[vtkusers] vtkInteractorStyleUser in Python

[Charl P. Botha]

On Thu, 2004-02-26 at 12:50, Roman Putanowicz wrote:
> I remember I have read that virtual methods do not propagate
> into Python. The question is then:
> 
> How can one use vtkInteractorStyleUser in Python? 
> The problem is that since VTK 4.2 the method  SetKeyPressMethod
> is obsoleted, but as I understand the substitute for it, OnKeyPress,
> is a virtual one. 
> 
> All examples I was able to find uses SetKeyPressMethod.
> 
> I would appreciate any hints.

In Python, things are invariably simpler than you think.  Here's a
quickly slapped together example, but it should do what I think you want
to do:

# rwi is the wxVTKRenderWindowInteractor that you are using

def ce_cb(obj, evt_name):
    if obj.GetKeyCode() == 'm':
       print "you pressed m"
    elif obj.GetKeyCode() == 'i':
       print "you pressed i"
    
    if obj.GetControlKey():
       print "Control was pressed."

rwi.AddObserver('CharEvent', ce_cb)

-- 
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/