<!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>pylab_examples example code: dolphin.py — Matplotlib 1.2.0 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: '1.2.0', 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 1.2.0 documentation" href="../../_static/opensearch.xml"/> <link rel="top" title="Matplotlib 1.2.0 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/pylab_examples/dolphin.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" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input 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<span class="nn">plt</span> <span class="kn">from</span> <span class="nn">matplotlib.patches</span> <span class="kn">import</span> <span class="n">Circle</span><span class="p">,</span> <span class="n">PathPatch</span> <span class="kn">from</span> <span class="nn">matplotlib.path</span> <span class="kn">import</span> <span class="n">Path</span> <span class="kn">from</span> <span class="nn">matplotlib.transforms</span> <span class="kn">import</span> <span class="n">Affine2D</span> <span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span> <span class="n">r</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="mi">50</span><span class="p">)</span> <span class="n">t</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="mi">50</span><span class="p">)</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="mf">2.0</span> <span class="n">x</span> <span class="o">=</span> <span class="n">r</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">t</span><span class="p">)</span> <span class="n">y</span> <span class="o">=</span> <span class="n">r</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">t</span><span class="p">)</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="mi">6</span><span class="p">))</span> <span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">)</span> <span class="n">circle</span> <span class="o">=</span> <span class="n">Circle</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">facecolor</span><span class="o">=</span><span class="s">'none'</span><span class="p">,</span> <span class="n">edgecolor</span><span class="o">=</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mf">0.8</span><span class="p">,</span><span class="mf">0.8</span><span class="p">),</span> <span class="n">linewidth</span><span class="o">=</span><span class="mi">3</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">ax</span><span class="o">.</span><span class="n">add_patch</span><span class="p">(</span><span class="n">circle</span><span class="p">)</span> <span class="n">im</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">random</span><span class="p">((</span><span class="mi">100</span><span class="p">,</span> <span class="mi">100</span><span class="p">)),</span> <span class="n">origin</span><span class="o">=</span><span class="s">'lower'</span><span class="p">,</span> <span class="n">cmap</span><span class="o">=</span><span class="n">cm</span><span class="o">.</span><span class="n">winter</span><span class="p">,</span> <span class="n">interpolation</span><span class="o">=</span><span class="s">'spline36'</span><span class="p">,</span> <span class="n">extent</span><span class="o">=</span><span class="p">([</span><span class="o">-</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="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">]))</span> <span class="n">im</span><span class="o">.</span><span class="n">set_clip_path</span><span class="p">(</span><span class="n">circle</span><span class="p">)</span> <span class="n">plt</span><span class="o">.</span><span class="n">plot</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="s">'o'</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="p">(</span><span class="mf">0.9</span><span class="p">,</span> <span class="mf">0.9</span><span class="p">,</span> <span class="mf">1.0</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"># Dolphin from OpenClipart library by Andy Fitzsimon</span> <span class="c"># <cc:License rdf:about="http://web.resource.org/cc/PublicDomain"></span> <span class="c"># <cc:permits rdf:resource="http://web.resource.org/cc/Reproduction"/></span> <span class="c"># <cc:permits rdf:resource="http://web.resource.org/cc/Distribution"/></span> <span class="c"># <cc:permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/></span> <span class="c"># </cc:License></span> <span class="n">dolphin</span> <span class="o">=</span> <span class="s">"""</span> <span class="s">M -0.59739425,160.18173 C -0.62740401,160.18885 -0.57867129,160.11183</span> <span class="s">-0.57867129,160.11183 C -0.57867129,160.11183 -0.5438361,159.89315</span> <span class="s">-0.39514638,159.81496 C -0.24645668,159.73678 -0.18316813,159.71981</span> <span class="s">-0.18316813,159.71981 C -0.18316813,159.71981 -0.10322971,159.58124</span> <span class="s">-0.057804323,159.58725 C -0.029723983,159.58913 -0.061841603,159.60356</span> <span class="s">-0.071265813,159.62815 C -0.080250183,159.65325 -0.082918513,159.70554</span> <span class="s">-0.061841203,159.71248 C -0.040763903,159.7194 -0.0066711426,159.71091</span> <span class="s">0.077336307,159.73612 C 0.16879567,159.76377 0.28380306,159.86448</span> <span class="s">0.31516668,159.91533 C 0.3465303,159.96618 0.5011127,160.1771</span> <span class="s">0.5011127,160.1771 C 0.63668998,160.19238 0.67763022,160.31259</span> <span class="s">0.66556395,160.32668 C 0.65339985,160.34212 0.66350443,160.33642</span> <span class="s">0.64907098,160.33088 C 0.63463742,160.32533 0.61309688,160.297</span> <span class="s">0.5789627,160.29339 C 0.54348657,160.28968 0.52329693,160.27674</span> <span class="s">0.50728856,160.27737 C 0.49060916,160.27795 0.48965803,160.31565</span> <span class="s">0.46114204,160.33673 C 0.43329696,160.35786 0.4570711,160.39871</span> <span class="s">0.43309565,160.40685 C 0.4105108,160.41442 0.39416631,160.33027</span> <span class="s">0.3954995,160.2935 C 0.39683269,160.25672 0.43807996,160.21522</span> <span class="s">0.44567915,160.19734 C 0.45327833,160.17946 0.27946869,159.9424</span> <span class="s">-0.061852613,159.99845 C -0.083965233,160.0427 -0.26176109,160.06683</span> <span class="s">-0.26176109,160.06683 C -0.30127962,160.07028 -0.21167141,160.09731</span> <span class="s">-0.24649368,160.1011 C -0.32642366,160.11569 -0.34521187,160.06895</span> <span class="s">-0.40622293,160.0819 C -0.467234,160.09485 -0.56738444,160.17461</span> <span class="s">-0.59739425,160.18173</span> <span class="s">"""</span> <span class="n">vertices</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">codes</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">parts</span> <span class="o">=</span> <span class="n">dolphin</span><span class="o">.</span><span class="n">split</span><span class="p">()</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span> <span class="n">code_map</span> <span class="o">=</span> <span class="p">{</span> <span class="s">'M'</span><span class="p">:</span> <span class="p">(</span><span class="n">Path</span><span class="o">.</span><span class="n">MOVETO</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="s">'C'</span><span class="p">:</span> <span class="p">(</span><span class="n">Path</span><span class="o">.</span><span class="n">CURVE4</span><span class="p">,</span> <span class="mi">3</span><span class="p">),</span> <span class="s">'L'</span><span class="p">:</span> <span class="p">(</span><span class="n">Path</span><span class="o">.</span><span class="n">LINETO</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> <span class="p">}</span> <span class="k">while</span> <span class="n">i</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">parts</span><span class="p">):</span> <span class="n">code</span> <span class="o">=</span> <span class="n">parts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="n">path_code</span><span class="p">,</span> <span class="n">npoints</span> <span class="o">=</span> <span class="n">code_map</span><span class="p">[</span><span class="n">code</span><span class="p">]</span> <span class="n">codes</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="n">path_code</span><span class="p">]</span> <span class="o">*</span> <span class="n">npoints</span><span class="p">)</span> <span class="n">vertices</span><span class="o">.</span><span class="n">extend</span><span class="p">([[</span><span class="nb">float</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">y</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">','</span><span class="p">)]</span> <span class="k">for</span> <span class="n">y</span> <span class="ow">in</span> <span class="n">parts</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">i</span><span class="o">+</span><span class="n">npoints</span><span class="o">+</span><span class="mi">1</span><span class="p">]])</span> <span class="n">i</span> <span class="o">+=</span> <span class="n">npoints</span> <span class="o">+</span> <span class="mi">1</span> <span class="n">vertices</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="n">vertices</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">float</span><span class="p">)</span> <span class="n">vertices</span><span class="p">[:,</span><span class="mi">1</span><span class="p">]</span> <span class="o">-=</span> <span class="mi">160</span> <span class="n">dolphin_path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">vertices</span><span class="p">,</span> <span class="n">codes</span><span class="p">)</span> <span class="n">dolphin_patch</span> <span class="o">=</span> <span class="n">PathPatch</span><span class="p">(</span><span class="n">dolphin_path</span><span class="p">,</span> <span class="n">facecolor</span><span class="o">=</span><span class="p">(</span><span class="mf">0.6</span><span class="p">,</span> <span class="mf">0.6</span><span class="p">,</span> <span class="mf">0.6</span><span class="p">),</span> <span class="n">edgecolor</span><span class="o">=</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">))</span> <span class="n">ax</span><span class="o">.</span><span class="n">add_patch</span><span class="p">(</span><span class="n">dolphin_patch</span><span class="p">)</span> <span class="n">vertices</span> <span class="o">=</span> <span class="n">Affine2D</span><span class="p">()</span><span class="o">.</span><span class="n">rotate_deg</span><span class="p">(</span><span class="mi">60</span><span class="p">)</span><span class="o">.</span><span class="n">transform</span><span class="p">(</span><span class="n">vertices</span><span class="p">)</span> <span class="n">dolphin_path2</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">vertices</span><span class="p">,</span> <span class="n">codes</span><span class="p">)</span> <span class="n">dolphin_patch2</span> <span class="o">=</span> <span class="n">PathPatch</span><span class="p">(</span><span class="n">dolphin_path2</span><span class="p">,</span> <span class="n">facecolor</span><span class="o">=</span><span class="p">(</span><span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">),</span> <span class="n">edgecolor</span><span class="o">=</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">))</span> <span class="n">ax</span><span class="o">.</span><span class="n">add_patch</span><span class="p">(</span><span class="n">dolphin_patch2</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 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