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1 ## Copyright (C) 2000, 2007, 2009 Kai Habel |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 3 of the License, or (at |
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8 ## your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <http://www.gnu.org/licenses/>. |
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18 |
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {[@var{C}, @var{F}] =} voronoin (@var{pts}) |
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21 ## @deftypefnx {Function File} {[@var{C}, @var{F}] =} voronoin (@var{pts}, @var{options}) |
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22 ## computes n- dimensional voronoi facets. The input matrix @var{pts} |
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23 ## of size [n, dim] contains n points of dimension dim. |
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24 ## @var{C} contains the points of the voronoi facets. The list @var{F} |
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25 ## contains for each facet the indices of the voronoi points. |
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26 ## |
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27 ## A second optional argument, which must be a string, contains extra options |
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28 ## passed to the underlying qhull command. See the documentation for the |
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29 ## Qhull library for details. |
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30 ## @seealso{voronoin, delaunay, convhull} |
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31 ## @end deftypefn |
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32 |
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33 ## Author: Kai Habel <kai.habel@gmx.de> |
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34 ## First Release: 20/08/2000 |
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35 |
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36 ## 2003-12-14 Rafael Laboissiere <rafael@laboissiere.net> |
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37 ## Added optional second argument to pass options to the underlying |
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38 ## qhull command |
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39 |
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40 function [C, F] = voronoin (pts, opt) |
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41 |
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42 if (nargin != 1 && nargin != 2) |
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43 print_usage (); |
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44 endif |
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45 |
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46 [np, dims] = size (pts); |
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47 if (np > dims) |
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48 if (nargin == 1) |
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49 [C, F, infi] = __voronoi__ (pts); |
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50 elseif ischar(opt) |
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51 [C, F, infi] = __voronoi__ (pts, opt); |
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52 else |
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53 error ("voronoin: second argument must be a string"); |
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54 endif |
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55 |
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56 else |
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57 error ("voronoin: number of points must be greater than their dimension"); |
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58 endif |
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59 endfunction |
