[Octave-cvsupdate] SF.net SVN: octave:[9017] trunk/octave-forge/extra/quaternion_oo/devel

[<jpi...@us...>]

Revision: 9017
          http://octave.svn.sourceforge.net/octave/?rev=9017&view=rev
Author:   jpicarbajal
Date:     2011-11-07 14:46:13 +0000 (Mon, 07 Nov 2011)
Log Message:
-----------
quaternion_oo. Updating port file and adding the vectorized norm method.

Modified Paths:
--------------
    trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt

Added Paths:
-----------
    trunk/octave-forge/extra/quaternion_oo/devel/norm.m

Modified: trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt	2011-11-07 01:39:25 UTC (rev 9016)
+++ trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt	2011-11-07 14:46:13 UTC (rev 9017)
@@ -14,6 +14,7 @@
 %%    along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 === Robotics Toolbox Port to Octave ===
+http://petercorke.com/Robotics_Toolbox.html
 With the objective of porting the robotics toolbox version 9 to octave forge
 we list the classes relate to quaternions.
 
@@ -95,8 +96,10 @@
 == Quaternion ==
 
 = methods =
-[] inv       return inverse of quaterion
-[] norm      return norm of quaternion
+[c] inv       return inverse of quaterion
+By Monday, November 07 2011 this function is equivalent to the conj function of quaternions_oo
+
+[*] norm      return norm of quaternion
 [] unit      return unit quaternion
 [] unitize   unitize this quaternion
 [] plot      same options as trplot()
@@ -105,11 +108,11 @@
 [] dot       derivative of quaternion with angular velocity w
 
 = Operators =
-[] q+q2      return elementwise sum of quaternions
-[] q-q2      return elementwise difference of quaternions
-[] q*q2      return quaternion product
-[] q*v       rotate vector by quaternion, v is 3x1
-[] q/q2      return q*q2.inv
+[*] q+q2      return elementwise sum of quaternions
+[*] q-q2      return elementwise difference of quaternions
+[*] q*q2      return quaternion product
+[*] q*v       rotate vector by quaternion, v is 3x1
+[*] q/q2      return q*q2.inv
 [] q^n       return q to power n (integer only)
 
 = Properties (read only)=

Added: trunk/octave-forge/extra/quaternion_oo/devel/norm.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/norm.m	                        (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/norm.m	2011-11-07 14:46:13 UTC (rev 9017)
@@ -0,0 +1,30 @@
+## Copyright (c) 2011 Juan Pablo Carbajal <car...@if...>
+##
+##    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
+##    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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{n} = } norm (@var{q})
+## Computes the norm of a quaternion.
+##
+## The norm of a quaternion is defined as the sum of its squares components.
+## @var{q} can be a N-by-4 array representign N quaternions. In that case
+## @var{n} is of the same size as @var{q}.
+##
+## @end deftypefn
+
+function n = norm (q)
+
+  n = sqrt (sumsq (q,2));
+
+endfunction

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