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<div class="section" id="api-example-code-logo2-py">
<span id="api-logo2"></span><h1>api example code: logo2.py<a class="headerlink" href="#api-example-code-logo2-py" title="Permalink to this headline">¶</a></h1>
<p>(<a class="reference external" href="../../mpl_examples/api/logo2.py">Source code</a>, <a class="reference external" href="../../mpl_examples/api/logo2.png">png</a>, <a class="reference external" href="../../mpl_examples/api/logo2.hires.png">hires.png</a>, <a class="reference external" href="../../mpl_examples/api/logo2.pdf">pdf</a>)</p>
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<div class="highlight-python"><div class="highlight"><pre><span class="sd">"""</span>
<span class="sd">Thanks to Tony Yu <tsyu80@gmail.com> for the logo design</span>
<span class="sd">"""</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
<span class="kn">import</span> <span class="nn">matplotlib</span> <span class="kn">as</span> <span class="nn">mpl</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.cm</span> <span class="kn">as</span> <span class="nn">cm</span>
<span class="n">mpl</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">'xtick.labelsize'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">mpl</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">'ytick.labelsize'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">12</span>
<span class="n">mpl</span><span class="o">.</span><span class="n">rcParams</span><span class="p">[</span><span class="s">'axes.edgecolor'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'gray'</span>
<span class="n">axalpha</span> <span class="o">=</span> <span class="mf">0.05</span>
<span class="c">#figcolor = '#EFEFEF'</span>
<span class="n">figcolor</span> <span class="o">=</span> <span class="s">'white'</span>
<span class="n">dpi</span> <span class="o">=</span> <span class="mi">80</span>
<span class="n">fig</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="mi">6</span><span class="p">,</span> <span class="mf">1.1</span><span class="p">),</span><span class="n">dpi</span><span class="o">=</span><span class="n">dpi</span><span class="p">)</span>
<span class="n">fig</span><span class="o">.</span><span class="n">figurePatch</span><span class="o">.</span><span class="n">set_edgecolor</span><span class="p">(</span><span class="n">figcolor</span><span class="p">)</span>
<span class="n">fig</span><span class="o">.</span><span class="n">figurePatch</span><span class="o">.</span><span class="n">set_facecolor</span><span class="p">(</span><span class="n">figcolor</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">add_math_background</span><span class="p">():</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_axes</span><span class="p">([</span><span class="mf">0.</span><span class="p">,</span> <span class="mf">0.</span><span class="p">,</span> <span class="mf">1.</span><span class="p">,</span> <span class="mf">1.</span><span class="p">])</span>
<span class="n">text</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">text</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="s">r"$W^{3\beta}_{\delta_1 \rho_1 \sigma_2} = U^{3\beta}_{\delta_1 \rho_1} + \frac{1}{8 \pi 2} \int^{\alpha_2}_{\alpha_2} d \alpha^\prime_2 \left[\frac{ U^{2\beta}_{\delta_1 \rho_1} - \alpha^\prime_2U^{1\beta}_{\rho_1 \sigma_2} }{U^{0\beta}_{\rho_1 \sigma_2}}\right]$"</span><span class="p">,</span> <span class="p">(</span><span class="mf">0.7</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">),</span> <span class="mi">20</span><span class="p">))</span>
<span class="n">text</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="s">r"$\frac{d\rho}{d t} + \rho \vec{v}\cdot\nabla\vec{v} = -\nabla p + \mu\nabla^2 \vec{v} + \rho \vec{g}$"</span><span class="p">,</span>
<span class="p">(</span><span class="mf">0.35</span><span class="p">,</span> <span class="mf">0.9</span><span class="p">),</span> <span class="mi">20</span><span class="p">))</span>
<span class="n">text</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="s">r"$\int_{-\infty}^\infty e^{-x^2}dx=\sqrt{\pi}$"</span><span class="p">,</span>
<span class="p">(</span><span class="mf">0.15</span><span class="p">,</span> <span class="mf">0.3</span><span class="p">),</span> <span class="mi">25</span><span class="p">))</span>
<span class="c">#text.append((r"$E = mc^2 = \sqrt{{m_0}^2c^4 + p^2c^2}$",</span>
<span class="c"># (0.7, 0.42), 30))</span>
<span class="n">text</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="s">r"$F_G = G\frac{m_1m_2}{r^2}$"</span><span class="p">,</span>
<span class="p">(</span><span class="mf">0.85</span><span class="p">,</span> <span class="mf">0.7</span><span class="p">),</span> <span class="mi">30</span><span class="p">))</span>
<span class="k">for</span> <span class="n">eq</span><span class="p">,</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">),</span> <span class="n">size</span> <span class="ow">in</span> <span class="n">text</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="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">eq</span><span class="p">,</span> <span class="n">ha</span><span class="o">=</span><span class="s">'center'</span><span class="p">,</span> <span class="n">va</span><span class="o">=</span><span class="s">'center'</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">"#11557c"</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.25</span><span class="p">,</span>
<span class="n">transform</span><span class="o">=</span><span class="n">ax</span><span class="o">.</span><span class="n">transAxes</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="n">size</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_axis_off</span><span class="p">()</span>
<span class="k">return</span> <span class="n">ax</span>
<span class="k">def</span> <span class="nf">add_matplotlib_text</span><span class="p">(</span><span class="n">ax</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">0.95</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="s">'matplotlib'</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">'#11557c'</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="mi">65</span><span class="p">,</span>
<span class="n">ha</span><span class="o">=</span><span class="s">'right'</span><span class="p">,</span> <span class="n">va</span><span class="o">=</span><span class="s">'center'</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">1.0</span><span class="p">,</span> <span class="n">transform</span><span class="o">=</span><span class="n">ax</span><span class="o">.</span><span class="n">transAxes</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">add_polar_bar</span><span class="p">():</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_axes</span><span class="p">([</span><span class="mf">0.025</span><span class="p">,</span> <span class="mf">0.075</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">,</span> <span class="mf">0.85</span><span class="p">],</span> <span class="n">polar</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">axesPatch</span><span class="o">.</span><span class="n">set_alpha</span><span class="p">(</span><span class="n">axalpha</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_axisbelow</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
<span class="n">N</span> <span class="o">=</span> <span class="mi">7</span>
<span class="n">arc</span> <span class="o">=</span> <span class="mf">2.</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">pi</span>
<span class="n">theta</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">arc</span><span class="p">,</span> <span class="n">arc</span><span class="o">/</span><span class="n">N</span><span class="p">)</span>
<span class="n">radii</span> <span class="o">=</span> <span class="mi">10</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mf">0.2</span><span class="p">,</span> <span class="mf">0.6</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">,</span> <span class="mf">0.7</span><span class="p">,</span> <span class="mf">0.4</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">])</span>
<span class="n">width</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">pi</span> <span class="o">/</span> <span class="mi">4</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mf">0.4</span><span class="p">,</span> <span class="mf">0.4</span><span class="p">,</span> <span class="mf">0.6</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.3</span><span class="p">])</span>
<span class="n">bars</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">bar</span><span class="p">(</span><span class="n">theta</span><span class="p">,</span> <span class="n">radii</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">bottom</span><span class="o">=</span><span class="mf">0.0</span><span class="p">)</span>
<span class="k">for</span> <span class="n">r</span><span class="p">,</span> <span class="n">bar</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">radii</span><span class="p">,</span> <span class="n">bars</span><span class="p">):</span>
<span class="n">bar</span><span class="o">.</span><span class="n">set_facecolor</span><span class="p">(</span><span class="n">cm</span><span class="o">.</span><span class="n">jet</span><span class="p">(</span><span class="n">r</span><span class="o">/</span><span class="mf">10.</span><span class="p">))</span>
<span class="n">bar</span><span class="o">.</span><span class="n">set_alpha</span><span class="p">(</span><span class="mf">0.6</span><span class="p">)</span>
<span class="k">for</span> <span class="n">label</span> <span class="ow">in</span> <span class="n">ax</span><span class="o">.</span><span class="n">get_xticklabels</span><span class="p">()</span> <span class="o">+</span> <span class="n">ax</span><span class="o">.</span><span class="n">get_yticklabels</span><span class="p">():</span>
<span class="n">label</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="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">ax</span><span class="o">.</span><span class="n">get_ygridlines</span><span class="p">()</span> <span class="o">+</span> <span class="n">ax</span><span class="o">.</span><span class="n">get_xgridlines</span><span class="p">():</span>
<span class="n">line</span><span class="o">.</span><span class="n">set_lw</span><span class="p">(</span><span class="mf">0.8</span><span class="p">)</span>
<span class="n">line</span><span class="o">.</span><span class="n">set_alpha</span><span class="p">(</span><span class="mf">0.9</span><span class="p">)</span>
<span class="n">line</span><span class="o">.</span><span class="n">set_ls</span><span class="p">(</span><span class="s">'-'</span><span class="p">)</span>
<span class="n">line</span><span class="o">.</span><span class="n">set_color</span><span class="p">(</span><span class="s">'0.5'</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_yticks</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">2</span><span class="p">))</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_rmax</span><span class="p">(</span><span class="mi">9</span><span class="p">)</span>
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">'__main__'</span><span class="p">:</span>
<span class="n">main_axes</span> <span class="o">=</span> <span class="n">add_math_background</span><span class="p">()</span>
<span class="n">add_polar_bar</span><span class="p">()</span>
<span class="n">add_matplotlib_text</span><span class="p">(</span><span class="n">main_axes</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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