Hi,
I'm trying to access a child node to perform Position Attitude Transformations
but I am unable to figure out how to do so.
My createModel(overlay, technique) is defined as follows:
> ....
> ....
> osg::Group* root = new osg::Group;
>
> // float baseHeight = center.z()-radius*0.5;
> float baseHeight = 0;
> osg::Node* baseModel = createBase(osg::Vec3(center.x(), center.y(),
> baseHeight),radius);
> osg::Node* movingModel = createFrustumGeode(2,4,45,45);
>
> if (overlay)
> {
> osgSim::OverlayNode* overlayNode = new osgSim::OverlayNode(technique);
> overlayNode->setContinuousUpdate(true);
> overlayNode->setOverlaySubgraph(movingModel);
> overlayNode->setOverlayBaseHeight(baseHeight-0.01);
> overlayNode->addChild(baseModel);
> root->addChild(overlayNode);
> }
> else
> {
>
> root->addChild(baseModel);
> }
>
> root->addChild(movingModel);
>
> return root;
> }
>
>
My main function has this code:
> ....
> ....
>
> // initialize the viewer.
> osgViewer::Viewer viewer;
>
> // load the nodes from the commandline arguments.
> osg::Node* model = createModel(overlay, technique);
> if (!model)
> {
> return 1;
> }
Now at this point in my main function, I want to access the child node of model
(say the "movingModel" node) and perform a position attitude transformation on
it.
How do I access it and perform the transformation? Any suggestions would be
welcomed by this newbie.
Thank you!
Cheers,
John
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=25923#25923
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