octave: scripts/geometry/inpolygon.m annotate

annotate scripts/geometry/inpolygon.m @ 20133:bef9086a6725

inpolygon.m: Overhaul function and fix bug #40970. * NEWS: Announce changes in inpolygon definition. * inpolygon.m: Use 'in |= on' to include points on the boundary since this is what Matlab does. Rewrite docstring with new definition. Change error() messages to be more explicit. Add more input validation tests.

author	Rik <rik@octave.org>
date	Sat, 25 Apr 2015 20:50:36 -0700
parents	9fc020886ae9
children	7503499a252b

rev	line source
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17744 diff changeset	1 ## Copyright (C) 2006-2015 Frederick (Rick) A Niles
17243 f4c8c66faf34 maint: Update source file encodings to UTF-8 and fix character errors Mike Miller <mtmiller@ieee.org> parents: 14868 diff changeset	2 ## and Søren Hauberg
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	3 ##
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	4 ## This file is part of Octave.
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	5 ##
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	6 ## Octave is free software; you can redistribute it and/or modify it
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	7 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6847 diff changeset	8 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6847 diff changeset	9 ## your option) any later version.
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	10 ##
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	11 ## Octave is distributed in the hope that it will be useful, but
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	14 ## General Public License for more details.
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	15 ##
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	16 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6847 diff changeset	17 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6847 diff changeset	18 ## <http://www.gnu.org/licenses/>.
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	19
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	20 ## -- texinfo --
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	21 ## @deftypefn {Function File} {@var{in} =} inpolygon (@var{x}, @var{y}, @var{xv}, @var{yv})
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	22 ## @deftypefnx {Function File} {[@var{in}, @var{on}] =} inpolygon (@var{x}, @var{y}, @var{xv}, @var{yv})
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	23 ##
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	24 ## For a polygon defined by vertex points @code{(@var{xv}, @var{yv})}, return
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	25 ## true if the points @code{(@var{x}, @var{y})} are inside (or on the boundary)
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	26 ## of the polygon; Otherwise, return false.
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	27 ##
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	28 ## The variables @var{x}, @var{y}, must have the same dimension. The optional
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	29 ## output @var{on} returns true if the points are exactly on the polygon
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	30 ## edge, and false otherwise.
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	31 ## @seealso{delaunay}
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	32 ## @end deftypefn
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	33
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	34 ## Author: Frederick (Rick) A Niles <niles@rickniles.com>
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	35 ## Created: 14 November 2006
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	36
17243 f4c8c66faf34 maint: Update source file encodings to UTF-8 and fix character errors Mike Miller <mtmiller@ieee.org> parents: 14868 diff changeset	37 ## Vectorized by Søren Hauberg <soren@hauberg.org>
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	38
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	39 ## The method for determining if a point is in in a polygon is based on
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	40 ## the algorithm shown on
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	41 ## http://local.wasp.uwa.edu.au/~pbourke/geometry/insidepoly/
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	42 ## and is credited to Randolph Franklin.
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	43
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	44 function [in, on] = inpolygon (x, y, xv, yv)
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	45
7125 f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	46 if (nargin != 4)
f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	47 print_usage ();
f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	48 endif
f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	49
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	50 if (! (isreal (x) && isreal (y) && ismatrix (y) && ismatrix (y)
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	51 && size_equal (x, y)))
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	52 error ("inpolygon: X and Y must be real matrices of the same size");
7125 f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	53 elseif (! (isreal (xv) && isreal (yv) && isvector (xv) && isvector (yv)
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	54 && size_equal (xv, yv)))
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	55 error ("inpolygon: XV and YV must be real vectors of the same size");
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	56 endif
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	57
7125 f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	58 npol = length (xv);
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	59
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	60 in = on = false (size (x));
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	61
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	62 j = npol;
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	63 for i = 1 : npol
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	64 delta_xv = xv(j) - xv(i);
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	65 delta_yv = yv(j) - yv(i);
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	66 ## distance = [distance from (x,y) to edge] * length(edge)
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	67 distance = delta_xv .* (y - yv(i)) - (x - xv(i)) .* delta_yv;
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	68
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	69 ## is y between the y-values of edge i,j AND (x,y) on the left of the edge?
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	70 idx1 = (((yv(i) <= y & y < yv(j)) \| (yv(j) <= y & y < yv(i)))
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	71 & 0 < distance.*delta_yv);
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	72 in(idx1) = ! in(idx1);
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	73
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10549 diff changeset	74 ## Check if (x,y) are actually on the boundary of the polygon.
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	75 idx2 = (((yv(i) <= y & y <= yv(j)) \| (yv(j) <= y & y <= yv(i)))
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	76 & ((xv(i) <= x & x <= xv(j)) \| (xv(j) <= x & x <= xv(i)))
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	77 & (0 == distance \| !delta_xv));
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	78 on(idx2) = true;
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	79
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	80 j = i;
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	81 endfor
7125 f084ba47812b [project @ 2007-11-08 02:29:23 by jwe] jwe parents: 7017 diff changeset	82
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	83 ## Matlab definition include both in polygon and on polygon points.
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	84 in \|= on;
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	85
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	86 endfunction
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	87
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	88
956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	89 %!demo
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	90 %! xv = [ 0.05840, 0.48375, 0.69356, 1.47478, 1.32158, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	91 %! 1.94545, 2.16477, 1.87639, 1.18218, 0.27615, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	92 %! 0.05840 ];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	93 %! yv = [ 0.60628, 0.04728, 0.50000, 0.50000, 0.02015, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	94 %! 0.18161, 0.78850, 1.13589, 1.33781, 1.04650, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	95 %! 0.60628 ];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	96 %! xa = [0:0.1:2.3];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	97 %! ya = [0:0.1:1.4];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	98 %! [x,y] = meshgrid (xa, ya);
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	99 %! [in,on] = inpolygon (x, y, xv, yv);
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	100 %! inside = in & !on;
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	101 %!
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	102 %! clf;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	103 %! plot (xv, yv);
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	104 %! hold on;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	105 %! plot (x(inside), y(inside), "@g")
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	106 %! plot (x(!in), y(!in), "@m");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	107 %! plot (x(on), y(on), "@b");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	108 %! hold off;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	109 %! disp ("Green points are inside polygon, magenta are outside,");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	110 %! disp ("and blue are on boundary.");
6847 956148c0d388 [project @ 2007-08-30 07:39:32 by dbateman] dbateman parents: diff changeset	111
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	112 %!demo
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	113 %! xv = [ 0.05840, 0.48375, 0.69356, 1.47478, 1.32158, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	114 %! 1.94545, 2.16477, 1.87639, 1.18218, 0.27615, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	115 %! 0.05840, 0.73295, 1.28913, 1.74221, 1.16023, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	116 %! 0.73295, 0.05840 ];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	117 %! yv = [ 0.60628, 0.04728, 0.50000, 0.50000, 0.02015, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	118 %! 0.18161, 0.78850, 1.13589, 1.33781, 1.04650, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	119 %! 0.60628, 0.82096, 0.67155, 0.96114, 1.14833, ...
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	120 %! 0.82096, 0.60628];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	121 %! xa = [0:0.1:2.3];
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	122 %! ya = [0:0.1:1.4];
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	123 %! [x, y] = meshgrid (xa, ya);
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	124 %! [in, on] = inpolygon (x, y, xv, yv);
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	125 %! inside = in & !on;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	126 %!
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	127 %! clf;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	128 %! plot (xv, yv);
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	129 %! hold on;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	130 %! plot (x(inside), y(inside), "@g");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	131 %! plot (x(!in), y(!in), "@m");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	132 %! plot (x(on), y(on), "@b");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	133 %! hold off;
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	134 %! disp ("Green points are inside polygon, magenta are outside,");
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	135 %! disp ("and blue are on boundary.");
13057 85c77dd2e85b codesprint: tests for inpolygon John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	136
85c77dd2e85b codesprint: tests for inpolygon John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	137 %!test
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	138 %! [in, on] = inpolygon ([1, 0, 2], [1, 0, 0], [-1, -1, 1, 1], [-1, 1, 1, -1]);
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	139 %! assert (in, [true, true, false]);
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	140 %! assert (on, [true, false, false]);
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	141
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	142 ## Test input validation
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	143 %!error inpolygon ()
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	144 %!error inpolygon (1, 2)
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	145 %!error inpolygon (1, 2, 3)
20133 bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	146 %!error inpolygon (1, 2, 3, 4, 5)
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	147 %!error <X and Y must be real matrices> inpolygon (1i, 1, [3, 4], [5, 6])
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	148 %!error <X and Y must be real matrices> inpolygon (1, {1}, [3, 4], [5, 6])
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	149 %!error <X and Y must be .* the same size> inpolygon (1, [1,2], [3, 4], [5, 6])
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	150 %!error <XV and YV must be real vectors> inpolygon (1, 1, [3i, 4], [5, 6])
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	151 %!error <XV and YV must be real vectors> inpolygon (1, 1, [3, 4], {5, 6})
bef9086a6725 inpolygon.m: Overhaul function and fix bug #40970. Rik <rik@octave.org> parents: 19833 diff changeset	152 %!error <XV and YV must .* the same size> inpolygon ([1,2], [3, 4], [5, 6], 1)
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14222 diff changeset	153

Mercurial > octave

annotate scripts/geometry/inpolygon.m @ 20133:bef9086a6725