Hi Angelo,
I believe you should handle from the osgQOpenGLWidget virtual methods,
which should be something like virtual void resizeGL( int width, int height );
As it's expected it should be called whenever there's a change in the
widget size. From there you would be able to call
osgViewer::GraphicsWindowEmbedded
resized method as
well as camera's necessary adjustment for the new size and most important
the aspect ration for this new size.
On Thursday, February 20, 2020 at 3:12:43 PM UTC+1, Angelo Emanuele
Fiorilla wrote:
>
> Hi,
> I am trying to put an osgQOpenGLWidget inside a QMainWindow. I managed to
> made it quite easily but the resulting image is stretched and I cannot
> change its aspect ratio to made it right (the cow.osg is really stretched).
> Can you help me, please? I have been struggling with this few lines of
> code for 5 days now.
>
> I can provide source code as follows...
>
> Thank you so much
>
> #include "mainwindow.h"
>
> MainWindow::MainWindow(QWidget *parent)
> : QMainWindow(parent)
> {
> QSurfaceFormat format = QSurfaceFormat::defaultFormat();
> format.setVersion(2, 0);
> format.setProfile(QSurfaceFormat::CompatibilityProfile);
> format.setRenderableType(QSurfaceFormat::OpenGL);
> format.setOption(QSurfaceFormat::DebugContext);
> format.setDepthBufferSize(24);
> format.setSamples(8);
> format.setStencilBufferSize(8);
> format.setSwapBehavior(QSurfaceFormat::DoubleBuffer);
> QSurfaceFormat::setDefaultFormat(format);
>
> osgWidget = new osgQOpenGLWidget(this);
> QObject::connect(osgWidget, &osgQOpenGLWidget::initialized, this,
> &MainWindow::setupOsgView);
>
> setCentralWidget(osgWidget);
> osgWidget->show();
> }
>
> void MainWindow::setupOsgView() {
>
> osgWidget->getOsgViewer()->setCameraManipulator(new
> osgGA::TerrainManipulator());
> osgWidget->getOsgViewer()->addEventHandler(new
> osgGA::StateSetManipulator(osgWidget->getOsgViewer()->getCamera()->getOrCreateStateSet()));
> osgWidget->getOsgViewer()->addEventHandler(new
> osgViewer::ThreadingHandler);
> osgWidget->getOsgViewer()->addEventHandler(new
> osgViewer::WindowSizeHandler);
> osgWidget->getOsgViewer()->addEventHandler(new osgViewer::StatsHandler);
> osgWidget->getOsgViewer()->addEventHandler(new
> osgViewer::RecordCameraPathHandler);
> osgWidget->getOsgViewer()->addEventHandler(new
> osgViewer::LODScaleHandler);
> osgWidget->getOsgViewer()->addEventHandler(new
> osgViewer::ScreenCaptureHandler);
>
> osg::ref_ptr<osg::Node> loadedModel = osgDB::readRefNodeFile("cow.osg");
> if(!loadedModel) {
> std::cout << "No data loaded" << std::endl;
> }
>
> osgUtil::Optimizer optimizer;
> optimizer.optimize(loadedModel);
>
> osgWidget->getOsgViewer()->setSceneData(loadedModel);
> }
>
> MainWindow::~MainWindow()
> {
>
> }
>
>
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