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<li><a class="reference internal" href="#">nxutils</a><ul>
<li><a class="reference internal" href="#module-matplotlib.nxutils"><tt class="docutils literal"><span class="pre">matplotlib.nxutils</span></tt></a></li>
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<div class="section" id="nxutils">
<h1>nxutils<a class="headerlink" href="#nxutils" title="Permalink to this headline">¶</a></h1>
<div class="section" id="module-matplotlib.nxutils">
<span id="matplotlib-nxutils"></span><h2><a class="reference internal" href="#module-matplotlib.nxutils" title="matplotlib.nxutils"><tt class="xref py py-mod docutils literal"><span class="pre">matplotlib.nxutils</span></tt></a><a class="headerlink" href="#module-matplotlib.nxutils" title="Permalink to this headline">¶</a></h2>
<p>general purpose numerical utilities, eg for computational geometry, that are not available in <a class="reference external" href="http://numpy.scipy.org">numpy</a></p>
<dl class="function">
<dt id="matplotlib.nxutils.pnpoly">
<tt class="descclassname">matplotlib.nxutils.</tt><tt class="descname">pnpoly</tt><big>(</big><big>)</big><a class="headerlink" href="#matplotlib.nxutils.pnpoly" title="Permalink to this definition">¶</a></dt>
<dd><p>inside = pnpoly(x, y, xyverts)</p>
<p>Return 1 if x,y is inside the polygon, 0 otherwise.</p>
<dl class="docutils">
<dt><em>xyverts</em></dt>
<dd>a sequence of x,y vertices.</dd>
</dl>
<p>A point on the boundary may be treated as inside or outside.
See <a class="reference external" href="http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html">pnpoly</a></p>
</dd></dl>
<dl class="function">
<dt id="matplotlib.nxutils.points_inside_poly">
<tt class="descclassname">matplotlib.nxutils.</tt><tt class="descname">points_inside_poly</tt><big>(</big><big>)</big><a class="headerlink" href="#matplotlib.nxutils.points_inside_poly" title="Permalink to this definition">¶</a></dt>
<dd><p>mask = points_inside_poly(xypoints, xyverts)</p>
<p>Return a boolean ndarray, True for points inside the polygon.</p>
<dl class="docutils">
<dt><em>xypoints</em></dt>
<dd>a sequence of N x,y pairs.</dd>
<dt><em>xyverts</em></dt>
<dd>sequence of x,y vertices of the polygon.</dd>
<dt><em>mask</em></dt>
<dd>an ndarray of length N.</dd>
</dl>
<p>A point on the boundary may be treated as inside or outside.
See <a class="reference external" href="http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html">pnpoly</a></p>
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