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Next: <a href="Signal-Processing.html#Signal-Processing" accesskey="n" rel="next">Signal Processing</a>, Previous: <a href="Interpolation.html#Interpolation" accesskey="p" rel="prev">Interpolation</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Geometry-1"></a>
<h2 class="chapter">30 Geometry</h2>

<p>Much of the geometry code in Octave is based on the Qhull 
library<a name="DOCF12" href="#FOOT12"><sup>12</sup></a>.  
Some of the documentation for Qhull, particularly for the options that 
can be passed to <code>delaunay</code>, <code>voronoi</code> and <code>convhull</code>, 
etc., is relevant to Octave users.
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<tr><td align="left" valign="top">&bull; <a href="Voronoi-Diagrams.html#Voronoi-Diagrams" accesskey="2">Voronoi Diagrams</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
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<tr><td align="left" valign="top">&bull; <a href="Convex-Hull.html#Convex-Hull" accesskey="3">Convex Hull</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
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<tr><td align="left" valign="top">&bull; <a href="Interpolation-on-Scattered-Data.html#Interpolation-on-Scattered-Data" accesskey="4">Interpolation on Scattered Data</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
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<h4 class="footnotes-heading">Footnotes</h4>

<h3><a name="FOOT12" href="#DOCF12">(12)</a></h3>
<p>Barber, C.B., Dobkin, D.P., and Huhdanpaa, H.T., 
<cite>The Quickhull Algorithm for Convex Hulls</cite>, ACM Trans. on Mathematical 
Software, 22(4):469&ndash;483, Dec 1996, <a href="http://www.qhull.org">http://www.qhull.org</a></p>
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