[PyQt] VTK in PyQt

[Gib Bogle]

Hi Matt and Bastian,

Thanks for your responses.  I am now setting the size of the scene:

     VTKscene = QVTKRenderWindowInteractor(self)
     VTKscene.Initialize()
     VTKscene.Start()
     VTKscene.setGeometry(QtCore.QRect(200, 200, 600, 600))
     renWin = VTKscene.GetRenderWindow()

This all works nicely, and I display a cone in the scene that I can rotate.

I also create a widget and a QVBoxLayout that I hope to use as the screen to 
display VTKscene:

     page_VTK = QtGui.QWidget(self)
     layout = QtGui.QVBoxLayout(page_VTK)

I can add a couple of widgets to layout (e.g. a QGroupBox, a QSlider), and then 
add page_VTK to the list of stacked widgets.  All this behaves as expected, and 
I can switch between my screens, one of which is page_VTK.  But whatever I do I 
can't attach VTKscene to page_VTK.  If I try:

     layout.addWidget(VTKscene)

it just disappears.  Without this line I see VTKscene, on top of whatever screen 
I'm displaying.  So the crucial missing step is embedding VTKscene within layout 
(or page_VTK).  The missing step is probably very simple, but my understanding 
of how Qt works is not adequate to identify it.

Cheers
Gib

Matt Smith wrote:
> I looked through the code and two things I see different than what I
> have:
> 
> a. I set the size of my RenderWindow
> b. I keep a reference to it, which probably isn't your problem because
> your not getting a seg fault.
> 
> I've got an example but I can't verify that it works since I don't have
> vtk installed atm.
> 
> mbs
>