At 07:48 AM 3/25/2011, you wrote:
So to find out the syntax to do the rotation I should just do the
rotation? Good advice!
There is already code how to build the rotation
on the blog, just add some rotation to it by RTFM.
I dont have the time to write your code, sorry
for that, maybe you should try yourself at least, instead
of sending ironic reactions. Good luck!
Luckily I found out that you DID help someone last year with a similar
question...
http://groups.google.com/group/maya_he3d/browse_thread/thread/89a70ce38b4bfa86/898235052365b39f
So I'm one step closer to getting the line of code I need...
Thanks.
On Mar 21, 8:58 pm, Jan Berger <[email protected]> wrote:
> The example in the blog just spits out what has
> been put into the TransformationMatrix.
> The question is whether when you add a rotation
> this will be kept track of as well, right?
> If I were you I would take the code from the blog
> and add some rotation either with rotateBy
> or addRotation and then see what it spits out.
> Sorry I can not give you direct answers and/or write code ...
>
> At 10:34 AM 3/21/2011, you wrote:
>
>
>
>
>
> >My current mel script that I'd like to turn into a scripted plugin:
> >for ($obj in $hir){
> > string $type = `nodeType $obj`;
> > if (`gmatch joint $type`){
> > float $jo[] ={};
> > $jo[0] = `getAttr ($obj + ".jointOrientX")`;
> > $jo[1] = `getAttr ($obj + ".jointOrientY")`;
> > $jo[2] = `getAttr ($obj + ".jointOrientZ")`;
> > rotate -r -os $jo[0] $jo[1] $jo[2] c;
> > }
> > float $rot[] = `xform -q -os -ro $obj`;
> > rotate -r -os $rot[0] $rot[1] $rot[2] $target;
> >}
> >By "classic way" do you mean using the MMatrix class?
> >Because 'AK Eric' says in the above mentioned description that the
> >"MTransformationMatrix [class] will keep track of rotations past 360
> >degrees & rotation order of the node, while MMatrix objects will not.
> >It makes sense: A matrix itself stores orientations as vectors, which
> >have no concept how how far they’ve been ‘rotated’, so the MMatrix
> >object doesn’t track this data. But behind the scenes, the
> >MTransformationMatrix does track this info..."
> >http://www.akeric.com/blog/?p=1067
> >The whole point of the plugin I want to create is to add up how many
> >times the source nodes have spun and incrementaly add the rotations
> >together and output it on to one node. It sounds like
> >"MTransformationMatrix::rotateBy" would allow me to do this?
> >http://download.autodesk.com/us/maya/2010help/api/class_m_transformat...
> >Thanks!
>
> >On Mar 21, 6:25 pm, "[email protected]" <[email protected]> wrote:
>
> > > You can match transformations with different rotation orders,
> > > because internally the rotation order is irrelevant, it is only used
> > > when calculating the input and the output ( given it is rotation ).
> > > Internally the 4x4 matrix is just a bunch of vectors, that dont
> > > know anything about rotation orders and
how many times they spun around.
> > > So I am not sure if the classic way will
get you what you are looking for.
>
> > > t <[email protected]> hat am 21. März 2011 um 03:04 geschrieben:
>
> > > > OK! Due to further research, it seems that matching rotations of
> > > > different rotation orders is a mathmatical imposibility;
> > > >http://en.wikipedia.org/wiki/Rotation_(mathematics)
> > > > So, the question now is;
>
> > > > What would be the scripted plugin code to do 'relative' additive
> > > > rotations on one transform from the rotation values of nodes in a
> > > > hierarchy?
>
> > > > I'd like to use this class that supports rotations past 360 degrees
> > > > using "MTransformationMatrix::rotateBy"
> > > >http://download.autodesk.com/us/maya/2010
help/api/class_m_transformat...
>
> > > > Thanks!
>
> > > > --
> > > >http://groups.google.com/group/python_inside_maya-Hide quoted text -
>
> > > - Show quoted text -
>
> >--
> >http://groups.google.com/group/python_inside_maya
>
> Jan Berger
> [email protected] ::www.janberger.de - Hide quoted text -
>
> - Show quoted text -
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http://groups.google.com/group/python_inside_maya
Jan Berger
[email protected] :: www.janberger.de
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