Mercurial > octave
view scripts/general/pagetranspose.m @ 31248:8b75954a4670
delaunayn: adjust node ordering for positive outward normal vectors (bug #53397)
* delaunayn.m: Check sign of simplex volume, flip node order for negative
volumes to ensure positive (outward-pointing) normal vectors. Add BISTs to
check for positive volumes.
* etc/News.8.md: Append function improvement note to delaunayn change
paragraph under General Improvements.
author | Nicholas R. Jankowski <jankowski.nicholas@gmail.com> |
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date | Thu, 29 Sep 2022 23:09:05 -0400 |
parents | 7c5cb8f8a21e |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{B} =} pagetranspose (@var{A}) ## Return the page-wise transpose of the N-dimensional array @var{A}. ## ## This is equivalent to @tcode{@var{A}(:,:, @var{k}).@:'} for each page ## @var{k}. ## ## @seealso{pagectranspose, transpose, permute} ## @end deftypefn function B = pagetranspose (A) if (nargin != 1) print_usage (); endif B = permute (A, [2, 1, 3:ndims(A)]); endfunction %!test %! A = reshape (1:8, [2, 2, 2]); %! B = pagetranspose (A); %! assert (B, cat (3, [1,2;3,4], [5,6;7,8])); %!test %! A = reshape ((1:8)*i, [2, 2, 2]); %! B = pagetranspose (A); %! assert (B, i * cat (3, [1,2;3,4], [5,6;7,8])); ## Test input validation %!error <Invalid call> pagetranspose ()