[vtkusers] Qt Events and vtkObserver

[David Doria]

I still don't follow your first question.

For you second question, what do you mean by 'interactor'? The
QVTKWidget has a vtkRenderWindowInteractor inside of it. Do you mean
share an "actor" between the QVTKWidgets? That should not be done:

http://vtk.1045678.n5.nabble.com/Should-I-use-one-actor-per-renderer-renderwindow-or-can-they-share-the-same-actor-td4954889.html
http://vtk.1045678.n5.nabble.com/Adding-an-ImageSlice-to-one-renderer-causes-the-image-to-disappear-from-a-different-renderer-td4759415.html

David


On Thu, Jun 7, 2012 at 9:37 AM, Ale <notinmyhead at gmail.com> wrote:
> Moreover I wonder how, in this case of slots usage instead of Interactor, how can I share the same interactor among several QVTKWidgets?
>
> Il giorno 07/giu/2012, alle ore 15.20, Ale ha scritto:
>
>> You're right. I'd like to "re-program" the whole behavior to adapt it to different styles... I tried the vtkObserver added to the Render Window but it seems not to be fired... Instead, i found out how to stop the propagation using  AbortFlagOn but it seems to working in a "delayed" mode. If, as instance, I set a new slice, the display update the image only (resetting the camera) but no annotation is changed.
>>
>> Il giorno 07/giu/2012, alle ore 14.53, David Doria ha scritto:
>>
>>> On Thu, Jun 7, 2012 at 5:11 AM, Ale <notinmyhead at gmail.com> wrote:
>>>> Hello,
>>>>
>>>> I had a look at Qt Event event example but I did not understand if there is a way to add observer instead of adding connection to slots since I don't know how to suppress the original event behavior. I did also tried to attach a vtkObserver but it seems not to work. Should I instantiate a InteractorStyle? Where did I have to attach it?
>>>>
>>>> Thanks,
>>>> Ale
>>>
>>> You'll have to be a little more specific.
>>>
>>> I just added this example on how to connect a VTK event to a Qt slot.
>>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Qt/EventQtSlotConnect
>>>
>>> Is this what you're trying to do? If not, please say what is producing
>>> the event, and where you want to handle/observe the event.
>>>
>>> David
>>
>
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