal notranslate"><span class="pre">IdleEvent</span></code> events or calls <code class="docutils literal notranslate"><span class="pre">idle_event</span></code><a class="headerlink" href="#wx-no-longer-calls-generates-idleevent-events-or-calls-idle-event" title="Permalink to this headline">¶</a></h2>
<p>Removed unused private method <code class="docutils literal notranslate"><span class="pre">_onIdle</span></code> from <code class="docutils literal notranslate"><span class="pre">FigureCanvasWx</span></code>.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">IdleEvent</span></code> class and <code class="docutils literal notranslate"><span class="pre">FigureCanvasBase.idle_event</span></code> method
will be removed in 2.2</p>
</div>
<div class="section" id="correct-scaling-of-magnitude-spectrum">
<h2>Correct scaling of <code class="docutils literal notranslate"><span class="pre">magnitude_spectrum()</span></code><a class="headerlink" href="#correct-scaling-of-magnitude-spectrum" title="Permalink to this headline">¶</a></h2>
<p>The functions <a class="reference internal" href="../mlab_api.html#matplotlib.mlab.magnitude_spectrum" title="matplotlib.mlab.magnitude_spectrum"><code class="xref py py-func docutils literal notranslate"><span class="pre">matplotlib.mlab.magnitude_spectrum()</span></code></a> and <a class="reference internal" href="../_as_gen/matplotlib.pyplot.magnitude_spectrum.html#matplotlib.pyplot.magnitude_spectrum" title="matplotlib.pyplot.magnitude_spectrum"><code class="xref py py-func docutils literal notranslate"><span class="pre">matplotlib.pyplot.magnitude_spectrum()</span></code></a> implicitly assumed the sum
of windowing function values to be one. In Matplotlib and Numpy the
standard windowing functions are scaled to have maximum value of one,
which usually results in a sum of the order of n/2 for a n-point
signal. Thus the amplitude scaling <code class="docutils literal notranslate"><span class="pre">magnitude_spectrum()</span></code> was
off by that amount when using standard windowing functions (<a class="reference external" href="https://github.com/matplotlib/matplotlib/issues/8417">Bug 8417</a> ). Now the
behavior is consistent with <a class="reference internal" href="../_as_gen/matplotlib.pyplot.psd.html#matplotlib.pyplot.psd" title="matplotlib.pyplot.psd"><code class="xref py py-func docutils literal notranslate"><span class="pre">matplotlib.pyplot.psd()</span></code></a> and
<a class="reference external" href="https://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.welch.html#scipy.signal.welch" title="(in SciPy v1.6.1)"><code class="xref py py-func docutils literal notranslate"><span class="pre">scipy.signal.welch()</span></code></a>. The following example demonstrates the
new and old scaling:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="k">as</span> <span class="nn">plt</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
<span class="n">tau</span><span class="p">,</span> <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">1024</span> <span class="c1"># 10 second signal with 1024 points</span>
<span class="n">T</span> <span class="o">=</span> <span class="n">tau</span><span class="o">/</span><span class="n">n</span> <span class="c1"># sampling interval</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="n">n</span><span class="p">)</span><span class="o">*</span><span class="n">T</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">4</span> <span class="c1"># amplitude</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">a</span><span class="o">*</span><span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="mi">40</span><span class="o">*</span><span class="n">np</span><span class="o">.</span><span class="n">pi</span><span class="o">*</span><span class="n">t</span><span class="p">)</span> <span class="c1"># 20 Hz sine with amplitude a</span>
<span class="c1"># New correct behavior: Amplitude at 20 Hz is a/2</span>
<span class="n">plt</span><span class="o">.</span><span class="n">magnitude_spectrum</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">Fs</span><span class="o">=</span><span class="mi">1</span><span class="o">/</span><span class="n">T</span><span class="p">,</span> <span class="n">sides</span><span class="o">=</span><span class="s1">'onesided'</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="s1">'linear'</span><span class="p">)</span>
<span class="c1"># Original behavior: Amplitude at 20 Hz is (a/2)*(n/2) for a Hanning window</span>
<span class="n">w</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">hanning</span><span class="p">(</span><span class="n">n</span><span class="p">)</span> <span class="c1"># default window is a Hanning window</span>
<span class="n">plt</span><span class="o">.</span><span class="n">magnitude_spectrum</span><span class="p">(</span><span class="n">x</span><span class="o">*</span><span class="n">np</span><span class="o">.</span><span class="n">sum</span><span class="p">(</span><span class="n">w</span><span class="p">),</span> <span class="n">Fs</span><span class="o">=</span><span class="mi">1</span><span class="o">/</span><span class="n">T</span><span class="p">,</span> <span class="n">sides</span><span class="o">=</span><span class="s1">'onesided'</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="s1">'linear'</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="change-to-signatures-of-bar-barh">
<h2>Change to signatures of <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.bar.html#matplotlib.axes.Axes.bar" title="matplotlib.axes.Axes.bar"><code class="xref py py-meth docutils literal notranslate"><span class="pre">bar()</span></code></a> & <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.barh.html#matplotlib.axes.Axes.barh" title="matplotlib.axes.Axes.barh"><code class="xref py py-meth docutils literal notranslate"><span class="pre">barh()</span></code></a><a class="headerlink" href="#change-to-signatures-of-bar-barh" title="Permalink to this headline">¶</a></h2>
<p>For 2.0 the <a class="reference internal" href="../../users/dflt_style_changes.html#barbarh-align"><span class="std std-ref">default value of *align*</span></a> changed to
<code class="docutils literal notranslate"><span class="pre">'center'</span></code>. However this caused the signature of
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.bar.html#matplotlib.axes.Axes.bar" title="matplotlib.axes.Axes.bar"><code class="xref py py-meth docutils literal notranslate"><span class="pre">bar()</span></code></a> and
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.barh.html#matplotlib.axes.Axes.barh" title="matplotlib.axes.Axes.barh"><code class="xref py py-meth docutils literal notranslate"><span class="pre">barh()</span></code></a> to be misleading as the first parameters were
still <em>left</em> and <em>bottom</em> respectively:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">bar</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">align</span><span class="o">=</span><span class="s1">'center'</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="n">barh</span><span class="p">(</span><span class="n">bottom</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">align</span><span class="o">=</span><span class="s1">'center'</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</pre></div>
</div>
<p>despite behaving as the center in both cases. The methods now take
<code class="docutils literal notranslate"><span class="pre">*args,</span> <span class="pre">**kwargs</span></code> as input and are documented to have the primary
signatures of:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">bar</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">align</span><span class="o">=</span><span class="s1">'center'</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="n">barh</span><span class="p">(</span><span class="n">y</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">align</span><span class="o">=</span><span class="s1">'center'</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</pre></div>
</div>
<p>Passing <em>left</em> and <em>bottom</em> as keyword arguments to
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.bar.html#matplotlib.axes.Axes.bar" title="matplotlib.axes.Axes.bar"><code class="xref py py-meth docutils literal notranslate"><span class="pre">bar()</span></code></a> and
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.barh.html#matplotlib.axes.Axes.barh" title="matplotlib.axes.Axes.barh"><code class="xref py py-meth docutils literal notranslate"><span class="pre">barh()</span></code></a> respectively will warn.
Support will be removed in Matplotlib 3.0.</p>
</div>
<div class="section" id="font-cache-as-json">
<h2>Font cache as json<a class="headerlink" href="#font-cache-as-json" title="Permalink to this headline">¶</a></h2>
<p>The font cache is now saved as json, rather than a pickle.</p>
</div>
<div class="section" id="invalid-non-finite-axis-limit-error">
<h2>Invalid (Non-finite) Axis Limit Error<a class="headerlink" href="#invalid-non-finite-axis-limit-error" title="Permalink to this headline">¶</a></h2>
<p>When using <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.set_xlim.html#matplotlib.axes.Axes.set_xlim" title="matplotlib.axes.Axes.set_xlim"><code class="xref py py-func docutils literal notranslate"><span class="pre">set_xlim()</span></code></a> and
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.set_ylim.html#matplotlib.axes.Axes.set_ylim" title="matplotlib.axes.Axes.set_ylim"><code class="xref py py-func docutils literal notranslate"><span class="pre">set_ylim()</span></code></a>, passing non-finite values now
results in a <code class="docutils literal notranslate"><span class="pre">ValueError</span></code>. The previous behavior resulted in the
limits being erroneously reset to <code class="docutils literal notranslate"><span class="pre">(-0.001,</span> <span class="pre">0.001)</span></code>.</p>
</div>
<div class="section" id="scatter-and-collection-offsets-are-no-longer-implicitly-flattened">
<h2><code class="docutils literal notranslate"><span class="pre">scatter</span></code> and <code class="docutils literal notranslate"><span class="pre">Collection</span></code> offsets are no longer implicitly flattened<a class="headerlink" href="#scatter-and-collection-offsets-are-no-longer-implicitly-flattened" title="Permalink to this headline">¶</a></h2>
<p><a class="reference internal" href="../collections_api.html#matplotlib.collections.Collection" title="matplotlib.collections.Collection"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Collection</span></code></a> (and thus both 2D
<a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.scatter.html#matplotlib.axes.Axes.scatter" title="matplotlib.axes.Axes.scatter"><code class="xref py py-obj docutils literal notranslate"><span class="pre">scatter</span></code></a> and 3D
<a class="reference internal" href="../_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.html#mpl_toolkits.mplot3d.axes3d.Axes3D.scatter" title="mpl_toolkits.mplot3d.axes3d.Axes3D.scatter"><code class="xref py py-obj docutils literal notranslate"><span class="pre">scatter</span></code></a>) no
longer implicitly flattens its offsets. As a consequence, <code class="docutils literal notranslate"><span class="pre">scatter</span></code>'s <code class="docutils literal notranslate"><span class="pre">x</span></code>
and <code class="docutils literal notranslate"><span class="pre">y</span></code> arguments can no longer be 2+-dimensional arrays.</p>
</div>
<div class="section" id="deprecations">
<h2>Deprecations<a class="headerlink" href="#deprecations" title="Permalink to this headline">¶</a></h2>
<div class="section" id="graphicscontextbase-s-linestyle-property">
<h3><code class="docutils literal notranslate"><span class="pre">GraphicsContextBase</span></code>'s <code class="docutils literal notranslate"><span class="pre">linestyle</span></code> property.<a class="headerlink" href="#graphicscontextbase-s-linestyle-property" title="Permalink to this headline">¶</a></h3>
<p>The <code class="docutils literal notranslate"><span class="pre">GraphicsContextBase.get_linestyle</span></code> and
<code class="docutils literal notranslate"><span class="pre">GraphicsContextBase.set_linestyle</span></code> methods, which had no effect,
have been deprecated. All of the backends Matplotlib ships use
<code class="docutils literal notranslate"><span class="pre">GraphicsContextBase.get_dashes</span></code> and
<code class="docutils literal notranslate"><span class="pre">GraphicsContextBase.set_dashes</span></code> which are more general.
Third-party backends should also migrate to the <code class="docutils literal notranslate"><span class="pre">*_dashes</span></code> methods.</p>
</div>
<div class="section" id="navigationtoolbar2-dynamic-update">
<h3><code class="docutils literal notranslate"><span class="pre">NavigationToolbar2.dynamic_update</span></code><a class="headerlink" href="#navigationtoolbar2-dynamic-update" title="Permalink to this headline">¶</a></h3>
<p>Use <a class="reference internal" href="../backend_bases_api.html#matplotlib.backend_bases.FigureCanvasBase.draw_idle" title="matplotlib.backend_bases.FigureCanvasBase.draw_idle"><code class="xref py py-meth docutils literal notranslate"><span class="pre">draw_idle()</span></code></a> method on the <code class="docutils literal notranslate"><span class="pre">Canvas</span></code> instance instead.</p>
</div>
<div class="section" id="testing">
<h3>Testing<a class="headerlink" href="#testing" title="Permalink to this headline">¶</a></h3>
<p><code class="docutils literal notranslate"><span class="pre">matplotlib.testing.noseclasses</span></code> is deprecated and will be removed in 2.3</p>
</div>
<div class="section" id="engformatter-num-arg-as-string">
<h3><code class="docutils literal notranslate"><span class="pre">EngFormatter</span></code> <em>num</em> arg as string<a class="headerlink" href="#engformatter-num-arg-as-string" title="Permalink to this headline">¶</a></h3>
<p>Passing a string as <em>num</em> argument when calling an instance of
<a class="reference internal" href="../ticker_api.html#matplotlib.ticker.EngFormatter" title="matplotlib.ticker.EngFormatter"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.ticker.EngFormatter</span></code></a> is deprecated and will be removed in 2.3.</p>
</div>
<div class="section" id="mpl-toolkits-axes-grid-module">
<h3><code class="docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid</span></code> module<a class="headerlink" href="#mpl-toolkits-axes-grid-module" title="Permalink to this headline">¶</a></h3>
<p>All functionally from <code class="docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid</span></code> can be found in either
<a class="reference internal" href="../toolkits/axes_grid1.html#module-mpl_toolkits.axes_grid1" title="mpl_toolkits.axes_grid1"><code class="xref py py-obj docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid1</span></code></a> or <a class="reference internal" href="../toolkits/axisartist.html#module-mpl_toolkits.axisartist" title="mpl_toolkits.axisartist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">mpl_toolkits.axisartist</span></code></a>. Axes classes
from <code class="docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid</span></code> based on <code class="docutils literal notranslate"><span class="pre">Axis</span></code> from
<a class="reference internal" href="../toolkits/axisartist.html#module-mpl_toolkits.axisartist" title="mpl_toolkits.axisartist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">mpl_toolkits.axisartist</span></code></a> can be found in <a class="reference internal" href="../toolkits/axisartist.html#module-mpl_toolkits.axisartist" title="mpl_toolkits.axisartist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">mpl_toolkits.axisartist</span></code></a>.</p>
</div>
<div class="section" id="axes-collision-in-figure-add-axes">
<h3><code class="docutils literal notranslate"><span class="pre">Axes</span></code> collision in <code class="docutils literal notranslate"><span class="pre">Figure.add_axes</span></code><a class="headerlink" href="#axes-collision-in-figure-add-axes" title="Permalink to this headline">¶</a></h3>
<p>Adding an axes instance to a figure by using the same arguments as for
a previous axes instance currently reuses the earlier instance. This
behavior has been deprecated in Matplotlib 2.1. In a future version, a
<em>new</em> instance will always be created and returned. Meanwhile, in such
a situation, a deprecation warning is raised by
<code class="docutils literal notranslate"><span class="pre">matplotlib.figure.AxesStack</span></code>.</p>
<p>This warning can be suppressed, and the future behavior ensured, by passing
a <em>unique</em> label to each axes instance. See the docstring of
<a class="reference internal" href="../figure_api.html#matplotlib.figure.Figure.add_axes" title="matplotlib.figure.Figure.add_axes"><code class="xref py py-meth docutils literal notranslate"><span class="pre">add_axes()</span></code></a> for more information.</p>
<p>Additional details on the rationale behind this deprecation can be found
in <a class="reference external" href="https://github.com/matplotlib/matplotlib/issues/7377/">#7377</a> and <a class="reference external" href="https://github.com/matplotlib/matplotlib/issues/9024/">#9024</a>.</p>
</div>
<div class="section" id="former-validators-for-contour-negative-linestyle">
<h3>Former validators for <code class="docutils literal notranslate"><span class="pre">contour.negative_linestyle</span></code><a class="headerlink" href="#former-validators-for-contour-negative-linestyle" title="Permalink to this headline">¶</a></h3>
<p>The former public validation functions <code class="docutils literal notranslate"><span class="pre">validate_negative_linestyle</span></code>
and <code class="docutils literal notranslate"><span class="pre">validate_negative_linestyle_legacy</span></code> will be deprecated in 2.1 and
may be removed in 2.3. There are no public functions to replace them.</p>
</div>
<div class="section" id="cbook">
<h3><code class="docutils literal notranslate"><span class="pre">cbook</span></code><a class="headerlink" href="#cbook" title="Permalink to this headline">¶</a></h3>
<p>Many unused or near-unused <a class="reference internal" href="../cbook_api.html#module-matplotlib.cbook" title="matplotlib.cbook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">matplotlib.cbook</span></code></a> functions and
classes have been deprecated: <code class="docutils literal notranslate"><span class="pre">converter</span></code>, <code class="docutils literal notranslate"><span class="pre">tostr</span></code>,
<code class="docutils literal notranslate"><span class="pre">todatetime</span></code>, <code class="docutils literal notranslate"><span class="pre">todate</span></code>, <code class="docutils literal notranslate"><span class="pre">tofloat</span></code>, <code class="docutils literal notranslate"><span class="pre">toint</span></code>, <code class="docutils literal notranslate"><span class="pre">unique</span></code>,
<code class="docutils literal notranslate"><span class="pre">is_string_like</span></code>, <code class="docutils literal notranslate"><span class="pre">is_sequence_of_strings</span></code>, <code class="docutils literal notranslate"><span class="pre">is_scalar</span></code>,
<code class="docutils literal notranslate"><span class="pre">Sorter</span></code>, <code class="docutils literal notranslate"><span class="pre">Xlator</span></code>, <code class="docutils literal notranslate"><span class="pre">soundex</span></code>, <code class="docutils literal notranslate"><span class="pre">Null</span></code>, <code class="docutils literal notranslate"><span class="pre">dict_delall</span></code>,
<code class="docutils literal notranslate"><span class="pre">RingBuffer</span></code>, <code class="docutils literal notranslate"><span class="pre">get_split_ind</span></code>, <code class="docutils literal notranslate"><span class="pre">wrap</span></code>,
<code class="docutils literal notranslate"><span class="pre">get_recursive_filelist</span></code>, <code class="docutils literal notranslate"><span class="pre">pieces</span></code>, <code class="docutils literal notranslate"><span class="pre">exception_to_str</span></code>,
<code class="docutils literal notranslate"><span class="pre">allequal</span></code>, <code class="docutils literal notranslate"><span class="pre">alltrue</span></code>, <code class="docutils literal notranslate"><span class="pre">onetrue</span></code>, <code class="docutils literal notranslate"><span class="pre">allpairs</span></code>, <code class="docutils literal notranslate"><span class="pre">finddir</span></code>,
<code class="docutils literal notranslate"><span class="pre">reverse_dict</span></code>, <code class="docutils literal notranslate"><span class="pre">restrict_dict</span></code>, <code class="docutils literal notranslate"><span class="pre">issubclass_safe</span></code>,
<code class="docutils literal notranslate"><span class="pre">recursive_remove</span></code>, <code class="docutils literal notranslate"><span class="pre">unmasked_index_ranges</span></code>.</p>
</div>
</div>
<div class="section" id="code-removal">
<h2>Code Removal<a class="headerlink" href="#code-removal" title="Permalink to this headline">¶</a></h2>
<div class="section" id="qt4-compat-py">
<h3>qt4_compat.py<a class="headerlink" href="#qt4-compat-py" title="Permalink to this headline">¶</a></h3>
<p>Moved to <code class="docutils literal notranslate"><span class="pre">qt_compat.py</span></code>. Renamed because it now handles Qt5 as well.</p>
</div>
<div class="section" id="previously-deprecated-methods">
<h3>Previously Deprecated methods<a class="headerlink" href="#previously-deprecated-methods" title="Permalink to this headline">¶</a></h3>
<p>The <code class="docutils literal notranslate"><span class="pre">GraphicsContextBase.set_graylevel</span></code>, <code class="docutils literal notranslate"><span class="pre">FigureCanvasBase.onHilite</span></code> and
<code class="docutils literal notranslate"><span class="pre">mpl_toolkits.axes_grid1.mpl_axes.Axes.toggle_axisline</span></code> methods have been
removed.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">ArtistInspector.findobj</span></code> method, which was never working due to the lack
of a <code class="docutils literal notranslate"><span class="pre">get_children</span></code> method, has been removed.</p>
<p>The deprecated <code class="docutils literal notranslate"><span class="pre">point_in_path</span></code>, <code class="docutils literal notranslate"><span class="pre">get_path_extents</span></code>,
<code class="docutils literal notranslate"><span class="pre">point_in_path_collection</span></code>, <code class="docutils literal notranslate"><span class="pre">path_intersects_path</span></code>,
<code class="docutils literal notranslate"><span class="pre">convert_path_to_polygons</span></code>, <code class="docutils literal notranslate"><span class="pre">cleanup_path</span></code> and <code class="docutils literal notranslate"><span class="pre">clip_path_to_rect</span></code>
functions in the <code class="docutils literal notranslate"><span class="pre">matplotlib.path</span></code> module have been removed. Their
functionality remains exposed as methods on the <code class="docutils literal notranslate"><span class="pre">Path</span></code> class.</p>
<p>The deprecated <code class="docutils literal notranslate"><span class="pre">Artist.get_axes</span></code> and <code class="docutils literal notranslate"><span class="pre">Artist.set_axes</span></code> methods
have been removed</p>
<p>The <code class="docutils literal notranslate"><span class="pre">matplotlib.backends.backend_ps.seq_allequal</span></code> function has been removed.
Use <code class="docutils literal notranslate"><span class="pre">np.array_equal</span></code> instead.</p>
<p>The deprecated <code class="docutils literal notranslate"><span class="pre">matplotlib.rcsetup.validate_maskedarray</span></code>,
<code class="docutils literal notranslate"><span class="pre">matplotlib.rcsetup.deprecate_savefig_extension</span></code> and
<code class="docutils literal notranslate"><span class="pre">matplotlib.rcsetup.validate_tkpythoninspect</span></code> functions, and associated
<code class="docutils literal notranslate"><span class="pre">savefig.extension</span></code> and <code class="docutils literal notranslate"><span class="pre">tk.pythoninspect</span></code> rcparams entries have been
removed.</p>
<p>The keyword argument <em>resolution</em> of
<a class="reference internal" href="../projections_api.html#matplotlib.projections.polar.PolarAxes" title="matplotlib.projections.polar.PolarAxes"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.projections.polar.PolarAxes</span></code></a> has been removed. It
has deprecation with no effect from version <em>0.98.x</em>.</p>
</div>
<div class="section" id="axes-set-aspect-normal">
<h3><code class="docutils literal notranslate"><span class="pre">Axes.set_aspect("normal")</span></code><a class="headerlink" href="#axes-set-aspect-normal" title="Permalink to this headline">¶</a></h3>
<p>Support for setting an <code class="docutils literal notranslate"><span class="pre">Axes</span></code>'s aspect to <code class="docutils literal notranslate"><span class="pre">"normal"</span></code> has been
removed, in favor of the synonym <code class="docutils literal notranslate"><span class="pre">"auto"</span></code>.</p>
</div>
<div class="section" id="shading-kwarg-to-pcolor">
<h3><code class="docutils literal notranslate"><span class="pre">shading</span></code> kwarg to <code class="docutils literal notranslate"><span class="pre">pcolor</span></code><a class="headerlink" href="#shading-kwarg-to-pcolor" title="Permalink to this headline">¶</a></h3>
<p>The <code class="docutils literal notranslate"><span class="pre">shading</span></code> kwarg to <a class="reference internal" href="../_as_gen/matplotlib.axes.Axes.pcolor.html#matplotlib.axes.Axes.pcolor" title="matplotlib.axes.Axes.pcolor"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pcolor</span></code></a> has been
removed. Set <code class="docutils literal notranslate"><span class="pre">edgecolors</span></code> appropriately instead.</p>
</div>
<div class="section" id="functions-removed-from-the-lines-module">
<h3>Functions removed from the <a class="reference internal" href="../lines_api.html#module-matplotlib.lines" title="matplotlib.lines"><code class="xref py py-obj docutils literal notranslate"><span class="pre">lines</span></code></a> module<a class="headerlink" href="#functions-removed-from-the-lines-module" title="Permalink to this headline">¶</a></h3>
<p>The <a class="reference internal" href="../lines_api.html#module-matplotlib.lines" title="matplotlib.lines"><code class="xref py py-mod docutils literal notranslate"><span class="pre">matplotlib.lines</span></code></a> module no longer imports the
<code class="docutils literal notranslate"><span class="pre">pts_to_prestep</span></code>, <code class="docutils literal notranslate"><span class="pre">pts_to_midstep</span></code> and <code class="docutils literal notranslate"><span class="pre">pts_to_poststep</span></code>
functions from <a class="reference internal" href="../cbook_api.html#module-matplotlib.cbook" title="matplotlib.cbook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">matplotlib.cbook</span></code></a>.</p>
</div>
<div class="section" id="pdf-backend-functions">
<h3>PDF backend functions<a class="headerlink" href="#pdf-backend-functions" title="Permalink to this headline">¶</a></h3>
<p>The methods <code class="docutils literal notranslate"><span class="pre">embedTeXFont</span></code> and <code class="docutils literal notranslate"><span class="pre">tex_font_mapping</span></code> of
<a class="reference internal" href="../backend_pdf_api.html#matplotlib.backends.backend_pdf.PdfFile" title="matplotlib.backends.backend_pdf.PdfFile"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.backends.backend_pdf.PdfFile</span></code></a> have been removed. It is
unlikely that external users would have called these methods, which
are related to the font system internal to the PDF backend.</p>
</div>
<div class="section" id="matplotlib-delaunay">
<h3>matplotlib.delaunay<a class="headerlink" href="#matplotlib-delaunay" title="Permalink to this headline">¶</a></h3>
<p>Remove the delaunay triangulation code which is now handled by Qhull
via <a class="reference internal" href="../tri_api.html#module-matplotlib.tri" title="matplotlib.tri"><code class="xref py py-mod docutils literal notranslate"><span class="pre">matplotlib.tri</span></code></a>.</p>
</div>
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