[osg-users] Get Parent as Transform in Absolute ?

[Vincent Bourdier]

Hi Robert,

sorry I'm not always very ... understandable, when I try to explain
something.

I've already tried getWorldMatrices() few days ago, but the result was very
different with using one PAT or MT Quat/Matrix...

That's why I'm asking if getting the PAT/MT accumulation Quat/Matrices is
easy... or not.

But if it getWorldMatrices() is the only solution, I'll will try again.

Thanks.
   Vincent.

2008/3/21, Robert Osfield <robert.osfield at gmail.com>:
>
> Hi Vincent,
>
> I'm a bit confused about what you are trying to do, is it just get the
> accumulated world matrix at a specific node?
>
> If so then node::getWorldMatrices() is what you want.  This will
> return a MatrixList, which will contain none, one or many matrices
> given that any node many have none or many parental paths containing
> transforms.
>
> Robert.
>
>
> On Fri, Mar 21, 2008 at 11:03 AM, Vincent Bourdier
> <vincent.bourdier at gmail.com> wrote:
> > Hi all,
> >
> > I'm trying to get a node's parent as Transform (PAT or MatrixTransform)
> but
> > I have to get the transformation in ABSOLUTE_RF...
> >
> > For the moment, I've done a recursive method to get Parent as Transform.
> It
> > return me the first parent as Tranform it encounter.
> >
> > I've tried this :
> >
> > > osg::ref_ptr<osg::MatrixTransform> tmp_pt = new osg::MatrixTransform;
> > > tmp_pt->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
> > > tmp_pt->setMatrix(p_mt->getMatrix());
> > >
> >
> > (where p_mt is my RELATIVE MatrixTransform)
> >
> >
> > But the method return to me a MatrixTransform in RELATIVE. It is
> possible to
> > get the Matrix in Absolute ? without traverse all the scenegraph  ?
> > Thanks.
> >
> > Regards,
> >
> >       Vincent.
> >
>
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> >
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