[vtkusers] wkVTKRWI with customized event handling?

[Sven Prevrhal]

Hi, 
 
I am using wxvtkRenderWindowInteractor and am trying to catch some events
with the AddObserver method to a vtkInteractorStyleSwitch. This does not
seem to work properly!
 
...
ist = widget.GetInteractorStyle()  # returns vtkInteractorStyleSwitch
ist.AddObserver("CharEvent", OnChar)
...
def OnChar(obj, event):
    print(event)
...
 
prints "CharEvent" as expected, but event processing continues for some keys
such as f (flies to pick spot), but not for others, e.g. 't', (toggle to
trackball mode). 
 
...
ist.AddObserver("LeftButtonPressEvent", OnLeftMouseButtonDown)
...
def OnLeftButtonDown(self, obj, event):
    print('Ha')
...
 
doesn't seem to be called at all!
 
I know I could use the wx event mechanism but I'd like to avoid it to stay
independent of wx.
 
I am wondering whether anybody else might have identified the same problems:

 

--

Sven Prevrhal, Ph.D.

Department of Radiology

University of California, San Francisco

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