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diff --git a/octave_packages/vrml-1.0.13/vrml_Box.m b/octave_packages/vrml-1.0.13/vrml_Box.m
new file mode 100644
index 0000000..1a81a38
--- /dev/null
+++ b/octave_packages/vrml-1.0.13/vrml_Box.m
@@ -0,0 +1,34 @@
+## Copyright (C) 2010-2012 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/>.
+
+## s = vrml_Box (sz) - Box { ... } node
+##
+## If sz is not given, returns Box { }
+## If sz has size 1, returns   Box { <sz> <sz> <sz> }
+## If sz has size 3, returns   Box { <sz(1)> <sz(2)> <sz(3)> }
+
+function s = vrml_Box (sz)
+
+if nargin < 1,       sz = []; end
+if length (sz) == 1, sz = sz * [1 1 1]; end
+if !isempty (sz)
+  assert (numel (sz) == 3);
+  ssz = sprintf ("\n  size %f %f %f\n",sz);
+else
+  ssz = "";
+end
+
+s = ["Box {",ssz,"}\n"];
+