[vtkusers] Custom Event

[Jack Leigh]

Dear all,

I am creating a system to display 4D measurements which will be received 
at random intervals.
Please could you advise on the best way to approach this.
I want to update the render window as these new points are received.
It looks like I need to set up a custom event for vtkCommand then set up 
a callback to trigger on that event. Is that correct?
How would I then fire the custom event? Do I need to do so from a 
different thread or something? I can't find an Invoke(event) or whatever 
on the WindowInteractor.

Many thanks,

Jack