Hi Robert,

Sorry if it was not understandable.

My question is : why there is difference in the rotation when I get it from
a PAT (attached under the root) or when I do a getWolrdMatrices on the same
PAT

Translation seems to be the same, but not rotation.

Thanks.

Regards,
Vincent

2008/8/3 Robert Osfield <[EMAIL PROTECTED]>

> HI Vincent,
>
> I can't really work out exactly what the problem you have, I presume
> others too had a problem understanding what the issue you have is as
> otherwise others would have posted a reply...
>
> My best guess is that you are confusing what getWorldMatrices()
> provides... if so please just read the doxygen docs for it...
>
>        /** Get the list of matrices that transform this node from
> local coordinates to world coordinates.
>          * The optional Node* haltTraversalAtNode allows the user to
> prevent traversal beyond a specifed node. */
>        MatrixList getWorldMatrices(osg::Node* haltTraversalAtNode=0) const;
>
> Please note, WorldMatrices is not local matrices, its exactly what it
> says.  local matrices and world matrices only every coincide when you
> have now transforms in your parental path.
>
> Robert.
>
> On Wed, Jul 30, 2008 at 8:24 AM, Vincent Bourdier
> <[EMAIL PROTECTED]> wrote:
> > Hi All,
> >
> > Working on a way to find the good world matrix for a node, I've
> encountered
> > some problems :
> >
> > My structure is this one :
> >
> > -root
> >   |-Node...(not osg::Tranform)
> >      |-PAT (osg::PositionAtitudeTransform)
> >
> > If I get the PAT translation and rotation, I've a vector and a Quat,
> which
> > looks good,
> > if I consider pat as a node and use _node->getWorldMatrices()[0] and get
> > Rotation and Translation, the results are not the same...
> >
> > What can do this ?
> > How to get real world coordinate form a node (Transform or not) ?
> >
> > thanks,
> >
> > Regards,
> >    Vincent.
> >
> > _______________________________________________
> > osg-users mailing list
> > osg-users@lists.openscenegraph.org
> >
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >
> >
> _______________________________________________
> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Reply via email to