/usr/share/octave/packages/vrml-1.0.13/vrml_demo_tutorial_4.m is in octave-vrml 1.0.13-2.
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 | ## Copyright (C) 2002-2009 Etienne Grossmann <etienne@egdn.net>
##
## 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 3 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.
##
## You should have received a copy of the GNU General Public License along with
## this program; if not, see <http://www.gnu.org/licenses/>.
printf (["\n",\
" VRML Mini-HOWTO's second listing\n",\
" Show a helix of ellipsoids and one consisting of cylinders\n\n"]);
printf ([" Reminder of FreeWRL keystrokes and mouse actions :\n"\
" q : quit\n",\
" w : switch to walk mode\n",\
" e : switch to examine mode\n",\
" h : toggle headlights on or off\n",\
" drag left mouse : rotate (examine mode) or translate\n",\
" (walk mode).\n",\
" drag right mouse : zoom (examine mode) or translate\n",\
" (walk mode).\n",\
"\n"]);
## Listing 4
x = linspace (0,4*pi,50);
# Points on a helix
xx1 = [x/6; sin(x); cos(x)];
# Linked by segments
s1 = vrml_cyl (xx1, "col",kron (ones (3,25),[0.7 0.3]));
# Scaled and represented by spheres
s2 = vrml_points (xx1,"balls");
s2 = vrml_transfo (s2,nan,[pi/2,0,0],[1 0.5 0.5]);
s3 = vrml_Background ("skyColor",[0 0 1]);
vrml_browse ([s1, s2, s3]);
|