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<li><a class="reference internal" href="#">legend and legend_handler</a><ul>
<li><a class="reference internal" href="#module-matplotlib.legend"><code class="docutils literal"><span class="pre">matplotlib.legend</span></code></a></li>
<li><a class="reference internal" href="#module-matplotlib.legend_handler"><code class="docutils literal"><span class="pre">matplotlib.legend_handler</span></code></a></li>
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<div class="section" id="legend-and-legend-handler">
<h1>legend and legend_handler<a class="headerlink" href="#legend-and-legend-handler" title="Permalink to this headline">¶</a></h1>
<div class="section" id="module-matplotlib.legend">
<span id="matplotlib-legend"></span><h2><a class="reference internal" href="#module-matplotlib.legend" title="matplotlib.legend"><code class="xref py py-mod docutils literal"><span class="pre">matplotlib.legend</span></code></a><a class="headerlink" href="#module-matplotlib.legend" title="Permalink to this headline">¶</a></h2>
<p>The legend module defines the Legend class, which is responsible for
drawing legends associated with axes and/or figures.</p>
<div class="admonition important">
<p class="first admonition-title">Important</p>
<p class="last">It is unlikely that you would ever create a Legend instance manually.
Most users would normally create a legend via the
<a class="reference internal" href="_as_gen/matplotlib.axes.Axes.legend.html#matplotlib.axes.Axes.legend" title="matplotlib.axes.Axes.legend"><code class="xref py py-meth docutils literal"><span class="pre">legend()</span></code></a> function. For more details on legends
there is also a <a class="reference internal" href="../tutorials/02_intermediate/legend_guide.html#sphx-glr-tutorials-02-intermediate-legend-guide-py"><span class="std std-ref">legend guide</span></a>.</p>
</div>
<p>The Legend class can be considered as a container of legend handles
and legend texts. Creation of corresponding legend handles from the
plot elements in the axes or figures (e.g., lines, patches, etc.) are
specified by the handler map, which defines the mapping between the
plot elements and the legend handlers to be used (the default legend
handlers are defined in the <a class="reference internal" href="#module-matplotlib.legend_handler" title="matplotlib.legend_handler"><code class="xref py py-mod docutils literal"><span class="pre">legend_handler</span></code></a> module).
Note that not all kinds of artist are supported by the legend yet by default
but it is possible to extend the legend handler’s capabilities to support
arbitrary objects. See the <a class="reference internal" href="../tutorials/02_intermediate/legend_guide.html#sphx-glr-tutorials-02-intermediate-legend-guide-py"><span class="std std-ref">legend guide</span></a> for more information.</p>
<dl class="class">
<dt id="matplotlib.legend.DraggableLegend">
<em class="property">class </em><code class="descclassname">matplotlib.legend.</code><code class="descname">DraggableLegend</code><span class="sig-paren">(</span><em>legend</em>, <em>use_blit=False</em>, <em>update=’loc’</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.DraggableLegend" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="offsetbox_api.html#matplotlib.offsetbox.DraggableOffsetBox" title="matplotlib.offsetbox.DraggableOffsetBox"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.offsetbox.DraggableOffsetBox</span></code></a></p>
<dl class="docutils">
<dt>update <span class="classifier-delimiter">:</span> <span class="classifier">If “loc”, update <em>loc</em> parameter of</span></dt>
<dd>legend upon finalizing. If “bbox”, update
<em>bbox_to_anchor</em> parameter.</dd>
</dl>
<dl class="method">
<dt id="matplotlib.legend.DraggableLegend.artist_picker">
<code class="descname">artist_picker</code><span class="sig-paren">(</span><em>legend</em>, <em>evt</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.DraggableLegend.artist_picker" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend.DraggableLegend.finalize_offset">
<code class="descname">finalize_offset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.DraggableLegend.finalize_offset" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend.Legend">
<em class="property">class </em><code class="descclassname">matplotlib.legend.</code><code class="descname">Legend</code><span class="sig-paren">(</span><em>parent</em>, <em>handles</em>, <em>labels</em>, <em>loc=None</em>, <em>numpoints=None</em>, <em>markerscale=None</em>, <em>markerfirst=True</em>, <em>scatterpoints=None</em>, <em>scatteryoffsets=None</em>, <em>prop=None</em>, <em>fontsize=None</em>, <em>borderpad=None</em>, <em>labelspacing=None</em>, <em>handlelength=None</em>, <em>handleheight=None</em>, <em>handletextpad=None</em>, <em>borderaxespad=None</em>, <em>columnspacing=None</em>, <em>ncol=1</em>, <em>mode=None</em>, <em>fancybox=None</em>, <em>shadow=None</em>, <em>title=None</em>, <em>framealpha=None</em>, <em>edgecolor=None</em>, <em>facecolor=None</em>, <em>bbox_to_anchor=None</em>, <em>bbox_transform=None</em>, <em>frameon=None</em>, <em>handler_map=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="artist_api.html#matplotlib.artist.Artist" title="matplotlib.artist.Artist"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.artist.Artist</span></code></a></p>
<p>Place a legend on the axes at location loc. Labels are a
sequence of strings and loc can be a string or an integer
specifying the legend location</p>
<p>The location codes are:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="s1">'best'</span> <span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="p">(</span><span class="n">only</span> <span class="n">implemented</span> <span class="k">for</span> <span class="n">axes</span> <span class="n">legends</span><span class="p">)</span>
<span class="s1">'upper right'</span> <span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="s1">'upper left'</span> <span class="p">:</span> <span class="mi">2</span><span class="p">,</span>
<span class="s1">'lower left'</span> <span class="p">:</span> <span class="mi">3</span><span class="p">,</span>
<span class="s1">'lower right'</span> <span class="p">:</span> <span class="mi">4</span><span class="p">,</span>
<span class="s1">'right'</span> <span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="p">(</span><span class="n">same</span> <span class="k">as</span> <span class="s1">'center right'</span><span class="p">,</span> <span class="k">for</span> <span class="n">back</span><span class="o">-</span><span class="n">compatibility</span><span class="p">)</span>
<span class="s1">'center left'</span> <span class="p">:</span> <span class="mi">6</span><span class="p">,</span>
<span class="s1">'center right'</span> <span class="p">:</span> <span class="mi">7</span><span class="p">,</span>
<span class="s1">'lower center'</span> <span class="p">:</span> <span class="mi">8</span><span class="p">,</span>
<span class="s1">'upper center'</span> <span class="p">:</span> <span class="mi">9</span><span class="p">,</span>
<span class="s1">'center'</span> <span class="p">:</span> <span class="mi">10</span><span class="p">,</span>
</pre></div>
</div>
<p>loc can be a tuple of the normalized coordinate values with
respect its parent.</p>
<ul>
<li><p class="first"><em>parent</em>: the artist that contains the legend</p>
</li>
<li><dl class="first docutils">
<dt><em>handles</em>: a list of artists (lines, patches) to be added to the</dt>
<dd><p class="first last">legend</p>
</dd>
</dl>
</li>
<li><p class="first"><em>labels</em>: a list of strings to label the legend</p>
</li>
</ul>
<p>Optional keyword arguments:</p>
<table border="1" class="docutils">
<colgroup>
<col width="24%" />
<col width="76%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Keyword</th>
<th class="head">Description</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td>loc</td>
<td>Location code string, or tuple (see below).</td>
</tr>
<tr class="row-odd"><td>prop</td>
<td>the font property</td>
</tr>
<tr class="row-even"><td>fontsize</td>
<td>the font size (used only if prop is not specified)</td>
</tr>
<tr class="row-odd"><td>markerscale</td>
<td>the relative size of legend markers vs. original</td>
</tr>
<tr class="row-even"><td>markerfirst</td>
<td>If True (default), marker is to left of the label.</td>
</tr>
<tr class="row-odd"><td>numpoints</td>
<td>the number of points in the legend for line</td>
</tr>
<tr class="row-even"><td>scatterpoints</td>
<td>the number of points in the legend for scatter plot</td>
</tr>
<tr class="row-odd"><td>scatteryoffsets</td>
<td>a list of yoffsets for scatter symbols in legend</td>
</tr>
<tr class="row-even"><td>frameon</td>
<td>If True, draw the legend on a patch (frame).</td>
</tr>
<tr class="row-odd"><td>fancybox</td>
<td>If True, draw the frame with a round fancybox.</td>
</tr>
<tr class="row-even"><td>shadow</td>
<td>If True, draw a shadow behind legend.</td>
</tr>
<tr class="row-odd"><td>framealpha</td>
<td>Transparency of the frame.</td>
</tr>
<tr class="row-even"><td>edgecolor</td>
<td>Frame edgecolor.</td>
</tr>
<tr class="row-odd"><td>facecolor</td>
<td>Frame facecolor.</td>
</tr>
<tr class="row-even"><td>ncol</td>
<td>number of columns</td>
</tr>
<tr class="row-odd"><td>borderpad</td>
<td>the fractional whitespace inside the legend border</td>
</tr>
<tr class="row-even"><td>labelspacing</td>
<td>the vertical space between the legend entries</td>
</tr>
<tr class="row-odd"><td>handlelength</td>
<td>the length of the legend handles</td>
</tr>
<tr class="row-even"><td>handleheight</td>
<td>the height of the legend handles</td>
</tr>
<tr class="row-odd"><td>handletextpad</td>
<td>the pad between the legend handle and text</td>
</tr>
<tr class="row-even"><td>borderaxespad</td>
<td>the pad between the axes and legend border</td>
</tr>
<tr class="row-odd"><td>columnspacing</td>
<td>the spacing between columns</td>
</tr>
<tr class="row-even"><td>title</td>
<td>the legend title</td>
</tr>
<tr class="row-odd"><td>bbox_to_anchor</td>
<td>the bbox that the legend will be anchored.</td>
</tr>
<tr class="row-even"><td>bbox_transform</td>
<td>the transform for the bbox. transAxes if None.</td>
</tr>
</tbody>
</table>
<p>The pad and spacing parameters are measured in font-size units. e.g.,
a fontsize of 10 points and a handlelength=5 implies a handlelength of
50 points. Values from rcParams will be used if None.</p>
<p>Users can specify any arbitrary location for the legend using the
<em>bbox_to_anchor</em> keyword argument. bbox_to_anchor can be an instance
of BboxBase(or its derivatives) or a tuple of 2 or 4 floats.
See <a class="reference internal" href="#matplotlib.legend.Legend.set_bbox_to_anchor" title="matplotlib.legend.Legend.set_bbox_to_anchor"><code class="xref py py-meth docutils literal"><span class="pre">set_bbox_to_anchor()</span></code></a> for more detail.</p>
<p>The legend location can be specified by setting <em>loc</em> with a tuple of
2 floats, which is interpreted as the lower-left corner of the legend
in the normalized axes coordinate.</p>
<dl class="attribute">
<dt id="matplotlib.legend.Legend.codes">
<code class="descname">codes</code><em class="property"> = {‘upper center’: 9, ‘best’: 0, ‘center left’: 6, ‘center right’: 7, ‘center’: 10, ‘upper left’: 2, ‘right’: 5, ‘lower right’: 4, ‘lower left’: 3, ‘lower center’: 8, ‘upper right’: 1}</em><a class="headerlink" href="#matplotlib.legend.Legend.codes" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.contains">
<code class="descname">contains</code><span class="sig-paren">(</span><em>event</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.contains" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.draggable">
<code class="descname">draggable</code><span class="sig-paren">(</span><em>state=None</em>, <em>use_blit=False</em>, <em>update=’loc’</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.draggable" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the draggable state – if state is</p>
<blockquote>
<div><ul class="simple">
<li>None : toggle the current state</li>
<li>True : turn draggable on</li>
<li>False : turn draggable off</li>
</ul>
</div></blockquote>
<p>If draggable is on, you can drag the legend on the canvas with
the mouse. The DraggableLegend helper instance is returned if
draggable is on.</p>
<p>The update parameter control which parameter of the legend changes
when dragged. If update is “loc”, the <em>loc</em> paramter of the legend
is changed. If “bbox”, the <em>bbox_to_anchor</em> parameter is changed.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.draw">
<code class="descname">draw</code><span class="sig-paren">(</span><em>renderer</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.draw" title="Permalink to this definition">¶</a></dt>
<dd><p>Draw everything that belongs to the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.draw_frame">
<code class="descname">draw_frame</code><span class="sig-paren">(</span><em>b</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.draw_frame" title="Permalink to this definition">¶</a></dt>
<dd><p>b is a boolean. Set draw frame to b</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_bbox_to_anchor">
<code class="descname">get_bbox_to_anchor</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_bbox_to_anchor" title="Permalink to this definition">¶</a></dt>
<dd><p>return the bbox that the legend will be anchored</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_children">
<code class="descname">get_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_children" title="Permalink to this definition">¶</a></dt>
<dd><p>return a list of child artists</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.legend.Legend.get_default_handler_map">
<em class="property">classmethod </em><code class="descname">get_default_handler_map</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_default_handler_map" title="Permalink to this definition">¶</a></dt>
<dd><p>A class method that returns the default handler map.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_frame">
<code class="descname">get_frame</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_frame" title="Permalink to this definition">¶</a></dt>
<dd><p>return the Rectangle instance used to frame the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_frame_on">
<code class="descname">get_frame_on</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_frame_on" title="Permalink to this definition">¶</a></dt>
<dd><p>Get whether the legend box patch is drawn</p>
</dd></dl>
<dl class="staticmethod">
<dt id="matplotlib.legend.Legend.get_legend_handler">
<em class="property">static </em><code class="descname">get_legend_handler</code><span class="sig-paren">(</span><em>legend_handler_map</em>, <em>orig_handle</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_legend_handler" title="Permalink to this definition">¶</a></dt>
<dd><p>return a legend handler from <em>legend_handler_map</em> that
corresponds to <em>orig_handler</em>.</p>
<p><em>legend_handler_map</em> should be a dictionary object (that is
returned by the get_legend_handler_map method).</p>
<p>It first checks if the <em>orig_handle</em> itself is a key in the
<em>legend_hanler_map</em> and return the associated value.
Otherwise, it checks for each of the classes in its
method-resolution-order. If no matching key is found, it
returns None.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_legend_handler_map">
<code class="descname">get_legend_handler_map</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_legend_handler_map" title="Permalink to this definition">¶</a></dt>
<dd><p>return the handler map.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_lines">
<code class="descname">get_lines</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_lines" title="Permalink to this definition">¶</a></dt>
<dd><p>return a list of lines.Line2D instances in the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_patches">
<code class="descname">get_patches</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_patches" title="Permalink to this definition">¶</a></dt>
<dd><p>return a list of patch instances in the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_texts">
<code class="descname">get_texts</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_texts" title="Permalink to this definition">¶</a></dt>
<dd><p>return a list of text.Text instance in the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_title">
<code class="descname">get_title</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_title" title="Permalink to this definition">¶</a></dt>
<dd><p>return Text instance for the legend title</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.get_window_extent">
<code class="descname">get_window_extent</code><span class="sig-paren">(</span><em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.get_window_extent" title="Permalink to this definition">¶</a></dt>
<dd><p>return a extent of the legend</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.set_bbox_to_anchor">
<code class="descname">set_bbox_to_anchor</code><span class="sig-paren">(</span><em>bbox</em>, <em>transform=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.set_bbox_to_anchor" title="Permalink to this definition">¶</a></dt>
<dd><p>set the bbox that the legend will be anchored.</p>
<p><em>bbox</em> can be a BboxBase instance, a tuple of [left, bottom,
width, height] in the given transform (normalized axes
coordinate if None), or a tuple of [left, bottom] where the
width and height will be assumed to be zero.</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.legend.Legend.set_default_handler_map">
<em class="property">classmethod </em><code class="descname">set_default_handler_map</code><span class="sig-paren">(</span><em>handler_map</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.set_default_handler_map" title="Permalink to this definition">¶</a></dt>
<dd><p>A class method to set the default handler map.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.set_frame_on">
<code class="descname">set_frame_on</code><span class="sig-paren">(</span><em>b</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.set_frame_on" title="Permalink to this definition">¶</a></dt>
<dd><p>Set whether the legend box patch is drawn</p>
<p>ACCEPTS: [ <em>True</em> | <em>False</em> ]</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend.Legend.set_title">
<code class="descname">set_title</code><span class="sig-paren">(</span><em>title</em>, <em>prop=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.set_title" title="Permalink to this definition">¶</a></dt>
<dd><p>set the legend title. Fontproperties can be optionally set
with <em>prop</em> parameter.</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.legend.Legend.update_default_handler_map">
<em class="property">classmethod </em><code class="descname">update_default_handler_map</code><span class="sig-paren">(</span><em>handler_map</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend.Legend.update_default_handler_map" title="Permalink to this definition">¶</a></dt>
<dd><p>A class method to update the default handler map.</p>
</dd></dl>
<dl class="attribute">
<dt id="matplotlib.legend.Legend.zorder">
<code class="descname">zorder</code><em class="property"> = 5</em><a class="headerlink" href="#matplotlib.legend.Legend.zorder" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
</div>
<div class="section" id="module-matplotlib.legend_handler">
<span id="matplotlib-legend-handler"></span><h2><a class="reference internal" href="#module-matplotlib.legend_handler" title="matplotlib.legend_handler"><code class="xref py py-mod docutils literal"><span class="pre">matplotlib.legend_handler</span></code></a><a class="headerlink" href="#module-matplotlib.legend_handler" title="Permalink to this headline">¶</a></h2>
<p>This module defines default legend handlers.</p>
<p>It is strongly encouraged to have read the <a class="reference internal" href="../tutorials/02_intermediate/legend_guide.html#sphx-glr-tutorials-02-intermediate-legend-guide-py"><span class="std std-ref">legend guide</span></a> before this documentation.</p>
<p>Legend handlers are expected to be a callable object with a following
signature.</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">legend_handler</span><span class="p">(</span><span class="n">legend</span><span class="p">,</span> <span class="n">orig_handle</span><span class="p">,</span> <span class="n">fontsize</span><span class="p">,</span> <span class="n">handlebox</span><span class="p">)</span>
</pre></div>
</div>
<p>Where <em>legend</em> is the legend itself, <em>orig_handle</em> is the original
plot, <em>fontsize</em> is the fontsize in pixles, and <em>handlebox</em> is a
OffsetBox instance. Within the call, you should create relevant
artists (using relevant properties from the <em>legend</em> and/or
<em>orig_handle</em>) and add them into the handlebox. The artists needs to
be scaled according to the fontsize (note that the size is in pixel,
i.e., this is dpi-scaled value).</p>
<p>This module includes definition of several legend handler classes
derived from the base class (HandlerBase) with the following method.</p>
<blockquote>
<div>def legend_artist(self, legend, orig_handle, fontsize, handlebox):</div></blockquote>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerBase">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerBase</code><span class="sig-paren">(</span><em>xpad=0.0</em>, <em>ypad=0.0</em>, <em>update_func=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerBase" title="Permalink to this definition">¶</a></dt>
<dd><p>A Base class for default legend handlers.</p>
<p>The derived classes are meant to override <em>create_artists</em> method, which
has a following signature.:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">create_artists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">legend</span><span class="p">,</span> <span class="n">orig_handle</span><span class="p">,</span>
<span class="n">xdescent</span><span class="p">,</span> <span class="n">ydescent</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="n">fontsize</span><span class="p">,</span>
<span class="n">trans</span><span class="p">):</span>
</pre></div>
</div>
<p>The overridden method needs to create artists of the given
transform that fits in the given dimension (xdescent, ydescent,
width, height) that are scaled by fontsize if necessary.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerBase.adjust_drawing_area">
<code class="descname">adjust_drawing_area</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerBase.adjust_drawing_area" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerBase.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerBase.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerBase.legend_artist">
<code class="descname">legend_artist</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>fontsize</em>, <em>handlebox</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerBase.legend_artist" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the artist that this HandlerBase generates for the given
original artist/handle.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>legend</strong> : <a class="reference internal" href="#matplotlib.legend.Legend" title="matplotlib.legend.Legend"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.legend.Legend</span></code></a> instance</p>
<blockquote>
<div><p>The legend for which these legend artists are being created.</p>
</div></blockquote>
<p><strong>orig_handle</strong> : <a class="reference internal" href="artist_api.html#matplotlib.artist.Artist" title="matplotlib.artist.Artist"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.artist.Artist</span></code></a> or similar</p>
<blockquote>
<div><p>The object for which these legend artists are being created.</p>
</div></blockquote>
<p><strong>fontsize</strong> : float or int</p>
<blockquote>
<div><p>The fontsize in pixels. The artists being created should
be scaled according to the given fontsize.</p>
</div></blockquote>
<p><strong>handlebox</strong> : <a class="reference internal" href="offsetbox_api.html#matplotlib.offsetbox.OffsetBox" title="matplotlib.offsetbox.OffsetBox"><code class="xref py py-class docutils literal"><span class="pre">matplotlib.offsetbox.OffsetBox</span></code></a> instance</p>
<blockquote class="last">
<div><p>The box which has been created to hold this legend entry’s
artists. Artists created in the <a class="reference internal" href="#matplotlib.legend_handler.HandlerBase.legend_artist" title="matplotlib.legend_handler.HandlerBase.legend_artist"><code class="xref py py-obj docutils literal"><span class="pre">legend_artist</span></code></a> method must
be added to this handlebox inside this method.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerBase.update_prop">
<code class="descname">update_prop</code><span class="sig-paren">(</span><em>legend_handle</em>, <em>orig_handle</em>, <em>legend</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerBase.update_prop" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerCircleCollection">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerCircleCollection</code><span class="sig-paren">(</span><em>yoffsets=None</em>, <em>sizes=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerCircleCollection" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for CircleCollections</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerCircleCollection.create_collection">
<code class="descname">create_collection</code><span class="sig-paren">(</span><em>orig_handle</em>, <em>sizes</em>, <em>offsets</em>, <em>transOffset</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerCircleCollection.create_collection" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerErrorbar">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerErrorbar</code><span class="sig-paren">(</span><em>xerr_size=0.5</em>, <em>yerr_size=None</em>, <em>marker_pad=0.3</em>, <em>numpoints=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerErrorbar" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for Errorbars</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerErrorbar.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerErrorbar.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerErrorbar.get_err_size">
<code class="descname">get_err_size</code><span class="sig-paren">(</span><em>legend</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerErrorbar.get_err_size" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerLine2D">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerLine2D</code><span class="sig-paren">(</span><em>marker_pad=0.3</em>, <em>numpoints=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerLine2D" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for Line2D instances.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerLine2D.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerLine2D.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerLineCollection">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerLineCollection</code><span class="sig-paren">(</span><em>marker_pad=0.3</em>, <em>numpoints=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerLineCollection" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for LineCollection instances.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerLineCollection.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerLineCollection.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerLineCollection.get_numpoints">
<code class="descname">get_numpoints</code><span class="sig-paren">(</span><em>legend</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerLineCollection.get_numpoints" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerNpoints">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerNpoints</code><span class="sig-paren">(</span><em>marker_pad=0.3</em>, <em>numpoints=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerNpoints" title="Permalink to this definition">¶</a></dt>
<dd><dl class="method">
<dt id="matplotlib.legend_handler.HandlerNpoints.get_numpoints">
<code class="descname">get_numpoints</code><span class="sig-paren">(</span><em>legend</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerNpoints.get_numpoints" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerNpoints.get_xdata">
<code class="descname">get_xdata</code><span class="sig-paren">(</span><em>legend</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerNpoints.get_xdata" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerNpointsYoffsets">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerNpointsYoffsets</code><span class="sig-paren">(</span><em>numpoints=None</em>, <em>yoffsets=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerNpointsYoffsets" title="Permalink to this definition">¶</a></dt>
<dd><dl class="method">
<dt id="matplotlib.legend_handler.HandlerNpointsYoffsets.get_ydata">
<code class="descname">get_ydata</code><span class="sig-paren">(</span><em>legend</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerNpointsYoffsets.get_ydata" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerPatch">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerPatch</code><span class="sig-paren">(</span><em>patch_func=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPatch" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for Patch instances.</p>
<p>The HandlerPatch class optionally takes a function <code class="docutils literal"><span class="pre">patch_func</span></code>
who’s responsibility is to create the legend key artist. The
<code class="docutils literal"><span class="pre">patch_func</span></code> should have the signature:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">patch_func</span><span class="p">(</span><span class="n">legend</span><span class="o">=</span><span class="n">legend</span><span class="p">,</span> <span class="n">orig_handle</span><span class="o">=</span><span class="n">orig_handle</span><span class="p">,</span>
<span class="n">xdescent</span><span class="o">=</span><span class="n">xdescent</span><span class="p">,</span> <span class="n">ydescent</span><span class="o">=</span><span class="n">ydescent</span><span class="p">,</span>
<span class="n">width</span><span class="o">=</span><span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="o">=</span><span class="n">height</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="n">fontsize</span><span class="p">)</span>
</pre></div>
</div>
<p>Subsequently the created artist will have its <code class="docutils literal"><span class="pre">update_prop</span></code> method
called and the appropriate transform will be applied.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerPatch.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPatch.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerPathCollection">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerPathCollection</code><span class="sig-paren">(</span><em>yoffsets=None</em>, <em>sizes=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPathCollection" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for PathCollections, which are used by scatter</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerPathCollection.create_collection">
<code class="descname">create_collection</code><span class="sig-paren">(</span><em>orig_handle</em>, <em>sizes</em>, <em>offsets</em>, <em>transOffset</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPathCollection.create_collection" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerPolyCollection">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerPolyCollection</code><span class="sig-paren">(</span><em>xpad=0.0</em>, <em>ypad=0.0</em>, <em>update_func=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPolyCollection" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for PolyCollection used in fill_between and stackplot.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerPolyCollection.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerPolyCollection.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerRegularPolyCollection</code><span class="sig-paren">(</span><em>yoffsets=None</em>, <em>sizes=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for RegularPolyCollections.</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection.create_collection">
<code class="descname">create_collection</code><span class="sig-paren">(</span><em>orig_handle</em>, <em>sizes</em>, <em>offsets</em>, <em>transOffset</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection.create_collection" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection.get_numpoints">
<code class="descname">get_numpoints</code><span class="sig-paren">(</span><em>legend</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection.get_numpoints" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection.get_sizes">
<code class="descname">get_sizes</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection.get_sizes" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerRegularPolyCollection.update_prop">
<code class="descname">update_prop</code><span class="sig-paren">(</span><em>legend_handle</em>, <em>orig_handle</em>, <em>legend</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerRegularPolyCollection.update_prop" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerStem">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerStem</code><span class="sig-paren">(</span><em>marker_pad=0.3</em>, <em>numpoints=None</em>, <em>bottom=None</em>, <em>yoffsets=None</em>, <em>**kw</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerStem" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for Errorbars</p>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerStem.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerStem.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerStem.get_ydata">
<code class="descname">get_ydata</code><span class="sig-paren">(</span><em>legend</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerStem.get_ydata" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.legend_handler.HandlerTuple">
<em class="property">class </em><code class="descclassname">matplotlib.legend_handler.</code><code class="descname">HandlerTuple</code><span class="sig-paren">(</span><em>ndivide=1</em>, <em>pad=None</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerTuple" title="Permalink to this definition">¶</a></dt>
<dd><p>Handler for Tuple.</p>
<p>Additional kwargs are passed through to <a class="reference internal" href="#matplotlib.legend_handler.HandlerBase" title="matplotlib.legend_handler.HandlerBase"><code class="xref py py-obj docutils literal"><span class="pre">HandlerBase</span></code></a>.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>ndivide</strong> : int, optional</p>
<blockquote>
<div><p>The number of sections to divide the legend area into. If None,
use the length of the input tuple. Default is 1.</p>
</div></blockquote>
<p><strong>pad</strong> : float, optional</p>
<blockquote class="last">
<div><p>If None, fall back to <code class="xref py py-obj docutils literal"><span class="pre">legend.borderpad</span></code> as the default.
In units of fraction of font size. Default is None.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="matplotlib.legend_handler.HandlerTuple.create_artists">
<code class="descname">create_artists</code><span class="sig-paren">(</span><em>legend</em>, <em>orig_handle</em>, <em>xdescent</em>, <em>ydescent</em>, <em>width</em>, <em>height</em>, <em>fontsize</em>, <em>trans</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.HandlerTuple.create_artists" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</dd></dl>
<dl class="function">
<dt id="matplotlib.legend_handler.update_from_first_child">
<code class="descclassname">matplotlib.legend_handler.</code><code class="descname">update_from_first_child</code><span class="sig-paren">(</span><em>tgt</em>, <em>src</em><span class="sig-paren">)</span><a class="headerlink" href="#matplotlib.legend_handler.update_from_first_child" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</div>
</div>
</div>
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