AttributeError: LineLogic instance has no attribute 'probe'

[Abder-Rahman Ali]

Hello,

I'm quite puzzled with an error I'm having in my code.

In the class ---> LineLogic

I have the following portion of code:

def __init__(self):
      self.probe = vtk.vtkProbeFilter()

probe.SetInputConnection(line.GetOutputPort())
probe.SetSourceData(volumeNode.GetImageData())
probe.Update()

In another class ---> LineLogicTest

I had the following portion of code:

logic = LineLogic()
probe = logic.probe
data = probe.GetOutput().GetPointData().GetScalars()

When I try running the program, I get the following error:

AttributeError: LineLogic instance has no attribute 'probe'

How can I solve this error?

Thanks.
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