[vtkusers] How pick coordinate in a volume

[Francois Louis LAILLIER]

Hello Vtkusers.

 

I want to get coordinate in my volume after a picking action.

 

I use a propPicker.getpickposition but when I rotate my object I obtain
false value. 

 

For example:

 

X= 125: True

Y=98: maybe false, maybe not

Z= -44 false I have only 24 slices..... With data spacing on Z =1

 

I try with vtkpick.getpickposition and I obtain the same result. 124,
93, 12

 

I want to extract this coordinates, then I place a plane with X, Y
coords, turn the volume and place Z plane.

 

I want the coordinate in the volume, for example the left,down corner is
to 0,0,z (z=1-24 slice) 

 

How can I have this result?

 

Thanks in advance.

 

Best regards, Francois Louis.

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