Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / vrml-1.0.13 / vrml_anim.m

diff --git a/octave_packages/vrml-1.0.13/vrml_anim.m b/octave_packages/vrml-1.0.13/vrml_anim.m
new file mode 100644 (file)
index 0000000..39b0ef0
--- /dev/null
+++ b/octave_packages/vrml-1.0.13/vrml_anim.m
@@ -0,0 +1,45 @@
+## Copyright (C) 2005-2012 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_anim (typ, val, eventin, time)
+##
+## Assemble 
+## - an interpolator of type typ, with values val
+## - a TimeSensor with period time
+## and route the event to eventin
+## 
+function [s,tname] = vrml_anim (typ, val, eventin, key, period)
+
+if nargin < 4, key = [0 1]; end
+if nargin < 5, period = 5; end
+
+iname = vrml_newname ();
+
+si = vrml_interp (typ, val,"key",key, "DEF",iname);
+if isnumeric (period)
+  tname = vrml_newname ();
+  st = vrml_TimeSensor ("cycleInterval",period,"loop",1,"DEF",tname);
+
+else                           # Use previously declared TimeSensor
+  tname = period;
+  st = "";
+end
+
+sr = vrml_ROUTE ([tname,".fraction_changed"],[iname,".set_fraction"]);
+sr2 = vrml_ROUTE ([iname,".value_changed"],eventin);
+
+s = [si, st, sr, sr2];
+endfunction
+