<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>mplot3d example code: polys3d_demo.py — Matplotlib v1.1.1 documentation</title> <link rel="stylesheet" href="../../_static/mpl.css" type="text/css" /> <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../', VERSION: '1.1.1', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Matplotlib v1.1.1 documentation" href="../../_static/opensearch.xml"/> <link rel="top" title="Matplotlib v1.1.1 documentation" href="../../index.html" /> </head> <body> <!-- Piwik --> <script type="text/javascript"> if ("matplotlib.sourceforge.net" == document.location.hostname || "matplotlib.sf.net" == document.location.hostname) { var pkBaseURL = (("https:" == document.location.protocol) ? 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<h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li><a href="../../index.html">home</a>| </li> <li><a href="../../search.html">search</a>| </li> <li><a href="../index.html">examples</a>| </li> <li><a href="../../gallery.html">gallery</a>| </li> <li><a href="../../contents.html">docs</a> »</li> </ul> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../../_sources/examples/mplot3d/polys3d_demo.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input 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class="figure"> <img alt="../../_images/polys3d_demo.png" src="../../_images/polys3d_demo.png" /> </div> <div class="highlight-python"><div class="highlight"><pre><span class="kn">from</span> <span class="nn">mpl_toolkits.mplot3d</span> <span class="kn">import</span> <span class="n">Axes3D</span> <span class="kn">from</span> <span class="nn">matplotlib.collections</span> <span class="kn">import</span> <span class="n">PolyCollection</span> <span class="kn">from</span> <span class="nn">matplotlib.colors</span> <span class="kn">import</span> <span class="n">colorConverter</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">numpy</span> <span class="kn">as</span> <span class="nn">np</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">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">gca</span><span class="p">(</span><span class="n">projection</span><span class="o">=</span><span class="s">'3d'</span><span class="p">)</span> <span class="n">cc</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">arg</span><span class="p">:</span> <span class="n">colorConverter</span><span class="o">.</span><span class="n">to_rgba</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.6</span><span class="p">)</span> <span class="n">xs</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="mi">0</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mf">0.4</span><span class="p">)</span> <span class="n">verts</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">zs</span> <span class="o">=</span> <span class="p">[</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">2.0</span><span class="p">,</span> <span class="mf">3.0</span><span class="p">]</span> <span class="k">for</span> <span class="n">z</span> <span class="ow">in</span> <span class="n">zs</span><span class="p">:</span> <span class="n">ys</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">rand</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">xs</span><span class="p">))</span> <span class="n">ys</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">ys</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span> <span class="n">verts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">zip</span><span class="p">(</span><span class="n">xs</span><span class="p">,</span> <span class="n">ys</span><span class="p">))</span> <span class="n">poly</span> <span class="o">=</span> <span class="n">PolyCollection</span><span class="p">(</span><span class="n">verts</span><span class="p">,</span> <span class="n">facecolors</span> <span class="o">=</span> <span class="p">[</span><span class="n">cc</span><span class="p">(</span><span class="s">'r'</span><span class="p">),</span> <span class="n">cc</span><span class="p">(</span><span class="s">'g'</span><span class="p">),</span> <span class="n">cc</span><span class="p">(</span><span class="s">'b'</span><span class="p">),</span> <span class="n">cc</span><span class="p">(</span><span class="s">'y'</span><span class="p">)])</span> <span class="n">poly</span><span class="o">.</span><span class="n">set_alpha</span><span class="p">(</span><span class="mf">0.7</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">add_collection3d</span><span class="p">(</span><span class="n">poly</span><span class="p">,</span> <span class="n">zs</span><span class="o">=</span><span class="n">zs</span><span class="p">,</span> <span class="n">zdir</span><span class="o">=</span><span class="s">'y'</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_xlabel</span><span class="p">(</span><span class="s">'X'</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_xlim3d</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_ylabel</span><span class="p">(</span><span class="s">'Y'</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_ylim3d</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">4</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_zlabel</span><span class="p">(</span><span class="s">'Z'</span><span class="p">)</span> <span class="n">ax</span><span class="o">.</span><span class="n">set_zlim3d</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">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> </div> </div> </div> </div> <div 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