Update PositionAttiudeTransform

[Daoudou Souffou]

Hi everyone ^^

I have a question.

I would like to update the position of an object with PositionAttitudeTransform. I get different values that I then pass to the matrix of my object. It works when the program is launched but after I change the values they are well recovered but when I try to give them to the matrix nothing happens. Do you have a solution??

the function of the callback for the update : 

class DepthCullBack : public osg::NodeCallback{
   
public:
    virtual void operator()(osg::Node* node, osg::NodeVisitor* nv) {
        if (nv->getVisitorType() == osg::NodeVisitor::CULL_VISITOR ||
            nv->getVisitorType() == osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN ||
            nv->getVisitorType() == osg::NodeVisitor::TRAVERSE_ALL_CHILDREN
            )
        {
            osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(nv);
            // update position
            osg::PositionAttitudeTransform* posM = static_cast<osg::PositionAttitudeTransform*>(node);
            posM->setPosition(osg::Vec3f(0.0f, 0.f,m_pPriGroup->m_dDepth));
        }
        traverse(node, nv);
    }
private:
    PRIGroup* m_pPriGroup;

};

the function update (loadIslands is the function who create my object) : 

osg::Node* PRIGroup::updateScene(int nTypeClass,osg::Group* pGroup)
{
    osg::ref_ptr<osg::Node> islandModel = new osg::Node;
    FindNamedNodeVisitor fnnv("_oceanScene");
    osg::ref_ptr<osg::PositionAttitudeTransform> positionMatrix = new osg::PositionAttitudeTransform;
    positionMatrix->setDataVariance(osg::Object::DYNAMIC);
   
    switch (nTypeClass)
    {
    case CGeneric::SHAPE_SEA:
        m_pMainScene->loadIslands("terrain_lispsm")->setCullCallback(new DepthCullBack);
        pGroup->accept(fnnv);
        if (!fnnv._foundNodes.empty())
        {
            //pGroup->addChild(positionMatrix);
            m_pMainScene->changeScene(CMainScene::CLEAR);
           
        }
        else
        {
            m_pMainScene->changeScene(CMainScene::DUSK);
        }
        return pGroup;
        break;
    default:
        break;
    }
}

thank you in advance ^^