Is there a way to track pan and zoom events from certain mouseManipulators?

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Hi there,

I’d like to track the user interactions of pan and zooming events that are enabled by the following manipulators:

vtkMouseCameraTrackballPanManipulator
vtkMouseCameraTrackballZoomToMouseManipulator

Does VTK expose anything related to this? At the moment I’m having to track events such as onMouseWheel, onLeftButtonPress and onLeftButtonRelease to manually compute these values, in terms of the zoom level (getParallelScale) and the drag events, when I imagine VTK is already doing this work.

I’m a little bit lost in the docs, but not completely certain i’ve not missed anything.

Many thanks!

David