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Re: matlab rotx, roty, rotz, function and equivalent in octave 4.0 or pa

From: Nicholas Jankowski
Subject: Re: matlab rotx, roty, rotz, function and equivalent in octave 4.0 or packages
Date: Sun, 9 Apr 2017 20:32:23 -0400

On Fri, Apr 7, 2017 at 9:42 AM, Olaf Till <address@hidden> wrote:
On Fri, Apr 07, 2017 at 07:17:24AM -0400, RT wrote:
> Greetings,  does Octave 4.0 or one of it's packages have an equivalent to
> Matlabs rotx, roty, rotz, function

The geometry package has similar functions. CCing the maintainer.

with a quick peek geometry seems to have some similar functionality but not matlab compatible versions of those functions.

createRotation would recreate rotz if it took degrees by default.

the 3d rotation functions createRotationOx, createRotationOy, and createRotationOz would work if they weren't 4x4 matrices.  (why are they 4x4? what's the 4th value, length which stays invariant?

aliases could easily be created for those to implement the rot functions. That said, the actual implementation is so simple it's almost a shame to add the overhead of the extra function call to create them.

in Matlab, rotx, roty, and rotz appear to be part of the Phased Array System Toolbox.

>> which rotx
C:\Program Files\MATLAB\R2016b\toolbox\phased\phased\rotx.m

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