[vtkusers] 2d and 3d coordinates with vtkPointPicker is possible?

[nugg]

Hi all,

   I've just take a look at the description of the vtkPointPicker class but
I didnt find how to retrieve the 2D coordinates of the pixel throught the
ray traverses and intersects with a given 3D mesh. How could I retrieve
both 2D pixel coordinates (image intersection) and 3D coordinates (mesh
intersection) of the traced ray? 

Thanks in advance.
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