[vtkusers] Two questions about handling multitouch events in VTK

[HuaweiTu]

Hi Joachim,

Thanks a lot for your reply and your thoughts. Your thoughts are really
helpful. 

Accordingly, I found some information regarding your thoughts from 
http://www.vtk.org/doc/nightly/html/classvtkCamera.html <http://>  . Did you
mean using some of the listed functions such as zoom(double factor) to
achieve my purpose? 








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