[vtkusers] How to get the result of a point probe?

[Thomas Lozano]

Hi all of you!

I´m sampling data at a point xyz with the class vtkPProbeFilter. The Input 
is a vtkPointSource centered at that position from which I want to get my 
sample result. So long that works fine. At the output I can see my  point 
inside my wireframed object and it seems that his color is correctly 
sampled (interpolated) by the PProbeFilter. But I don´t know how to get 
that result, the scalar value from that point...

Does anybody have an advice/hint for me?

thx :-)

thomas