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<h3><a href="../contents.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">API Changes</a><ul>
<li><a class="reference internal" href="#changes-in-1-5-0">Changes in 1.5.0</a><ul>
<li><a class="reference internal" href="#code-changes">Code Changes</a><ul>
<li><a class="reference internal" href="#split-matplotlib-cbook-ls-mapper-in-two">Split <code class="docutils literal"><span class="pre">matplotlib.cbook.ls_mapper</span></code> in two</a></li>
<li><a class="reference internal" href="#prevent-moving-artists-between-axes-property-ify-artist-axes-deprecate-artist-get-set-axes">Prevent moving artists between Axes, Property-ify Artist.axes, deprecate Artist.{get,set}_axes</a></li>
<li><a class="reference internal" href="#tighted-input-validation-on-pivot-kwarg-to-quiver">Tighted input validation on ‘pivot’ kwarg to quiver</a></li>
<li><a class="reference internal" href="#reordered-axes-get-children">Reordered <code class="docutils literal"><span class="pre">Axes.get_children</span></code></a></li>
<li><a class="reference internal" href="#changed-behaviour-of-contour-plots">Changed behaviour of contour plots</a></li>
<li><a class="reference internal" href="#added-set-params-function-to-all-locator-types">Added set_params function to all Locator types</a></li>
<li><a class="reference internal" href="#disallow-none-as-x-or-y-value-in-ax-plot">Disallow <code class="docutils literal"><span class="pre">None</span></code> as x or y value in ax.plot</a></li>
<li><a class="reference internal" href="#removed-args-and-kwargs-from-microsecondlocator-call">Removed <code class="docutils literal"><span class="pre">args</span></code> and <code class="docutils literal"><span class="pre">kwargs</span></code> from <code class="docutils literal"><span class="pre">MicrosecondLocator.__call__</span></code></a></li>
<li><a class="reference internal" href="#no-valueerror-for-the-microsecondlocator-and-yearlocator">No <code class="docutils literal"><span class="pre">ValueError</span></code> for the MicrosecondLocator and YearLocator</a></li>
<li><a class="reference internal" href="#offsetbox-drawingarea-respects-the-clip-keyword-argument">‘OffsetBox.DrawingArea’ respects the ‘clip’ keyword argument</a></li>
<li><a class="reference internal" href="#add-salt-to-clippath-id">Add salt to clipPath id</a></li>
<li><a class="reference internal" href="#changed-snap-threshold-for-circle-markers-to-inf">Changed snap threshold for circle markers to inf</a></li>
<li><a class="reference internal" href="#preserve-units-with-text-position">Preserve units with Text position</a></li>
<li><a class="reference internal" href="#new-api-for-custom-axes-view-changes">New API for custom Axes view changes</a></li>
</ul>
</li>
<li><a class="reference internal" href="#mathtex-visual-changes">MathTex visual changes</a><ul>
<li><a class="reference internal" href="#improved-spacing-in-mathtext">Improved spacing in mathtext</a></li>
<li><a class="reference internal" href="#no-annotation-coordinates-wrap">No annotation coordinates wrap</a></li>
</ul>
</li>
<li><a class="reference internal" href="#deprecation">Deprecation</a><ul>
<li><a class="reference internal" href="#deprecated-graphicscontextbase-set-graylevel">Deprecated <code class="docutils literal"><span class="pre">GraphicsContextBase.set_graylevel</span></code></a></li>
<li><a class="reference internal" href="#deprecated-idle-event">deprecated idle_event</a></li>
<li><a class="reference internal" href="#color-cycle-deprecated"><code class="docutils literal"><span class="pre">color_cycle</span></code> deprecated</a></li>
</ul>
</li>
<li><a class="reference internal" href="#bundled-jquery">Bundled jquery</a></li>
<li><a class="reference internal" href="#code-removed">Code Removed</a><ul>
<li><a class="reference internal" href="#removed-image-from-main-namespace">Removed <code class="docutils literal"><span class="pre">Image</span></code> from main namespace</a></li>
<li><a class="reference internal" href="#removed-lod-from-artist">Removed <code class="docutils literal"><span class="pre">lod</span></code> from Artist</a></li>
<li><a class="reference internal" href="#removed-threading-related-classes-from-cbook">Removed threading related classes from cbook</a></li>
<li><a class="reference internal" href="#removed-lena-images-from-sample-data">Removed <code class="docutils literal"><span class="pre">Lena</span></code> images from sample_data</a></li>
<li><a class="reference internal" href="#legend">Legend</a></li>
<li><a class="reference internal" href="#legend-handlers">Legend handlers</a></li>
<li><a class="reference internal" href="#axis">Axis</a></li>
<li><a class="reference internal" href="#finance-py">finance.py</a></li>
<li><a class="reference internal" href="#annotation">Annotation</a></li>
<li><a class="reference internal" href="#spinxext-ipython-py">spinxext.ipython_*.py</a></li>
<li><a class="reference internal" href="#linecollection-color">LineCollection.color</a></li>
<li><a class="reference internal" href="#remove-faceted-as-a-valid-value-for-shading-in-tri-tripcolor">remove <code class="docutils literal"><span class="pre">'faceted'</span></code> as a valid value for <code class="docutils literal"><span class="pre">shading</span></code> in <code class="docutils literal"><span class="pre">tri.tripcolor</span></code></a></li>
<li><a class="reference internal" href="#remove-faceted-kwarg-from-scatter">Remove <code class="docutils literal"><span class="pre">faceted</span></code> kwarg from scatter</a></li>
<li><a class="reference internal" href="#remove-set-colorbar-method-from-scalarmappable">Remove <code class="docutils literal"><span class="pre">set_colorbar</span></code> method from <code class="docutils literal"><span class="pre">ScalarMappable</span></code></a></li>
<li><a class="reference internal" href="#patheffects-svg">patheffects.svg</a></li>
<li><a class="reference internal" href="#remove-testing-image-util-py">Remove <code class="docutils literal"><span class="pre">testing.image_util.py</span></code></a></li>
<li><a class="reference internal" href="#remove-mlab-fifobuffer">Remove <code class="docutils literal"><span class="pre">mlab.FIFOBuffer</span></code></a></li>
<li><a class="reference internal" href="#remove-mlab-prepca">Remove <code class="docutils literal"><span class="pre">mlab.prepca</span></code></a></li>
<li><a class="reference internal" href="#remove-navigationtoolbar2qtagg">Remove <code class="docutils literal"><span class="pre">NavigationToolbar2QTAgg</span></code></a></li>
<li><a class="reference internal" href="#mpl-py">mpl.py</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#changes-in-1-4-x">Changes in 1.4.x</a><ul>
<li><a class="reference internal" href="#id1">Code changes</a></li>
<li><a class="reference internal" href="#code-removal">Code removal</a></li>
</ul>
</li>
<li><a class="reference internal" href="#changes-in-1-3-x">Changes in 1.3.x</a><ul>
<li><a class="reference internal" href="#changes-in-1-3-1">Changes in 1.3.1</a></li>
<li><a class="reference internal" href="#id2">Code removal</a></li>
<li><a class="reference internal" href="#code-deprecation">Code deprecation</a></li>
<li><a class="reference internal" href="#id3">Code changes</a></li>
<li><a class="reference internal" href="#configuration-and-rcparams">Configuration and rcParams</a></li>
</ul>
</li>
<li><a class="reference internal" href="#changes-in-1-2-x">Changes in 1.2.x</a></li>
<li><a class="reference internal" href="#changes-in-1-1-x">Changes in 1.1.x</a></li>
<li><a class="reference internal" href="#changes-beyond-0-99-x">Changes beyond 0.99.x</a></li>
<li><a class="reference internal" href="#changes-in-0-99">Changes in 0.99</a></li>
<li><a class="reference internal" href="#changes-for-0-98-x">Changes for 0.98.x</a></li>
<li><a class="reference internal" href="#changes-for-0-98-1">Changes for 0.98.1</a></li>
<li><a class="reference internal" href="#changes-for-0-98-0">Changes for 0.98.0</a><ul>
<li><a class="reference internal" href="#notes-about-the-transforms-refactoring">Notes about the transforms refactoring</a><ul>
<li><a class="reference internal" href="#matplotlib-transforms"><code class="docutils literal"><span class="pre">matplotlib.transforms</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-axes"><code class="docutils literal"><span class="pre">matplotlib.axes</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-artist"><code class="docutils literal"><span class="pre">matplotlib.artist</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-collections"><code class="docutils literal"><span class="pre">matplotlib.collections</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-colors"><code class="docutils literal"><span class="pre">matplotlib.colors</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-contour"><code class="docutils literal"><span class="pre">matplotlib.contour</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-figure"><code class="docutils literal"><span class="pre">matplotlib.figure</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-patches"><code class="docutils literal"><span class="pre">matplotlib.patches</span></code></a></li>
<li><a class="reference internal" href="#matplotlib-backend-bases"><code class="docutils literal"><span class="pre">matplotlib.backend_bases</span></code></a></li>
<li><a class="reference internal" href="#rendererbase"><code class="docutils literal"><span class="pre">RendererBase</span></code></a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#changes-for-0-91-2">Changes for 0.91.2</a></li>
<li><a class="reference internal" href="#changes-for-0-91-1">Changes for 0.91.1</a></li>
<li><a class="reference internal" href="#changes-for-0-91-0">Changes for 0.91.0</a></li>
<li><a class="reference internal" href="#changes-for-0-90-1">Changes for 0.90.1</a></li>
<li><a class="reference internal" href="#changes-for-0-90-0">Changes for 0.90.0</a></li>
<li><a class="reference internal" href="#changes-for-0-87-7">Changes for 0.87.7</a></li>
<li><a class="reference internal" href="#changes-for-0-86">Changes for 0.86</a></li>
<li><a class="reference internal" href="#changes-for-0-85">Changes for 0.85</a></li>
<li><a class="reference internal" href="#changes-for-0-84">Changes for 0.84</a></li>
<li><a class="reference internal" href="#changes-for-0-83">Changes for 0.83</a></li>
<li><a class="reference internal" href="#changes-for-0-82">Changes for 0.82</a></li>
<li><a class="reference internal" href="#changes-for-0-81">Changes for 0.81</a></li>
<li><a class="reference internal" href="#changes-for-0-80">Changes for 0.80</a></li>
<li><a class="reference internal" href="#changes-for-0-73">Changes for 0.73</a></li>
<li><a class="reference internal" href="#changes-for-0-72">Changes for 0.72</a></li>
<li><a class="reference internal" href="#changes-for-0-71">Changes for 0.71</a></li>
<li><a class="reference internal" href="#changes-for-0-70">Changes for 0.70</a></li>
<li><a class="reference internal" href="#changes-for-0-65-1">Changes for 0.65.1</a></li>
<li><a class="reference internal" href="#changes-for-0-65">Changes for 0.65</a></li>
<li><a class="reference internal" href="#changes-for-0-63">Changes for 0.63</a></li>
<li><a class="reference internal" href="#changes-for-0-61">Changes for 0.61</a></li>
<li><a class="reference internal" href="#changes-for-0-60">Changes for 0.60</a></li>
<li><a class="reference internal" href="#changes-for-0-54-3">Changes for 0.54.3</a></li>
<li><a class="reference internal" href="#changes-for-0-54">Changes for 0.54</a><ul>
<li><a class="reference internal" href="#matlab-interface">MATLAB interface</a><ul>
<li><a class="reference internal" href="#dpi">dpi</a></li>
<li><a class="reference internal" href="#pcolor-and-scatter">pcolor and scatter</a></li>
<li><a class="reference internal" href="#mathtext-spacing">mathtext spacing</a></li>
</ul>
</li>
<li><a class="reference internal" href="#object-interface-application-programmers">Object interface - Application programmers</a><ul>
<li><a class="reference internal" href="#autoscaling">Autoscaling</a></li>
<li><a class="reference internal" href="#axes-creation">Axes creation</a></li>
<li><a class="reference internal" href="#artist-methods">Artist methods</a></li>
<li><a class="reference internal" href="#bounding-boxes">Bounding boxes</a></li>
<li><a class="reference internal" href="#object-constructors">Object constructors</a></li>
<li><a class="reference internal" href="#transformations">Transformations</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#changes-for-0-50">Changes for 0.50</a></li>
<li><a class="reference internal" href="#changes-for-0-42">Changes for 0.42</a></li>
<li><a class="reference internal" href="#changes-for-0-40">Changes for 0.40</a></li>
</ul>
</li>
</ul>
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<div class="section" id="api-changes">
<h1>API Changes<a class="headerlink" href="#api-changes" title="Permalink to this headline">¶</a></h1>
<p>Log of changes to matplotlib that affect the outward-facing API. If
updating matplotlib breaks your scripts, this list may help describe
what changes may be necessary in your code or help figure out possible
sources of the changes you are experiencing.</p>
<p>For new features that were added to matplotlib, please see
<a class="reference internal" href="../users/whats_new.html#whats-new"><span>What’s new in matplotlib</span></a>.</p>
<div class="section" id="changes-in-1-5-0">
<h2>Changes in 1.5.0<a class="headerlink" href="#changes-in-1-5-0" title="Permalink to this headline">¶</a></h2>
<div class="section" id="code-changes">
<h3>Code Changes<a class="headerlink" href="#code-changes" title="Permalink to this headline">¶</a></h3>
<div class="section" id="split-matplotlib-cbook-ls-mapper-in-two">
<h4>Split <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.cbook.ls_mapper</span></code> in two<a class="headerlink" href="#split-matplotlib-cbook-ls-mapper-in-two" title="Permalink to this headline">¶</a></h4>
<p>The <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.cbook.ls_mapper</span></code> dictionary is split into two now to
distinguish between qualified linestyle used by backends and
unqualified ones. <code class="xref py py-obj docutils literal"><span class="pre">ls_mapper</span></code> now maps from the short symbols
(e.g. <code class="xref py py-obj docutils literal"><span class="pre">"--"</span></code>) to qualified names (<code class="xref py py-obj docutils literal"><span class="pre">"solid"</span></code>). The new ls_mapper_r is
the reversed mapping.</p>
</div>
<div class="section" id="prevent-moving-artists-between-axes-property-ify-artist-axes-deprecate-artist-get-set-axes">
<h4>Prevent moving artists between Axes, Property-ify Artist.axes, deprecate Artist.{get,set}_axes<a class="headerlink" href="#prevent-moving-artists-between-axes-property-ify-artist-axes-deprecate-artist-get-set-axes" title="Permalink to this headline">¶</a></h4>
<p>The reason this was done was to prevent adding an Artist that is
already associated with an Axes to be moved/added to a different Axes.
This was never supported as it causes havoc with the transform stack.
The apparent support for this (as it did not raise an exception) was
the source of multiple bug reports and questions on SO.</p>
<p>For almost all use-cases, the assignment of the axes to an artist should be
taken care of by the axes as part of the <code class="docutils literal"><span class="pre">Axes.add_*</span></code> method, hence the
deprecation {get,set}_axes.</p>
<p>Removing the <code class="docutils literal"><span class="pre">set_axes</span></code> method will also remove the ‘axes’ line from
the ACCEPTS kwarg tables (assuming that the removal date gets here
before that gets overhauled).</p>
</div>
<div class="section" id="tighted-input-validation-on-pivot-kwarg-to-quiver">
<h4>Tighted input validation on ‘pivot’ kwarg to quiver<a class="headerlink" href="#tighted-input-validation-on-pivot-kwarg-to-quiver" title="Permalink to this headline">¶</a></h4>
<p>Tightened validation so that only {‘tip’, ‘tail’, ‘mid’, and ‘middle’}
(but any capitalization) are valid values for the ‘pivot’ kwarg in
the <code class="xref py py-obj docutils literal"><span class="pre">Quiver.__init__</span></code> (and hence <code class="xref py py-obj docutils literal"><span class="pre">Axes.quiver</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">plt.quiver</span></code> which both fully delegate to <code class="xref py py-obj docutils literal"><span class="pre">Quiver</span></code>). Previously any
input matching ‘mid.*’ would be interpreted as ‘middle’, ‘tip.*’ as
‘tip’ and any string not matching one of those patterns as ‘tail’.</p>
<p>The value of <code class="xref py py-obj docutils literal"><span class="pre">Quiver.pivot</span></code> is normalized to be in the set {‘tip’,
‘tail’, ‘middle’} in <code class="xref py py-obj docutils literal"><span class="pre">Quiver.__init__</span></code>.</p>
</div>
<div class="section" id="reordered-axes-get-children">
<h4>Reordered <code class="xref py py-obj docutils literal"><span class="pre">Axes.get_children</span></code><a class="headerlink" href="#reordered-axes-get-children" title="Permalink to this headline">¶</a></h4>
<p>The artist order returned by <code class="xref py py-obj docutils literal"><span class="pre">Axes.get_children</span></code> did not
match the one used by <code class="xref py py-obj docutils literal"><span class="pre">Axes.draw</span></code>. They now use the same
order, as <code class="xref py py-obj docutils literal"><span class="pre">Axes.draw</span></code> now calls <code class="xref py py-obj docutils literal"><span class="pre">Axes.get_children</span></code>.</p>
</div>
<div class="section" id="changed-behaviour-of-contour-plots">
<h4>Changed behaviour of contour plots<a class="headerlink" href="#changed-behaviour-of-contour-plots" title="Permalink to this headline">¶</a></h4>
<p>The default behaviour of <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.contour" title="matplotlib.pyplot.contour"><code class="xref py py-func docutils literal"><span class="pre">contour()</span></code></a> and
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.contourf" title="matplotlib.pyplot.contourf"><code class="xref py py-func docutils literal"><span class="pre">contourf()</span></code></a> when using a masked array is now determined
by the new keyword argument <code class="xref py py-obj docutils literal"><span class="pre">corner_mask</span></code>, or if this is not specified then
the new rcParam <code class="xref py py-obj docutils literal"><span class="pre">contour.corner_mask</span></code> instead. The new default behaviour is
equivalent to using <code class="xref py py-obj docutils literal"><span class="pre">corner_mask=True</span></code>; the previous behaviour can be obtained
using <code class="xref py py-obj docutils literal"><span class="pre">corner_mask=False</span></code> or by changing the rcParam. The example
<a class="reference external" href="http://matplotlib.org/examples/pylab_examples/contour_corner_mask.py">http://matplotlib.org/examples/pylab_examples/contour_corner_mask.py</a>
demonstrates the difference. Use of the old contouring algorithm, which is
obtained with <code class="xref py py-obj docutils literal"><span class="pre">corner_mask='legacy'</span></code>, is now deprecated.</p>
<p>Contour labels may now appear in different places than in earlier versions of
matplotlib.</p>
<p>In addition, the keyword argument <code class="xref py py-obj docutils literal"><span class="pre">nchunk</span></code> now applies to
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.contour" title="matplotlib.pyplot.contour"><code class="xref py py-func docutils literal"><span class="pre">contour()</span></code></a> as well as
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.contourf" title="matplotlib.pyplot.contourf"><code class="xref py py-func docutils literal"><span class="pre">contourf()</span></code></a>, and it subdivides the domain into
subdomains of exactly <code class="xref py py-obj docutils literal"><span class="pre">nchunk</span></code> by <code class="xref py py-obj docutils literal"><span class="pre">nchunk</span></code> quads, whereas previously it was
only roughly <code class="xref py py-obj docutils literal"><span class="pre">nchunk</span></code> by <code class="xref py py-obj docutils literal"><span class="pre">nchunk</span></code> quads.</p>
<p>The C/C++ object that performs contour calculations used to be stored in the
public attribute QuadContourSet.Cntr, but is now stored in a private attribute
and should not be accessed by end users.</p>
</div>
<div class="section" id="added-set-params-function-to-all-locator-types">
<h4>Added set_params function to all Locator types<a class="headerlink" href="#added-set-params-function-to-all-locator-types" title="Permalink to this headline">¶</a></h4>
<p>This was a bug fix targeted at making the api for Locators more consistent.</p>
<p>In the old behavior, only locators of type MaxNLocator have set_params()
defined, causing its use on any other Locator to throw an AttributeError <em>(
aside: set_params(args) is a function that sets the parameters of a Locator
instance to be as specified within args)</em>. The fix involves moving set_params()
to the Locator class such that all subtypes will have this function defined.</p>
<p>Since each of the Locator subtype have their own modifiable parameters, a
universal set_params() in Locator isn’t ideal. Instead, a default no-operation
function that raises a warning is implemented in Locator. Subtypes extending
Locator will then override with their own implementations. Subtypes that do
not have a need for set_params() will fall back onto their parent’s
implementation, which raises a warning as intended.</p>
<p>In the new behavior, all Locator instances will not throw an AttributeError
when set_param() is called. For Locators that do not implement set_params(),
the default implementation in Locator is used.</p>
</div>
<div class="section" id="disallow-none-as-x-or-y-value-in-ax-plot">
<h4>Disallow <code class="docutils literal"><span class="pre">None</span></code> as x or y value in ax.plot<a class="headerlink" href="#disallow-none-as-x-or-y-value-in-ax-plot" title="Permalink to this headline">¶</a></h4>
<p>Do not allow <code class="docutils literal"><span class="pre">None</span></code> as a valid input for the <code class="docutils literal"><span class="pre">x</span></code> or <code class="docutils literal"><span class="pre">y</span></code> args in
<code class="xref py py-obj docutils literal"><span class="pre">ax.plot</span></code>. This may break some user code, but this was never officially
supported (ex documented) and allowing <code class="docutils literal"><span class="pre">None</span></code> objects through can lead
to confusing exceptions downstream.</p>
<p>To create an empty line use</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ln1</span><span class="p">,</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">([],</span> <span class="p">[],</span> <span class="o">...</span><span class="p">)</span>
<span class="n">ln2</span><span class="p">,</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">([],</span> <span class="o">...</span><span class="p">)</span>
</pre></div>
</div>
<p>In either case to update the data in the <code class="xref py py-obj docutils literal"><span class="pre">Line2D</span></code> object you must update
both the <code class="docutils literal"><span class="pre">x</span></code> and <code class="docutils literal"><span class="pre">y</span></code> data.</p>
</div>
<div class="section" id="removed-args-and-kwargs-from-microsecondlocator-call">
<h4>Removed <code class="xref py py-obj docutils literal"><span class="pre">args</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">kwargs</span></code> from <code class="xref py py-obj docutils literal"><span class="pre">MicrosecondLocator.__call__</span></code><a class="headerlink" href="#removed-args-and-kwargs-from-microsecondlocator-call" title="Permalink to this headline">¶</a></h4>
<p>The call signature of <code class="xref py py-meth docutils literal"><span class="pre">__call__()</span></code>
has changed from <code class="xref py py-obj docutils literal"><span class="pre">__call__(self,</span> <span class="pre">*args,</span> <span class="pre">**kwargs)</span></code> to <code class="xref py py-obj docutils literal"><span class="pre">__call__(self)</span></code>.
This is consistent with the super class <a class="reference internal" href="ticker_api.html#matplotlib.ticker.Locator" title="matplotlib.ticker.Locator"><code class="xref py py-class docutils literal"><span class="pre">Locator</span></code></a>
and also all the other Locators derived from this super class.</p>
</div>
<div class="section" id="no-valueerror-for-the-microsecondlocator-and-yearlocator">
<h4>No <code class="xref py py-obj docutils literal"><span class="pre">ValueError</span></code> for the MicrosecondLocator and YearLocator<a class="headerlink" href="#no-valueerror-for-the-microsecondlocator-and-yearlocator" title="Permalink to this headline">¶</a></h4>
<p>The <a class="reference internal" href="dates_api.html#matplotlib.dates.MicrosecondLocator" title="matplotlib.dates.MicrosecondLocator"><code class="xref py py-class docutils literal"><span class="pre">MicrosecondLocator</span></code></a> and
<a class="reference internal" href="dates_api.html#matplotlib.dates.YearLocator" title="matplotlib.dates.YearLocator"><code class="xref py py-class docutils literal"><span class="pre">YearLocator</span></code></a> objects when called will return
an empty list if the axes have no data or the view has no interval.
Previously, they raised a <code class="xref py py-obj docutils literal"><span class="pre">ValueError</span></code>. This is consistent with all
the Date Locators.</p>
</div>
<div class="section" id="offsetbox-drawingarea-respects-the-clip-keyword-argument">
<h4>‘OffsetBox.DrawingArea’ respects the ‘clip’ keyword argument<a class="headerlink" href="#offsetbox-drawingarea-respects-the-clip-keyword-argument" title="Permalink to this headline">¶</a></h4>
<p>The call signature was <code class="xref py py-obj docutils literal"><span class="pre">OffsetBox.DrawingArea(...,</span> <span class="pre">clip=True)</span></code> but nothing
was done with the <code class="xref py py-obj docutils literal"><span class="pre">clip</span></code> argument. The object did not do any clipping
regardless of that parameter. Now the object can and does clip the child <code class="xref py py-obj docutils literal"><span class="pre">Artists</span></code> if they are set to be clipped.</p>
<p>You can turn off the clipping on a per-child basis using <code class="xref py py-obj docutils literal"><span class="pre">child.set_clip_on(False)</span></code>.</p>
</div>
<div class="section" id="add-salt-to-clippath-id">
<h4>Add salt to clipPath id<a class="headerlink" href="#add-salt-to-clippath-id" title="Permalink to this headline">¶</a></h4>
<p>Add salt to the hash used to determine the id of the <code class="docutils literal"><span class="pre">clipPath</span></code>
nodes. This is to avoid conflicts in two svg documents with the same
clip path are included in the same document (see
<a class="reference external" href="https://github.com/ipython/ipython/issues/8133">https://github.com/ipython/ipython/issues/8133</a> and
<a class="reference external" href="https://github.com/matplotlib/matplotlib/issues/4349">https://github.com/matplotlib/matplotlib/issues/4349</a> ), however this
means that the svg output is no longer deterministic if the same
figure is saved twice. It is not expected that this will affect any
users as the current ids are generated from an md5 hash of properties
of the clip path and any user would have a very difficult time
anticipating the value of the id.</p>
</div>
<div class="section" id="changed-snap-threshold-for-circle-markers-to-inf">
<h4>Changed snap threshold for circle markers to inf<a class="headerlink" href="#changed-snap-threshold-for-circle-markers-to-inf" title="Permalink to this headline">¶</a></h4>
<p>When drawing circle markers above some marker size (previously 6.0)
the path used to generate the marker was snapped to pixel centers. However,
this ends up distorting the marker away from a circle. By setting the
snap threshold to inf snapping is never done on circles.</p>
<p>This change broke several tests, but is an improvement.</p>
</div>
<div class="section" id="preserve-units-with-text-position">
<h4>Preserve units with Text position<a class="headerlink" href="#preserve-units-with-text-position" title="Permalink to this headline">¶</a></h4>
<p>Previously the ‘get_position’ method on Text would strip away unit information
even though the units were still present. There was no inherent need to do
this, so it has been changed so that unit data (if present) will be preserved.
Essentially a call to ‘get_position’ will return the exact value from a call to
‘set_position’.</p>
<p>If you wish to get the old behaviour, then you can use the new method called
‘get_unitless_position’.</p>
</div>
<div class="section" id="new-api-for-custom-axes-view-changes">
<h4>New API for custom Axes view changes<a class="headerlink" href="#new-api-for-custom-axes-view-changes" title="Permalink to this headline">¶</a></h4>
<p>Interactive pan and zoom were previously implemented using a Cartesian-specific
algorithm that was not necessarily applicable to custom Axes. Three new private
methods, <code class="xref py py-meth docutils literal"><span class="pre">_get_view()</span></code>,
<code class="xref py py-meth docutils literal"><span class="pre">_set_view()</span></code>, and
<code class="xref py py-meth docutils literal"><span class="pre">_set_view_from_bbox()</span></code>, allow for custom
<code class="docutils literal"><span class="pre">Axes</span></code> classes to override the pan and zoom algorithms. Implementors of
custom <code class="docutils literal"><span class="pre">Axes</span></code> who override these methods may provide suitable behaviour for
both pan and zoom as well as the view navigation buttons on the interactive
toolbars.</p>
</div>
</div>
<div class="section" id="mathtex-visual-changes">
<h3>MathTex visual changes<a class="headerlink" href="#mathtex-visual-changes" title="Permalink to this headline">¶</a></h3>
<p>The spacing commands in mathtext have been changed to more closely
match vanilla TeX.</p>
<div class="section" id="improved-spacing-in-mathtext">
<h4>Improved spacing in mathtext<a class="headerlink" href="#improved-spacing-in-mathtext" title="Permalink to this headline">¶</a></h4>
<p>The extra space that appeared after subscripts and superscripts has
been removed.</p>
</div>
<div class="section" id="no-annotation-coordinates-wrap">
<h4>No annotation coordinates wrap<a class="headerlink" href="#no-annotation-coordinates-wrap" title="Permalink to this headline">¶</a></h4>
<p>In #2351 for 1.4.0 the behavior of [‘axes points’, ‘axes pixel’,
‘figure points’, ‘figure pixel’] as coordinates was change to
no longer wrap for negative values. In 1.4.3 this change was
reverted for ‘axes points’ and ‘axes pixel’ and in addition caused
‘axes fraction’ to wrap. For 1.5 the behavior has been reverted to
as it was in 1.4.0-1.4.2, no wrapping for any type of coordinate.</p>
</div>
</div>
<div class="section" id="deprecation">
<h3>Deprecation<a class="headerlink" href="#deprecation" title="Permalink to this headline">¶</a></h3>
<div class="section" id="deprecated-graphicscontextbase-set-graylevel">
<h4>Deprecated <code class="xref py py-obj docutils literal"><span class="pre">GraphicsContextBase.set_graylevel</span></code><a class="headerlink" href="#deprecated-graphicscontextbase-set-graylevel" title="Permalink to this headline">¶</a></h4>
<p>The <code class="xref py py-obj docutils literal"><span class="pre">GraphicsContextBase.set_graylevel</span></code> function has been deprecated in 1.5 and
will be removed in 1.6. It has been unused. The
<code class="xref py py-obj docutils literal"><span class="pre">GraphicsContextBase.set_foreground</span></code> could be used instead.</p>
</div>
<div class="section" id="deprecated-idle-event">
<h4>deprecated idle_event<a class="headerlink" href="#deprecated-idle-event" title="Permalink to this headline">¶</a></h4>
<p>The <code class="xref py py-obj docutils literal"><span class="pre">idle_event</span></code> was broken or missing in most backends and causes spurious
warnings in some cases, and its use in creating animations is now obsolete due
to the animations module. Therefore code involving it has been removed from all
but the wx backend (where it partially works), and its use is deprecated. The
animations module may be used instead to create animations.</p>
</div>
<div class="section" id="color-cycle-deprecated">
<h4><code class="xref py py-obj docutils literal"><span class="pre">color_cycle</span></code> deprecated<a class="headerlink" href="#color-cycle-deprecated" title="Permalink to this headline">¶</a></h4>
<p>In light of the new property cycling feature,
the Axes method <em>set_color_cycle</em> is now deprecated.
Calling this method will replace the current property cycle with
one that cycles just the given colors.</p>
<p>Similarly, the rc parameter <em>axes.color_cycle</em> is also deprecated in
lieu of the new <em>axes.prop_cycle</em> parameter. Having both parameters in
the same rc file is not recommended as the result cannot be
predicted. For compatibility, setting <em>axes.color_cycle</em> will
replace the cycler in <em>axes.prop_cycle</em> with a color cycle.
Accessing <em>axes.color_cycle</em> will return just the color portion
of the property cycle, if it exists.</p>
<p>Timeline for removal has not been set.</p>
</div>
</div>
<div class="section" id="bundled-jquery">
<h3>Bundled jquery<a class="headerlink" href="#bundled-jquery" title="Permalink to this headline">¶</a></h3>
<p>The version of jquery bundled with the webagg backend has been upgraded
from 1.7.1 to 1.11.3. If you are using the version of jquery bundled
with webagg you will need to update you html files as such</p>
<div class="highlight-diff"><div class="highlight"><pre><span class="gd">- <script src="_static/jquery/js/jquery-1.7.1.min.js"></script></span>
<span class="gi">+ <script src="_static/jquery/js/jquery-1.11.3.min.js"></script></span>
</pre></div>
</div>
</div>
<div class="section" id="code-removed">
<h3>Code Removed<a class="headerlink" href="#code-removed" title="Permalink to this headline">¶</a></h3>
<div class="section" id="removed-image-from-main-namespace">
<h4>Removed <code class="xref py py-obj docutils literal"><span class="pre">Image</span></code> from main namespace<a class="headerlink" href="#removed-image-from-main-namespace" title="Permalink to this headline">¶</a></h4>
<p><code class="xref py py-obj docutils literal"><span class="pre">Image</span></code> was imported from PIL/pillow to test if PIL is available, but there is no
reason to keep <code class="xref py py-obj docutils literal"><span class="pre">Image</span></code> in the namespace once the availability has been determined.</p>
</div>
<div class="section" id="removed-lod-from-artist">
<h4>Removed <code class="xref py py-obj docutils literal"><span class="pre">lod</span></code> from Artist<a class="headerlink" href="#removed-lod-from-artist" title="Permalink to this headline">¶</a></h4>
<p>Removed the method <em>set_lod</em> and all references to
the attribute <em>_lod</em> as the are not used anywhere else in the
code base. It appears to be a feature stub that was never built
out.</p>
</div>
<div class="section" id="removed-threading-related-classes-from-cbook">
<h4>Removed threading related classes from cbook<a class="headerlink" href="#removed-threading-related-classes-from-cbook" title="Permalink to this headline">¶</a></h4>
<p>The classes <code class="docutils literal"><span class="pre">Scheduler</span></code>, <code class="docutils literal"><span class="pre">Timeout</span></code>, and <code class="docutils literal"><span class="pre">Idle</span></code> were in cbook, but
are not used internally. They appear to be a prototype for the idle event
system which was not working and has recently been pulled out.</p>
</div>
<div class="section" id="removed-lena-images-from-sample-data">
<h4>Removed <code class="xref py py-obj docutils literal"><span class="pre">Lena</span></code> images from sample_data<a class="headerlink" href="#removed-lena-images-from-sample-data" title="Permalink to this headline">¶</a></h4>
<p>The <code class="docutils literal"><span class="pre">lena.png</span></code> and <code class="docutils literal"><span class="pre">lena.jpg</span></code> images have been removed from
matplotlib’s sample_data directory. The images are also no longer
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"><span class="pre">matplotlib.cbook.get_sample_data</span></code></a>. We suggest using
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.cbook.get_sample_data('grace_hopper.png')</span></code> or
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.cbook.get_sample_data('grace_hopper.jpg')</span></code> instead.</p>
</div>
<div class="section" id="legend">
<h4>Legend<a class="headerlink" href="#legend" title="Permalink to this headline">¶</a></h4>
<p>Removed handling of <code class="xref py py-obj docutils literal"><span class="pre">loc</span></code> as a positional argument to <code class="xref py py-obj docutils literal"><span class="pre">Legend</span></code></p>
</div>
<div class="section" id="legend-handlers">
<h4>Legend handlers<a class="headerlink" href="#legend-handlers" title="Permalink to this headline">¶</a></h4>
<p>Remove code to allow legend handlers to be callable. They must now
implement a method <code class="docutils literal"><span class="pre">legend_artist</span></code>.</p>
</div>
<div class="section" id="axis">
<h4>Axis<a class="headerlink" href="#axis" title="Permalink to this headline">¶</a></h4>
<p>Removed method <code class="docutils literal"><span class="pre">set_scale</span></code>. This is now handled via a private method which
should not be used directly by users. It is called via <code class="docutils literal"><span class="pre">Axes.set_{x,y}scale</span></code>
which takes care of ensuring the coupled changes are also made to the Axes object.</p>
</div>
<div class="section" id="finance-py">
<h4>finance.py<a class="headerlink" href="#finance-py" title="Permalink to this headline">¶</a></h4>
<p>Removed functions with ambiguous argument order from finance.py</p>
</div>
<div class="section" id="annotation">
<h4>Annotation<a class="headerlink" href="#annotation" title="Permalink to this headline">¶</a></h4>
<p>Removed <code class="docutils literal"><span class="pre">textcoords</span></code> and <code class="docutils literal"><span class="pre">xytext</span></code> proprieties from Annotation objects.</p>
</div>
<div class="section" id="spinxext-ipython-py">
<h4>spinxext.ipython_*.py<a class="headerlink" href="#spinxext-ipython-py" title="Permalink to this headline">¶</a></h4>
<p>Both <code class="docutils literal"><span class="pre">ipython_console_highlighting</span></code> and <code class="docutils literal"><span class="pre">ipython_directive</span></code> have been moved to
<code class="xref py py-obj docutils literal"><span class="pre">IPython</span></code>.</p>
<p>Change your import from ‘matplotlib.sphinxext.ipython_directive’ to
‘IPython.sphinxext.ipython_directive’ and from ‘matplotlib.sphinxext.ipython_directive’ to
‘IPython.sphinxext.ipython_directive’</p>
</div>
<div class="section" id="linecollection-color">
<h4>LineCollection.color<a class="headerlink" href="#linecollection-color" title="Permalink to this headline">¶</a></h4>
<p>Deprecated in 2005, use <code class="docutils literal"><span class="pre">set_color</span></code></p>
</div>
<div class="section" id="remove-faceted-as-a-valid-value-for-shading-in-tri-tripcolor">
<h4>remove <code class="docutils literal"><span class="pre">'faceted'</span></code> as a valid value for <code class="xref py py-obj docutils literal"><span class="pre">shading</span></code> in <code class="docutils literal"><span class="pre">tri.tripcolor</span></code><a class="headerlink" href="#remove-faceted-as-a-valid-value-for-shading-in-tri-tripcolor" title="Permalink to this headline">¶</a></h4>
<p>Use <code class="xref py py-obj docutils literal"><span class="pre">edgecolor</span></code> instead. Added validation on <code class="docutils literal"><span class="pre">shading</span></code> to
only be valid values.</p>
</div>
<div class="section" id="remove-faceted-kwarg-from-scatter">
<h4>Remove <code class="docutils literal"><span class="pre">faceted</span></code> kwarg from scatter<a class="headerlink" href="#remove-faceted-kwarg-from-scatter" title="Permalink to this headline">¶</a></h4>
<p>Remove support for the <code class="docutils literal"><span class="pre">faceted</span></code> kwarg. This was deprecated in
d48b34288e9651ff95c3b8a071ef5ac5cf50bae7 (2008-04-18!) and replaced by
<code class="docutils literal"><span class="pre">edgecolor</span></code>.</p>
</div>
<div class="section" id="remove-set-colorbar-method-from-scalarmappable">
<h4>Remove <code class="docutils literal"><span class="pre">set_colorbar</span></code> method from <code class="docutils literal"><span class="pre">ScalarMappable</span></code><a class="headerlink" href="#remove-set-colorbar-method-from-scalarmappable" title="Permalink to this headline">¶</a></h4>
<p>Remove <code class="docutils literal"><span class="pre">set_colorbar</span></code> method, use <code class="xref py py-obj docutils literal"><span class="pre">colorbar</span></code> attribute directly.</p>
</div>
<div class="section" id="patheffects-svg">
<h4>patheffects.svg<a class="headerlink" href="#patheffects-svg" title="Permalink to this headline">¶</a></h4>
<blockquote>
<div><ul class="simple">
<li>remove <code class="docutils literal"><span class="pre">get_proxy_renderer</span></code> method from <code class="docutils literal"><span class="pre">AbstarctPathEffect</span></code> class</li>
<li>remove <code class="docutils literal"><span class="pre">patch_alpha</span></code> and <code class="docutils literal"><span class="pre">offset_xy</span></code> from <code class="docutils literal"><span class="pre">SimplePatchShadow</span></code></li>
</ul>
</div></blockquote>
</div>
<div class="section" id="remove-testing-image-util-py">
<h4>Remove <code class="docutils literal"><span class="pre">testing.image_util.py</span></code><a class="headerlink" href="#remove-testing-image-util-py" title="Permalink to this headline">¶</a></h4>
<p>Contained only a no-longer used port of functionality from PIL</p>
</div>
<div class="section" id="remove-mlab-fifobuffer">
<h4>Remove <code class="docutils literal"><span class="pre">mlab.FIFOBuffer</span></code><a class="headerlink" href="#remove-mlab-fifobuffer" title="Permalink to this headline">¶</a></h4>
<p>Not used internally and not part of core mission of mpl.</p>
</div>
<div class="section" id="remove-mlab-prepca">
<h4>Remove <code class="docutils literal"><span class="pre">mlab.prepca</span></code><a class="headerlink" href="#remove-mlab-prepca" title="Permalink to this headline">¶</a></h4>
<p>Deprecated in 2009.</p>
</div>
<div class="section" id="remove-navigationtoolbar2qtagg">
<h4>Remove <code class="docutils literal"><span class="pre">NavigationToolbar2QTAgg</span></code><a class="headerlink" href="#remove-navigationtoolbar2qtagg" title="Permalink to this headline">¶</a></h4>
<p>Added no functionality over the base <code class="docutils literal"><span class="pre">NavigationToolbar2Qt</span></code></p>
</div>
<div class="section" id="mpl-py">
<h4>mpl.py<a class="headerlink" href="#mpl-py" title="Permalink to this headline">¶</a></h4>
<p>Remove the module <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mpl</span></code>. Deprecated in 1.3 by
PR #1670 and commit 78ce67d161625833cacff23cfe5d74920248c5b2</p>
</div>
</div>
</div>
<div class="section" id="changes-in-1-4-x">
<h2>Changes in 1.4.x<a class="headerlink" href="#changes-in-1-4-x" title="Permalink to this headline">¶</a></h2>
<div class="section" id="id1">
<h3>Code changes<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3>
<ul>
<li><p class="first">A major refactoring of the axes module was made. The axes module has been
split into smaller modules:</p>
<blockquote>
<div><ul class="simple">
<li>the <code class="xref py py-obj docutils literal"><span class="pre">_base</span></code> module, which contains a new private _AxesBase class. This
class contains all methods except plotting and labelling methods.</li>
<li>the <code class="xref py py-obj docutils literal"><span class="pre">axes</span></code> module, which contains the Axes class. This class inherits
from _AxesBase, and contains all plotting and labelling methods.</li>
<li>the <code class="xref py py-obj docutils literal"><span class="pre">_subplot</span></code> module, with all the classes concerning subplotting.</li>
</ul>
</div></blockquote>
</li>
</ul>
<p>There are a couple of things that do not exists in the <code class="xref py py-obj docutils literal"><span class="pre">axes</span></code> module’s
namespace anymore. If you use them, you need to import them from their
original location:</p>
<blockquote>
<div><ul class="simple">
<li>math -> <code class="xref py py-obj docutils literal"><span class="pre">import</span> <span class="pre">math</span></code></li>
<li>ma -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">numpy</span> <span class="pre">import</span> <span class="pre">ma</span></code></li>
<li>cbook -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">cbook</span></code></li>
<li>docstring -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">docstring</span></code></li>
<li>is_sequence_of_strings -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib.cbook</span> <span class="pre">import</span> <span class="pre">is_sequence_of_strings</span></code></li>
<li>is_string_like -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib.cbook</span> <span class="pre">import</span> <span class="pre">is_string_like</span></code></li>
<li>iterable -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib.cbook</span> <span class="pre">import</span> <span class="pre">iterable</span></code></li>
<li>itertools -> <code class="xref py py-obj docutils literal"><span class="pre">import</span> <span class="pre">itertools</span></code></li>
<li>martist -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">artist</span> <span class="pre">as</span> <span class="pre">martist</span></code></li>
<li>matplotlib -> <code class="xref py py-obj docutils literal"><span class="pre">import</span> <span class="pre">matplotlib</span></code></li>
<li>mcoll -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">collections</span> <span class="pre">as</span> <span class="pre">mcoll</span></code></li>
<li>mcolors -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">colors</span> <span class="pre">as</span> <span class="pre">mcolors</span></code></li>
<li>mcontour -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">contour</span> <span class="pre">as</span> <span class="pre">mcontour</span></code></li>
<li>mpatches -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">patches</span> <span class="pre">as</span> <span class="pre">mpatches</span></code></li>
<li>mpath -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">path</span> <span class="pre">as</span> <span class="pre">mpath</span></code></li>
<li>mquiver -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">quiver</span> <span class="pre">as</span> <span class="pre">mquiver</span></code></li>
<li>mstack -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">stack</span> <span class="pre">as</span> <span class="pre">mstack</span></code></li>
<li>mstream -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">stream</span> <span class="pre">as</span> <span class="pre">mstream</span></code></li>
<li>mtable -> <code class="xref py py-obj docutils literal"><span class="pre">from</span> <span class="pre">matplotlib</span> <span class="pre">import</span> <span class="pre">table</span> <span class="pre">as</span> <span class="pre">mtable</span></code></li>
</ul>
</div></blockquote>
<ul>
<li><p class="first">As part of the refactoring to enable Qt5 support, the module
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.backends.qt4_compat</span></code> was renamed to
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.qt_compat</span></code>. <code class="xref py py-obj docutils literal"><span class="pre">qt4_compat</span></code> is deprecated in 1.4 and
will be removed in 1.5.</p>
</li>
<li><p class="first">The <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.errorbar" title="matplotlib.pyplot.errorbar"><code class="xref py py-func docutils literal"><span class="pre">errorbar()</span></code></a> method has been changed such that
the upper and lower limits (<em>lolims</em>, <em>uplims</em>, <em>xlolims</em>, <em>xuplims</em>) now
point in the correct direction.</p>
</li>
<li><p class="first">The <em>fmt</em> kwarg for <code class="xref py py-func docutils literal"><span class="pre">plot()</span></code> defaults.</p>
</li>
<li><p class="first">A bug has been fixed in the path effects rendering of fonts, which now means
that the font size is consistent with non-path effect fonts. See
<a class="reference external" href="https://github.com/matplotlib/matplotlib/issues/2889">https://github.com/matplotlib/matplotlib/issues/2889</a> for more detail.</p>
</li>
<li><p class="first">The Sphinx extensions <code class="xref py py-obj docutils literal"><span class="pre">ipython_directive</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">ipython_console_highlighting</span></code> have been moved to the IPython
project itself. While they remain in matplotlib for this release,
they have been deprecated. Update your extensions in <code class="xref py py-obj docutils literal"><span class="pre">conf.py</span></code> to
point to <code class="xref py py-obj docutils literal"><span class="pre">IPython.sphinxext.ipython_directive</span></code> instead of
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.sphinxext.ipython_directive</span></code>.</p>
</li>
<li><p class="first">In <a class="reference internal" href="finance_api.html#module-matplotlib.finance" title="matplotlib.finance"><code class="xref py py-obj docutils literal"><span class="pre">finance</span></code></a>, almost all functions have been deprecated
and replaced with a pair of functions name <code class="xref py py-obj docutils literal"><span class="pre">*_ochl</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">*_ohlc</span></code>.
The former is the ‘open-close-high-low’ order of quotes used
previously in this module, and the latter is the
‘open-high-low-close’ order that is standard in finance.</p>
</li>
<li><p class="first">For consistency the <code class="docutils literal"><span class="pre">face_alpha</span></code> keyword to
<a class="reference internal" href="patheffects_api.html#matplotlib.patheffects.SimplePatchShadow" title="matplotlib.patheffects.SimplePatchShadow"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.patheffects.SimplePatchShadow</span></code></a> has been deprecated in
favour of the <code class="docutils literal"><span class="pre">alpha</span></code> keyword. Similarly, the keyword <code class="docutils literal"><span class="pre">offset_xy</span></code> is now
named <code class="docutils literal"><span class="pre">offset</span></code> across all <code class="xref py py-class docutils literal"><span class="pre">_Base`</span></code> has
been renamed to <a class="reference internal" href="patheffects_api.html#matplotlib.patheffects.AbstractPathEffect" title="matplotlib.patheffects.AbstractPathEffect"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.patheffects.AbstractPathEffect</span></code></a>.
<code class="docutils literal"><span class="pre">matplotlib.patheffect.ProxyRenderer</span></code> has been renamed to
<a class="reference internal" href="patheffects_api.html#matplotlib.patheffects.PathEffectRenderer" title="matplotlib.patheffects.PathEffectRenderer"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.patheffects.PathEffectRenderer</span></code></a> and is now a full
RendererBase subclass.</p>
</li>
<li><p class="first">The artist used to draw the outline of a <code class="xref py py-obj docutils literal"><span class="pre">colorbar</span></code> has been changed
from a <a class="reference internal" href="lines_api.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.lines.Line2D</span></code></a> to <a class="reference internal" href="patches_api.html#matplotlib.patches.Polygon" title="matplotlib.patches.Polygon"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.patches.Polygon</span></code></a>,
thus <code class="xref py py-obj docutils literal"><span class="pre">colorbar.ColorbarBase.outline</span></code> is now a
<a class="reference internal" href="patches_api.html#matplotlib.patches.Polygon" title="matplotlib.patches.Polygon"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.patches.Polygon</span></code></a> object.</p>
</li>
<li><p class="first">The legend handler interface has changed from a callable, to any object
which implements the <code class="docutils literal"><span class="pre">legend_artists</span></code> method (a deprecation phase will
see this interface be maintained for v1.4). See
<a class="reference internal" href="../users/legend_guide.html#plotting-guide-legend"><span>Legend guide</span></a> for further details. Further legend changes
include:</p>
<blockquote>
<div><ul class="simple">
<li><code class="xref py py-func docutils literal"><span class="pre">matplotlib.axes.Axes._get_legend_handles()</span></code> now returns a generator
of handles, rather than a list.</li>
<li>The <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.legend" title="matplotlib.pyplot.legend"><code class="xref py py-func docutils literal"><span class="pre">legend()</span></code></a> function’s “loc” positional
argument has been deprecated. Use the “loc” keyword instead.</li>
</ul>
</div></blockquote>
</li>
<li><p class="first">The rcParams <code class="xref py py-obj docutils literal"><span class="pre">savefig.transparent</span></code> has been added to control
default transparency when saving figures.</p>
</li>
<li><p class="first">Slightly refactored the <code class="xref py py-obj docutils literal"><span class="pre">Annotation</span></code> family. The text location in
<code class="xref py py-obj docutils literal"><span class="pre">Annotation</span></code> is now handled entirely handled by the underlying <code class="xref py py-obj docutils literal"><span class="pre">Text</span></code>
object so <code class="xref py py-obj docutils literal"><span class="pre">set_position</span></code> works as expected. The attributes <code class="xref py py-obj docutils literal"><span class="pre">xytext</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">textcoords</span></code> have been deprecated in favor of <code class="xref py py-obj docutils literal"><span class="pre">xyann</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">anncoords</span></code> so
that <code class="xref py py-obj docutils literal"><span class="pre">Annotation</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">AnnotaionBbox</span></code> can share a common sensibly named
api for getting/setting the location of the text or box.</p>
<blockquote>
<div><ul class="simple">
<li><code class="xref py py-obj docutils literal"><span class="pre">xyann</span></code> -> set the location of the annotation</li>
<li><code class="xref py py-obj docutils literal"><span class="pre">xy</span></code> -> set where the arrow points to</li>
<li><code class="xref py py-obj docutils literal"><span class="pre">anncoords</span></code> -> set the units of the annotation location</li>
<li><code class="xref py py-obj docutils literal"><span class="pre">xycoords</span></code> -> set the units of the point location</li>
<li><code class="xref py py-obj docutils literal"><span class="pre">set_position()</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">Annotation</span></code> only set location of annotation</li>
</ul>
</div></blockquote>
</li>
<li><p class="first"><a class="reference internal" href="mlab_api.html#matplotlib.mlab.specgram" title="matplotlib.mlab.specgram"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.specgram</span></code></a>, <a class="reference internal" href="mlab_api.html#matplotlib.mlab.psd" title="matplotlib.mlab.psd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.psd</span></code></a>, <a class="reference internal" href="mlab_api.html#matplotlib.mlab.csd" title="matplotlib.mlab.csd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.csd</span></code></a>,
<a class="reference internal" href="mlab_api.html#matplotlib.mlab.cohere" title="matplotlib.mlab.cohere"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.cohere</span></code></a>, <a class="reference internal" href="mlab_api.html#matplotlib.mlab.cohere_pairs" title="matplotlib.mlab.cohere_pairs"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.cohere_pairs</span></code></a>,
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.specgram" title="matplotlib.pyplot.specgram"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.specgram</span></code></a>, <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.psd" title="matplotlib.pyplot.psd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.psd</span></code></a>,
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.csd" title="matplotlib.pyplot.csd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.csd</span></code></a>, and <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.cohere" title="matplotlib.pyplot.cohere"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.cohere</span></code></a> now raise
ValueError where they previously raised AssertionError.</p>
</li>
<li><p class="first">For <a class="reference internal" href="mlab_api.html#matplotlib.mlab.psd" title="matplotlib.mlab.psd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.psd</span></code></a>, <a class="reference internal" href="mlab_api.html#matplotlib.mlab.csd" title="matplotlib.mlab.csd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.csd</span></code></a>,
<a class="reference internal" href="mlab_api.html#matplotlib.mlab.cohere" title="matplotlib.mlab.cohere"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.cohere</span></code></a>, <a class="reference internal" href="mlab_api.html#matplotlib.mlab.cohere_pairs" title="matplotlib.mlab.cohere_pairs"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.mlab.cohere_pairs</span></code></a>,
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.specgram" title="matplotlib.pyplot.specgram"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.specgram</span></code></a>, <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.psd" title="matplotlib.pyplot.psd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.psd</span></code></a>,
<a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.csd" title="matplotlib.pyplot.csd"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.csd</span></code></a>, and <a class="reference internal" href="pyplot_api.html#matplotlib.pyplot.cohere" title="matplotlib.pyplot.cohere"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.pyplot.cohere</span></code></a>, in cases
where a shape (n, 1) array is returned, this is now converted to a (n, )
array. Previously, (n, m) arrays were averaged to an (n, ) array, but
(n, 1) arrays were returend unchanged. This change makes the dimensions
consistent in both cases.</p>
</li>
<li><p class="first">Added the rcParam <code class="xref py py-obj docutils literal"><span class="pre">axes.fromatter.useoffset</span></code> to control the default value
of <code class="xref py py-obj docutils literal"><span class="pre">useOffset</span></code> in <code class="xref py py-obj docutils literal"><span class="pre">ticker.ScalarFormatter</span></code></p>
</li>
<li><p class="first">Added <code class="xref py py-obj docutils literal"><span class="pre">Formatter</span></code> sub-class <code class="xref py py-obj docutils literal"><span class="pre">StrMethodFormatter</span></code> which
does the exact same thing as <code class="xref py py-obj docutils literal"><span class="pre">FormatStrFormatter</span></code>, but for new-style
formatting strings.</p>
</li>
<li><p class="first">Deprecated <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.testing.image_util</span></code> and the only function within,
<code class="xref py py-obj docutils literal"><span class="pre">matplotlib.testing.image_util.autocontrast</span></code>. These will be removed
completely in v1.5.0.</p>
</li>
<li><p class="first">The <code class="docutils literal"><span class="pre">fmt</span></code> argument of <a class="reference internal" href="axes_api.html#matplotlib.axes.Axes.plot_date" title="matplotlib.axes.Axes.plot_date"><code class="xref py py-meth docutils literal"><span class="pre">plot_date()</span></code></a> has been
changed from <code class="docutils literal"><span class="pre">bo</span></code> to just <code class="docutils literal"><span class="pre">o</span></code>, so color cycling can happen by default.</p>
</li>
<li><p class="first">Removed the class <code class="xref py py-obj docutils literal"><span class="pre">FigureManagerQTAgg</span></code> and deprecated <code class="xref py py-obj docutils literal"><span class="pre">NavigationToolbar2QTAgg</span></code>
which will be removed in 1.5.</p>
</li>
<li><p class="first">Removed formerly public (non-prefixed) attributes <code class="xref py py-obj docutils literal"><span class="pre">rect</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">drawRect</span></code> from <code class="xref py py-obj docutils literal"><span class="pre">FigureCanvasQTAgg</span></code>; they were always an
implementation detail of the (preserved) <code class="xref py py-obj docutils literal"><span class="pre">drawRectangle()</span></code> function.</p>
</li>
<li><p class="first">The function signatures of <code class="xref py py-obj docutils literal"><span class="pre">tight_bbox.adjust_bbox</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">tight_bbox.process_figure_for_rasterizing</span></code> have been changed. A new
<code class="xref py py-obj docutils literal"><span class="pre">fixed_dpi</span></code> parameter allows for overriding the <code class="xref py py-obj docutils literal"><span class="pre">figure.dpi</span></code> setting
instead of trying to deduce the intended behaviour from the file format.</p>
</li>
<li><p class="first">Added support for horizontal/vertical axes padding to
<code class="xref py py-obj docutils literal"><span class="pre">mpl_toolkits.axes_grid1.ImageGrid</span></code> — argument <code class="docutils literal"><span class="pre">axes_pad</span></code> can now be
tuple-like if separate axis padding is required.
The original behavior is preserved.</p>
</li>
<li><p class="first">Added support for skewed transforms to <a class="reference internal" href="../devel/transformations.html#matplotlib.transforms.Affine2D" title="matplotlib.transforms.Affine2D"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.transforms.Affine2D</span></code></a>,
which can be created using the <code class="xref py py-obj docutils literal"><span class="pre">skew</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">skew_deg</span></code> methods.</p>
</li>
<li><p class="first">Added clockwise parameter to control sectors direction in <code class="xref py py-obj docutils literal"><span class="pre">axes.pie</span></code></p>
</li>
<li><p class="first">In <a class="reference internal" href="lines_api.html#matplotlib.lines.Line2D" title="matplotlib.lines.Line2D"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.lines.Line2D</span></code></a> the <code class="xref py py-obj docutils literal"><span class="pre">markevery</span></code> functionality has been extended.
Previously an integer start-index and stride-length could be specified using
either a two-element-list or a two-element-tuple. Now this can only be done
using a two-element-tuple. If a two-element-list is used then it will be
treated as numpy fancy indexing and only the two markers corresponding to the
given indexes will be shown.</p>
</li>
<li><p class="first">removed prop kwarg from <code class="xref py py-obj docutils literal"><span class="pre">mpl_toolkits.axes_grid1.anchored_artists.AnchoredSizeBar</span></code>
call. It was passed through to the base-class <code class="xref py py-obj docutils literal"><span class="pre">__init__</span></code> and is only used for
setting padding. Now <code class="xref py py-obj docutils literal"><span class="pre">fontproperties</span></code> (which is what is really used to set
the font properties of <code class="xref py py-obj docutils literal"><span class="pre">AnchoredSizeBar</span></code>) is passed through in place of <code class="xref py py-obj docutils literal"><span class="pre">prop</span></code>.
If <code class="xref py py-obj docutils literal"><span class="pre">fontpropreties</span></code> is not passed in, but <code class="xref py py-obj docutils literal"><span class="pre">prop</span></code> is, then <code class="xref py py-obj docutils literal"><span class="pre">prop</span></code> is used inplace
of <code class="xref py py-obj docutils literal"><span class="pre">fontpropreties</span></code>. If both are passed in, <code class="xref py py-obj docutils literal"><span class="pre">prop</span></code> is silently ignored.</p>
</li>
<li><p class="first">The use of the index 0 in <code class="xref py py-obj docutils literal"><span class="pre">plt.subplot</span></code> and related commands is
deprecated. Due to a lack of validation calling <code class="xref py py-obj docutils literal"><span class="pre">plt.subplots(2,</span> <span class="pre">2,</span>
<span class="pre">0)</span></code> does not raise an exception, but puts an axes in the _last_
position. This is due to the indexing in subplot being 1-based (to
mirror MATLAB) so before indexing into the <code class="xref py py-obj docutils literal"><span class="pre">GridSpec</span></code> object used to
determine where the axes should go, 1 is subtracted off. Passing in
0 results in passing -1 to <code class="xref py py-obj docutils literal"><span class="pre">GridSpec</span></code> which results in getting the
last position back. Even though this behavior is clearly wrong and
not intended, we are going through a deprecation cycle in an
abundance of caution that any users are exploiting this ‘feature’.
The use of 0 as an index will raise a warning in 1.4 and an
exception in 1.5.</p>
</li>
<li><p class="first">Clipping is now off by default on offset boxes.</p>
</li>
<li><p class="first">matplotlib now uses a less-aggressive call to <code class="docutils literal"><span class="pre">gc.collect(1)</span></code> when
closing figures to avoid major delays with large numbers of user objects
in memory.</p>
</li>
<li><p class="first">The default clip value of <em>all</em> pie artists now defaults to <code class="docutils literal"><span class="pre">False</span></code>.</p>
</li>
</ul>
</div>
<div class="section" id="code-removal">
<h3>Code removal<a class="headerlink" href="#code-removal" title="Permalink to this headline">¶</a></h3>
<ul class="simple">
<li>Removed <code class="docutils literal"><span class="pre">mlab.levypdf</span></code>. The code raised a numpy error (and has for
a long time) and was not the standard form of the Levy distribution.
<code class="docutils literal"><span class="pre">scipy.stats.levy</span></code> should be used instead</li>
</ul>
</div>
</div>
<div class="section" id="changes-in-1-3-x">
<span id="changes-in-1-3"></span><h2>Changes in 1.3.x<a class="headerlink" href="#changes-in-1-3-x" title="Permalink to this headline">¶</a></h2>
<div class="section" id="changes-in-1-3-1">
<h3>Changes in 1.3.1<a class="headerlink" href="#changes-in-1-3-1" title="Permalink to this headline">¶</a></h3>
<p>It is rare that we make an API change in a bugfix release, however,
for 1.3.1 since 1.3.0 the following change was made:</p>
<ul class="simple">
<li><code class="xref py py-obj docutils literal"><span class="pre">text.Text.cached</span></code> (used to cache font objects) has been made into a
private variable. Among the obvious encapsulation benefit, this
removes this confusing-looking member from the documentation.</li>
<li>The method <a class="reference internal" href="axes_api.html#matplotlib.axes.Axes.hist" title="matplotlib.axes.Axes.hist"><code class="xref py py-meth docutils literal"><span class="pre">hist()</span></code></a> now always returns bin
occupancies as an array of type <code class="xref py py-obj docutils literal"><span class="pre">float</span></code>. Previously, it was sometimes
an array of type <code class="xref py py-obj docutils literal"><span class="pre">int</span></code>, depending on the call.</li>
</ul>
</div>
<div class="section" id="id2">
<h3>Code removal<a class="headerlink" href="#id2" title="Permalink to this headline">¶</a></h3>
<ul>
<li><p class="first">The following items that were deprecated in version 1.2 or earlier
have now been removed completely.</p>
<blockquote>
<div><ul>
<li><p class="first">The Qt 3.x backends (<code class="xref py py-obj docutils literal"><span class="pre">qt</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">qtagg</span></code>) have been removed in
favor of the Qt 4.x backends (<code class="xref py py-obj docutils literal"><span class="pre">qt4</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">qt4agg</span></code>).</p>
</li>
<li><p class="first">The FltkAgg and Emf backends have been removed.</p>
</li>
<li><p class="first">The <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.nxutils</span></code> module has been removed. Use the
functionality on <a class="reference internal" href="path_api.html#matplotlib.path.Path.contains_point" title="matplotlib.path.Path.contains_point"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.path.Path.contains_point</span></code></a> and
friends instead.</p>
</li>
<li><p class="first">Instead of <code class="xref py py-obj docutils literal"><span class="pre">axes.Axes.get_frame</span></code>, use <code class="xref py py-obj docutils literal"><span class="pre">axes.Axes.patch</span></code>.</p>
</li>
<li><p class="first">The following <code class="xref py py-obj docutils literal"><span class="pre">kwargs</span></code> to the <code class="xref py py-obj docutils literal"><span class="pre">legend</span></code> function have been
renamed:</p>
<ul class="simple">
<li><code class="xref py py-obj docutils literal"><span class="pre">pad</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">borderpad</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">labelsep</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">labelspacing</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">handlelen</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">handlelength</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">handletextsep</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">handletextpad</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">axespad</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">borderaxespad</span></code></li>
</ul>
<p>Related to this, the following rcParams have been removed:</p>
<ul class="simple">
<li><code class="xref py py-obj docutils literal"><span class="pre">legend.pad</span></code>, <code class="xref py py-obj docutils literal"><span class="pre">legend.labelsep</span></code>, <code class="xref py py-obj docutils literal"><span class="pre">legend.handlelen</span></code>,
<code class="xref py py-obj docutils literal"><span class="pre">legend.handletextsep</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">legend.axespad</span></code></li>
</ul>
</li>
<li><p class="first">For the <code class="xref py py-obj docutils literal"><span class="pre">hist</span></code> function, instead of <code class="xref py py-obj docutils literal"><span class="pre">width</span></code>, use <code class="xref py py-obj docutils literal"><span class="pre">rwidth</span></code>
(relative width).</p>
</li>
<li><p class="first">On <code class="xref py py-obj docutils literal"><span class="pre">patches.Circle</span></code>, the <code class="xref py py-obj docutils literal"><span class="pre">resolution</span></code> kwarg has been removed.
For a circle made up of line segments, use
<code class="xref py py-obj docutils literal"><span class="pre">patches.CirclePolygon</span></code>.</p>
</li>
<li><p class="first">The printing functions in the Wx backend have been removed due
to the burden of keeping them up-to-date.</p>
</li>
<li><p class="first"><code class="xref py py-obj docutils literal"><span class="pre">mlab.liaupunov</span></code> has been removed.</p>
</li>
<li><p class="first"><code class="xref py py-obj docutils literal"><span class="pre">mlab.save</span></code>, <code class="xref py py-obj docutils literal"><span class="pre">mlab.load</span></code>, <code class="xref py py-obj docutils literal"><span class="pre">pylab.save</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">pylab.load</span></code> have
been removed. We recommend using <code class="xref py py-obj docutils literal"><span class="pre">numpy.savetxt</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">numpy.loadtxt</span></code> instead.</p>
</li>
<li><p class="first"><code class="xref py py-obj docutils literal"><span class="pre">widgets.HorizontalSpanSelector</span></code> has been removed. Use
<code class="xref py py-obj docutils literal"><span class="pre">widgets.SpanSelector</span></code> instead.</p>
</li>
</ul>
</div></blockquote>
</li>
</ul>
</div>
<div class="section" id="code-deprecation">
<h3>Code deprecation<a class="headerlink" href="#code-deprecation" title="Permalink to this headline">¶</a></h3>
<ul>
<li><p class="first">The CocoaAgg backend has been deprecated, with the possibility for
deletion or resurrection in a future release.</p>
</li>
<li><p class="first">The top-level functions in <a class="reference internal" href="path_api.html#module-matplotlib.path" title="matplotlib.path"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.path</span></code></a> that are implemented in
C++ were never meant to be public. Instead, users should use the
Pythonic wrappers for them in the <code class="xref py py-obj docutils literal"><span class="pre">path.Path</span></code> and
<code class="xref py py-obj docutils literal"><span class="pre">collections.Collection</span></code> classes. Use the following mapping to update
your code:</p>
<blockquote>
<div><ul class="simple">
<li><code class="xref py py-obj docutils literal"><span class="pre">point_in_path</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.contains_point</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">get_path_extents</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.get_extents</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">point_in_path_collection</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">collection.Collection.contains</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">path_in_path</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.contains_path</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">path_intersects_path</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.intersects_path</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">convert_path_to_polygons</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.to_polygons</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">cleanup_path</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.cleaned</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">points_in_path</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.contains_points</span></code></li>
<li><code class="xref py py-obj docutils literal"><span class="pre">clip_path_to_rect</span></code> -> <code class="xref py py-obj docutils literal"><span class="pre">path.Path.clip_to_bbox</span></code></li>
</ul>
</div></blockquote>
</li>
<li><p class="first"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.colors.normalize</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">matplotlib.colors.no_norm</span></code> have
been deprecated in favour of <a class="reference internal" href="colors_api.html#matplotlib.colors.Normalize" title="matplotlib.colors.Normalize"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.colors.Normalize</span></code></a> and
<a class="reference internal" href="colors_api.html#matplotlib.colors.NoNorm" title="matplotlib.colors.NoNorm"><code class="xref py py-obj docutils literal"><span class="pre">matplotlib.colors.NoNorm</span></code></a> respectively.</p>
</li>
<li><p class="first">The <code class="xref py py-obj docutils literal"><span class="pre">ScalarMappable</span></code> class’ <code class="xref py py-obj docutils literal"><span class="pre">set_colorbar</span></code> is now
deprecated. Instead, the
<a class="reference internal" href="cm_api.html#matplotlib.cm.ScalarMappable.colorbar" title="matplotlib.cm.ScalarMappable.colorbar"><code class="xref py py-attr docutils literal"><span class="pre">matplotlib.cm.ScalarMappable.colorbar</span></code></a> attribute should be
used. In previous matplotlib versions this attribute was an
undocumented tuple of <code class="docutils literal"><span class="pre">(colorbar_instance,</span> <span class="pre">colorbar_axes)</span></code> but is
now just <code class="docutils literal"><span class="pre">colorbar_instance</span></code>. To get the colorbar axes it is
possible to just use the
<a class="reference internal" href="colorbar_api.html#matplotlib.colorbar.ColorbarBase.ax" title="matplotlib.colorbar.ColorbarBase.ax"><code class="xref py py-attr docutils literal"><span class="pre">ax</span></code></a> attribute on a colorbar
instance.</p>
</li>
<li><p class="first">The <code class="xref py py-obj docutils literal"><span class="pre">mpl</span></code> module is now deprecated. Those who relied on this
module should transition to simply using <code class="docutils literal"><span class="pre">import</span> <span class="pre">matplotlib</span> <span class="pre">as</span> <span class="pre">mpl</span></code>.</p>
</li>
</ul>
</div>
<div class="section" id="id3">
<h3>Code changes<a class="headerlink" href="#id3" title="Permalink to this headline">¶</a></h3>
<ul>
<li><p class="first"><a class="reference internal" href="patches_api.html#matplotlib.patches.Patch" title="matplotlib.patches.Patch"><code class="xref py py-class docutils literal"><span class="pre">Patch</span></code></a> now fully supports using RGBA values for
its <code class="docutils literal"><span class="pre">facecolor</span></code> and <code class="docutils literal"><span class="pre">edgecolor</span></code> attributes, which enables faces and
edges to have different alpha values. If the
<a class="reference internal" href="patches_api.html#matplotlib.patches.Patch" title="matplotlib.patches.Patch"><code class="xref py py-class docutils literal"><span class="pre">Patch</span></code></a> object’s <code class="docutils literal"><span class="pre">alpha</span></code> attribute is set to
anything other than <code class="docutils literal"><span class="pre">None</span></code>, that value will override any alpha-channel
value in both the face and edge colors. Previously, if
<a class="reference internal" href="patches_api.html#matplotlib.patches.Patch" title="matplotlib.patches.Patch"><code class="xref py py-class docutils literal"><span class="pre">Patch</span></code></a> had <code class="docutils literal"><span class="pre">alpha=None</span></code>, the alpha component
of <code class="docutils literal"><span class="pre">edgecolor</span></code> would be applied to both the edge and face.</p>
</li>
<li><p class="first">The optional <code class="docutils literal"><span class="pre">isRGB</span></code> argument to
<a class="reference internal" href="backend_bases_api.html#matplotlib.backend_bases.GraphicsContextBase.set_foreground" title="matplotlib.backend_bases.GraphicsContextBase.set_foreground"><code class="xref py py-meth docutils literal"><span class="pre">set_foreground()</span></code></a> (and
the other GraphicsContext classes that descend from it) has been renamed to
<code class="docutils literal"><span class="pre">isRGBA</span></code>, and should now only be set to <code class="docutils literal"><span class="pre">True</span></code> if the <code class="docutils literal"><span class="pre">fg</span></code> color
argument is known to be an RGBA tuple.</p>
</li>
<li><p class="first">For <a class="reference internal" href="patches_api.html#matplotlib.patches.Patch" title="matplotlib.patches.Patch"><code class="xref py py-class docutils literal"><span class="pre">Patch</span></code></a>, the <code class="docutils literal"><span class="pre">capstyle</span></code> used is now
<code class="docutils literal"><span class="pre">butt</span></code>, to be consistent with the default for most other objects, and to
avoid problems with non-solid <code class="docutils literal"><span class="pre">linestyle</span></code> appearing solid when using a
large <code class="docutils literal"><span class="pre">linewidth</span></code>. Previously, <a class="reference internal" href="patches_api.html#matplotlib.patches.Patch" title="matplotlib.patches.Patch"><code class="xref py py-class docutils literal"><span class="pre">Patch</span></code></a> used
<code class="docutils literal"><span class="pre">capstyle='projecting'</span></code>.</p>
</li>
<li><p class="first"><code class="xref py py-obj docutils literal"><span class="pre">Path</span></code> objects can now be marked as <code class="xref py py-obj docutils literal"><span class="pre">readonly</span></code> by passing
<code class="xref py py-obj docutils literal"><span class="pre">readonly=True</span></code> to its constructor. The built-in path singletons,
obtained through <code class="xref py py-obj docutils literal"><span class="pre">Path.unit*</span></code> class methods return readonly paths.
If you have code that modified these, you will need to make a
deepcopy first, using either:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">copy</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">copy</span><span class="o">.</span><span class="n">deepcopy</span><span class="p">(</span><span class="n">Path</span><span class="o">.</span><span class="n">unit_circle</span><span class="p">())</span>
<span class="c"># or</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">Path</span><span class="o">.</span><span class="n">unit_circle</span><span class="p">()</span><span class="o">.</span><span class="n">deepcopy</span><span class="p">()</span>
</pre></div>
</div>
<p>Deep copying a <code class="xref py py-obj docutils literal"><span class="pre">Path</span></code> always creates an editable (i.e. non-readonly)
<code class="xref py py-obj docutils literal"><span class="pre">Path</span></code>.</p>
</li>
<li><p class="first">The list at <code class="docutils literal"><span class="pre">Path.NUM_VERTICES</span></code> was replaced by a dictionary mapping
Path codes to the number of expected vertices at
<a class="reference internal" href="path_api.html#matplotlib.path.Path.NUM_VERTICES_FOR_CODE" title="matplotlib.path.Path.NUM_VERTICES_FOR_CODE"><code class="xref py py-attr docutils literal"><span class="pre">NUM_VERTICES_FOR_CODE</span></code></a>.</p>
</li>
<li><p class="first">To support XKCD style plots, the <code class="xref py py-func docutils literal"><span class="pre">matplotlib.path.cleanup_path()</span></code>
method’s signature was updated to require a sketch argument. Users of
<code class="xref py py-func docutils literal"><span class="pre">matplotlib.path.cleanup_path()</span></code> are encouraged to use the new
<a class="reference internal" href="path_api.html#matplotlib.path.Path.cleaned" title="matplotlib.path.Path.cleaned"><code class="xref py py-meth docutils literal"><span class="pre">cleaned()</span></code></a> Path method.</p>
</li>
<li><p class="first">Data limits on a plot now start from a state of having “null”
limits, rather than limits in the range (0, 1). This has an effect
on artists that only control limits in one direction, such as
<code class="xref py py-obj docutils literal"><span class="pre">axvline</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">axhline</span></code>, since their limits will not longer also
include the range (0, 1). This fixes some problems where the
computed limits would be dependent on the order in which artists