[vtkusers] Vertical and horizontal line across an image

[PerezLona]

hello 

i would like to draw a vertical and horizonatl line over an image (see
appended picture). I want to move these lines with the mouse. Has VTK a
class that can draw such lines???
i used vtkLineSOurce but it did not work.

Has somebody an example???

Thanks
Perez Lona http://old.nabble.com/file/p26299732/Unbenannt.jpg 
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