Mercurial > octave-nkf
view scripts/geometry/dsearchn.m @ 18479:85d31344fb23 stable rc-3-8-1-2
3.8.1 release candidate 2
* configure.ac (OCTAVE_VERSION): Bump to 3.8.1-rc2.
(OCTAVE_MINOR_VERSION): Bump to 1-rc2.
(OCTAVE_RELEASE_DATE): Set to 2014-02-14.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 17 Feb 2014 02:20:39 -0500 |
parents | d63878346099 |
children | 4197fc428c7d |
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## Copyright (C) 2007-2013 David Bateman ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {@var{idx} =} dsearchn (@var{x}, @var{tri}, @var{xi}) ## @deftypefnx {Function File} {@var{idx} =} dsearchn (@var{x}, @var{tri}, @var{xi}, @var{outval}) ## @deftypefnx {Function File} {@var{idx} =} dsearchn (@var{x}, @var{xi}) ## @deftypefnx {Function File} {[@var{idx}, @var{d}] =} dsearchn (@dots{}) ## Return the index @var{idx} or the closest point in @var{x} to the elements ## @var{xi}. If @var{outval} is supplied, then the values of @var{xi} that are ## not contained within one of the simplices @var{tri} are set to ## @var{outval}. Generally, @var{tri} is returned from @code{delaunayn ## (@var{x})}. ## @seealso{dsearch, tsearch} ## @end deftypefn function [idx, d] = dsearchn (x, tri, xi, outval) if (nargin < 2 || nargin > 4) print_usage (); endif if (nargin == 2) [idx, d] = __dsearchn__ (x, tri); else [idx, d] = __dsearchn__ (x, xi); if (nargin == 4) idx2 = isnan (tsearchn (x, tri, xi)); idx(idx2) = outval; d(idx2) = outval; endif endif endfunction %!shared x, tri %! x = [-1,-1;-1,1;1,-1]; %! tri = [1,2,3]; %!assert (dsearchn (x,tri,[1,1/3]), 3) %!assert (dsearchn (x,tri,[1,1/3],NaN), NaN) %!assert (dsearchn (x,tri,[1,1/3],NA), NA) %!assert (dsearchn (x,tri,[1/3,1]), 2) %!assert (dsearchn (x,tri,[1/3,1],NaN), NaN) %!assert (dsearchn (x,tri,[1/3,1],NA), NA)