[osg-users] how to integrate osg into qt window?

[sunpeng]

I've read examples/osgviewerQt, and written codes:

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    Window window1;   


    osgViewer::Viewer* viewer = new osgViewer::Viewer();
    osg::Group* root = new osg::Group();
    osg::Node* node = new osg::Node();
    node = osgDB::readNodeFile("cow.osg");
    root->addChild(node);
    osgUtil::Optimizer optimizer ;
    optimizer.optimize(root) ;
    viewer->setSceneData(root);
    viewer->setCamera(new osg::Camera());
    osg::Camera* camera = viewer->getCamera();
    osgQt::GraphicsWindowQt* gw = dynamic_cast<osgQt::GraphicsWindowQt*>( camera->getGraphicsContext() );
    osgQt::GLWidget* widget1 = gw ? gw->getGLWidget() : NULL;
    widget1->setGeometry( 100, 100, 800, 600 );
    QGridLayout* grid = new QGridLayout();
    grid->addWidget( widget1, 0, 0 );
    window1.setLayout(grid);

    viewer->realize();

    window1.show();
    return a.exec();
}

but it seems 
gw is null, i just want create osg widget( such as osgQt::GraphicsWindowQ ), and integrate into QT, how to write codes?

Thanks!

peng

[Émeric MASCHINO]

Hi,

Have a look at Wang Rui's excellent osgRecipes repository, more
particularly osg_qt example:
https://github.com/xarray/osgRecipes/blob/master/cookbook/chapter9/ch09_01/osg_qt.cpp

There was an error where a new camera was incorrectly created rather
than retrieved from the viewer. This has been fixed in the above
provided URL.

Hope this helps,

Émeric

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[sunpeng]

It works, thank you, Emeric!

peng