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<div class="section" id="pylab-examples-example-code-usetex-baseline-test-py">
<span id="pylab-examples-usetex-baseline-test"></span><h1>pylab_examples example code: usetex_baseline_test.py<a class="headerlink" href="#pylab-examples-example-code-usetex-baseline-test-py" title="Permalink to this headline">ΒΆ</a></h1>
<p>(<a class="reference external" href="../../mpl_examples/pylab_examples/usetex_baseline_test.py">Source code</a>)</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">matplotlib</span>
<span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="kn">as</span> <span class="nn">plt</span>
<span class="kn">import</span> <span class="nn">matplotlib.axes</span> <span class="kn">as</span> <span class="nn">maxes</span>
<span class="kn">from</span> <span class="nn">matplotlib</span> <span class="kn">import</span> <span class="n">rcParams</span>
<span class="n">rcParams</span><span class="p">[</span><span class="s">'text.usetex'</span><span class="p">]</span><span class="o">=</span><span class="bp">True</span>
<span class="n">rcParams</span><span class="p">[</span><span class="s">'text.latex.unicode'</span><span class="p">]</span><span class="o">=</span><span class="bp">True</span>
<span class="k">class</span> <span class="nc">Axes</span><span class="p">(</span><span class="n">maxes</span><span class="o">.</span><span class="n">Axes</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A hackish way to simultaneously draw texts w/ usetex=True and</span>
<span class="sd"> usetex=False in the same figure. It does not work in the ps backend.</span>
<span class="sd"> """</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="o">*</span><span class="n">kl</span><span class="p">,</span> <span class="o">**</span><span class="n">kw</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">usetex</span> <span class="o">=</span> <span class="n">kw</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s">"usetex"</span><span class="p">,</span> <span class="s">"False"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">preview</span> <span class="o">=</span> <span class="n">kw</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s">"preview"</span><span class="p">,</span> <span class="s">"False"</span><span class="p">)</span>
<span class="n">maxes</span><span class="o">.</span><span class="n">Axes</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">kl</span><span class="p">,</span> <span class="o">**</span><span class="n">kw</span><span class="p">)</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="n">usetex</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.usetex"</span><span class="p">]</span>
<span class="n">preview</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.latex.preview"</span><span class="p">]</span>
<span class="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.usetex"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">usetex</span>
<span class="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.latex.preview"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">preview</span>
<span class="n">maxes</span><span class="o">.</span><span class="n">Axes</span><span class="o">.</span><span class="n">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="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.usetex"</span><span class="p">]</span> <span class="o">=</span> <span class="n">usetex</span>
<span class="n">plt</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">"text.latex.preview"</span><span class="p">]</span> <span class="o">=</span> <span class="n">preview</span>
<span class="n">Subplot</span> <span class="o">=</span> <span class="n">maxes</span><span class="o">.</span><span class="n">subplot_class_factory</span><span class="p">(</span><span class="n">Axes</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">test_window_extent</span><span class="p">(</span><span class="n">ax</span><span class="p">,</span> <span class="n">usetex</span><span class="p">,</span> <span class="n">preview</span><span class="p">):</span>
<span class="n">va</span> <span class="o">=</span> <span class="s">"baseline"</span>
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="c">#t = ax.text(0., 0., r"mlp", va="baseline", size=150)</span>
<span class="n">text_kw</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">va</span><span class="o">=</span><span class="n">va</span><span class="p">,</span>
<span class="n">size</span><span class="o">=</span><span class="mi">50</span><span class="p">,</span>
<span class="n">bbox</span><span class="o">=</span><span class="nb">dict</span><span class="p">(</span><span class="n">pad</span><span class="o">=</span><span class="mf">0.</span><span class="p">,</span> <span class="n">ec</span><span class="o">=</span><span class="s">"k"</span><span class="p">,</span> <span class="n">fc</span><span class="o">=</span><span class="s">"none"</span><span class="p">))</span>
<span class="n">test_strings</span> <span class="o">=</span> <span class="p">[</span><span class="s">"lg"</span><span class="p">,</span> <span class="s">r"$\frac{1}{2}\pi$"</span><span class="p">,</span>
<span class="s">r"$p^{3^A}$"</span><span class="p">,</span> <span class="s">r"$p_{3_2}$"</span><span class="p">]</span>
<span class="n">ax</span><span class="o">.</span><span class="n">axvline</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">"r"</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">s</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">test_strings</span><span class="p">):</span>
<span class="n">ax</span><span class="o">.</span><span class="n">axhline</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">"r"</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="mf">0.</span><span class="p">,</span> <span class="mi">3</span><span class="o">-</span><span class="n">i</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="o">**</span><span class="n">text_kw</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_xlim</span><span class="p">(</span><span class="o">-</span><span class="mf">0.1</span><span class="p">,</span><span class="mf">1.1</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_ylim</span><span class="p">(</span><span class="o">-.</span><span class="mi">8</span><span class="p">,</span><span class="mf">3.9</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_title</span><span class="p">(</span><span class="s">"usetex=</span><span class="si">%s</span><span class="se">\n</span><span class="s">preview=</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">usetex</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">preview</span><span class="p">)))</span>
<span class="n">F</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mf">2.</span><span class="o">*</span><span class="mi">3</span><span class="p">,</span><span class="mf">6.5</span><span class="p">))</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">usetex</span><span class="p">,</span> <span class="n">preview</span> <span class="ow">in</span> <span class="p">[[</span><span class="mi">0</span><span class="p">,</span> <span class="bp">False</span><span class="p">,</span> <span class="bp">False</span><span class="p">],</span>
<span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="bp">True</span><span class="p">,</span> <span class="bp">False</span><span class="p">],</span>
<span class="p">[</span><span class="mi">2</span><span class="p">,</span> <span class="bp">True</span><span class="p">,</span> <span class="bp">True</span><span class="p">]]:</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">Subplot</span><span class="p">(</span><span class="n">F</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">usetex</span><span class="o">=</span><span class="n">usetex</span><span class="p">,</span> <span class="n">preview</span><span class="o">=</span><span class="n">preview</span><span class="p">)</span>
<span class="n">F</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span>
<span class="n">F</span><span class="o">.</span><span class="n">subplots_adjust</span><span class="p">(</span><span class="n">top</span><span class="o">=</span><span class="mf">0.85</span><span class="p">)</span>
<span class="n">test_window_extent</span><span class="p">(</span><span class="n">ax</span><span class="p">,</span> <span class="n">usetex</span><span class="o">=</span><span class="n">usetex</span><span class="p">,</span> <span class="n">preview</span><span class="o">=</span><span class="n">preview</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">draw</span><span class="p">()</span>
<span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
</pre></div>
</div>
<p>Keywords: python, matplotlib, pylab, example, codex (see <a class="reference internal" href="../../faq/howto_faq.html#how-to-search-examples"><em>Search examples</em></a>)</p>
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