/usr/share/doc/libplplot11/examples/octave/x13c.m is in octave-plplot 5.9.9-2ubuntu2.
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 | ## Copyright (C) 1998, 1999, 2000 Joao Cardoso
## Copyright (C) 2004 Rafael Laboissiere
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by the
## Free Software Foundation; either version 2 of the License, or (at your
## option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## This file is part of plplot_octave.
## It is based on the corresponding demo function of PLplot.
## Does a simple pie chart.
function x13c
text =[
"Maurice",
"Geoffrey",
"Alan",
"Rafael",
"Vince"
];
per(1) = 10.;
per(2) = 32.;
per(3) = 12.;
per(4) = 30.;
per(5) = 16.;
## Parse and process command line arguments */
## (void) plparseopts(&argc, argv, PL_PARSE_FULL);
## Initialize plplot */
plinit();
pladv(0);
## Ensure window has aspect ratio of one so circle is
## plotted as a circle. */
plvasp(1.0);
plwind(0., 10., 0., 10.);
##plenv(0., 10., 0., 10., 1, -2);
plcol0(2);
theta0 = 0.;
dthet = 2 * pi / 500;
for i=0:4
x = [];
y = [];
j = 0;
x(j+1) = 5.;
y(j+1) = 5.;
j=j+1;
theta1 = theta0 + 2 * pi * per(i+1) / 100.;
if (i == 4)
theta1 = 2 * pi;
endif
for theta = theta0:dthet:theta1
x(j+1) = 5 + 3 * cos(theta);
y(j+1) = 5 + 3 * sin(theta);
j=j+1;
endfor
plcol0(i+1);
plpsty(rem((i + 3), 8) + 1);
plfill(x', y');
plcol0(1);
plline(x', y');
just = (theta0 + theta1) / 2.;
dx = .25 * cos(just); dy = .25 * sin(just);
if ((just < pi / 2) || (just > 3 * pi / 2) )
just = 0.;
else
just = 1.;
endif
plptex((x((j / 2) +1) + dx), (y((j / 2) +1) + dy), 1.0, 0.0, just, deblank(text(i+1,:)));
theta0 = theta1;
endfor
plfont(2);
plschr(0., 1.3);
plptex(5.0, 9.0, 1.0, 0.0, 0.5, "Percentage of Sales");
plend1();
endfunction
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