Opencascade visualization in QT

medihe

Hi everyone,

I am trying to execute an opencascade example: "MakeBottle". This example returns a TopoDS_Shape. I have been able to compile but I am not see any bottle. The qt window is empty. You can find the code below:

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

  QApplication a(argc, argv);

  // create a Qt window
  QWidget *window = new QWidget();

    // create a bottle (TopoDS_Shape)
  TopoDS_Shape myBottle = MakeBottle(70., 120., 30.);

  // th DisplayDonnection
  Handle(Aspect_DisplayConnection) aDisplayConnection;

  // the GraphicDriver
  Handle(OpenGl_GraphicDriver) aGraphicDriver = new OpenGl_GraphicDriver(aDisplayConnection);

  // creating the Viewer
  Handle(V3d_Viewer) aViewer = new V3d_Viewer(aGraphicDriver, Standard_ExtString("my3dViewer"));

  // creating a View
  Handle(V3d_View) aView = aViewer->CreateView();


  Handle(WNT_Window) wind = new WNT_Window((Aspect_Handle)window->winId());

  // the Interactive context
  Handle(AIS_InteractiveContext) aContext = new AIS_InteractiveContext(aViewer);

  Handle(AIS_Shape) anAISShape = new AIS_Shape(myBottle);
  aContext->Display(anAISShape, true);

  aView->SetWindow(wind);

  window->show();
  return a.exec();

}

Thanks in advance.

Kind regards.

SGaist

Hi,

OpenCascade is providing Qt examples, did you try them ?

gde23

I guess the problem is rather related to the setup of the OpenGl context for the viewer or something like that than to OCCT. What OS are you on?