Mercurial > octave
view libinterp/dldfcn/__delaunayn__.cc @ 31210:9ad55d2e1bbf stable
Make sure we don't pass short 8.3 path to latex on Windows (bug #62779).
* latex-text-renderer.cc (latex_renderer::write_tex_file): On Windows, use
canonicalized path of temporary directory.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Sun, 28 Aug 2022 22:44:49 +0200 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2000-2022 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/>. // //////////////////////////////////////////////////////////////////////// /* 16. July 2000 - Kai Habel: first release 25. September 2002 - Changes by Rafael Laboissiere <rafael@laboissiere.net> * Added Qbb option to normalize the input and avoid crashes in Octave. * delaunayn accepts now a second (optional) argument that must be a string containing extra options to the qhull command. * Fixed doc string. The dimension of the result matrix is [m, dim+1], and not [n, dim-1]. 6. June 2006: Changes by Alexander Barth <abarth@marine.usf.edu> * triangulate non-simplicial facets * allow options to be specified as cell array of strings * change the default options (for compatibility with matlab) */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cstdio> #include <limits> #include <string> #include "Array.h" #include "dMatrix.h" #include "dRowVector.h" #include "oct-locbuf.h" #include "unwind-prot.h" #include "defun-dld.h" #include "error.h" #include "errwarn.h" #include "ovl.h" #if defined (HAVE_QHULL) # include "oct-qhull.h" # if defined (NEED_QHULL_R_VERSION) char qh_version[] = "__delaunayn__.oct 2007-08-21"; # endif #endif OCTAVE_NAMESPACE_BEGIN #if defined (HAVE_QHULL) static void free_qhull_memory (qhT *qh) { qh_freeqhull (qh, ! qh_ALL); int curlong, totlong; qh_memfreeshort (qh, &curlong, &totlong); if (curlong || totlong) warning ("__delaunayn__: did not free %d bytes of long memory (%d pieces)", totlong, curlong); } static bool octave_qhull_dims_ok (octave_idx_type dim, octave_idx_type n, const char *who) { if (sizeof (octave_idx_type) > sizeof (int)) { int maxval = std::numeric_limits<int>::max (); if (dim > maxval || n > maxval) error ("%s: dimension too large for Qhull", who); } return true; } #endif DEFUN_DLD (__delaunayn__, args, , doc: /* -*- texinfo -*- @deftypefn {} {@var{T} =} __delaunayn__ (@var{pts}) @deftypefnx {} {@var{T} =} __delaunayn__ (@var{pts}, @var{options}) Undocumented internal function. @end deftypefn */) { #if defined (HAVE_QHULL) int nargin = args.length (); if (nargin < 1 || nargin > 2) print_usage (); octave_value_list retval; retval(0) = 0.0; Matrix p (args(0).matrix_value ()); const octave_idx_type dim = p.columns (); const octave_idx_type n = p.rows (); if (! octave_qhull_dims_ok (dim, n, "__delaynayn__")) return retval; // Default options std::string options; if (dim <= 3) options = "Qt Qbb Qc"; else options = "Qt Qbb Qc Qx"; if (nargin == 2) { if (args(1).is_string ()) options = args(1).string_value (); else if (args(1).isempty ()) ; // Use default options else if (args(1).iscellstr ()) { options = ""; Array<std::string> tmp = args(1).cellstr_value (); for (octave_idx_type i = 0; i < tmp.numel (); i++) options += tmp(i) + ' '; } else error ("__delaunayn__: OPTIONS argument must be a string, cell array of strings, or empty"); } if (n > dim + 1) { p = p.transpose (); double *pt_array = p.fortran_vec (); boolT ismalloc = false; std::string cmd = "qhull d " + options; // Set the outfile pointer to stdout for status information. FILE *outfile = nullptr; // Set the errfile pointer to stderr for errors and summary information. // Note: pointer cannot be NULL to disable reporting, unlike outfile. #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM) FILE *errfile = std::fopen ("NUL", "w"); #else FILE *errfile = std::fopen ("/dev/null", "w"); #endif if (! errfile) error ("__delaunayn__: unable to redirect Qhull errors to /dev/null"); unwind_action close_errfile ([=] () { std::fclose (errfile); }); qhT context = { }; qhT *qh = &context; int exitcode = qh_new_qhull (qh, dim, n, pt_array, ismalloc, &cmd[0], outfile, errfile); unwind_action free_memory ([qh] () { free_qhull_memory (qh); }); if (exitcode) error ("__delaunayn__: qhull failed"); // triangulate non-simplicial facets qh_triangulate (qh); facetT *facet; vertexT *vertex, **vertexp; octave_idx_type nf = 0; octave_idx_type i = 0; FORALLfacets { if (! facet->upperdelaunay) nf++; // Double check. Non-simplicial facets will cause segfault below if (! facet->simplicial) error ("__delaunayn__: Qhull returned non-simplicial facets -- try delaunayn with different options"); } Matrix simpl (nf, dim+1); FORALLfacets { if (! facet->upperdelaunay) { octave_idx_type j = 0; FOREACHvertex_ (facet->vertices) { simpl(i, j++) = 1 + qh_pointid(qh, vertex->point); } i++; } } retval(0) = simpl; } else if (n == dim + 1) { // FIXME: One should check if nx points span a simplex. // I will look at this later. RowVector vec (n); for (octave_idx_type i = 0; i < n; i++) vec(i) = i + 1.0; retval(0) = vec; } return retval; #else octave_unused_parameter (args); err_disabled_feature ("__delaunayn__", "Qhull"); #endif } /* ## No test needed for internal helper function. %!assert (1) */ OCTAVE_NAMESPACE_END