[vtkusers] Again python debugging

[Willi Huber]

Anyone?



------------------------------
Willi Huber schrieb am Di., 15. Jan 2013 04:55 MEZ:

>Hello all,
>
>I am trying to do some new stuff and I am again hitting the debugging barriers of vtk in python.
>
>My code:
>
>        file = "test.mhd"
>
>        reader = vtk.vtkMetaImageReader()
>        reader.SetFileName(file)
>        reader.Update()  #just for checking because I had an observer attached to reader
>        
>
>        iren = QVTKRenderWindowInteractor(self.widget)
>        ren = vtk.vtkRenderer()
>
>        iren.GetRenderWindow().AddRenderer(ren)
>
>                      
>
>        viewer = vtk.vtkResliceImageViewer()
>        viewer.SetRenderWindow(iren.GetRenderWindow())
>
>        viewer.SetRenderer(ren)
>        viewer.SetupInteractor(iren)
>        viewer.SetInput(reader.GetOutput())
>        
>        viewer.SetSlice(50)
>        viewer.SetColorWindow(2000.0)
>        viewer.SetColorLevel(1000.0)
>        
>        layout = QtGui.QVBoxLayout()
>
>        layout.addWidget(iren)
>        
>        self.slider = QtGui.QSlider(Qt.Horizontal, self.widget)
>        layout.addWidget(self.slider)
>        
>        self.widget.setLayout(layout)
>        
>        iren.Initialize()
>        iren.Start()
>
>I can see the image in the first place.
>When I use the right mouse button everything is fine and I can zoom in and out but when using the left mouse button the app suddenly freezes and the debugging window of Win7 appears - not the VTK window. It is sth. with a malloc at least this is what the debugger told me or rather stepped in.
>I tried using the Error Observer suggested by David and mined every object I've access to. I also used the vtk.vtkFileOutputWindow() without any success. No file was written.
>(The slider isn't currently attached to any object so you can ignore it.) Am I doing sth. wrong with the initialization?
>
>Can someone help me with this?
>
>Cheers,
>Willi