[vtkusers] vtkPointPicker

[Giancarlo Amati]

Hi everybody,

I have a question on how work the vtkPointPiker. I suppose that when I 
will pass the x y mouse coordinate to the Pick function, a ray start from 
where to where? I suppose from the camera position to the point specified 
by my mouse coordinate with z=0. Is it right? 
I suppose that the Pick fuction return the nearest point that the like 
intersect, is it right?

thank for the help.

Best Regards.
Giancarlo Amati

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dott. Giancarlo Amati                  |
(amati at ira.cnr.it)                     |
                                       |
National Research Council              |
RadioAstronomical Institute            |
office phone n. +39 051 6399405        |
via Gobetti 101 - Bologna (Italy)      |
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