Mercurial > octave
annotate libinterp/dldfcn/convhulln.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 |
rev | line source |
---|---|
6823 | 1 /* |
2 | |
19697
4197fc428c7d
maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents:
19269
diff
changeset
|
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 | |
21200
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
33 # include <config.h> |
6823 | 34 #endif |
9786
2c279308f6ab
fix includes in some src/DLD-FUNCTIONS files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
35 |
19269
65554f5847ac
don't include oct-locbuf.h in header files unnecessarily
John W. Eaton <jwe@octave.org>
parents:
18077
diff
changeset
|
36 #include "oct-locbuf.h" |
9786
2c279308f6ab
fix includes in some src/DLD-FUNCTIONS files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
37 |
6823 | 38 #include "Cell.h" |
9786
2c279308f6ab
fix includes in some src/DLD-FUNCTIONS files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
39 #include "defun-dld.h" |
2c279308f6ab
fix includes in some src/DLD-FUNCTIONS files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
40 #include "error.h" |
21126
ba0a4b4f021d
include errwarn.h in files that use err_disabled_feature conditionally
John W. Eaton <jwe@octave.org>
parents:
21109
diff
changeset
|
41 #include "errwarn.h" |
20940
48b2ad5ee801
maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
42 #include "ovl.h" |
9786
2c279308f6ab
fix includes in some src/DLD-FUNCTIONS files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
43 #include "parse.h" |
14339
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
44 #include "unwind-prot.h" |
6823 | 45 |
14043
f913363318e0
handle new names and locations of qhull include files (bug #33712)
John W. Eaton <jwe@octave.org>
parents:
13879
diff
changeset
|
46 #if defined (HAVE_QHULL) |
21200
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
47 # include "oct-qhull.h" |
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
48 # if defined (NEED_QHULL_VERSION) |
6823 | 49 char qh_version[] = "convhulln.oct 2007-07-24"; |
21200
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
50 # endif |
14043
f913363318e0
handle new names and locations of qhull include files (bug #33712)
John W. Eaton <jwe@octave.org>
parents:
13879
diff
changeset
|
51 #endif |
6823 | 52 |
14339
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
53 static void |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
54 close_fcn (FILE *f) |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
55 { |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
56 gnulib::fclose (f); |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
57 } |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
58 |
18077
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
59 static bool |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
60 octave_qhull_dims_ok (octave_idx_type dim, octave_idx_type n, const char *who) |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
61 { |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
62 if (sizeof (octave_idx_type) > sizeof (int)) |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
63 { |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
64 int maxval = std::numeric_limits<int>::max (); |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
65 |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
66 if (dim > maxval || n > maxval) |
20825
66cd994d1b79
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20790
diff
changeset
|
67 error ("%s: dimension too large for Qhull", who); |
18077
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
68 } |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
69 |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
70 return true; |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
71 } |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
72 |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
73 DEFUN_DLD (convhulln, args, nargout, |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
74 "-*- texinfo -*-\n\ |
20853
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
20825
diff
changeset
|
75 @deftypefn {} {@var{h} =} convhulln (@var{pts})\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
20825
diff
changeset
|
76 @deftypefnx {} {@var{h} =} convhulln (@var{pts}, @var{options})\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
20825
diff
changeset
|
77 @deftypefnx {} {[@var{h}, @var{v}] =} convhulln (@dots{})\n\ |
20163
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
78 Compute the convex hull of the set of points @var{pts}.\n\ |
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
79 \n\ |
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
80 @var{pts} is a matrix of size [n, dim] containing n points in a space of\n\ |
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
81 dimension dim.\n\ |
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents:
19697
diff
changeset
|
82 \n\ |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
83 The hull @var{h} is an index vector into the set of points and specifies\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
84 which points form the enclosing hull.\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
85 \n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
86 An optional second argument, which must be a string or cell array of strings,\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
87 contains options passed to the underlying qhull command.\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
88 See the documentation for the Qhull library for details\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
89 @url{http://www.qhull.org/html/qh-quick.htm#options}.\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
90 The default options depend on the dimension of the input:\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
91 \n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
92 @itemize\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
93 @item 2D, 3D, 4D: @var{options} = @code{@{\"Qt\"@}}\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
94 \n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
95 @item 5D and higher: @var{options} = @code{@{\"Qt\", \"Qx\"@}}\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
96 @end itemize\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
97 \n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
98 If @var{options} is not present or @code{[]} then the default arguments are\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
99 used. Otherwise, @var{options} replaces the default argument list.\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
100 To append user options to the defaults it is necessary to repeat the\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
101 default arguments in @var{options}. Use a null string to pass no arguments.\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
102 \n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
103 If the second output @var{v} is requested the volume of the enclosing\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
104 convex hull is calculated.\n\n\ |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
105 @seealso{convhull, delaunayn, voronoin}\n\ |
6823 | 106 @end deftypefn") |
107 { | |
14043
f913363318e0
handle new names and locations of qhull include files (bug #33712)
John W. Eaton <jwe@octave.org>
parents:
13879
diff
changeset
|
108 #if defined (HAVE_QHULL) |
6823 | 109 |
6959 | 110 int nargin = args.length (); |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
111 |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
112 if (nargin < 1 || nargin > 2) |
20790
c2d9556d51d0
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
113 print_usage (); |
6823 | 114 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
115 octave_value_list retval; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
116 |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
117 Matrix points (args(0).matrix_value ()); |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
118 const octave_idx_type dim = points.columns (); |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
119 const octave_idx_type num_points = points.rows (); |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
120 |
18077
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
121 if (! octave_qhull_dims_ok (dim, num_points, "convhulln")) |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
122 return retval; |
ac74b0c4c564
avoid overflow when passing problem dimensions to qhull with --enable-64
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
123 |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
124 points = points.transpose (); |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
125 |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
126 std::string options; |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
127 |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
128 if (dim <= 4) |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
129 options = " Qt"; |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
130 else |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
131 options = " Qt Qx"; |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
132 |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
133 if (nargin == 2) |
6823 | 134 { |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
135 if (args(1).is_string ()) |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
136 options = " " + args(1).string_value (); |
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
137 else if (args(1).is_empty ()) |
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
138 ; // Use default options. |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
139 else if (args(1).is_cellstr ()) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
140 { |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
141 options = ""; |
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
142 |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
143 Array<std::string> tmp = args(1).cellstr_value (); |
6823 | 144 |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
145 for (octave_idx_type i = 0; i < tmp.numel (); i++) |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
146 options += " " + tmp(i); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
147 } |
6823 | 148 else |
20825
66cd994d1b79
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20790
diff
changeset
|
149 error ("convhulln: OPTIONS must be a string, cell array of strings, or empty"); |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
150 } |
6823 | 151 |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
152 boolT ismalloc = false; |
10257
cd550069240e
assume vsnprintf from gnulib; use sstream instead of snprintf
John W. Eaton <jwe@octave.org>
parents:
10154
diff
changeset
|
153 |
14339
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
154 unwind_protect frame; |
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
155 |
14309
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
156 // Replace the outfile pointer with stdout for debugging information. |
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
157 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM) |
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
158 FILE *outfile = gnulib::fopen ("NUL", "w"); |
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
159 #else |
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
160 FILE *outfile = gnulib::fopen ("/dev/null", "w"); |
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
161 #endif |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
162 FILE *errfile = stderr; |
14339
3e4350f09a55
close temporary files opened for Qhull
John W. Eaton <jwe@octave.org>
parents:
14310
diff
changeset
|
163 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
164 if (! outfile) |
20825
66cd994d1b79
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20790
diff
changeset
|
165 error ("convhulln: unable to create temporary file for output"); |
14309
824e5d362aba
Fix Qhull calling convention by passing true file pointer to qh_new_qhull
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
166 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
167 frame.add_fcn (close_fcn, outfile); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
168 |
13879
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
169 // qh_new_qhull command and points arguments are not const... |
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
170 |
440d7914cf01
fix regression in __voronoi__ and convhulln option processing
John W. Eaton <jwe@octave.org>
parents:
13877
diff
changeset
|
171 std::string cmd = "qhull" + options; |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
172 |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
173 OCTAVE_LOCAL_BUFFER (char, cmd_str, cmd.length () + 1); |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
174 |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
175 strcpy (cmd_str, cmd.c_str ()); |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
176 |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
177 int exitcode = qh_new_qhull (dim, num_points, points.fortran_vec (), |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
178 ismalloc, cmd_str, outfile, errfile); |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
179 if (exitcode) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
180 error ("convhulln: qhull failed"); |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
181 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
182 bool nonsimp_seen = false; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
183 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
184 octave_idx_type nf = qh num_facets; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
185 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
186 Matrix idx (nf, dim + 1); |
6823 | 187 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
188 facetT *facet; |
6823 | 189 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
190 octave_idx_type i = 0; |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
191 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
192 FORALLfacets |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
193 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
194 octave_idx_type j = 0; |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
195 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
196 if (! (nonsimp_seen || facet->simplicial || qh hull_dim == 2)) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
197 { |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
198 nonsimp_seen = true; |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
199 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
200 if (cmd.find ("QJ") != std::string::npos) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
201 // Should never happen with QJ. |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
202 error ("convhulln: qhull failed: option 'QJ' returned non-simplicial facet"); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
203 } |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
204 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
205 if (dim == 3) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
206 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
207 setT *vertices = qh_facet3vertex (facet); |
6823 | 208 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
209 vertexT *vertex, **vertexp; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
210 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
211 FOREACHvertex_ (vertices) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
212 idx(i, j++) = 1 + qh_pointid(vertex->point); |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
213 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
214 qh_settempfree (&vertices); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
215 } |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
216 else |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
217 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
218 if (facet->toporient ^ qh_ORIENTclock) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
219 { |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
220 vertexT *vertex, **vertexp; |
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
221 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
222 FOREACHvertex_ (facet->vertices) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
223 idx(i, j++) = 1 + qh_pointid(vertex->point); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
224 } |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
225 else |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
226 { |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
227 vertexT *vertex, **vertexp; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
228 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
229 FOREACHvertexreverse12_ (facet->vertices) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
230 idx(i, j++) = 1 + qh_pointid(vertex->point); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
231 } |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
232 } |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
233 if (j < dim) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
234 warning ("convhulln: facet %d only has %d vertices", i, j); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
235 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
236 i++; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
237 } |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
238 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
239 // Remove extra dimension if all facets were simplicial. |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
240 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
241 if (! nonsimp_seen) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
242 idx.resize (nf, dim, 0.0); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
243 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
244 if (nargout == 2) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
245 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
246 // Calculate volume of convex hull, taken from qhull src/geom2.c. |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
247 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
248 realT area; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
249 realT dist; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
250 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
251 FORALLfacets |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
252 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
253 if (! facet->normal) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
254 continue; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
255 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
256 if (facet->upperdelaunay && qh ATinfinity) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
257 continue; |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
258 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
259 facet->f.area = area = qh_facetarea (facet); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
260 facet->isarea = True; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
261 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
262 if (qh DELAUNAY) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
263 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
264 if (facet->upperdelaunay == qh UPPERdelaunay) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
265 qh totarea += area; |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
266 } |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
267 else |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
268 { |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
269 qh totarea += area; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
270 qh_distplane (qh interior_point, facet, &dist); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
271 qh totvol += -dist * area/ qh hull_dim; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
272 } |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9786
diff
changeset
|
273 } |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
274 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
275 retval(1) = octave_value (qh totvol); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
276 } |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
277 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
278 retval(0) = idx; |
6959 | 279 |
13877
0d32a681d943
* convhulln.cc: Clean up argument parsing and variable decls.
John W. Eaton <jwe@octave.org>
parents:
13746
diff
changeset
|
280 // Free memory from Qhull |
6959 | 281 qh_freeqhull (! qh_ALL); |
282 | |
6823 | 283 int curlong, totlong; |
284 qh_memfreeshort (&curlong, &totlong); | |
285 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
286 if (curlong || totlong) |
6959 | 287 warning ("convhulln: did not free %d bytes of long memory (%d pieces)", |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
288 totlong, curlong); |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
289 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
290 return retval; |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
291 |
6823 | 292 #else |
21109
bd1752782e56
Use err_disabled_feature, warn_disabled_feature throughout code base.
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
293 err_disabled_feature ("convhulln", "Qhull"); |
6823 | 294 #endif |
295 } | |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
296 |
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
297 /* |
10474
b2143d97c002
Neither include qhull/qhull_a.h nor run tests unless we HAVE_QHULL.
David Grundberg <davidg@cs.umu.se>
parents:
10257
diff
changeset
|
298 %!testif HAVE_QHULL |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
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"); |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
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]); | |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
304 %! assert (v, 1, 10*eps); |
14310 | 305 %! [h2, v2] = convhulln (cube); % Test defaut option = "Qt" |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14346
diff
changeset
|
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); | |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
310 |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
311 %!testif HAVE_QHULL |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
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]; |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
313 %! [h, v] = convhulln (cube, "QJ"); |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
314 %! assert (size (h), [12 3]); |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
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]); |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
316 %! assert (v, 1.0, 1e6*eps); |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
317 |
10474
b2143d97c002
Neither include qhull/qhull_a.h nor run tests unless we HAVE_QHULL.
David Grundberg <davidg@cs.umu.se>
parents:
10257
diff
changeset
|
318 %!testif HAVE_QHULL |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
319 %! tetrahedron = [1 1 1;-1 -1 1;-1 1 -1;1 -1 -1]; |
13746
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
320 %! [h, v] = convhulln (tetrahedron); |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
321 %! h = sortrows (sort (h, 2), [1 2 3]); |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
322 %! assert (h, [1 2 3;1 2 4; 1 3 4; 2 3 4]); |
7ff0bdc3dc4c
Revamp geometry functions dependent on Qhull (Bug #34604, Bug #33346)
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
323 %! assert (v, 8/3, 10*eps); |
15885
065bc7944335
fix incorrect results for convhulln in some cases (bug #38013)
John W. Eaton <jwe@octave.org>
parents:
14339
diff
changeset
|
324 |
065bc7944335
fix incorrect results for convhulln in some cases (bug #38013)
John W. Eaton <jwe@octave.org>
parents:
14339
diff
changeset
|
325 %!testif HAVE_QHULL |
065bc7944335
fix incorrect results for convhulln in some cases (bug #38013)
John W. Eaton <jwe@octave.org>
parents:
14339
diff
changeset
|
326 %! triangle=[0 0; 1 1; 1 0; 1 2]; |
065bc7944335
fix incorrect results for convhulln in some cases (bug #38013)
John W. Eaton <jwe@octave.org>
parents:
14339
diff
changeset
|
327 %! h = convhulln (triangle); |
065bc7944335
fix incorrect results for convhulln in some cases (bug #38013)
John W. Eaton <jwe@octave.org>
parents:
14339
diff
changeset
|
328 %! assert (size (h), [3 2]); |
8786
dbd428efbf56
Add calculation convex hull volume
Kai Habel <kai.habel@gmx.de>
parents:
7520
diff
changeset
|
329 */ |