<html lang="en"> <head> <title>Geometry - GNU Octave</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="GNU Octave"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="prev" href="Interpolation.html#Interpolation" title="Interpolation"> <link rel="next" href="Signal-Processing.html#Signal-Processing" title="Signal Processing"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="Geometry"></a> <p> Next: <a rel="next" accesskey="n" href="Signal-Processing.html#Signal-Processing">Signal Processing</a>, Previous: <a rel="previous" accesskey="p" href="Interpolation.html#Interpolation">Interpolation</a>, Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a> <hr> </div> <h2 class="chapter">30 Geometry</h2> <p>Much of the geometry code in Octave is based on the Qhull library<a rel="footnote" href="#fn-1" name="fnd-1"><sup>1</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. <ul class="menu"> <li><a accesskey="1" href="Delaunay-Triangulation.html#Delaunay-Triangulation">Delaunay Triangulation</a> <li><a accesskey="2" href="Voronoi-Diagrams.html#Voronoi-Diagrams">Voronoi Diagrams</a> <li><a accesskey="3" href="Convex-Hull.html#Convex-Hull">Convex Hull</a> <li><a accesskey="4" href="Interpolation-on-Scattered-Data.html#Interpolation-on-Scattered-Data">Interpolation on Scattered Data</a> </ul> <div class="footnote"> <hr> <h4>Footnotes</h4><p class="footnote"><small>[<a name="fn-1" href="#fnd-1">1</a>]</small> 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):469–483, Dec 1996, <a href="http://www.qhull.org">http://www.qhull.org</a></p> <hr></div> </body></html>