<!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>event_handling example code: pong_gtk.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/event_handling/pong_gtk.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 type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter 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="event-handling-example-code-pong-gtk-py"> <span id="event-handling-pong-gtk"></span><h1>event_handling example code: pong_gtk.py<a class="headerlink" href="#event-handling-example-code-pong-gtk-py" title="Permalink to this headline">ΒΆ</a></h1> <p>[<a class="reference external" href="pong_gtk.py">source code</a>]</p> <div class="highlight-python"><div class="highlight"><pre><span class="c">#!/usr/bin/env python</span> <span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">print_function</span> <span class="c"># For detailed comments on animation and the techniques used here, see</span> <span class="c"># the wiki entry</span> <span class="c"># http://www.scipy.org/wikis/topical_software/MatplotlibAnimation</span> <span class="kn">import</span> <span class="nn">time</span> <span class="kn">import</span> <span class="nn">gtk</span><span class="o">,</span> <span class="nn">gobject</span> <span class="kn">import</span> <span class="nn">matplotlib</span> <span class="n">matplotlib</span><span class="o">.</span><span class="n">use</span><span class="p">(</span><span class="s">'GTKAgg'</span><span class="p">)</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">pipong</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">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">)</span> <span class="n">canvas</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">figure</span><span class="o">.</span><span class="n">canvas</span> <span class="k">def</span> <span class="nf">start_anim</span><span class="p">(</span><span class="n">event</span><span class="p">):</span> <span class="c"># gobject.idle_add(animation.draw,animation)</span> <span class="n">gobject</span><span class="o">.</span><span class="n">timeout_add</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span><span class="n">animation</span><span class="o">.</span><span class="n">draw</span><span class="p">,</span><span class="n">animation</span><span class="p">)</span> <span class="n">canvas</span><span class="o">.</span><span class="n">mpl_disconnect</span><span class="p">(</span><span class="n">start_anim</span><span class="o">.</span><span class="n">cid</span><span class="p">)</span> <span class="n">animation</span> <span class="o">=</span> <span class="n">pipong</span><span class="o">.</span><span class="n">Game</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span> <span class="n">start_anim</span><span class="o">.</span><span class="n">cid</span> <span class="o">=</span> <span class="n">canvas</span><span class="o">.</span><span class="n">mpl_connect</span><span class="p">(</span><span class="s">'draw_event'</span><span class="p">,</span> <span class="n">start_anim</span><span class="p">)</span> <span class="n">tstart</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="n">plt</span><span class="o">.</span><span class="n">grid</span><span class="p">()</span> <span class="c"># to ensure proper background restore</span> <span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span> <span class="k">print</span><span class="p">(</span><span class="s">'FPS:'</span> <span class="p">,</span> <span class="n">animation</span><span class="o">.</span><span class="n">cnt</span><span class="o">/</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span><span class="o">-</span><span class="n">tstart</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 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><a 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