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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<html xmlns="http://www.w3.org/1999/xhtml">
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<title>matplotlib.spines — Matplotlib 2.2.2 documentation</title>
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<h1>Source code for matplotlib.spines</h1><div class="highlight"><pre>
<span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="p">(</span><span class="n">absolute_import</span><span class="p">,</span> <span class="n">division</span><span class="p">,</span> <span class="n">print_function</span><span class="p">,</span>
<span class="n">unicode_literals</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">six</span>
<span class="kn">import</span> <span class="nn">matplotlib</span>
<span class="kn">from</span> <span class="nn">matplotlib.artist</span> <span class="k">import</span> <span class="n">allow_rasterization</span>
<span class="kn">from</span> <span class="nn">matplotlib</span> <span class="k">import</span> <span class="n">docstring</span>
<span class="kn">import</span> <span class="nn">matplotlib.transforms</span> <span class="k">as</span> <span class="nn">mtransforms</span>
<span class="kn">import</span> <span class="nn">matplotlib.patches</span> <span class="k">as</span> <span class="nn">mpatches</span>
<span class="kn">import</span> <span class="nn">matplotlib.path</span> <span class="k">as</span> <span class="nn">mpath</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
<span class="kn">import</span> <span class="nn">warnings</span>
<span class="n">rcParams</span> <span class="o">=</span> <span class="n">matplotlib</span><span class="o">.</span><span class="n">rcParams</span>
<div class="viewcode-block" id="Spine"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine">[docs]</a><span class="k">class</span> <span class="nc">Spine</span><span class="p">(</span><span class="n">mpatches</span><span class="o">.</span><span class="n">Patch</span><span class="p">):</span>
<span class="sd">"""an axis spine -- the line noting the data area boundaries</span>
<span class="sd"> Spines are the lines connecting the axis tick marks and noting the</span>
<span class="sd"> boundaries of the data area. They can be placed at arbitrary</span>
<span class="sd"> positions. See function:`~matplotlib.spines.Spine.set_position`</span>
<span class="sd"> for more information.</span>
<span class="sd"> The default position is ``('outward',0)``.</span>
<span class="sd"> Spines are subclasses of class:`~matplotlib.patches.Patch`, and</span>
<span class="sd"> inherit much of their behavior.</span>
<span class="sd"> Spines draw a line, a circle, or an arc depending if</span>
<span class="sd"> function:`~matplotlib.spines.Spine.set_patch_line`,</span>
<span class="sd"> function:`~matplotlib.spines.Spine.set_patch_circle`, or</span>
<span class="sd"> function:`~matplotlib.spines.Spine.set_patch_arc` has been called.</span>
<span class="sd"> Line-like is the default.</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">"Spine"</span>
<span class="nd">@docstring</span><span class="o">.</span><span class="n">dedent_interpd</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> - *axes* : the Axes instance containing the spine</span>
<span class="sd"> - *spine_type* : a string specifying the spine type</span>
<span class="sd"> - *path* : the path instance used to draw the spine</span>
<span class="sd"> Valid kwargs are:</span>
<span class="sd"> %(Patch)s</span>
<span class="sd"> """</span>
<span class="nb">super</span><span class="p">(</span><span class="n">Spine</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axes</span> <span class="o">=</span> <span class="n">axes</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_figure</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">figure</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="o">=</span> <span class="n">spine_type</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_facecolor</span><span class="p">(</span><span class="s1">'none'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_edgecolor</span><span class="p">(</span><span class="n">rcParams</span><span class="p">[</span><span class="s1">'axes.edgecolor'</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_linewidth</span><span class="p">(</span><span class="n">rcParams</span><span class="p">[</span><span class="s1">'axes.linewidth'</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_capstyle</span><span class="p">(</span><span class="s1">'projecting'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axis</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_zorder</span><span class="p">(</span><span class="mf">2.5</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_transform</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transData</span><span class="p">)</span> <span class="c1"># default transform</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_bounds</span> <span class="o">=</span> <span class="kc">None</span> <span class="c1"># default bounds</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_smart_bounds</span> <span class="o">=</span> <span class="kc">False</span>
<span class="c1"># Defer initial position determination. (Not much support for</span>
<span class="c1"># non-rectangular axes is currently implemented, and this lets</span>
<span class="c1"># them pass through the spines machinery without errors.)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_position</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">matplotlib</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">Path</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s2">"'path' must be an instance of 'matplotlib.path.Path'"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_path</span> <span class="o">=</span> <span class="n">path</span>
<span class="c1"># To support drawing both linear and circular spines, this</span>
<span class="c1"># class implements Patch behavior three ways. If</span>
<span class="c1"># self._patch_type == 'line', behave like a mpatches.PathPatch</span>
<span class="c1"># instance. If self._patch_type == 'circle', behave like a</span>
<span class="c1"># mpatches.Ellipse instance. If self._patch_type == 'arc', behave like</span>
<span class="c1"># a mpatches.Arc instance.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="o">=</span> <span class="s1">'line'</span>
<span class="c1"># Behavior copied from mpatches.Ellipse:</span>
<span class="c1"># Note: This cannot be calculated until this is added to an Axes</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_transform</span> <span class="o">=</span> <span class="n">mtransforms</span><span class="o">.</span><span class="n">IdentityTransform</span><span class="p">()</span>
<div class="viewcode-block" id="Spine.set_smart_bounds"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_smart_bounds">[docs]</a> <span class="k">def</span> <span class="nf">set_smart_bounds</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="sd">"""set the spine and associated axis to have smart bounds"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_smart_bounds</span> <span class="o">=</span> <span class="n">value</span>
<span class="c1"># also set the axis if possible</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_smart_bounds</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_smart_bounds</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.get_smart_bounds"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_smart_bounds">[docs]</a> <span class="k">def</span> <span class="nf">get_smart_bounds</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""get whether the spine has smart bounds"""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_smart_bounds</span></div>
<div class="viewcode-block" id="Spine.set_patch_arc"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_patch_arc">[docs]</a> <span class="k">def</span> <span class="nf">set_patch_arc</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">,</span> <span class="n">theta1</span><span class="p">,</span> <span class="n">theta2</span><span class="p">):</span>
<span class="sd">"""set the spine to be arc-like"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="o">=</span> <span class="s1">'arc'</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_center</span> <span class="o">=</span> <span class="n">center</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_width</span> <span class="o">=</span> <span class="n">radius</span> <span class="o">*</span> <span class="mi">2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_height</span> <span class="o">=</span> <span class="n">radius</span> <span class="o">*</span> <span class="mi">2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_theta1</span> <span class="o">=</span> <span class="n">theta1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_theta2</span> <span class="o">=</span> <span class="n">theta2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="o">.</span><span class="n">arc</span><span class="p">(</span><span class="n">theta1</span><span class="p">,</span> <span class="n">theta2</span><span class="p">)</span>
<span class="c1"># arc drawn on axes transform</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_transform</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transAxes</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.set_patch_circle"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_patch_circle">[docs]</a> <span class="k">def</span> <span class="nf">set_patch_circle</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">):</span>
<span class="sd">"""set the spine to be circular"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="o">=</span> <span class="s1">'circle'</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_center</span> <span class="o">=</span> <span class="n">center</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_width</span> <span class="o">=</span> <span class="n">radius</span> <span class="o">*</span> <span class="mi">2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_height</span> <span class="o">=</span> <span class="n">radius</span> <span class="o">*</span> <span class="mi">2</span>
<span class="c1"># circle drawn on axes transform</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_transform</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transAxes</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.set_patch_line"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_patch_line">[docs]</a> <span class="k">def</span> <span class="nf">set_patch_line</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""set the spine to be linear"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="o">=</span> <span class="s1">'line'</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<span class="c1"># Behavior copied from mpatches.Ellipse:</span>
<span class="k">def</span> <span class="nf">_recompute_transform</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""NOTE: This cannot be called until after this has been added</span>
<span class="sd"> to an Axes, otherwise unit conversion will fail. This</span>
<span class="sd"> makes it very important to call the accessor method and</span>
<span class="sd"> not directly access the transformation member variable.</span>
<span class="sd"> """</span>
<span class="k">assert</span> <span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'arc'</span><span class="p">,</span> <span class="s1">'circle'</span><span class="p">)</span>
<span class="n">center</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">convert_xunits</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_center</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">convert_yunits</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_center</span><span class="p">[</span><span class="mi">1</span><span class="p">]))</span>
<span class="n">width</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">convert_xunits</span><span class="p">(</span><span class="bp">self</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="bp">self</span><span class="o">.</span><span class="n">convert_yunits</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_height</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_patch_transform</span> <span class="o">=</span> <span class="n">mtransforms</span><span class="o">.</span><span class="n">Affine2D</span><span class="p">()</span> \
<span class="o">.</span><span class="n">scale</span><span class="p">(</span><span class="n">width</span> <span class="o">*</span> <span class="mf">0.5</span><span class="p">,</span> <span class="n">height</span> <span class="o">*</span> <span class="mf">0.5</span><span class="p">)</span> \
<span class="o">.</span><span class="n">translate</span><span class="p">(</span><span class="o">*</span><span class="n">center</span><span class="p">)</span>
<div class="viewcode-block" id="Spine.get_patch_transform"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_patch_transform">[docs]</a> <span class="k">def</span> <span class="nf">get_patch_transform</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'arc'</span><span class="p">,</span> <span class="s1">'circle'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_recompute_transform</span><span class="p">()</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_patch_transform</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">super</span><span class="p">(</span><span class="n">Spine</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">get_patch_transform</span><span class="p">()</span></div>
<div class="viewcode-block" id="Spine.get_path"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_path">[docs]</a> <span class="k">def</span> <span class="nf">get_path</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_path</span></div>
<span class="k">def</span> <span class="nf">_ensure_position_is_set</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_position</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># default position</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_position</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'outward'</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)</span> <span class="c1"># in points</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_position</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_position</span><span class="p">)</span>
<div class="viewcode-block" id="Spine.register_axis"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.register_axis">[docs]</a> <span class="k">def</span> <span class="nf">register_axis</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">axis</span><span class="p">):</span>
<span class="sd">"""register an axis</span>
<span class="sd"> An axis should be registered with its corresponding spine from</span>
<span class="sd"> the Axes instance. This allows the spine to clear any axis</span>
<span class="sd"> properties when needed.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axis</span> <span class="o">=</span> <span class="n">axis</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">axis</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axis</span><span class="o">.</span><span class="n">cla</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.cla"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.cla">[docs]</a> <span class="k">def</span> <span class="nf">cla</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Clear the current spine"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_position</span> <span class="o">=</span> <span class="kc">None</span> <span class="c1"># clear position</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">axis</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axis</span><span class="o">.</span><span class="n">cla</span><span class="p">()</span></div>
<div class="viewcode-block" id="Spine.is_frame_like"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.is_frame_like">[docs]</a> <span class="k">def</span> <span class="nf">is_frame_like</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""return True if directly on axes frame</span>
<span class="sd"> This is useful for determining if a spine is the edge of an</span>
<span class="sd"> old style MPL plot. If so, this function will return True.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ensure_position_is_set</span><span class="p">()</span>
<span class="n">position</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_position</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">position</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span>
<span class="k">if</span> <span class="n">position</span> <span class="o">==</span> <span class="s1">'center'</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'axes'</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">position</span> <span class="o">==</span> <span class="s1">'zero'</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'data'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">position</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"position should be 2-tuple"</span><span class="p">)</span>
<span class="n">position_type</span><span class="p">,</span> <span class="n">amount</span> <span class="o">=</span> <span class="n">position</span>
<span class="k">if</span> <span class="n">position_type</span> <span class="o">==</span> <span class="s1">'outward'</span> <span class="ow">and</span> <span class="n">amount</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span></div>
<span class="k">def</span> <span class="nf">_adjust_location</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""automatically set spine bounds to the view interval"""</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'circle'</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_bounds</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">):</span>
<span class="n">low</span><span class="p">,</span> <span class="n">high</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">viewLim</span><span class="o">.</span><span class="n">intervaly</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">):</span>
<span class="n">low</span><span class="p">,</span> <span class="n">high</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">viewLim</span><span class="o">.</span><span class="n">intervalx</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unknown spine spine_type: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_smart_bounds</span><span class="p">:</span>
<span class="c1"># attempt to set bounds in sophisticated way</span>
<span class="c1"># handle inverted limits</span>
<span class="n">viewlim_low</span><span class="p">,</span> <span class="n">viewlim_high</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">([</span><span class="n">low</span><span class="p">,</span> <span class="n">high</span><span class="p">])</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">):</span>
<span class="n">datalim_low</span><span class="p">,</span> <span class="n">datalim_high</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">dataLim</span><span class="o">.</span><span class="n">intervaly</span>
<span class="n">ticks</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_yticks</span><span class="p">()</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">):</span>
<span class="n">datalim_low</span><span class="p">,</span> <span class="n">datalim_high</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">dataLim</span><span class="o">.</span><span class="n">intervalx</span>
<span class="n">ticks</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_xticks</span><span class="p">()</span>
<span class="c1"># handle inverted limits</span>
<span class="n">ticks</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">ticks</span><span class="p">)</span>
<span class="n">datalim_low</span><span class="p">,</span> <span class="n">datalim_high</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">([</span><span class="n">datalim_low</span><span class="p">,</span> <span class="n">datalim_high</span><span class="p">])</span>
<span class="k">if</span> <span class="n">datalim_low</span> <span class="o"><</span> <span class="n">viewlim_low</span><span class="p">:</span>
<span class="c1"># Data extends past view. Clip line to view.</span>
<span class="n">low</span> <span class="o">=</span> <span class="n">viewlim_low</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># Data ends before view ends.</span>
<span class="n">cond</span> <span class="o">=</span> <span class="p">(</span><span class="n">ticks</span> <span class="o"><=</span> <span class="n">datalim_low</span><span class="p">)</span> <span class="o">&</span> <span class="p">(</span><span class="n">ticks</span> <span class="o">>=</span> <span class="n">viewlim_low</span><span class="p">)</span>
<span class="n">tickvals</span> <span class="o">=</span> <span class="n">ticks</span><span class="p">[</span><span class="n">cond</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">tickvals</span><span class="p">):</span>
<span class="c1"># A tick is less than or equal to lowest data point.</span>
<span class="n">low</span> <span class="o">=</span> <span class="n">tickvals</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># No tick is available</span>
<span class="n">low</span> <span class="o">=</span> <span class="n">datalim_low</span>
<span class="n">low</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">low</span><span class="p">,</span> <span class="n">viewlim_low</span><span class="p">)</span>
<span class="k">if</span> <span class="n">datalim_high</span> <span class="o">></span> <span class="n">viewlim_high</span><span class="p">:</span>
<span class="c1"># Data extends past view. Clip line to view.</span>
<span class="n">high</span> <span class="o">=</span> <span class="n">viewlim_high</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># Data ends before view ends.</span>
<span class="n">cond</span> <span class="o">=</span> <span class="p">(</span><span class="n">ticks</span> <span class="o">>=</span> <span class="n">datalim_high</span><span class="p">)</span> <span class="o">&</span> <span class="p">(</span><span class="n">ticks</span> <span class="o"><=</span> <span class="n">viewlim_high</span><span class="p">)</span>
<span class="n">tickvals</span> <span class="o">=</span> <span class="n">ticks</span><span class="p">[</span><span class="n">cond</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">tickvals</span><span class="p">):</span>
<span class="c1"># A tick is greater than or equal to highest data</span>
<span class="c1"># point.</span>
<span class="n">high</span> <span class="o">=</span> <span class="n">tickvals</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># No tick is available</span>
<span class="n">high</span> <span class="o">=</span> <span class="n">datalim_high</span>
<span class="n">high</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">high</span><span class="p">,</span> <span class="n">viewlim_high</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">low</span><span class="p">,</span> <span class="n">high</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_bounds</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_patch_type</span> <span class="o">==</span> <span class="s1">'arc'</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'bottom'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">direction</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_theta_direction</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span>
<span class="n">direction</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">offset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_theta_offset</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span>
<span class="n">offset</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">low</span> <span class="o">=</span> <span class="n">low</span> <span class="o">*</span> <span class="n">direction</span> <span class="o">+</span> <span class="n">offset</span>
<span class="n">high</span> <span class="o">=</span> <span class="n">high</span> <span class="o">*</span> <span class="n">direction</span> <span class="o">+</span> <span class="n">offset</span>
<span class="k">if</span> <span class="n">low</span> <span class="o">></span> <span class="n">high</span><span class="p">:</span>
<span class="n">low</span><span class="p">,</span> <span class="n">high</span> <span class="o">=</span> <span class="n">high</span><span class="p">,</span> <span class="n">low</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="o">.</span><span class="n">arc</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">rad2deg</span><span class="p">(</span><span class="n">low</span><span class="p">),</span> <span class="n">np</span><span class="o">.</span><span class="n">rad2deg</span><span class="p">(</span><span class="n">high</span><span class="p">))</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'bottom'</span><span class="p">:</span>
<span class="n">rmin</span><span class="p">,</span> <span class="n">rmax</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">viewLim</span><span class="o">.</span><span class="n">intervaly</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">rorigin</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_rorigin</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span>
<span class="n">rorigin</span> <span class="o">=</span> <span class="n">rmin</span>
<span class="n">scaled_diameter</span> <span class="o">=</span> <span class="p">(</span><span class="n">rmin</span> <span class="o">-</span> <span class="n">rorigin</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">rmax</span> <span class="o">-</span> <span class="n">rorigin</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_height</span> <span class="o">=</span> <span class="n">scaled_diameter</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_width</span> <span class="o">=</span> <span class="n">scaled_diameter</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unable to set bounds for spine "</span><span class="si">%s</span><span class="s1">"'</span> <span class="o">%</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">v1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_path</span><span class="o">.</span><span class="n">vertices</span>
<span class="k">assert</span> <span class="n">v1</span><span class="o">.</span><span class="n">shape</span> <span class="o">==</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span> <span class="s1">'unexpected vertices shape'</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">]:</span>
<span class="n">v1</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">low</span>
<span class="n">v1</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">high</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'bottom'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">]:</span>
<span class="n">v1</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">low</span>
<span class="n">v1</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">high</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unable to set bounds for spine "</span><span class="si">%s</span><span class="s1">"'</span> <span class="o">%</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<div class="viewcode-block" id="Spine.draw"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.draw">[docs]</a> <span class="nd">@allow_rasterization</span>
<span class="k">def</span> <span class="nf">draw</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">renderer</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_adjust_location</span><span class="p">()</span>
<span class="n">ret</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">Spine</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">draw</span><span class="p">(</span><span class="n">renderer</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">return</span> <span class="n">ret</span></div>
<span class="k">def</span> <span class="nf">_calc_offset_transform</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""calculate the offset transform performed by the spine"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ensure_position_is_set</span><span class="p">()</span>
<span class="n">position</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_position</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">position</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span>
<span class="k">if</span> <span class="n">position</span> <span class="o">==</span> <span class="s1">'center'</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'axes'</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">position</span> <span class="o">==</span> <span class="s1">'zero'</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'data'</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">assert</span> <span class="nb">len</span><span class="p">(</span><span class="n">position</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">,</span> <span class="s2">"position should be 2-tuple"</span>
<span class="n">position_type</span><span class="p">,</span> <span class="n">amount</span> <span class="o">=</span> <span class="n">position</span>
<span class="k">assert</span> <span class="n">position_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'axes'</span><span class="p">,</span> <span class="s1">'outward'</span><span class="p">,</span> <span class="s1">'data'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">position_type</span> <span class="o">==</span> <span class="s1">'outward'</span><span class="p">:</span>
<span class="k">if</span> <span class="n">amount</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="c1"># short circuit commonest case</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'identity'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">IdentityTransform</span><span class="p">())</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">]:</span>
<span class="n">offset_vec</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'left'</span><span class="p">:</span> <span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
<span class="s1">'right'</span><span class="p">:</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span>
<span class="s1">'bottom'</span><span class="p">:</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">),</span>
<span class="s1">'top'</span><span class="p">:</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="p">}[</span><span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">]</span>
<span class="c1"># calculate x and y offset in dots</span>
<span class="n">offset_x</span> <span class="o">=</span> <span class="n">amount</span> <span class="o">*</span> <span class="n">offset_vec</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">72.0</span>
<span class="n">offset_y</span> <span class="o">=</span> <span class="n">amount</span> <span class="o">*</span> <span class="n">offset_vec</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">72.0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'post'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">ScaledTranslation</span><span class="p">(</span>
<span class="n">offset_x</span><span class="p">,</span>
<span class="n">offset_y</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">figure</span><span class="o">.</span><span class="n">dpi_scale_trans</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s1">'unknown spine type "</span><span class="si">%s</span><span class="s1">": no spine '</span>
<span class="s1">'offset performed'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'identity'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">IdentityTransform</span><span class="p">())</span>
<span class="k">elif</span> <span class="n">position_type</span> <span class="o">==</span> <span class="s1">'axes'</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'pre'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">Affine2D</span><span class="o">.</span><span class="n">from_values</span><span class="p">(</span>
<span class="c1"># keep y unchanged, fix x at</span>
<span class="c1"># amount</span>
<span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">amount</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'bottom'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'pre'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">Affine2D</span><span class="o">.</span><span class="n">from_values</span><span class="p">(</span>
<span class="c1"># keep x unchanged, fix y at</span>
<span class="c1"># amount</span>
<span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">amount</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s1">'unknown spine type "</span><span class="si">%s</span><span class="s1">": no spine '</span>
<span class="s1">'offset performed'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'identity'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">IdentityTransform</span><span class="p">())</span>
<span class="k">elif</span> <span class="n">position_type</span> <span class="o">==</span> <span class="s1">'data'</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'right'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">):</span>
<span class="c1"># The right and top spines have a default position of 1 in</span>
<span class="c1"># axes coordinates. When specifying the position in data</span>
<span class="c1"># coordinates, we need to calculate the position relative to 0.</span>
<span class="n">amount</span> <span class="o">-=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'data'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">Affine2D</span><span class="p">()</span><span class="o">.</span><span class="n">translate</span><span class="p">(</span>
<span class="n">amount</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'bottom'</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'data'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">Affine2D</span><span class="p">()</span><span class="o">.</span><span class="n">translate</span><span class="p">(</span>
<span class="mi">0</span><span class="p">,</span> <span class="n">amount</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s1">'unknown spine type "</span><span class="si">%s</span><span class="s1">": no spine '</span>
<span class="s1">'offset performed'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'identity'</span><span class="p">,</span>
<span class="n">mtransforms</span><span class="o">.</span><span class="n">IdentityTransform</span><span class="p">())</span>
<div class="viewcode-block" id="Spine.set_position"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_position">[docs]</a> <span class="k">def</span> <span class="nf">set_position</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">position</span><span class="p">):</span>
<span class="sd">"""set the position of the spine</span>
<span class="sd"> Spine position is specified by a 2 tuple of (position type,</span>
<span class="sd"> amount). The position types are:</span>
<span class="sd"> * 'outward' : place the spine out from the data area by the</span>
<span class="sd"> specified number of points. (Negative values specify placing the</span>
<span class="sd"> spine inward.)</span>
<span class="sd"> * 'axes' : place the spine at the specified Axes coordinate (from</span>
<span class="sd"> 0.0-1.0).</span>
<span class="sd"> * 'data' : place the spine at the specified data coordinate.</span>
<span class="sd"> Additionally, shorthand notations define a special positions:</span>
<span class="sd"> * 'center' -> ('axes',0.5)</span>
<span class="sd"> * 'zero' -> ('data', 0.0)</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">position</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'center'</span><span class="p">,</span> <span class="s1">'zero'</span><span class="p">):</span>
<span class="c1"># special positions</span>
<span class="k">pass</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">position</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"position should be 'center' or 2-tuple"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">position</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'outward'</span><span class="p">,</span> <span class="s1">'axes'</span><span class="p">,</span> <span class="s1">'data'</span><span class="p">]:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"position[0] should be one of 'outward', "</span>
<span class="s2">"'axes', or 'data' "</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_position</span> <span class="o">=</span> <span class="n">position</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_calc_offset_transform</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_transform</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_spine_transform</span><span class="p">())</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">axis</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axis</span><span class="o">.</span><span class="n">reset_ticks</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.get_position"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_position">[docs]</a> <span class="k">def</span> <span class="nf">get_position</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""get the spine position"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ensure_position_is_set</span><span class="p">()</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_position</span></div>
<div class="viewcode-block" id="Spine.get_spine_transform"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_spine_transform">[docs]</a> <span class="k">def</span> <span class="nf">get_spine_transform</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""get the spine transform"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_ensure_position_is_set</span><span class="p">()</span>
<span class="n">what</span><span class="p">,</span> <span class="n">how</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spine_transform</span>
<span class="k">if</span> <span class="n">what</span> <span class="o">==</span> <span class="s1">'data'</span><span class="p">:</span>
<span class="c1"># special case data based spine locations</span>
<span class="n">data_xform</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transScale</span> <span class="o">+</span> \
<span class="p">(</span><span class="n">how</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transLimits</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transAxes</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">]:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">mtransforms</span><span class="o">.</span><span class="n">blended_transform_factory</span><span class="p">(</span>
<span class="n">data_xform</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transData</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">]:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">mtransforms</span><span class="o">.</span><span class="n">blended_transform_factory</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">transData</span><span class="p">,</span> <span class="n">data_xform</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unknown spine spine_type: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="k">return</span> <span class="n">result</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'left'</span><span class="p">,</span> <span class="s1">'right'</span><span class="p">]:</span>
<span class="n">base_transform</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_yaxis_transform</span><span class="p">(</span><span class="n">which</span><span class="o">=</span><span class="s1">'grid'</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">'top'</span><span class="p">,</span> <span class="s1">'bottom'</span><span class="p">]:</span>
<span class="n">base_transform</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">axes</span><span class="o">.</span><span class="n">get_xaxis_transform</span><span class="p">(</span><span class="n">which</span><span class="o">=</span><span class="s1">'grid'</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unknown spine spine_type: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span>
<span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span><span class="p">)</span>
<span class="k">if</span> <span class="n">what</span> <span class="o">==</span> <span class="s1">'identity'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">base_transform</span>
<span class="k">elif</span> <span class="n">what</span> <span class="o">==</span> <span class="s1">'post'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">base_transform</span> <span class="o">+</span> <span class="n">how</span>
<span class="k">elif</span> <span class="n">what</span> <span class="o">==</span> <span class="s1">'pre'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">how</span> <span class="o">+</span> <span class="n">base_transform</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"unknown spine_transform type: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">what</span><span class="p">)</span></div>
<div class="viewcode-block" id="Spine.set_bounds"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_bounds">[docs]</a> <span class="k">def</span> <span class="nf">set_bounds</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">low</span><span class="p">,</span> <span class="n">high</span><span class="p">):</span>
<span class="sd">"""Set the bounds of the spine."""</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'circle'</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s1">'set_bounds() method incompatible with circular spines'</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_bounds</span> <span class="o">=</span> <span class="p">(</span><span class="n">low</span><span class="p">,</span> <span class="n">high</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div>
<div class="viewcode-block" id="Spine.get_bounds"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.get_bounds">[docs]</a> <span class="k">def</span> <span class="nf">get_bounds</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Get the bounds of the spine."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_bounds</span></div>
<div class="viewcode-block" id="Spine.linear_spine"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.linear_spine">[docs]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">linear_spine</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> (staticmethod) Returns a linear :class:`Spine`.</span>
<span class="sd"> """</span>
<span class="c1"># all values of 13 get replaced upon call to set_bounds()</span>
<span class="k">if</span> <span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'left'</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="p">([(</span><span class="mf">0.0</span><span class="p">,</span> <span class="mi">13</span><span class="p">),</span> <span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="mi">13</span><span class="p">)])</span>
<span class="k">elif</span> <span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'right'</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="p">([(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mi">13</span><span class="p">),</span> <span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mi">13</span><span class="p">)])</span>
<span class="k">elif</span> <span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'bottom'</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="p">([(</span><span class="mi">13</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">),</span> <span class="p">(</span><span class="mi">13</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)])</span>
<span class="k">elif</span> <span class="n">spine_type</span> <span class="o">==</span> <span class="s1">'top'</span><span class="p">:</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="p">([(</span><span class="mi">13</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">),</span> <span class="p">(</span><span class="mi">13</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">)])</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'unable to make path for spine "</span><span class="si">%s</span><span class="s1">"'</span> <span class="o">%</span> <span class="n">spine_type</span><span class="p">)</span>
<span class="n">result</span> <span class="o">=</span> <span class="bp">cls</span><span class="p">(</span><span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="n">result</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="n">rcParams</span><span class="p">[</span><span class="s1">'axes.spines.</span><span class="si">{0}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">spine_type</span><span class="p">)])</span>
<span class="k">return</span> <span class="n">result</span></div>
<div class="viewcode-block" id="Spine.arc_spine"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.arc_spine">[docs]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">arc_spine</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">,</span> <span class="n">theta1</span><span class="p">,</span> <span class="n">theta2</span><span class="p">,</span>
<span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> (classmethod) Returns an arc :class:`Spine`.</span>
<span class="sd"> """</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</span><span class="o">.</span><span class="n">Path</span><span class="o">.</span><span class="n">arc</span><span class="p">(</span><span class="n">theta1</span><span class="p">,</span> <span class="n">theta2</span><span class="p">)</span>
<span class="n">result</span> <span class="o">=</span> <span class="bp">cls</span><span class="p">(</span><span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="n">result</span><span class="o">.</span><span class="n">set_patch_arc</span><span class="p">(</span><span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">,</span> <span class="n">theta1</span><span class="p">,</span> <span class="n">theta2</span><span class="p">)</span>
<span class="k">return</span> <span class="n">result</span></div>
<div class="viewcode-block" id="Spine.circular_spine"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.circular_spine">[docs]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">circular_spine</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">axes</span><span class="p">,</span> <span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> (staticmethod) Returns a circular :class:`Spine`.</span>
<span class="sd"> """</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">mpath</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="n">spine_type</span> <span class="o">=</span> <span class="s1">'circle'</span>
<span class="n">result</span> <span class="o">=</span> <span class="bp">cls</span><span class="p">(</span><span class="n">axes</span><span class="p">,</span> <span class="n">spine_type</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="n">result</span><span class="o">.</span><span class="n">set_patch_circle</span><span class="p">(</span><span class="n">center</span><span class="p">,</span> <span class="n">radius</span><span class="p">)</span>
<span class="k">return</span> <span class="n">result</span></div>
<div class="viewcode-block" id="Spine.set_color"><a class="viewcode-back" href="../../api/spines_api.html#matplotlib.spines.Spine.set_color">[docs]</a> <span class="k">def</span> <span class="nf">set_color</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Set the edgecolor.</span>
<span class="sd"> ACCEPTS: matplotlib color arg or sequence of rgba tuples</span>
<span class="sd"> .. seealso::</span>
<span class="sd"> :meth:`set_facecolor`, :meth:`set_edgecolor`</span>
<span class="sd"> For setting the edge or face color individually.</span>
<span class="sd"> """</span>
<span class="c1"># The facecolor of a spine is always 'none' by default -- let</span>
<span class="c1"># the user change it manually if desired.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">set_edgecolor</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stale</span> <span class="o">=</span> <span class="kc">True</span></div></div>
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50%{ opacity:0; }
75% {opacity: 0; -ms-transform: translateY(20px);}
100% {opacity: 1; -ms-transform: translateY(0);}
}
</style>
<div id="fc-fade" class="fc-black_overlay" onclick="close_window()"></div>
<div id="fc-light" class="fc-white_content">
<div id="fc-main" class="fc-main-box">
<div id="fc-close" class="fc-widget_close" onclick="close_window()">
</div><iframe id="fc-myFrame" iframe height="580" width="925" style="border: 0;
border-radius:5px 5px 5px 5px; box-shadow:0 0 8px rgba(0, 0, 0, 0.5);" scrolling="no" src=""></iframe></div>
</div>
<!--END Flipcause Main Integration Code-->
</footer>
</html>