/usr/share/octave/packages/geometry-1.7.0/geom2d/drawRect.m is in octave-geometry 1.7.0-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | ## Copyright (C) 2004-2011 David Legland <david.legland@grignon.inra.fr>
## Copyright (C) 2004-2011 INRA - CEPIA Nantes - MIAJ (Jouy-en-Josas)
## Copyright (C) 2012 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are met:
##
## 1 Redistributions of source code must retain the above copyright notice,
## this list of conditions and the following disclaimer.
## 2 Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in the
## documentation and/or other materials provided with the distribution.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS''
## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
## SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
## CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{r} = } drawRect (@var{x}, @var{y}, @var{w}, @var{h})
## @deftypefnx {Function File} {@var{r} = } drawRect (@var{x}, @var{y}, @var{w}, @var{h}, @var{theta})
## @deftypefnx {Function File} {@var{r} = } drawRect (@var{coord})
## Draw rectangle on the current axis.
##
## r = DRAWRECT(x, y, w, h) draw rectangle with width W and height H, at
## position (X, Y).
## the four corners of rectangle are then :
## (X, Y), (X+W, Y), (X, Y+H), (X+W, Y+H).
##
## r = DRAWRECT(x, y, w, h, theta) also specifies orientation for
## rectangle. Theta is given in degrees.
##
## r = DRAWRECT(coord) is the same as DRAWRECT(X,Y,W,H), but all
## parameters are packed into one array, whose dimensions is 4*1 or 5*1.
##
##
## @seealso{drawBox, drawOrientedBox}
## @end deftypefn
function varargout = drawRect(varargin)
# default values
theta = 0;
# get entered values
if length(varargin) > 3
x = varargin{1};
y = varargin{2};
w = varargin{3};
h = varargin{4};
if length(varargin)> 4
theta = varargin{5} * pi / 180;
end
else
coord = varargin{1};
x = coord(1);
y = coord(2);
w = coord(3);
h = coord(4);
if length(coord) > 4
theta = coord(5) * pi / 180;
end
end
r = zeros(size(x));
for i = 1:length(x)
tx = zeros(5, 1);
ty = zeros(5, 1);
tx(1) = x(i);
ty(1) = y(i);
tx(2) = x(i) + w(i) * cos(theta(i));
ty(2) = y(i) + w(i) * sin(theta(i));
tx(3) = x(i) + w(i) * cos(theta(i)) - h(i) * sin(theta(i));
ty(3) = y(i) + w(i) * sin(theta(i)) + h(i) * cos(theta(i));
tx(4) = x(i) - h(i) * sin(theta(i));
ty(4) = y(i) + h(i) * cos(theta(i));
tx(5) = x(i);
ty(5) = y(i);
r(i) = line(tx, ty);
end
if nargout > 0
varargout{1} = r;
end
endfunction
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