[vtkusers] Origin of zoom

[Hüseyin Savaş]

Hey all,
I am using vtkInteractorStyleImage's Dolly event on my vtkImageViewer2's 
vtkRenderWindowInteractor.
I guess, it automatically zooms into the origin of render window.
What I need is to zoom into mouse's current position.
I can get mouse's current position, but I don't know what to set.
I will be very glad if someone has solution for this.
Good day you all. 


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