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search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="labels-and-colors"> <span id="drawing-labels-and-colors"></span><h1>Labels And Colors<a class="headerlink" href="#labels-and-colors" title="Permalink to this headline">ΒΆ</a></h1> <img alt="../../_images/labels_and_colors.png" src="../../_images/labels_and_colors.png" /> <p>[<a class="reference external" href="../../_static/examples/labels_and_colors.py">source code</a>]</p> <div class="highlight-python"><div class="highlight"><pre><span class="c">#!/usr/bin/env python</span> <span class="sd">"""</span> <span class="sd">Draw a graph with matplotlib, color by degree.</span> <span class="sd">You must have matplotlib for this to work.</span> <span class="sd">"""</span> <span class="n">__author__</span> <span class="o">=</span> <span class="s">"""Aric Hagberg (hagberg@lanl.gov)"""</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">networkx</span> <span class="kn">as</span> <span class="nn">nx</span> <span class="n">G</span><span class="o">=</span><span class="n">nx</span><span class="o">.</span><span class="n">cubical_graph</span><span class="p">()</span> <span class="n">pos</span><span class="o">=</span><span class="n">nx</span><span class="o">.</span><span class="n">spring_layout</span><span class="p">(</span><span class="n">G</span><span class="p">)</span> <span class="c"># positions for all nodes</span> <span class="c"># nodes</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_nodes</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span> <span class="n">nodelist</span><span class="o">=</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="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">],</span> <span class="n">node_color</span><span class="o">=</span><span class="s">'r'</span><span class="p">,</span> <span class="n">node_size</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.8</span><span class="p">)</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_nodes</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span> <span class="n">nodelist</span><span class="o">=</span><span class="p">[</span><span class="mi">4</span><span class="p">,</span><span class="mi">5</span><span class="p">,</span><span class="mi">6</span><span class="p">,</span><span class="mi">7</span><span class="p">],</span> <span class="n">node_color</span><span class="o">=</span><span class="s">'b'</span><span class="p">,</span> <span class="n">node_size</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.8</span><span class="p">)</span> <span class="c"># edges</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_edges</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span><span class="n">width</span><span class="o">=</span><span class="mf">1.0</span><span class="p">,</span><span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">)</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_edges</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span> <span class="n">edgelist</span><span class="o">=</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="mi">1</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="mi">3</span><span class="p">),(</span><span class="mi">3</span><span class="p">,</span><span class="mi">0</span><span class="p">)],</span> <span class="n">width</span><span class="o">=</span><span class="mi">8</span><span class="p">,</span><span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span><span class="n">edge_color</span><span class="o">=</span><span class="s">'r'</span><span class="p">)</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_edges</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span> <span class="n">edgelist</span><span class="o">=</span><span class="p">[(</span><span class="mi">4</span><span class="p">,</span><span class="mi">5</span><span class="p">),(</span><span class="mi">5</span><span class="p">,</span><span class="mi">6</span><span class="p">),(</span><span class="mi">6</span><span class="p">,</span><span class="mi">7</span><span class="p">),(</span><span class="mi">7</span><span class="p">,</span><span class="mi">4</span><span class="p">)],</span> <span class="n">width</span><span class="o">=</span><span class="mi">8</span><span class="p">,</span><span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span><span class="n">edge_color</span><span class="o">=</span><span class="s">'b'</span><span class="p">)</span> <span class="c"># some math labels</span> <span class="n">labels</span><span class="o">=</span><span class="p">{}</span> <span class="n">labels</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">=</span><span class="s">r'$a$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">=</span><span class="s">r'$b$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="o">=</span><span class="s">r'$c$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="o">=</span><span class="s">r'$d$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span><span class="o">=</span><span class="s">r'$\alpha$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">5</span><span class="p">]</span><span class="o">=</span><span class="s">r'$\beta$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">6</span><span class="p">]</span><span class="o">=</span><span class="s">r'$\gamma$'</span> <span class="n">labels</span><span class="p">[</span><span class="mi">7</span><span class="p">]</span><span class="o">=</span><span class="s">r'$\delta$'</span> <span class="n">nx</span><span class="o">.</span><span class="n">draw_networkx_labels</span><span class="p">(</span><span class="n">G</span><span class="p">,</span><span class="n">pos</span><span class="p">,</span><span class="n">labels</span><span class="p">,</span><span class="n">font_size</span><span class="o">=</span><span class="mi">16</span><span class="p">)</span> <span class="n">plt</span><span class="o">.</span><span class="n">axis</span><span class="p">(</span><span class="s">'off'</span><span class="p">)</span> <span class="n">plt</span><span class="o">.</span><span class="n">savefig</span><span class="p">(</span><span class="s">"labels_and_colors.png"</span><span class="p">)</span> <span class="c"># save as png</span> <span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span> <span class="c"># display</span> </pre></div> </div> </div> </div> </div> </div> <div class="clearer"></div> </div> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="lanl_routes.html" title="Lanl Routes" >next</a> |</li> <li class="right" > <a href="knuth_miles.html" title="Knuth Miles" >previous</a> |</li> <li><a href="http://networkx.github.com/">NetworkX Home </a> | </li> <li><a href="http://networkx.github.com/documentation.html">Documentation </a>| </li> <li><a href="http://networkx.github.com/download.html">Download </a> | </li> <li><a href="http://github.com/networkx">Developer 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