[vtkusers] is there a way to capture the x-y-z coordinates of a picture in coordinate system?

[Robert Caldwell]

I've been using vtkPicking. I was using it to return the coordinates on a
sphere to control the camera view. you can subclass vtkCommand and set it as
an observer. in the subclass call (in c++):

IRen->GetPicker()->GetPickPosition(Pos);

where pos is a double[3], which will contain the xyz global coordinates.

hope this helps. i can send some code if you need it. 


Gökhan ERSOY wrote:
> 
> is there a way to capture the x-y-z coordinates of a picture in coordinate
> system? i was doing it in OpenCV. But now i have to use VTK, and i have to
> capture position values. can anybody help me?
> 
> thanks...
> *
> Gökhan*
> 
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