Mercurial > octave
annotate libinterp/dldfcn/convhulln.cc @ 21301:40de9f8f23a6
Use '#include "config.h"' rather than <config.h>.
* mk-octave-config-h.sh, mk-opts.pl, Backend.cc, BaseControl.cc,
ButtonControl.cc, Canvas.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc,
EditControl.cc, Figure.cc, FigureWindow.cc, GLCanvas.cc, KeyMap.cc,
ListBoxControl.cc, Logger.cc, Menu.cc, MouseModeActionGroup.cc, Object.cc,
ObjectFactory.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc,
PushButtonControl.cc, PushTool.cc, QtHandlesUtils.cc, RadioButtonControl.cc,
SliderControl.cc, TextControl.cc, TextEdit.cc, ToggleButtonControl.cc,
ToggleTool.cc, ToolBar.cc, ToolBarButton.cc, __init_qt__.cc,
annotation-dialog.cc, gl-select.cc, module.mk, kpty.cpp, color-picker.cc,
dialog.cc, documentation-dock-widget.cc, files-dock-widget.cc,
find-files-dialog.cc, find-files-model.cc, history-dock-widget.cc,
file-editor-tab.cc, file-editor-tab.h, file-editor.cc, find-dialog.cc,
marker.cc, octave-qscintilla.cc, octave-txt-lexer.cc, main-window.cc,
octave-cmd.cc, octave-dock-widget.cc, octave-gui.cc, octave-interpreter.cc,
octave-qt-link.cc, parser.cc, webinfo.cc, resource-manager.cc,
settings-dialog.cc, shortcut-manager.cc, terminal-dock-widget.cc,
thread-manager.cc, welcome-wizard.cc, workspace-model.cc, workspace-view.cc,
build-env-features.sh, build-env.in.cc, 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, cdisplay.c, cellfun.cc, coct-hdf5-types.c,
colloc.cc, comment-list.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc,
debug.cc, defaults.cc, defun.cc, 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, ft-text-renderer.cc,
gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc,
gl-render.cc, gl2ps-print.cc, graphics.cc, gripes.cc, hash.cc, help.cc,
hess.cc, hex2num.cc, hook-fcn.cc, input.cc, inv.cc, jit-ir.cc, jit-typeinfo.cc,
jit-util.cc, 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-utils.cc, lsode.cc, lu.cc, luinc.cc,
mappers.cc, matrix_type.cc, max.cc, mex.cc, mgorth.cc, nproc.cc,
oct-errno.in.cc, oct-fstrm.cc, oct-hdf5-types.cc, oct-hist.cc, oct-iostrm.cc,
oct-lvalue.cc, oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc, oct-stream.cc,
oct-strstrm.cc, oct-tex-lexer.in.ll, oct-tex-parser.in.yy, 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, siglist.c, 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, text-renderer.cc, time.cc,
toplev.cc, tril.cc, tsearch.cc, txt-eng.cc, typecast.cc, urlwrite.cc, utils.cc,
variables.cc, xdiv.cc, xgl2ps.c, 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, qr.cc, symbfact.cc, symrcm.cc,
mkbuiltins, mkops, 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, lex.ll, oct-parse.in.yy,
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-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,
Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc,
Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc,
Array-voidp.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MArray-C.cc,
MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc,
MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MatrixType.cc, PermMatrix.cc,
Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.cc, boolMatrix.cc,
boolNDArray.cc, boolSparse.cc, chMatrix.cc, chNDArray.cc, dColVector.cc,
dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc,
dim-vector.cc, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc,
fCRowVector.cc, fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc,
fRowVector.cc, idx-vector.cc, int16NDArray.cc, int32NDArray.cc,
int64NDArray.cc, int8NDArray.cc, intNDArray.cc, uint16NDArray.cc,
uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, blaswrap.c, cquit.c,
f77-extern.cc, f77-fcn.c, lo-error.c, quit.cc, CollocWt.cc, DASPK.cc, DASRT.cc,
DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, aepbalance.cc, chol.cc,
eigs-base.cc, fEIG.cc, gepbalance.cc, hess.cc, lo-mappers.cc, lo-specfun.cc,
lu.cc, oct-convn.cc, oct-fftw.cc, oct-norm.cc, oct-rand.cc, oct-spparms.cc,
qr.cc, qrp.cc, randgamma.c, randmtzig.c, randpoisson.c, schur.cc,
sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, svd.cc,
mk-ops.awk, dir-ops.cc, file-ops.cc, file-stat.cc, lo-sysdep.cc, mach-info.cc,
oct-env.cc, oct-group.cc, oct-passwd.cc, oct-syscalls.cc, oct-time.cc,
oct-uname.cc, cmd-edit.cc, cmd-hist.cc, data-conv.cc, f2c-main.c,
glob-match.cc, kpse.cc, lo-array-errwarn.cc, lo-array-gripes.cc, lo-cutils.c,
lo-ieee.cc, lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc,
oct-inttypes.cc, oct-locbuf.cc, oct-mutex.cc, oct-rl-edit.c, oct-rl-hist.c,
oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc, sparse-sort.cc,
sparse-util.cc, str-vec.cc, unwind-prot.cc, url-transfer.cc,
display-available.c, main-cli.cc, main-gui.cc, main.in.cc, mkoctfile.in.cc,
octave-config.in.cc:
Use '#include "config.h"' rather than <config.h>.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 18 Feb 2016 13:34:50 -0800 |
parents | fcac5dbbf9ed |
children | ad0599a0acc6 |
rev | line source |
---|---|
6823 | 1 /* |
2 | |
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3 Copyright (C) 2000-2015 Kai Habel |
6823 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
6823 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
6823 | 20 |
21 */ | |
22 | |
23 /* | |
24 29. July 2000 - Kai Habel: first release | |
25 2002-04-22 Paul Kienzle | |
26 * Use warning(...) function rather than writing to cerr | |
27 2006-05-01 Tom Holroyd | |
28 * add support for consistent winding in all dimensions; output is | |
29 * guaranteed to be simplicial. | |
30 */ | |
31 | |
32 #ifdef HAVE_CONFIG_H | |
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33 # include "config.h" |
6823 | 34 #endif |
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35 |
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36 #include "oct-locbuf.h" |
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37 |
6823 | 38 #include "Cell.h" |
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39 #include "defun-dld.h" |
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40 #include "error.h" |
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41 #include "errwarn.h" |
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42 #include "ovl.h" |
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43 #include "parse.h" |
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44 #include "unwind-prot.h" |
6823 | 45 |
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46 #if defined (HAVE_QHULL) |
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47 # include "oct-qhull.h" |
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48 # if defined (NEED_QHULL_VERSION) |
6823 | 49 char qh_version[] = "convhulln.oct 2007-07-24"; |
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50 # endif |
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51 #endif |
6823 | 52 |
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53 static void |
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54 close_fcn (FILE *f) |
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55 { |
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56 gnulib::fclose (f); |
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57 } |
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58 |
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59 static bool |
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60 octave_qhull_dims_ok (octave_idx_type dim, octave_idx_type n, const char *who) |
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61 { |
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62 if (sizeof (octave_idx_type) > sizeof (int)) |
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63 { |
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64 int maxval = std::numeric_limits<int>::max (); |
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65 |
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66 if (dim > maxval || n > maxval) |
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67 error ("%s: dimension too large for Qhull", who); |
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68 } |
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69 |
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70 return true; |
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71 } |
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72 |
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73 DEFUN_DLD (convhulln, args, nargout, |
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74 "-*- texinfo -*-\n\ |
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75 @deftypefn {} {@var{h} =} convhulln (@var{pts})\n\ |
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76 @deftypefnx {} {@var{h} =} convhulln (@var{pts}, @var{options})\n\ |
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77 @deftypefnx {} {[@var{h}, @var{v}] =} convhulln (@dots{})\n\ |
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78 Compute the convex hull of the set of points @var{pts}.\n\ |
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79 \n\ |
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80 @var{pts} is a matrix of size [n, dim] containing n points in a space of\n\ |
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81 dimension dim.\n\ |
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82 \n\ |
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83 The hull @var{h} is an index vector into the set of points and specifies\n\ |
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84 which points form the enclosing hull.\n\ |
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85 \n\ |
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86 An optional second argument, which must be a string or cell array of strings,\n\ |
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87 contains options passed to the underlying qhull command.\n\ |
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88 See the documentation for the Qhull library for details\n\ |
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89 @url{http://www.qhull.org/html/qh-quick.htm#options}.\n\ |
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90 The default options depend on the dimension of the input:\n\ |
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91 \n\ |
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92 @itemize\n\ |
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93 @item 2D, 3D, 4D: @var{options} = @code{@{\"Qt\"@}}\n\ |
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94 \n\ |
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95 @item 5D and higher: @var{options} = @code{@{\"Qt\", \"Qx\"@}}\n\ |
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96 @end itemize\n\ |
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97 \n\ |
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98 If @var{options} is not present or @code{[]} then the default arguments are\n\ |
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99 used. Otherwise, @var{options} replaces the default argument list.\n\ |
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100 To append user options to the defaults it is necessary to repeat the\n\ |
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101 default arguments in @var{options}. Use a null string to pass no arguments.\n\ |
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102 \n\ |
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103 If the second output @var{v} is requested the volume of the enclosing\n\ |
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104 convex hull is calculated.\n\n\ |
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105 @seealso{convhull, delaunayn, voronoin}\n\ |
6823 | 106 @end deftypefn") |
107 { | |
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108 #if defined (HAVE_QHULL) |
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111 |
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112 if (nargin < 1 || nargin > 2) |
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113 print_usage (); |
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115 octave_value_list retval; |
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116 |
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117 Matrix points (args(0).matrix_value ()); |
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118 const octave_idx_type dim = points.columns (); |
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119 const octave_idx_type num_points = points.rows (); |
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120 |
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121 if (! octave_qhull_dims_ok (dim, num_points, "convhulln")) |
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122 return retval; |
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123 |
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124 points = points.transpose (); |
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125 |
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126 std::string options; |
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127 |
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128 if (dim <= 4) |
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129 options = " Qt"; |
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130 else |
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131 options = " Qt Qx"; |
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132 |
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133 if (nargin == 2) |
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135 if (args(1).is_string ()) |
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136 options = " " + args(1).string_value (); |
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137 else if (args(1).is_empty ()) |
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138 ; // Use default options. |
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139 else if (args(1).is_cellstr ()) |
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140 { |
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141 options = ""; |
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142 |
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143 Array<std::string> tmp = args(1).cellstr_value (); |
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145 for (octave_idx_type i = 0; i < tmp.numel (); i++) |
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146 options += " " + tmp(i); |
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147 } |
6823 | 148 else |
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149 error ("convhulln: OPTIONS must be a string, cell array of strings, or empty"); |
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150 } |
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152 boolT ismalloc = false; |
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153 |
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154 unwind_protect frame; |
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155 |
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156 // Replace the outfile pointer with stdout for debugging information. |
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157 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM) |
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158 FILE *outfile = gnulib::fopen ("NUL", "w"); |
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159 #else |
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160 FILE *outfile = gnulib::fopen ("/dev/null", "w"); |
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161 #endif |
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162 FILE *errfile = stderr; |
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163 |
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164 if (! outfile) |
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165 error ("convhulln: unable to create temporary file for output"); |
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166 |
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167 frame.add_fcn (close_fcn, outfile); |
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168 |
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169 // qh_new_qhull command and points arguments are not const... |
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170 |
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171 std::string cmd = "qhull" + options; |
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172 |
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173 OCTAVE_LOCAL_BUFFER (char, cmd_str, cmd.length () + 1); |
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174 |
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175 strcpy (cmd_str, cmd.c_str ()); |
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176 |
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177 int exitcode = qh_new_qhull (dim, num_points, points.fortran_vec (), |
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178 ismalloc, cmd_str, outfile, errfile); |
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179 if (exitcode) |
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180 error ("convhulln: qhull failed"); |
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181 |
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182 bool nonsimp_seen = false; |
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183 |
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184 octave_idx_type nf = qh num_facets; |
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185 |
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186 Matrix idx (nf, dim + 1); |
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188 facetT *facet; |
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190 octave_idx_type i = 0; |
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191 |
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192 FORALLfacets |
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193 { |
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194 octave_idx_type j = 0; |
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195 |
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196 if (! (nonsimp_seen || facet->simplicial || qh hull_dim == 2)) |
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197 { |
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198 nonsimp_seen = true; |
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199 |
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200 if (cmd.find ("QJ") != std::string::npos) |
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201 // Should never happen with QJ. |
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202 error ("convhulln: qhull failed: option 'QJ' returned non-simplicial facet"); |
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203 } |
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204 |
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205 if (dim == 3) |
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206 { |
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207 setT *vertices = qh_facet3vertex (facet); |
6823 | 208 |
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209 vertexT *vertex, **vertexp; |
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210 |
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211 FOREACHvertex_ (vertices) |
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212 idx(i, j++) = 1 + qh_pointid(vertex->point); |
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213 |
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214 qh_settempfree (&vertices); |
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215 } |
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216 else |
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217 { |
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218 if (facet->toporient ^ qh_ORIENTclock) |
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219 { |
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220 vertexT *vertex, **vertexp; |
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221 |
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222 FOREACHvertex_ (facet->vertices) |
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223 idx(i, j++) = 1 + qh_pointid(vertex->point); |
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224 } |
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225 else |
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226 { |
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227 vertexT *vertex, **vertexp; |
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228 |
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229 FOREACHvertexreverse12_ (facet->vertices) |
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230 idx(i, j++) = 1 + qh_pointid(vertex->point); |
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231 } |
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232 } |
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233 if (j < dim) |
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234 warning ("convhulln: facet %d only has %d vertices", i, j); |
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235 |
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236 i++; |
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237 } |
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238 |
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239 // Remove extra dimension if all facets were simplicial. |
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240 |
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241 if (! nonsimp_seen) |
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242 idx.resize (nf, dim, 0.0); |
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243 |
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244 if (nargout == 2) |
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245 { |
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246 // Calculate volume of convex hull, taken from qhull src/geom2.c. |
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247 |
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248 realT area; |
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249 realT dist; |
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250 |
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251 FORALLfacets |
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252 { |
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253 if (! facet->normal) |
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254 continue; |
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255 |
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256 if (facet->upperdelaunay && qh ATinfinity) |
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257 continue; |
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258 |
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259 facet->f.area = area = qh_facetarea (facet); |
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260 facet->isarea = True; |
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261 |
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262 if (qh DELAUNAY) |
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263 { |
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264 if (facet->upperdelaunay == qh UPPERdelaunay) |
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265 qh totarea += area; |
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266 } |
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267 else |
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268 { |
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269 qh totarea += area; |
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270 qh_distplane (qh interior_point, facet, &dist); |
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271 qh totvol += -dist * area/ qh hull_dim; |
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272 } |
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273 } |
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274 |
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275 retval(1) = octave_value (qh totvol); |
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276 } |
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277 |
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278 retval(0) = idx; |
6959 | 279 |
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280 // Free memory from Qhull |
6959 | 281 qh_freeqhull (! qh_ALL); |
282 | |
6823 | 283 int curlong, totlong; |
284 qh_memfreeshort (&curlong, &totlong); | |
285 | |
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286 if (curlong || totlong) |
6959 | 287 warning ("convhulln: did not free %d bytes of long memory (%d pieces)", |
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288 totlong, curlong); |
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289 |
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290 return retval; |
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291 |
6823 | 292 #else |
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293 err_disabled_feature ("convhulln", "Qhull"); |
6823 | 294 #endif |
295 } | |
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296 |
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297 /* |
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298 %!testif HAVE_QHULL |
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299 %! cube = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1]; |
14310 | 300 %! [h, v] = convhulln (cube, "Qt"); |
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301 %! assert (size (h), [12 3]); |
14310 | 302 %! h = sortrows (sort (h, 2), [1:3]); |
303 %! assert (h, [1 2 4; 1 2 6; 1 4 8; 1 5 6; 1 5 8; 2 3 4; 2 3 7; 2 6 7; 3 4 7; 4 7 8; 5 6 7; 5 7 8]); | |
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304 %! assert (v, 1, 10*eps); |
14310 | 305 %! [h2, v2] = convhulln (cube); % Test defaut option = "Qt" |
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306 %! assert (size (h2), size (h)); |
14310 | 307 %! h2 = sortrows (sort (h2, 2), [1:3]); |
308 %! assert (h2, h); | |
309 %! assert (v2, v, 10*eps); | |
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310 |
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311 %!testif HAVE_QHULL |
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312 %! cube = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1]; |
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313 %! [h, v] = convhulln (cube, "QJ"); |
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314 %! assert (size (h), [12 3]); |
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315 %! assert (sortrows (sort (h, 2), [1:3]), [1 2 4; 1 2 5; 1 4 5; 2 3 4; 2 3 6; 2 5 6; 3 4 8; 3 6 7; 3 7 8; 4 5 8; 5 6 8; 6 7 8]); |
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316 %! assert (v, 1.0, 1e6*eps); |
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317 |
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318 %!testif HAVE_QHULL |
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319 %! tetrahedron = [1 1 1;-1 -1 1;-1 1 -1;1 -1 -1]; |
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320 %! [h, v] = convhulln (tetrahedron); |
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321 %! h = sortrows (sort (h, 2), [1 2 3]); |
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322 %! assert (h, [1 2 3;1 2 4; 1 3 4; 2 3 4]); |
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323 %! assert (v, 8/3, 10*eps); |
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324 |
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325 %!testif HAVE_QHULL |
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326 %! triangle=[0 0; 1 1; 1 0; 1 2]; |
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327 %! h = convhulln (triangle); |
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328 %! assert (size (h), [3 2]); |
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329 */ |