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From: <par...@us...> - 2010-05-16 20:22:32
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Revision: 7313
http://octave.svn.sourceforge.net/octave/?rev=7313&view=rev
Author: paramaniac
Date: 2010-05-16 20:22:25 +0000 (Sun, 16 May 2010)
Log Message:
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quaternion_oo: first commit
Added Paths:
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trunk/octave-forge/extra/quaternion_oo/doc/
trunk/octave-forge/extra/quaternion_oo/inst/
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
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From: <par...@us...> - 2010-05-17 00:35:26
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Revision: 7316
http://octave.svn.sourceforge.net/octave/?rev=7316&view=rev
Author: paramaniac
Date: 2010-05-17 00:35:19 +0000 (Mon, 17 May 2010)
Log Message:
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quaternion_oo: add files
Added Paths:
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trunk/octave-forge/extra/quaternion_oo/COPYING
trunk/octave-forge/extra/quaternion_oo/DESCRIPTION
Added: trunk/octave-forge/extra/quaternion_oo/COPYING
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/COPYING (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/COPYING 2010-05-17 00:35:19 UTC (rev 7316)
@@ -0,0 +1,674 @@
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+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ 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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
Added: trunk/octave-forge/extra/quaternion_oo/DESCRIPTION
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/DESCRIPTION (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/DESCRIPTION 2010-05-17 00:35:19 UTC (rev 7316)
@@ -0,0 +1,11 @@
+Name: quaternion
+Version: 0.1.0
+Date: 2010-05-17
+Author: Lukas Reichlin <luk...@gm...>
+Maintainer: Lukas Reichlin <luk...@gm...>
+Title: Quaternion
+Description: Overloaded operators for quaternions
+Depends: octave (>= 3.2.3)
+Autoload: yes
+License: GPL version 3 or later
+Url: http://octave.sf.net
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2010-05-17 18:17:53
|
Revision: 7318
http://octave.svn.sourceforge.net/octave/?rev=7318&view=rev
Author: paramaniac
Date: 2010-05-17 18:17:46 +0000 (Mon, 17 May 2010)
Log Message:
-----------
quaternion_oo: add some operators
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-17 00:45:25 UTC (rev 7317)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-17 18:17:46 UTC (rev 7318)
@@ -10,6 +10,9 @@
@quaternion/uminus
@quaternion/times
@quaternion/mtimes
+ @quaternion/inv
+ @quaternion/mldivide
+ @quaternion/mrdivide
@quaternion/transpose
@quaternion/ctranspose
@quaternion/horzcat
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2010-05-17 18:17:46 UTC (rev 7318)
@@ -0,0 +1,43 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{qinv} =} inv (@var{q})
+## Return inverse of a quaternion.
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
+function a = inv (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ if (! isscalar (a.w))
+ error ("quaternion: inv: implemented for scalar quaternions only");
+ endif
+
+ norm2 = a.w*a.w + a.x*a.x + a.y*a.y + a.z*a.z;
+
+ a.w = a.w / norm2;
+ a.x = -a.x / norm2;
+ a.y = -a.y / norm2;
+ a.z = -a.z / norm2;
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m 2010-05-17 18:17:46 UTC (rev 7318)
@@ -0,0 +1,28 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Matrix left division for quaternions. Used by Octave for "q1 \ q2"
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
+function q = mldivide (a, b)
+
+ q = inv (a) * b;
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m 2010-05-17 18:17:46 UTC (rev 7318)
@@ -0,0 +1,28 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Matrix right division for quaternions. Used by Octave for "q1 / q2"
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
+function q = mrdivide (a, b)
+
+ q = a * inv (b);
+
+endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2010-05-18 04:49:50
|
Revision: 7319
http://octave.svn.sourceforge.net/octave/?rev=7319&view=rev
Author: paramaniac
Date: 2010-05-18 04:49:43 +0000 (Tue, 18 May 2010)
Log Message:
-----------
quaternion_oo: add some more operators
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-17 18:17:46 UTC (rev 7318)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-18 04:49:43 UTC (rev 7319)
@@ -11,8 +11,12 @@
@quaternion/times
@quaternion/mtimes
@quaternion/inv
+ @quaternion/rdivide
+ @quaternion/ldivide
+ @quaternion/mrdivide
@quaternion/mldivide
- @quaternion/mrdivide
+ @quaternion/power
+ @quaternion/mpower
@quaternion/transpose
@quaternion/ctranspose
@quaternion/horzcat
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m 2010-05-18 04:49:43 UTC (rev 7319)
@@ -0,0 +1,28 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Element-wise left division for quaternions. Used by Octave for "q1 .\ q2"
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
+function q = ldivide (a, b)
+
+ q = a.^-1 .* b;
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2010-05-18 04:49:43 UTC (rev 7319)
@@ -0,0 +1,9 @@
+function a = mpower (a, b)
+
+ if (b == -1 && isa (a, "quaternion") && isscalar (a.w))
+ a = inv (a);
+ else
+ error ("quaternion: mpower: case not implemeted");
+ endif
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2010-05-18 04:49:43 UTC (rev 7319)
@@ -0,0 +1,9 @@
+function a = power (a, b)
+
+ if (b == -1 && isa (a, "quaternion") && isscalar (a.w))
+ a = inv (a);
+ else
+ error ("quaternion: power: case not implemeted");
+ endif
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m 2010-05-18 04:49:43 UTC (rev 7319)
@@ -0,0 +1,28 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Element-wise right division for quaternions. Used by Octave for "q1 ./ q2"
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
+function q = rdivide (a, b)
+
+ q = a .* b.^-1;
+
+endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2010-05-18 05:30:43
|
Revision: 7320
http://octave.svn.sourceforge.net/octave/?rev=7320&view=rev
Author: paramaniac
Date: 2010-05-18 05:30:37 +0000 (Tue, 18 May 2010)
Log Message:
-----------
quaternion_oo: add size functions
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-18 04:49:43 UTC (rev 7319)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2010-05-18 05:30:37 UTC (rev 7320)
@@ -4,6 +4,9 @@
@quaternion/conj
@quaternion/diag
@quaternion/ispure
+ @quaternion/rows
+ @quaternion/columns
+ @quaternion/size
Overloaded and Arithmetic Operators
@quaternion/plus
@quaternion/minus
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -0,0 +1,9 @@
+function c = columns (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ c = columns (a.w);
+
+endfunction
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2010-05-18 04:49:43 UTC (rev 7319)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -33,6 +33,8 @@
error ("quaternion: inv: implemented for scalar quaternions only");
endif
+ ## TODO: quaternion arrays
+
norm2 = a.w*a.w + a.x*a.x + a.y*a.y + a.z*a.z;
a.w = a.w / norm2;
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2010-05-18 04:49:43 UTC (rev 7319)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -6,4 +6,7 @@
error ("quaternion: mpower: case not implemeted");
endif
+ ## TODO: - q1 ^ q2
+ ## - arrays
+
endfunction
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2010-05-18 04:49:43 UTC (rev 7319)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -6,4 +6,7 @@
error ("quaternion: power: case not implemeted");
endif
+ ## TODO: - q1 .^ q2
+ ## - arrays
+
endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -0,0 +1,9 @@
+function r = rows (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ r = rows (a.w);
+
+endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m 2010-05-18 05:30:37 UTC (rev 7320)
@@ -0,0 +1,12 @@
+function s = size (a, b = ":")
+
+ if (nargin > 2)
+ print_usage ();
+ endif
+
+ s = size (a.w)(b).';
+
+ ## TODO: - catch case nargout == 2
+ ## - return 1 if b > numel (s)
+
+endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2010-08-19 07:41:09
|
Revision: 7556
http://octave.svn.sourceforge.net/octave/?rev=7556&view=rev
Author: paramaniac
Date: 2010-08-19 07:41:03 +0000 (Thu, 19 Aug 2010)
Log Message:
-----------
quaternion-oo: add abs.m
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2010-08-18 21:35:28 UTC (rev 7555)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2010-08-19 07:41:03 UTC (rev 7556)
@@ -1,6 +1,7 @@
quaternion >> Quaternion
Quaternions
quaternion
+ @quaternion/abs
@quaternion/conj
@quaternion/diag
@quaternion/ispure
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m 2010-08-19 07:41:03 UTC (rev 7556)
@@ -0,0 +1,39 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{qabs} =} abs (@var{q})
+## Modulus of a quaternion.
+##
+## @example
+## q = w + x*i + y*j + z*k
+## abs (q) = sqrt (w.^2 + x.^2 + y.^2 + z.^2)
+## @end example
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: August 2010
+## Version: 0.1
+
+
+function b = abs (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ b = sqrt (a.w.^2 + a.x.^2 + a.y.^2 + a.z.^2);
+
+endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-03 17:21:23
|
Revision: 8955
http://octave.svn.sourceforge.net/octave/?rev=8955&view=rev
Author: paramaniac
Date: 2011-11-03 17:21:17 +0000 (Thu, 03 Nov 2011)
Log Message:
-----------
quaternion-oo: nicer display routine, add devel folder
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/
trunk/octave-forge/extra/quaternion_oo/devel/demoml.m
trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m
trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m
Added: trunk/octave-forge/extra/quaternion_oo/devel/demoml.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/demoml.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/demoml.m 2011-11-03 17:21:17 UTC (rev 8955)
@@ -0,0 +1,10 @@
+q = rot2q ([0, 0, 1], pi/4)
+
+% [vv, theta] = q2rot (q)
+
+x = quaternion (0, 1, 1, 0) % nicht normiert
+ % s x y z
+
+rx = q * x * conj (q) % q x q^-1
+
+% [vv, theta] = q2rot (rx)
Added: trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m 2011-11-03 17:21:17 UTC (rev 8955)
@@ -0,0 +1,31 @@
+function [vv, theta] = q2rot (q)
+
+ if (nargin ~= 1 || nargout ~= 2)
+ print_usage ();
+ end
+
+ if (abs (norm (q) - 1) > 1e-12)
+ warning ('quaternion: ||q||=%e, setting=1 for vv, theta', norm (q));
+ q = q / norm (q);
+ end
+
+ s = q.s;
+ x = q.x;
+ y = q.y;
+ z = q.z;
+
+ theta = acos (s) * 2;
+
+ if (abs (theta) > pi)
+ theta = theta - sign (theta) * pi;
+ end
+
+ sin_th_2 = norm ([x, y, z]);
+
+ if (sin_th_2 ~= 0)
+ vv = [x, y, z] / sin_th_2;
+ else
+ vv = [x, y, z];
+ end
+
+end
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m 2011-11-03 17:21:17 UTC (rev 8955)
@@ -0,0 +1,33 @@
+function q = rot2q (vv, theta)
+
+ if (nargin ~= 2 || nargout ~= 1)
+ print_usage ();
+ end
+
+ if (~ isvector (vv) || length (vv) ~= 3)
+ error ('vv must be a length three vector');
+ end
+
+ if (~ isscalar (theta))
+ error ('theta must be a scalar');
+ end
+
+ if (norm (vv) == 0)
+ error ('quaternion: vv is zero');
+ end
+
+ if (abs (norm (vv) - 1) > 1e-12)
+ warning ('quaternion: ||vv|| != 1, normalizing')
+ vv = vv / norm (vv);
+ end
+
+ if (abs (theta) > 2*pi)
+ warning ('quaternion: |theta| > 2 pi, normalizing')
+ theta = rem (theta, 2*pi);
+ end
+
+ vv = vv * sin (theta / 2);
+ d = cos (theta / 2);
+ q = quaternion (d, vv(1), vv(2), vv(3));
+
+end
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m 2011-11-03 14:11:57 UTC (rev 8954)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m 2011-11-03 17:21:17 UTC (rev 8955)
@@ -1,4 +1,4 @@
-## Copyright (C) 2010 Lukas F. Reichlin
+## Copyright (C) 2010, 2011 Lukas F. Reichlin
##
## 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
@@ -14,28 +14,52 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Display routine for quaternions. Used by Octave internally.
+## Display routine for quaternions. Used by Octave internally.
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
-## Version: 0.1
+## Version: 0.2
function display (q)
- inputname_str = inputname(1);
+ name = inputname(1);
+ s = size (q);
+
+ if (ndims (s) == 2 && all (s == 1)) # scalar quaternion
+ w = num2str (q.w, 4);
+ x = __num2str__ (q.x);
+ y = __num2str__ (q.y);
+ z = __num2str__ (q.z);
+ disp ("");
+ disp ([name, " = ", w, x, "i" y, "j", z, "k"]);
+ disp ("");
+ else # non-scalar quaternion
+ disp ([name, ".w ="]);
+ disp (q.w);
+ disp ("");
+ disp ([name, ".x ="]);
+ disp (q.x);
+ disp ("");
+ disp ([name, ".y ="]);
+ disp (q.y);
+ disp ("");
+ disp ([name, ".z ="]);
+ disp (q.z);
+ disp ("");
+ endif
- disp ([inputname_str, ".w ="]);
- disp (q.w);
- disp ("");
- disp ([inputname_str, ".x ="]);
- disp (q.x);
- disp ("");
- disp ([inputname_str, ".y ="]);
- disp (q.y);
- disp ("");
- disp ([inputname_str, ".z ="]);
- disp (q.z);
- disp ("");
+endfunction
-endfunction
\ No newline at end of file
+
+function str = __num2str__ (num)
+
+ if (sign (num) == -1)
+ str = " - ";
+ else
+ str = " + ";
+ endif
+
+ str = [str, num2str(abs (num), 4), " "];
+
+endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-03 21:52:37
|
Revision: 8965
http://octave.svn.sourceforge.net/octave/?rev=8965&view=rev
Author: paramaniac
Date: 2011-11-03 21:52:30 +0000 (Thu, 03 Nov 2011)
Log Message:
-----------
quaternion-oo: simplify constructor again, add an oct-file for argument checking
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/DESCRIPTION
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/Makefile
trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m
trunk/octave-forge/extra/quaternion_oo/src/
trunk/octave-forge/extra/quaternion_oo/src/Makefile
trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc
Modified: trunk/octave-forge/extra/quaternion_oo/DESCRIPTION
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/DESCRIPTION 2011-11-03 21:51:53 UTC (rev 8964)
+++ trunk/octave-forge/extra/quaternion_oo/DESCRIPTION 2011-11-03 21:52:30 UTC (rev 8965)
@@ -1,6 +1,6 @@
Name: quaternion
-Version: 0.1.0
-Date: 2010-05-17
+Version: 0.2.0
+Date: 2011-11-03
Author: Lukas Reichlin <luk...@gm...>
Maintainer: Lukas Reichlin <luk...@gm...>
Title: Quaternion
Added: trunk/octave-forge/extra/quaternion_oo/Makefile
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/Makefile (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/Makefile 2011-11-03 21:52:30 UTC (rev 8965)
@@ -0,0 +1,16 @@
+sinclude ../../Makeconf
+
+PKG_FILES = COPYING DESCRIPTION INDEX $(wildcard inst/*)
+SUBDIRS = doc/
+
+.PHONY: $(SUBDIRS)
+
+pre-pkg::
+ @for _dir in $(SUBDIRS); do \
+ $(MAKE) -C $$_dir all; \
+ done
+
+clean:
+ @for _dir in $(SUBDIRS); do \
+ $(MAKE) -C $$_dir $(MAKECMDGOALS); \
+ done
Added: trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m 2011-11-03 21:52:30 UTC (rev 8965)
@@ -0,0 +1,9 @@
+homedir = pwd ();
+develdir = fileparts (which ("makefile_quaternion"));
+srcdir = [develdir, "/../src"];
+cd (srcdir);
+
+mkoctfile is_real_matrice.cc
+
+system ("rm *.o");
+cd (homedir);
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-03 21:51:53 UTC (rev 8964)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-03 21:52:30 UTC (rev 8965)
@@ -36,46 +36,38 @@
if (isa (a, "quaternion"))
q = a;
return;
- elseif (isnumeric (a))
- w = a;
- x = y = z = zeros (size (a), class (a));
+ elseif (is_real_matrice (a))
+ b = c = d = zeros (size (a));
else
print_usage ();
endif
case 3
+ if (! is_real_matrice (a, b, c))
+ error ("quaternion: arguments must be real matrices");
+ endif
if (! size_equal (a, b, c));
error ("quaternion: arguments must have identical sizes");
endif
- c_a = class (a);
- if (isnumeric (a) && strcmp (c_a, class (b)) && strcmp (c_a, class (c)))
- w = zeros (size (a), c_a);
- x = a;
- y = b;
- z = c;
- else
- error ("quaternion: arguments must be numeric and of the same type");
- endif
+ d = c;
+ c = b;
+ b = a;
+ a = zeros (size (a));
case 4
+ if (! is_real_matrice (a, b, c, d))
+ error ("quaternion: arguments must be real matrices");
+ endif
if (! size_equal (a, b, c, d));
error ("quaternion: arguments must have identical sizes");
endif
- c_a = class (a);
- if (isnumeric (a) && strcmp (c_a, class (b)) && \
- strcmp (c_a, class (c)) && strcmp (c_a, class (d)))
- w = a;
- x = b;
- y = c;
- z = d;
- else
- error ("quaternion: arguments must be numeric and of the same type");
- endif
otherwise
print_usage ();
endswitch
- q = class (struct ("w", w, "x", x, "y", y, "z", z), "quaternion");
+ q = class (struct ("w", a, "x", b, "y", c, "z", d), "quaternion");
+
+ ## TODO: avoid duplicate code in case 3 and 4
endfunction
Property changes on: trunk/octave-forge/extra/quaternion_oo/src
___________________________________________________________________
Added: svn:ignore
+ *.oct
Added: trunk/octave-forge/extra/quaternion_oo/src/Makefile
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/src/Makefile (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/src/Makefile 2011-11-03 21:52:30 UTC (rev 8965)
@@ -0,0 +1,8 @@
+all: is_real_matrice.oct
+
+# helper
+is_real_matrice.oct: is_real_matrice.cc
+ mkoctfile is_real_matrice.cc
+
+clean:
+ rm *.o core octave-core *.oct *~
Added: trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc 2011-11-03 21:52:30 UTC (rev 8965)
@@ -0,0 +1,61 @@
+/*
+
+Copyright (C) 2010 Lukas F. Reichlin
+
+This file is part of LTI Syncope.
+
+LTI Syncope 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.
+
+LTI Syncope 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 LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
+
+Return true if argument is a real matrix.
+
+Author: Lukas Reichlin <luk...@gm...>
+Created: September 2010
+Version: 0.1
+
+*/
+
+#include <octave/oct.h>
+
+DEFUN_DLD (is_real_matrice, args, nargout,
+ "-*- texinfo -*-\n\
+@deftypefn {Loadable Function} {} is_real_matrice (@var{a}, @dots{})\n\
+Return true if argument is a real matrix.\n\
+@var{[]} is a valid matrix.\n\
+Avoid nasty stuff like @code{true = isreal (\"a\")}.\n\
+Renamed to is_real_matrice to avoid conflicts with \n\
+is_real_matrix from the control package.\n\
+@end deftypefn")
+{
+ octave_value retval = true;
+ int nargin = args.length ();
+
+ if (nargin == 0)
+ {
+ print_usage ();
+ }
+ else
+ {
+ for (int i = 0; i < nargin; i++)
+ {
+ if (args(i).ndims () != 2 || ! args(i).is_numeric_type ()
+ || ! args(i).is_real_type ())
+ {
+ retval = false;
+ break;
+ }
+ }
+ }
+
+ return retval;
+}
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-03 22:17:19
|
Revision: 8969
http://octave.svn.sourceforge.net/octave/?rev=8969&view=rev
Author: paramaniac
Date: 2011-11-03 22:17:13 +0000 (Thu, 03 Nov 2011)
Log Message:
-----------
quaternion-oo: move q0 - q4 from /inst to /devel
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/q0.m
trunk/octave-forge/extra/quaternion_oo/devel/q1.m
trunk/octave-forge/extra/quaternion_oo/devel/q2.m
trunk/octave-forge/extra/quaternion_oo/devel/q3.m
trunk/octave-forge/extra/quaternion_oo/devel/q4.m
Removed Paths:
-------------
trunk/octave-forge/extra/quaternion_oo/inst/q0.m
trunk/octave-forge/extra/quaternion_oo/inst/q1.m
trunk/octave-forge/extra/quaternion_oo/inst/q2.m
trunk/octave-forge/extra/quaternion_oo/inst/q3.m
trunk/octave-forge/extra/quaternion_oo/inst/q4.m
Copied: trunk/octave-forge/extra/quaternion_oo/devel/q0.m (from rev 8968, trunk/octave-forge/extra/quaternion_oo/inst/q0.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q0.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q0.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -0,0 +1,9 @@
+function q = q0
+
+ if (nargin != 0)
+ print_usage ();
+ endif
+
+ q = quaternion (1, 0, 0, 0);
+
+endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/devel/q1.m (from rev 8968, trunk/octave-forge/extra/quaternion_oo/inst/q1.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q1.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q1.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -0,0 +1,9 @@
+function q = q1
+
+ if (nargin != 0)
+ print_usage ();
+ endif
+
+ q = quaternion (0, 1, 0, 0);
+
+endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/devel/q2.m (from rev 8968, trunk/octave-forge/extra/quaternion_oo/inst/q2.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q2.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q2.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -0,0 +1,9 @@
+function q = q2
+
+ if (nargin != 0)
+ print_usage ();
+ endif
+
+ q = quaternion (0, 0, 1, 0);
+
+endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/devel/q3.m (from rev 8968, trunk/octave-forge/extra/quaternion_oo/inst/q3.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q3.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q3.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -0,0 +1,9 @@
+function q = q3
+
+ if (nargin != 0)
+ print_usage ();
+ endif
+
+ q = quaternion (0, 0, 0, 1);
+
+endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/devel/q4.m (from rev 8968, trunk/octave-forge/extra/quaternion_oo/inst/q4.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q4.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q4.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -0,0 +1,9 @@
+function q = q4
+
+ if (nargin != 0)
+ print_usage ();
+ endif
+
+ q = quaternion (1, 0, 0, 0);
+
+endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/q0.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q0.m 2011-11-03 22:14:08 UTC (rev 8968)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q0.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -1,9 +0,0 @@
-function q = q0
-
- if (nargin != 0)
- print_usage ();
- endif
-
- q = quaternion (1, 0, 0, 0);
-
-endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/q1.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q1.m 2011-11-03 22:14:08 UTC (rev 8968)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q1.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -1,9 +0,0 @@
-function q = q1
-
- if (nargin != 0)
- print_usage ();
- endif
-
- q = quaternion (0, 1, 0, 0);
-
-endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/q2.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q2.m 2011-11-03 22:14:08 UTC (rev 8968)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q2.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -1,9 +0,0 @@
-function q = q2
-
- if (nargin != 0)
- print_usage ();
- endif
-
- q = quaternion (0, 0, 1, 0);
-
-endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/q3.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q3.m 2011-11-03 22:14:08 UTC (rev 8968)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q3.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -1,9 +0,0 @@
-function q = q3
-
- if (nargin != 0)
- print_usage ();
- endif
-
- q = quaternion (0, 0, 0, 1);
-
-endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/q4.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q4.m 2011-11-03 22:14:08 UTC (rev 8968)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q4.m 2011-11-03 22:17:13 UTC (rev 8969)
@@ -1,9 +0,0 @@
-function q = q4
-
- if (nargin != 0)
- print_usage ();
- endif
-
- q = quaternion (1, 0, 0, 0);
-
-endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-13 13:32:42
|
Revision: 9074
http://octave.svn.sourceforge.net/octave/?rev=9074&view=rev
Author: paramaniac
Date: 2011-11-13 13:32:36 +0000 (Sun, 13 Nov 2011)
Log Message:
-----------
quaternion-oo: add unit method, various enhancements
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
trunk/octave-forge/extra/quaternion_oo/devel/demoml.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-13 13:32:36 UTC (rev 9074)
@@ -8,6 +8,7 @@
@quaternion/rows
@quaternion/columns
@quaternion/size
+ @quaternion/unit
Overloaded and Arithmetic Operators
@quaternion/plus
@quaternion/minus
Modified: trunk/octave-forge/extra/quaternion_oo/devel/demoml.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/demoml.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/devel/demoml.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,10 +1,10 @@
q = rot2q ([0, 0, 1], pi/4)
-% [vv, theta] = q2rot (q)
+[vv, theta] = q2rot (q)
x = quaternion (0, 1, 1, 0) % nicht normiert
% s x y z
rx = q * x * conj (q) % q x q^-1
-% [vv, theta] = q2rot (rx)
+[vv, theta] = q2rot (rx)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,4 +1,4 @@
-## Copyright (C) 2010 Lukas F. Reichlin
+## Copyright (C) 2010, 2011 Lukas F. Reichlin
##
## 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
@@ -25,7 +25,7 @@
## Author: Lukas Reichlin <luk...@gm...>
## Created: August 2010
-## Version: 0.1
+## Version: 0.2
function b = abs (a)
@@ -34,6 +34,6 @@
print_usage ();
endif
- b = sqrt (a.w.^2 + a.x.^2 + a.y.^2 + a.z.^2);
+ b = sqrt (norm2 (a));
endfunction
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,3 +1,26 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Return number of columns of quaternion arrays.
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
function c = columns (a)
if (nargin != 1)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,4 +1,4 @@
-## Copyright (C) 2010 Lukas F. Reichlin
+## Copyright (C) 2010, 2011 Lukas F. Reichlin
##
## 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
@@ -20,7 +20,7 @@
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
-## Version: 0.1
+## Version: 0.2
function a = inv (a)
@@ -35,7 +35,7 @@
## TODO: quaternion arrays
- norm2 = a.w*a.w + a.x*a.x + a.y*a.y + a.z*a.z;
+ norm2 = norm2 (a);
a.w = a.w / norm2;
a.x = -a.x / norm2;
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,3 +1,26 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## matrix power operator of quaternions. Used by Octave for "q^x".
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
function a = mpower (a, b)
if (b == -1 && isa (a, "quaternion") && isscalar (a.w))
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,12 +1,38 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## power operator of quaternions. Used by Octave for "q.^x".
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
function a = power (a, b)
- if (b == -1 && isa (a, "quaternion") && isscalar (a.w))
- a = inv (a);
+ if (b == -1 && isa (a, "quaternion"))
+ norm2 = norm2 (a);
+ a.w = a.w ./ norm2;
+ a.x = -a.x ./ norm2;
+ a.y = -a.y ./ norm2;
+ a.z = -a.z ./ norm2;
else
error ("quaternion: power: case not implemeted");
endif
- ## TODO: - q1 .^ q2
- ## - arrays
+ ## TODO: q1 .^ q2
endfunction
\ No newline at end of file
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -0,0 +1,30 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{norm2} =} norm2 (@var{q})
+## Return squared norm of a quaternion.
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+
+function ret = norm2 (a)
+
+ ret = a.w.^2 + a.x.^2 + a.y.^2 + a.z.^2;
+
+endfunction
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,3 +1,26 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Return number of rows of quaternion arrays.
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
function r = rows (a)
if (nargin != 1)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m 2011-11-13 12:40:38 UTC (rev 9073)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -1,3 +1,26 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Return size of quaternion arrays.
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+
function [s, varargout] = size (a, b)
switch (nargout)
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m 2011-11-13 13:32:36 UTC (rev 9074)
@@ -0,0 +1,39 @@
+## Copyright (C) 2010 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{qabs} =} abs (@var{q})
+## Normalize quaternion to length 1 (unit quaternion).
+##
+## @example
+## q = w + x*i + y*j + z*k
+## unit (q) = q ./ sqrt (w.^2 + x.^2 + y.^2 + z.^2)
+## @end example
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: August 2010
+## Version: 0.1
+
+
+function q = unit (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ q = a ./ abs (a);
+
+endfunction
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-13 13:43:49
|
Revision: 9075
http://octave.svn.sourceforge.net/octave/?rev=9075&view=rev
Author: paramaniac
Date: 2011-11-13 13:43:25 +0000 (Sun, 13 Nov 2011)
Log Message:
-----------
quaternion-oo: add norm
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-13 13:32:36 UTC (rev 9074)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-13 13:43:25 UTC (rev 9075)
@@ -9,6 +9,7 @@
@quaternion/columns
@quaternion/size
@quaternion/unit
+ @quaternion/norm
Overloaded and Arithmetic Operators
@quaternion/plus
@quaternion/minus
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m 2011-11-13 13:43:25 UTC (rev 9075)
@@ -0,0 +1,39 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{n} =} norm (@var{q})
+## Norm of a quaternion.
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+
+function n = norm (a)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ if (! isscalar (a.w))
+ warning ("norm: use ""abs"" to calculate the lengths of quaternion arrays");
+ error ("norm: only the 2-norm of scalar quaternions is implemented until now");
+ endif
+
+ n = abs (a);
+
+endfunction
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|
|
From: <jpi...@us...> - 2011-11-14 14:54:36
|
Revision: 9087
http://octave.svn.sourceforge.net/octave/?rev=9087&view=rev
Author: jpicarbajal
Date: 2011-11-14 14:54:28 +0000 (Mon, 14 Nov 2011)
Log Message:
-----------
quaternion_oo . Adding time derivative of a quaternion as method with tests
To test use:
test @quaternion/dot
after the object oriented version of quaternion was installed.
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/dot.m
Modified: trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 14:53:49 UTC (rev 9086)
+++ trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 14:54:28 UTC (rev 9087)
@@ -94,21 +94,35 @@
We hope not to run into the c tag.
== Quaternion ==
+DONE Q = Quaternion() is the identitity quaternion 1<0,0,0> representing a null rotation.
+DONE Q = Quaternion(Q1) is a copy of the quaternion Q1
+
+DONE Q = Quaternion([S V1 V2 V3]) is a quaternion formed by specifying directly its 4 elements
+
+DONE Q = Quaternion(S) is a quaternion formed from the scalar S and zero vector part: S<0,0,0>
+
+DONE Q = Quaternion(V) is a pure quaternion with the specified vector part: 0<V>
+
+DONE Q = Quaternion(TH, V) is a unit quaternion corresponding to rotation of TH about the vector V.
+
+ Q = Quaternion(R) is a unit quaternion corresponding to the orthonormal rotation matrix R.
+
+ Q = Quaternion(T) is a unit quaternion equivalent to the rotational
+
= methods =
DONE [c] inv return inverse of quaterion
By Monday, November 07 2011 this function is equivalent to the conj function of quaternions_oo
not to inv of that package.
-DONE [e] norm: We will wrap abs from quaternions_oo
+DONE [e] norm: Wraps abs from quaternions_oo
-[] unit return unit quaternion
-[] unitize unitize this quaternion
+DONE [] unit return unit quaternion
[] plot same options as trplot()
[] interp interpolation (slerp) between q and q2, 0<=s<=1
[] scale interpolation (slerp) between identity and q, 0<=s<=1
-[] dot derivative of quaternion with angular velocity w
+DONE [x] dot derivative of quaternion with angular velocity w
= Operators =
[*] q+q2 return elementwise sum of quaternions
@@ -120,7 +134,7 @@
[] q^n return q to power n (integer only)
= Properties (read only)=
-[] s real part
-[] v vector part
-[] R 3x3 rotation matrix
-[] T 4x4 homogeneous transform matrix
+DONE [] s real part
+DONE [] v vector part
+DONE [] R 3x3 rotation matrix
+DONE [] T 4x4 homogeneous transform matrix
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/dot.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/dot.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/dot.m 2011-11-14 14:54:28 UTC (rev 9087)
@@ -0,0 +1,61 @@
+%% Copyright (c) 1998, 2000, 2005, 2007 Auburn University.
+%% 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} {} dot (q, omega)
+%% Derivative of a quaternion.
+%%
+%% Let Q be a quaternion to transform a vector from a fixed frame to
+%% a rotating frame. If the rotating frame is rotating about the
+%% [x, y, z] axes at angular rates [wx, wy, wz], then the derivative
+%% of Q is given by
+%%
+%% @example
+%% Q' = dot(Q, omega)
+%% @end example
+%%
+%% If the passive convention is used (rotate the frame, not the vector),
+%% then
+%%
+%% @example
+%% Q' = dot(Q,-omega)
+%% @end example
+%% @end deftypefn
+
+%% Adapted from: qderiv by A. S. Hodel <a.s...@en...>
+
+function qd = dot (q, Omega)
+
+ if (nargin != 2)
+ print_usage ();
+ endif
+
+ Omega = vec (Omega);
+
+ if (length (Omega) != 3)
+ error ("Quaternion:InvalidArgument: Omega must be a length 3 vector");
+ endif
+
+ qd = 0.5 * quaternion(Omega(1),Omega(2),Omega(3)) * q;
+
+endfunction
+
+%!shared q
+%! q = quaternion(3,1,0,0);
+
+%!assert(quaternion(0,0,0.5,1.5) == dot(q,[0 0 1]))
+%!assert(quaternion(0,0,2,1) == dot(q,[0 1 1]))
+
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|
|
From: <jpi...@us...> - 2011-11-14 16:34:17
|
Revision: 9092
http://octave.svn.sourceforge.net/octave/?rev=9092&view=rev
Author: jpicarbajal
Date: 2011-11-14 16:34:11 +0000 (Mon, 14 Nov 2011)
Log Message:
-----------
quaternions_oo . power function implemented
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
Modified: trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 16:24:51 UTC (rev 9091)
+++ trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 16:34:11 UTC (rev 9092)
@@ -111,26 +111,24 @@
Q = Quaternion(T) is a unit quaternion equivalent to the rotational
= methods =
-
DONE [c] inv return inverse of quaterion
-By Monday, November 07 2011 this function is equivalent to the conj function of quaternions_oo
-not to inv of that package.
-
DONE [e] norm: Wraps abs from quaternions_oo
+DONE [x] dot derivative of quaternion with angular velocity w
+DONE [c] display
+DONE [] q2tr
+DONE [*] unit return unit quaternion
-DONE [] unit return unit quaternion
[] plot same options as trplot()
[] interp interpolation (slerp) between q and q2, 0<=s<=1
[] scale interpolation (slerp) between identity and q, 0<=s<=1
-DONE [x] 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
+DONE [*] q+q2 return elementwise sum of quaternions
+DONE [*] q-q2 return elementwise difference of quaternions
+DONE [*] q*q2 return quaternion product
+DONE [*] q/q2 return q*q2.inv
+[*] q*v rotate vector by quaternion, v is 3x1
[] q^n return q to power n (integer only)
= Properties (read only)=
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 16:24:51 UTC (rev 9091)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 16:34:11 UTC (rev 9092)
@@ -23,6 +23,10 @@
function a = power (a, b)
+ if !isreal(b)
+ error('quaternion:InvalidArgument','Exponent must be real');
+ end
+
if (b == -1 && isa (a, "quaternion"))
norm2 = norm2 (a);
a.w = a.w ./ norm2;
@@ -30,9 +34,19 @@
a.y = -a.y ./ norm2;
a.z = -a.z ./ norm2;
else
- error ("quaternion: power: case not implemeted");
+
+ na = abs (a);
+ th = acos (a.w / na);
+ n = [a.x a.y a.z] ./ sqrt((a.x).^2 + (a.y).^2 + (a.z).^2);
+
+ nab = na.^b;
+ a.w = nab .* cos (b.*th);
+
+ snt = sin (b.*th);
+ a.x = n(:,1) .* nab .* snt;
+ a.y = n(:,2) .* nab .* snt;
+ a.z = n(:,3) .* nab .* snt;
+
endif
- ## TODO: q1 .^ q2
-
-endfunction
\ No newline at end of file
+endfunction
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|
|
From: <jpi...@us...> - 2011-11-14 16:55:22
|
Revision: 9095
http://octave.svn.sourceforge.net/octave/?rev=9095&view=rev
Author: jpicarbajal
Date: 2011-11-14 16:55:12 +0000 (Mon, 14 Nov 2011)
Log Message:
-----------
quaternions_oo. retouching power and RTB transition file
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
Modified: trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 16:54:18 UTC (rev 9094)
+++ trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 16:55:12 UTC (rev 9095)
@@ -129,7 +129,7 @@
DONE [*] q/q2 return q*q2.inv
[*] q*v rotate vector by quaternion, v is 3x1
-[] q^n return q to power n (integer only)
+DONE [*] q^n return q to power n (real)
= Properties (read only)=
DONE [] s real part
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 16:54:18 UTC (rev 9094)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 16:55:12 UTC (rev 9095)
@@ -1,4 +1,5 @@
## Copyright (C) 2010 Lukas F. Reichlin
+## 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
@@ -20,7 +21,6 @@
## Created: May 2010
## Version: 0.1
-
function a = power (a, b)
if !isreal(b)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-14 16:54:18 UTC (rev 9094)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-14 16:55:12 UTC (rev 9095)
@@ -51,7 +51,7 @@
otherwise
print_usage ();
endswitch
-
+
if (! is_real_matrice (a, b, c, d))
error ("quaternion: arguments must be real matrices");
endif
@@ -59,7 +59,7 @@
if (! size_equal (a, b, c, d));
error ("quaternion: arguments must have identical sizes");
endif
-
+
q = class (struct ("w", a, "x", b, "y", c, "z", d), "quaternion");
endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <jpi...@us...> - 2011-11-14 22:35:52
|
Revision: 9098
http://octave.svn.sourceforge.net/octave/?rev=9098&view=rev
Author: jpicarbajal
Date: 2011-11-14 22:35:45 +0000 (Mon, 14 Nov 2011)
Log Message:
-----------
quaternions_oo . Power vectorized to matrices of quaternions.
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
Modified: trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 19:13:11 UTC (rev 9097)
+++ trunk/octave-forge/extra/quaternion_oo/devel/RV9_Quaternions.txt 2011-11-14 22:35:45 UTC (rev 9098)
@@ -106,9 +106,9 @@
DONE Q = Quaternion(TH, V) is a unit quaternion corresponding to rotation of TH about the vector V.
- Q = Quaternion(R) is a unit quaternion corresponding to the orthonormal rotation matrix R.
+DONE Q = Quaternion(R) is a unit quaternion corresponding to the orthonormal rotation matrix R.
- Q = Quaternion(T) is a unit quaternion equivalent to the rotational
+DONE Q = Quaternion(T) is a unit quaternion equivalent to the rotational
= methods =
DONE [c] inv return inverse of quaterion
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 19:13:11 UTC (rev 9097)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-14 22:35:45 UTC (rev 9098)
@@ -33,8 +33,9 @@
a.x = -a.x ./ norm2;
a.y = -a.y ./ norm2;
a.z = -a.z ./ norm2;
- else
+ elseif isvector (a.w)
+
na = abs (a);
th = acos (a.w ./ na);
n = bsxfun (@rdivide, [a.x a.y a.z] ,sqrt ((a.x).^2 + (a.y).^2 + (a.z).^2));
@@ -47,6 +48,23 @@
a.y = n(:,2) .* nab .* snt;
a.z = n(:,3) .* nab .* snt;
+ else
+
+ na = abs (a);
+ th = acos (a.w ./ na);
+ nv = sqrt ((a.x).^2 + (a.y).^2 + (a.z).^2);
+ n.x = a.x ./ nv;
+ n.y = a.y ./ nv;
+ n.z = a.z ./ nv;
+
+ nab = na.^b;
+ a.w = nab .* cos (b.*th);
+
+ snt = sin (b.*th);
+ a.x = n.x .* nab .* snt;
+ a.y = n.y .* nab .* snt;
+ a.z = n.z .* nab .* snt;
+
endif
endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-15 14:12:52
|
Revision: 9101
http://octave.svn.sourceforge.net/octave/?rev=9101&view=rev
Author: paramaniac
Date: 2011-11-15 14:12:41 +0000 (Tue, 15 Nov 2011)
Log Message:
-----------
quaternion_oo: minor style fixes
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/conj.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ctranspose.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/eq.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/horzcat.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ispure.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/minus.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mtimes.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/plus.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsref.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/times.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/transpose.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uminus.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/vertcat.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/q_2x2.m
Added: trunk/octave-forge/extra/quaternion_oo/devel/q_2x2.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q_2x2.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q_2x2.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -0,0 +1,10 @@
+w = [2, 6; 10, 14];
+
+x = [3, 7; 11, 15];
+
+y = [4, 8; 12, 16];
+
+z = [5, 9; 13, 17];
+
+q = quaternion (w, x, y, z)
+
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/abs.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -27,7 +27,6 @@
## Created: August 2010
## Version: 0.2
-
function b = abs (a)
if (nargin != 1)
@@ -36,4 +35,4 @@
b = sqrt (norm2 (a));
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/columns.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -20,7 +20,6 @@
## Created: May 2010
## Version: 0.1
-
function c = columns (a)
if (nargin != 1)
@@ -29,4 +28,4 @@
c = columns (a.w);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/conj.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/conj.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/conj.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -27,7 +27,6 @@
## Created: May 2010
## Version: 0.1
-
function a = conj (a)
if (nargin != 1)
@@ -38,4 +37,4 @@
a.y = -a.y;
a.z = -a.z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ctranspose.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ctranspose.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ctranspose.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Conjugate transpose of a quaternion. Used by Octave for "q'"
+## Conjugate transpose of a quaternion. Used by Octave for "q'".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = ctranspose (a)
if (nargin != 1)
@@ -29,4 +28,4 @@
a = conj (transpose (a));
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -28,7 +28,6 @@
## Created: May 2010
## Version: 0.1
-
function a = diag (a, b = 0)
if (nargin == 0 || nargin > 2)
@@ -40,4 +39,4 @@
a.y = diag (a.y, b);
a.z = diag (a.z, b);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/display.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -20,7 +20,6 @@
## Created: May 2010
## Version: 0.2
-
function display (q)
name = inputname(1);
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/eq.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/eq.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/eq.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Equal to operator for two quaternions. Used by Octave for "q1 == q2"
+## Equal to operator for two quaternions. Used by Octave for "q1 == q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function flg = eq (a, b)
if (! isa (a, "quaternion"))
@@ -33,4 +32,4 @@
flg = (a.w == b.w) && (a.x == b.x) && (a.y == b.y) && (a.z == a.z);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/horzcat.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/horzcat.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/horzcat.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Horizontal concatenation of quaternions. Used by Octave for "[q1, q2]"
+## Horizontal concatenation of quaternions. Used by Octave for "[q1, q2]".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = horzcat (varargin)
qstr = cellfun (@quaternion, varargin); # uniformoutput = true !
@@ -32,4 +31,4 @@
q = quaternion (w, x, y, z);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/inv.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -22,7 +22,6 @@
## Created: May 2010
## Version: 0.2
-
function a = inv (a)
if (nargin != 1)
@@ -42,4 +41,4 @@
a.y = -a.y / norm2;
a.z = -a.z / norm2;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ispure.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ispure.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ispure.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -22,7 +22,6 @@
## Created: May 2010
## Version: 0.1
-
function flg = ispure (a)
if (nargin != 1)
@@ -31,4 +30,4 @@
flg = all (all (abs (a.w) < eps));
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,15 +14,14 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Element-wise left division for quaternions. Used by Octave for "q1 .\ q2"
+## Element-wise left division for quaternions. Used by Octave for "q1 .\ q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = ldivide (a, b)
q = a.^-1 .* b;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/minus.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/minus.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/minus.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Subtraction of two quaternions. Used by Octave for "q1 - q2"
+## Subtraction of two quaternions. Used by Octave for "q1 - q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = minus (a, b)
if (! isa (a, "quaternion"))
@@ -36,4 +35,4 @@
a.y = a.y - b.y;
a.z = a.z - b.z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,15 +14,14 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Matrix left division for quaternions. Used by Octave for "q1 \ q2"
+## Matrix left division for quaternions. Used by Octave for "q1 \ q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = mldivide (a, b)
q = inv (a) * b;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mpower.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -20,7 +20,6 @@
## Created: May 2010
## Version: 0.1
-
function a = mpower (a, b)
if (b == -1 && isa (a, "quaternion") && isscalar (a.w))
@@ -32,4 +31,4 @@
## TODO: - q1 ^ q2
## - arrays
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mrdivide.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,15 +14,14 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Matrix right division for quaternions. Used by Octave for "q1 / q2"
+## Matrix right division for quaternions. Used by Octave for "q1 / q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = mrdivide (a, b)
q = a * inv (b);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mtimes.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mtimes.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mtimes.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Matrix multiplication of two quaternions. Used by Octave for "q1 * q2"
+## Matrix multiplication of two quaternions. Used by Octave for "q1 * q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = mtimes (a, b)
if (! isa (a, "quaternion"))
@@ -41,4 +40,4 @@
a.y = y;
a.z = z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/norm.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -22,7 +22,6 @@
## Created: November 2011
## Version: 0.1
-
function n = norm (a)
if (nargin != 1)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/plus.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/plus.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/plus.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Addition of two quaternions. Used by Octave for "q1 + q2"
+## Addition of two quaternions. Used by Octave for "q1 + q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = plus (a, b)
if (! isa (a, "quaternion"))
@@ -36,4 +35,4 @@
a.y = a.y + b.y;
a.z = a.z + b.z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/private/norm2.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -22,9 +22,8 @@
## Created: November 2011
## Version: 0.1
-
function ret = norm2 (a)
ret = a.w.^2 + a.x.^2 + a.y.^2 + a.z.^2;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -28,7 +28,6 @@
## Created: May 2010
## Version: 0.2
-
function q = quaternion (a, b, c, d)
switch (nargin)
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rdivide.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,15 +14,14 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Element-wise right division for quaternions. Used by Octave for "q1 ./ q2"
+## Element-wise right division for quaternions. Used by Octave for "q1 ./ q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = rdivide (a, b)
q = a .* b.^-1;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/rows.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -20,7 +20,6 @@
## Created: May 2010
## Version: 0.1
-
function r = rows (a)
if (nargin != 1)
@@ -29,4 +28,4 @@
r = rows (a.w);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/size.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -20,7 +20,6 @@
## Created: May 2010
## Version: 0.1
-
function [s, varargout] = size (a, b)
switch (nargout)
@@ -47,4 +46,4 @@
print_usage ();
endswitch
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsref.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsref.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsref.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Subscripted reference for quaternions. Used by Octave for "q.w"
+## Subscripted reference for quaternions. Used by Octave for "q.w".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1.1
-
function ret = subsref (q, s)
switch (s(1).type)
@@ -77,4 +76,4 @@
error ("quaternion: invalid subscript type");
endswitch
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/times.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/times.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/times.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Element-wise multiplication of two quaternions. Used by Octave for "q1 .* q2"
+## Element-wise multiplication of two quaternions. Used by Octave for "q1 .* q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = times (a, b)
if (! isa (a, "quaternion"))
@@ -41,4 +40,4 @@
a.y = y;
a.z = z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/transpose.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/transpose.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/transpose.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Transpose of a quaternion. Used by Octave for "q.'"
+## Transpose of a quaternion. Used by Octave for "q.'".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = transpose (a)
if (nargin != 1)
@@ -32,4 +31,4 @@
a.y = transpose (a.y);
a.z = transpose (a.z);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uminus.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uminus.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uminus.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Unary minus of a quaternion. Used by Octave for "-q"
+## Unary minus of a quaternion. Used by Octave for "-q".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function a = uminus (a)
a.w = -a.w;
@@ -28,4 +27,4 @@
a.y = -a.y;
a.z = -a.z;
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/unit.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -27,7 +27,6 @@
## Created: November 2011
## Version: 0.1
-
function q = unit (a)
if (nargin != 1)
@@ -36,4 +35,4 @@
q = a ./ abs (a);
-endfunction
\ No newline at end of file
+endfunction
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/vertcat.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/vertcat.m 2011-11-15 14:04:39 UTC (rev 9100)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/vertcat.m 2011-11-15 14:12:41 UTC (rev 9101)
@@ -14,13 +14,12 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Vertical concatenation of quaternions. Used by Octave for "[q1; q2]"
+## Vertical concatenation of quaternions. Used by Octave for "[q1; q2]".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
## Version: 0.1
-
function q = vertcat (varargin)
qstr = cellfun (@quaternion, varargin); # uniformoutput = true !
@@ -32,4 +31,4 @@
q = quaternion (w, x, y, z);
-endfunction
\ No newline at end of file
+endfunction
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|
|
From: <par...@us...> - 2011-11-16 10:18:29
|
Revision: 9114
http://octave.svn.sourceforge.net/octave/?rev=9114&view=rev
Author: paramaniac
Date: 2011-11-16 10:18:18 +0000 (Wed, 16 Nov 2011)
Log Message:
-----------
quaternion_oo: minor style fixes
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/PROJECTS
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
Modified: trunk/octave-forge/extra/quaternion_oo/devel/PROJECTS
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/PROJECTS 2011-11-16 07:52:13 UTC (rev 9113)
+++ trunk/octave-forge/extra/quaternion_oo/devel/PROJECTS 2011-11-16 10:18:18 UTC (rev 9114)
@@ -24,7 +24,7 @@
* Add subsasgn.
- * Implement (integer) power and mpower.
+ * Implement mpower.
* Inverses of quaternion arrays.
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m 2011-11-16 07:52:13 UTC (rev 9113)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/ldivide.m 2011-11-16 10:18:18 UTC (rev 9114)
@@ -14,7 +14,7 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Element-wise left division for quaternions. Used by Octave for "q1 .\ q2".
+## Element-wise left division for quaternions. Used by Octave for "q1 .\\ q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m 2011-11-16 07:52:13 UTC (rev 9113)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/mldivide.m 2011-11-16 10:18:18 UTC (rev 9114)
@@ -14,7 +14,7 @@
## along with this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
-## Matrix left division for quaternions. Used by Octave for "q1 \ q2".
+## Matrix left division for quaternions. Used by Octave for "q1 \\ q2".
## Author: Lukas Reichlin <luk...@gm...>
## Created: May 2010
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-16 07:52:13 UTC (rev 9113)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/power.m 2011-11-16 10:18:18 UTC (rev 9114)
@@ -26,7 +26,7 @@
function a = power (a, b)
if (! isreal (b))
- error("quaternion: power: exponent must be real");
+ error ("quaternion: power: exponent must be real");
endif
## NOTE: if b is real, a is always a quaternion because
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-17 20:52:23
|
Revision: 9120
http://octave.svn.sourceforge.net/octave/?rev=9120&view=rev
Author: paramaniac
Date: 2011-11-17 20:52:16 +0000 (Thu, 17 Nov 2011)
Log Message:
-----------
quaternion_oo: add exp
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/quat.pdf
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/exp.m
Added: trunk/octave-forge/extra/quaternion_oo/devel/quat.pdf
===================================================================
(Binary files differ)
Property changes on: trunk/octave-forge/extra/quaternion_oo/devel/quat.pdf
___________________________________________________________________
Added: svn:mime-type
+ application/octet-stream
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/exp.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/exp.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/exp.m 2011-11-17 20:52:16 UTC (rev 9120)
@@ -0,0 +1,38 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Exponential of a quaternion. Used by octave for "exp (q)".
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+function q = exp (q)
+
+ if (nargin != 1)
+ print_usage ();
+ endif
+
+ normv = sqrt (q.x.^2 + q.y.^2 + q.z.^2);
+ exps = exp (q.w);
+ sinv = sin (normv);
+
+ q.w = exps .* cos (normv);
+ q.x = exps .* (q.x ./ normv) .* sinv;
+ q.y = exps .* (q.y ./ normv) .* sinv;
+ q.z = exps .* (q.z ./ normv) .* sinv;
+
+endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-18 08:14:54
|
Revision: 9128
http://octave.svn.sourceforge.net/octave/?rev=9128&view=rev
Author: paramaniac
Date: 2011-11-18 08:14:47 +0000 (Fri, 18 Nov 2011)
Log Message:
-----------
quaternion_oo: add uplus
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uplus.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-18 07:08:09 UTC (rev 9127)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-18 08:14:47 UTC (rev 9128)
@@ -10,9 +10,12 @@
@quaternion/size
@quaternion/unit
@quaternion/norm
+ @quaternion/exp
+ @quaternion/log
Overloaded and Arithmetic Operators
@quaternion/plus
@quaternion/minus
+ @quaternion/uplus
@quaternion/uminus
@quaternion/times
@quaternion/mtimes
@@ -23,12 +26,9 @@
@quaternion/mldivide
@quaternion/power
@quaternion/mpower
- @quaternion/exp
- @quaternion/log
@quaternion/transpose
@quaternion/ctranspose
@quaternion/horzcat
@quaternion/vertcat
@quaternion/subsref
@quaternion/eq
-
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uplus.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uplus.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/uplus.m 2011-11-18 08:14:47 UTC (rev 9128)
@@ -0,0 +1,27 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Unary plus of a quaternion. Used by Octave for "+q".
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+function a = uplus (a)
+
+ ## nothing to do here
+
+endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-19 15:43:58
|
Revision: 9138
http://octave.svn.sourceforge.net/octave/?rev=9138&view=rev
Author: paramaniac
Date: 2011-11-19 15:43:51 +0000 (Sat, 19 Nov 2011)
Log Message:
-----------
quaternion_oo: add cat
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/INDEX
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/cat.m
Modified: trunk/octave-forge/extra/quaternion_oo/INDEX
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-19 09:28:05 UTC (rev 9137)
+++ trunk/octave-forge/extra/quaternion_oo/INDEX 2011-11-19 15:43:51 UTC (rev 9138)
@@ -4,6 +4,7 @@
@quaternion/abs
@quaternion/conj
@quaternion/diag
+ @quaternion/inv
@quaternion/ispure
@quaternion/rows
@quaternion/columns
@@ -12,6 +13,7 @@
@quaternion/norm
@quaternion/exp
@quaternion/log
+ @quaternion/cat
Overloaded and Arithmetic Operators
@quaternion/plus
@quaternion/minus
@@ -19,7 +21,6 @@
@quaternion/uminus
@quaternion/times
@quaternion/mtimes
- @quaternion/inv
@quaternion/rdivide
@quaternion/ldivide
@quaternion/mrdivide
Added: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/cat.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/cat.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/cat.m 2011-11-19 15:43:51 UTC (rev 9138)
@@ -0,0 +1,36 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{q} =} cat (@var{dim}, @var{q1}, @var{q2}, @dots{})
+## Concatenation of quaternions along dimension @var{dim}.
+## @end deftypefn
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+function q = cat (dim, varargin)
+
+ qstr = cellfun (@quaternion, varargin); # uniformoutput = true !
+
+ w = cat (dim, qstr.w);
+ x = cat (dim, qstr.x);
+ y = cat (dim, qstr.y);
+ z = cat (dim, qstr.z);
+
+ q = quaternion (w, x, y, z);
+
+endfunction
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-11-19 21:21:49
|
Revision: 9143
http://octave.svn.sourceforge.net/octave/?rev=9143&view=rev
Author: paramaniac
Date: 2011-11-19 21:21:42 +0000 (Sat, 19 Nov 2011)
Log Message:
-----------
quaternion_oo: move files, add header
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/inst/q2rot.m
trunk/octave-forge/extra/quaternion_oo/inst/rot2q.m
Removed Paths:
-------------
trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m
trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m
Deleted: trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m 2011-11-19 21:07:44 UTC (rev 9142)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m 2011-11-19 21:21:42 UTC (rev 9143)
@@ -1,31 +0,0 @@
-function [vv, theta] = q2rot (q)
-
- if (nargin != 1 || nargout != 2)
- print_usage ();
- endif
-
- if (abs (norm (q) - 1) > 1e-12)
- warning ("quaternion: ||q||=%e, setting=1 for vv, theta", norm (q));
- q = unit (q);
- endif
-
- s = q.s;
- x = q.x;
- y = q.y;
- z = q.z;
-
- theta = acos (s) * 2;
-
- if (abs (theta) > pi)
- theta = theta - sign (theta) * pi;
- endif
-
- sin_th_2 = norm ([x, y, z]);
-
- if (sin_th_2 != 0)
- vv = [x, y, z] / sin_th_2;
- else
- vv = [x, y, z];
- endif
-
-endfunction
\ No newline at end of file
Deleted: trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m 2011-11-19 21:07:44 UTC (rev 9142)
+++ trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m 2011-11-19 21:21:42 UTC (rev 9143)
@@ -1,33 +0,0 @@
-function q = rot2q (vv, theta)
-
- if (nargin != 2 || nargout != 1)
- print_usage ();
- endif
-
- if (! isvector (vv) || length (vv) != 3)
- error ("vv must be a length three vector");
- endif
-
- if (! isscalar (theta))
- error ("theta must be a scalar");
- endif
-
- if (norm (vv) == 0)
- error ("quaternion: vv is zero");
- endif
-
- if (abs (norm (vv) - 1) > 1e-12)
- warning ("quaternion: ||vv|| != 1, normalizing")
- vv = vv / norm (vv);
- endif
-
- if (abs (theta) > 2*pi)
- warning ("quaternion: |theta| > 2 pi, normalizing")
- theta = rem (theta, 2*pi);
- endif
-
- vv = vv * sin (theta / 2);
- d = cos (theta / 2);
- q = quaternion (d, vv(1), vv(2), vv(3));
-
-endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/inst/q2rot.m (from rev 9138, trunk/octave-forge/extra/quaternion_oo/devel/q2rot.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/q2rot.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/q2rot.m 2011-11-19 21:21:42 UTC (rev 9143)
@@ -0,0 +1,55 @@
+## Copyright (C) 1998, 1999, 2000, 2002, 2005, 2006, 2007 Auburn University
+## Copyright (C) 2010, 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## TODO
+
+## Adapted from: quaternion by A. S. Hodel <a.s...@en...>
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+function [vv, theta] = q2rot (q)
+
+ if (nargin != 1 || nargout != 2)
+ print_usage ();
+ endif
+
+ if (abs (norm (q) - 1) > 1e-12)
+ warning ("quaternion: ||q||=%e, setting=1 for vv, theta", norm (q));
+ q = unit (q);
+ endif
+
+ s = q.s;
+ x = q.x;
+ y = q.y;
+ z = q.z;
+
+ theta = acos (s) * 2;
+
+ if (abs (theta) > pi)
+ theta = theta - sign (theta) * pi;
+ endif
+
+ sin_th_2 = norm ([x, y, z]);
+
+ if (sin_th_2 != 0)
+ vv = [x, y, z] / sin_th_2;
+ else
+ vv = [x, y, z];
+ endif
+
+endfunction
\ No newline at end of file
Copied: trunk/octave-forge/extra/quaternion_oo/inst/rot2q.m (from rev 9138, trunk/octave-forge/extra/quaternion_oo/devel/rot2q.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/rot2q.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/rot2q.m 2011-11-19 21:21:42 UTC (rev 9143)
@@ -0,0 +1,57 @@
+## Copyright (C) 1998, 1999, 2000, 2002, 2005, 2006, 2007 Auburn University
+## Copyright (C) 2010, 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## TODO
+
+## Adapted from: quaternion by A. S. Hodel <a.s...@en...>
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: May 2010
+## Version: 0.1
+
+function q = rot2q (vv, theta)
+
+ if (nargin != 2 || nargout != 1)
+ print_usage ();
+ endif
+
+ if (! isvector (vv) || length (vv) != 3)
+ error ("vv must be a length three vector");
+ endif
+
+ if (! isscalar (theta))
+ error ("theta must be a scalar");
+ endif
+
+ if (norm (vv) == 0)
+ error ("quaternion: vv is zero");
+ endif
+
+ if (abs (norm (vv) - 1) > 1e-12)
+ warning ("quaternion: ||vv|| != 1, normalizing")
+ vv = vv / norm (vv);
+ endif
+
+ if (abs (theta) > 2*pi)
+ warning ("quaternion: |theta| > 2 pi, normalizing")
+ theta = rem (theta, 2*pi);
+ endif
+
+ vv = vv * sin (theta / 2);
+ d = cos (theta / 2);
+ q = quaternion (d, vv(1), vv(2), vv(3));
+
+endfunction
\ No newline at end of file
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|
|
From: <par...@us...> - 2011-11-21 10:53:09
|
Revision: 9162
http://octave.svn.sourceforge.net/octave/?rev=9162&view=rev
Author: paramaniac
Date: 2011-11-21 10:53:02 +0000 (Mon, 21 Nov 2011)
Log Message:
-----------
quaternion_oo: add example to docstring
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/q_2x3.m
Added: trunk/octave-forge/extra/quaternion_oo/devel/q_2x3.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/q_2x3.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/q_2x3.m 2011-11-21 10:53:02 UTC (rev 9162)
@@ -0,0 +1,10 @@
+w = [2, 6, 10; 14, 18, 22];
+
+x = [3, 7, 11; 15, 19, 23];
+
+y = [4, 8, 12; 16, 20, 24];
+
+z = [5, 9, 13; 17, 21, 25];
+
+q = quaternion (w, x, y, z)
+
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-21 01:27:28 UTC (rev 9161)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-11-21 10:53:02 UTC (rev 9162)
@@ -24,7 +24,51 @@
## @end example
##
## Arguments @var{w}, @var{x}, @var{y} and @var{z} can be scalars or
-## matrices, but they must be real and of equal size.
+## matrices, but they must be real and of equal size. If scalar part
+## @var{w} or components @var{x}, @var{y} and @var{z} of the vector
+## part are not specified, zero matrices of appropriate size are
+## assumed.
+##
+## @strong{Example}
+## @example
+## @group
+## octave:1> q = quaternion (2)
+## q = 2 + 0i + 0j + 0k
+##
+## octave:2> q = quaternion (3, 4, 5)
+## q = 0 + 3i + 4j + 5k
+##
+## octave:3> q = quaternion (2, 3, 4, 5)
+## q = 2 + 3i + 4j + 5k
+## @end group
+## @end example
+## @example
+## @group
+## octave:4> w = [2, 6, 10; 14, 18, 22];
+## octave:5> x = [3, 7, 11; 15, 19, 23];
+## octave:6> y = [4, 8, 12; 16, 20, 24];
+## octave:7> z = [5, 9, 13; 17, 21, 25];
+## octave:8> q = quaternion (w, x, y, z)
+## q.w =
+## 2 6 10
+## 14 18 22
+##
+## q.x =
+## 3 7 11
+## 15 19 23
+##
+## q.y =
+## 4 8 12
+## 16 20 24
+##
+## q.z =
+## 5 9 13
+## 17 21 25
+##
+## octave:9>
+## @end group
+## @end example
+##
## @end deftypefn
## Author: Lukas Reichlin <luk...@gm...>
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-12-02 05:10:38
|
Revision: 9242
http://octave.svn.sourceforge.net/octave/?rev=9242&view=rev
Author: paramaniac
Date: 2011-12-02 05:10:32 +0000 (Fri, 02 Dec 2011)
Log Message:
-----------
quaternion: deactivate subsasgn because of strange effects
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/subsasgn.m
Removed Paths:
-------------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsasgn.m
Copied: trunk/octave-forge/extra/quaternion_oo/devel/subsasgn.m (from rev 9241, trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsasgn.m)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/subsasgn.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/subsasgn.m 2011-12-02 05:10:32 UTC (rev 9242)
@@ -0,0 +1,81 @@
+## Copyright (C) 2011 Lukas F. Reichlin
+##
+## 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/>.
+
+## -*- texinfo -*-
+## Subscripted assignment for quaternions.
+## Used by Octave for "q.key = value".
+
+## Author: Lukas Reichlin <luk...@gm...>
+## Created: November 2011
+## Version: 0.1
+
+function ret = subsasgn (q, idx, val)
+idx, val
+ error ("quaternion: subsasgn: under construction");
+
+ switch (idx(1).type)
+ case "."
+ if (length (idx) == 1)
+ ret = set (q, idx.subs, val);
+ else
+ prop = idx(1).subs;
+ sys = set (q, prop, subsasgn (get (q, prop), idx(2:end), val));
+ endif
+
+ otherwise
+ error ("quaternion: subsasgn: invalid subscripted assignment type");
+
+ endswitch
+
+ ## TODO: q.w = matrix
+ ## q.x(:, 1) = matrix
+
+ ## TODO: q(1:2, 3) = quaternion
+
+ switch (s(1).type)
+ case "." # q.w
+ switch (tolower (s(1).subs))
+ case {"w", "s"} # scalar part
+ ## ret = subsref (q.w, s(2:end));
+ ret = q.w;
+ case {"x", "i"}
+ ## ret = subsref (q.x, s(2:end));
+ ret = q.x;
+ case {"y", "j"}
+ ## ret = subsref (q.y, s(2:end));
+ ret = q.y;
+ case {"z", "k"}
+ ## ret = subsref (q.z, s(2:end));
+ ret = q.z;
+ case "v" # vector part, scalar part set to zero
+ q.w = zeros (size (q.w), class (q.w));
+ ## ret = subsref (q, s(2:end));
+ ret = q;
+ otherwise
+ error ("quaternion: invalid subscript name");
+ endswitch
+
+ case "()" # q(...)
+ w = subsref (q.w, s);
+ x = subsref (q.x, s);
+ y = subsref (q.y, s);
+ z = subsref (q.z, s);
+ ret = quaternion (w, x, y, z);
+
+ otherwise
+ error ("quaternion: invalid subscript type");
+ endswitch
+
+endfunction
Deleted: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsasgn.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsasgn.m 2011-12-01 21:58:07 UTC (rev 9241)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/subsasgn.m 2011-12-02 05:10:32 UTC (rev 9242)
@@ -1,81 +0,0 @@
-## Copyright (C) 2011 Lukas F. Reichlin
-##
-## 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/>.
-
-## -*- texinfo -*-
-## Subscripted assignment for quaternions.
-## Used by Octave for "q.key = value".
-
-## Author: Lukas Reichlin <luk...@gm...>
-## Created: November 2011
-## Version: 0.1
-
-function ret = subsasgn (q, idx, val)
-
- error ("quaternion: subsasgn: under construction");
-
- switch (idx(1).type)
- case "."
- if (length (idx) == 1)
- ret = set (q, idx.subs, val);
- else
- prop = idx(1).subs;
- sys = set (q, prop, subsasgn (get (q, prop), idx(2:end), val));
- endif
-
- otherwise
- error ("quaternion: subsasgn: invalid subscripted assignment type");
-
- endswitch
-
- ## TODO: q.w = matrix
- ## q.x(:, 1) = matrix
-
- ## TODO: q(1:2, 3) = quaternion
-
- switch (s(1).type)
- case "." # q.w
- switch (tolower (s(1).subs))
- case {"w", "s"} # scalar part
- ## ret = subsref (q.w, s(2:end));
- ret = q.w;
- case {"x", "i"}
- ## ret = subsref (q.x, s(2:end));
- ret = q.x;
- case {"y", "j"}
- ## ret = subsref (q.y, s(2:end));
- ret = q.y;
- case {"z", "k"}
- ## ret = subsref (q.z, s(2:end));
- ret = q.z;
- case "v" # vector part, scalar part set to zero
- q.w = zeros (size (q.w), class (q.w));
- ## ret = subsref (q, s(2:end));
- ret = q;
- otherwise
- error ("quaternion: invalid subscript name");
- endswitch
-
- case "()" # q(...)
- w = subsref (q.w, s);
- x = subsref (q.x, s);
- y = subsref (q.y, s);
- z = subsref (q.z, s);
- ret = quaternion (w, x, y, z);
-
- otherwise
- error ("quaternion: invalid subscript type");
- endswitch
-
-endfunction
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|
|
From: <par...@us...> - 2011-12-02 05:26:09
|
Revision: 9243
http://octave.svn.sourceforge.net/octave/?rev=9243&view=rev
Author: paramaniac
Date: 2011-12-02 05:26:03 +0000 (Fri, 02 Dec 2011)
Log Message:
-----------
quaternion: add test
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/devel/qbug.m
trunk/octave-forge/extra/quaternion_oo/inst/test_quaternion.m
Added: trunk/octave-forge/extra/quaternion_oo/devel/qbug.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/qbug.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/devel/qbug.m 2011-12-02 05:26:03 UTC (rev 9243)
@@ -0,0 +1,3 @@
+q = quaternion (2, 3, 4, 5)
+
+diag ([q, q, q])
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m 2011-12-02 05:10:32 UTC (rev 9242)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/diag.m 2011-12-02 05:26:03 UTC (rev 9243)
@@ -40,3 +40,14 @@
a.z = diag (a.z, b);
endfunction
+
+
+%!shared R, S
+%! Q = quaternion (2, 3, 4, 5);
+%! R = diag ([Q, Q, Q]);
+%! W = diag ([2, 2, 2]);
+%! X = diag ([3, 3, 3]);
+%! Y = diag ([4, 4, 4]);
+%! Z = diag ([5, 5, 5]);
+%! S = quaternion (W, X, Y, Z);
+%!assert (R, S);
Added: trunk/octave-forge/extra/quaternion_oo/inst/test_quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/test_quaternion.m (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/inst/test_quaternion.m 2011-12-02 05:26:03 UTC (rev 9243)
@@ -0,0 +1,2 @@
+test @quaternion/diag
+test @quaternion/dot
\ No newline at end of file
This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.
|
|
From: <par...@us...> - 2011-12-02 06:19:21
|
Revision: 9245
http://octave.svn.sourceforge.net/octave/?rev=9245&view=rev
Author: paramaniac
Date: 2011-12-02 06:19:13 +0000 (Fri, 02 Dec 2011)
Log Message:
-----------
quaternion_oo: support n-dimensional arrays of quaternions
Modified Paths:
--------------
trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m
trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
trunk/octave-forge/extra/quaternion_oo/src/Makefile
Added Paths:
-----------
trunk/octave-forge/extra/quaternion_oo/src/is_real_array.cc
Removed Paths:
-------------
trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc
Modified: trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m 2011-12-02 05:59:39 UTC (rev 9244)
+++ trunk/octave-forge/extra/quaternion_oo/devel/makefile_quaternion.m 2011-12-02 06:19:13 UTC (rev 9245)
@@ -12,7 +12,7 @@
srcdir = [develdir, "/../src"];
cd (srcdir);
-mkoctfile is_real_matrice.cc
+mkoctfile is_real_array.cc
system ("rm *.o");
cd (homedir);
\ No newline at end of file
Modified: trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-12-02 05:59:39 UTC (rev 9244)
+++ trunk/octave-forge/extra/quaternion_oo/inst/@quaternion/quaternion.m 2011-12-02 06:19:13 UTC (rev 9245)
@@ -98,7 +98,7 @@
print_usage ();
endswitch
- if (! is_real_matrice (a, b, c, d))
+ if (! is_real_array (a, b, c, d))
error ("quaternion: arguments must be real matrices");
endif
Modified: trunk/octave-forge/extra/quaternion_oo/src/Makefile
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/src/Makefile 2011-12-02 05:59:39 UTC (rev 9244)
+++ trunk/octave-forge/extra/quaternion_oo/src/Makefile 2011-12-02 06:19:13 UTC (rev 9245)
@@ -1,8 +1,8 @@
-all: is_real_matrice.oct
+all: is_real_array.oct
# helper
-is_real_matrice.oct: is_real_matrice.cc
- mkoctfile is_real_matrice.cc
+is_real_array.oct: is_real_array.cc
+ mkoctfile is_real_array.cc
clean:
rm *.o core octave-core *.oct *~
Copied: trunk/octave-forge/extra/quaternion_oo/src/is_real_array.cc (from rev 9244, trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc)
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/src/is_real_array.cc (rev 0)
+++ trunk/octave-forge/extra/quaternion_oo/src/is_real_array.cc 2011-12-02 06:19:13 UTC (rev 9245)
@@ -0,0 +1,60 @@
+/*
+
+Copyright (C) 2011 Lukas F. Reichlin
+
+This file is part of LTI Syncope.
+
+LTI Syncope 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.
+
+LTI Syncope 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 LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
+
+Return true if argument is a real array.
+
+Author: Lukas Reichlin <luk...@gm...>
+Created: November 2011
+Version: 0.2
+
+*/
+
+#include <octave/oct.h>
+
+DEFUN_DLD (is_real_array, args, nargout,
+ "-*- texinfo -*-\n\
+@deftypefn {Loadable Function} {} is_real_array (@var{a}, @dots{})\n\
+Return true if argument is a real array.\n\
+@var{[]} is a valid array.\n\
+Avoid nasty stuff like @code{true = isreal (\"a\")}.\n\
+@end deftypefn")
+{
+ octave_value retval = true;
+ int nargin = args.length ();
+
+ if (nargin == 0)
+ {
+ print_usage ();
+ }
+ else
+ {
+ for (int i = 0; i < nargin; i++)
+ {
+ // args(i).ndims () should be always >= 2
+ if (args(i).ndims () < 2 || ! args(i).is_numeric_type ()
+ || ! args(i).is_real_type ())
+ {
+ retval = false;
+ break;
+ }
+ }
+ }
+
+ return retval;
+}
Deleted: trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc
===================================================================
--- trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc 2011-12-02 05:59:39 UTC (rev 9244)
+++ trunk/octave-forge/extra/quaternion_oo/src/is_real_matrice.cc 2011-12-02 06:19:13 UTC (rev 9245)
@@ -1,61 +0,0 @@
-/*
-
-Copyright (C) 2010 Lukas F. Reichlin
-
-This file is part of LTI Syncope.
-
-LTI Syncope 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.
-
-LTI Syncope 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 LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
-
-Return true if argument is a real matrix.
-
-Author: Lukas Reichlin <luk...@gm...>
-Created: September 2010
-Version: 0.1
-
-*/
-
-#include <octave/oct.h>
-
-DEFUN_DLD (is_real_matrice, args, nargout,
- "-*- texinfo -*-\n\
-@deftypefn {Loadable Function} {} is_real_matrice (@var{a}, @dots{})\n\
-Return true if argument is a real matrix.\n\
-@var{[]} is a valid matrix.\n\
-Avoid nasty stuff like @code{true = isreal (\"a\")}.\n\
-Renamed to is_real_matrice to avoid conflicts with \n\
-is_real_matrix from the control package.\n\
-@end deftypefn")
-{
- octave_value retval = true;
- int nargin = args.length ();
-
- if (nargin == 0)
- {
- print_usage ();
- }
- else
- {
- for (int i = 0; i < nargin; i++)
- {
- if (args(i).ndims () != 2 || ! args(i).is_numeric_type ()
- || ! args(i).is_real_type ())
- {
- retval = false;
- break;
- }
- }
- }
-
- return retval;
-}
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