[vtkusers] about the cell picker in vtkInteractorStyleTrackballActor

[John Biddiscombe]

Yixun
> The vtkInteractorStyleTrackballActor uses Cell picker to pick the actor. 
> It's very slow. I want to change the cell picker to propPicker. I cannot 
> find the member method to change the cell picker to prop picker in 
> vtkInteractorStyleTrackballActor. Is the only method to inherit from 
> vtkInteractorStyleTrackballActor and change the picker in this child class?

That would work. Alternatively, modify the interactor to have a Set/Get 
Picker method which would allow you to pass in a PropPicker. If you do 
this, I'll test it and check it in for you because I might want to do 
the same in the near future. (It should only need a couple of small 
changes I think - I'd need to look at the code again...)

JB



-- 
John Biddiscombe,                            email:biddisco @ cscs.ch
http://www.cscs.ch/about/BJohn.php
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