[vtkusers] About vtk's renderization window.

[Brenno Ribeiro]

How to avoid that vtk's renderization window appears? What happens is that
I use the widget from QVTKWidget and because it i don't need anymore the
window created from vtk to rendering the image but I can't to cut some
points where I think this window will disappear because it influences on
the image that widget loads. I'm pasting here the code snippet since the
criation of "vtkImageActor" until the transform of the image to widget. If
you need anymore information to help me it's just to say.


 vtkImageActor     *viewer = vtkImageActor::New();

 vtkImageCast *cast = vtkImageCast::New();
 cast->SetInput(connector->GetOutput());//information about the image
 cast->SetOutputScalarTypeToUnsignedChar();
 viewer->SetInput(cast->GetOutput());

 vtkRenderer *ren1= vtkRenderer::New();
 vtkRenderWindow *renWin = vtkRenderWindow::New();

 vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
 iren->SetRenderWindow(renWin);

 renWin->SetSize( 600, 600 );

 ren1->AddActor(viewer);
 ren1->SetBackground(0.4,0.6,0.8);

 renWin->AddRenderer( ren1 );
 ren1->ResetCamera();
 ren1->GetActiveCamera()->Zoom(1.5);

 renWin->Render();

 renWin->SetStereoTypeToDresden();
 iren->GetRenderWindow()->Finalize();//doesn't help to close window
 iren->TerminateApp();////doesn't help to close the window
 widget->SetRenderWindow(renWin);//end of transform of the image to widget


-- 
Brenno Bernardes Ribeiro

Engenharia da Computação
Universidade Federal do Pará
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