Mercurial > octave
view libinterp/dldfcn/__voronoi__.cc @ 21200:fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
* builtins.h, Cell.cc, __contourc__.cc, __dispatch__.cc, __dsearchn__.cc,
__ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc,
balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc,
c-file-ptr-stream.cc, c-file-ptr-stream.h, cellfun.cc, colloc.cc,
comment-list.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc,
defaults.cc, defaults.in.h, defun-dld.h, defun.cc, defun.h, det.cc, dirfns.cc,
display.cc, dlmread.cc, dot.cc, dynamic-ld.cc, eig.cc, ellipj.cc, error.cc,
errwarn.cc, event-queue.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc,
find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc,
givens.cc, gl-render.cc, gl2ps-print.cc, graphics.cc, graphics.in.h, gripes.cc,
hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, jit-ir.cc,
jit-typeinfo.cc, jit-util.cc, jit-util.h, kron.cc, load-path.cc, load-save.cc,
lookup.cc, ls-ascii-helper.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc,
ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, ls-oct-text.h, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, luinc.cc, mappers.cc, matrix_type.cc, max.cc,
mex.h, mexproto.h, mgorth.cc, nproc.cc, oct-errno.in.cc, oct-fstrm.cc,
oct-hdf5-types.cc, oct-hdf5.h, oct-hist.cc, oct-iostrm.cc, oct-lvalue.cc,
oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc, oct-stream.cc, oct-strstrm.cc,
octave-link.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, procstream.cc,
profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc,
regexp.cc, schur.cc, sighandlers.cc, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc,
spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc,
sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, sysdep.h, time.cc, toplev.cc,
tril.cc, tsearch.cc, txt-eng-ft.cc, txt-eng.cc, typecast.cc, urlwrite.cc,
utils.cc, variables.cc, xdiv.cc, xnorm.cc, xpow.cc, zfstream.cc,
__delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc,
__init_fltk__.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc,
__voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc,
colamd.cc, convhulln.cc, dmperm.cc, fftw.cc, oct-qhull.h, qr.cc, symbfact.cc,
symrcm.cc, oct-conf.in.cc, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-scalar.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-mat.cc,
ov-bool-sparse.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-ch-mat.cc,
ov-class.cc, ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cs-list.cc,
ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-dld-fcn.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc,
ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-lazy-idx.cc,
ov-mex-fcn.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-perm.cc, ov-range.cc,
ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc,
ov-struct.cc, ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc,
ov-uint8.cc, ov-usr-fcn.cc, ov.cc, ovl.cc, octave.cc, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-double-conv.cc, op-fcdm-fcdm.cc,
op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc,
op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc,
op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc,
op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc,
op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc,
op-int-conv.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc,
op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc,
op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc,
op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc,
op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc,
op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, pt-arg-list.cc,
pt-array-list.cc, pt-assign.cc, pt-binop.cc, pt-bp.cc, pt-cbinop.cc,
pt-cell.cc, pt-check.cc, pt-classdef.cc, pt-cmd.cc, pt-colon.cc, pt-colon.h,
pt-const.cc, pt-decl.cc, pt-eval.cc, pt-except.cc, pt-exp.cc, pt-fcn-handle.cc,
pt-funcall.cc, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-loop.cc, pt-mat.cc,
pt-misc.cc, pt-pr-code.cc, pt-select.cc, pt-stmt.cc, pt-unop.cc, pt.cc,
token.cc, Array-jit.cc, Array-os.cc, Array-sym.cc, Array-tc.cc, version.cc:
Indent #ifdef blocks in libinterp.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 05 Feb 2016 16:29:08 -0800 |
parents | ba0a4b4f021d |
children | 40de9f8f23a6 |
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/* Copyright (C) 2000-2015 Kai Habel 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/>. */ /* 20. Augiust 2000 - Kai Habel: first release */ /* 2003-12-14 Rafael Laboissiere <rafael@laboissiere.net> Added optional second argument to pass options to the underlying qhull command */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <cstdio> #include <list> #include "oct-locbuf.h" #include "lo-ieee.h" #include "Cell.h" #include "defun-dld.h" #include "error.h" #include "errwarn.h" #include "ovl.h" #include "unwind-prot.h" #if defined (HAVE_QHULL) # include "oct-qhull.h" # if defined (NEED_QHULL_VERSION) char qh_version[] = "__voronoi__.oct 2007-07-24"; # endif #endif static void close_fcn (FILE *f) { gnulib::fclose (f); } 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; } DEFUN_DLD (__voronoi__, args, , "-*- texinfo -*-\n\ @deftypefn {} {@var{C}, @var{F} =} __voronoi__ (@var{caller}, @var{pts})\n\ @deftypefnx {} {@var{C}, @var{F} =} __voronoi__ (@var{caller}, @var{pts}, @var{options})\n\ @deftypefnx {} {@var{C}, @var{F}, @var{Inf_Pts} =} __voronoi__ (@dots{})\n\ Undocumented internal function.\n\ @end deftypefn") { #if defined (HAVE_QHULL) int nargin = args.length (); if (nargin < 2 || nargin > 3) print_usage (); std::string caller = args(0).xstring_value ("__voronoi__: CALLER must be a string"); octave_value_list retval; Matrix points = args(1).matrix_value (); const octave_idx_type dim = points.columns (); const octave_idx_type num_points = points.rows (); if (! octave_qhull_dims_ok (dim, num_points, "__voronoi__")) return ovl (0.0); points = points.transpose (); std::string options; if (dim <= 3) options = " Qbb"; else options = " Qbb Qx"; if (nargin == 3) { octave_value opt_arg = args(2); if (opt_arg.is_string ()) options = " " + opt_arg.string_value (); else if (opt_arg.is_empty ()) ; // Use default options. else if (opt_arg.is_cellstr ()) { options = ""; Array<std::string> tmp = opt_arg.cellstr_value (); for (octave_idx_type i = 0; i < tmp.numel (); i++) options += " " + tmp(i); } else error ("%s: OPTIONS must be a string, cell array of strings, or empty", caller.c_str ()); } boolT ismalloc = false; unwind_protect frame; // Replace the outfile pointer with stdout for debugging information. #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM) FILE *outfile = gnulib::fopen ("NUL", "w"); #else FILE *outfile = gnulib::fopen ("/dev/null", "w"); #endif FILE *errfile = stderr; if (! outfile) error ("__voronoi__: unable to create temporary file for output"); frame.add_fcn (close_fcn, outfile); // qh_new_qhull command and points arguments are not const... std::string cmd = "qhull v" + options; OCTAVE_LOCAL_BUFFER (char, cmd_str, cmd.length () + 1); strcpy (cmd_str, cmd.c_str ()); int exitcode = qh_new_qhull (dim, num_points, points.fortran_vec (), ismalloc, cmd_str, outfile, errfile); if (exitcode) error ("%s: qhull failed", caller.c_str ()); // Calling findgood_all provides the number of Voronoi vertices // (sets qh num_good). qh_findgood_all (qh facet_list); octave_idx_type num_voronoi_regions = qh num_vertices - qh_setsize (qh del_vertices); octave_idx_type num_voronoi_vertices = qh num_good; // Find the voronoi centers for all facets. qh_setvoronoi_all (); facetT *facet; vertexT *vertex; octave_idx_type k; // Find the number of Voronoi vertices for each Voronoi cell and // store them in NI so we can use them later to set the dimensions // of the RowVector objects used to collect them. FORALLfacets { facet->seen = false; } OCTAVE_LOCAL_BUFFER (octave_idx_type, ni, num_voronoi_regions); for (octave_idx_type i = 0; i < num_voronoi_regions; i++) ni[i] = 0; k = 0; FORALLvertices { if (qh hull_dim == 3) qh_order_vertexneighbors (vertex); bool infinity_seen = false; facetT *neighbor, **neighborp; FOREACHneighbor_ (vertex) { if (neighbor->upperdelaunay) { if (! infinity_seen) { infinity_seen = true; ni[k]++; } } else { neighbor->seen = true; ni[k]++; } } k++; } // If Qhull finds fewer regions than points, we will pad the end // of the at_inf and C arrays so that they always contain at least // as many elements as the given points array. // FIXME: is it possible (or does it make sense) for // num_voronoi_regions to ever be larger than num_points? octave_idx_type nr = (num_points > num_voronoi_regions ? num_points : num_voronoi_regions); boolMatrix at_inf (nr, 1, false); // The list of Voronoi vertices. The first element is always // Inf. Matrix F (num_voronoi_vertices+1, dim); for (octave_idx_type d = 0; d < dim; d++) F(0,d) = octave_Inf; // The cell array of vectors of indices into F that represent the // vertices of the Voronoi regions (cells). Cell C (nr, 1); // Now loop through the list of vertices again and store the // coordinates of the Voronoi vertices and the lists of indices // for the cells. FORALLfacets { facet->seen = false; } octave_idx_type i = 0; k = 0; FORALLvertices { if (qh hull_dim == 3) qh_order_vertexneighbors (vertex); bool infinity_seen = false; octave_idx_type idx = qh_pointid (vertex->point); octave_idx_type num_vertices = ni[k++]; // Qhull seems to sometimes produces regions with a single // vertex. Is that a bug? How can a region have just one // vertex? Let's skip it. if (num_vertices == 1) continue; RowVector facet_list (num_vertices); octave_idx_type m = 0; facetT *neighbor, **neighborp; FOREACHneighbor_(vertex) { if (neighbor->upperdelaunay) { if (! infinity_seen) { infinity_seen = true; facet_list(m++) = 1; at_inf(idx) = true; } } else { if (! neighbor->seen) { i++; for (octave_idx_type d = 0; d < dim; d++) F(i,d) = neighbor->center[d]; neighbor->seen = true; neighbor->visitid = i; } facet_list(m++) = neighbor->visitid + 1; } } C(idx) = facet_list; } retval = ovl (F, C, at_inf); // Free memory from Qhull qh_freeqhull (! qh_ALL); int curlong, totlong; qh_memfreeshort (&curlong, &totlong); if (curlong || totlong) warning ("%s: qhull did not free %d bytes of long memory (%d pieces)", caller.c_str (), totlong, curlong); return retval; #else std::string caller = (args.length () > 0 ? args(0).xstring_value ("__voronoi__: CALLER must be a string") : std::string ("__voronoi__")); err_disabled_feature (caller, "Qhull"); #endif } /* ## No test needed for internal helper function. %!assert (1) */